/* ==========================================================================
   UpBox · 优盒工具箱 —— 全站公共样式
   文件：assets/css/style.css
   作用：设计变量（含深色模式）、基础排版、顶部导航、分类导航、站内搜索、
         按钮、工具卡片、面包屑、工具面板、表单、提示组件、广告位、页脚。
   设计取向：产品级克制风格 —— 单色强调色、发丝线边框、紧凑排版、无渐变、
             无浮夸投影；深浅两套共用同一套语义变量。
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计变量
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  /* 页面宽度基准：1240px。
     取值依据（主流站点容器宽度）：
       GitHub 1280 / Tailwind 文档 1536 / Bootstrap xxl 1320 / MDN 1220 / Stripe 1080
     1240 兼顾了「不显空旷」与「不显局促」：
       1366px 笔记本 → 左右各留 63px 外边距 + 24px 内边距，视觉舒展
       1440px → 左右各 100px
       1920px → 内容居中不拉伸，正文行长仍控制在舒适区间
       1280px → 自动转为流式（内容 1232px）
     工具页双栏面板由此从 477px 提升到约 589px，编辑长文本明显更从容。 */
  --ub-maxw: 1240px;
  --ub-r-xs: 3px;
  --ub-r-sm: 4px;
  --ub-r: 6px;
  --ub-r-lg: 8px;

  --ub-bg: #f3f5f9;
  --ub-surface: #ffffff;
  --ub-surface-2: #f7f8fb;
  --ub-surface-3: #eceff5;
  --ub-field: #ffffff;
  --ub-border: #e2e6ee;
  --ub-border-2: #ccd3e0;

  --ub-text: #0f131a;
  --ub-text-2: #4b5361;
  --ub-text-3: #7c8492;

  --ub-accent: #2f54d9;
  --ub-accent-hover: #2544b8;
  --ub-accent-soft: #eef2fe;
  --ub-accent-fg: #ffffff;

  --ub-ok: #157f3d;
  --ub-ok-soft: #edf9f1;
  --ub-err: #c22a2a;
  --ub-err-soft: #fdecec;

  --ub-pop: 0 12px 32px -14px rgba(16, 24, 40, .30), 0 2px 6px -2px rgba(16, 24, 40, .10);
  --ub-lift: 0 8px 22px -16px rgba(16, 24, 40, .42), 0 1px 2px -1px rgba(16, 24, 40, .06);
  --ub-card-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 14px 30px -24px rgba(16, 24, 40, .45);
  --ub-header-bg: rgba(255, 255, 255, .94);
}

html.dark {
  color-scheme: dark;

  --ub-bg: #0a0c10;
  --ub-surface: #12151b;
  --ub-surface-2: #171b22;
  --ub-surface-3: #1f242d;
  --ub-field: #15181e;
  --ub-border: #252a33;
  --ub-border-2: #353c48;

  --ub-text: #e8eaf0;
  --ub-text-2: #a3a9b5;
  --ub-text-3: #707886;

  --ub-accent: #7d9bfb;
  --ub-accent-hover: #97aeff;
  --ub-accent-soft: #171e33;
  --ub-accent-fg: #0b0e13;

  --ub-ok: #4ecb7d;
  --ub-ok-soft: #0f2018;
  --ub-err: #f07171;
  --ub-err-soft: #241214;

  --ub-pop: 0 14px 36px -16px rgba(0, 0, 0, .85), 0 2px 8px -2px rgba(0, 0, 0, .6);
  --ub-lift: 0 10px 26px -18px rgba(0, 0, 0, .95), 0 1px 2px -1px rgba(0, 0, 0, .55);
  --ub-card-shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 16px 32px -26px rgba(0, 0, 0, .9);
  --ub-header-bg: rgba(10, 12, 16, .90);
}

/* --------------------------------------------------------------------------
   2. 基础排版
   -------------------------------------------------------------------------- */
* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
  /* 页面长短切换时保留滚动条占位，避免整站内容左右跳动 1 个滚动条宽度 */
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--ub-bg);
  color: var(--ub-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  font-size: 14.5px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

:focus-visible {
  /* outline 会自动跟随元素自身的圆角，这里不要再强制覆盖 border-radius */
  outline: 2px solid var(--ub-accent);
  outline-offset: 2px;
}
:focus:not(:focus-visible) { outline: none; }

/* 选中文字用品牌淡色，和整体克制风格一致 */
::selection {
  background: var(--ub-accent-soft);
  color: var(--ub-text);
}

/* 页面滚动条：细一点、弱一点，不与内容抢视线 */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--ub-border-2) transparent;
}
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--ub-border-2);
  border: 3px solid var(--ub-bg);
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover { background: var(--ub-text-3); }

/* 仅供屏幕阅读器读取的文本 */
.ub-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

h1, h2, h3 { text-wrap: balance; }

.ub-container {
  width: 100%;
  max-width: var(--ub-maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.ub-main { flex: 1 0 auto; }

.ub-muted { color: var(--ub-text-3); }
.ub-soft { color: var(--ub-text-2); }

.ub-num { font-variant-numeric: tabular-nums; }

/* 跳转到主内容（键盘可达） */
.ub-skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--ub-accent);
  color: var(--ub-accent-fg);
  border-radius: var(--ub-r);
  font-size: 13px;
  transition: top .15s ease;
}
.ub-skip:focus { top: 12px; }

/* --------------------------------------------------------------------------
   3. 顶部导航
   -------------------------------------------------------------------------- */
.ub-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--ub-header-bg);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--ub-border);
  transition: box-shadow .18s ease;
}
/* 滚动后才浮起一层极淡的投影：静止时保持干净的横向分隔线，滚动时头部有脱离感 */
.ub-header.is-scrolled { box-shadow: 0 8px 22px -20px rgba(16, 24, 40, .55); }
html.dark .ub-header.is-scrolled { box-shadow: 0 10px 26px -20px rgba(0, 0, 0, .95); }

.ub-header-row {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 56px;
}

.ub-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  font-weight: 700;
}

.ub-logo-mark {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  color: var(--ub-accent);
}

.ub-logo-name { font-size: 16px; letter-spacing: -.01em; }
.ub-logo-sub {
  font-size: 13px;
  font-weight: 500;
  color: var(--ub-text-3);
  padding-left: 8px;
  margin-left: 2px;
  border-left: 1px solid var(--ub-border);
}

.ub-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* --- 站内搜索 --- */
/* 放在 logo 与右侧操作区之间：max-width 640 + 左右自动外边距，
   宽屏下三段比例均衡（此前 520 的上限会让右侧空出一大块空白）。 */
.ub-search { position: relative; flex: 1 1 auto; max-width: 640px; margin: 0 auto; }

.ub-search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 8px 0 10px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface-2);
  transition: border-color .15s ease, background-color .15s ease, box-shadow .15s ease;
}
.ub-search-box:focus-within {
  border-color: var(--ub-accent);
  background: var(--ub-surface);
  box-shadow: 0 0 0 3px var(--ub-accent-soft);
}
.ub-search-box i { color: var(--ub-text-3); font-size: 12px; }
.ub-search-box input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ub-text);
  font-family: inherit;
  font-size: 13.5px;
}
.ub-search-box input::placeholder { color: var(--ub-text-3); }
.ub-search-box input::-webkit-search-cancel-button { cursor: pointer; }

.ub-kbd {
  display: inline-grid;
  place-items: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border: 1px solid var(--ub-border);
  border-bottom-width: 2px;
  border-radius: var(--ub-r-xs);
  background: var(--ub-surface);
  color: var(--ub-text-3);
  font-family: inherit;
  font-size: 11px;
  line-height: 1;
}

.ub-search-panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 60vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--ub-surface);
  border: 1px solid var(--ub-border-2);
  border-radius: var(--ub-r-lg);
  box-shadow: var(--ub-pop);
  padding: 4px;
  z-index: 60;
}
.ub-search-panel[hidden] { display: none; }

.ub-search-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 7px 9px;
  border-radius: var(--ub-r-sm);
  color: var(--ub-text);
  cursor: pointer;
}
.ub-search-item:hover, .ub-search-item.is-active { background: var(--ub-accent-soft); }
.ub-search-item i { color: var(--ub-text-3); font-size: 13px; width: 16px; text-align: center; }
.ub-search-item-name { font-size: 13.5px; font-weight: 600; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ub-search-item-cat { margin-left: auto; font-size: 12px; color: var(--ub-text-3); flex-shrink: 0; }
.ub-search-empty { padding: 14px 10px; text-align: center; color: var(--ub-text-3); font-size: 13px; }

/* 搜索面板底部提示行：结果数量 + 键盘操作提示 */
.ub-search-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
  padding: 7px 9px;
  border-top: 1px solid var(--ub-border);
  font-size: 11.5px;
  color: var(--ub-text-3);
}
.ub-search-foot[hidden] { display: none; }
.ub-search-foot-count { font-variant-numeric: tabular-nums; white-space: nowrap; }
.ub-search-foot-keys {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  white-space: nowrap;
}
.ub-search-foot-keys kbd {
  display: inline-block;
  min-width: 15px;
  padding: 0 3px;
  border: 1px solid var(--ub-border-2);
  border-radius: var(--ub-r-xs);
  background: var(--ub-surface-2);
  font-family: inherit;
  font-size: 10px;
  line-height: 15px;
  text-align: center;
  color: var(--ub-text-2);
}
.ub-search-foot-keys kbd + kbd { margin-left: -1px; }

/* --- 分类导航 --- */
/* 15 个分类在常规笔记本宽度下放不下，导航条横向滚动；
   两侧淡出仅在真正溢出时出现，避免内容被生硬截断。 */
.ub-catnav-wrap { position: relative; }

.ub-catnav {
  display: flex;
  align-items: stretch;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  border-top: 1px solid var(--ub-border);
  overscroll-behavior-x: contain;
}
.ub-catnav::-webkit-scrollbar { height: 0; display: none; }

.ub-catnav-wrap::before,
.ub-catnav-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 34px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .18s ease;
}
.ub-catnav-wrap::before {
  left: 0;
  background: linear-gradient(to right, var(--ub-surface) 18%, rgba(255, 255, 255, 0));
}
.ub-catnav-wrap::after {
  right: 0;
  background: linear-gradient(to left, var(--ub-surface) 18%, rgba(255, 255, 255, 0));
}
html.dark .ub-catnav-wrap::before { background: linear-gradient(to right, var(--ub-surface) 18%, rgba(17, 27, 44, 0)); }
html.dark .ub-catnav-wrap::after { background: linear-gradient(to left, var(--ub-surface) 18%, rgba(17, 27, 44, 0)); }

.ub-catnav-wrap.can-left::before { opacity: 1; }
.ub-catnav-wrap.can-right::after { opacity: 1; }

.ub-cat-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  /* 左右内距 10px → 8px → 7px：分类从 15 个加到 16 个后，英文标签（Calculator / Education）
     在 1100px 视口下会差 11px 排不下而误触发右侧淡出；收到 7px 后中英文都能一屏排开。 */
  padding: 9px 7px;
  font-size: 13px;
  color: var(--ub-text-2);
  white-space: nowrap;
  transition: color .15s ease;
}
.ub-cat-link i { font-size: 11px; color: var(--ub-text-3); transition: color .15s ease; }
.ub-cat-link:hover { color: var(--ub-text); }
.ub-cat-link:hover i { color: var(--ub-accent); }
.ub-cat-link.is-active { color: var(--ub-accent); font-weight: 600; }
.ub-cat-link.is-active i { color: var(--ub-accent); }
.ub-cat-link.is-active::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: -1px;
  height: 2px;
  background: var(--ub-accent);
  border-radius: 2px 2px 0 0;
}

/* --- 图标按钮 / 语言切换 --- */
.ub-icon-btn {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
  color: var(--ub-text-2);
  cursor: pointer;
  font-size: 13px;
  touch-action: manipulation;
  transition: color .15s ease, border-color .15s ease, background-color .15s ease;
}
.ub-icon-btn:hover { color: var(--ub-accent); border-color: var(--ub-border-2); }

.ub-lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
}
.ub-lang-btn {
  border: 0;
  background: transparent;
  color: var(--ub-text-3);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: var(--ub-r-sm);
  cursor: pointer;
  touch-action: manipulation;
  transition: color .15s ease, background-color .15s ease;
}
.ub-lang-btn:hover { color: var(--ub-text); }
.ub-lang-btn.is-active { background: var(--ub-accent); color: var(--ub-accent-fg); }

/* --------------------------------------------------------------------------
   4. 按钮
   -------------------------------------------------------------------------- */
.ub-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 13px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
  color: var(--ub-text);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  touch-action: manipulation;
  white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.ub-btn:hover { border-color: var(--ub-border-2); background: var(--ub-surface-2); }
.ub-btn:active { transform: translateY(.5px); }
.ub-btn:disabled { opacity: .8; cursor: not-allowed; transform: none; }
/* 禁用态不再保留蓝色/描边强调，改成中性底色，避免看起来还能点 */
.ub-btn-primary:disabled,
.ub-btn-soft:disabled,
.ub-btn-ghost:disabled {
  background: var(--ub-surface-3);
  color: var(--ub-text-3);
  border-color: var(--ub-border);
  box-shadow: none;
}

.ub-btn-primary {
  background: var(--ub-accent);
  border-color: var(--ub-accent);
  color: var(--ub-accent-fg);
  font-weight: 600;
}
.ub-btn-primary:hover { background: var(--ub-accent-hover); border-color: var(--ub-accent-hover); color: var(--ub-accent-fg); }

.ub-btn-soft { background: var(--ub-accent-soft); border-color: transparent; color: var(--ub-accent); }
.ub-btn-soft:hover { background: var(--ub-accent-soft); color: var(--ub-accent-hover); }

.ub-btn-ghost { background: transparent; border-color: transparent; color: var(--ub-text-2); }
.ub-btn-ghost:hover { background: var(--ub-surface-2); color: var(--ub-text); border-color: transparent; }

.ub-btn-danger { color: var(--ub-err); }
.ub-btn-danger:hover { border-color: var(--ub-err); background: var(--ub-err-soft); color: var(--ub-err); }

.ub-btn-sm { height: 28px; padding: 0 10px; font-size: 12.5px; }
.ub-btn-lg { height: 40px; padding: 0 18px; font-size: 14.5px; }
.ub-btn-block { width: 100%; }

/* --------------------------------------------------------------------------
   5. 工具列表 / 网格
   -------------------------------------------------------------------------- */
/* 分类页工具列表：通栏行。工具数量少时（如 1 个）也能撑满整行，
   数量多时每行一个、可读性好，且标题与简介同行不浪费横向空间。 */
.ub-tool-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ub-tool-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 10px 12px 14px;
  background: var(--ub-surface);
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r-lg);
  transition: border-color .15s ease, background-color .15s ease,
              box-shadow .18s ease, transform .18s ease;
}
.ub-tool-row:hover {
  border-color: var(--ub-border-2);
  background: var(--ub-surface-2);
  box-shadow: var(--ub-lift);
  transform: translateY(-1px);
}
/* 整行可点：链接用伪元素铺满，右侧星标按钮浮在它上面 */
.ub-tool-row-link {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}
.ub-tool-row-link::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.ub-tool-row-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: var(--ub-r);
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 13px;
  transition: background-color .15s ease, color .15s ease;
}
.ub-tool-row:hover .ub-tool-row-icon { background: var(--ub-accent); color: var(--ub-accent-fg); }
.ub-tool-row-body {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 10px;
}
.ub-tool-row-title {
  font-size: 14.5px;
  font-weight: 650;
  color: var(--ub-text);
  letter-spacing: -.005em;
}
.ub-tool-row-desc {
  font-size: 13px;
  color: var(--ub-text-2);
  line-height: 1.55;
  min-width: 0;
}
.ub-tool-row-arrow {
  flex-shrink: 0;
  font-size: 10px;
  color: var(--ub-text-3);
  opacity: 0;
  transform: translateX(-3px);
  transition: opacity .15s ease, transform .15s ease, color .15s ease;
}
.ub-tool-row:hover .ub-tool-row-arrow { opacity: 1; transform: translateX(0); color: var(--ub-accent); }
.ub-tool-row:focus-within .ub-tool-row-arrow { opacity: 1; color: var(--ub-accent); }

/* 收藏星标：默认弱化，悬停/已收藏时显形 */
.ub-fav-btn {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: var(--ub-r-sm);
  background: transparent;
  color: var(--ub-text-3);
  font-size: 13px;
  cursor: pointer;
  opacity: 0;
  transition: opacity .15s ease, color .15s ease, background-color .15s ease;
}
.ub-tool-row:hover .ub-fav-btn,
.ub-cat-tool:hover .ub-fav-btn,
.ub-fav-btn:focus-visible,
.ub-fav-btn.is-on { opacity: 1; }
.ub-fav-btn:hover { background: var(--ub-surface-3); color: var(--ub-accent); }
.ub-fav-btn.is-on { color: #e0932f; }
.ub-fav-btn.is-on:hover { color: #c97d18; }
@media (hover: none) {
  .ub-fav-btn { opacity: 1; }
}

/* 分类页空状态：宽面板 + 已上线工具入口。
   注意 width:100% 不能省 —— 面板是 flex 列容器的子项，
   只写 max-width + margin:auto 时 auto 外边距会吃掉 stretch，
   面板会塌成内容宽度的小方块（历史上就是这么坏的）。 */
.ub-empty-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: 30px 28px 26px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r-lg);
  background: var(--ub-surface);
}
.ub-empty-panel-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 4px;
  border-radius: 50%;
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 15px;
}
.ub-empty-panel-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ub-text);
}
.ub-empty-panel-hint {
  margin: 0;
  font-size: 13px;
  color: var(--ub-text-3);
}

/* 空状态的两个出口：回首页 / 直接用其他分类 */
.ub-empty-panel-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}

/* 空状态下半部分：已上线工具入口 */
.ub-empty-panel-alt {
  width: 100%;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--ub-border);
}
.ub-empty-panel-alt-label {
  display: block;
  margin-bottom: 10px;
  font-size: 12.5px;
  color: var(--ub-text-3);
}
.ub-empty-panel-alt-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
/* 面板是浅底，入口块用稍深一层的底色区分出来（深色模式同样成立） */
.ub-empty-panel-alt-list .ub-quick-link { background: var(--ub-surface-2); }

/* 分类页「其他分类」快捷入口：把空分类页变成可以继续浏览的入口 */
.ub-cat-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(196px, 1fr));
  gap: 8px;
}
.ub-cat-link-card {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 11px;
  background: var(--ub-surface);
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  transition: border-color .15s ease, background-color .15s ease,
              box-shadow .18s ease, transform .18s ease;
}
.ub-cat-link-card:hover {
  border-color: var(--ub-border-2);
  background: var(--ub-surface-2);
  box-shadow: var(--ub-lift);
  transform: translateY(-1px);
}
.ub-cat-link-card-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: var(--ub-r-sm);
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 11.5px;
}
.ub-cat-link-card-name {
  flex: 1;
  min-width: 0;
  font-size: 13px;
  color: var(--ub-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ub-cat-link-card-count {
  flex-shrink: 0;
  font-size: 11.5px;
  color: var(--ub-text-3);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* --- 分类目录卡片（首页） --- */
.ub-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
  gap: 10px;
}

/* --- 404 页面 --- */
.ub-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 640px;
  min-height: 62vh;
  margin: 0 auto;
  padding: 40px 24px;
  text-align: center;
}
.ub-404-code {
  margin: 0;
  font-size: 64px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ub-text-3);
  opacity: .5;
  font-variant-numeric: tabular-nums;
}
.ub-404 h1 {
  margin: 14px 0 0;
  font-size: 26px;
  letter-spacing: -.01em;
}
.ub-404-desc {
  max-width: 520px;
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ub-text-2);
}
.ub-404-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}
.ub-404-tools {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 32px;
}
.ub-404-tools-label {
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--ub-text-3);
}
.ub-404 .ub-quick-list { justify-content: center; }

.ub-cat-card {
  display: flex;
  flex-direction: column;
  padding: 14px 15px 11px;
  background: var(--ub-surface);
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r-lg);
  transition: border-color .15s ease, box-shadow .18s ease, transform .18s ease;
}
.ub-cat-card:hover {
  border-color: var(--ub-border-2);
  box-shadow: var(--ub-lift);
  transform: translateY(-1px);
}

.ub-cat-card-head { display: flex; align-items: center; gap: 9px; min-width: 0; }
.ub-cat-card-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: var(--ub-r);
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 12.5px;
  transition: background-color .15s ease, color .15s ease;
}
.ub-cat-card:hover .ub-cat-card-icon { background: var(--ub-accent); color: var(--ub-accent-fg); }
.ub-cat-card-titles {
  display: flex;
  align-items: baseline;
  gap: 7px;
  min-width: 0;
  flex-wrap: wrap;
}
.ub-cat-card-title {
  margin: 0;
  font-size: 14.5px;
  font-weight: 650;
  letter-spacing: -.005em;
}
.ub-cat-card-count {
  font-size: 12px;
  color: var(--ub-text-3);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.ub-cat-card-desc {
  margin: 8px 0 0;
  font-size: 12.5px;
  color: var(--ub-text-2);
  line-height: 1.6;
  /* 三行高度：英文简介比中文长，行数放宽后不再出现省略号截断 */
  min-height: 60px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   6. 首页头部区与分类目录
   -------------------------------------------------------------------------- */
/* 标题区：宽屏时左文右「信息条」，窄屏时信息条落到标题下方横向排列。 */
.ub-masthead { padding: 34px 0 6px; }
.ub-masthead-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
.ub-masthead-copy { max-width: 760px; }
.ub-masthead h1 {
  margin: 0;
  font-size: 27px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -.015em;
}
.ub-masthead p {
  margin: 10px 0 0;
  color: var(--ub-text-2);
  font-size: 14.5px;
  line-height: 1.68;
}

/* 眉标：H1 上方的一行轻量说明，交代「打开就能用」的体感 */
.ub-masthead .ub-masthead-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 12px;
  padding: 4px 12px 4px 10px;
  border: 1px solid var(--ub-border);
  border-radius: 999px;
  background: var(--ub-surface);
  color: var(--ub-text-2);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.55;
}
.ub-masthead .ub-masthead-eyebrow i { color: var(--ub-ok); font-size: 11.5px; }

/* 快速开始：已上线工具的直接入口 */
.ub-quick {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  min-width: 0;
}
.ub-quick-label {
  flex-shrink: 0;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ub-text-3);
  white-space: nowrap;
}
.ub-quick-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}
.ub-quick-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
  color: var(--ub-text);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: border-color .15s ease, color .15s ease, background-color .15s ease;
}
.ub-quick-link > i:first-child {
  font-size: 11.5px;
  color: var(--ub-text-3);
  transition: color .15s ease;
}
.ub-quick-link:hover {
  border-color: var(--ub-border-2);
  background: var(--ub-surface-2);
  color: var(--ub-accent);
}
.ub-quick-link:hover > i:first-child { color: var(--ub-accent); }
.ub-quick-arrow {
  font-size: 9px !important;
  opacity: .45;
  transition: opacity .15s ease;
}
.ub-quick-link:hover .ub-quick-arrow { opacity: 1; }

/* 信息条 */
.ub-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.ub-fact {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  padding: 9px 12px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
}
/* 图标做成淡色方章，比裸图标更整齐 */
.ub-fact > i {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: var(--ub-r-sm);
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 11px;
}
.ub-fact-note > i { background: var(--ub-ok-soft); color: var(--ub-ok); }
.ub-fact-label {
  font-size: 12.5px;
  color: var(--ub-text-3);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ub-fact-value {
  margin-left: auto;
  font-size: 13px;
  font-weight: 600;
  color: var(--ub-text);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.ub-section { padding: 26px 0 0; }
.ub-section-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 9px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--ub-border);
}
.ub-section-title { margin: 0; font-size: 15px; font-weight: 650; letter-spacing: -.005em; }
.ub-section-count { font-size: 12.5px; color: var(--ub-text-3); font-variant-numeric: tabular-nums; }
.ub-section-desc { margin: -4px 0 12px; font-size: 13px; color: var(--ub-text-3); }

/* --------------------------------------------------------------------------
   7. 面包屑 / 页面标题
   -------------------------------------------------------------------------- */
.ub-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 14px 0 0;
  font-size: 13px;
  color: var(--ub-text-3);
}
.ub-breadcrumb a:hover { color: var(--ub-accent); }
.ub-breadcrumb .ub-crumb-sep { font-size: 9px; opacity: .75; }
.ub-breadcrumb .ub-crumb-current { color: var(--ub-text-2); }

.ub-page-head { padding: 18px 0 16px; }
.ub-page-title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 6px;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: -.015em;
}
/* 标题图标与分类页、面板标题统一成「淡强调色方块」，避免同一页面出现两套图标语言 */
.ub-page-title i {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: var(--ub-r);
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 14px;
}
.ub-page-desc { margin: 0; max-width: 68ch; color: var(--ub-text-2); font-size: 14px; }
.ub-page-hint {
  display: flex;
  align-items: center;
  gap: 5px;
  margin: 8px 0 0;
  font-size: 12.5px;
  color: var(--ub-text-3);
}
.ub-page-hint span { margin-left: 2px; }

/* --------------------------------------------------------------------------
   8. 工具面板
   -------------------------------------------------------------------------- */
.ub-panel {
  display: flex;
  flex-direction: column;
  background: var(--ub-surface);
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r-lg);
  padding: 15px;
  margin-bottom: 14px;
}
.ub-panel > .ub-textarea { flex: 1 1 auto; }
/* 面板标题栏：统一最小高度，使左右两栏的标题与编辑区严格对齐
   （输入栏带下拉控件、输出栏不带时也不会错位）。 */
.ub-panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 28px;
  margin-bottom: 9px;
}
.ub-panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ub-text-2);
}
.ub-panel-title i {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: var(--ub-r-xs);
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 10px;
}
.ub-panel-title .ub-panel-hint { margin-left: auto; font-size: 12px; font-weight: 400; color: var(--ub-text-3); }
/* 面板标题栏右侧的表单控件（如缩进、分隔符） */
.ub-panel-tool { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; }
.ub-panel-tool .ub-sr-only { position: absolute; }
/* 面板底部操作区：左右两栏的操作按钮在这里底部对齐 */
.ub-panel-foot {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--ub-border);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.ub-panel-foot .ub-actions { margin-top: 0; }

.ub-tool-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 960px) {
  .ub-tool-grid { grid-template-columns: 1fr 1fr; }
  .ub-tool-grid.is-single { grid-template-columns: 1fr; }
}

.ub-field-group { display: flex; flex-direction: column; gap: 9px; min-width: 0; }

.ub-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ub-text-2);
}
.ub-label .ub-label-tip { margin-left: auto; font-weight: 400; font-size: 12px; color: var(--ub-text-3); }

.ub-textarea, .ub-input, .ub-select {
  width: 100%;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-field);
  color: var(--ub-text);
  font-family: inherit;
  font-size: 13.5px;
  line-height: 1.62;
  padding: 10px 11px;
  outline: 0;
  transition: border-color .15s ease, box-shadow .15s ease, background-color .15s ease;
  resize: vertical;
}
/* flex:1 让输入框吃掉面板剩余高度：
   双栏工具页左右面板等高时，文本框与底部按钮行才能对齐（否则右侧会留空档）。 */
.ub-textarea { min-height: 300px; flex: 1 1 auto; font-size: 13px; }
.ub-textarea.is-code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 12.5px;
  line-height: 1.65;
  white-space: pre;
  overflow-wrap: normal;
  overflow-x: auto;
}
.ub-textarea:focus, .ub-input:focus, .ub-select:focus {
  border-color: var(--ub-accent);
  box-shadow: 0 0 0 3px var(--ub-accent-soft);
  background: var(--ub-surface);
}
.ub-textarea::placeholder, .ub-input::placeholder { color: var(--ub-text-3); }
.ub-textarea[readonly] { background: var(--ub-surface-2); color: var(--ub-text); }
/* 只读的结果输入框用同样的一层底色，和右侧「结果」面板的语义保持一致 */
.ub-input[readonly] { background: var(--ub-surface-2); color: var(--ub-text); }

.ub-select {
  height: 32px;
  padding: 0 30px 0 10px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath fill='%23858c98' d='M2.5 4.5L6 8l3.5-3.5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 9px center;
  background-size: 11px;
  cursor: pointer;
}
.ub-select option { background: var(--ub-surface); color: var(--ub-text); }

/* 面板标题栏里的紧凑下拉。必须写在 .ub-select 之后：
   同权重下后写的规则才会生效，否则高度与内边距会被 .ub-select 覆盖。 */
.ub-select-sm {
  height: 28px;
  font-size: 12px;
  padding: 0 26px 0 8px;
  background-position: right 7px center;
}

.ub-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.ub-actions .ub-btn-spacer { flex: 1 1 auto; }

.ub-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}
.ub-check input { width: 14px; height: 14px; accent-color: var(--ub-accent); cursor: pointer; margin: 0; }

/* 面板信息条：输出侧是处理状态，输入侧是实时统计 / 选项开关。
   两侧共用同一套盒模型（同样的内外边距、字号、行高），高度才会严格相等——
   这是左右两个编辑区上下沿对齐的前提。 */
.ub-status,
.ub-panel-meta {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  margin: 11px 0 2px;
  padding: 7px 10px;
  border-radius: var(--ub-r);
  font-size: 12.5px;
  line-height: 1.55;
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  border: 1px solid var(--ub-border);
}
.ub-status.is-ok { background: var(--ub-ok-soft); color: var(--ub-ok); border-color: transparent; }
.ub-status.is-error { background: var(--ub-err-soft); color: var(--ub-err); border-color: transparent; }
.ub-status i { flex-shrink: 0; margin-top: 3px; font-size: 11px; }

/* 输入侧信息条：图标 + 统计，或若干开关 + 右侧统计 */
.ub-panel-meta { align-items: center; gap: 12px; flex-wrap: wrap; }
.ub-panel-meta i { flex-shrink: 0; font-size: 11px; }
.ub-panel-meta .ub-panel-meta-end { margin-left: auto; color: var(--ub-text-3); }

/* --------------------------------------------------------------------------
   9. 提示组件（成功绿 / 错误红）
   -------------------------------------------------------------------------- */
.ub-toast-wrap {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.ub-toast {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 380px;
  padding: 9px 12px;
  border-radius: var(--ub-r);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.55;
  border: 1px solid transparent;
  box-shadow: var(--ub-pop);
  animation: ub-toast-in .18s ease;
  pointer-events: auto;
  cursor: pointer;
}
.ub-toast.is-success { background: var(--ub-ok-soft); color: var(--ub-ok); border-color: var(--ub-ok); }
.ub-toast.is-error { background: var(--ub-err-soft); color: var(--ub-err); border-color: var(--ub-err); }
.ub-toast i { margin-top: 3px; font-size: 11px; }
.ub-toast.is-hide { animation: ub-toast-out .18s ease forwards; }

@keyframes ub-toast-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
@keyframes ub-toast-out { to { opacity: 0; transform: translateY(-6px); } }

/* --------------------------------------------------------------------------
   10. 本地运行提示 + 广告位
   -------------------------------------------------------------------------- */
.ub-privacy-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  margin: 14px 0;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font-size: 12.5px;
}
.ub-privacy-note i { color: var(--ub-ok); margin-top: 3px; font-size: 11px; }

/* 广告位：当前展示演示内容，正式投放时替换 .ub-ad-demo 内部素材即可。
   如需隐藏，给 .ub-ad 加上 hidden 类即可，不影响任何布局。 */
/* 广告位：不再用整片虚线框（看起来像坏掉的占位），改成正常卡片 + 左上角的小标签 */
.ub-ad {
  margin: 18px 0;
  border: 1px solid var(--ub-border);
  border-radius: 14px;
  background: var(--ub-surface);
  box-shadow: 0 1px 2px rgba(21, 40, 92, .04);
  overflow: hidden;
}
.ub-ad-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin: 12px 0 0 16px;
  padding: 2px 8px;
  border: 0;
  border-radius: 6px;
  background: var(--ub-surface-2);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--ub-text-3);
}
.ub-ad-demo {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
}
.ub-ad-demo-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ub-border-2);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
  color: var(--ub-text-3);
  font-size: 14px;
}
.ub-ad-demo-text { min-width: 0; }
.ub-ad-demo-title {
  margin: 0;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ub-text-2);
}
.ub-ad-demo-desc {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: var(--ub-text-3);
}

/* --------------------------------------------------------------------------
   11. 页脚
   -------------------------------------------------------------------------- */
.ub-footer {
  margin-top: 40px;
  border-top: 1px solid var(--ub-border);
  background: var(--ub-surface);
}
.ub-footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 2fr);
  gap: 40px;
  padding: 30px 0 22px;
}
.ub-footer-brand {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
  font-size: 13.5px;
}
.ub-footer-brand i { color: var(--ub-accent); }
.ub-footer-tagline {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--ub-text-2);
}
.ub-footer-note {
  margin: 10px 0 0;
  max-width: 54ch;
  color: var(--ub-text-3);
  font-size: 12.5px;
  line-height: 1.75;
}
.ub-footer-title {
  margin: 0 0 11px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ub-text-2);
  letter-spacing: .02em;
}
.ub-footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0 16px;
}
.ub-footer-links a {
  display: block;
  padding: 5px 0;
  font-size: 12.5px;
  color: var(--ub-text-3);
  transition: color .15s ease;
}
.ub-footer-links a:hover { color: var(--ub-accent); }
.ub-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 16px;
  padding: 14px 0 22px;
  border-top: 1px solid var(--ub-border);
}
.ub-footer-copy {
  margin: 0;
  color: var(--ub-text-3);
  font-size: 12px;
}
.ub-footer-end { display: flex; align-items: center; gap: 16px; }
.ub-footer-my {
  font-size: 12.5px;
  color: var(--ub-text-3);
  transition: color .15s ease;
}
.ub-footer-my:hover { color: var(--ub-accent); }
.ub-footer-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--ub-text-3);
  font-family: inherit;
  font-size: 12.5px;
  cursor: pointer;
  touch-action: manipulation;
  transition: color .15s ease;
}
.ub-footer-top:hover { color: var(--ub-accent); }
.ub-footer-top i { font-size: 10px; }

/* --------------------------------------------------------------------------
   11.5 我的工具箱（收藏夹）
   -------------------------------------------------------------------------- */
/* 工具页标题行：左侧标题，右侧「收藏此工具」按钮 */
.ub-page-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.ub-fav-self {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 6px 12px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
  color: var(--ub-text-2);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease, background-color .15s ease;
}
.ub-fav-self:hover { color: var(--ub-accent); border-color: var(--ub-border-2); background: var(--ub-surface-2); }
.ub-fav-self.is-on { color: #e0932f; border-color: #e8c48c; background: #fdf6ea; }
.ub-fav-self.is-on:hover { color: #c97d18; border-color: #e0932f; background: #fdf1dd; }
html.dark .ub-fav-self.is-on { color: #f0b45c; border-color: #6b5228; background: #241d10; }
html.dark .ub-fav-self.is-on:hover { color: #f7c879; border-color: #8a6a34; background: #2b2213; }

/* 顶部工具条：数量 + 分享链接 + 复制/清空 */
.ub-my-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 13px 15px;
  margin-bottom: 14px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r-lg);
  background: var(--ub-surface);
}
.ub-my-count {
  order: 1;
  flex: 1 1 auto;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ub-text-2);
  white-space: nowrap;
}
.ub-my-link {
  order: 3;
  flex: 1 1 100%;
  min-width: 0;
  padding: 7px 11px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface-2);
  color: var(--ub-text-3);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: border-color .15s ease, color .15s ease;
}
/* 没有收藏时这里不是链接，改成虚线占位，避免让人以为可以复制一个空链接 */
.ub-my-link.is-empty { border-style: dashed; color: var(--ub-text-2); }
.ub-my-actions { display: flex; gap: 8px; flex-shrink: 0; order: 2; }

/* 全部工具选择器 */
.ub-my-picker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.ub-my-tool {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 11px;
  text-align: left;
  font-family: inherit;
  background: var(--ub-surface);
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  color: var(--ub-text);
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.ub-my-tool:hover { border-color: var(--ub-border-2); background: var(--ub-surface-2); }
.ub-my-tool.is-on { border-color: var(--ub-accent); background: var(--ub-accent-soft); }
.ub-my-tool-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: var(--ub-r-sm);
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font-size: 12.5px;
}
.ub-my-tool.is-on .ub-my-tool-icon { background: var(--ub-accent); color: var(--ub-accent-fg); }
.ub-my-tool-body { flex: 1; min-width: 0; }
.ub-my-tool-name {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ub-my-tool-cat {
  display: block;
  font-size: 11.5px;
  color: var(--ub-text-3);
}
.ub-my-tool-state { flex-shrink: 0; font-size: 12.5px; color: var(--ub-text-3); }
.ub-my-tool.is-on .ub-my-tool-state { color: #e0932f; }
.ub-my-empty {
  grid-column: 1 / -1;
  padding: 20px 12px;
  text-align: center;
  color: var(--ub-text-3);
  font-size: 13px;
}

.ub-my-filter-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

/* 筛选输入 */
.ub-my-filter {
  width: 100%;
  max-width: 320px;
  height: 34px;
  padding: 0 11px 0 31px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-field) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='7' cy='7' r='4.6' fill='none' stroke='%23858c98' stroke-width='1.4'/%3E%3Cpath d='M10.6 10.6 14 14' stroke='%23858c98' stroke-width='1.4' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat 10px center / 13px 13px;
  color: var(--ub-text);
  font-family: inherit;
  font-size: 13px;
  outline: 0;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.ub-my-filter:focus { border-color: var(--ub-accent); box-shadow: 0 0 0 3px var(--ub-accent-soft); }
.ub-my-filter::placeholder { color: var(--ub-text-3); }

/* 头部收藏入口与角标 */
.ub-fav-link {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: var(--ub-r);
  background: transparent;
  color: var(--ub-text-2);
  font-size: 14px;
  transition: background-color .15s ease, color .15s ease;
}
.ub-fav-link:hover { background: var(--ub-surface-2); color: var(--ub-accent); }

/* Toast 中性样式（移出收藏等中性提示） */
.ub-toast.is-info { background: var(--ub-surface-2); color: var(--ub-text-2); border-color: var(--ub-border); }
.ub-toast.is-info i { color: var(--ub-text-3); }

/* --------------------------------------------------------------------------
   11.6 颜色转换器（设计工具）
   -------------------------------------------------------------------------- */
.ub-input.is-code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 12.5px;
  letter-spacing: .01em;
}

/* 面板头部的取色器 */
.ub-color-picker {
  width: 34px;
  height: 26px;
  padding: 2px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r-sm);
  background: var(--ub-surface);
  cursor: pointer;
}
.ub-color-picker::-webkit-color-swatch-wrapper { padding: 0; }
.ub-color-picker::-webkit-color-swatch { border: 0; border-radius: 3px; }

/* RGB / HSL 三宫格：数字只有 0–360，限宽避免输入框空得发慌 */
.ub-color-group { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.ub-color-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 84px));
  justify-content: start;
  gap: 8px;
}
.ub-color-field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.ub-color-field-label { font-size: 11.5px; color: var(--ub-text-3); }
.ub-color-field .ub-input { height: 32px; padding: 0 8px; font-size: 12.5px; text-align: center; }

/* 大色块预览 */
.ub-color-swatch {
  height: 96px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  margin-bottom: 14px;
  transition: background-color .12s linear;
}
.ub-color-swatch-text {
  padding: 3px 10px;
  border-radius: var(--ub-r-sm);
  background: rgba(255, 255, 255, .82);
  color: #15171c;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  letter-spacing: .04em;
}

/* 深浅梯度 */
.ub-color-palette {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: 8px;
}
.ub-color-chip {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
  cursor: pointer;
  font-family: inherit;
  transition: border-color .15s ease, background-color .15s ease;
}
.ub-color-chip:hover { border-color: var(--ub-border-2); background: var(--ub-surface-2); }
.ub-color-chip-box {
  height: 42px;
  border-radius: var(--ub-r-sm);
  border: 1px solid rgba(0, 0, 0, .08);
}
.ub-color-chip-hex {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11px;
  color: var(--ub-text-3);
  text-align: center;
}

/* 前景对比度：整块只有两行，拉通 1160px 会显得空；
   改成居中的双列卡片组，两行并排，块内留白比通栏均衡得多。 */
.ub-contrast {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 8px;
  max-width: 880px;
  margin: 0 auto;
}
.ub-contrast-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r);
  background: var(--ub-surface);
}
.ub-contrast-sample {
  flex-shrink: 0;
  width: 40px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ub-border);
  border-radius: var(--ub-r-sm);
  font-size: 14px;
  font-weight: 600;
}
.ub-contrast-name { flex: 1; min-width: 0; font-size: 13px; color: var(--ub-text-2); }
.ub-contrast-ratio {
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 600;
  color: var(--ub-text);
}
.ub-contrast-level {
  flex-shrink: 0;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
}
.ub-contrast-level.is-AAA { background: rgba(21, 127, 61, .12); color: var(--ub-ok); }
.ub-contrast-level.is-AA { background: rgba(47, 84, 217, .1); color: var(--ub-accent); }
.ub-contrast-level.is-fail { background: rgba(200, 62, 62, .1); color: var(--ub-err); }

/* --------------------------------------------------------------------------
   12. 响应式
   -------------------------------------------------------------------------- */
/* ≥1000px：标题区左右分栏，信息条收成一张整体卡片（发丝线分隔，不再是三块浮卡） */
@media (min-width: 1000px) {
  .ub-masthead-inner { grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; }
  .ub-facts {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    padding: 5px;
    border: 1px solid var(--ub-border);
    border-radius: var(--ub-r-lg);
    background: var(--ub-surface);
  }
  .ub-fact {
    border: 0;
    border-radius: 0;
    background: transparent;
    padding: 9px 8px;
  }
  .ub-fact + .ub-fact { border-top: 1px solid var(--ub-border); }
}

/* ≥1200px：标题放大一级，与更宽的画布匹配 */
@media (min-width: 1200px) {
  .ub-masthead h1 { font-size: 30px; }
  .ub-masthead { padding: 40px 0 6px; }
}

@media (max-width: 1100px) {
  .ub-container { padding: 0 20px; }
}

@media (max-width: 860px) {
  .ub-container { padding: 0 18px; }
  .ub-masthead { padding: 26px 0 4px; }
  .ub-masthead h1 { font-size: 23px; }
  .ub-page-title { font-size: 20px; }
  .ub-footer-grid { grid-template-columns: minmax(0, 1fr); gap: 22px; padding: 24px 0 18px; }
  .ub-footer-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* 信息条在窄屏下改为「说明一行 + 两个数据并排」，高度减半且不挤 */
@media (max-width: 800px) {
  .ub-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ub-fact-note { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  html { scroll-padding-top: 146px; }
  .ub-container { padding: 0 14px; }
  /* 头部压缩：隐藏品牌副标题（中文「优盒」/ 英文「Toolbox」）并收紧间距，
     让 Logo 与右侧操作区回到同一行，省下一整行的高度。 */
  .ub-header-row { height: auto; flex-wrap: wrap; gap: 8px; padding: 9px 0; }
  .ub-logo-sub { display: none; }
  .ub-header-actions { margin-left: auto; gap: 6px; }
  .ub-search { order: 3; flex-basis: 100%; max-width: none; margin: 0; }
  .ub-search .ub-kbd { display: none; }
  /* 窄屏放不下键盘提示（触屏本来也用不到），只保留结果数量 */
  .ub-search-foot-keys { display: none; }
  .ub-panel { padding: 12px; }
  .ub-textarea { min-height: 220px; }
  .ub-toast-wrap { left: 12px; right: 12px; top: 12px; }
  .ub-toast { max-width: 100%; }
  .ub-actions .ub-btn { flex: 1 1 auto; }
  /* 广告位压扁：改为横向排布，避免在移动端占掉两整行 */
  .ub-ad { margin: 14px 0; }
  .ub-ad-demo { flex-direction: row; align-items: center; gap: 10px; padding: 12px; }
  .ub-ad-demo-icon { width: 32px; height: 32px; font-size: 13px; }
  .ub-ad-demo-text { flex: 1 1 auto; width: auto; min-width: 0; }
  .ub-ad-demo-title { font-size: 13px; }
  .ub-ad-demo-desc { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .ub-footer-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ub-my-actions { width: 100%; order: 3; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ub-my-actions .ub-btn { flex: 1 1 auto; justify-content: center; }
  /* 按钮为奇数个时最后一个占满整行，避免孤零零一格 */
  .ub-my-actions .ub-btn:last-child:nth-child(odd) { grid-column: 1 / -1; }
  /* 窄屏顺序改为「数量 → 操作按钮」，四个按钮两行两列排布 */
  .ub-my-link { flex-basis: 100%; order: 2; }
  .ub-cat-card-desc { min-height: 0; }
  .ub-empty-panel { padding: 28px 16px; }
  .ub-404 { padding: 36px 6px 48px; }
  .ub-404-code { font-size: 52px; }
  .ub-404 h1 { font-size: 22px; }
  .ub-404-actions { width: 100%; }
  .ub-404-actions .ub-btn { flex: 1 1 auto; }
  .ub-cat-links { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  /* 窄屏优先保证分类名完整，工具数量在窄屏下让位 */
  .ub-cat-link-card-count { display: none; }
  .ub-tool-row { gap: 10px; padding: 11px 12px; }
  .ub-tool-row-body { gap: 2px; }
  .ub-tool-row-desc { flex-basis: 100%; }
  /* 移动端点击目标放大到接近 44px */
  .ub-icon-btn { width: 36px; height: 36px; }
  .ub-lang-btn { padding: 5px 8px; font-size: 12px; }
  .ub-cat-link { padding: 12px 10px; }
  .ub-btn { height: 38px; padding: 0 14px; }
  /* 快速开始：窄屏改为「标签在上、胶囊换行在下」，避免标签被两行胶囊拉到行中间 */
  .ub-quick { flex-direction: column; align-items: flex-start; gap: 8px; }
  .ub-quick-list {
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: 0;
  }
}

/* --------------------------------------------------------------------------
   13. 页面视觉强化（工作台方向）
   底纹、分类色相、分类页正文区块、工具页介绍/步骤/问答/相关工具
   -------------------------------------------------------------------------- */

/* 长正文的双语切换：两段文案都写在 HTML 里，只显示当前语言那一段 */
.ub-lang-en { display: none; }
html[lang="en"] .ub-lang-zh { display: none; }
html[lang="en"] .ub-lang-en { display: inline; }

/* 每个分类一个色相，只用在图标底色和小面积强调上；
   正文、边框仍走中性色，避免整站变成彩色卡片墙。 */
body[data-cat="text"], .ub-cat-card[data-cat="text"] { --cat-h: 222; }
body[data-cat="image"], .ub-cat-card[data-cat="image"] { --cat-h: 338; }
body[data-cat="design"], .ub-cat-card[data-cat="design"] { --cat-h: 266; }
body[data-cat="pdf"], .ub-cat-card[data-cat="pdf"] { --cat-h: 22; }
body[data-cat="file"], .ub-cat-card[data-cat="file"] { --cat-h: 38; }
body[data-cat="dev"], .ub-cat-card[data-cat="dev"] { --cat-h: 192; }
body[data-cat="calc"], .ub-cat-card[data-cat="calc"] { --cat-h: 164; }
body[data-cat="data"], .ub-cat-card[data-cat="data"] { --cat-h: 146; }
body[data-cat="work"], .ub-cat-card[data-cat="work"] { --cat-h: 232; }
body[data-cat="edu"], .ub-cat-card[data-cat="edu"] { --cat-h: 204; }
body[data-cat="life"], .ub-cat-card[data-cat="life"] { --cat-h: 10; }
body[data-cat="test"], .ub-cat-card[data-cat="test"] { --cat-h: 92; }
body[data-cat="audio"], .ub-cat-card[data-cat="audio"] { --cat-h: 282; }
body[data-cat="video"], .ub-cat-card[data-cat="video"] { --cat-h: 0; }
body[data-cat="fun"], .ub-cat-card[data-cat="fun"] { --cat-h: 46; }
body[data-cat="other"], .ub-cat-card[data-cat="other"] { --cat-h: 218; }

:root, html.dark {
  --cat-ink: hsl(var(--cat-h, 222) 64% 44%);
  --cat-tint: hsl(var(--cat-h, 222) 70% 95%);
}
html.dark {
  --cat-ink: hsl(var(--cat-h, 222) 62% 72%);
  --cat-tint: hsl(var(--cat-h, 222) 32% 18%);
}

/* 顶部导航：半透明 + 轻微模糊，滚动时才有存在感 */
.ub-header {
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
}

/* 首页标题区：点阵底纹 + 更大的字级，右侧信息条改成「规格牌」 */
.ub-masthead {
  position: relative;
  padding: 52px 0 44px;
  border-bottom: 1px solid var(--ub-border);
  background-color: var(--ub-surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20'%3E%3Ccircle cx='2' cy='2' r='1' fill='%23c6cfdf' fill-opacity='.5'/%3E%3C/svg%3E");
  background-size: 20px 20px;
}
html.dark .ub-masthead {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20'%3E%3Ccircle cx='2' cy='2' r='1' fill='%23323c4e' fill-opacity='.55'/%3E%3C/svg%3E");
}
.ub-masthead-inner { gap: 40px; align-items: start; }
.ub-masthead-copy { max-width: 680px; }
.ub-masthead h1 {
  font-size: 46px;
  line-height: 1.12;
  font-weight: 750;
  letter-spacing: -.038em;
}
.ub-masthead p {
  margin-top: 14px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
}
.ub-masthead .ub-masthead-eyebrow {
  margin-bottom: 16px;
  border-color: transparent;
  background: var(--ub-ok-soft);
  color: var(--ub-ok);
  font-weight: 600;
  letter-spacing: .01em;
}
.ub-masthead .ub-masthead-eyebrow i { color: var(--ub-ok); }
.ub-quick { margin-top: 22px; }
.ub-quick-label { font-size: 12px; letter-spacing: .02em; }
.ub-quick-link {
  height: 34px;
  padding: 0 11px;
  border-color: var(--ub-border-2);
  background: var(--ub-surface);
  box-shadow: 0 1px 2px rgba(16, 24, 40, .04);
}
.ub-quick-link:hover { border-color: var(--ub-accent); box-shadow: var(--ub-lift); }

/* 规格牌：竖排三行，数字用等宽字体，像设备铭牌 */
.ub-facts {
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--ub-border);
  border-radius: 12px;
  background: var(--ub-surface);
  box-shadow: var(--ub-card-shadow);
  overflow: hidden;
}
.ub-fact {
  padding: 14px 16px;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.ub-fact + .ub-fact { border-top: 1px solid var(--ub-border); }
.ub-fact > i {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  font-size: 12px;
}
.ub-fact-label { font-size: 12.5px; }
.ub-fact-value {
  font-family: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.02em;
}

/* 区块标题：加粗一点，数量用等宽数字 */
.ub-section { padding-top: 34px; }
.ub-section-head { padding-bottom: 11px; margin-bottom: 14px; }
.ub-section-title { font-size: 20px; font-weight: 730;
  letter-spacing: -.015em;
}
.ub-section-count {
  font-family: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  font-size: 11.5px;
}

/* 首页分类卡片：更大的留白、分类色图标、更明显的悬停 */
.ub-cat-grid { gap: 14px; }
.ub-cat-card {
  padding: 18px 18px 14px;
  border-radius: 12px;
  background: var(--ub-surface);
  box-shadow: 0 1px 2px rgba(16, 24, 40, .03);
}
.ub-cat-card:hover {
  border-color: var(--ub-border-2);
  box-shadow: var(--ub-card-shadow);
  transform: translateY(-2px);
}
.ub-cat-card-icon {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 9px;
  background: var(--cat-tint);
  color: var(--cat-ink);
  font-size: 15px;
}
.ub-cat-card-title { font-size: 15.5px; font-weight: 700; letter-spacing: -.01em; }
.ub-cat-card-count {
  font-family: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--ub-surface-2);
  color: var(--ub-text-3);
}
.ub-cat-card-desc { font-size: 13px; line-height: 1.72; }

/* 分类页头部：色块图标 + 底部一条分类色，作为整页的身份标记 */
.ub-cat-hero {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin: 6px 0 4px;
  padding: 28px 28px 26px;
  border: 1px solid var(--ub-border);
  border-radius: 14px;
  background-color: var(--ub-surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20'%3E%3Ccircle cx='2' cy='2' r='1' fill='%23c6cfdf' fill-opacity='.45'/%3E%3C/svg%3E");
  box-shadow: var(--ub-card-shadow);
  overflow: hidden;
}
html.dark .ub-cat-hero {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20'%3E%3Ccircle cx='2' cy='2' r='1' fill='%23323c4e' fill-opacity='.5'/%3E%3C/svg%3E");
}
/* 右上角放一枚淡化的分类字形，填住头部右侧的空白，同时强化分类身份 */
.ub-cat-hero-ghost {
  position: absolute;
  right: 26px;
  bottom: -22px;
  z-index: 0;
  color: hsl(var(--cat-h, 222) 66% 42%);
  opacity: .09;
  font-size: 118px;
  line-height: 1;
  pointer-events: none;
}
.ub-cat-hero-icon {
  flex: 0 0 auto;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--cat-tint);
  color: var(--cat-ink);
  font-size: 21px;
}
.ub-cat-hero-main { position: relative; z-index: 1; min-width: 0; }
@media (max-width: 900px) {
  .ub-cat-hero-ghost { display: none; }
}
.ub-cat-hero h1 {
  margin: 0;
  font-size: 30px;
  font-weight: 750;
  letter-spacing: -.028em;
}
.ub-cat-hero-desc {
  margin: 9px 0 0;
  max-width: 68ch;
  color: var(--ub-text-2);
  font-size: 14px;
  line-height: 1.75;
}
.ub-cat-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}
.ub-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--ub-border);
  border-radius: 999px;
  background: var(--ub-surface);
  color: var(--ub-text-2);
  font-size: 12px;
  line-height: 1.4;
  font-variant-numeric: tabular-nums;
}
.ub-chip i { color: var(--ub-text-3); font-size: 11px; }
.ub-cat-meta .ub-chip:first-child {
  border-color: hsl(var(--cat-h, 222) 78% 91%);
  background: hsl(var(--cat-h, 222) 78% 91%);
  color: hsl(var(--cat-h, 222) 64% 36%);
  font-family: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  font-weight: 600;
}
html.dark .ub-cat-meta .ub-chip:first-child {
  border-color: hsl(var(--cat-h, 222) 40% 22%);
  background: hsl(var(--cat-h, 222) 40% 22%);
  color: hsl(var(--cat-h, 222) 66% 78%);
}

/* 分类介绍 + 三个用途 */
.ub-about-intro {
  max-width: 74ch;
  margin: 0 0 18px;
  color: var(--ub-text-2);
  font-size: 14.5px;
  line-height: 1.85;
}
.ub-uses {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.ub-use {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 15px 16px;
  border: 1px solid var(--ub-border);
  border-radius: 11px;
  background: var(--ub-surface);
}
.ub-use-icon {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--cat-tint);
  color: var(--cat-ink);
  font-size: 13px;
}
.ub-use-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.ub-use-body strong { font-size: 13.5px; font-weight: 650; }
.ub-use-desc { color: var(--ub-text-3); font-size: 12.5px; line-height: 1.6; }
.ub-soon-note {
  margin: 14px 0 0;
  color: var(--ub-text-3);
  font-size: 12.5px;
  line-height: 1.7;
}

/* 常见问题：用 details 做手风琴，收起时也能看到问题全貌 */
.ub-faq {
  border: 1px solid var(--ub-border);
  border-radius: 12px;
  background: var(--ub-surface);
  overflow: hidden;
}
.ub-faq-item + .ub-faq-item { border-top: 1px solid var(--ub-border); }
.ub-faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  font-size: 14.5px;
  font-weight: 600;
  list-style: none;
  transition: background-color .15s ease;
}
.ub-faq-item summary::-webkit-details-marker { display: none; }
.ub-faq-item summary:hover { background: var(--ub-surface-2); }
.ub-faq-item summary i {
  flex: 0 0 auto;
  color: var(--ub-text-3);
  font-size: 11px;
  transition: transform .2s ease, color .2s ease;
}
.ub-faq-item[open] summary i { transform: rotate(45deg); color: var(--ub-accent); }
.ub-faq-body {
  max-width: 74ch;
  padding: 0 20px 18px;
  color: var(--ub-text-2);
  font-size: 13.8px;
  line-height: 1.8;
}

/* 工具页正文：介绍两栏、步骤、问答、相关工具 */
.ub-tool-detail { margin-top: 10px; }
.ub-tool-intro { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 22px; align-items: start; }
.ub-tool-intro p {
  max-width: 70ch;
  margin: 0 0 12px;
  color: var(--ub-text-2);
  font-size: 14px;
  line-height: 1.85;
}
.ub-tool-intro p:last-child { margin-bottom: 0; }
.ub-feature-list {
  margin: 0;
  padding: 16px 18px;
  list-style: none;
  border: 1px solid var(--ub-border);
  border-radius: 12px;
  background: var(--ub-surface);
}
.ub-feature-list li {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 0;
  font-size: 13px;
  color: var(--ub-text-2);
}
.ub-feature-list li + li { border-top: 1px solid var(--ub-border); }
.ub-feature-list i { color: var(--ub-ok); font-size: 11.5px; }

.ub-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  counter-reset: ub-step;
  margin: 0;
  padding: 0;
  list-style: none;
}
.ub-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--ub-border);
  border-radius: 11px;
  background: var(--ub-surface);
}
.ub-step::before {
  counter-increment: ub-step;
  content: "0" counter(ub-step);
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-family: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
}
.ub-step span { font-size: 13.5px; line-height: 1.7; color: var(--ub-text-2); }

.ub-related {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: 900px;
}
.ub-related-card {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 16px 18px;
  border: 1px solid var(--ub-border);
  border-radius: 12px;
  background: var(--ub-surface);
  transition: border-color .15s ease, box-shadow .18s ease, transform .18s ease;
}
.ub-related-card:hover {
  border-color: var(--ub-border-2);
  box-shadow: var(--ub-card-shadow);
  transform: translateY(-1px);
}
.ub-related-icon {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 14px;
}
.ub-related-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.ub-related-name { font-size: 14px; font-weight: 650; }
.ub-related-desc {
  color: var(--ub-text-3);
  font-size: 12.5px;
  line-height: 1.55;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ub-related-card i.ub-related-arrow { margin-left: auto; color: var(--ub-text-3); font-size: 10px; }

/* 分类工具列表 / 收藏列表：4 列卡片栅格，窄屏逐级降列 */
.ub-tool-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.ub-tool-list .ub-empty-panel { grid-column: 1 / -1; }
.ub-tool-row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 120px;
  padding: 14px 14px 20px;
}
.ub-tool-row-link {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 10px;
  row-gap: 4px;
  align-items: start;
  padding-right: 14px;
}
.ub-tool-row-icon { grid-column: 1; grid-row: 1; width: 34px; height: 34px; font-size: 14px; }
.ub-tool-row-body { grid-column: 2; grid-row: 1 / span 2; flex-direction: column; align-items: flex-start; gap: 5px; width: 100%; }
.ub-tool-row-title { font-size: 14px; }
.ub-tool-row-desc {
  font-size: 12.5px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ub-tool-row-arrow { position: absolute; right: 14px; bottom: 12px; opacity: .4; transform: none; }
.ub-fav-btn { position: absolute; top: 8px; right: 8px; }
@media (max-width: 1100px) {
  .ub-tool-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 820px) {
  .ub-tool-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 520px) {
  .ub-tool-list { grid-template-columns: minmax(0, 1fr); }
}

/* 相关工具：同样用卡片，不再是一条横向长条 */
.ub-related {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: none;
}
.ub-related-card {
  position: relative;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  min-height: 132px;
  padding: 16px 16px 14px;
}
.ub-related-body { width: 100%; }
.ub-related-desc {
  white-space: normal;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.ub-related-card i.ub-related-arrow { position: absolute; right: 14px; bottom: 13px; }

/* 我的工具箱：添加工具的入口也用卡片，不再是窄长条 */
.ub-my-tool {
  position: relative;
  flex-direction: column;
  align-items: flex-start;
  gap: 9px;
  min-height: 108px;
  padding: 14px 14px 13px;
}
.ub-my-tool-icon { width: 34px; height: 34px; font-size: 14px; }
.ub-my-tool-body { width: 100%; }
.ub-my-tool-name { font-size: 14px; }
.ub-my-tool-state { position: absolute; top: 12px; right: 12px; }

/* 工具页面板与页面标题：卡片化，主操作区更突出 */
.ub-panel {
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, .03);
}
.ub-page-head { padding: 20px 0 18px; }
.ub-page-title { font-size: 26px; letter-spacing: -.025em; }
.ub-page-title i { width: 36px; height: 36px; font-size: 16px; border-radius: 9px; }

/* 桌面：标题区信息条固定在右列，正文可读行长更稳 */
@media (min-width: 1024px) {
  .ub-masthead-inner { grid-template-columns: minmax(0, 1fr) 300px; }
}
@media (max-width: 1023px) {
  .ub-masthead { padding: 40px 0 32px; }
  .ub-masthead h1 { font-size: 38px; }
}
@media (max-width: 800px) {
  .ub-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    border: 0;
    box-shadow: none;
    background: transparent;
    overflow: visible;
  }
  .ub-fact {
    padding: 10px 12px;
    border: 1px solid var(--ub-border);
    border-radius: 9px;
    background: var(--ub-surface);
  }
  .ub-fact + .ub-fact { border-top: 1px solid var(--ub-border); }
  .ub-fact-note { grid-column: 1 / -1; }
  .ub-fact-value { font-size: 16px; }
}
@media (max-width: 760px) {
  .ub-tool-intro { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .ub-steps { grid-template-columns: minmax(0, 1fr); }
  .ub-related { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .ub-masthead { padding: 28px 0 26px; }
  .ub-masthead h1 { font-size: 29px; letter-spacing: -.028em; }
  .ub-masthead p { font-size: 14px; margin-top: 11px; }
  .ub-masthead .ub-masthead-eyebrow { margin-bottom: 13px; font-size: 12px; }
  .ub-cat-hero { flex-direction: column; gap: 14px; padding: 20px 18px 18px; }
  .ub-cat-hero-icon { width: 44px; height: 44px; font-size: 18px; }
  .ub-cat-hero h1 { font-size: 24px; }
  .ub-cat-hero-desc { font-size: 13.5px; }
  .ub-uses { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .ub-use { padding: 13px 14px; }
  .ub-faq-item summary { padding: 14px 15px; font-size: 14px; }
  .ub-faq-body { padding: 0 15px 15px; }
  .ub-section { padding-top: 26px; }
  .ub-section-title { font-size: 16px; }
  /* 窄屏广告位：文案占满剩余宽度，按钮换到下一行，避免文字被压成三行 */
  .ub-ad-demo { flex-wrap: wrap; row-gap: 10px; padding: 14px 14px 15px; }
  .ub-ad-demo-text { flex: 1 1 calc(100% - 52px); }
}
@media (max-width: 900px) {
  .ub-my-picker { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .ub-my-picker { grid-template-columns: minmax(0, 1fr); }
}

/* --------------------------------------------------------------------------
   14. 色彩分层：加深画布、强化卡片边界、把分类色带进界面
   ------------------------------------------------------------------------- */
:root {
  --ub-bg: #e4ebfa;
  --ub-surface: #ffffff;
  --ub-surface-2: #f3f7ff;
  --ub-surface-3: #e4ecfb;
  --ub-field: #ffffff;
  --ub-border: #d5dff3;
  --ub-border-2: #b8c6e2;

  --ub-text: #0a1324;
  --ub-text-2: #43506b;
  --ub-text-3: #5f6b84;

  --ub-accent: #3b57e8;
  --ub-accent-hover: #2a43cc;
  --ub-accent-soft: #e7edff;

  --ub-pop: 0 18px 40px -16px rgba(21, 40, 92, .35), 0 2px 8px -2px rgba(21, 40, 92, .12);
  --ub-lift: 0 16px 34px -22px rgba(21, 40, 92, .5), 0 1px 2px -1px rgba(21, 40, 92, .08);
  --ub-card-shadow: 0 2px 4px rgba(21, 40, 92, .05), 0 24px 48px -32px rgba(21, 40, 92, .55);
  --ub-header-bg: rgba(250, 252, 255, .92);
}
html.dark {
  --ub-bg: #05080f;
  --ub-surface: #111b2c;
  --ub-surface-2: #16223a;
  --ub-surface-3: #1d2b45;
  --ub-field: #0e1727;
  --ub-border: #26354f;
  --ub-border-2: #3a4f74;

  --ub-text: #eef2fb;
  --ub-text-2: #a8b3c8;
  --ub-text-3: #76839c;

  --ub-accent: #7f9dff;
  --ub-accent-hover: #a3b8ff;
  --ub-accent-soft: #16203a;

  --ub-card-shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 24px 48px -32px rgba(0, 0, 0, .85);
  --ub-header-bg: rgba(9, 13, 21, .93);
}

/* 分类色的派生值再提一档饱和度，让图标、标签真正“有色” */
:root {
  --cat-ink: hsl(var(--cat-h, 222) 68% 42%);
  --cat-tint: hsl(var(--cat-h, 222) 82% 93%);
}
html.dark {
  --cat-ink: hsl(var(--cat-h, 222) 66% 74%);
  --cat-tint: hsl(var(--cat-h, 222) 42% 19%);
}

/* 首页标题区换成极浅的蓝调，和深一层的画布一起把白卡片托起来 */
.ub-masthead { background-color: #f4f8ff; }
html.dark .ub-masthead { background-color: #0c1322; }

/* 规格牌：数字用强调色，信息更像仪表读数 */
.ub-fact-label { color: var(--ub-text-2); }
.ub-fact-value { color: var(--ub-accent); }
html.dark .ub-fact-value { color: var(--ub-accent); }

/* 分类卡片：过去是一整片白卡，现在每张卡带一点自己的浅色底，
   白卡只在悬停时出现，让 16 个分类在首页先有颜色分区
 */
.ub-cat-card {
  background: hsl(var(--cat-h) 62% 97.6%);
  border-color: hsl(var(--cat-h) 44% 91%);
}
.ub-cat-card:hover {
  background: #ffffff;
  border-color: hsl(var(--cat-h) 62% 74%);
  box-shadow: 0 18px 36px -24px hsl(var(--cat-h) 60% 42% / .45);
}
html.dark .ub-cat-card {
  background: hsl(var(--cat-h) 24% 12%);
  border-color: hsl(var(--cat-h) 22% 20%);
}
html.dark .ub-cat-card:hover {
  background: var(--ub-surface);
  border-color: hsl(var(--cat-h) 34% 34%);
}
.ub-cat-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: hsl(var(--cat-h) 78% 92%);
  color: hsl(var(--cat-h) 64% 38%);
  font-size: 16px;
  box-shadow: inset 0 0 0 1px hsl(var(--cat-h) 60% 86%);
}
.ub-cat-card:hover .ub-cat-card-icon {
  background: hsl(var(--cat-h) 64% 46%);
  color: #fff;
  box-shadow: none;
}
.ub-cat-card-count {
  padding: 0;
  background: none;
  color: hsl(var(--cat-h) 56% 34%);
  font-weight: 600;
}
html.dark .ub-cat-card-icon {
  background: hsl(var(--cat-h) 40% 20%);
  color: hsl(var(--cat-h) 70% 78%);
  box-shadow: inset 0 0 0 1px hsl(var(--cat-h) 36% 28%);
}
html.dark .ub-cat-card:hover .ub-cat-card-icon {
  background: hsl(var(--cat-h) 50% 34%);
  color: #fff;
}
html.dark .ub-cat-card-count {
  background: none;
  color: hsl(var(--cat-h) 62% 78%);
}
html.dark .ub-cat-empty {
  background: #2a1f10;
  color: #f0bb72;
  border-color: #46351b;
}
html.dark .ub-cat-empty::before { background: #e0a34a; }

/* 分类页头部：整块带上分类色的浅底，图标改为实色块，页面的“身份”更明确 */
.ub-cat-hero {
  background-color: hsl(var(--cat-h) 64% 97.5%);
  border-color: hsl(var(--cat-h) 44% 86%);
}
html.dark .ub-cat-hero {
  background-color: hsl(var(--cat-h) 30% 13%);
  border-color: hsl(var(--cat-h) 26% 24%);
}
.ub-cat-hero-icon {
  width: 56px;
  height: 56px;
  border-radius: 13px;
  background: hsl(var(--cat-h) 62% 47%);
  color: #fff;
  font-size: 22px;
  box-shadow: 0 12px 26px -14px hsl(var(--cat-h) 62% 38% / .9);
}
html.dark .ub-cat-hero-icon {
  background: hsl(var(--cat-h) 54% 38%);
  color: #fff;
  box-shadow: none;
}
.ub-cat-hero-ghost { opacity: .14; }
.ub-cat-hero .ub-chip {
  background: #ffffff;
  border-color: hsl(var(--cat-h) 48% 86%);
  color: hsl(var(--cat-h) 52% 32%);
}
html.dark .ub-cat-hero .ub-chip {
  background: hsl(var(--cat-h) 26% 17%);
  border-color: hsl(var(--cat-h) 26% 30%);
  color: hsl(var(--cat-h) 60% 82%);
}

/* 区块数量标签：只上色，不铺底色，避免变成一条色带 */
.ub-section-count {
  padding: 0;
  background: none;
  color: var(--ub-accent);
  font-weight: 600;
}
html.dark .ub-section-count { color: var(--ub-accent); }

/* 工具卡片与相关工具：图标用分类色的浅底，卡片边缘更清晰 */
.ub-tool-row { border-color: var(--ub-border); box-shadow: 0 1px 2px rgba(21, 40, 92, .04); }
.ub-tool-row:hover {
  border-color: hsl(var(--cat-h) 56% 78%);
  box-shadow: 0 16px 32px -24px hsl(var(--cat-h) 60% 42% / .4);
}
.ub-tool-row-icon {
  background: hsl(var(--cat-h) 78% 93%);
  color: hsl(var(--cat-h) 62% 40%);
}
.ub-tool-row:hover .ub-tool-row-icon {
  background: hsl(var(--cat-h) 64% 46%);
  color: #fff;
}
html.dark .ub-tool-row-icon {
  background: hsl(var(--cat-h) 40% 20%);
  color: hsl(var(--cat-h) 68% 78%);
}
html.dark .ub-tool-row:hover .ub-tool-row-icon {
  background: hsl(var(--cat-h) 50% 34%);
  color: #fff;
}

/* 分类页的用途卡片、步骤序号：借用同一个色相，页面内色彩成体系
   （这里直接用 hsl() 而不是 --cat-tint：变量在 :root 里就被替换成默认色相了，
    按分类变化的 --cat-h 传不进去，会让所有页面的图标都变成同一种蓝） */
.ub-use-icon, .ub-related-icon {
  background: hsl(var(--cat-h, 222) 80% 93%);
  color: hsl(var(--cat-h, 222) 66% 40%);
}
.ub-step::before, .ub-steps { color: hsl(var(--cat-h, 222) 66% 40%); }
html.dark .ub-use-icon, html.dark .ub-related-icon {
  background: hsl(var(--cat-h, 222) 40% 20%);
  color: hsl(var(--cat-h, 222) 66% 78%);
}
html.dark .ub-step::before, html.dark .ub-steps { color: hsl(var(--cat-h, 222) 66% 78%); }

/* 顶部分类导航：每个分类的图标带上自己的色相，整条导航不再是一片灰 */
.ub-catnav .ub-cat-link:nth-child(1) i { color: hsl(222 62% 54%); }
.ub-catnav .ub-cat-link:nth-child(2) i { color: hsl(338 58% 54%); }
.ub-catnav .ub-cat-link:nth-child(3) i { color: hsl(266 55% 56%); }
.ub-catnav .ub-cat-link:nth-child(4) i { color: hsl(22 72% 46%); }
.ub-catnav .ub-cat-link:nth-child(5) i { color: hsl(38 70% 44%); }
.ub-catnav .ub-cat-link:nth-child(6) i { color: hsl(192 66% 38%); }
.ub-catnav .ub-cat-link:nth-child(7) i { color: hsl(164 58% 36%); }
.ub-catnav .ub-cat-link:nth-child(8) i { color: hsl(146 54% 36%); }
.ub-catnav .ub-cat-link:nth-child(9) i { color: hsl(232 58% 56%); }
.ub-catnav .ub-cat-link:nth-child(10) i { color: hsl(204 64% 44%); }
.ub-catnav .ub-cat-link:nth-child(11) i { color: hsl(10 66% 50%); }
.ub-catnav .ub-cat-link:nth-child(12) i { color: hsl(92 52% 36%); }
.ub-catnav .ub-cat-link:nth-child(13) i { color: hsl(282 50% 54%); }
.ub-catnav .ub-cat-link:nth-child(14) i { color: hsl(0 62% 52%); }
.ub-catnav .ub-cat-link:nth-child(15) i { color: hsl(46 78% 42%); }
.ub-catnav .ub-cat-link:nth-child(16) i { color: hsl(218 30% 52%); }
.ub-catnav .ub-cat-link.is-active i { color: var(--ub-accent); }
html.dark .ub-catnav .ub-cat-link:nth-child(4) i,
html.dark .ub-catnav .ub-cat-link:nth-child(5) i,
html.dark .ub-catnav .ub-cat-link:nth-child(12) i,
html.dark .ub-catnav .ub-cat-link:nth-child(15) i { color: hsl(38 70% 66%); }


/* 页脚：和画布区分开的浅色底，收起页面 */
.ub-footer { background: #f6f9ff; border-top-color: var(--ub-border); }

/* --------------------------------------------------------------------------
   15. 精细度打磨：圆角、焦点、悬停、排印细节
   ------------------------------------------------------------------------- */
/* 排印：标题避免末行孤字，正文避免行尾孤字，数字统一等宽 */
h1, h2, h3, .ub-section-title, .ub-masthead h1 { text-wrap: balance; }
p { text-wrap: pretty; }
.ub-fact-value, .ub-cat-card-count, .ub-section-count, .ub-panel-hint { font-variant-numeric: tabular-nums; }

/* 卡片圆角统一，悬停位移更轻，整体更“整” */
.ub-cat-card { border-radius: 14px; }
.ub-cat-card:hover { transform: translateY(-3px); }
.ub-tool-row { border-radius: 14px; }
.ub-tool-row:hover { transform: translateY(-2px); }
.ub-panel { border-radius: 14px; }
.ub-faq { border-radius: 14px; }
.ub-empty-panel, .ub-related-card, .ub-feature-list { border-radius: 14px; }

/* 卡片顶部 1px 内高光：让白卡在浅底上有实体感（用阴影实现，不是描边装饰） */
.ub-panel, .ub-faq, .ub-cat-card, .ub-tool-row, .ub-related-card, .ub-feature-list {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .65), 0 1px 2px rgba(21, 40, 92, .05);
}
html.dark .ub-panel, html.dark .ub-faq, html.dark .ub-cat-card,
html.dark .ub-tool-row, html.dark .ub-related-card, html.dark .ub-feature-list {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .05), 0 1px 2px rgba(0, 0, 0, .45);
}

/* 输入控件：聚焦时用一圈柔和强调色，替代默认 outline */
.ub-textarea:focus, .ub-input:focus, .ub-select:focus {
  border-color: var(--ub-accent);
  box-shadow: 0 0 0 3px var(--ub-accent-soft);
}
.ub-input::placeholder, .ub-textarea::placeholder { color: var(--ub-text-3); }

/* 主按钮：带一点承重感，悬停轻抬 */
.ub-btn-primary {
  box-shadow: 0 8px 18px -14px rgba(59, 87, 232, .75), inset 0 1px 0 rgba(255, 255, 255, .18);
}
.ub-btn-primary:hover { transform: translateY(-1px); }
.ub-btn-primary:active { transform: translateY(0); }

/* 面板标题：从次级灰提到正文色，层级更清楚 */
.ub-panel-title { color: var(--ub-text); font-weight: 650; }

/* 问答：悬停用极浅强调色，展开时保持浅底，阅读路径更明确 */
.ub-faq-item summary:hover { background: var(--ub-accent-soft); }
.ub-faq-item[open] summary { background: var(--ub-surface-2); }

/* 工具页标题图标跟随分类色，和分类页、首页保持同一套颜色语言 */
.ub-page-title i {
  background: hsl(var(--cat-h, 222) 80% 93%);
  color: hsl(var(--cat-h, 222) 66% 40%);
}
html.dark .ub-page-title i {
  background: hsl(var(--cat-h, 222) 40% 20%);
  color: hsl(var(--cat-h, 222) 66% 78%);
}

/* 规格牌：数字与标签的对齐更紧，读数感更强 */
.ub-fact { align-items: center; }
.ub-fact-label { letter-spacing: .01em; }

/* 面板标题图标：跟随当前分类色，工具页内部也有一条统一的颜色线索 */
.ub-panel-title i {
  background: hsl(var(--cat-h, 222) 80% 93%);
  color: hsl(var(--cat-h, 222) 66% 40%);
}
html.dark .ub-panel-title i {
  background: hsl(var(--cat-h, 222) 40% 20%);
  color: hsl(var(--cat-h, 222) 66% 78%);
}

/* 空态图标同样用当前分类的色相，避免在橙色页面上跳出一个蓝圈 */
.ub-empty-panel-icon {
  background: hsl(var(--cat-h, 222) 80% 93%);
  color: hsl(var(--cat-h, 222) 66% 40%);
}
html.dark .ub-empty-panel-icon {
  background: hsl(var(--cat-h, 222) 40% 20%);
  color: hsl(var(--cat-h, 222) 66% 78%);
}

/* 快捷入口：悬停轻抬，和卡片同一套手感 */
.ub-quick-link { transition: border-color .15s ease, box-shadow .2s ease, transform .15s ease; }
.ub-quick-link:hover { transform: translateY(-1px); }

/* 广告位：演示态也做得像一块正式模块，而不是灰色虚线空盒 */
.ub-ad {
  border-radius: 14px;
  border-color: var(--ub-border-2);
  background: rgba(255, 255, 255, .72);
}
html.dark .ub-ad { background: rgba(255, 255, 255, .02); }
.ub-ad-label { border-color: var(--ub-border); color: var(--ub-text-3); }
.ub-ad-demo-icon { background: var(--ub-accent-soft); color: var(--ub-accent); }

/* 首页快捷入口：三个工具各自带一点分类色，图标不再统一是蓝 */
.ub-quick-link:nth-of-type(1) i { color: hsl(222 62% 46%); }
.ub-quick-link:nth-of-type(2) i { color: hsl(146 52% 34%); }
.ub-quick-link:nth-of-type(3) i { color: hsl(266 52% 50%); }

/* 相关工具：竖版卡片，和分类页工具卡同一套读法，不再是一条横卡 */
.ub-related-card {
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  min-height: 116px;
  padding: 16px;
  position: relative;
  border-radius: 14px;
}
.ub-related-icon { width: 36px; height: 36px; font-size: 14px; }
.ub-related-body { gap: 4px; width: 100%; }
.ub-related-desc {
  white-space: normal;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.ub-related-card i.ub-related-arrow {
  position: absolute;
  right: 14px;
  bottom: 12px;
  margin-left: 0;
  opacity: .4;
  font-size: 11px;
}

/* 使用说明：编号做成色块徽章，卡片加高，读起来更像步骤而不是一行文字 */
.ub-step {
  padding: 16px 18px;
  min-height: 78px;
  border-radius: 12px;
}
.ub-step::before {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: hsl(var(--cat-h, 222) 80% 93%);
  color: hsl(var(--cat-h, 222) 66% 38%);
  font-size: 11.5px;
}
html.dark .ub-step::before {
  background: hsl(var(--cat-h, 222) 40% 20%);
  color: hsl(var(--cat-h, 222) 66% 78%);
}

/* 页脚链接悬停：从次级色提到强调色 */
.ub-footer a { transition: color .15s ease; }
.ub-footer a:hover { color: var(--ub-accent); }
html.dark .ub-footer { background: #0c1322; }


/* --------------------------------------------------------------------------
   16. 减少动画偏好
   ------------------------------------------------------------------------- */
/* 分类页与工具页重点区块重做 */

/* 「这个分类能做什么」整块做成一张带分类色的内容面板：
   标题、引言、三个用途都收进同一个模块里，白卡片在色底上形成清楚的层次，
   而不是一段裸文字 + 三张各自为战的白卡 */
.ub-about {
  margin-top: 28px;
  padding: 18px 22px 22px;
  border: 1px solid var(--ub-border);
  border-radius: 18px;
  background: var(--ub-surface);
  box-shadow: 0 1px 2px rgba(21, 40, 92, .04);
}
html.dark .ub-about {
  border-color: var(--ub-border);
  background: var(--ub-surface);
}
.ub-about .ub-section-head { padding-bottom: 10px; margin-bottom: 12px; border-bottom: 0; }
.ub-about .ub-section-title { font-size: 19px; }

/* 引言：面板内的引导段，不再单独套一层浅色盒子 */
.ub-about-intro {
  max-width: 78ch;
  margin: 0 0 18px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ub-text-2);
  font-size: 14.5px;
  line-height: 1.9;
}

/* 三个用途：竖版白卡片，浮在色底上 */
.ub-use {
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  min-height: 132px;
  padding: 17px 18px;
  border-radius: 14px;
  background: hsl(var(--cat-h, 222) 74% 95.6%);
  border-color: hsl(var(--cat-h, 222) 52% 88%);
  box-shadow: none;
  transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease, background-color .2s ease;
}
.ub-use:hover {
  background: var(--ub-surface);
  border-color: hsl(var(--cat-h, 222) 58% 78%);
  box-shadow: 0 18px 34px -26px hsl(var(--cat-h, 222) 60% 40% / .45);
}
html.dark .ub-use {
  background: hsl(var(--cat-h, 222) 34% 19%);
  border-color: hsl(var(--cat-h, 222) 28% 26%);
}
html.dark .ub-use:hover { background: var(--ub-surface-2); }

/* 用途卡里的图标：色卡上用白色小方块托住，颜色不糊在一起 */
.ub-use-icon {
  background: #ffffff;
  color: hsl(var(--cat-h, 222) 62% 38%);
  box-shadow: inset 0 0 0 1px hsl(var(--cat-h, 222) 50% 86%);
}
.ub-use:hover .ub-use-icon {
  background: hsl(var(--cat-h, 222) 74% 95.6%);
  box-shadow: none;
}
html.dark .ub-use-icon {
  background: rgba(255, 255, 255, .06);
  color: hsl(var(--cat-h, 222) 66% 80%);
  box-shadow: inset 0 0 0 1px hsl(var(--cat-h, 222) 30% 30%);
}
html.dark .ub-use:hover .ub-use-icon { background: rgba(255, 255, 255, .1); }
.ub-use:hover {
  transform: translateY(-3px);
  border-color: hsl(var(--cat-h, 222) 58% 80%);
  box-shadow: 0 18px 34px -26px hsl(var(--cat-h, 222) 60% 40% / .45);
}
.ub-use-icon { width: 38px; height: 38px; border-radius: 11px; font-size: 15px; }
.ub-use-body { gap: 5px; width: 100%; }
.ub-use-body strong { font-size: 14.5px; letter-spacing: -.005em; }
.ub-use-desc { font-size: 13px; line-height: 1.72; color: var(--ub-text-3); }

/* 工具介绍右侧能力清单：换成分类色浅底 */
.ub-feature-list {
  border-color: hsl(var(--cat-h, 222) 48% 90%);
  background: hsl(var(--cat-h, 222) 70% 97.5%);
}
.ub-feature-list li i { color: hsl(var(--cat-h, 222) 58% 40%); }
.ub-feature-list li + li { border-color: hsl(var(--cat-h, 222) 40% 90%); }
html.dark .ub-feature-list {
  border-color: hsl(var(--cat-h, 222) 28% 24%);
  background: hsl(var(--cat-h, 222) 30% 12%);
}
html.dark .ub-feature-list li i { color: hsl(var(--cat-h, 222) 62% 76%); }
html.dark .ub-feature-list li + li { border-color: hsl(var(--cat-h, 222) 28% 22%); }

/* 使用说明：编号徽章更大，卡片更高 */
.ub-step {
  min-height: 92px;
  padding: 17px 18px;
  align-items: center;
  transition: transform .16s ease, box-shadow .2s ease, border-color .2s ease;
}
.ub-step:hover {
  transform: translateY(-2px);
  border-color: hsl(var(--cat-h, 222) 52% 82%);
  box-shadow: 0 14px 28px -24px hsl(var(--cat-h, 222) 50% 40% / .5);
}
.ub-step::before { width: 36px; height: 36px; border-radius: 11px; font-size: 12px; }
.ub-step span { font-size: 13.6px; line-height: 1.75; }
.ub-step {
  background: hsl(var(--cat-h, 222) 72% 97.8%);
  border-color: hsl(var(--cat-h, 222) 48% 91%);
}
.ub-step:hover { background: var(--ub-surface); }
html.dark .ub-step {
  background: hsl(var(--cat-h, 222) 30% 12%);
  border-color: hsl(var(--cat-h, 222) 28% 22%);
}
html.dark .ub-step:hover { background: var(--ub-surface); }

/* 使用说明：四个步骤收进一块分类色底板，白色步骤卡浮在上面 */
.ub-steps {
  padding: 12px;
  border: 1px solid hsl(var(--cat-h, 222) 52% 88%);
  border-radius: 16px;
  background: hsl(var(--cat-h, 222) 74% 95.8%);
  gap: 10px;
}
html.dark .ub-steps {
  border-color: hsl(var(--cat-h, 222) 28% 24%);
  background: hsl(var(--cat-h, 222) 32% 15%);
}
.ub-step {
  background: #ffffff;
  border-color: hsl(var(--cat-h, 222) 50% 90%);
}
.ub-step:hover { background: #ffffff; }
html.dark .ub-step {
  background: var(--ub-surface-2);
  border-color: hsl(var(--cat-h, 222) 28% 24%);
}
html.dark .ub-step:hover { background: var(--ub-surface-3); }

/* 相关工具：和页面分类色同底的浅色卡，悬停转白，避免成排白卡 */
.ub-related-card { background: var(--ub-surface); }
.ub-related-card:hover {
  background: hsl(var(--cat-h, 222) 74% 97.4%);
  border-color: hsl(var(--cat-h, 222) 52% 78%);
  box-shadow: 0 18px 34px -26px hsl(var(--cat-h, 222) 55% 40% / .45);
}
html.dark .ub-related-card { background: var(--ub-surface); }
html.dark .ub-related-card:hover { background: hsl(var(--cat-h, 222) 30% 15%); }

/* 工具页 / 我的工具箱的标题区：从裸标题变成一块带分类色的头部卡片，
   和分类页的 hero 呼应，页面开场不再是一片空白底 */
.ub-page-head {
  margin: 4px 0 16px;
  padding: 20px 22px 18px;
  border: 1px solid hsl(var(--cat-h, 222) 48% 89%);
  border-radius: 16px;
  background: hsl(var(--cat-h, 222) 70% 97.6%);
  box-shadow: 0 1px 2px rgba(21, 40, 92, .04);
}
html.dark .ub-page-head {
  border-color: hsl(var(--cat-h, 222) 28% 24%);
  background: hsl(var(--cat-h, 222) 30% 12%);
  box-shadow: none;
}
.ub-page-title { font-size: 25px; letter-spacing: -.022em; }
.ub-page-title i {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: hsl(var(--cat-h, 222) 60% 46%);
  color: #ffffff;
  font-size: 18px;
  box-shadow: 0 10px 20px -14px hsl(var(--cat-h, 222) 62% 38% / .9);
}
html.dark .ub-page-title i {
  background: hsl(var(--cat-h, 222) 50% 34%);
  color: #ffffff;
  box-shadow: none;
}
.ub-page-desc { font-size: 14px; }

/* 文本框加一层内阴影，像真正可以写入的编辑面 */
.ub-textarea { box-shadow: inset 0 1px 2px rgba(21, 40, 92, .06); }
html.dark .ub-textarea { box-shadow: inset 0 1px 2px rgba(0, 0, 0, .5); }

/* 输入/输出面板：极浅面板底 + 纯白文本框，做出纸面层次 */
.ub-panel { background: var(--ub-surface); }
html.dark .ub-panel { background: var(--ub-surface); }
.ub-panel .ub-textarea {
  background: #f7faff;
  border-color: #dfe8f9;
}
.ub-panel .ub-input,
.ub-panel .ub-select { background: #ffffff; }
html.dark .ub-panel .ub-textarea {
  background: #0a1220;
  border-color: #26354f;
}
html.dark .ub-panel .ub-input,
html.dark .ub-panel .ub-select { background: #0a1220; }

/* 面板状态条：一行轻量说明，不再是带框灰块 */
.ub-panel-meta {
  margin: 9px 0 0;
  padding: 3px 2px 0;
  border: 0;
  background: transparent;
  color: var(--ub-text-3);
  font-size: 12px;
}
.ub-panel-meta.is-ok,
.ub-panel-meta.is-error { padding: 6px 10px; border-radius: 8px; }

/* 空态提示行（请输入 / 处理结果会显示在这里）同样不画框，避免一列灰盒子 */
.ub-status {
  padding: 3px 2px 0;
  border: 0;
  background: transparent;
  color: var(--ub-text-3);
}
.ub-status.is-ok,
.ub-status.is-error { padding: 6px 10px; border-radius: 8px; }

/* 次级操作按钮在浅底面板上改成白底轻描边 */
.ub-panel-foot .ub-btn:not(.ub-btn-primary):not(.ub-btn-ghost) {
  background: #ffffff;
  border-color: var(--ub-border);
}
html.dark .ub-panel-foot .ub-btn:not(.ub-btn-primary):not(.ub-btn-ghost) {
  background: rgba(255, 255, 255, .04);
}

/* 窄屏：模块卡与步骤底板的留白收紧，一屏能看到更多内容 */
@media (max-width: 640px) {
  .ub-about { padding: 15px 16px 18px; border-radius: 16px; }
  .ub-about .ub-section-title { font-size: 17.5px; }
  .ub-use { min-height: 0; padding: 15px 16px; gap: 10px; }
  .ub-steps { padding: 10px; border-radius: 14px; }
  .ub-step { min-height: 0; padding: 14px 14px; }
  .ub-page-head { padding: 16px 16px 15px; border-radius: 14px; }
  .ub-page-title { font-size: 23px; }
  .ub-page-title i { width: 38px; height: 38px; font-size: 16px; }
}

/* 其他分类入口：图标用强调色小块，悬停整卡提亮，收尾区块不再是一片灰白胶囊 */
.ub-cat-link-card[data-cat="text"] { --cat-h: 222; }
.ub-cat-link-card[data-cat="image"] { --cat-h: 338; }
.ub-cat-link-card[data-cat="design"] { --cat-h: 266; }
.ub-cat-link-card[data-cat="pdf"] { --cat-h: 22; }
.ub-cat-link-card[data-cat="file"] { --cat-h: 38; }
.ub-cat-link-card[data-cat="dev"] { --cat-h: 192; }
.ub-cat-link-card[data-cat="calc"] { --cat-h: 164; }
.ub-cat-link-card[data-cat="data"] { --cat-h: 146; }
.ub-cat-link-card[data-cat="work"] { --cat-h: 232; }
.ub-cat-link-card[data-cat="edu"] { --cat-h: 204; }
.ub-cat-link-card[data-cat="life"] { --cat-h: 10; }
.ub-cat-link-card[data-cat="test"] { --cat-h: 92; }
.ub-cat-link-card[data-cat="audio"] { --cat-h: 282; }
.ub-cat-link-card[data-cat="video"] { --cat-h: 0; }
.ub-cat-link-card[data-cat="fun"] { --cat-h: 46; }
.ub-cat-link-card[data-cat="other"] { --cat-h: 218; }
.ub-cat-link-card-icon {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: hsl(var(--cat-h, 222) 76% 94%);
  color: hsl(var(--cat-h, 222) 62% 40%);
  font-size: 12px;
}
.ub-cat-link-card-name { font-weight: 500; }
.ub-cat-link-card:hover {
  border-color: hsl(var(--cat-h, 222) 52% 78%);
  background: var(--ub-surface);
  box-shadow: 0 12px 24px -22px hsl(var(--cat-h, 222) 55% 40% / .5);
  transform: translateY(-2px);
}
.ub-cat-link-card:hover .ub-cat-link-card-icon {
  background: hsl(var(--cat-h, 222) 58% 44%);
  color: #ffffff;
}
html.dark .ub-cat-link-card-icon {
  background: hsl(var(--cat-h, 222) 36% 20%);
  color: hsl(var(--cat-h, 222) 66% 80%);
}
html.dark .ub-cat-link-card:hover .ub-cat-link-card-icon {
  background: hsl(var(--cat-h, 222) 44% 32%);
  color: #ffffff;
}

/* 首页「快速开始」胶囊：图标带强调色，悬停整颗胶囊染色 */
.ub-quick-link i:not(.fa-chevron-right) { color: var(--ub-accent); }
/* 三枚胶囊按工具所属分类上色，一排里的图标不再同色 */
.ub-quick-list .ub-quick-link:nth-child(1) i:not(.fa-chevron-right) { color: hsl(222 64% 46%); }
.ub-quick-list .ub-quick-link:nth-child(2) i:not(.fa-chevron-right) { color: hsl(146 52% 36%); }
.ub-quick-list .ub-quick-link:nth-child(3) i:not(.fa-chevron-right) { color: hsl(266 56% 52%); }
.ub-quick-list .ub-quick-link:nth-child(4) i:not(.fa-chevron-right) { color: hsl(22 70% 46%); }
html.dark .ub-quick-list .ub-quick-link:nth-child(1) i:not(.fa-chevron-right) { color: hsl(222 70% 74%); }
html.dark .ub-quick-list .ub-quick-link:nth-child(2) i:not(.fa-chevron-right) { color: hsl(146 56% 68%); }
html.dark .ub-quick-list .ub-quick-link:nth-child(3) i:not(.fa-chevron-right) { color: hsl(266 66% 78%); }
html.dark .ub-quick-list .ub-quick-link:nth-child(4) i:not(.fa-chevron-right) { color: hsl(22 80% 70%); }
.ub-quick-link:hover {
  border-color: color-mix(in srgb, var(--ub-accent) 30%, transparent);
  background: var(--ub-accent-soft);
  color: var(--ub-text);
}
html.dark .ub-quick-link:hover { background: var(--ub-accent-soft); }

/* 面板标题图标：从一枚小图标变成分类色的小方块，和页面头部图标呼应 */
.ub-panel-title i {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: hsl(var(--cat-h, 222) 78% 94%);
  color: hsl(var(--cat-h, 222) 60% 40%);
  font-size: 12px;
  box-shadow: inset 0 0 0 1px hsl(var(--cat-h, 222) 55% 87%);
}
html.dark .ub-panel-title i {
  background: hsl(var(--cat-h, 222) 36% 20%);
  color: hsl(var(--cat-h, 222) 66% 80%);
  box-shadow: none;
}

/* 取色器：原生的那个小方块太小，做成可点的色板按钮 */
.ub-color-picker {
  width: 46px;
  height: 30px;
  padding: 3px;
  border: 1px solid var(--ub-border);
  border-radius: 9px;
  background: var(--ub-surface);
  cursor: pointer;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.ub-color-picker::-webkit-color-swatch-wrapper { padding: 0; }
.ub-color-picker::-webkit-color-swatch {
  border: 0;
  border-radius: 6px;
  box-shadow: inset 0 0 0 1px rgba(17, 28, 51, .1);
}
.ub-color-picker::-moz-color-swatch { border: 0; border-radius: 6px; }
.ub-color-picker:hover { border-color: var(--ub-border-2); }
.ub-color-picker:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 3px var(--ub-accent-soft);
}

/* 表单小标签：比正文再轻一档，但不再灰到看不见 */
.ub-label { font-size: 12.5px; color: var(--ub-text-2); }

/* --------------------------------------------------------------------------
   颜色转换器的两个结果区：色板与对比度，做成能一眼看懂的实测面板
   -------------------------------------------------------------------------- */
.ub-color-palette {
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 10px;
}
.ub-color-chip {
  padding: 7px 7px 8px;
  border-radius: 12px;
  transition: transform .16s ease, box-shadow .18s ease, border-color .18s ease;
}
.ub-color-chip-box {
  height: 58px;
  border-radius: 9px;
  border: 0;
  box-shadow: inset 0 0 0 1px rgba(17, 28, 51, .12);
}
.ub-color-chip-hex {
  font-size: 10.5px;
  letter-spacing: .01em;
  text-align: center;
}
.ub-color-chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 26px -22px hsl(var(--cat-h, 222) 60% 35% / .6);
}

/* 对比度：两张全宽结果卡，样品块和数值放大，结论标签独立成色块 */
.ub-contrast {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: none;
  margin: 0;
}
.ub-contrast-row {
  padding: 16px 18px;
  gap: 14px;
  border-radius: 14px;
  box-shadow: 0 1px 2px rgba(21, 40, 92, .05);
}
.ub-contrast-sample {
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 12px;
  font-size: 19px;
  font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(17, 28, 51, .16);
}
.ub-contrast-name { font-size: 13.5px; color: var(--ub-text); font-weight: 500; }
.ub-contrast-ratio {
  margin-left: auto;
  font-size: 17px;
  letter-spacing: -.015em;
}
.ub-contrast-level { padding: 4px 9px; font-size: 11.5px; }
html.dark .ub-contrast-row { box-shadow: 0 1px 2px rgba(0, 0, 0, .45); }

@media (max-width: 900px) {
  .ub-color-palette { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .ub-contrast { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px) {
  .ub-color-palette { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .ub-color-chip-box { height: 48px; }
  .ub-contrast-row { padding: 13px 14px; gap: 11px; }
  .ub-contrast-sample { width: 42px; height: 42px; font-size: 17px; }
  .ub-contrast-ratio { font-size: 15px; }
}

/* 区块标题再抬半级，和正文之间的层级更清楚 */
.ub-section-title { font-size: 21px; letter-spacing: -.018em; }

/* --------------------------------------------------------------------------
   404：从一片空旷的居中文字，收成一张带巨型幽灵数字的卡片
   -------------------------------------------------------------------------- */
.ub-404 {
  min-height: 0;
  max-width: 720px;
  margin: 44px auto 12px;
  padding: 38px 40px 34px;
  border: 1px solid var(--ub-border);
  border-radius: 20px;
  background: var(--ub-surface);
  box-shadow: 0 26px 60px -46px rgba(17, 32, 74, .45);
}
html.dark .ub-404 { box-shadow: none; }
.ub-404-code {
  font-size: 96px;
  font-weight: 800;
  letter-spacing: -.045em;
  line-height: .94;
  color: var(--ub-accent);
  opacity: .12;
}
.ub-404 h1 { margin-top: 8px; font-size: 27px; }
html.dark .ub-404-code { color: hsl(222 90% 76%); opacity: .2; }
.ub-404-desc { max-width: 48ch; }
.ub-404-tools {
  margin-top: 22px;
  padding-top: 4px;
}
.ub-404-tools .ub-quick-link {
  border-color: transparent;
  background: var(--ub-surface-2);
}
.ub-404-tools .ub-quick-link:hover {
  border-color: hsl(222 60% 86%);
  background: var(--ub-accent-soft);
}
@media (max-width: 640px) {
  .ub-section-title { font-size: 18.5px; }
  .ub-404 { margin: 20px 14px 8px; padding: 28px 20px 24px; border-radius: 16px; }
  .ub-404-code { font-size: 68px; }
  .ub-404 h1 { font-size: 23px; }
}

/* --------------------------------------------------------------------------
   全局轻盈化：大块白色容器不再靠 1px 灰边站住，改用留白 + 柔和投影
   （描边只留给真正需要分隔的地方：FAQ 行、导航当前态、输入框）
   -------------------------------------------------------------------------- */
.ub-panel,
.ub-cat-card,
.ub-tool-row,
.ub-faq,
.ub-related-card,
.ub-feature-list,
.ub-empty-panel,
.ub-ad,
.ub-my-bar,
.ub-about {
  border-color: transparent;
  border-radius: 16px;
  box-shadow: 0 1px 2px rgba(20, 38, 86, .05), 0 20px 44px -36px rgba(20, 38, 86, .55);
}
html.dark .ub-panel,
html.dark .ub-cat-card,
html.dark .ub-tool-row,
html.dark .ub-faq,
html.dark .ub-related-card,
html.dark .ub-feature-list,
html.dark .ub-empty-panel,
html.dark .ub-ad,
html.dark .ub-my-bar,
html.dark .ub-about {
  border-color: transparent;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .45), 0 20px 44px -34px rgba(0, 0, 0, .7);
}

/* 区块之间多给一点呼吸，标题与内容也拉开距离 */
.ub-section { padding-top: 36px; }
.ub-section-head { padding-bottom: 10px; margin-bottom: 16px; }

/* 面板内部放松一格，输入区不贴着边缘 */
.ub-panel { padding: 18px; }
.ub-page-head { border-radius: 18px; padding: 22px 24px 20px; }

@media (max-width: 640px) {
  .ub-section { padding-top: 28px; }
  .ub-panel { padding: 15px; }
  .ub-page-head { padding: 17px 16px 16px; }
}

/* 大屏上的字号再抬一档：首屏主标题与工具页标题更有分量 */
@media (min-width: 641px) {
  .ub-page-title { font-size: 27px; }
  .ub-page-title i { width: 46px; height: 46px; font-size: 19px; }
}
@media (min-width: 1100px) {
  .ub-masthead { padding: 42px 0 12px; }
  .ub-masthead h1 { font-size: 36px; line-height: 1.26; letter-spacing: -.03em; }
  .ub-masthead p { font-size: 14.5px; }
}

/* --------------------------------------------------------------------------
   顶部：图标按钮去掉硬边框、分类导航加悬停底，整体更轻
   -------------------------------------------------------------------------- */
.ub-icon-btn {
  border-color: transparent;
  background: var(--ub-surface-2);
  border-radius: 9px;
  transition: background-color .15s ease, color .15s ease, box-shadow .18s ease;
}
.ub-icon-btn:hover {
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  border-color: transparent;
}
html.dark .ub-icon-btn { background: var(--ub-surface-2); }
html.dark .ub-icon-btn:hover { background: var(--ub-accent-soft); color: var(--ub-accent); }

.ub-cat-link { border-radius: 8px; transition: color .15s ease, background-color .15s ease; }
.ub-cat-link:hover { background: var(--ub-surface-2); }
.ub-cat-link.is-active { background: transparent; }
html.dark .ub-cat-link:hover { background: var(--ub-surface-2); }

@media (min-width: 861px) {
  .ub-header-row { height: 62px; }
  .ub-search-box { height: 38px; }
}
/* 空分类的「即将上线」：16 张卡里重复 12 次，去掉胶囊底色，只留一枚小圆点和一行浅字 */
.ub-cat-card .ub-cat-empty {
  padding: 0;
  background: transparent;
  color: var(--ub-text-3);
  font-size: 11.5px;
}
.ub-cat-card .ub-cat-empty::before { background: #e0a33c; }

/* 页脚链接放大一点、行距放松，收尾不至于太局促 */
.ub-footer-links a { font-size: 13px; line-height: 1.9; }
.ub-footer-tagline { font-size: 13.5px; }

/* --------------------------------------------------------------------------
   工具页工作台：两块面板收进一张分类色底板，输入 / 输出成为一个整体模块
   -------------------------------------------------------------------------- */
.ub-tool-grid {
  padding: 12px;
  border-radius: 20px;
  background: hsl(var(--cat-h, 222) 74% 96.4%);
  gap: 12px;
}
html.dark .ub-tool-grid { background: hsl(var(--cat-h, 222) 30% 8%); }
.ub-tool-grid .ub-panel { margin-bottom: 0; }
@media (max-width: 640px) {
  .ub-tool-grid { padding: 8px; border-radius: 16px; gap: 8px; }
}

/* 使用说明底板 / 能力清单：和其他模块统一为无边框，靠底色深浅分层 */
.ub-steps {
  border-color: transparent;
  background: hsl(var(--cat-h, 222) 74% 95.3%);
}
html.dark .ub-steps { border-color: transparent; background: hsl(var(--cat-h, 222) 30% 8.5%); }
.ub-step { background: #fff; }
html.dark .ub-step { background: var(--ub-surface); }

.ub-feature-list { border-color: transparent; }

/* 相关工具：悬停时整卡轻微上色，图标由浅底变实底，保证“能点进去”这件事看得出来 */
.ub-related-card:hover { background: hsl(var(--cat-h, 222) 74% 96.2%); }
.ub-related-card:hover .ub-related-icon {
  background: hsl(var(--cat-h, 222) 58% 46%);
  color: #fff;
}
.ub-related-icon { transition: background-color .16s ease, color .16s ease; }
.ub-related-desc { font-size: 13px; }

/* 区块标题与旁边的小字提示：改为基线对齐，21px 标题旁边的小字不再“钻”进标题中间 */
.ub-section-head { align-items: baseline; }
.ub-section-head .ub-section-count { line-height: 1.5; }
.ub-section-head .ub-section-more { align-self: center; }

/* 常见问题：问题再抬半档、行距放松，展开图标收进一枚浅底圆徽，点击感更明确 */
.ub-faq-item summary { padding: 18px 22px; font-size: 15px; gap: 16px; }
.ub-faq-item summary i {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ub-surface-2);
  font-size: 10px;
  transition: transform .2s ease, color .2s ease, background-color .2s ease;
}
.ub-faq-item summary:hover i { background: var(--ub-surface); }
.ub-faq-item[open] summary i { background: var(--ub-accent-soft); }
.ub-faq-body { padding: 0 22px 20px; font-size: 14px; }

/* 本地运行提示：从一块孤零零的白条改成一条浅绿信任带，和蓝色工作台形成冷暖对比 */
.ub-privacy-note {
  border-color: transparent;
  border-radius: 12px;
  padding: 11px 14px;
  font-size: 13px;
  background: hsl(152 62% 96.4%);
  color: hsl(152 30% 30%);
  align-items: center;
}
.ub-privacy-note i { color: hsl(152 46% 36%); margin-top: 0; font-size: 12px; }
html.dark .ub-privacy-note { background: hsl(152 24% 13%); color: hsl(152 26% 76%); }
html.dark .ub-privacy-note i { color: hsl(152 44% 62%); }

/* 深浅梯度色板：悬停轻抬，指示可点 */
.ub-color-chip { transition: transform .16s ease, box-shadow .2s ease; }
.ub-color-chip:hover { transform: translateY(-2px); box-shadow: 0 14px 26px -20px rgba(20, 38, 86, .55); }

/* 步骤说明文字再松一点 */
.ub-step span { font-size: 14px; }

/* 页脚：品牌标改成一枚强调色小方块，16 个分类链接前加同色系圆点，收尾也带上分类色体系 */
.ub-footer-brand i {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 12px;
}
.ub-footer-links a { display: inline-flex; align-items: center; gap: 8px; }
.ub-footer-links a::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: hsl(var(--dot-h, 222) 62% 56%);
  transition: background-color .15s ease;
}
.ub-footer-links a:hover::before { background: hsl(var(--dot-h, 222) 70% 44%); }
.ub-footer-links li:nth-child(1) a  { --dot-h: 222; }
.ub-footer-links li:nth-child(2) a  { --dot-h: 338; }
.ub-footer-links li:nth-child(3) a  { --dot-h: 266; }
.ub-footer-links li:nth-child(4) a  { --dot-h: 22; }
.ub-footer-links li:nth-child(5) a  { --dot-h: 38; }
.ub-footer-links li:nth-child(6) a  { --dot-h: 192; }
.ub-footer-links li:nth-child(7) a  { --dot-h: 164; }
.ub-footer-links li:nth-child(8) a  { --dot-h: 146; }
.ub-footer-links li:nth-child(9) a  { --dot-h: 232; }
.ub-footer-links li:nth-child(10) a { --dot-h: 204; }
.ub-footer-links li:nth-child(11) a { --dot-h: 10; }
.ub-footer-links li:nth-child(12) a { --dot-h: 92; }
.ub-footer-links li:nth-child(13) a { --dot-h: 282; }
.ub-footer-links li:nth-child(14) a { --dot-h: 0; }
.ub-footer-links li:nth-child(15) a { --dot-h: 46; }
.ub-footer-links li:nth-child(16) a { --dot-h: 218; }
html.dark .ub-detail-card {
  box-shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 20px 44px -36px rgba(0, 0, 0, .9);
}
.ub-faq { border-radius: 16px; }
@media (max-width: 640px) {
}

/* 广告位之后紧跟的区块：广告下距收到 12px，区块再补 8px，标题前的空白约 27px */
.ub-ad { margin-bottom: 12px; }
.ub-ad + .ub-section { padding-top: 8px; }

/* ------------------------------------------------------------------
 * 工具页详情区块：白卡 + 图标标题 + 浅色小卡（参考样式统一四个区块）
 * 工具介绍 / 使用说明 / 常见问题 / 相关工具 都是同一套：一块白卡包住标题和内容
 * ------------------------------------------------------------------ */
.ub-tool-detail .ub-section { padding-top: 20px; }
.ub-tool-detail > .ub-section:first-child { padding-top: 24px; }

.ub-detail-panel {
  background: var(--ub-surface);
  border-radius: 16px;
  padding: 20px 22px 22px;
  box-shadow: 0 1px 2px rgba(20, 38, 86, .05), 0 20px 44px -36px rgba(20, 38, 86, .55);
}
html.dark .ub-detail-panel {
  box-shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 20px 44px -36px rgba(0, 0, 0, .9);
}

.ub-detail-panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.ub-detail-panel-head .ub-section-title {
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: 0;
}
.ub-detail-icon {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: hsl(var(--cat-h, 222) 58% 47%);
  color: #fff;
  font-size: 13px;
  box-shadow: 0 6px 14px -8px hsl(var(--cat-h, 222) 55% 40% / .7);
}
html.dark .ub-detail-icon {
  background: hsl(var(--cat-h, 222) 45% 38%);
  color: #fff;
}

/* 工具介绍：左边正文、右边能力清单竖排小卡，整块不留半张空桌 */
.ub-tool-detail .ub-tool-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}
.ub-tool-detail .ub-feature-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  box-shadow: none;
}
.ub-tool-detail .ub-feature-list li {
  gap: 8px;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--ub-surface-2);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ub-text);
}
.ub-tool-detail .ub-feature-list li + li { border-top: 0; }
.ub-tool-detail .ub-feature-list li i { color: hsl(var(--cat-h, 222) 56% 44%); font-size: 12px; }
html.dark .ub-tool-detail .ub-feature-list li { background: var(--ub-surface-2); }
html.dark .ub-tool-detail .ub-feature-list li i { color: hsl(var(--cat-h, 222) 62% 74%); }

/* 使用说明：去掉外层色板，四个步骤直接做浅色小卡 */
.ub-tool-detail .ub-steps {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
  gap: 10px;
}
.ub-tool-detail .ub-step {
  min-height: 0;
  padding: 14px 16px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--ub-surface-2);
  box-shadow: none;
}
.ub-tool-detail .ub-step:hover {
  transform: none;
  border-color: transparent;
  box-shadow: none;
  background: var(--ub-surface-3);
}
html.dark .ub-tool-detail .ub-step { background: var(--ub-surface-2); }
html.dark .ub-tool-detail .ub-step:hover { background: var(--ub-surface-3); }

/* 常见问题：每条也做浅色小卡，去掉分隔线 */
.ub-detail-panel .ub-faq {
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
  overflow: visible;
}
.ub-detail-panel .ub-faq-item {
  border-radius: 10px;
  background: var(--ub-surface-2);
  margin-bottom: 8px;
}
.ub-detail-panel .ub-faq-item + .ub-faq-item { border-top: 0; }
.ub-detail-panel .ub-faq-item:last-child { margin-bottom: 0; }
.ub-detail-panel .ub-faq-item summary { padding: 14px 18px; }
.ub-detail-panel .ub-faq-item summary:hover { background: hsl(var(--cat-h, 222) 70% 96.5%); border-radius: 10px; }
.ub-detail-panel .ub-faq-item[open] summary { background: transparent; }
.ub-detail-panel .ub-faq-body { padding: 0 18px 16px; }
html.dark .ub-detail-panel .ub-faq-item { background: var(--ub-surface-2); }
html.dark .ub-detail-panel .ub-faq-item summary:hover { background: var(--ub-surface-3); }

/* 相关工具：小卡也从白底降成浅一层的底色，避免白卡里再摞一排白卡 */
.ub-tool-detail .ub-related { max-width: none; }
.ub-tool-detail .ub-related-card {
  border: 1px solid transparent;
  background: var(--ub-surface-2);
  box-shadow: none;
}
.ub-tool-detail .ub-related-card:hover {
  border-color: transparent;
  background: hsl(var(--cat-h, 222) 74% 96%);
}
html.dark .ub-tool-detail .ub-related-card { background: var(--ub-surface-2); }
html.dark .ub-tool-detail .ub-related-card:hover { background: var(--ub-surface-3); }

@media (max-width: 640px) {
  .ub-detail-panel { padding: 16px 15px 16px; border-radius: 14px; }
  .ub-detail-panel-head { margin-bottom: 12px; }
  .ub-detail-panel-head .ub-section-title { font-size: 17px; }
  .ub-tool-detail .ub-tool-intro { grid-template-columns: 1fr; gap: 16px; }
  .ub-tool-detail .ub-feature-list { grid-template-columns: 1fr; }
  .ub-tool-detail .ub-steps { grid-template-columns: 1fr; }
}

/* 分类页三个区块（这个分类能做什么 / 本分类工具 / 常见问题）也换成同一套白卡 + 图标标题 */
.ub-about {
  margin-top: 20px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
}
html.dark .ub-about { background: none; box-shadow: none; }
.ub-panel-count {
  margin-left: auto;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ub-text-3);
}
.ub-detail-panel .ub-tool-row {
  border-color: transparent;
  background: var(--ub-surface-2);
  box-shadow: none;
}
.ub-detail-panel .ub-tool-row:hover { background: var(--ub-surface); }
html.dark .ub-detail-panel .ub-tool-row { background: var(--ub-surface-2); }
html.dark .ub-detail-panel .ub-tool-row:hover { background: var(--ub-surface-3); }

/* 白卡里的空状态不再套一层白卡，改成同色系的浅色底 */
.ub-detail-panel .ub-empty-panel {
  max-width: none;
  border-color: transparent;
  border-radius: 12px;
  background: var(--ub-surface-2);
  box-shadow: none;
  padding: 26px 24px 24px;
}
html.dark .ub-detail-panel .ub-empty-panel { background: var(--ub-surface-2); }

/* 相关工具：一行 4 个，图标在左、工具名在右侧，描述压一行 */
.ub-tool-detail .ub-related {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.ub-tool-detail .ub-related-card {
  flex-direction: row;
  align-items: center;
  gap: 11px;
  min-height: 0;
  padding: 13px 30px 13px 14px;
  border-radius: 10px;
}
.ub-tool-detail .ub-related-card .ub-related-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  font-size: 14px;
}
.ub-tool-detail .ub-related-body { min-width: 0; gap: 2px; }
.ub-tool-detail .ub-related-name {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ub-tool-detail .ub-related-desc {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ub-text-3);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ub-tool-detail .ub-related-card i.ub-related-arrow {
  position: absolute;
  right: 12px;
  bottom: auto;
  top: 50%;
  transform: translateY(-50%);
  margin: 0;
  opacity: .35;
}
@media (max-width: 900px) {
  .ub-tool-detail .ub-related { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .ub-tool-detail .ub-related { grid-template-columns: 1fr; }
}
/* 相关工具不足 4 个时不让整行留空：2 个铺两列、3 个铺三列，凑满 4 个才是一行四个 */
.ub-tool-detail .ub-related:has(> .ub-related-card:nth-child(2):last-child) {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.ub-tool-detail .ub-related:has(> .ub-related-card:nth-child(3):last-child) {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* 工具卡：图标 + 名称一行，描述落到两者下方整行，右侧箭头去掉 */
.ub-tool-row-link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 10px;
  row-gap: 7px;
  align-items: start;
}
.ub-tool-row-icon { grid-column: 1; grid-row: 1; }
.ub-tool-row-body { display: contents; }
.ub-tool-row-title {
  grid-column: 2;
  grid-row: 1;
  align-self: center;
  padding-right: 26px;
}
.ub-tool-row-desc {
  grid-column: 1 / -1;
  grid-row: 2;
  margin: 0;
  -webkit-line-clamp: 2;
}
.ub-tool-row-arrow { display: none; }

/* 分类用途卡：图标在左、标题紧跟图标右侧，描述排在标题下面 */
.ub-use {
  flex-direction: row;
  align-items: flex-start;
  gap: 12px;
  min-height: 0;
  padding: 14px 16px;
}
.ub-use .ub-use-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  font-size: 14px;
  margin-top: 1px;
}
.ub-use-body { gap: 3px; width: auto; flex: 1 1 auto; }
.ub-use-body strong { font-size: 14px; line-height: 1.4; }
.ub-use-desc { font-size: 12.5px; line-height: 1.6; }

/* ------------------------------------------------------------------
 * 顶部导航与页脚：去掉硬边，改成“悬浮工具条 + 圆角收口页脚”
 * ------------------------------------------------------------------ */
.ub-header {
  border-bottom: 0;
  box-shadow: 0 1px 0 rgba(20, 38, 86, .04), 0 18px 40px -34px rgba(20, 38, 86, .55);
}
html.dark .ub-header {
  box-shadow: 0 1px 0 rgba(0, 0, 0, .35), 0 18px 40px -34px rgba(0, 0, 0, .9);
}

/* 品牌标：从一枚裸图标变成浅蓝底的小方块，左侧辨识度更强 */
.ub-logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
}
html.dark .ub-logo-mark { background: rgba(127, 157, 255, .16); }
.ub-logo-name { font-size: 16.5px; letter-spacing: -.015em; }
.ub-logo-sub { font-size: 12.5px; }

/* 搜索：去掉硬描边，浅底 + 聚焦时整框换白并加柔光环 */
.ub-search-box {
  border-color: transparent;
  background: var(--ub-surface-2);
  box-shadow: inset 0 1px 2px rgba(20, 38, 86, .05);
}
.ub-search-box:focus-within {
  border-color: transparent;
  background: var(--ub-surface);
  box-shadow: 0 0 0 3px var(--ub-accent-soft), inset 0 0 0 1px var(--ub-accent);
}
html.dark .ub-search-box { box-shadow: inset 0 1px 2px rgba(0, 0, 0, .5); }

@media (min-width: 861px) {
  .ub-search-box { height: 40px; border-radius: 11px; }
  .ub-icon-btn { width: 38px; height: 38px; border-radius: 10px; }
  .ub-lang-switch {
    gap: 2px;
    padding: 3px;
    border-radius: 10px;
    background: var(--ub-surface-2);
  }
  .ub-lang-switch .ub-lang-btn { padding: 6px 11px; border-radius: 8px; }
  .ub-lang-btn.is-active { background: var(--ub-accent); color: #fff; }
}

/* 分类导航：去掉顶部分隔线，当前分类从下划线改成浅底胶囊 */
.ub-catnav {
  border-top: 0;
  gap: 4px;
  padding: 7px 0 9px;
}
.ub-cat-link { padding: 8px 9px; border-radius: 9px; }
.ub-cat-link.is-active::after { display: none; }
.ub-cat-link.is-active {
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
}
.ub-cat-link.is-active i { color: var(--ub-accent); }
.ub-cat-link.ub-cat-home:hover {
  background: var(--ub-accent-soft);
  color: var(--ub-accent-hover);
}

/* 页脚：整块收口成一张圆角白卡，不再用一条通栏分隔线起头 */
.ub-footer {
  margin-top: 44px;
  border-top: 0;
  border-radius: 20px 20px 0 0;
  background: var(--ub-surface);
  box-shadow: 0 -18px 40px -38px rgba(20, 38, 86, .45);
}
html.dark .ub-footer { background: var(--ub-surface); box-shadow: 0 -18px 40px -38px rgba(0, 0, 0, .9); }
.ub-footer-grid { padding: 34px 0 26px; gap: 44px; }
.ub-footer-brand { font-size: 14px; gap: 8px; }
.ub-footer-brand i {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--ub-accent);
  color: #fff;
}
.ub-footer-tagline { margin-top: 10px; font-size: 14px; color: var(--ub-text-2); }
.ub-footer-note { margin-top: 8px; max-width: 46ch; font-size: 12.5px; line-height: 1.85; }
.ub-footer-title { font-size: 13px; letter-spacing: .02em; color: var(--ub-text-3); margin-bottom: 14px; }
.ub-footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 2px 0;
  color: var(--ub-text-2);
  transition: color .15s ease;
}
.ub-footer-links a::before { width: 6px; height: 6px; border-radius: 50%; }
.ub-footer-links a:hover { color: var(--ub-accent); }

/* 页脚底栏：去掉上方细线，右端两个入口做成小胶囊 */
.ub-footer-bottom {
  border-top: 0;
  padding: 20px 0 26px;
  margin-top: 6px;
}
.ub-footer-copy { font-size: 12px; color: var(--ub-text-3); }
.ub-footer-end { gap: 8px; }
.ub-footer-my, .ub-footer-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  border-radius: 8px;
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font-size: 12.5px;
  transition: color .15s ease, background-color .15s ease;
}
.ub-footer-my:hover, .ub-footer-top:hover { color: var(--ub-accent); background: var(--ub-accent-soft); }
html.dark .ub-footer-my, html.dark .ub-footer-top { background: var(--ub-surface-2); }

/* 窄屏页脚收紧：整块高度压到吸顶栏之下还能完整滚动出来 */
@media (max-width: 640px) {
  .ub-footer { margin-top: 28px; border-radius: 16px 16px 0 0; }
  .ub-footer-grid { padding: 24px 0 14px; gap: 24px; }
  .ub-footer-brand { font-size: 13.5px; }
  .ub-footer-tagline { margin-top: 8px; font-size: 13px; }
  .ub-footer-note { margin-top: 6px; font-size: 12px; line-height: 1.7; }
  .ub-footer-title { margin-bottom: 8px; }
  .ub-footer-links a { padding: 0; line-height: 1.75; }
  .ub-footer-bottom { padding: 12px 0 18px; margin-top: 2px; }
}

/* ------------------------------------------------------------------
 * 视觉浓度提升：分类卡上色、首页信息条加“铭牌”感、区块层次加深
 * ------------------------------------------------------------------ */
/* 分类卡：浅色底 + 实色图标块 + 白色工具胶囊，从远处一眼能分出 16 种颜色 */
.ub-cat-card {
  background: hsl(var(--cat-h, 222) 58% 96.4%);
  border-color: hsl(var(--cat-h, 222) 44% 88%);
  box-shadow: 0 2px 3px rgba(16, 24, 40, .03), 0 14px 28px -26px hsl(var(--cat-h, 222) 60% 32% / .55);
}
.ub-cat-card:hover {
  background: #ffffff;
  border-color: hsl(var(--cat-h, 222) 52% 76%);
  box-shadow: 0 22px 40px -28px hsl(var(--cat-h, 222) 62% 36% / .5);
}
.ub-cat-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: hsl(var(--cat-h, 222) 54% 38%);
  color: #fff;
  box-shadow: 0 8px 16px -10px hsl(var(--cat-h, 222) 60% 30% / .75), inset 0 0 0 1px rgba(255, 255, 255, .18);
}
html.dark .ub-cat-card {
  background: hsl(var(--cat-h, 222) 30% 13%);
  border-color: hsl(var(--cat-h, 222) 26% 24%);
}
html.dark .ub-cat-card:hover {
  background: hsl(var(--cat-h, 222) 28% 16%);
  border-color: hsl(var(--cat-h, 222) 34% 32%);
}
html.dark .ub-cat-card-icon {
  background: hsl(var(--cat-h, 222) 46% 34%);
  color: #fff;
}

.ub-cat-card-title { font-size: 15.5px; font-weight: 700; letter-spacing: -.01em; }
.ub-cat-card-count {
  padding: 2px 8px;
  border-radius: 999px;
  background: hsl(var(--cat-h, 222) 62% 90%);
  color: hsl(var(--cat-h, 222) 48% 32%);
  font-size: 11px;
  font-weight: 600;
}
html.dark .ub-cat-card-count { background: hsl(var(--cat-h, 222) 34% 24%); color: hsl(var(--cat-h, 222) 46% 78%); }
.ub-cat-card-desc { font-size: 13px; line-height: 1.75; color: var(--ub-text-2); }
html.dark .ub-cat-tool-link { background: hsl(var(--cat-h, 222) 24% 17%); border-color: hsl(var(--cat-h, 222) 26% 26%); color: #e6edfb; }
html.dark .ub-cat-card-more { background: hsl(var(--cat-h, 222) 32% 22%); color: hsl(var(--cat-h, 222) 46% 76%); }
html.dark .ub-cat-card-more:hover { background: hsl(var(--cat-h, 222) 34% 27%); color: hsl(var(--cat-h, 222) 52% 84%); }
html.dark .ub-quick-list .ub-quick-link:nth-child(1) > i:first-child { background: hsl(222 40% 22%); }
html.dark .ub-quick-list .ub-quick-link:nth-child(2) > i:first-child { background: hsl(146 34% 20%); }
html.dark .ub-quick-list .ub-quick-link:nth-child(3) > i:first-child { background: hsl(266 34% 26%); }
html.dark .ub-quick-list .ub-quick-link:nth-child(4) > i:first-child { background: hsl(22 44% 22%); }

/* 首页顶部：状态胶囊 + 快速入口做成白胶囊，信息条升级为带图标块的“铭牌” */
.ub-masthead .ub-masthead-eyebrow {
  padding: 5px 12px 5px 10px;
  border-radius: 999px;
  border-color: transparent;
  background: #e8f6ee;
  color: #1c7245;
  font-size: 12.5px;
  font-weight: 600;
}
html.dark .ub-masthead .ub-masthead-eyebrow { background: #122a1d; color: #6fd39a; }

.ub-quick-link {
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  background: var(--ub-surface);
  box-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 10px 22px -20px rgba(16, 38, 86, .55);
}
.ub-quick-link > i:first-child {
  width: 20px;
  height: 20px;
  display: inline-grid;
  place-items: center;
  border-radius: 6px;
  background: var(--ub-surface-2);
  font-size: 11px;
}
.ub-quick-list .ub-quick-link:nth-child(1) > i:first-child { background: hsl(222 70% 94%); }
.ub-quick-list .ub-quick-link:nth-child(2) > i:first-child { background: hsl(146 60% 93%); }
.ub-quick-list .ub-quick-link:nth-child(3) > i:first-child { background: hsl(266 62% 95%); }
.ub-quick-list .ub-quick-link:nth-child(4) > i:first-child { background: hsl(22 80% 94%); }

.ub-facts {
  padding: 6px;
  border-radius: 14px;
  box-shadow: 0 2px 3px rgba(16, 24, 40, .03), 0 20px 42px -34px rgba(16, 38, 86, .55);
}
.ub-fact { padding: 11px 12px; border-radius: 10px; }
.ub-fact + .ub-fact { border-top: 0; }
.ub-fact > i {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 11.5px;
}
.ub-fact-note > i { background: #e8f6ee; color: #1c7245; }
html.dark .ub-fact-note > i { background: #122a1d; color: #6fd39a; }
.ub-fact-value { font-size: 19px; }

/* 区块标题更压得住场：字号 + 行距一起提一档 */
.ub-section-title {
  font-size: 20px;
  letter-spacing: -.015em;
}

/* 白卡面板投影加深一档，和画布分出层次 */
.ub-detail-panel {
  box-shadow: 0 2px 3px rgba(20, 38, 86, .04), 0 26px 48px -40px rgba(20, 38, 86, .6);
}
html.dark .ub-detail-panel { box-shadow: 0 2px 3px rgba(0, 0, 0, .4), 0 26px 48px -40px rgba(0, 0, 0, .9); }

/* 工具页：白卡压深阴影、文本框回到纯白、按钮和清单都挂上分类色 */
.ub-panel {
  border-color: hsl(var(--cat-h, 222) 34% 90%);
  background: var(--ub-surface);
  box-shadow: 0 2px 3px rgba(21, 40, 92, .04), 0 22px 40px -34px rgba(21, 40, 92, .5);
}
html.dark .ub-panel { border-color: hsl(var(--cat-h, 222) 26% 24%); }

.ub-panel .ub-textarea,
.ub-panel .ub-input,
.ub-panel .ub-select {
  background: #fff;
  border-color: hsl(var(--cat-h, 222) 36% 88%);
  box-shadow: inset 0 1px 2px rgba(21, 40, 92, .05);
}
.ub-panel .ub-textarea:focus,
.ub-panel .ub-input:focus,
.ub-panel .ub-select:focus {
  background: #fff;
  border-color: hsl(var(--cat-h, 222) 55% 66%);
  box-shadow: 0 0 0 3px hsl(var(--cat-h, 222) 76% 92%);
}
html.dark .ub-panel .ub-textarea,
html.dark .ub-panel .ub-input,
html.dark .ub-panel .ub-select { background: hsl(var(--cat-h, 222) 22% 14%); border-color: hsl(var(--cat-h, 222) 24% 26%); }

/* 次级按钮：白底 + 分类色描边，主按钮给出实心投影 */
.ub-btn {
  background: var(--ub-surface);
  border-color: hsl(var(--cat-h, 222) 30% 86%);
  box-shadow: 0 1px 2px rgba(21, 40, 92, .04);
}
.ub-btn:hover {
  border-color: hsl(var(--cat-h, 222) 50% 68%);
  background: hsl(var(--cat-h, 222) 70% 97%);
  color: var(--ub-text);
}
.ub-btn-ghost {
  background: hsl(var(--cat-h, 222) 60% 97%);
  border-color: transparent;
  box-shadow: none;
}
.ub-btn-ghost:hover { background: hsl(var(--cat-h, 222) 66% 94%); border-color: transparent; }
.ub-btn-primary {
  background: var(--ub-accent);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 18px -12px rgba(59, 87, 232, .8);
}
.ub-btn-primary:hover { background: var(--ub-accent-hover); color: #fff; }

/* 能力清单：一整块浅蓝盒子拆成一张张白色小卡，勾选图标做成分类色小方块 */
.ub-feature-list {
  display: grid;
  gap: 8px;
  padding: 0;
  border: 0;
  background: transparent;
}
.ub-feature-list li {
  padding: 9px 12px;
  background: #fff;
  border: 1px solid hsl(var(--cat-h, 222) 40% 89%);
  border-radius: 10px;
  font-size: 13px;
  color: var(--ub-text);
  box-shadow: 0 6px 16px -16px hsl(var(--cat-h, 222) 50% 34% / .6);
}
.ub-feature-list li + li { border-top: 1px solid hsl(var(--cat-h, 222) 40% 89%); }
.ub-feature-list li i {
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  border-radius: 5px;
  background: hsl(var(--cat-h, 222) 78% 93%);
  color: hsl(var(--cat-h, 222) 56% 40%);
  font-size: 9px;
}
html.dark .ub-feature-list li {
  background: hsl(var(--cat-h, 222) 22% 16%);
  border-color: hsl(var(--cat-h, 222) 24% 26%);
  color: #e6edfb;
}
html.dark .ub-feature-list li i { background: hsl(var(--cat-h, 222) 32% 26%); color: hsl(var(--cat-h, 222) 52% 76%); }

/* 工具介绍右列：覆盖早前那版「一整块浅蓝盒子」的写法 */
.ub-tool-detail .ub-feature-list {
  display: grid;
  gap: 8px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}
.ub-tool-detail .ub-feature-list li {
  background: #fff;
  border: 1px solid hsl(var(--cat-h, 222) 40% 89%);
  border-radius: 10px;
  padding: 9px 12px;
  color: var(--ub-text);
  box-shadow: 0 6px 16px -16px hsl(var(--cat-h, 222) 50% 34% / .6);
}
.ub-tool-detail .ub-feature-list li + li { border-top: 1px solid hsl(var(--cat-h, 222) 40% 89%); }
.ub-tool-detail .ub-feature-list li i {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 5px;
  background: hsl(var(--cat-h, 222) 78% 93%);
  color: hsl(var(--cat-h, 222) 56% 40%);
  font-size: 9px;
}
html.dark .ub-tool-detail .ub-feature-list li {
  background: hsl(var(--cat-h, 222) 22% 16%);
  border-color: hsl(var(--cat-h, 222) 24% 26%);
  color: #e6edfb;
}
html.dark .ub-tool-detail .ub-feature-list li i { background: hsl(var(--cat-h, 222) 32% 26%); color: hsl(var(--cat-h, 222) 52% 76%); }

/* 分类页各区块之间统一 20px 节奏，和工具页一致 */
.ub-about { padding-top: 0; }
#ub-tools, #ub-faq, #ub-others { padding-top: 20px; }

/* 颜色转换器：深浅梯度与对比度也收成同一套白卡 + 图标标题 */
.ub-detail-panel-desc {
  margin: -6px 0 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ub-text-3);
}
.ub-detail-panel .ub-color-chip {
  border-color: transparent;
  background: var(--ub-surface-2);
}
.ub-detail-panel .ub-color-chip:hover { background: var(--ub-surface); }
.ub-detail-panel .ub-contrast-row {
  border-color: transparent;
  background: var(--ub-surface-2);
  box-shadow: none;
}
html.dark .ub-detail-panel .ub-color-chip { background: var(--ub-surface-2); }
html.dark .ub-detail-panel .ub-contrast-row { background: var(--ub-surface-2); }

/* --------------------------------------------------------------------------
   搜索下拉：结果行带分类色图标块 + 分类胶囊，面板去硬边、留白放松
   -------------------------------------------------------------------------- */
.ub-search-panel {
  top: calc(100% + 8px);
  border-color: transparent;
  border-radius: 14px;
  padding: 6px;
  box-shadow: 0 2px 8px rgba(20, 38, 86, .07), 0 18px 40px -18px rgba(20, 38, 86, .38);
}
html.dark .ub-search-panel {
  box-shadow: 0 2px 8px rgba(0, 0, 0, .45), 0 18px 40px -18px rgba(0, 0, 0, .8);
}
.ub-search-item {
  padding: 9px 10px;
  gap: 10px;
  border-radius: 10px;
}
.ub-search-item i {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: hsl(var(--cat-h, 222) 74% 96%);
  color: hsl(var(--cat-h, 222) 56% 42%);
  font-size: 12px;
}
.ub-search-item-name { font-size: 14px; }
.ub-search-item-cat {
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--ub-surface-2);
  font-size: 11.5px;
  line-height: 1.7;
}
html.dark .ub-search-item i { background: hsl(var(--cat-h, 222) 30% 16%); color: hsl(var(--cat-h, 222) 62% 76%); }
.ub-search-foot { padding: 8px 10px; font-size: 12px; }

.ub-search-item[data-cat="text"]  { --cat-h: 222; }
.ub-search-item[data-cat="image"] { --cat-h: 338; }
.ub-search-item[data-cat="design"]{ --cat-h: 266; }
.ub-search-item[data-cat="pdf"]   { --cat-h: 22; }
.ub-search-item[data-cat="file"]  { --cat-h: 38; }
.ub-search-item[data-cat="dev"]   { --cat-h: 192; }
.ub-search-item[data-cat="calc"]  { --cat-h: 164; }
.ub-search-item[data-cat="data"]  { --cat-h: 146; }
.ub-search-item[data-cat="work"]  { --cat-h: 232; }
.ub-search-item[data-cat="edu"]   { --cat-h: 204; }
.ub-search-item[data-cat="life"]  { --cat-h: 10; }
.ub-search-item[data-cat="test"]  { --cat-h: 92; }
.ub-search-item[data-cat="audio"] { --cat-h: 282; }
.ub-search-item[data-cat="video"] { --cat-h: 0; }
.ub-search-item[data-cat="fun"]   { --cat-h: 46; }
.ub-search-item[data-cat="other"] { --cat-h: 218; }

/* 触屏可达性：窄屏下把图标按钮、语言切换、分类导航的可点区域抬到 40px 以上 */
@media (max-width: 860px) {
  .ub-icon-btn { width: 40px; height: 40px; font-size: 14px; }
  .ub-header-actions { gap: 8px; }
  .ub-lang-btn { padding: 10px 10px; font-size: 12.5px; }
  .ub-cat-link { padding: 11px 9px; }
}

/* 阅读正文抬到 15px、行高 1.78：工具介绍/分类引言这类长句更耐读 */
.ub-tool-intro p { font-size: 15px; line-height: 1.78; }
.ub-about-intro { font-size: 15px; line-height: 1.78; }
.ub-tool-row-desc { font-size: 13px; }
.ub-page-desc { font-size: 14.5px; }

/* 「浏览其他分类」标题旁不再显示“15 个其他分类”，标题单独一行 */
.ub-section-count[data-others-count] { display: none; }
/* 「全部工具分类」标题旁不再显示“共 3 个工具 · 16 个分类” */
.ub-section-count[data-total-count] { display: none; }

/* 导航最前的「首页」：用强调色和房形图标跟 16 个分类区分开，一眼能认出来 */
.ub-cat-link.ub-cat-home {
  color: var(--ub-accent);
  font-weight: 600;
  margin-right: 6px;
}
.ub-cat-link.ub-cat-home i { color: var(--ub-accent); }
.ub-cat-link.ub-cat-home:hover {
  background: var(--ub-accent-soft);
  color: var(--ub-accent-hover);
}
.ub-cat-link.ub-cat-home:hover i { color: var(--ub-accent-hover); }
.ub-cat-link.ub-cat-home.is-active { background: var(--ub-accent-soft); }
html.dark .ub-cat-link.ub-cat-home { color: var(--ub-accent); }
html.dark .ub-cat-link.ub-cat-home:hover { background: rgba(127, 157, 255, .16); }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* ------------------------------------------------------------------
 * 新增工具共用组件：统计卡、字段、开关行、换算结果
 * ------------------------------------------------------------------ */
.ub-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.ub-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid hsl(var(--cat-h, 222) 46% 90%);
  border-radius: 11px;
  background: hsl(var(--cat-h, 222) 68% 97.4%);
}
.ub-stat-label { font-size: 12px; color: var(--ub-text-3); }
.ub-stat-value {
  font-size: 20px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
  color: var(--ub-text);
  overflow-wrap: anywhere;
}
html.dark .ub-stat { background: hsl(var(--cat-h, 222) 26% 16%); border-color: hsl(var(--cat-h, 222) 26% 25%); }
html.dark .ub-stat-value { color: #eaf1ff; }

.ub-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.ub-field > label { font-size: 12.5px; font-weight: 600; color: var(--ub-text-2); }
.ub-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  font-size: 13px;
  color: var(--ub-text-2);
  cursor: pointer;
}
.ub-check input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--ub-accent); }
.ub-check-row { display: flex; flex-wrap: wrap; gap: 6px 18px; }

.ub-convert {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  align-items: end;
}
.ub-convert-mid { grid-column: 1 / -1; display: flex; justify-content: center; }
.ub-result {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 10px 14px;
  border: 1px solid hsl(var(--cat-h, 222) 48% 88%);
  border-radius: 11px;
  background: #fff;
  font-size: 24px;
  font-weight: 750;
  letter-spacing: -.02em;
  color: var(--ub-text);
  text-align: center;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.ub-result-label { font-size: 12px; color: var(--ub-text-3); text-align: center; }
html.dark .ub-result { background: hsl(var(--cat-h, 222) 22% 16%); border-color: hsl(var(--cat-h, 222) 24% 26%); }

.ub-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 9px;
  border-radius: 999px;
  background: hsl(var(--cat-h, 222) 72% 93%);
  color: hsl(var(--cat-h, 222) 52% 36%);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}
html.dark .ub-live-badge { background: hsl(var(--cat-h, 222) 32% 24%); color: hsl(var(--cat-h, 222) 60% 80%); }

@media (max-width: 640px) {
  .ub-stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .ub-stat-value { font-size: 17px; }
  .ub-convert { grid-template-columns: minmax(0, 1fr); }
  .ub-result { font-size: 20px; }
}
.ub-result-field { grid-column: 1 / -1; }

/* ------------------------------------------------------------------
 * 顶部菜单响应式：按视口宽度分四档，避免分类导航在中等宽度被截断
 *   1) >=1181px：完整一行
 *   2) 901-1180px：收紧间距，保持一行
 *   3) 641-900px：两行等分排布，全部分类可见
 *   4) <=640px：单行横向滑动 + 吸附，保留淡出提示
 * ------------------------------------------------------------------ */
@media (min-width: 1081px) and (max-width: 1180px) {
  .ub-catnav { gap: 0; }
  .ub-cat-link { padding: 9px 6px; font-size: 12.5px; }
  .ub-search { max-width: 520px; }
}

@media (min-width: 721px) and (max-width: 1080px) {
  /* 两行分类导航让吸顶栏变高，锚点滚动预留相应高度 */
  html { scroll-padding-top: 142px; }
  .ub-catnav {
    flex-wrap: wrap;
    overflow-x: visible;
    row-gap: 0;
    padding: 2px 0;
  }
  .ub-catnav-wrap::before,
  .ub-catnav-wrap::after { display: none; }
  .ub-cat-link {
    justify-content: center;
    padding: 9px 10px;
    font-size: 12.5px;
  }
  .ub-cat-link.is-active::after { left: 8px; right: 8px; }
  .ub-search { max-width: 420px; }
  .ub-header-row { gap: 12px; }
}

@media (max-width: 640px) {
  .ub-catnav {
    gap: 0;
    scroll-snap-type: x proximity;
    scroll-padding-inline: 14px;
  }
  .ub-cat-link {
    scroll-snap-align: start;
    padding: 11px 9px;
    font-size: 12.5px;
  }
  .ub-catnav-wrap::before,
  .ub-catnav-wrap::after { width: 24px; }
  .ub-logo-name { font-size: 15px; }
}

@media (max-width: 400px) {
  .ub-header-row { gap: 6px; }
  .ub-header-actions { gap: 4px; }
  .ub-lang-btn { padding: 4px 6px; font-size: 11.5px; }
  .ub-icon-btn { width: 34px; height: 34px; }
  .ub-cat-link { padding: 10px 8px; font-size: 12px; }
}.ub-to-field { grid-column: 1 / -1; }

/* ------------------------------------------------------------------
 * 首页分类卡：整卡即入口
 * 去掉卡内工具清单与「查看全部」后，卡片本身变成链接，需要恢复文本色、
   焦点环，并给未上线分类一个静态提示，避免空卡没有落点。
 * ------------------------------------------------------------------ */
.ub-cat-card {
  text-decoration: none;
  color: inherit;
}
.ub-cat-card:focus-visible {
  outline: 2px solid var(--ub-accent);
  outline-offset: 2px;
}
html.dark .ub-cat-card-soon {
  background: hsl(var(--cat-h, 222) 28% 24%);
  color: hsl(var(--cat-h, 222) 58% 78%);
}
/* 最近使用：空状态与服务端占位 */
.ub-recent-empty {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  font-size: 13px;
  color: var(--ub-text-3);
}
.ub-recent .ub-quick-list:empty { display: none; }
/* ===================== 移动端分类导航：全部分类入口（第四批覆写） ===================== */
.ub-catnav-all { display: none; }
.ub-recent-empty { margin-right: 2px; }

@media (max-width: 640px) {
  .ub-catnav { padding-right: 86px; }
  .ub-catnav-all {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    height: 30px;
    padding: 0 10px;
    border-radius: 999px;
    background: var(--ub-surface);
    border: 1px solid var(--ub-border-2);
    box-shadow: 0 2px 8px rgba(10, 19, 36, .08);
    color: var(--ub-text-2);
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
    z-index: 3;
  }
  .ub-catnav-all i { color: var(--ub-accent); font-size: 12px; }
  html.dark .ub-catnav-all { box-shadow: 0 2px 8px rgba(0, 0, 0, .35); }
}
/* ===================== 图片压缩：上传区与预览 ===================== */
.ub-file-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.ub-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 132px;
  padding: 18px;
  border: 1.5px dashed var(--ub-border-2);
  border-radius: 14px;
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  text-align: center;
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease;
}
.ub-drop:hover,
.ub-drop.is-over {
  border-color: var(--ub-accent);
  background: var(--ub-accent-soft);
}
.ub-drop i { font-size: 20px; color: var(--ub-accent); }
.ub-drop-title { font-size: 14px; font-weight: 600; color: var(--ub-text); }
.ub-drop-hint { font-size: 12px; color: var(--ub-text-3); }
.ub-two-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.ub-quality-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ub-range {
  flex: 1;
  min-width: 0;
  accent-color: var(--ub-accent);
}
.ub-quality-value {
  min-width: 44px;
  margin-left: 8px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--ub-text-2);
}
.ub-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  padding: 10px;
  border: 1px solid var(--ub-border);
  border-radius: 12px;
  background: var(--ub-surface-2);
  overflow: hidden;
}
.ub-preview img {
  display: block;
  max-width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: 6px;
}
.ub-preview-empty { font-size: 13px; color: var(--ub-text-3); }

@media (max-width: 640px) {
  .ub-two-fields { grid-template-columns: 1fr; }
}
/* 图片压缩：预览图隐藏态与禁用下载按钮 */
.ub-preview img[hidden] { display: none; }
a.ub-btn[aria-disabled="true"] { opacity: .5; pointer-events: none; }
/* ===================== PDF 合并：文件列表 ===================== */
.ub-file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 300px;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
}
.ub-file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--ub-border);
  border-radius: 10px;
  background: var(--ub-surface);
}
.ub-file-order {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 12px;
  font-weight: 600;
  line-height: 24px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.ub-file-meta {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.ub-file-name {
  overflow: hidden;
  font-size: 13px;
  color: var(--ub-text);
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ub-file-sub { font-size: 11px; color: var(--ub-text-3); font-variant-numeric: tabular-nums; }
.ub-file-actions { display: flex; flex: 0 0 auto; gap: 4px; }
.ub-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--ub-text-2);
  font-size: 12px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.ub-icon-btn:hover:not(:disabled) { background: var(--ub-accent-soft); color: var(--ub-accent); }
.ub-icon-btn:disabled { opacity: .32; cursor: not-allowed; }
.ub-file-list-empty { padding: 10px 0; font-size: 13px; color: var(--ub-text-3); }

@media (max-width: 640px) {
  .ub-icon-btn { width: 40px; height: 40px; }
}
/* 工具左右面板按内容高度对齐，避免空白被拉开 */
.ub-tool-grid { align-items: start; }
/* 图片转 PDF：缩略图 */
.ub-file-thumb {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--ub-border);
  border-radius: 8px;
  background: var(--ub-surface-2);
  object-fit: cover;
}
/* ===================== 合规页：关于 / 隐私 ===================== */
.ub-legal {
  max-width: 860px;
  margin: 0 auto 8px;
  padding: 30px 34px 34px;
  border: 1px solid var(--ub-border);
  border-radius: 18px;
  background: var(--ub-surface);
}
.ub-legal h1 {
  margin: 0 0 6px;
  font-size: clamp(24px, 3vw, 30px);
  line-height: 1.3;
  color: var(--ub-text);
}
.ub-legal-meta { margin: 0 0 18px; font-size: 12px; color: var(--ub-text-3); }
.ub-legal-section { margin-top: 26px; }
.ub-legal-section h2 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 650;
  line-height: 1.4;
  color: var(--ub-text);
}
.ub-legal p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ub-text-2);
}
.ub-legal ul {
  margin: 6px 0 12px;
  padding-left: 20px;
  list-style: disc;
}
.ub-legal li {
  margin-bottom: 4px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ub-text-2);
}

@media (max-width: 640px) {
  .ub-legal { padding: 22px 18px 26px; border-radius: 14px; }
  .ub-legal-section h2 { font-size: 16px; }
}
/* ===================== PDF 页面提取：文件信息与页码行 ===================== */
.ub-file-inline {
  padding: 8px 10px;
  border: 1px solid var(--ub-border);
  border-radius: 8px;
  background: var(--ub-surface-2);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ub-text-2);
  overflow-wrap: anywhere;
}
.ub-inline-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ub-inline-row .ub-input { flex: 1; min-width: 0; }
.ub-inline-row .ub-btn { flex: 0 0 auto; white-space: nowrap; }
/* 二维码预览 */
.ub-qr-text{min-height:150px;flex:0 0 auto}
.ub-qr-canvas{display:block;width:100%;max-width:260px;height:auto;margin:0 auto;image-rendering:pixelated;border-radius:6px;background:#fff}

/* 密码生成 */
.ub-pass-out{font-family:ui-monospace,SFMono-Regular,Consolas,'Liberation Mono',monospace;font-size:19px;letter-spacing:.03em;height:52px;padding:0 14px;width:100%}
.ub-pass-track{height:6px;border-radius:999px;background:var(--ub-surface-2);overflow:hidden;margin:10px 0 6px}
.ub-pass-bar{height:100%;width:0;transition:width .18s ease;background:var(--ub-accent)}
.ub-pass-bar.is-weak{background:#d9534f}
.ub-pass-bar.is-fair{background:#c98a1b}
.ub-pass-bar.is-strong{background:#2f9e6b}

/* Markdown 预览 */
.ub-md-tabs{display:flex;gap:6px;margin-bottom:10px}
.ub-md-tab{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);font:inherit;font-size:13px;padding:6px 12px;border-radius:8px;cursor:pointer}
.ub-md-tab.is-active{background:var(--ub-accent-soft);border-color:var(--ub-accent);color:var(--ub-accent)}
.ub-md-body{font-size:14px;line-height:1.7;overflow-wrap:anywhere;width:100%;max-height:380px;overflow:auto;text-align:left}
.ub-md-body h1,.ub-md-body h2,.ub-md-body h3,.ub-md-body h4{margin:1.1em 0 .5em;line-height:1.32}
.ub-md-body h1{font-size:22px}
.ub-md-body h2{font-size:19px}
.ub-md-body h3{font-size:16px}
.ub-md-body p{margin:0 0 .85em}
.ub-md-body ul,.ub-md-body ol{margin:0 0 .85em 1.4em;padding:0}
.ub-md-body li{margin:.2em 0}
.ub-md-body code{font-family:ui-monospace,Consolas,monospace;font-size:.9em;background:var(--ub-surface-2);padding:1px 5px;border-radius:4px}
.ub-md-body pre{background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:8px;padding:12px;overflow:auto}
.ub-md-body pre code{background:none;padding:0}
.ub-md-body blockquote{margin:0 0 .85em;padding:.2em 0 .2em 12px;border-left:2px solid var(--ub-border-2);color:var(--ub-text-2)}
.ub-md-body table{border-collapse:collapse;margin:0 0 .85em;font-size:13px}
.ub-md-body th,.ub-md-body td{border:1px solid var(--ub-border);padding:5px 9px}
.ub-md-body img{max-width:100%;height:auto;border-radius:6px}
.ub-md-body a{color:var(--ub-accent)}
.ub-md-body hr{border:0;border-top:1px solid var(--ub-border);margin:1.2em 0}

/* 文本对比 */
.ub-diff-input{min-height:190px;flex:0 0 auto}
.ub-panel-wide{margin-top:16px}
.ub-diff{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;line-height:1.65;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;padding:10px 0;max-height:420px;overflow:auto}
.ub-diff-row{display:flex;gap:10px;padding:1px 12px;white-space:pre-wrap;overflow-wrap:anywhere}
.ub-diff-row.is-add{background:rgba(47,158,107,.10)}
.ub-diff-row.is-del{background:rgba(217,83,79,.10)}
.ub-diff-mark{flex:0 0 12px;color:var(--ub-text-3);text-align:center}
.ub-diff-row.is-add .ub-diff-mark{color:#2f9e6b}
.ub-diff-row.is-del .ub-diff-mark{color:#d9534f}
.ub-diff-text{flex:1;min-width:0}

/* JSON / YAML 互转：双栏等高、操作行贴底 */
.ub-yaml-grid{align-items:stretch}
.ub-yaml-grid>.ub-panel{display:flex;flex-direction:column}
.ub-yaml-grid .ub-panel-foot{margin-top:auto}
.ub-yaml-grid .ub-status{margin-top:0}

/* 正则测试器 */
.ub-regex-preview-wrap{position:relative;margin:14px 0 0}
.ub-regex-preview{font-family:var(--ub-font-mono,ui-monospace,SFMono-Regular,Consolas,monospace);font-size:13px;line-height:1.65;white-space:pre-wrap;word-break:break-word;min-height:190px;max-height:230px;overflow:auto;padding:12px 14px;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface-2);color:var(--ub-text)}
.ub-regex-preview mark{background:var(--ub-accent-soft);color:var(--ub-accent);border-radius:2px;padding:0 1px;font-weight:600}
.ub-regex-preview-wrap .ub-preview-empty{position:absolute;left:14px;top:12px}

/* JWT 解析器：状态值着色 */
#jwt-state.is-ok{color:#2f9e6b}
#jwt-state.is-error{color:#d9534f}
#jwt-input{min-height:140px;height:140px;white-space:pre-wrap;word-break:break-all}

/* URL 参数解析 */
#query-input{min-height:110px;height:110px;white-space:pre-wrap;word-break:break-all}
.ub-stat-value.is-url{font-size:13px;font-weight:500;word-break:break-all;line-height:1.45}
.ub-query-table-wrap{margin-top:12px;overflow-x:auto}
.ub-query-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:13px}
.ub-query-table th,.ub-query-table td{padding:10px 12px;border-bottom:1px solid var(--ub-border);text-align:left;vertical-align:top}
.ub-query-table thead th{background:var(--ub-surface-2);color:var(--ub-text-3);font-weight:600;font-size:12px}
.ub-query-table thead th:first-child,.ub-query-table td:first-child{width:52px;color:var(--ub-text-3)}
.ub-query-table thead th:nth-child(2),.ub-query-table td:nth-child(2){width:30%}
.ub-query-table td{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;word-break:break-all;color:var(--ub-text)}
.ub-query-table tbody tr:last-child td{border-bottom:none}

/* Cron 解析 */
.ub-cron-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.ub-cron-presets .ub-chip{min-height:32px;padding:5px 12px;cursor:pointer;font-size:13px}
.ub-cron-fields{display:flex;flex-direction:column}
.ub-cron-field{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--ub-border)}
.ub-cron-field:first-child{padding-top:0}
.ub-cron-field:last-child{border-bottom:none;padding-bottom:0}
.ub-cron-field-name{color:var(--ub-text-3);font-size:13px}
.ub-cron-field-raw{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--ub-text);word-break:break-all;text-align:right}
.ub-note{margin:14px 0 0;font-size:12.5px;line-height:1.65;color:var(--ub-text-3)}
.ub-cron-runs{list-style:none;margin:0;padding:0}
.ub-cron-runs li{display:flex;align-items:baseline;gap:14px;padding:11px 0;border-bottom:1px solid var(--ub-border);font-size:13px}
.ub-cron-runs li:first-child{padding-top:0}
.ub-cron-runs li:last-child{border-bottom:none;padding-bottom:0}
.ub-cron-run-index{color:var(--ub-text-3);font-size:12px;min-width:26px}
.ub-cron-runs time{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--ub-text)}

/* 哈希计算 */
#hash-input{min-height:140px;height:140px}
.ub-check-row{margin-top:12px}
.ub-hash-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:13px}
.ub-hash-table th,.ub-hash-table td{padding:11px 12px;border-bottom:1px solid var(--ub-border);text-align:left;vertical-align:middle}
.ub-hash-table thead th{background:var(--ub-surface-2);color:var(--ub-text-3);font-weight:600;font-size:12px}
.ub-hash-table th:first-child,.ub-hash-table td:first-child{width:96px}
.ub-hash-table th:last-child,.ub-hash-table td:last-child{width:76px;text-align:right}
.ub-hash-table td.ub-hash-value{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;word-break:break-all;line-height:1.5;color:var(--ub-text)}
.ub-hash-table td.ub-hash-name{font-weight:600;color:var(--ub-text-2)}
.ub-hash-table tbody tr:last-child td{border-bottom:none}

/* 文本去重排序 */
.ub-dedupe-stats{grid-template-columns:repeat(3,minmax(0,1fr))}

/* 图片加水印 */
.ub-dropzone{display:flex;align-items:center;gap:14px;padding:20px 22px;border:1px dashed var(--ub-border-2);border-radius:10px;background:var(--ub-surface-2);cursor:pointer;transition:border-color .15s,background .15s}
.ub-dropzone:hover,.ub-dropzone:focus-within{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-dropzone i{font-size:24px;color:var(--ub-accent)}
.ub-dropzone-text strong{display:block;font-size:14px;color:var(--ub-text)}
.ub-dropzone-text small{display:block;margin-top:3px;font-size:12.5px;color:var(--ub-text-3)}
.ub-wm-meta{margin-top:10px;font-size:12.5px;color:var(--ub-text-3)}
.ub-wm-value{float:right;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;color:var(--ub-text-3);font-weight:500}
.ub-color{width:72px;height:36px;padding:3px;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface);cursor:pointer}
input[type="range"]{width:100%;accent-color:var(--ub-accent);cursor:pointer}
.ub-wm-canvas-wrap{margin-top:14px;padding:10px;border-radius:8px;background:var(--ub-surface-2);display:flex;justify-content:center;align-items:center;min-height:320px}
.ub-wm-placeholder{flex:1 1 auto;align-self:stretch;min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;border:1px dashed var(--ub-border-2);border-radius:6px;background:var(--ub-surface);color:var(--ub-text-3);font-size:13px}
.ub-wm-placeholder i{font-size:26px;color:var(--ub-text-3)}
#wm-canvas{max-width:100%;height:auto;border-radius:4px;display:block}
#wm-canvas[hidden]{display:none}

/* HTTP 响应头解析 */
.ub-http-stats{grid-template-columns:repeat(4,minmax(0,1fr))}
#http-input{min-height:200px;height:200px;white-space:pre-wrap;word-break:break-all}
.ub-http-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:13px}
.ub-http-table th,.ub-http-table td{padding:10px 12px;border-bottom:1px solid var(--ub-border);text-align:left;vertical-align:top}
.ub-http-table thead th{background:var(--ub-surface-2);color:var(--ub-text-3);font-weight:600;font-size:12px}
.ub-http-table th:first-child,.ub-http-table td:first-child{width:34%}
.ub-http-table td{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;word-break:break-all;line-height:1.5}
.ub-http-table td.ub-http-name{color:var(--ub-text-2);font-weight:600}
.ub-http-table tbody tr:last-child td{border-bottom:none}
.ub-sec-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.ub-sec-item{display:flex;gap:10px;padding:11px 0;border-bottom:1px solid var(--ub-border)}
.ub-sec-item:first-child{padding-top:0}
.ub-sec-item:last-child{border-bottom:none;padding-bottom:0}
.ub-sec-item > i{font-size:14px;margin-top:2px}
.ub-sec-item.is-ok > i{color:var(--ub-ok)}
.ub-sec-item.is-warn > i{color:#c2760a}
.ub-sec-body{display:flex;flex-direction:column;gap:3px;min-width:0}
.ub-sec-name{font-size:13px;font-weight:600;color:var(--ub-text)}
.ub-sec-note{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11.5px;color:var(--ub-text-3);word-break:break-all;line-height:1.5}
.ub-cookie-list{display:flex;flex-direction:column;gap:10px}
.ub-cookie{border:1px solid var(--ub-border);border-radius:8px;padding:11px 12px;background:var(--ub-surface-2)}
.ub-cookie-name{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;font-weight:600;color:var(--ub-text);word-break:break-all}
.ub-cookie-flags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.ub-cookie-chip{font-size:11.5px;padding:2px 8px;border-radius:999px;border:1px solid var(--ub-border-2);color:var(--ub-text-3)}
.ub-cookie-chip.is-on{color:var(--ub-ok);border-color:currentColor;background:var(--ub-ok-soft)}
.ub-cookie-chip.is-off{opacity:.65}
.ub-cookie-value{margin-top:8px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11.5px;color:var(--ub-text-3);word-break:break-all}
.ub-cookie-empty{font-size:13px;color:var(--ub-text-3)}

/* 图片 Base64 转换 */
#b64-output{min-height:150px;height:150px;white-space:pre-wrap;word-break:break-all}
#b64-input{min-height:130px;height:130px;white-space:pre-wrap;word-break:break-all}
.ub-b64-preview{margin-top:14px;padding:10px;border-radius:8px;background:var(--ub-surface-2);min-height:220px;display:flex;align-items:center;justify-content:center}
#b64-preview{max-width:100%;max-height:260px;border-radius:4px}
#b64-preview[hidden]{display:none}
.ub-b64-preview .ub-preview-empty{display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--ub-text-3);font-size:13px}
.ub-b64-preview .ub-preview-empty i{font-size:26px}

/* 图片裁剪 */
.ub-crop-stage{margin-top:14px;padding:10px;border-radius:8px;background:var(--ub-surface-2);display:flex;justify-content:center;align-items:center;min-height:320px}
.ub-crop-stage .ub-wm-placeholder{width:100%}
#crop-empty[hidden]{display:none}
#crop-canvas{max-width:100%;height:auto;display:block;touch-action:none;cursor:crosshair;border-radius:4px}
#crop-canvas[hidden]{display:none}
.ub-crop-toolbar{display:flex;flex-wrap:wrap;gap:16px 20px;align-items:flex-end;margin-top:16px}
.ub-field-inline{display:flex;flex-direction:column;gap:6px;font-size:12.5px;font-weight:600;color:var(--ub-text-3)}
.ub-field-inline .ub-select{min-width:132px}
.ub-crop-quality{flex-direction:row;align-items:center;gap:10px;padding-bottom:7px}
.ub-crop-quality input[type="range"]{width:112px;padding:0}
#crop-quality-row[hidden]{display:none}
.ub-crop-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:16px}

/* JSON 转 TypeScript */
#jts-input{height:250px;min-height:250px;white-space:pre-wrap;word-break:break-all}
#jts-output{height:320px;min-height:320px;white-space:pre;word-break:normal;overflow:auto}
.ub-jts-opts{display:grid;grid-template-columns:1fr 1fr;gap:12px 14px;margin-top:14px}
.ub-jts-checks{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:16px}
.ub-jts-opts .ub-input,.ub-jts-opts .ub-select{width:100%}

/* CSS 压缩与美化 */
#css-input,#css-output{height:300px;min-height:300px}
#css-output{white-space:pre;overflow:auto}
.ub-css-opts{display:flex;flex-wrap:wrap;gap:16px 20px;align-items:flex-end;margin-top:14px}
.ub-css-keep{padding-bottom:9px}
.ub-css-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:16px}

/* JSON 转 Zod Schema */
#zod-input{height:250px;min-height:250px;white-space:pre-wrap;word-break:break-all}
#zod-output{height:340px;min-height:340px;white-space:pre;overflow:auto}
.ub-zod-opts{margin-top:14px}
.ub-zod-checks{display:flex;flex-wrap:wrap;gap:16px;margin-top:12px}

/* cURL 转代码 */
#curl-input{height:250px;min-height:250px;white-space:pre-wrap;word-break:break-all}
#curl-output{height:340px;min-height:340px;white-space:pre;overflow:auto}
.ub-curl-opts{margin-top:14px}
.ub-curl-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:16px}

/* Meta 标签生成 */
.ub-meta-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 16px;padding:16px;margin-bottom:14px;background:var(--ub-surface);border:1px solid var(--ub-border);border-radius:var(--ub-r-lg)}
.ub-meta-label{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.ub-meta-count{font-size:12px;font-weight:400;color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-meta-count.is-over{color:#c0392b}
html.dark .ub-meta-count.is-over{color:#ff8f85}
.ub-meta-desc{height:66px;min-height:66px;resize:none}
.ub-meta-wide{grid-column:1/-1}
.ub-meta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;align-items:start}
.ub-meta-grid > .ub-panel{margin-bottom:0;height:100%}
#meta-output{height:420px;min-height:420px;white-space:pre;overflow:auto}
.ub-meta-previews{display:flex;flex-direction:column;gap:16px}
.ub-meta-preview-block{display:flex;flex-direction:column;gap:7px}
.ub-meta-preview-label{font-size:12px;color:var(--ub-text-3);letter-spacing:.02em}
.ub-meta-serp{display:flex;flex-direction:column;gap:3px;padding:14px;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px}
.ub-meta-serp-url{font-size:12px;color:#157f3d;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
html.dark .ub-meta-serp-url{color:#4ecb7d}
.ub-meta-serp-title{font-size:17px;font-weight:500;line-height:1.35;color:#1a0dab;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
html.dark .ub-meta-serp-title{color:#8ab4f8}
.ub-meta-serp-desc{font-size:13px;line-height:1.6;color:var(--ub-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ub-meta-soc{display:flex;flex-direction:column;overflow:hidden;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px}
.ub-meta-soc-media{position:relative;aspect-ratio:1.91/1;display:flex;align-items:center;justify-content:center;background:#dfe7f5;overflow:hidden}
html.dark .ub-meta-soc-media{background:#1b2740}
.ub-meta-soc-img{display:block;width:100%;height:100%;object-fit:cover}
#soc-img[hidden]{display:none}
.ub-meta-soc-empty{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ub-text-3)}
#soc-empty[hidden]{display:none}
.ub-meta-soc-body{display:flex;flex-direction:column;gap:3px;padding:10px 12px;border-top:1px solid var(--ub-border)}
.ub-meta-soc-site{font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--ub-text-3)}
.ub-meta-soc-title{font-size:15px;font-weight:600;line-height:1.35;color:var(--ub-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ub-meta-soc-desc{font-size:12px;line-height:1.5;color:var(--ub-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ub-meta-soc-host{font-size:11px;color:var(--ub-text-3)}
@media (max-width:900px){.ub-meta-form{grid-template-columns:1fr}.ub-meta-grid{grid-template-columns:1fr}}

/* robots.txt 生成 */
.ub-robots-fields{display:flex;flex-direction:column;gap:12px}
.ub-robots-paths{height:88px;min-height:88px}
#robots-allow-row[hidden]{display:none}
#robots-disallow-row[hidden]{display:none}
#robots-output{height:360px;min-height:360px;white-space:pre;overflow:auto}
.ub-robots-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:16px}

/* 全角半角转换 */
#fw-input{height:240px;min-height:240px}
#fw-output{height:300px;min-height:300px}
.ub-fw-opts{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px 16px;margin-top:14px}
.ub-fw-opts .ub-field-group{flex:1 1 220px}
.ub-fw-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:14px}

/* JSON 转 SQL */
#jts-input{height:230px;min-height:230px;white-space:pre-wrap;word-break:break-all}
#jts-output{height:330px;min-height:330px;white-space:pre;overflow:auto}
.ub-jsq-opts{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;margin-top:14px}
.ub-jsq-check{margin-top:12px}
.ub-jsq-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:14px}

/* 图片取色 / 调色板 */
#pal-preview[hidden]{display:none}
#pal-empty[hidden]{display:none}
#pal-canvas{display:block;width:100%;height:auto;border-radius:10px;cursor:crosshair;background:transparent}
.ub-pal-hint{display:flex;align-items:flex-start;gap:7px;margin:11px 0 0;font-size:12px;line-height:1.55;color:var(--ub-text-3)}
.ub-pal-hint i{margin-top:2px;color:var(--ub-accent)}
.ub-pal-picked{display:flex;align-items:center;gap:12px;margin-top:12px;padding-top:12px;border-top:1px dashed var(--ub-border)}
.ub-pal-picked-chip{flex:0 0 auto;width:42px;height:42px;border-radius:10px;border:1px solid var(--ub-border-2);background:transparent}
.ub-pal-picked-meta{display:flex;flex-direction:column;gap:2px;min-width:0}
.ub-pal-picked-hex{font-size:14px;font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.ub-pal-picked-rgb{font-size:12px;color:var(--ub-text-3)}
.ub-pal-reset{margin-left:auto}
.ub-pal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;align-content:start;min-height:190px}
.ub-pal-grid.is-empty{place-items:center;border:1px dashed var(--ub-border-2);border-radius:12px;font-size:13px;color:var(--ub-text-3);text-align:center;padding:20px}
.ub-pal-swatch{display:flex;flex-direction:column;gap:6px;padding:0;border:0;background:transparent;text-align:left;cursor:pointer;border-radius:10px}
.ub-pal-swatch:focus-visible{outline:2px solid var(--ub-accent);outline-offset:3px}
.ub-pal-chip{display:block;height:64px;border-radius:10px;border:1px solid rgba(10,19,36,.12);box-shadow:inset 0 0 0 1px rgba(255,255,255,.06)}
.ub-pal-swatch:hover .ub-pal-chip{border-color:var(--ub-accent)}
.ub-pal-hex{font-size:12px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-pal-pct{font-size:11px;color:var(--ub-text-3)}
.ub-pal-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:16px}

/* SVG 转 PNG */
.ub-svg-upload{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface-2);font-size:12px;color:var(--ub-text-2);cursor:pointer}
.ub-svg-upload:hover{border-color:var(--ub-accent);color:var(--ub-accent)}
#svg-input{min-height:210px}
.ub-svg-opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px}
.ub-svg-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:14px}
.ub-svg-preview{min-height:260px;overflow:auto}
#svg-canvas{display:block;max-width:100%;height:auto;max-height:440px;margin:0 auto}
#svg-canvas[hidden]{display:none}
#svg-empty[hidden]{display:none}

/* JSON 转 CSV */
#jc-input{min-height:220px}
#jc-output{min-height:300px}
.ub-jc-opts{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:12px}
.ub-jc-opts .ub-field-group{flex:0 1 260px}
.ub-jc-bom{flex:0 1 auto}
.ub-jc-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:14px}

/* SQL 格式化 */
#sf-input{min-height:240px}
#sf-output{min-height:340px}
.ub-sf-opts{margin-top:12px}
.ub-sf-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:14px}

/* URL Slug 生成 */
.ub-slug-base{margin-top:12px}
.ub-slug-opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px}
.ub-slug-checks{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:12px}
.ub-slug-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:14px}
.is-slug{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}
.ub-slug-url-box{display:flex;flex-direction:column;gap:4px;margin-top:12px;padding:10px 12px;border:1px dashed var(--ub-border-2);border-radius:10px;background:var(--ub-surface-2)}
.ub-slug-url-label{font-size:11px;color:var(--ub-text-3)}
.ub-slug-url{font-size:12px;color:var(--ub-text-2);word-break:break-all;line-height:1.55}

/* 进制转换 */
.ub-base-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.ub-base-row{display:grid;grid-template-columns:88px minmax(0,1fr) 32px;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-base-row.is-extra{border-style:dashed}
.ub-base-name{font-size:12px;color:var(--ub-text-3)}
.ub-base-val{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.6;color:var(--ub-text);word-break:break-all;white-space:normal}
.ub-base-val.is-empty,.ub-base-val:empty{color:var(--ub-text-3)}
.ub-icon-btn{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface);color:var(--ub-text-2);cursor:pointer;transition:color .18s,border-color .18s}
.ub-icon-btn:hover:not(:disabled){color:var(--ub-accent);border-color:var(--ub-accent)}
.ub-icon-btn:disabled{opacity:.45;cursor:not-allowed}

/* 世界时区转换 */
.ub-tz-wrap{display:flex;flex-direction:column;gap:16px}
.ub-tz-controls{display:grid;grid-template-columns:1.05fr 1.25fr auto;gap:12px;align-items:end}
.ub-tz-controls-action{padding-bottom:2px}
.ub-tz-summary{display:flex;flex-wrap:wrap;align-items:flex-start;gap:12px 28px;margin-top:14px;padding:11px 14px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-tz-summary-utc{display:flex;flex-direction:column;gap:3px;min-width:150px}
.ub-tz-summary-utc span{font-size:11px;color:var(--ub-text-3)}
.ub-tz-summary-utc strong{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;font-weight:600;color:var(--ub-text);line-height:1.5}
.ub-tz-diff-line{display:flex;flex-direction:column;gap:3px}
.ub-tz-diff-line>span{font-size:11px;color:var(--ub-text-3)}
#tz-diff{font-size:12px;color:var(--ub-text-2);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-tz-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.ub-tz-row{display:flex;flex-direction:column;gap:6px;padding:12px 14px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-tz-top{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.ub-tz-city{display:flex;align-items:center;gap:6px;min-width:0}
.ub-tz-name{font-size:13px;color:var(--ub-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ub-tz-tag{flex:none;font-size:10px;padding:1px 5px;border-radius:5px;color:var(--ub-accent);background:var(--ub-accent-soft);border:1px solid var(--ub-accent-soft)}
.ub-tz-time{display:flex;align-items:center;gap:5px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:16px;font-weight:600;color:var(--ub-text);letter-spacing:.02em}
.ub-tz-badge{font-family:inherit;font-size:10px;font-weight:500;padding:1px 4px;border-radius:4px;letter-spacing:0}
.ub-tz-badge.is-next{color:var(--ub-ok);background:rgba(21,127,61,.1)}
.ub-tz-badge.is-prev{color:#a3541f;background:rgba(163,84,31,.1)}
.ub-tz-sub{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:11.5px;color:var(--ub-text-3)}
.ub-tz-sub .ub-tz-offset{font-size:11px;color:var(--ub-text-3);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
/* 九宫格切图 */
.ub-gridtile-grid{display:grid;grid-template-columns:1fr 1.06fr;gap:16px;align-items:stretch}
.ub-gridtile-grid > .ub-panel{display:flex;flex-direction:column;min-width:0}
.ub-gridtile-drop{display:flex;flex:1;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:240px;border:1px dashed var(--ub-border-2);border-radius:12px;background:var(--ub-surface-2);color:var(--ub-text-3);cursor:pointer;text-align:center;padding:20px}
.ub-gridtile-drop i{font-size:22px}
.ub-gridtile-drop strong{font-size:14px;color:var(--ub-text)}
.ub-gridtile-drop span{font-size:12px;line-height:1.6;max-width:280px}
.ub-gridtile-drop:hover{border-color:var(--ub-accent);color:var(--ub-accent)}
.ub-gridtile-source{display:none;width:100%;flex:1;min-height:240px;max-height:none;object-fit:contain;border-radius:12px;border:1px solid var(--ub-border);background:var(--ub-surface-2)}
.ub-gridtile-pick{margin-top:12px}
.ub-gridtile-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-gridtile-controls{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:end}
.ub-gridtile-controls .ub-btn{height:38px}
.ub-grid-tiles{display:grid;gap:8px;margin-top:14px}
.ub-grid-tiles.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.ub-grid-tiles.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-grid-tiles.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.ub-grid-tile{display:flex;flex-direction:column;gap:4px;border:1px solid var(--ub-border);border-radius:8px;overflow:hidden;background:var(--ub-surface-2)}
.ub-grid-tile img{display:block;width:100%;aspect-ratio:1 / 1;object-fit:cover}
.ub-grid-tile-dl{display:flex;align-items:center;justify-content:center;gap:5px;width:100%;border:0;border-top:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);font-size:11.5px;padding:5px 4px;cursor:pointer}
.ub-grid-tile-dl:hover{color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-grid-tiles.is-empty{display:flex;align-items:center;justify-content:center;min-height:236px;border:1px dashed var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-grid-empty{font-size:12.5px;color:var(--ub-text-3)}
@media (max-width:860px){
  .ub-gridtile-grid{grid-template-columns:1fr}
  .ub-gridtile-drop{min-height:180px}
}
/* 文本排序 */
.ub-sort-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch}
.ub-sort-grid > .ub-panel{display:flex;flex-direction:column;min-width:0}
.ub-textarea.ub-sort-text{flex:1;min-height:300px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.7}
.ub-sort-opts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.ub-sort-checks{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:10px}
.ub-sort-actions{margin-top:12px}
.ub-sort-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-sort-grid .ub-status{margin-top:10px}
@media (max-width:860px){
  .ub-sort-grid{grid-template-columns:1fr}
  .ub-textarea.ub-sort-text{min-height:220px}
}
/* 阴影生成器 */
.ub-sh-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:16px;align-items:stretch}
.ub-sh-grid > .ub-panel{display:flex;flex-direction:column;min-width:0}
.ub-sh-stage{display:flex;align-items:center;justify-content:center;flex:1;min-height:260px;border-radius:12px;background:var(--ub-surface-2);border:1px solid var(--ub-border);margin-bottom:14px}
.ub-sh-demo{width:210px;height:130px;border-radius:14px;background:var(--ub-surface);border:1px solid var(--ub-border);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--ub-text-3)}
.ub-sh-presets-label{display:block;font-size:11px;color:var(--ub-text-3);margin-bottom:6px}
.ub-sh-presets{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.ub-sh-layers{display:flex;flex-direction:column;gap:10px}
.ub-sh-layer{border:1px solid var(--ub-border);border-radius:10px;padding:10px;background:var(--ub-surface-2)}
.ub-sh-layer-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}
.ub-sh-layer-no{font-size:11.5px;color:var(--ub-text-3);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-sh-inset{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--ub-text-2)}
.ub-sh-remove{border:0;background:none;color:var(--ub-text-3);cursor:pointer;padding:2px 4px;font-size:12px}
.ub-sh-remove:hover{color:var(--ub-accent)}
.ub-sh-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.ub-sh-f{display:flex;flex-direction:column;gap:4px;min-width:0}
.ub-sh-f span{font-size:11px;color:var(--ub-text-3)}
.ub-sh-f input{padding:6px 8px;border:1px solid var(--ub-border);border-radius:7px;background:var(--ub-surface);color:var(--ub-text);font-size:12.5px;min-width:0}
.ub-sh-f-color input{height:32px;padding:2px}
.ub-sh-add-row{margin-top:10px}
.ub-sh-css-wrap{margin-top:12px}
.ub-textarea.ub-sh-css{min-height:66px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.6}
.ub-sh-copy-row{margin-top:10px;margin-left:auto}
@media (max-width:860px){
  .ub-sh-grid{grid-template-columns:1fr}
  .ub-sh-stage{min-height:220px}
  .ub-sh-demo{width:180px;height:112px}
}
/* BMI 与基础代谢 */
.ub-bmi-form{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.ub-bmi-result{margin-top:16px;padding-top:16px;border-top:1px solid var(--ub-border)}
.ub-bmi-hero{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.ub-bmi-hero-label{font-size:12px;letter-spacing:.06em;color:var(--ub-text-3)}
.ub-bmi-hero-value{font-size:40px;line-height:1;font-weight:650;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-bmi-badge{font-size:12px;padding:4px 10px;border-radius:999px;background:var(--ub-surface-2);border:1px solid var(--ub-border);color:var(--ub-text-2)}
.ub-bmi-badge.is-under{color:#1b6f9c;border-color:#b6d8e8;background:#eef7fc}
.ub-bmi-badge.is-normal{color:var(--ub-ok);border-color:#bfe3cd;background:#eefaf2}
.ub-bmi-badge.is-over{color:#9a6512;border-color:#eed6a8;background:#fdf6e8}
.ub-bmi-badge.is-obese{color:#a33a3a;border-color:#eec4c4;background:#fdf0f0}
.ub-bmi-stats{margin-top:14px;grid-template-columns:repeat(4,minmax(0,1fr))}
.ub-bmi-form .ub-input,.ub-bmi-form .ub-select{font-size:13px}
@media (max-width:960px){
  .ub-bmi-form{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:640px){
  .ub-bmi-form{grid-template-columns:1fr 1fr}
  .ub-bmi-form .ub-field-group:last-child{grid-column:span 2}
  .ub-bmi-stats{grid-template-columns:1fr 1fr}
  .ub-bmi-hero-value{font-size:34px}
}
/* 测试数据生成 */
.ub-mock-grid{display:grid;grid-template-columns:1fr 1.12fr;gap:16px;align-items:stretch}
.ub-mock-grid > .ub-panel{display:flex;flex-direction:column;min-width:0}
.ub-mock-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;margin-top:2px}
.ub-mock-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.ub-mock-row .ub-input,.ub-mock-row .ub-select{height:38px}
.ub-mock-actions{margin-top:12px}
.ub-textarea.ub-mock-text{flex:1;min-height:300px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.65}
.ub-mock-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-mock-grid .ub-status{margin-top:12px}
@media (max-width:860px){
  .ub-mock-grid{grid-template-columns:1fr}
  .ub-textarea.ub-mock-text{min-height:220px}
}
/* 文件名整理 */
.ub-fn-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch}
.ub-fn-grid > .ub-panel{display:flex;flex-direction:column;min-width:0}
.ub-textarea.ub-fn-text{flex:1;min-height:260px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.7}
.ub-fn-opts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.ub-fn-opts-four{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:10px}
.ub-fn-actions{margin-top:12px}
.ub-fn-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-fn-grid .ub-status{margin-top:10px}
.ub-fn-grid .ub-note{margin-top:8px}
@media (max-width:860px){
  .ub-fn-grid{grid-template-columns:1fr}
  .ub-textarea.ub-fn-text{min-height:200px}
  .ub-fn-opts-four{grid-template-columns:1fr 1fr}
}
/* 加班费计算 */
.ub-ot-form{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.ub-ot-stats{margin-top:14px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-ot-breakdown{margin-top:12px;border:1px solid var(--ub-border);border-radius:10px;overflow:hidden}
.ub-ot-row{display:grid;grid-template-columns:minmax(0,1.6fr) 56px 64px minmax(0,.9fr);gap:8px;align-items:center;padding:9px 12px;font-size:12.5px;border-top:1px solid var(--ub-border)}
.ub-ot-row:first-child{border-top:0}
.ub-ot-name{color:var(--ub-text)}
.ub-ot-rate{color:var(--ub-text-3);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11.5px}
.ub-ot-hours{color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-ot-amount{text-align:right;font-variant-numeric:tabular-nums;color:var(--ub-text)}
@media (max-width:860px){
  .ub-ot-form{grid-template-columns:1fr 1fr}
  .ub-ot-stats{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:560px){
  .ub-ot-row{grid-template-columns:minmax(0,1.4fr) 44px 52px minmax(0,.9fr);font-size:12px;padding:8px 10px}
}
/* 字幕时间轴偏移 */
.ub-sub-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch}
.ub-sub-grid > .ub-panel{display:flex;flex-direction:column;min-width:0}
.ub-textarea.ub-sub-text{flex:1;min-height:300px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.65}
.ub-sub-opts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.ub-sub-actions{margin-top:12px}
.ub-sub-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-sub-grid .ub-status{margin-top:10px}
@media (max-width:860px){
  .ub-sub-grid{grid-template-columns:1fr}
  .ub-textarea.ub-sub-text{min-height:200px}
}
/* 金额大写转换 */
.ub-rmb-amount{font-size:16px;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.ub-rmb-samples{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:10px}
.ub-rmb-samples-label{font-size:12px;color:var(--ub-text-3)}
.ub-chip-btn{border:1px solid var(--ub-border);background:var(--ub-surface-2);color:var(--ub-text-2);border-radius:999px;padding:4px 12px;font-size:12px;cursor:pointer;min-height:28px}
.ub-chip-btn:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-rmb-out-wrap{margin-top:14px}
.ub-rmb-out{position:relative}
.ub-rmb-out-text{min-height:96px;font-size:17px;line-height:1.8;letter-spacing:.04em;color:var(--ub-text);padding-right:112px}
.ub-rmb-copy{position:absolute;right:10px;top:10px;min-height:32px;padding:0 10px;font-size:12px}
.ub-rmb-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:560px){
  .ub-rmb-out-text{padding-right:14px;padding-bottom:46px}
  .ub-rmb-copy{position:static;margin-top:8px;width:100%}
}
/* 分数计算器 */
.ub-fc-calc{display:grid;grid-template-columns:minmax(0,1fr) 92px minmax(0,1fr);gap:12px;align-items:center}
.ub-fc-operand{display:flex;flex-direction:column;gap:6px;min-width:0}
.ub-fc-cap{font-size:12px;color:var(--ub-text-3)}
.ub-fc-cell{display:flex;align-items:center;gap:8px}
.ub-fc-mini{font-size:11.5px;color:var(--ub-text-3);min-width:28px}
.ub-input.ub-fc-input{height:38px;font-size:15px;font-variant-numeric:tabular-nums}
.ub-fc-bar{height:1px;background:var(--ub-border-2);margin:0 0 0 36px}
.ub-fc-op{margin:0}
.ub-fc-op .ub-select{height:38px}
.ub-fc-eq{font-size:22px;color:var(--ub-text-3);text-align:center}
.ub-fc-samples{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:14px}
.ub-fc-samples-label{font-size:12px;color:var(--ub-text-3)}
.ub-fc-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:14px}
.ub-fc-result{display:flex;flex-direction:column;gap:4px;padding:11px 13px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-fc-result-label{font-size:11.5px;color:var(--ub-text-3)}
.ub-fc-result-value{font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.ub-fc-steps-wrap{margin-top:12px}
.ub-fc-steps-title{font-size:11.5px;color:var(--ub-text-3)}
.ub-fc-steps{margin-top:6px;border:1px solid var(--ub-border);border-radius:10px;overflow:hidden}
.ub-fc-step{display:flex;gap:12px;padding:8px 12px;font-size:12.5px;border-top:1px solid var(--ub-border)}
.ub-fc-step:first-child{border-top:0}
.ub-fc-step-k{color:var(--ub-text-3);min-width:52px}
.ub-fc-step-v{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--ub-text)}
@media (max-width:860px){
  .ub-fc-calc{grid-template-columns:minmax(0,1fr) 64px minmax(0,1fr);row-gap:10px}
}
@media (max-width:560px){
  .ub-fc-calc{grid-template-columns:1fr;gap:10px}
  .ub-fc-op{max-width:140px}
  .ub-fc-results{grid-template-columns:1fr}
  .ub-fc-result{flex-direction:row;justify-content:space-between;align-items:center}
}
/* 睡眠周期计算 */
.ub-sl-form{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:12px}
.ub-sl-cycles-wrap{margin-top:14px}
.ub-sl-cycles{display:flex;gap:10px;margin-top:6px}
.ub-sl-check{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 14px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);font-size:13px;cursor:pointer}
.ub-sl-check input{width:16px;height:16px;accent-color:var(--ub-accent)}
.ub-sl-check:has(input:checked){border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-sl-results-wrap{margin-top:14px}
.ub-sl-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:6px}
.ub-sl-row{padding:14px 16px;border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2)}
.ub-sl-time{font-size:28px;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.ub-sl-meta{display:flex;gap:10px;margin-top:4px;font-size:11.5px;color:var(--ub-text-3)}
.ub-sl-hint{margin:10px 0 0;font-size:12px;color:var(--ub-text-3)}
@media (max-width:860px){
  .ub-sl-form{grid-template-columns:1fr 1fr}
  .ub-sl-form > :first-child{grid-column:span 2}
  .ub-sl-results{grid-template-columns:1fr}
  .ub-sl-row{display:flex;align-items:baseline;justify-content:space-between}
}
@media (max-width:560px){
  .ub-sl-form{grid-template-columns:1fr}
  .ub-sl-form > :first-child{grid-column:auto}
}
/* 颜色对比度检查 */
.ub-ct-colors{display:grid;grid-template-columns:1fr;gap:12px}
.ub-ct-row{display:flex;gap:8px;align-items:center}
.ub-ct-swatch{width:44px;height:38px;padding:2px;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface);cursor:pointer;flex:none}
.ub-ct-hex{flex:1;min-width:0;height:38px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-ct-hex.is-invalid{border-color:#c2410c}
.ub-ct-swap{margin-top:12px;width:100%;justify-content:center}
.ub-ct-samples{margin-top:12px}
.ub-ct-ratio{font-size:40px;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.ub-ct-preview{margin-top:12px;border:1px solid var(--ub-border);border-radius:10px;padding:14px 16px}
.ub-ct-pre-line{margin:0;font-size:16px}
.ub-ct-hint{margin:10px 0 0;font-size:12px;color:var(--ub-text-3)}
.ub-ct-checks{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:14px}
.ub-ct-badge{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 11px;border:1px solid var(--ub-border);border-radius:8px;font-size:12px;color:var(--ub-text-2);background:var(--ub-surface-2)}
.ub-ct-badge.is-pass{border-color:#b7e0c4;background:#effaf2;color:#14532d}
.ub-ct-badge.is-fail{border-color:#f2c9c0;background:#fdf1ee;color:#7c2d12}
.ub-ct-badge-mark{font-size:11.5px;font-weight:600;flex:none}
.ub-ct-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;align-items:start}
html.dark .ub-ct-badge.is-pass{background:#0f2a1b;border-color:#205c3a;color:#9ce3b8}
html.dark .ub-ct-badge.is-fail{background:#2c1712;border-color:#6b3427;color:#f6b39f}
@media (max-width:860px){
  .ub-ct-top{grid-template-columns:1fr}
  .ub-ct-checks{grid-template-columns:1fr 1fr}
  .ub-ct-checks > :last-child{grid-column:span 2}
}
/* JSON 扁平化 */
.ub-fl-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch}
.ub-fl-grid > .ub-panel{display:flex;flex-direction:column;min-width:0}
.ub-textarea.ub-fl-text{flex:1;min-height:280px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.6}
.ub-fl-opts{display:grid;grid-template-columns:minmax(0,1.4fr) 84px auto;gap:10px;align-items:end;margin-top:12px}
.ub-fl-check{display:inline-flex;align-items:center;gap:7px;min-height:38px;font-size:12px;color:var(--ub-text-2)}
.ub-fl-check input{width:15px;height:15px;accent-color:var(--ub-accent)}
.ub-fl-actions{margin-top:12px}
.ub-fl-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){
  .ub-fl-grid{grid-template-columns:1fr}
  .ub-textarea.ub-fl-text{min-height:200px}
  .ub-fl-opts{grid-template-columns:1fr 1fr}
  .ub-fl-check{grid-column:span 2}
}
/* 随机数生成器 */
.ub-rd-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.ub-rd-unique-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:12px}
.ub-rd-run{min-width:140px}
.ub-rd-out-wrap{margin-top:12px}
.ub-textarea.ub-rd-out{min-height:150px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.7;font-variant-numeric:tabular-nums}
.ub-rd-stats{margin-top:12px;grid-template-columns:repeat(4,minmax(0,1fr))}
.ub-rd-form input:disabled{background:var(--ub-surface-2);color:var(--ub-text-3);cursor:not-allowed}
@media (max-width:860px){
  .ub-rd-form{grid-template-columns:1fr 1fr}
  .ub-rd-stats{grid-template-columns:1fr 1fr}
}
/* 年龄计算器 */
.ub-ag-form{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end}
.ub-ag-actions{display:flex;gap:8px}
.ub-ag-results{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:14px}
.ub-ag-results .ub-ag-big{grid-column:span 4}
.ub-ag-results .ub-stat-value{font-variant-numeric:tabular-nums}
.ub-ag-big .ub-stat-value{font-size:26px;letter-spacing:-.4px}
@media (max-width:760px){
  .ub-ag-form{grid-template-columns:1fr 1fr}
  .ub-ag-actions{grid-column:span 2}
  .ub-ag-results{grid-template-columns:1fr 1fr}
  .ub-ag-results .ub-ag-big{grid-column:span 2}
}
/* 音频时长与码率 */
.ub-au-pick{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.ub-au-pick .ub-btn[hidden]{display:none}
.ub-file-drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;flex:1;min-height:150px;padding:24px;border:1px dashed var(--ub-border-2);border-radius:10px;background:var(--ub-surface-2);cursor:pointer;text-align:center;transition:border-color .18s,background .18s}
.ub-file-drop:hover{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-file-drop i{font-size:20px;color:var(--ub-text-3)}
.ub-file-drop span[data-i18n]{font-size:13px;font-weight:600;color:var(--ub-text)}
.ub-file-hint{font-size:11.5px;color:var(--ub-text-3);letter-spacing:.02em}
.ub-file-drop input{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
.ub-au-meta{margin-top:14px}
.ub-au-file{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;padding-bottom:10px;border-bottom:1px solid var(--ub-border)}
.ub-au-name{font-size:13px;font-weight:600;color:var(--ub-text);word-break:break-all}
.ub-au-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:760px){
  .ub-au-pick{flex-direction:column;align-items:stretch}
  .ub-file-drop{min-height:120px}
  .ub-au-pick .ub-btn{align-self:flex-end;width:auto}
}
/* PDF 信息与尺寸 */
.ub-pi-title{font-size:12px;color:var(--ub-text-3);word-break:break-word}
.ub-pi-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-pi-list{margin-top:16px}
.ub-pi-list-title{font-size:12px;font-weight:600;color:var(--ub-text-2);margin:0 0 8px;letter-spacing:.02em}
.ub-pi-table-wrap{max-height:280px;overflow:auto;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface)}
.ub-pi-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:12.5px}
.ub-pi-table th,.ub-pi-table td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--ub-border);font-variant-numeric:tabular-nums}
.ub-pi-table th{position:sticky;top:0;background:var(--ub-surface-2);color:var(--ub-text-2);font-weight:600;font-size:12px}
.ub-pi-table th:first-child,.ub-pi-table td:first-child{width:70px}
.ub-pi-table th:last-child,.ub-pi-table td:last-child{width:90px}
.ub-pi-table tbody tr:last-child td{border-bottom:none}
@media (max-width:760px){
  .ub-pi-stats{grid-template-columns:1fr 1fr}
  .ub-pi-stats .ub-stat:last-child{grid-column:span 2}
}
/* 统计量计算器 */
.ub-st-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:20px;align-items:start}
.ub-st-left{display:flex;flex-direction:column;min-width:0}
.ub-st-input-wrap{flex:1}
.ub-textarea.ub-st-input{min-height:260px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.75}
.ub-st-actions{display:flex;gap:8px;margin-top:10px}
.ub-st-cards{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:0}
.ub-st-cards .ub-stat-value{font-variant-numeric:tabular-nums;font-size:18px}
@media (max-width:900px){
  .ub-st-grid{grid-template-columns:1fr}
  .ub-textarea.ub-st-input{min-height:150px}
  .ub-st-cards{grid-template-columns:1fr 1fr;margin-top:14px}
}
/* 中文数字互转 */
.ub-cn-form{display:grid;grid-template-columns:200px minmax(0,1fr);gap:12px;align-items:end}
.ub-cn-input{font-variant-numeric:tabular-nums}
.ub-cn-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.ub-cn-result{margin-top:16px}
.ub-cn-out-box{margin-top:8px;padding:18px 20px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);min-height:66px;display:flex;align-items:center}
.ub-cn-out{font-size:22px;font-weight:600;letter-spacing:.02em;color:var(--ub-text);word-break:break-all;font-variant-numeric:tabular-nums}
@media (max-width:760px){
  .ub-cn-form{grid-template-columns:1fr}
  .ub-cn-out{font-size:18px}
}
/* 统一社会信用代码校验 */
.ub-cc-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:20px;align-items:start}
.ub-cc-left{display:flex;flex-direction:column;min-width:0}
.ub-textarea.ub-cc-input{min-height:180px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.9;letter-spacing:.04em}
.ub-cc-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.ub-cc-stats{margin-top:12px;grid-template-columns:1fr 1fr}
.ub-cc-table-wrap{max-height:360px;overflow:auto;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface)}
.ub-cc-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:12.5px}
.ub-cc-table th,.ub-cc-table td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--ub-border);vertical-align:top}
.ub-cc-table th{position:sticky;top:0;background:var(--ub-surface-2);color:var(--ub-text-2);font-weight:600;font-size:12px;z-index:1}
.ub-cc-table th:first-child,.ub-cc-table td:first-child{width:44%;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;word-break:break-all;letter-spacing:.03em}
.ub-cc-table tbody tr:last-child td{border-bottom:none}
.ub-cc-badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11.5px;font-weight:600;white-space:nowrap}
.ub-cc-badge.is-ok{background:#e6f5ec;color:var(--ub-ok)}
.ub-cc-badge.is-bad{background:#fdeaea;color:#b4262c}
.ub-cc-detail{margin-top:12px;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface-2);padding:4px 14px}
.ub-cc-detail-row{display:flex;align-items:baseline;gap:12px;padding:8px 0;border-bottom:1px solid var(--ub-border)}
.ub-cc-detail-row:last-child{border-bottom:none}
.ub-cc-detail-row .ub-stat-label{flex:0 0 132px}
.ub-cc-detail-value{font-size:13px;font-weight:600;color:var(--ub-text);word-break:break-all}
html.dark .ub-cc-badge.is-ok{background:rgba(21,127,61,.22)}
html.dark .ub-cc-badge.is-bad{background:rgba(180,38,44,.24);color:#ff9a9e}
@media (max-width:900px){
  .ub-cc-grid{grid-template-columns:1fr}
  .ub-textarea.ub-cc-input{min-height:130px}
  .ub-cc-detail-row .ub-stat-label{flex:0 0 100px}
  .ub-cc-table th,.ub-cc-table td{padding:8px 8px;font-size:11.5px}
  .ub-cc-table th:first-child,.ub-cc-table td:first-child{width:42%}
}
/* 文件后缀名查询 */
.ub-fe-search{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:end}
.ub-fe-result{display:flex;gap:16px;align-items:center;margin-top:16px;padding:18px 20px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-fe-badge{flex:0 0 auto;min-width:86px;padding:10px 14px;border-radius:8px;background:var(--ub-surface);border:1px solid var(--ub-border-2);font-size:16px;font-weight:700;letter-spacing:.06em;text-align:center;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-fe-text{min-width:0}
.ub-fe-type{display:block;font-size:15px;font-weight:600;color:var(--ub-text)}
.ub-fe-desc{margin:6px 0 0;font-size:13px;line-height:1.7;color:var(--ub-text-2)}
.ub-fe-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.ub-fe-chip{padding:5px 12px;border:1px solid var(--ub-border);border-radius:6px;background:var(--ub-surface);color:var(--ub-text-2);font-size:12px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;cursor:pointer;transition:border-color .16s,color .16s,background .16s}
.ub-fe-chip:hover{border-color:var(--ub-accent);color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-fe-browse-head{display:flex;align-items:baseline;justify-content:space-between;margin-top:20px}
.ub-fe-count{font-size:11.5px;color:var(--ub-text-3)}
.ub-fe-browse{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;margin-top:8px;max-height:340px;overflow:auto;padding:2px}
.ub-fe-row{display:flex;align-items:baseline;gap:10px;padding:7px 10px;border:1px solid transparent;border-radius:6px;background:var(--ub-surface-2);cursor:pointer;text-align:left;min-width:0;transition:border-color .16s,background .16s}
.ub-fe-row:hover{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-fe-row-ext{flex:0 0 62px;font-size:12px;font-weight:600;color:var(--ub-text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-fe-row-type{font-size:11.5px;color:var(--ub-text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
@media (max-width:980px){
  .ub-fe-browse{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  .ub-fe-search{grid-template-columns:1fr}
  .ub-fe-result{flex-direction:column;align-items:flex-start;gap:10px}
  .ub-fe-badge{min-width:0}
  .ub-fe-browse{max-height:300px}
}
/* 图片尺寸读取 */
.ub-is-panel{cursor:default}
.ub-is-pick{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px}
.ub-is-name{font-size:12.5px;color:var(--ub-text-2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ub-is-hint{font-size:12px;color:var(--ub-text-3)}
.ub-is-body{display:grid;grid-template-columns:260px minmax(0,1fr);gap:16px;align-items:start}
.ub-is-preview{position:relative;display:flex;align-items:center;justify-content:center;min-height:180px;border:1px dashed var(--ub-border-2);border-radius:10px;background:var(--ub-surface-2);overflow:hidden}
.ub-is-preview img{max-width:100%;max-height:260px;display:block}
.ub-is-empty{font-size:12.5px;color:var(--ub-text-3)}
.ub-is-stats{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:8px}
.ub-is-stats .ub-stat:nth-child(-n+4){grid-column:span 3}
.ub-is-stats .ub-stat:nth-child(n+5){grid-column:span 4}
.ub-is-stats .ub-stat{padding:12px 14px}
.ub-is-stats .ub-stat-value{font-size:20px}
.ub-is-print-title{margin-top:18px}
.ub-is-print{display:grid;gap:6px;margin-top:8px}
.ub-is-print-row{display:flex;align-items:baseline;gap:14px;padding:8px 12px;border-radius:6px;background:var(--ub-surface-2)}
.ub-is-print-dpi{flex:0 0 66px;font-size:12px;font-weight:600;color:var(--ub-text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-is-print-value{font-size:12.5px;color:var(--ub-text-2);font-variant-numeric:tabular-nums}
@media (max-width:900px){
  .ub-is-body{grid-template-columns:1fr}
  .ub-is-preview{min-height:140px}
  .ub-is-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-is-stats .ub-stat,.ub-is-stats .ub-stat:nth-child(-n+4),.ub-is-stats .ub-stat:nth-child(n+5){grid-column:auto}
  .ub-is-stats .ub-stat:last-child{grid-column:span 2}
}
@media (max-width:520px){
  .ub-is-stats .ub-stat-value{font-size:17px}
  .ub-is-print-row{flex-direction:column;gap:4px}
  .ub-is-print-dpi{flex:none}
}
/* HTML 去标签 */
.ub-ht-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.ub-ht-col{min-width:0}
.ub-ht-label{display:block;margin-bottom:6px;font-size:12px;font-weight:600;color:var(--ub-text-2)}
.ub-ht-textarea{width:100%;height:260px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.65}
.ub-ht-opts{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:12px}
.ub-ht-check{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--ub-text-2);cursor:pointer;padding:4px 0;min-height:32px}
.ub-ht-check input{width:15px;height:15px;accent-color:var(--ub-accent);cursor:pointer}
.ub-ht-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:14px}
.ub-ht-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
@media (max-width:900px){
  .ub-ht-grid{grid-template-columns:1fr}
  .ub-ht-textarea{height:190px}
  .ub-ht-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* 文本提取 */
.ub-ex-input{width:100%;height:190px;min-height:190px;resize:vertical;font-size:13px;line-height:1.7}
.ub-ex-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.ub-ex-tab{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border:1px solid var(--ub-border);border-radius:6px;background:var(--ub-surface);color:var(--ub-text-2);font-size:12.5px;cursor:pointer;transition:border-color .16s,color .16s,background .16s}
.ub-ex-tab:hover{border-color:var(--ub-accent);color:var(--ub-accent)}
.ub-ex-tab.is-active{border-color:var(--ub-accent);background:var(--ub-accent-soft);color:var(--ub-accent);font-weight:600}
.ub-ex-tab-num{font-style:normal;font-size:11px;line-height:1;padding:3px 6px;border-radius:4px;background:var(--ub-surface-2);color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-ex-tab.is-active .ub-ex-tab-num{background:var(--ub-surface);color:var(--ub-accent)}
.ub-ex-result{margin-top:14px}
.ub-ex-result-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.ub-ex-result-head .ub-pi-list-title{margin:0}
.ub-ex-list{margin-top:8px;max-height:260px;overflow:auto;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface-2);padding:6px}
.ub-ex-row{padding:7px 10px;border-radius:5px;font-size:12.5px;line-height:1.6;color:var(--ub-text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;word-break:break-all}
.ub-ex-row:hover{background:var(--ub-surface)}
.ub-ex-empty{margin:0;padding:18px 10px;text-align:center;font-size:12.5px;color:var(--ub-text-3)}
@media (max-width:760px){
  .ub-ex-input{height:150px;min-height:150px}
  .ub-ex-list{max-height:220px}
}
/* 表格转 Markdown */
.ub-tm-controls{display:grid;grid-template-columns:repeat(2,minmax(150px,176px));gap:12px 24px;margin-bottom:14px}
.ub-tm-field{min-width:0}
.ub-tm-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.ub-tm-col{min-width:0}
.ub-tm-textarea{width:100%;height:230px;min-height:230px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.65}
.ub-tm-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:12px}
.ub-tm-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
@media (max-width:900px){
  .ub-tm-grid{grid-template-columns:1fr}
  .ub-tm-textarea{height:170px;min-height:170px}
  .ub-tm-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* 折扣与满减 */
.ub-dc-form{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.ub-dc-check{margin-top:10px}
.ub-dc-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:14px}
.ub-dc-stats .ub-stat-value{font-size:22px;font-variant-numeric:tabular-nums}
.ub-dc-break{margin-top:10px}
.ub-dc-break-line{margin:0;padding:10px 12px;border-radius:8px;background:var(--ub-surface-2);font-size:12.5px;color:var(--ub-text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-dc-break-note{margin:6px 0 0;font-size:12px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-dc-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-dc-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* 年假天数计算 */
.ub-al-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) auto;gap:10px;align-items:end}
.ub-al-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:14px}
.ub-al-stats .ub-stat-value{font-size:20px;font-variant-numeric:tabular-nums}
.ub-al-break{margin-top:10px}
@media (max-width:900px){
  .ub-al-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-al-form .ub-field-group:last-of-type{grid-column:1 / -1}
  .ub-al-form .ub-btn{grid-column:1 / -1;justify-self:start}
  .ub-al-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* AA 分账 */
.ub-sp-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ub-sp-form .ub-sp-mode{grid-column:span 2}
.ub-sp-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:14px}
.ub-sp-stats .ub-stat-value{font-size:22px;font-variant-numeric:tabular-nums}
.ub-sp-break{margin-top:10px}
@media (max-width:1100px){
  .ub-sp-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-sp-form .ub-sp-mode{grid-column:1 / -1}
}
@media (max-width:640px){
  .ub-sp-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* 百分比计算 */
.ub-pc-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ub-pc-result{display:flex;align-items:baseline;gap:10px;margin-top:14px;padding:16px 18px;border-radius:10px;background:var(--ub-surface-2)}
.ub-pc-result-label{font-size:12.5px;color:var(--ub-text-3)}
.ub-pc-result-value{font-size:28px;font-weight:650;font-variant-numeric:tabular-nums;line-height:1.2}
.ub-pc-result-unit{font-size:17px;font-weight:500;color:var(--ub-text-2);margin-left:1px}
.ub-pc-break{margin-top:10px}
@media (max-width:900px){
  .ub-pc-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-pc-form .ub-field-group:first-of-type{grid-column:1 / -1}
  .ub-pc-result-value{font-size:24px}
}
/* 商品单价比较 */
.ub-up-basis{max-width:240px;margin-bottom:12px}
.ub-up-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.ub-up-item{position:relative;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding:14px 14px 12px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-up-tag{position:absolute;top:-9px;left:12px;padding:1px 6px;border-radius:6px;background:var(--ub-surface);border:1px solid var(--ub-border);font-size:11px;font-weight:600;color:var(--ub-text-3);letter-spacing:.04em}
.ub-up-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:14px}
.ub-up-stats .ub-stat-value{font-size:19px;font-variant-numeric:tabular-nums}
.ub-up-break{margin-top:10px}
@media (max-width:900px){
  .ub-up-grid{grid-template-columns:minmax(0,1fr)}
  .ub-up-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* 图片 EXIF */
.ub-ex-drop{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:22px;border:1px dashed var(--ub-border-2);border-radius:10px;background:var(--ub-surface-2);cursor:pointer;text-align:center}
.ub-ex-drop.is-over{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-ex-drop-text{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--ub-text)}
.ub-ex-drop-hint{font-size:12px;color:var(--ub-text-3)}
.ub-ex-preview{max-width:100%;max-height:220px;border-radius:8px;margin-bottom:8px;object-fit:contain}
.ub-ex-table{width:100%;border-collapse:collapse;margin-top:14px;table-layout:fixed}
.ub-ex-table caption{caption-side:top;text-align:left;font-size:12.5px;color:var(--ub-text-3);padding-bottom:6px}
.ub-ex-table th{width:38%;text-align:left;font-weight:500;font-size:12.5px;color:var(--ub-text-3);padding:9px 10px;border-bottom:1px solid var(--ub-border);vertical-align:top}
.ub-ex-table td{padding:9px 10px;border-bottom:1px solid var(--ub-border);font-size:13px;color:var(--ub-text);word-break:break-word;font-variant-numeric:tabular-nums}
.ub-ex-table tr:last-child th,.ub-ex-table tr:last-child td{border-bottom:0}
.ub-ex-empty{margin:14px 0 0;font-size:13px;color:var(--ub-text-3);line-height:1.75;max-width:56ch;text-align:left}
@media (max-width:640px){
  .ub-ex-table th{width:44%}
}
/* GPA 换算 */
.ub-gpa-head{margin-bottom:10px}
.ub-gpa-scale{max-width:260px}
.ub-gpa-input{min-height:190px!important;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.8}
.ub-gpa-hint{margin:8px 0 0;font-size:12px;color:var(--ub-text-3)}
.ub-gpa-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:14px}
.ub-gpa-stats .ub-stat-value{font-size:22px;font-variant-numeric:tabular-nums}
.ub-gpa-table{width:100%;border-collapse:collapse;margin-top:14px;table-layout:fixed}
.ub-gpa-table th{text-align:left;font-weight:500;font-size:12.5px;color:var(--ub-text-3);padding:8px 10px;border-bottom:1px solid var(--ub-border)}
.ub-gpa-table th:first-child{width:44%}
.ub-gpa-table td{padding:8px 10px;border-bottom:1px solid var(--ub-border);font-size:13px;color:var(--ub-text);font-variant-numeric:tabular-nums;word-break:break-word}
.ub-gpa-table tr:last-child td{border-bottom:0}
@media (max-width:900px){
  .ub-gpa-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-gpa-scale{max-width:none}
}
/* 会议成本计算 */
.ub-mc-form{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.ub-mc-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:16px}
.ub-mc-stats .ub-stat-value{font-size:24px;font-variant-numeric:tabular-nums}
.ub-mc-stats .ub-stat-foot{display:block;margin-top:4px;font-size:11.5px;color:var(--ub-text-3)}
.ub-mc-year{margin:14px 0 0;font-size:13px;color:var(--ub-text-2);display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.ub-mc-year strong{font-size:19px;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-mc-formula{margin:12px 0 0;font-size:12.5px;color:var(--ub-text-3);display:flex;align-items:center;gap:6px}
.ub-mc-formula.is-ok{color:var(--ub-ok)}
.ub-mc-formula.is-error{color:#b3261e}
@media (max-width:900px){
  .ub-mc-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-mc-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* 掷骰子 */
.ub-dice-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;align-items:stretch}
.ub-dice-form .ub-field-group{gap:0;justify-content:flex-start}
.ub-dice-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-dice-form select.ub-input{height:42px!important;min-height:42px!important;padding:0 12px!important;line-height:40px!important}
.ub-dice-form input.ub-input{height:42px!important;min-height:42px!important;padding:0 12px!important}
.ub-dice-form .ub-dice-roll{height:42px!important;min-height:42px!important;align-self:end}
.ub-dice-hero{margin-top:16px;padding:18px;border-radius:12px;background:var(--ub-surface-2);border:1px solid var(--ub-border);text-align:center}
.ub-dice-hero strong{font-size:26px;font-weight:600;color:var(--ub-text);letter-spacing:.02em;font-variant-numeric:tabular-nums;word-break:break-word}
.ub-dice-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:12px}
.ub-dice-stats .ub-stat-value{font-size:20px;font-variant-numeric:tabular-nums}
.ub-dice-dist{margin-top:12px;display:flex;flex-direction:column;gap:4px}
.ub-dice-bar{display:grid;grid-template-columns:34px minmax(0,1fr) 40px;align-items:center;gap:10px}
.ub-dice-bar-label{font-size:12px;color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-dice-bar-track{height:8px;border-radius:4px;background:var(--ub-surface-2);overflow:hidden}
.ub-dice-bar-fill{height:100%;background:var(--ub-accent);border-radius:4px}
.ub-dice-bar-num{font-size:12px;color:var(--ub-text-2);text-align:right;font-variant-numeric:tabular-nums}
@media (max-width:900px){
  .ub-dice-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-dice-roll{grid-column:1 / -1}
  .ub-dice-stats{grid-template-columns:repeat(3,minmax(0,1fr))}
  .ub-dice-hero strong{font-size:22px}
}
/* 复利计算 */
.ub-cp-form{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.ub-cp-form .ub-field-group{gap:0}
.ub-cp-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-cp-form select.ub-input,.ub-cp-form input.ub-input{box-sizing:border-box;height:42px;min-height:42px;padding:0 12px;line-height:40px}
.ub-cp-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:16px}
.ub-cp-stats .ub-stat-value{font-size:22px;font-variant-numeric:tabular-nums}
.ub-cp-table{width:100%;border-collapse:collapse;margin-top:14px;table-layout:fixed}
.ub-cp-table th{text-align:left;font-weight:500;font-size:12.5px;color:var(--ub-text-3);padding:8px 10px;border-bottom:1px solid var(--ub-border)}
.ub-cp-table th:first-child{width:16%}
.ub-cp-table td{padding:8px 10px;border-bottom:1px solid var(--ub-border);font-size:13px;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-cp-table tr:last-child td{border-bottom:0}
@media (max-width:1100px){
  .ub-cp-form{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:900px){
  .ub-cp-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-cp-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* 在线节拍器 */
.ub-mt-form{display:grid;grid-template-columns:170px 150px minmax(0,1fr) auto;gap:12px;align-items:end}
.ub-mt-form .ub-field-group{gap:0}
.ub-mt-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-mt-form select.ub-input,.ub-mt-form input.ub-input{box-sizing:border-box;height:42px;min-height:42px;padding:0 12px}
.ub-mt-accent{display:flex;align-items:center;gap:8px;height:42px;font-size:13px;color:var(--ub-text-2);justify-self:end;padding-right:4px}
.ub-mt-accent input{width:16px;height:16px;margin:0}
.ub-mt-toggle{height:42px;justify-content:center;min-width:118px}
.ub-mt-toggle.is-playing{background:var(--ub-text);border-color:var(--ub-text)}
.ub-mt-slider-row{margin-top:14px}
.ub-mt-slider{width:100%;accent-color:var(--ub-accent);height:20px}
.ub-mt-stage{margin-top:8px;padding:16px;border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2)}
.ub-mt-dots{display:flex;gap:10px;justify-content:center;align-items:center;min-height:28px}
.ub-mt-dot{width:14px;height:14px;border-radius:50%;background:var(--ub-border-2);transition:transform .08s ease,background .08s ease}
.ub-mt-dot.is-on{background:var(--ub-accent);transform:scale(1.35)}
.ub-mt-dot.is-accent{border:1px solid var(--ub-accent)}
.ub-mt-dot.is-accent.is-on{background:var(--ub-text)}
.ub-mt-figures{margin:12px 0 0;text-align:center;font-size:12.5px;color:var(--ub-text-3);display:flex;justify-content:center;gap:6px;align-items:baseline;flex-wrap:wrap}
.ub-mt-figures strong{color:var(--ub-text);font-size:15px;font-variant-numeric:tabular-nums}
.ub-mt-sep{color:var(--ub-border-2)}
@media (max-width:900px){
  .ub-mt-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-mt-accent{justify-self:start;padding-right:0}
  .ub-mt-toggle{grid-column:1 / -1}
}
/* 每日热量计算 */
.ub-ca-form{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.ub-ca-form .ub-field-group{gap:0}
.ub-ca-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-ca-form select.ub-input,.ub-ca-form input.ub-input{box-sizing:border-box;height:42px;min-height:42px;padding:0 12px}
.ub-ca-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:16px}
.ub-ca-stats .ub-stat-value{font-size:24px;font-variant-numeric:tabular-nums}
.ub-ca-stats .ub-stat-foot{display:block;margin-top:4px;font-size:11.5px;color:var(--ub-text-3)}
.ub-ca-goals{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:8px}
.ub-ca-goal{padding:12px 14px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);display:flex;flex-direction:column;gap:4px}
.ub-ca-goal span{font-size:12px;color:var(--ub-text-3)}
.ub-ca-goal strong{font-size:20px;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-ca-goal.is-main{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-ca-sub{margin:18px 0 0;font-size:13px;font-weight:500;color:var(--ub-text-2)}
.ub-ca-macros{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:10px}
.ub-ca-macro{display:flex;align-items:baseline;gap:6px;padding:10px 14px;border:1px solid var(--ub-border);border-radius:10px}
.ub-ca-macro-label{font-size:12px;color:var(--ub-text-3);flex:1}
.ub-ca-macro strong{font-size:18px;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-ca-macro-unit{font-size:11.5px;color:var(--ub-text-3)}
@media (max-width:1100px){
  .ub-ca-form{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:900px){
  .ub-ca-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-ca-goals{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
  .ub-ca-goal{padding:10px 10px}
  .ub-ca-goal strong{font-size:17px}
  .ub-ca-macros{grid-template-columns:repeat(1,minmax(0,1fr))}
}
/* 子网计算 */
.ub-sn-form{display:grid;grid-template-columns:minmax(0,1.2fr) 170px minmax(0,1fr);gap:12px;align-items:start}
.ub-sn-form .ub-field-group{gap:0;height:70px;justify-content:flex-start}
.ub-sn-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-sn-form input.ub-input{box-sizing:border-box;height:42px!important;min-height:42px!important;line-height:42px!important;padding:0 12px!important;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}
.ub-sn-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:16px}
.ub-sn-stats .ub-stat-value{font-size:16px}
.ub-sn-stats .ub-stat-value{display:flex;flex-direction:column;line-height:1.45}
.ub-sn-to{color:var(--ub-text-3);font-weight:400}
.ub-sn-stats .ub-stat-value.is-mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:-.01em}
.ub-sn-rows{margin:14px 0 0;display:flex;flex-direction:column;gap:0}
.ub-sn-rows > div{display:flex;align-items:baseline;gap:12px;padding:8px 0;border-bottom:1px solid var(--ub-border)}
.ub-sn-rows > div:last-child{border-bottom:0}
.ub-sn-rows dt{font-size:12.5px;color:var(--ub-text-3);min-width:120px}
.ub-sn-rows dd{margin:0;font-size:13px;color:var(--ub-text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
@media (max-width:900px){
  .ub-sn-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-sn-form .ub-field-group:last-child{grid-column:1 / -1}
  .ub-sn-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-sn-stats .ub-stat-value{font-size:15px}
  .ub-sn-rows dt{min-width:96px}
}
/* 油耗油费 */
.ub-fc-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.ub-fc-form .ub-field-group{gap:0}
.ub-fc-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-fc-form input.ub-input{box-sizing:border-box;height:42px!important;min-height:42px!important;padding:0 12px!important}
.ub-fc-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:16px}
.ub-fc-stats .ub-stat-value{font-size:17px}
.ub-fc-rows{margin:14px 0 0}
.ub-fc-rows > div{display:flex;align-items:baseline;gap:12px;padding:8px 0;border-top:1px solid var(--ub-border)}
.ub-fc-rows dt{font-size:12.5px;color:var(--ub-text-3);min-width:96px}
.ub-fc-rows dd{margin:0;font-size:13px;color:var(--ub-text)}
@media (max-width:900px){
  .ub-fc-form{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .ub-fc-form .ub-field-group > span{font-size:13px;height:auto;line-height:1.4;white-space:normal;margin-bottom:6px}
  .ub-fc-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-fc-stats .ub-stat-value{font-size:16px}
}
/* 字幕转文本 */
.ub-st-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;padding-top:12px;border-top:1px dashed var(--ub-border)}
.ub-st-toggle{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ub-text-2);cursor:pointer;user-select:none;min-height:32px}
.ub-st-toggle input{width:15px;height:15px;accent-color:var(--ub-accent);cursor:pointer}
.ub-st-btns{display:flex;gap:8px}
.ub-st-stats{display:flex;gap:18px;margin-top:10px;font-size:12.5px;color:var(--ub-text-3)}
.ub-st-stats strong{color:var(--ub-text);font-size:14px;margin-right:3px}
.ub-st-stats em{font-style:normal}
.ub-st-out{margin:12px 0 0;padding:14px 16px;min-height:140px;max-height:300px;overflow:auto;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;font-family:inherit;font-size:13px;line-height:1.85;color:var(--ub-text);white-space:pre-wrap;word-break:break-word}
@media (max-width:900px){
  .ub-st-bar{flex-wrap:wrap;gap:8px}
  .ub-st-btns{width:100%}
  .ub-st-btns .ub-btn{flex:1}
  .ub-st-stats{gap:12px}
  .ub-st-out{max-height:240px}
}
/* 随机分组 */
.ub-gr-form{display:grid;grid-template-columns:minmax(0,1fr) 150px auto;gap:12px;align-items:end;margin-top:14px}
.ub-gr-form .ub-field-group{gap:0}
.ub-gr-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-gr-form .ub-input,.ub-gr-form .ub-select{box-sizing:border-box;height:42px!important;min-height:42px!important;padding:0 12px!important}
.ub-gr-actions{display:flex;gap:8px}
.ub-gr-sumwrap{display:flex;align-items:baseline;gap:10px;margin-top:14px;font-size:12.5px;color:var(--ub-text-3)}
.ub-gr-sumwrap strong{color:var(--ub-text);font-size:14px}
.ub-gr-out{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:12px}
.ub-gr-card{background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;padding:10px 12px}
.ub-gr-head{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ub-text-2);padding-bottom:8px;border-bottom:1px dashed var(--ub-border)}
.ub-gr-count{font-size:11.5px;color:var(--ub-text-3)}
.ub-gr-list{margin:8px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:5px}
.ub-gr-list li{font-size:13px;color:var(--ub-text);line-height:1.5}
@media (max-width:900px){
  .ub-gr-form{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-gr-actions{grid-column:1 / -1}
  .ub-gr-actions .ub-btn{flex:1}
  .ub-gr-out{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-gr-out > .ub-gr-card:last-child:nth-child(odd){grid-column:1 / -1}
}
/* PDF 拆分 */
/* PDF 拆分统计 */
.ub-ps-stats{display:flex;flex-direction:column;gap:8px}
.ub-ps-stats .ub-stat{display:flex!important;flex-direction:row!important;align-items:center;justify-content:space-between;gap:12px;padding:11px 14px}
.ub-ps-stats .ub-stat-label{width:auto!important;margin:0!important}
.ub-ps-stats .ub-stat-value{font-size:16px}
.ub-ps-file{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:10px 12px;margin-top:12px;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:9px;font-size:12.5px;color:var(--ub-text-2)}
.ub-ps-name{font-weight:600;color:var(--ub-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ub-ps-meta{color:var(--ub-text-3);white-space:nowrap}
.ub-ps-range{margin-top:14px}
.ub-ps-range > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-ps-range input.ub-input{box-sizing:border-box;height:42px;min-height:42px;padding:0 12px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}
@media (max-width:900px){
  .ub-ps-file{flex-direction:column;align-items:flex-start;gap:4px}
}
/* 文本转字幕 */
.ub-srt-in{min-height:170px!important}
.ub-srt-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}
.ub-srt-form .ub-field-group{gap:0}
.ub-srt-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-srt-form input.ub-input{box-sizing:border-box;height:42px!important;min-height:42px!important;padding:0 12px!important}
.ub-srt-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;padding-top:12px;border-top:1px dashed var(--ub-border)}
.ub-srt-stats{display:flex;gap:18px;font-size:12.5px;color:var(--ub-text-3)}
.ub-srt-stats strong{color:var(--ub-text);font-size:14px;margin-right:3px}
.ub-srt-stats em{font-style:normal}
.ub-srt-btns{display:flex;gap:8px}
.ub-srt-out{margin:12px 0 0;padding:14px 16px;min-height:160px;max-height:320px;overflow:auto;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.7;color:var(--ub-text-2);white-space:pre-wrap}
@media (max-width:900px){
  .ub-srt-form{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .ub-srt-form .ub-field-group > span{font-size:13px;height:auto;line-height:1.4;white-space:normal;margin-bottom:6px}
  .ub-srt-bar{flex-wrap:wrap;gap:8px}
  .ub-srt-btns{width:100%}
  .ub-srt-btns .ub-btn{flex:1}
  .ub-srt-out{max-height:240px}
}
/* JSON 转 XML */
.ub-jx-in{min-height:300px!important;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}
.ub-jx-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:14px}
.ub-jx-form .ub-field-group{gap:0}
.ub-jx-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-jx-form input.ub-input{box-sizing:border-box;height:42px;min-height:42px;padding:0 12px;font-size:13px}
#jx-err[hidden]{display:none!important}
.ub-jx-bar{display:flex;align-items:center;margin-top:12px;padding-top:12px;border-top:1px dashed var(--ub-border)}
.ub-jx-toggle{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ub-text-2);cursor:pointer;min-height:32px}
.ub-jx-toggle input{width:15px;height:15px;accent-color:var(--ub-accent);cursor:pointer}
.ub-jx-out{margin:0;padding:14px 16px;min-height:300px;max-height:420px;overflow:auto;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.7;color:var(--ub-text-2);white-space:pre-wrap}
.ub-jx-foot{display:flex;justify-content:flex-end;margin-top:8px;font-size:12.5px;color:var(--ub-text-3)}
.ub-jx-count strong{color:var(--ub-text);font-size:14px;margin-right:3px}
.ub-jx-count em{font-style:normal}
@media (max-width:900px){
  .ub-jx-in{min-height:200px!important}
  .ub-jx-out{min-height:200px;max-height:320px}
}
/* 中英文加空格 */
.ub-pg-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:900px){.ub-pg-grid{grid-template-columns:1fr 1fr;align-items:start}}
.ub-pg-in{min-height:210px!important;font-size:13.5px;line-height:1.8}
.ub-pg-out{margin:0;padding:14px 16px;min-height:210px;max-height:420px;overflow:auto;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;font-size:13.5px;line-height:1.8;color:var(--ub-text);white-space:pre-wrap;word-break:break-word}
.ub-pg-foot{display:flex;justify-content:flex-end;margin-top:8px;font-size:12.5px;color:var(--ub-text-3)}
.ub-pg-stat strong{color:var(--ub-text);font-size:14px;margin-right:3px;font-variant-numeric:tabular-nums}
.ub-pg-stat em{font-style:normal}
@media (max-width:900px){
  .ub-pg-in{min-height:190px!important}
  .ub-pg-out{min-height:190px;max-height:320px}
}
/* PDF 加页码 */
.ub-pd-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:960px){.ub-pd-grid{grid-template-columns:1.35fr 1fr;align-items:start}}
.ub-drop-inner{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;cursor:pointer}
.ub-drop-inner strong{font-size:14px;font-weight:600;color:var(--ub-text)}
.ub-drop-inner em{font-style:normal;font-size:12px;color:var(--ub-text-3)}
#pn-meta[hidden]{display:none!important}
.ub-pn-filebar{display:flex;align-items:center;gap:8px;margin-top:10px;padding:10px 12px;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;font-size:12.5px;color:var(--ub-text-2);min-height:42px}
.ub-pn-filebar i{color:var(--ub-text-3);font-size:12px}
.ub-pn-filebar > span:first-of-type{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60%}
.ub-pn-meta{margin-left:auto;display:inline-flex;align-items:center;gap:4px;color:var(--ub-text-3);font-size:12px;white-space:nowrap}
.ub-pn-meta b{color:var(--ub-text);font-weight:650;font-variant-numeric:tabular-nums}
.ub-pn-dot{opacity:.5}
.ub-pn-form{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:14px}
.ub-pn-form .ub-field-group{gap:0}
.ub-pn-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;white-space:nowrap}
.ub-pn-form .ub-input,.ub-pn-form .ub-select{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 12px!important;font-size:13px}
.ub-pn-span2{grid-column:span 2}
.ub-pn-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;padding-top:12px;border-top:1px dashed var(--ub-border);flex-wrap:wrap}
.ub-pn-preview{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--ub-text-3)}
.ub-pn-preview em{font-style:normal}
.ub-pn-preview code{padding:3px 8px;background:var(--ub-accent-soft);border-radius:6px;color:var(--ub-accent);font-size:12.5px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-pn-btns{display:flex;gap:8px}
.ub-pn-stats{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.ub-pn-row{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;font-size:12.5px;color:var(--ub-text-3)}
.ub-pn-row b{color:var(--ub-text);font-size:14px;font-variant-numeric:tabular-nums}
.ub-pn-download{margin-top:12px;justify-content:center;width:100%}
.ub-pn-download[aria-disabled="true"]{opacity:.45;pointer-events:none}
@media (max-width:900px){
  .ub-pn-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .ub-pn-bar{gap:10px}
  .ub-pn-btns{width:100%}
  .ub-pn-btns .ub-btn{flex:1}
}
/* 目录树生成 */
.ub-tree-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:900px){.ub-tree-grid{grid-template-columns:1fr 1fr;align-items:start}}
.ub-tree-in{min-height:240px!important;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}
.ub-tree-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;padding-top:12px;border-top:1px dashed var(--ub-border);flex-wrap:wrap}
.ub-tree-toggle{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ub-text-2);cursor:pointer;min-height:32px}
.ub-tree-toggle input{width:15px;height:15px;accent-color:var(--ub-accent);cursor:pointer}
.ub-tree-btns{display:flex;gap:8px}
.ub-tree-out{margin:0;padding:14px 16px;min-height:240px;max-height:420px;overflow:auto;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:10px;font-family:'SF Mono',ui-monospace,'Cascadia Mono',Menlo,Consolas,'DejaVu Sans Mono',monospace;font-size:13.5px;line-height:1.62;color:var(--ub-text);white-space:pre}
.ub-tree-foot{display:flex;justify-content:flex-end;margin-top:8px;font-size:12.5px;color:var(--ub-text-3)}
.ub-tree-stat strong{color:var(--ub-text);font-size:14px;margin-right:3px;font-variant-numeric:tabular-nums}
.ub-tree-stat em{font-style:normal}
@media (max-width:900px){
  .ub-tree-in{min-height:190px!important}
  .ub-tree-out{min-height:190px;max-height:320px}
  .ub-tree-btns{width:100%}
  .ub-tree-btns .ub-btn{flex:1}
}
/* 星座生肖查询 */
.ub-zc-form{display:grid;grid-template-columns:240px 150px 1fr;align-items:end;gap:12px;margin-top:4px}
.ub-zc-hint{align-self:center;margin:0;padding-top:20px;text-align:right;font-size:12.5px;color:var(--ub-text-3)}
.ub-zc-form .ub-field-group{gap:0}
.ub-zc-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-zc-form .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 12px!important;font-size:13px}
.ub-zc-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:16px}
.ub-zc-card{display:flex;flex-direction:column;gap:6px;padding:16px;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:12px}
.ub-zc-card em{font-style:normal;font-size:12px;color:var(--ub-text-3)}
.ub-zc-card b{font-size:19px;font-weight:700;color:var(--ub-text);line-height:1.25}
.ub-zc-card span{font-size:12px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-zc-form{grid-template-columns:1fr 1fr;gap:10px}
  .ub-zc-hint{grid-column:1 / -1;padding-top:0}
  .ub-zc-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .ub-zc-card{padding:13px}
  .ub-zc-card b{font-size:17px}
}
/* 批量重命名 */
.ub-rn-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:18px;align-items:stretch}
.ub-rn-grid > section:last-child{display:flex;flex-direction:column}
.ub-rn-grid > section:last-child .ub-rn-list{flex:1 1 auto;max-height:none}
.ub-rn-input{min-height:196px;font-family:'SF Mono',ui-monospace,Consolas,monospace!important;font-size:13px!important;line-height:1.75!important}
.ub-rn-rules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:16px;padding-top:16px;border-top:1px solid var(--ub-border)}
.ub-rn-rules .ub-field-group{gap:0}
.ub-rn-rules .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-rn-rules .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-rn-check{display:flex;align-items:center;gap:9px;height:42px;align-self:end;font-size:13px;color:var(--ub-text-2);cursor:pointer;min-height:44px}
.ub-rn-check input{width:18px;height:18px;margin:0;accent-color:var(--ub-accent);flex:0 0 auto}
.ub-rn-list{margin-top:4px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);max-height:360px;overflow:auto}
.ub-rn-row{display:grid;grid-template-columns:1fr 18px 1fr;align-items:center;gap:8px;padding:9px 14px;border-bottom:1px dashed var(--ub-border);font-size:12.5px}
.ub-rn-row:last-child{border-bottom:0}
.ub-rn-row i{color:var(--ub-text-3);font-size:11px;text-align:center}
.ub-rn-from{color:var(--ub-text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ub-rn-to{color:var(--ub-text);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ub-rn-row.is-dup .ub-rn-to{color:#c62828}
.ub-rn-row.is-dup{background:rgba(198,40,40,.06)}
.ub-rn-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px}
.ub-rn-count{font-size:12.5px;color:var(--ub-text-3)}
.ub-rn-count b{font-size:15px;color:var(--ub-text);font-weight:700}
@media (max-width:900px){
  .ub-rn-grid{grid-template-columns:1fr;gap:14px}
  .ub-rn-rules{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .ub-rn-list{max-height:320px}
}
/* 参考文献格式化 */
.ub-rf-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:18px;align-items:stretch}
.ub-rf-form{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px 12px}
.ub-rf-form .ub-field-group{gap:0}
.ub-rf-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-rf-form .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-rf-span2{grid-column:span 2}
.ub-rf-span3{grid-column:span 3}
.ub-rf-span4{grid-column:1 / -1}
.ub-rf-out{display:flex;flex-direction:column;gap:12px;margin-top:4px;flex:1 1 auto}
.ub-rf-item{background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:12px;padding:13px 14px}
.ub-rf-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.ub-rf-head span{font-size:12px;font-weight:700;letter-spacing:.02em;color:var(--ub-text-2)}
.ub-rf-copy{padding:6px 10px!important;font-size:12px!important;min-height:32px}
.ub-rf-text{margin:0;white-space:pre-wrap;word-break:break-word;font-size:13px;line-height:1.72;color:var(--ub-text)}
.ub-rf-grid > section:last-child{display:flex;flex-direction:column}
@media (max-width:900px){
  .ub-rf-grid{grid-template-columns:1fr;gap:14px}
  .ub-rf-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .ub-rf-span2,.ub-rf-span3{grid-column:1 / -1}
  .ub-rf-span4{grid-column:1 / -1}
}
/* 摩尔斯电码 */
.ub-mo-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}
.ub-mo-grid > section{display:flex;flex-direction:column}
.ub-mo-dir{font-size:12px;color:var(--ub-text-2);background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:999px;padding:4px 10px;white-space:nowrap}
.ub-mo-stat{font-size:12px;color:var(--ub-text-3)}
.ub-mo-input,.ub-mo-out{height:200px!important;min-height:200px!important;resize:none!important;font-family:'SF Mono',ui-monospace,Consolas,monospace!important;font-size:13.5px!important;line-height:1.8!important}
.ub-mo-out{letter-spacing:.06em;word-spacing:.12em}
.ub-mo-bar{display:flex;align-items:center;gap:12px;margin-top:14px;padding-top:14px;border-top:1px solid var(--ub-border)}
.ub-mo-label{font-size:13px;color:var(--ub-text-2);flex:0 0 auto}
.ub-mo-range{flex:1 1 auto;min-width:0;height:26px;accent-color:var(--ub-accent);cursor:pointer}
.ub-mo-wpm{font-size:12.5px;color:var(--ub-text-3);flex:0 0 auto;font-variant-numeric:tabular-nums}
.ub-mo-wpm b{color:var(--ub-text);font-size:14px}
.ub-mo-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.ub-mo-actions .ub-btn{flex:1 1 auto;justify-content:center}
@media (max-width:900px){
  .ub-mo-grid{grid-template-columns:1fr;gap:14px}
  .ub-mo-input,.ub-mo-out{height:130px!important;min-height:130px!important}
}
/* XML 转 JSON */
.ub-xj-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}
.ub-xj-grid > section{display:flex;flex-direction:column}
.ub-xj-in,.ub-xj-out{height:250px!important;min-height:250px!important;resize:none!important;font-family:'SF Mono',ui-monospace,Consolas,monospace!important;font-size:13px!important;line-height:1.75!important}
.ub-xj-bar{display:flex;align-items:center;gap:12px;margin-top:14px;padding-top:14px;border-top:1px solid var(--ub-border);flex-wrap:wrap}
.ub-xj-label{font-size:13px;color:var(--ub-text-2);flex:0 0 auto}
.ub-xj-range{flex:1 1 120px;min-width:90px;height:26px;accent-color:var(--ub-accent);cursor:pointer}
.ub-xj-indent{font-size:12.5px;color:var(--ub-text-3);flex:0 0 auto;font-variant-numeric:tabular-nums}
.ub-xj-indent b{color:var(--ub-text);font-size:14px}
.ub-xj-copy{padding:8px 12px!important;font-size:12.5px!important;min-height:36px;flex:0 0 auto}
.ub-xj-stat{font-size:12px;color:var(--ub-text-3)}
.ub-error{margin:12px 0 0;padding:9px 12px;border-radius:8px;background:rgba(198,40,40,.07);border:1px solid rgba(198,40,40,.28);color:#b3261e;font-size:12.5px;line-height:1.6;word-break:break-word}
.ub-error[hidden]{display:none!important}
@media (max-width:900px){
  .ub-xj-grid{grid-template-columns:1fr;gap:14px}
  .ub-xj-in,.ub-xj-out{height:190px!important;min-height:190px!important}
  .ub-xj-copy{flex:1 1 100%}
}
/* JSON 结构比对 */
.ub-jd-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}
.ub-jd-grid > section{display:flex;flex-direction:column}
.ub-jd-swap{padding:6px 10px!important;font-size:12px!important;min-height:32px}
.ub-jd-label{display:block;font-size:12px;color:var(--ub-text-3);margin:2px 0 6px}
.ub-jd-in{height:178px!important;min-height:178px!important;resize:none!important;font-family:'SF Mono',ui-monospace,Consolas,monospace!important;font-size:12.5px!important;line-height:1.7!important}
.ub-jd-in + .ub-jd-label{margin-top:14px}
.ub-jd-stat{font-size:12.5px;color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-jd-list{flex:1 1 auto;min-height:240px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);overflow:auto}
.ub-jd-row{display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 10px;padding:9px 13px;border-bottom:1px dashed var(--ub-border);font-size:12.5px;align-items:center}
.ub-jd-row:last-child{border-bottom:0}
.ub-jd-tag{font-size:11px;padding:2px 7px;border-radius:999px;border:1px solid transparent;white-space:nowrap;justify-self:start}
.ub-jd-row.is-add .ub-jd-tag{background:rgba(21,127,61,.1);border-color:rgba(21,127,61,.3);color:#157f3d}
.ub-jd-row.is-del .ub-jd-tag{background:rgba(198,40,40,.09);border-color:rgba(198,40,40,.3);color:#b3261e}
.ub-jd-row.is-mod .ub-jd-tag{background:rgba(59,87,232,.09);border-color:rgba(59,87,232,.28);color:var(--ub-accent)}
.ub-jd-path{grid-column:2;font-family:'SF Mono',ui-monospace,Consolas,monospace;color:var(--ub-text);word-break:break-all}
.ub-jd-val{grid-column:2;color:var(--ub-text-3);font-size:12px;word-break:break-word}
.ub-jd-row.is-mod .ub-jd-val i{font-size:10px;margin:0 4px;color:var(--ub-text-3)}
.ub-jd-same{display:flex;align-items:center;gap:9px;padding:18px 14px;font-size:13px;color:#157f3d}
.ub-jd-foot{margin-top:14px}
.ub-jd-foot .ub-btn{width:100%;justify-content:center}
@media (max-width:900px){
  .ub-jd-grid{grid-template-columns:1fr;gap:14px}
  .ub-jd-in{height:150px!important;min-height:150px!important}
  .ub-jd-list{min-height:180px}
}
/* 视频体积估算 */
.ub-vs-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 12px}
.ub-vs-form .ub-field-group{gap:0}
.ub-vs-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-vs-form .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-vs-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:16px}
.ub-vs-card{display:flex;flex-direction:column;gap:6px;padding:15px 16px;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:12px}
.ub-vs-card em{font-style:normal;font-size:12px;color:var(--ub-text-3)}
.ub-vs-card b{font-size:18px;font-weight:700;color:var(--ub-text);line-height:1.3;word-break:break-word}
.ub-vs-card span{font-size:12px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-vs-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .ub-vs-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .ub-vs-card{padding:13px}
  .ub-vs-card b{font-size:16px}
}
/* 随机点名 */
.ub-pk-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}
.ub-pk-grid > section{display:flex;flex-direction:column}
.ub-pk-names{height:230px!important;min-height:230px!important;resize:none!important}
.ub-pk-opts{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:end;margin-top:12px}
.ub-pk-opts .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-pk-opts .ub-input{height:42px!important;min-height:42px!important;box-sizing:border-box;width:100%!important}
.ub-pk-check{display:flex;align-items:center;gap:8px;height:42px;font-size:13px;color:var(--ub-text-2);cursor:pointer;padding:0 2px}
.ub-pk-check input{width:18px;height:18px;margin:0;accent-color:var(--ub-accent);cursor:pointer}
.ub-pk-actions{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:12px}
.ub-pk-actions .ub-btn{justify-content:center;height:44px}
.ub-pk-res{flex:0 0 auto;min-height:88px;display:flex;align-items:center;justify-content:center;text-align:center;padding:16px;border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2);font-size:22px;font-weight:700;line-height:1.45;color:var(--ub-text);word-break:break-word;font-variant-numeric:tabular-nums}
.ub-pk-sub{font-size:12px;font-weight:600;color:var(--ub-text-3);margin:16px 0 8px}
.ub-pk-hist{flex:1 1 auto;min-height:120px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);overflow:auto}
.ub-pk-hist-row{display:grid;grid-template-columns:26px minmax(0,1fr);gap:10px;align-items:center;padding:9px 13px;border-bottom:1px dashed var(--ub-border);font-size:13px;color:var(--ub-text-2)}
.ub-pk-hist-row:last-child{border-bottom:0}
.ub-pk-hist-row em{font-style:normal;font-size:11px;color:var(--ub-text-3)}
.ub-pk-hist-row span{word-break:break-word}
.ub-pk-res:empty::before{content:'—';color:var(--ub-text-3);font-weight:600}
.ub-pk-empty{padding:18px 14px;font-size:13px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-pk-grid{grid-template-columns:1fr;gap:14px}
  .ub-pk-names{height:190px!important;min-height:190px!important}
  .ub-pk-res{min-height:80px;font-size:19px}
}
/* 音频体积换算 */
.ub-as-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 12px}
.ub-as-form .ub-field-group{gap:0}
.ub-as-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-as-form .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-as-span2{grid-column:span 2}
.ub-as-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:16px}
.ub-as-card{display:flex;flex-direction:column;gap:6px;padding:15px 16px;background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:12px}
.ub-as-card em{font-style:normal;font-size:12px;color:var(--ub-text-3)}
.ub-as-card b{font-size:18px;font-weight:700;color:var(--ub-text);line-height:1.3;word-break:break-word}
.ub-as-card span{font-size:12px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-as-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .ub-as-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .ub-as-card{padding:13px}
  .ub-as-card b{font-size:16px}
}
/* 存储容量换算 */
.ub-by-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}
.ub-by-grid > section{display:flex;flex-direction:column}
.ub-by-in{display:grid;grid-template-columns:1fr 140px;gap:12px}
.ub-by-in .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-by-in .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-by-sys{margin:16px 0 0;padding:12px 14px;border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2)}
.ub-by-sys legend{font-size:12px;color:var(--ub-text-3);padding:0 4px}
.ub-by-radio{display:flex;align-items:flex-start;gap:8px;padding:5px 0;font-size:13px;color:var(--ub-text-2);cursor:pointer;min-height:32px}
.ub-by-radio input{width:17px;height:17px;margin:2px 0 0;accent-color:var(--ub-accent);cursor:pointer;flex:0 0 auto}
.ub-by-cmp{display:flex;flex-direction:column;gap:3px;margin-top:14px;padding:12px 14px;border:1px solid var(--ub-border);border-radius:12px}
.ub-by-cmp-t{font-size:12px;color:var(--ub-text-3)}
.ub-by-cmp-v{font-size:14px;font-weight:600;color:var(--ub-text);word-break:break-word;font-variant-numeric:tabular-nums}
.ub-by-list{flex:1 1 auto;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);overflow:hidden}
.ub-by-row{display:grid;grid-template-columns:56px minmax(0,1fr);gap:10px;align-items:baseline;padding:11px 15px;border-bottom:1px dashed var(--ub-border)}
.ub-by-row:last-child{border-bottom:0}
.ub-by-row em{font-style:normal;font-size:12px;color:var(--ub-text-3)}
.ub-by-row b{font-size:15px;font-weight:600;color:var(--ub-text-2);font-variant-numeric:tabular-nums;word-break:break-word}
.ub-by-row.is-cur{background:var(--ub-accent-soft)}
.ub-by-row.is-cur em{color:var(--ub-accent)}
.ub-by-row.is-cur b{color:var(--ub-accent);font-weight:700}
@media (max-width:900px){
  .ub-by-grid{grid-template-columns:1fr;gap:14px}
  .ub-by-in{grid-template-columns:1fr 120px}
  .ub-by-row{padding:10px 13px}
}
/* 字号阶梯生成 */
.ub-sc-grid{display:grid;grid-template-columns:360px minmax(0,1fr);gap:18px;align-items:stretch}
.ub-sc-grid > section{display:flex;flex-direction:column}
.ub-sc-form{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px}
.ub-sc-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px}
.ub-sc-form .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-sc-form .ub-field-group:nth-child(2){grid-column:1/-1}
.ub-sc-actions{margin-top:12px}
.ub-sc-actions .ub-btn{width:100%;justify-content:center;height:42px}
.ub-sc-css{margin-top:12px!important;height:214px!important;min-height:214px!important;resize:none!important;font-family:'SF Mono',ui-monospace,Consolas,monospace!important;font-size:12px!important;line-height:1.65!important;color:var(--ub-text-2)!important}
.ub-sc-list{flex:1 1 auto;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);overflow:auto}
.ub-sc-row{display:grid;grid-template-columns:64px minmax(0,1fr) 96px;gap:12px;align-items:center;padding:10px 15px;border-bottom:1px dashed var(--ub-border)}
.ub-sc-row:last-child{border-bottom:0}
.ub-sc-name{font-family:'SF Mono',ui-monospace,Consolas,monospace;font-size:12px;color:var(--ub-text-3)}
.ub-sc-sample{font-weight:600;color:var(--ub-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ub-sc-meta{display:flex;flex-direction:column;gap:1px;text-align:right;font-variant-numeric:tabular-nums}
.ub-sc-meta b{font-size:12.5px;font-weight:600;color:var(--ub-text)}
.ub-sc-meta em{font-style:normal;font-size:11px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-sc-grid{grid-template-columns:1fr;gap:14px}
  .ub-sc-form{grid-template-columns:1fr 1fr}
  .ub-sc-row{grid-template-columns:54px minmax(0,1fr) 70px;padding:9px 12px}
}
/* 离职补偿金计算 */
.ub-sv-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:stretch}
.ub-sv-grid > section{display:flex;flex-direction:column}
.ub-sv-form{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px}
.ub-sv-form .ub-field-group{gap:0}
.ub-sv-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ub-sv-form .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-sv-span2{grid-column:1/-1}
.ub-sv-list{flex:1 1 auto;display:flex;flex-direction:column;gap:10px}
.ub-sv-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 16px;border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2)}
.ub-sv-row-h{display:flex;flex-direction:column;gap:2px;min-width:0}
.ub-sv-row-h em{font-style:normal;font-size:13px;font-weight:600;color:var(--ub-text)}
.ub-sv-row-h span{font-size:11.5px;color:var(--ub-text-3);line-height:1.5}
.ub-sv-row b{font-size:17px;font-weight:700;color:var(--ub-text);white-space:nowrap;font-variant-numeric:tabular-nums}
.ub-sv-row:nth-child(3) b{color:var(--ub-accent)}
@media (max-width:900px){
  .ub-sv-grid{grid-template-columns:1fr;gap:14px}
  .ub-sv-row{padding:12px 14px}
  .ub-sv-row b{font-size:15px}
}
/* 客观题批改 */
.ub-gd-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:18px;align-items:stretch}
.ub-gd-grid > section{display:flex;flex-direction:column}
.ub-gd-top{display:grid;grid-template-columns:1fr 110px;gap:12px}
.ub-gd-top .ub-field-group > span,.ub-gd-sheet-wrap > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-gd-top .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px;font-family:'SF Mono',ui-monospace,Consolas,monospace;letter-spacing:.5px}
.ub-gd-sheet-wrap{display:block;margin-top:14px}
.ub-gd-sheet{height:236px!important;min-height:236px!important;resize:none!important;font-family:'SF Mono',ui-monospace,Consolas,monospace!important;font-size:13px!important;line-height:1.9!important;letter-spacing:.5px}
.ub-gd-stat{font-size:12px;color:var(--ub-text-3);text-align:right;line-height:1.5}
.ub-gd-list{flex:1 1 auto;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);overflow:auto;min-height:240px}
.ub-gd-row{display:grid;grid-template-columns:minmax(58px,auto) 56px minmax(0,1fr) 56px;gap:10px;align-items:center;padding:10px 14px;border-bottom:1px dashed var(--ub-border);font-size:13px}
.ub-gd-row:last-child{border-bottom:0}
.ub-gd-name{color:var(--ub-text);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ub-gd-meta{display:flex;flex-direction:column;gap:1px;font-variant-numeric:tabular-nums}
.ub-gd-meta em{font-style:normal;font-size:12px;color:var(--ub-text-2)}
.ub-gd-meta span{font-size:11px;color:var(--ub-text-3)}
.ub-gd-wrong{color:var(--ub-text-3);font-size:11.5px;line-height:1.5;word-break:break-word;font-variant-numeric:tabular-nums}
.ub-gd-row.is-bad .ub-gd-wrong{color:#b3261e}
.ub-gd-wrong i{font-size:10px;margin-right:5px;color:#b3261e}
.ub-gd-score{text-align:right;font-size:16px;font-weight:700;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-gd-row.is-bad .ub-gd-score{color:#b3261e}
@media (max-width:900px){
  .ub-gd-grid{grid-template-columns:1fr;gap:14px}
  .ub-gd-top{grid-template-columns:1fr 96px}
  .ub-gd-sheet{height:200px!important;min-height:200px!important}
  .ub-gd-row{grid-template-columns:minmax(50px,auto) 48px minmax(0,1fr) 44px;gap:8px;padding:9px 12px}
}
/* 乱码修复 */
.ub-mj-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:stretch}
.ub-mj-grid > section{display:flex;flex-direction:column}
.ub-mj-in{height:200px!important;min-height:200px!important;resize:none!important;font-size:14px!important;line-height:1.8!important}
.ub-mj-copy{width:100%;justify-content:center;margin-top:12px;padding:9px 12px!important;font-size:13px!important;min-height:40px}
.ub-mj-list{flex:1 1 auto;display:flex;flex-direction:column;gap:10px;min-height:190px}
.ub-mj-row{border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2);padding:14px 16px;display:flex;flex:1 1 0;flex-direction:column;justify-content:center;gap:8px;min-height:88px}
.ub-mj-row.is-best{border-color:rgba(59,87,232,.35);background:var(--ub-accent-soft)}
.ub-mj-row-h{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--ub-text-3)}
.ub-mj-row-h em{font-style:normal;color:var(--ub-accent);font-size:11px;border:1px solid rgba(59,87,232,.35);border-radius:999px;padding:1px 7px}
.ub-mj-rate{margin-left:auto;font-variant-numeric:tabular-nums}
.ub-mj-text{font-size:14px;line-height:1.7;color:var(--ub-text);word-break:break-word}
.ub-mj-none{padding:16px 14px;font-size:13px;color:var(--ub-text-3);border:1px dashed var(--ub-border);border-radius:12px}
@media (max-width:900px){
  .ub-mj-grid{grid-template-columns:1fr;gap:14px}
  .ub-mj-in{height:160px!important;min-height:160px!important}
  .ub-mj-list{min-height:0}
}
/* 颜文字 */
.ub-km-rand{width:100%;justify-content:center;margin-top:14px;padding:9px 12px!important;font-size:13px!important;min-height:40px}
.ub-km-grid{display:grid;grid-template-columns:340px minmax(0,1fr);gap:18px;align-items:start}
.ub-km-grid > section{display:flex;flex-direction:column}
.ub-km-count{font-size:12px;color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-km-cats{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.ub-km-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:999px;padding:7px 13px;font-size:12.5px;line-height:1;cursor:pointer;transition:border-color .15s,background .15s,color .15s;min-height:32px}
.ub-km-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-km-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-km-list{flex:1 1 auto;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;align-content:start;min-height:260px}
.ub-km-item{appearance:none;font-family:'Segoe UI Symbol','Apple Symbols','Noto Sans Symbols 2','Microsoft YaHei',system-ui,sans-serif;border:1px solid var(--ub-border);background:var(--ub-surface-2);border-radius:10px;padding:14px 8px;font-size:13.5px;line-height:1.5;color:var(--ub-text);cursor:pointer;text-align:center;word-break:break-all;transition:border-color .15s,background .15s,transform .12s}
.ub-km-item:hover{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-km-item:active{transform:scale(.97)}
.ub-km-empty{grid-column:1 / -1;padding:18px 14px;border:1px dashed var(--ub-border);border-radius:12px;color:var(--ub-text-3);font-size:13px}
@media (max-width:1080px){
  .ub-km-list{gap:8px}
}
@media (max-width:900px){
  .ub-km-grid{grid-template-columns:1fr;gap:14px}
  .ub-km-list{grid-template-columns:repeat(2,minmax(0,1fr));min-height:0}
}
/* 视频变速换算 */
.ub-sp-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:stretch}
.ub-sp-grid > section{display:flex;flex-direction:column}
.ub-sp-form{display:grid;grid-template-columns:1fr 120px;gap:12px}
.ub-sp-form .ub-field-group > span,.ub-sp-chap-wrap > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-sp-form .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-sp-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.ub-sp-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:6px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:30px;font-variant-numeric:tabular-nums;transition:border-color .15s,background .15s,color .15s}
.ub-sp-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-sp-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-sp-chap-wrap{display:block;margin-top:14px}
.ub-sp-chapters{height:170px!important;min-height:170px!important;resize:none!important;font-family:'SF Mono',ui-monospace,Consolas,monospace!important;font-size:12.5px!important;line-height:1.9!important}
.ub-sp-out{flex:1 1 auto;display:flex;flex-direction:column;gap:10px;min-height:240px}
.ub-sp-card{border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2);padding:13px 16px;display:flex;flex-direction:column;gap:4px}
.ub-sp-card.is-main{background:var(--ub-accent-soft);border-color:rgba(59,87,232,.3)}
.ub-sp-card-h{font-size:11.5px;color:var(--ub-text-3)}
.ub-sp-big{font-size:24px;line-height:1.2;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-sp-card b{font-size:17px;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-sp-sub{font-size:12px;color:var(--ub-text-3)}
.ub-sp-card.is-list{flex:1 1 auto}
.ub-sp-chap{display:flex;flex-direction:column;gap:0;margin-top:6px}
.ub-sp-chap-row{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px dashed var(--ub-border);font-size:12.5px}
.ub-sp-chap-row:last-child{border-bottom:0}
.ub-sp-t{font-variant-numeric:tabular-nums;color:var(--ub-text-3);min-width:48px}
.ub-sp-t.is-to{color:var(--ub-text);font-weight:600}
.ub-sp-chap-row i{font-size:10px;color:var(--ub-text-3)}
.ub-sp-chap-row em{font-style:normal;color:var(--ub-text-2);margin-left:auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media (max-width:900px){
  .ub-sp-grid{grid-template-columns:1fr;gap:14px}
  .ub-sp-form{grid-template-columns:1fr 100px}
  .ub-sp-out{min-height:0}
  .ub-sp-chapters{height:140px!important;min-height:140px!important}
}
/* BPM 节拍换算 */
.ub-bp-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:stretch}
.ub-bp-grid > section{display:flex;flex-direction:column}
.ub-bp-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ub-bp-form .ub-field-group > span,.ub-bp-len-wrap > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-bp-form .ub-input,.ub-bp-len-wrap .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-bp-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.ub-bp-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:6px 12px;font-size:12.5px;line-height:1;cursor:pointer;min-height:30px;font-variant-numeric:tabular-nums;transition:border-color .15s,background .15s,color .15s}
.ub-bp-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-bp-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-bp-len-wrap{display:block;margin-top:14px}
.ub-bp-out{flex:1 1 auto;display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:start;min-height:220px}
.ub-bp-card{border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2);padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.ub-bp-card.is-main{background:var(--ub-accent-soft);border-color:rgba(59,87,232,.3)}
.ub-bp-card-h{font-size:11.5px;color:var(--ub-text-3)}
.ub-bp-card b{font-size:20px;line-height:1.3;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-bp-sub{font-size:12px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-bp-grid{grid-template-columns:1fr;gap:14px}
  .ub-bp-out{min-height:0}
}
/* 间距体系生成 */
.ub-sg-grid{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:18px;align-items:start}
.ub-sg-grid > section{display:flex;flex-direction:column}
.ub-sg-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ub-sg-form .ub-field-group > span,.ub-sg-prefix-wrap > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-sg-form .ub-input,.ub-sg-form .ub-select,.ub-sg-prefix-wrap .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-sg-prefix-wrap{display:block;margin-top:14px}
.ub-sg-copy{width:100%;justify-content:center;margin-top:12px;padding:9px 12px!important;font-size:13px!important;min-height:40px}
.ub-sg-cols{flex:1 1 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;min-height:300px}
.ub-sg-list{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);overflow:auto}
.ub-sg-row{display:grid;grid-template-columns:26px 74px 1fr auto;gap:8px;align-items:baseline;padding:7px 12px;border-bottom:1px dashed var(--ub-border);font-size:12.5px}
.ub-sg-row:last-child{border-bottom:0}
.ub-sg-row em{font-style:normal;color:var(--ub-text-3);font-size:11.5px;font-variant-numeric:tabular-nums}
.ub-sg-row b{color:var(--ub-text);font-size:14px;font-variant-numeric:tabular-nums}
.ub-sg-row b small{font-size:10.5px;font-weight:400;color:var(--ub-text-3);margin-left:1px}
.ub-sg-row span{color:var(--ub-text-3);font-size:11px;font-variant-numeric:tabular-nums}
.ub-sg-row i{font-style:normal;color:var(--ub-text-3);font-size:11px;text-align:right;white-space:nowrap}
.ub-sg-css{height:auto!important;min-height:300px!important;resize:none!important;font-family:'SF Mono',ui-monospace,Consolas,monospace!important;font-size:12px!important;line-height:1.9!important;padding:10px 12px!important}
@media (max-width:900px){
  .ub-sg-grid{grid-template-columns:1fr;gap:14px}
  .ub-sg-cols{grid-template-columns:1fr;min-height:0}
  .ub-sg-css{min-height:180px!important}
  .ub-sg-row{grid-template-columns:24px 70px 1fr;gap:6px}
  .ub-sg-row i{display:none}
}
/* 数据脱敏 */
.ub-mk-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:stretch}
.ub-mk-grid > section{display:flex;flex-direction:column}
.ub-mk-in{height:190px!important;min-height:190px!important;resize:none!important;font-size:13px!important;line-height:1.8!important}
.ub-mk-opts{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.ub-mk-opt{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:999px;padding:7px 12px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-mk-opt:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-mk-opt.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-mk-keep{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:12px}
.ub-mk-keep label{font-size:12px;color:var(--ub-text-3)}
.ub-mk-keep .ub-input{box-sizing:border-box;width:84px!important;height:38px!important;min-height:38px!important;padding:0 8px!important;font-size:13px;text-align:center}
.ub-mk-counts{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}
.ub-mk-badge{font-size:11px;color:var(--ub-text-3);border:1px solid var(--ub-border);border-radius:999px;padding:2px 8px;line-height:1.6}
.ub-mk-badge b{color:var(--ub-text);margin-left:2px;font-variant-numeric:tabular-nums}
.ub-mk-out{flex:1 1 auto;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:14px 16px;min-height:190px;overflow:auto}
.ub-mk-text{font-size:13px;line-height:1.9;color:var(--ub-text);white-space:pre-wrap;word-break:break-word}
.ub-mk-empty{font-size:13px;color:var(--ub-text-3)}
.ub-mk-copy{width:100%;justify-content:center;margin-top:12px;padding:9px 12px!important;font-size:13px!important;min-height:40px}
@media (max-width:900px){
  .ub-mk-grid{grid-template-columns:1fr;gap:14px}
  .ub-mk-in{height:160px!important;min-height:160px!important}
  .ub-mk-out{min-height:140px}
}
/* 昵称生成 */
.ub-nk-grid{display:grid;grid-template-columns:320px minmax(0,1fr);gap:18px;align-items:start}
.ub-nk-grid > section{display:flex;flex-direction:column}
.ub-nk-chips{display:flex;flex-wrap:wrap;gap:7px}
.ub-nk-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:999px;padding:7px 13px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-nk-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-nk-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-nk-form{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:14px;align-items:end}
.ub-nk-form .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-nk-form .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-nk-run{height:42px!important;padding:0 16px!important;font-size:13px!important;white-space:nowrap}
.ub-nk-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;align-content:start;min-height:200px}
.ub-nk-item{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface-2);border-radius:10px;padding:12px 10px;font-size:13.5px;line-height:1.4;color:var(--ub-text);cursor:pointer;text-align:center;word-break:break-all;transition:border-color .15s,background .15s,transform .12s}
.ub-nk-item:hover{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-nk-item:active{transform:scale(.97)}
@media (max-width:900px){
  .ub-nk-grid{grid-template-columns:1fr;gap:14px}
  .ub-nk-list{grid-template-columns:repeat(2,minmax(0,1fr));min-height:0}
}
/* 文件类型识别 */
.ub-mg-demo{font-size:11px;color:var(--ub-text-3);border:1px solid var(--ub-border);border-radius:999px;padding:2px 8px;line-height:1.6}
.ub-mg-grid{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:18px;align-items:start}
.ub-mg-grid > section{display:flex;flex-direction:column}
.ub-mg-drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;border:1.5px dashed var(--ub-border-2);border-radius:12px;background:var(--ub-surface-2);padding:26px 16px;cursor:pointer;text-align:center;transition:border-color .15s,background .15s}
.ub-mg-drop:hover{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-mg-drop i{font-size:20px;color:var(--ub-accent);margin-bottom:2px}
.ub-mg-drop-main{font-size:13.5px;color:var(--ub-text);font-weight:600}
.ub-mg-drop-sub{font-size:12px;color:var(--ub-text-3);line-height:1.6}
.ub-mg-input{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);border:0}
.ub-mg-name{font-size:12.5px;color:var(--ub-text-2);margin-top:12px;line-height:1.6;word-break:break-all;min-height:20px}
.ub-mg-body{flex:1 1 auto;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:14px 16px;min-height:240px;display:flex;flex-direction:column;gap:12px}
.ub-mg-rows{display:flex;flex-direction:column;gap:10px}
.ub-mg-row{display:flex;align-items:baseline;gap:12px;font-size:13px;line-height:1.6}
.ub-mg-key{flex:0 0 84px;color:var(--ub-text-3);font-size:12px}
.ub-mg-val{flex:1 1 auto;color:var(--ub-text);word-break:break-all;font-variant-numeric:tabular-nums}
.ub-mg-hex{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;color:var(--ub-text-2);letter-spacing:.02em}
.ub-mg-verdict{font-size:12.5px;line-height:1.6;border-radius:8px;padding:8px 11px;background:var(--ub-surface);border:1px solid var(--ub-border);color:var(--ub-text-2)}
.ub-mg-verdict.is-same{color:var(--ub-ok);border-color:rgba(21,127,61,.35);background:rgba(21,127,61,.07)}
.ub-mg-verdict.is-mismatch{color:#b3261e;border-color:rgba(179,38,30,.35);background:rgba(179,38,30,.07)}
.ub-mg-verdict.is-unknown{color:var(--ub-text-3)}
.ub-mg-peek{font-size:12px;color:var(--ub-text-3);line-height:1.7}
.ub-mg-peek code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--ub-text-2);font-size:11.5px;word-break:break-all}
.ub-mg-body.is-empty .ub-mg-rows{opacity:.75}
@media (max-width:900px){
  .ub-mg-grid{grid-template-columns:1fr;gap:14px}
  .ub-mg-body{min-height:0}
  .ub-mg-key{flex:0 0 74px}
}
/* 视频比例适配 */
.ub-ft-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:18px;align-items:start}
.ub-ft-grid > section{display:flex;flex-direction:column}
.ub-ft-size{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ub-ft-size .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-ft-size .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-ft-hint{font-size:12px;color:var(--ub-text-3);line-height:1.7;margin-top:10px;min-height:20px}
.ub-ft-hint b{color:var(--ub-text-2);font-weight:600}
.ub-ft-label{font-size:12px;color:var(--ub-text-3);margin:14px 0 8px}
.ub-ft-chips{display:flex;flex-wrap:wrap;gap:7px}
.ub-ft-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;font-variant-numeric:tabular-nums;transition:border-color .15s,background .15s,color .15s}
.ub-ft-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-ft-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-ft-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ub-ft-card{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:12px 14px}
.ub-ft-card-head{font-size:12px;color:var(--ub-text-3);margin-bottom:8px}
.ub-ft-body{min-height:82px;display:flex;flex-direction:column;gap:4px}
.ub-ft-big{font-size:19px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.ub-ft-sub{font-size:12px;color:var(--ub-text-2)}
.ub-ft-lines{display:flex;flex-direction:column;gap:2px;margin-top:4px;font-size:11.5px;color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-ft-empty{font-size:12.5px;color:var(--ub-text-3);line-height:1.7}
.ub-ft-preview{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}
.ub-ft-prev-col{display:flex;flex-direction:column;align-items:center;gap:7px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:10px}
.ub-ft-prev-cap{font-size:11.5px;color:var(--ub-text-3)}
.ub-ft-box{position:relative;background:#1b2437;border-radius:5px;overflow:hidden;display:flex;align-items:center;justify-content:center;box-sizing:border-box;border:1px dashed rgba(255,255,255,.28);margin:0 auto}
.ub-ft-inner{background:#4a63ea;border-radius:3px;transition:width .2s,height .2s;position:relative}
.ub-ft-inner.is-fill{width:100%;height:100%}
.ub-ft-inner.is-pad{opacity:.95}
@media (max-width:900px){
  .ub-ft-grid{grid-template-columns:1fr;gap:14px}
  .ub-ft-cards{grid-template-columns:1fr}
}
/* 分贝换算 */
.ub-db-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:18px;align-items:start}
.ub-db-grid > section{display:flex;flex-direction:column}
.ub-db-grid .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-db-grid .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-db-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.ub-db-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 10px;font-size:12px;line-height:1;cursor:pointer;min-height:32px;font-variant-numeric:tabular-nums;transition:border-color .15s,background .15s,color .15s}
.ub-db-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-db-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-db-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ub-db-card{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:12px 14px}
.ub-db-card-cap{font-size:12px;color:var(--ub-text-3);margin-bottom:6px}
.ub-db-big{font-size:22px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;line-height:1.3}
.ub-db-card-sub{font-size:11px;color:var(--ub-text-3);margin-top:4px}
.ub-db-scale{font-size:12px;color:var(--ub-text-2);line-height:1.7;margin-top:10px;min-height:20px}
.ub-db-mixbox{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:12px 14px;margin-top:12px;max-width:520px}
.ub-db-mixhead{font-size:12px;color:var(--ub-text-3);margin-bottom:8px}
.ub-db-mixrow{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ub-db-mixrow .ub-input{box-sizing:border-box;flex:0 1 132px;height:38px!important;min-height:38px!important;padding:0 10px!important;font-size:13px;text-align:center}
.ub-db-plus{font-size:12px;color:var(--ub-text-3);line-height:1}
.ub-db-mixout{margin-top:10px}
.ub-db-mix-main{font-size:18px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-db-mix-sub{font-size:11.5px;color:var(--ub-text-3);line-height:1.7;margin-top:2px}
.ub-db-mix-weak{color:var(--ub-text-2)}
.ub-db-empty{font-size:12.5px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-db-grid{grid-template-columns:1fr;gap:14px}
  .ub-db-cards{grid-template-columns:1fr}
}
/* PDF 拼版计算 */
.ub-np-grid{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:18px;align-items:start}
.ub-np-grid > section{display:flex;flex-direction:column}
.ub-np-label{font-size:12px;color:var(--ub-text-3);margin:0 0 8px}
.ub-np-label + .ub-np-chips + .ub-np-label{margin-top:14px}
.ub-np-chips{display:flex;flex-wrap:wrap;gap:7px}
.ub-np-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-np-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-np-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-np-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.ub-np-fields .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-np-fields .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-np-pages{margin-top:12px}
.ub-np-pages > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-np-pages .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-np-result{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:14px 16px}
.ub-np-big{font-size:22px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;line-height:1.3}
.ub-np-rows{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.ub-np-row{display:flex;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ub-text-3)}
.ub-np-row b{color:var(--ub-text);font-weight:600;font-variant-numeric:tabular-nums}
.ub-np-preview{display:flex;justify-content:center;margin-top:14px}
.ub-np-sheet{width:230px;background:#1b2437;border-radius:6px;padding:0;overflow:hidden}
.ub-np-cells{display:grid;background:#1b2437;height:100%;box-sizing:border-box}
.ub-np-cell{background:#4a63ea;border-radius:2px;min-height:16px}
@media (max-width:900px){
  .ub-np-grid{grid-template-columns:1fr;gap:14px}
}
/* 试卷分值分配 */
.ub-pp-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:18px;align-items:start}
.ub-pp-grid > section{display:flex;flex-direction:column}
.ub-pp-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ub-pp-fields .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-pp-fields .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-pp-each{margin-top:12px}
.ub-pp-each > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-pp-each .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-pp-label{font-size:12px;color:var(--ub-text-3);margin:14px 0 8px}
.ub-pp-chips{display:flex;flex-wrap:wrap;gap:7px}
.ub-pp-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;font-variant-numeric:tabular-nums;transition:border-color .15s,background .15s,color .15s}
.ub-pp-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-pp-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-pp-avg{font-size:24px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;line-height:1.3}
.ub-pp-planhead{font-size:12px;color:var(--ub-text-3);margin:14px 0 8px}
.ub-pp-plan{display:flex;flex-direction:column;gap:8px}
.ub-pp-row{display:flex;align-items:center;gap:9px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:11px 14px;font-size:13px;font-variant-numeric:tabular-nums}
.ub-pp-score{font-weight:600;color:var(--ub-text);min-width:58px}
.ub-pp-op{color:var(--ub-text-3);font-size:12px}
.ub-pp-cnt{color:var(--ub-text)}
.ub-pp-sub{color:var(--ub-text-3);font-size:12px;margin-left:auto}
.ub-pp-sum{font-size:12.5px;color:var(--ub-text-2);line-height:1.7;margin-top:12px;min-height:20px}
.ub-pp-sum b{color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-pp-empty{font-size:12.5px;color:var(--ub-text-3);line-height:1.7}
@media (max-width:900px){
  .ub-pp-grid{grid-template-columns:1fr;gap:14px}
}
/* 工作日计算 */
.ub-wd-grid{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:18px;align-items:start}
.ub-wd-grid > section{display:flex;flex-direction:column}
.ub-wd-dates{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ub-wd-dates .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-wd-dates .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 8px!important;font-size:13px}
.ub-wd-modes{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.ub-wd-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-wd-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-wd-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-wd-hol{margin-top:12px}
.ub-wd-hol > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-wd-hol .ub-textarea{box-sizing:border-box;width:100%!important;min-height:72px!important;font-size:12.5px;line-height:1.7;resize:vertical}
.ub-wd-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ub-wd-card{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:12px 14px}
.ub-wd-cap{font-size:12px;color:var(--ub-text-3);margin-bottom:6px}
.ub-wd-big{font-size:20px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;line-height:1.3}
.ub-wd-duebox{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:12px 14px;margin-top:12px}
.ub-wd-mixhead{font-size:12px;color:var(--ub-text-3);margin-bottom:9px}
.ub-wd-duerow{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ub-text-2);flex-wrap:wrap}
.ub-wd-duerow .ub-input{box-sizing:border-box;width:88px!important;height:36px!important;min-height:36px!important;padding:0 8px!important;font-size:13px;text-align:center}
.ub-wd-duedate{font-size:18px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;margin-top:9px}
@media (max-width:900px){
  .ub-wd-grid{grid-template-columns:1fr;gap:14px}
  .ub-wd-cards{grid-template-columns:1fr}
}
/* Emoji 表情速查 */
.ub-em-grid{display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:18px;align-items:start}
.ub-em-grid > section{display:flex;flex-direction:column}
.ub-em-side .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-em-side .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-em-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.ub-em-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-em-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-em-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-em-count{font-size:12px;color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-em-palette{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.ub-em-item{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface-2);border-radius:9px;width:52px;height:52px;display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0;transition:border-color .15s,background .15s,transform .12s}
.ub-em-item:hover{border-color:var(--ub-accent);background:var(--ub-surface);transform:translateY(-1px)}
.ub-em-glyph{font-size:26px;line-height:1;font-family:'Segoe UI Emoji','Apple Color Emoji','Noto Color Emoji','Microsoft YaHei',sans-serif}
@media (max-width:900px){
  .ub-em-grid{grid-template-columns:1fr;gap:14px}
  .ub-em-item{width:48px;height:48px}
}
/* 预产期计算 */
.ub-dd-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:18px;align-items:start}
.ub-dd-grid > section{display:flex;flex-direction:column}
.ub-dd-grid .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-dd-grid .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-dd-pair{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.ub-dd-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ub-dd-card{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:12px 14px}
.ub-dd-cap{font-size:12px;color:var(--ub-text-3);margin-bottom:6px}
.ub-dd-big{font-size:22px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;line-height:1.3}
.ub-dd-sub{font-size:12px;color:var(--ub-text-2);margin-top:4px}
.ub-dd-listhead{font-size:12px;color:var(--ub-text-3);margin:14px 0 8px}
.ub-dd-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.ub-dd-row{display:flex;align-items:center;gap:10px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface);padding:10px 14px;font-size:12.5px}
.ub-dd-rowcap{color:var(--ub-text-2)}
.ub-dd-rowdate{margin-left:auto;color:var(--ub-text);font-variant-numeric:tabular-nums}
@media (max-width:900px){
  .ub-dd-grid{grid-template-columns:1fr;gap:14px}
}
/* 文本相似度 */
.ub-sm-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,360px);gap:18px;align-items:start}
.ub-sm-grid > section{display:flex;flex-direction:column}
.ub-sm-grid .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-sm-grid .ub-textarea{box-sizing:border-box;width:100%!important;min-height:104px!important;font-size:13px;line-height:1.75;resize:vertical}
.ub-sm-gap{margin-top:12px}
.ub-sm-opts{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px}
.ub-sm-check{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ub-text-2);cursor:pointer;min-height:28px}
.ub-sm-check input{width:15px;height:15px;margin:0;accent-color:var(--ub-accent)}
.ub-sm-hero{display:flex;align-items:baseline;gap:12px;margin-bottom:12px}
.ub-sm-pct{font-size:34px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;line-height:1.1}
.ub-sm-verdict{font-size:12.5px;padding:4px 9px;border-radius:7px;background:var(--ub-surface-2);color:var(--ub-text-2);border:1px solid var(--ub-border)}
.ub-sm-verdict.is-high{color:#b42318;border-color:#f0c2bc;background:#fdf3f2}
.ub-sm-verdict.is-mid{color:#8a5a00;border-color:#f0dcb4;background:#fdf8ee}
.ub-sm-verdict.is-some{color:#215c2f;border-color:#c4e0cd;background:#f2faf4}
.ub-sm-verdict.is-low{color:var(--ub-text-2)}
.ub-sm-rows{display:flex;flex-direction:column;gap:8px}
.ub-sm-row{display:flex;align-items:center;gap:10px;border:1px solid var(--ub-border);border-radius:9px;background:var(--ub-surface-2);padding:10px 13px;font-size:12.5px;color:var(--ub-text-2)}
.ub-sm-val{margin-left:auto;color:var(--ub-text);font-variant-numeric:tabular-nums}
@media (max-width:900px){
  .ub-sm-grid{grid-template-columns:1fr;gap:14px}
}
/* 日薪时薪折算 */
.ub-wg-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:18px;align-items:start}
.ub-wg-grid > section{display:flex;flex-direction:column}
.ub-wg-grid .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-wg-grid .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-wg-label{font-size:12px;color:var(--ub-text-3);margin:12px 0 8px}
.ub-wg-chips{display:flex;flex-wrap:wrap;gap:7px}
.ub-wg-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-wg-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-wg-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-wg-hours{margin-top:12px}
.ub-wg-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ub-wg-tablehead{font-size:12px;color:var(--ub-text-3);margin:16px 0 8px}
.ub-wg-table{display:flex;flex-direction:column;gap:6px}
.ub-wg-trow{display:grid;grid-template-columns:1.2fr 1fr 1fr;align-items:center;gap:8px;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface);padding:8px 12px;font-size:12.5px;color:var(--ub-text-2)}
.ub-wg-trow.is-active{border-color:var(--ub-accent);background:var(--ub-accent-soft);color:var(--ub-text)}
.ub-wg-tname{font-variant-numeric:tabular-nums}
.ub-wg-tval{text-align:right;font-variant-numeric:tabular-nums;color:var(--ub-text)}
.ub-wg-card{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:12px 14px}
.ub-wg-cap{font-size:12px;color:var(--ub-text-3);margin-bottom:6px}
.ub-wg-big{font-size:20px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;line-height:1.3}
@media (max-width:900px){
  .ub-wg-grid{grid-template-columns:1fr;gap:14px}
  .ub-wg-cards{grid-template-columns:1fr}
}
/* 圆角生成器 */
.ub-rd-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:18px;align-items:start}
.ub-rd-grid > section{display:flex;flex-direction:column}
.ub-rd-grid .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-rd-grid .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px}
.ub-rd-corners{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ub-rd-units{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.ub-rd-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-rd-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-rd-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-rd-check{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--ub-text-2);cursor:pointer;min-height:32px;margin-top:10px}
.ub-rd-check input{width:15px;height:15px;margin:0;accent-color:var(--ub-accent)}
.ub-rd-stage{display:flex;align-items:center;justify-content:center;padding:22px 18px;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-rd-preview{width:240px;height:150px;max-width:100%;background:#4a63ea;border:1px solid #3a51c4}
.ub-rd-css{margin-top:12px;border:1px solid var(--ub-border);border-radius:9px;background:var(--ub-surface-2);padding:11px 13px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;color:var(--ub-text);word-break:break-all}
.ub-rd-copy{appearance:none;display:flex;align-items:center;justify-content:center;gap:8px;width:100%;margin-top:10px;border:1px solid var(--ub-accent);background:var(--ub-accent);color:#fff;border-radius:9px;padding:11px 14px;font-size:13px;cursor:pointer;min-height:42px;transition:background .15s}
.ub-rd-copy:hover{background:var(--ub-accent-hover);border-color:var(--ub-accent-hover)}
@media (max-width:900px){
  .ub-rd-grid{grid-template-columns:1fr;gap:14px}
  .ub-rd-preview{width:100%;height:120px}
}
/* 时间码换算 */
.ub-tc-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:18px;align-items:start}
.ub-tc-grid > section{display:flex;flex-direction:column}
.ub-tc-grid .ub-field-group > span{display:block;height:20px;line-height:20px;margin-bottom:8px;font-size:12px;color:var(--ub-text-3)}
.ub-tc-grid .ub-input{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 10px!important;font-size:13px;font-variant-numeric:tabular-nums}
.ub-tc-label{font-size:12px;color:var(--ub-text-3);margin-bottom:8px}
.ub-tc-chips{display:flex;flex-wrap:wrap;gap:7px}
.ub-tc-chip{appearance:none;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;font-variant-numeric:tabular-nums;transition:border-color .15s,background .15s,color .15s}
.ub-tc-chip:hover{border-color:var(--ub-border-2);color:var(--ub-text)}
.ub-tc-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-tc-gap{margin-top:12px}
.ub-tc-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ub-tc-card{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2);padding:12px 14px}
.ub-tc-cap{font-size:12px;color:var(--ub-text-3);margin-bottom:6px}
.ub-tc-big{font-size:19px;font-weight:600;color:var(--ub-text);font-variant-numeric:tabular-nums;line-height:1.35;word-break:break-all}
.ub-tc-tablehead{font-size:12px;color:var(--ub-text-3);margin:16px 0 8px}
.ub-tc-table{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
.ub-tc-trow{display:flex;align-items:center;gap:8px;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface);padding:9px 12px;font-size:12.5px;color:var(--ub-text-2)}
.ub-tc-tval{margin-left:auto;color:var(--ub-text);font-variant-numeric:tabular-nums}
@media (max-width:900px){
  .ub-tc-grid{grid-template-columns:1fr;gap:14px}
  .ub-tc-cards{grid-template-columns:1fr}
  .ub-tc-table{grid-template-columns:1fr 1fr}
}
/* MBTI 十六型速查 */
.ub-mb-gridwrap{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:18px;align-items:start}
.ub-mb-gridwrap > section{display:flex;flex-direction:column}
.ub-mb-dims{display:flex;flex-direction:column;gap:12px}
.ub-mb-dimlabel{font-size:12px;color:var(--ub-text-3);margin-bottom:6px}
.ub-mb-pair{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.ub-mb-chip{appearance:none;display:flex;flex-direction:column;align-items:flex-start;gap:2px;border:1px solid var(--ub-border);background:var(--ub-surface);border-radius:9px;padding:9px 12px;min-height:44px;cursor:pointer;text-align:left;transition:border-color .15s,background .15s}
.ub-mb-chip strong{font-size:14px;color:var(--ub-text);font-weight:600;letter-spacing:.02em}
.ub-mb-chip span{font-size:11.5px;color:var(--ub-text-3);line-height:1.3}
.ub-mb-chip:hover{border-color:var(--ub-border-2)}
.ub-mb-chip.is-active{background:var(--ub-accent-soft);border-color:var(--ub-accent)}
.ub-mb-chip.is-active strong{color:var(--ub-accent)}
.ub-mb-chip.is-active span{color:var(--ub-text-2)}
.ub-mb-head{display:flex;align-items:baseline;gap:10px}
.ub-mb-code{font-size:26px;font-weight:700;letter-spacing:.08em;color:var(--ub-text);font-variant-numeric:tabular-nums}
.ub-mb-name{font-size:15px;color:var(--ub-text-2)}
.ub-mb-tags{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.ub-mb-tag{font-size:11.5px;color:var(--ub-text-2);background:var(--ub-surface-2);border:1px solid var(--ub-border);border-radius:999px;padding:3px 9px}
.ub-mb-desc{margin:0 0 12px;font-size:13px;line-height:1.7;color:var(--ub-text-2)}
.ub-mb-row{display:flex;gap:12px;padding:9px 0;border-top:1px solid var(--ub-border)}
.ub-mb-rowcap{flex:0 0 96px;font-size:12px;color:var(--ub-text-3);line-height:1.7}
.ub-mb-rowval{font-size:13px;line-height:1.7;color:var(--ub-text)}
.ub-mb-gridhead{font-size:12px;color:var(--ub-text-3);margin:14px 0 8px}
.ub-mb-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
.ub-mb-cell{appearance:none;display:flex;flex-direction:column;align-items:flex-start;gap:1px;border:1px solid var(--ub-border);background:var(--ub-surface);border-radius:8px;padding:8px 9px;cursor:pointer;text-align:left;transition:border-color .15s,background .15s}
.ub-mb-cell strong{font-size:11.5px;font-weight:600;letter-spacing:.04em;color:var(--ub-text)}
.ub-mb-cell span{font-size:11px;color:var(--ub-text-3);line-height:1.3}
.ub-mb-cell:hover{border-color:var(--ub-border-2)}
.ub-mb-cell.is-active{background:var(--ub-accent);border-color:var(--ub-accent)}
.ub-mb-cell.is-active strong,.ub-mb-cell.is-active span{color:#fff}
@media (max-width:900px){
  .ub-mb-gridwrap{grid-template-columns:1fr;gap:14px}
  .ub-mb-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-mb-rowcap{flex:0 0 76px}
}
/* HTTP 状态码速查 */
.ub-st-wrap{display:block}
.ub-st-status{margin:0 0 12px}
.ub-st-search{box-sizing:border-box;width:100%!important;height:42px!important;min-height:42px!important;padding:0 12px!important;font-size:13px;margin-bottom:12px}
.ub-st-chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.ub-st-chip{appearance:none;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-st-chip em{font-style:normal;font-size:11px;color:var(--ub-text-3);font-variant-numeric:tabular-nums}
.ub-st-chip:hover{border-color:var(--ub-border-2)}
.ub-st-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-st-chip.is-active em{color:rgba(255,255,255,.78)}
.ub-st-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ub-st-card{border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface);padding:12px 13px}
.ub-st-code{display:inline-block;font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:.02em;border-radius:6px;padding:2px 7px;margin-bottom:8px;color:var(--ub-text)}
.ub-st-code[data-cls="1"]{background:#eef1f6;color:#3c4a63}
.ub-st-code[data-cls="2"]{background:#e6f4ec;color:#157f3d}
.ub-st-code[data-cls="3"]{background:#eaf0ff;color:#2a43cc}
.ub-st-code[data-cls="4"]{background:#fdf0e4;color:#a35a12}
.ub-st-code[data-cls="5"]{background:#fbe8ea;color:#9c2233}
.ub-st-name{font-size:13px;font-weight:600;color:var(--ub-text);line-height:1.45}
.ub-st-name span{display:block;font-size:11.5px;font-weight:400;color:var(--ub-text-3);margin-top:1px}
.ub-st-desc{margin:6px 0 0;font-size:12px;line-height:1.65;color:var(--ub-text-2)}
.ub-st-empty{padding:24px 4px;font-size:13px;color:var(--ub-text-3)}
@media (max-width:900px){
  .ub-st-grid{grid-template-columns:1fr}
}
/* PDF 页面旋转 */
.ub-ro-anglecap{font-size:12px;color:var(--ub-text-3);margin:14px 0 8px}
.ub-ro-angles{display:flex;flex-wrap:wrap;gap:7px}
.ub-ro-chip{appearance:none;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--ub-border);background:var(--ub-surface);color:var(--ub-text-2);border-radius:8px;padding:7px 11px;font-size:12.5px;line-height:1;cursor:pointer;min-height:32px;transition:border-color .15s,background .15s,color .15s}
.ub-ro-chip i{font-size:12px}
.ub-ro-chip:hover{border-color:var(--ub-border-2)}
.ub-ro-chip.is-active{background:var(--ub-accent);border-color:var(--ub-accent);color:#fff}
.ub-ro-range{margin-top:14px}
/* 我的工具箱 · 弹窗与分享 */
.ub-my-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.ub-modal {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.ub-modal[hidden] { display: none; }
.ub-modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(10, 19, 36, .48);
}
.ub-modal-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  max-height: calc(100vh - 40px);
  overflow: auto;
  background: var(--ub-surface);
  border: 1px solid var(--ub-border);
  border-radius: 14px;
  box-shadow: 0 18px 48px rgba(10, 19, 36, .22);
  padding: 18px 20px 20px;
}
.ub-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.ub-modal-title { margin: 0; font-size: 16px; font-weight: 600; color: var(--ub-text); }
.ub-modal-close {
  appearance: none;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border: 1px solid var(--ub-border);
  border-radius: 8px;
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}
.ub-modal-close:hover { border-color: var(--ub-border-2); color: var(--ub-text); }
.ub-modal-body { display: flex; flex-direction: column; gap: 12px; }
.ub-modal-qrwrap {
  display: flex;
  justify-content: center;
  padding: 12px;
  background: var(--ub-surface-2);
  border: 1px solid var(--ub-border);
  border-radius: 10px;
}
.ub-modal-qrwrap canvas { display: block; width: 240px; height: 240px; }
.ub-modal-url {
  margin: 0;
  padding: 8px 10px;
  background: var(--ub-surface-2);
  border: 1px dashed var(--ub-border-2);
  border-radius: 8px;
  font-size: 12px;
  color: var(--ub-text-2);
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}
.ub-modal-linkbox .ub-input {
  box-sizing: border-box;
  width: 100% !important;
  height: 42px !important;
  min-height: 42px !important;
  padding: 0 10px !important;
  font-size: 13px;
}
.ub-modal-note { margin: 0; font-size: 12px; line-height: 1.65; color: var(--ub-text-3); }
.ub-modal-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.ub-modal-actions .ub-btn { flex: 1 1 auto; justify-content: center; }
@media (max-width: 520px) {
  .ub-modal { padding: 14px; }
  .ub-modal-card { padding: 16px; }
  .ub-modal-qrwrap canvas { width: 200px; height: 200px; }
}
/* 我的工具箱 · 分组标签与精简卡片 */
.ub-my-groups {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
}
.ub-my-groups[hidden] { display: none; }
.ub-my-tab,
.ub-my-tab-add {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid var(--ub-border);
  border-radius: 999px;
  background: var(--ub-surface);
  color: var(--ub-text-2);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}
.ub-my-tab:hover,
.ub-my-tab-add:hover { border-color: var(--ub-border-2); color: var(--ub-text); }
.ub-my-tab.is-on {
  border-color: var(--ub-accent);
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-weight: 600;
}
.ub-my-tab-add {
  border-style: dashed;
  color: var(--ub-accent);
  background: transparent;
}
.ub-my-group-ops { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.ub-my-op {
  appearance: none;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--ub-border);
  border-radius: 8px;
  background: var(--ub-surface);
  color: var(--ub-text-2);
  font-size: 12.5px;
  cursor: pointer;
}
.ub-my-op:hover { border-color: var(--ub-border-2); color: var(--ub-text); }
.ub-my-op.is-danger { border-color: #e2564a; color: #c9362b; background: #fdeceb; }
.ub-my-group-form {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 260px;
  min-width: 220px;
}
.ub-my-group-input {
  box-sizing: border-box;
  flex: 1 1 auto;
  min-width: 0;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--ub-border);
  border-radius: 8px;
  background: var(--ub-surface);
  color: var(--ub-text);
  font-size: 13px;
  font-family: inherit;
}
.ub-my-group-input:focus {
  outline: none;
  border-color: var(--ub-accent);
  box-shadow: 0 0 0 3px var(--ub-accent-soft);
}

.ub-my-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.ub-my-grid .ub-empty-panel { grid-column: 1 / -1; }
.ub-my-grid.is-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.ub-my-card {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  min-height: 56px;
  padding: 10px 14px;
  border: 1px solid var(--ub-border);
  border-radius: 10px;
  background: var(--ub-surface);
  color: var(--ub-text);
  text-decoration: none;
  transition: border-color .15s ease, background .15s ease;
}
.ub-my-card:hover { border-color: var(--ub-accent); background: var(--ub-surface-2); }
.ub-my-card-icon {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--ub-accent-soft);
  color: var(--ub-accent);
  font-size: 13px;
}
.ub-my-card-name {
  flex: 1 1 0;
  min-width: 0;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ub-my-card.is-editing { flex-wrap: wrap; row-gap: 8px; background: var(--ub-surface-2); }
/* 编辑态要看清全名，不再省略成省略号 */
.ub-my-card.is-editing .ub-my-card-name { white-space: normal; overflow: visible; line-height: 1.35; word-break: break-word; }
.ub-my-card-tools { display: inline-flex; gap: 4px; }
.ub-my-mini {
  appearance: none;
  width: 28px;
  height: 28px;
  border: 1px solid var(--ub-border);
  border-radius: 7px;
  background: var(--ub-surface);
  color: var(--ub-text-2);
  font-size: 11px;
  cursor: pointer;
}
.ub-my-mini:hover { border-color: var(--ub-accent); color: var(--ub-accent); }
.ub-my-group-select {
  flex: 1 1 100%;
  box-sizing: border-box;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--ub-border);
  border-radius: 7px;
  background: var(--ub-surface);
  color: var(--ub-text);
  font-size: 12.5px;
  font-family: inherit;
}
@media (max-width: 900px) {
  .ub-my-grid,
  .ub-my-grid.is-three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .ub-my-grid,
  .ub-my-grid.is-three { grid-template-columns: minmax(0, 1fr); }
  .ub-my-group-ops { margin-left: 0; width: 100%; }
}
/* ===== 教育工具：口算 / 算术 / 乘法表 / 元素周期表 / 课程表 / 值班表 / 计划表 ===== */

/* ---------- 口算题、算术题 ---------- */
.ub-om-grid,
.ub-ar-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px 18px;
  margin-top: 4px;
}
.ub-om-item,
.ub-ar-item {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 10px;
  border: 1px solid var(--ub-border);
  border-radius: 8px;
  background: var(--ub-surface);
  font-size: 15px;
  color: var(--ub-text);
}
.ub-om-no,
.ub-ar-no {
  flex: 0 0 auto;
  min-width: 20px;
  font-size: 12px;
  color: var(--ub-text-3);
}
.ub-om-expr,
.ub-ar-expr { flex: 1 1 auto; min-width: 0; font-variant-numeric: tabular-nums; }
.ub-om-ans,
.ub-ar-ans {
  flex: 0 0 auto;
  font-weight: 600;
  color: var(--ub-accent);
  min-width: 28px;
  text-align: right;
}
.ub-om-ans:not(.is-on),
.ub-ar-ans:not(.is-on) { visibility: hidden; }
.ub-om-empty,
.ub-ar-empty {
  grid-column: 1 / -1;
  padding: 32px 16px;
  text-align: center;
  color: var(--ub-text-3);
  font-size: 13px;
  border: 1px dashed var(--ub-border);
  border-radius: 10px;
}

/* ---------- 乘法表 ---------- */
.ub-mt-grid {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-variant-numeric: tabular-nums;
}
.ub-mt-grid th,
.ub-mt-grid td {
  border: 1px solid var(--ub-border);
  text-align: center;
  padding: 6px 2px;
  font-size: 13px;
}
.ub-mt-grid th {
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font-weight: 600;
}
.ub-mt-grid td { color: var(--ub-text); font-weight: 500; }
.ub-mt-grid td.is-hl { background: var(--ub-accent-soft); color: var(--ub-accent); }
.ub-mt-corner { width: 44px; }
.ub-mt-dot { color: var(--ub-text-3); font-weight: 400; }
.ub-mt-chants {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--ub-border);
}
.ub-mt-chant {
  font-size: 12.5px;
  color: var(--ub-text-2);
  padding: 3px 8px;
  background: var(--ub-surface-2);
  border-radius: 6px;
}

/* ---------- 元素周期表 ---------- */
.ub-pt-scroll { overflow-x: auto; padding-bottom: 6px; }
.ub-pt-grid {
  display: grid;
  grid-template-columns: repeat(18, minmax(46px, 1fr));
  grid-template-rows: repeat(7, auto) auto auto;
  gap: 3px;
  min-width: 900px;
}
.ub-pt-cell {
  appearance: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  min-height: 46px;
  padding: 3px 2px;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  text-align: center;
}
.ub-pt-cell:hover { border-color: var(--ub-accent); }
.ub-pt-cell.is-on { border-color: var(--ub-accent); box-shadow: inset 0 0 0 1px var(--ub-accent); }
.ub-pt-cell.is-dim { opacity: .28; }
.ub-pt-z { font-size: 9px; line-height: 1; opacity: .75; }
.ub-pt-sym { font-size: 14px; font-weight: 700; line-height: 1.1; }
.ub-pt-name { font-size: 10px; line-height: 1; }
.ub-pt-fmark {
  display: flex;
  align-items: center;
  font-size: 10px;
  color: var(--ub-text-3);
  white-space: nowrap;
}
.ub-pt-detail {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
  padding: 14px;
  border: 1px solid var(--ub-border);
  border-radius: 12px;
  background: var(--ub-surface-2);
}
.ub-pt-badge {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 78px;
  height: 78px;
  border-radius: 10px;
}
.ub-pt-badge-z { font-size: 11px; opacity: .8; }
.ub-pt-badge-sym { font-size: 26px; font-weight: 700; line-height: 1.1; }
.ub-pt-info { flex: 1 1 auto; min-width: 0; }
.ub-pt-title { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.ub-pt-title strong { font-size: 16px; }
.ub-pt-title span { font-size: 12.5px; color: var(--ub-text-3); }
.ub-pt-facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 0; }
.ub-pt-facts div { min-width: 0; }
.ub-pt-facts dt { font-size: 11.5px; color: var(--ub-text-3); margin-bottom: 2px; }
.ub-pt-facts dd { margin: 0; font-size: 13.5px; font-weight: 500; }
.ub-pt-legend { display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 10px 0 4px; }
.ub-pt-legend-item { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--ub-text-2); }
.ub-pt-legend-item em { font-style: normal; color: var(--ub-text-3); }
.ub-pt-dot { width: 9px; height: 9px; border-radius: 3px; display: inline-block; }

.cat-alkali { background: #fbe7d6; color: #8a4a20; }
.cat-alkaline { background: #fdeed2; color: #8a6414; }
.cat-transition { background: #e5edfb; color: #2f4f8f; }
.cat-post { background: #e2f2ea; color: #1f6b4d; }
.cat-metalloid { background: #eee6fa; color: #5a3a8a; }
.cat-nonmetal { background: #fbe6ee; color: #8a2f52; }
.cat-halogen { background: #e9f0dd; color: #46621f; }
.cat-noble { background: #e4f2f5; color: #26606b; }
.cat-lanth { background: #f7e5e2; color: #8a3b30; }
.cat-actin { background: #eae4f7; color: #46306e; }

/* ---------- 课程表 ---------- */
.ub-tt-grid {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}
.ub-tt-grid th,
.ub-tt-grid td {
  border: 1px solid var(--ub-border);
  font-size: 12.5px;
  text-align: center;
  height: 46px;
  padding: 2px;
}
.ub-tt-grid thead th,
.ub-tt-grid tr:first-child th {
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font-weight: 600;
  height: 34px;
}
.ub-tt-corner { width: 64px; }
.ub-tt-period {
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  width: 64px;
  line-height: 1.2;
}
.ub-tt-pno { display: block; font-weight: 600; }
.ub-tt-time { display: block; font-size: 10px; color: var(--ub-text-3); }
.ub-tt-time-input {
  width: 100%;
  min-width: 0;
  min-height: 26px;
  padding: 2px 3px;
  border: 1px solid var(--ub-border);
  border-radius: 5px;
  background: var(--ub-surface);
  color: var(--ub-text-2);
  font: inherit;
  font-size: 10.5px;
  text-align: center;
}
.ub-tt-time-input::-webkit-calendar-picker-indicator { opacity: .55; }
.ub-btn[hidden] { display: none; }
.ub-tt-cell { cursor: pointer; color: var(--ub-text-3); background: var(--ub-surface); }
.ub-tt-cell.is-filled { font-weight: 600; }
.ub-tt-add { font-size: 14px; opacity: .5; }
.ub-tt-input {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  min-height: 40px;
  border: 0;
  background: var(--ub-surface);
  color: var(--ub-text);
  font-family: inherit;
  font-size: 13px;
  text-align: center;
}
.ub-tt-input:focus { outline: 2px solid var(--ub-accent); outline-offset: -2px; }
.ub-tt-cell.c1 { background: #e8efff; color: #2c3f7a; }
.ub-tt-cell.c2 { background: #e9f6ec; color: #2c6440; }
.ub-tt-cell.c3 { background: #fdf1e3; color: #7d5426; }
.ub-tt-cell.c4 { background: #f6e9f5; color: #6e3a69; }
.ub-tt-cell.c5 { background: #e7f4f6; color: #2b5f6a; }
.ub-tt-cell.c6 { background: #f8ecec; color: #7c3b3b; }
.ub-tt-cell.c7 { background: #eff3e3; color: #55652c; }
.ub-tt-cell.c8 { background: #ecebf8; color: #453f7d; }

/* ---------- 值班表 ---------- */
.ub-dr-grid { width: 100%; border-collapse: collapse; }
.ub-dr-grid th,
.ub-dr-grid td {
  border-bottom: 1px solid var(--ub-border);
  padding: 8px 10px;
  font-size: 13px;
  text-align: left;
}
.ub-dr-grid th {
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font-weight: 600;
  font-size: 12px;
}
.ub-dr-date { font-variant-numeric: tabular-nums; white-space: nowrap; }
.ub-dr-week { color: var(--ub-text-3); white-space: nowrap; }
.ub-dr-people { color: var(--ub-text); font-weight: 500; }
.ub-dr-empty {
  padding: 28px 14px;
  text-align: center;
  color: var(--ub-text-3);
  font-size: 13px;
}
.ub-dr-stats { display: flex; gap: 10px; margin-bottom: 10px; }

/* ---------- 计划表 ---------- */
.ub-pl-form {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 110px auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}
.ub-pl-barwrap {
  height: 8px;
  border-radius: 999px;
  background: var(--ub-surface-2);
  overflow: hidden;
  margin: 4px 0 12px;
}
.ub-pl-bar { height: 100%; width: 0; background: var(--ub-accent); transition: width .2s ease; }
.ub-pl-row {
  display: grid;
  grid-template-columns: 28px 130px minmax(0, 1fr) 60px 32px;
  gap: 10px;
  align-items: center;
  padding: 9px 10px;
  border-bottom: 1px solid var(--ub-border);
  font-size: 13px;
}
.ub-pl-row.is-done .ub-pl-task { color: var(--ub-text-3); text-decoration: line-through; }
.ub-pl-check { display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }
.ub-pl-check input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.ub-pl-check span {
  width: 18px;
  height: 18px;
  border: 1px solid var(--ub-border-2);
  border-radius: 5px;
  display: inline-block;
  position: relative;
}
.ub-pl-check input:checked + span { background: var(--ub-accent); border-color: var(--ub-accent); }
.ub-pl-check input:checked + span::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(42deg);
}
.ub-pl-time { color: var(--ub-text-3); font-size: 12px; }
.ub-pl-task { color: var(--ub-text); font-weight: 500; min-width: 0; overflow-wrap: anywhere; }
.ub-pl-pri {
  font-size: 11.5px;
  text-align: center;
  padding: 2px 6px;
  border-radius: 5px;
}
.ub-pl-pri.is-high { background: #fdecec; color: #a13232; }
.ub-pl-pri.is-mid { background: #fdf3e2; color: #8a6320; }
.ub-pl-pri.is-low { background: #eaf2e6; color: #3f6631; }
.ub-pl-del {
  appearance: none;
  width: 26px;
  height: 26px;
  border: 1px solid var(--ub-border);
  border-radius: 6px;
  background: var(--ub-surface);
  color: var(--ub-text-3);
  cursor: pointer;
  font-size: 11px;
}
.ub-pl-del:hover { border-color: #e2564a; color: #c9362b; }
.ub-pl-empty { padding: 28px 14px; text-align: center; color: var(--ub-text-3); font-size: 13px; }

@media (max-width: 900px) {
  .ub-om-grid, .ub-ar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ub-pl-form { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .ub-pl-form select, .ub-pl-form .ub-btn { grid-column: span 1; }
  .ub-pl-row { grid-template-columns: 26px minmax(0, 1fr) auto; grid-auto-rows: min-content; row-gap: 4px; }
  .ub-pl-time { grid-column: 2; }
  .ub-pl-task { grid-column: 2; }
  .ub-pl-pri { grid-column: 3; justify-self: end; }
  .ub-pl-del { grid-column: 3; }
}
@media (max-width: 560px) {
  .ub-om-grid, .ub-ar-grid { grid-template-columns: minmax(0, 1fr); }
}

@media print {
  .ub-header, .ub-catnav, .ub-footer, .ub-ad, .ub-panel-head .ub-actions,
  .ub-my-bar, .ub-breadcrumb, .ub-crumb, .ub-page-head, .ub-privacy-note,
  .ub-tool-detail, #ub-others,
  .ub-tool-grid > .ub-panel:first-child .ub-actions { display: none !important; }
  .ub-main { padding: 0 !important; }
  .ub-container { max-width: none !important; padding: 0 !important; }
  .ub-tool-grid { display: block !important; }
  .ub-panel { border: 0 !important; box-shadow: none !important; background: #fff !important; }
  .ub-panel-head { border-bottom: 0 !important; margin-bottom: 6px !important; }
  .ub-panel-meta, .ub-tt-add { display: none !important; }
  .ub-om-grid, .ub-ar-grid { grid-template-columns: repeat(3, minmax(0, 1fr)) !important; gap: 14px 20px; }
  .ub-om-item, .ub-ar-item { border: 0; padding: 2px 0; }
  .ub-mt-grid, .ub-tt-grid, .ub-dr-grid { page-break-inside: avoid; }
}

/* 网格容器里的面板必须能收缩，否则周期表这类固定宽内容会把整页撑出横向滚动 */
.ub-tool-grid > .ub-panel { min-width: 0; }
.ub-tool-grid.is-even { align-items: stretch; }
.ub-pt-scroll { max-width: 100%; }

/* ---------- 教育工具：工具条与表单 ---------- */
.ub-mt-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}
.ub-mt-bar .ub-select { width: auto; min-width: 120px; }
.ub-mt-savehint { margin: -2px 0 10px; }
.ub-om-savehint { margin: -2px 0 10px; }
.ub-ar-savehint { margin: -2px 0 10px; }
.ub-pt-savehint { margin: -2px 0 10px; }
@media (max-width: 560px) {
.ub-mt-bar > .ub-select { flex: 1 1 100%; width: 100%; }
.ub-mt-bar > .ub-btn { flex: 1 1 calc(50% - 4px); justify-content: center; }
.ub-mt-bar-3 > .ub-btn { flex: 1 1 calc(33.333% - 6px); }
}
.ub-dr-two {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.ub-pt-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.ub-pt-search { position: relative; display: flex; align-items: center; flex: 1 1 260px; }
.ub-pt-search i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  color: var(--ub-text-3);
  pointer-events: none;
}
.ub-pt-search .ub-input { padding-left: 34px; }
.ub-dr-skips { margin-top: 12px; }
.ub-dr-savehint { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.ub-dr-reset-link {
  appearance: none; border: 0; background: none; padding: 6px 8px; margin: -6px 0 -6px -8px;
  font: inherit; font-size: 12.5px; color: hsl(var(--cat-h, 222) 62% 45%);
  text-decoration: underline; text-underline-offset: 2px; cursor: pointer;
}
.ub-dr-reset-link:hover { color: hsl(var(--cat-h, 222) 66% 36%); }
.ub-dr-person {
  appearance: none; border: 0; background: none; padding: 3px 5px; margin: -3px -5px;
  font: inherit; font-size: 13px; color: inherit; cursor: pointer;
  border-radius: 6px; text-align: left;
}
.ub-dr-person:hover, .ub-dr-person:focus-visible {
  background: hsl(var(--cat-h, 222) 60% 95%);
  color: hsl(var(--cat-h, 222) 58% 38%);
}
html.dark .ub-dr-person:hover, html.dark .ub-dr-person:focus-visible {
  background: hsl(var(--cat-h, 222) 30% 22%);
  color: hsl(var(--cat-h, 222) 62% 78%);
}
.ub-dr-sep { color: var(--ub-text-3); }
.ub-dr-swap {
  font: inherit; font-size: 13px; padding: 2px 6px; border-radius: 6px;
  border: 1px solid hsl(var(--cat-h, 222) 52% 72%);
  background: var(--ub-surface); color: var(--ub-text);
}
@media print {
  .ub-dr-person { background: none !important; color: inherit !important; padding: 0; margin: 0; }
}
.ub-pl-filter {
  appearance: none;
  padding: 5px 12px;
  min-height: 28px;
  border: 1px solid var(--ub-border);
  border-radius: 999px;
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font: inherit;
  font-size: 12px;
  line-height: 1.3;
  cursor: pointer;
  white-space: nowrap;
}
.ub-pl-filter:hover { border-color: var(--ub-border-2); color: var(--ub-text); }
@media (max-width: 560px) {
.ub-pl-filter { min-height: 32px; padding: 6px 14px; }
.ub-actions-4 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ub-actions-4 .ub-btn { flex: none; width: 100%; justify-content: center; }
}
.ub-pl-filter[aria-pressed="true"] {
  border-color: hsl(var(--cat-h, 222) 52% 72%);
  background: hsl(var(--cat-h, 222) 74% 96%);
  color: hsl(var(--cat-h, 222) 58% 38%);
}
html.dark .ub-pl-filter[aria-pressed="true"] {
  border-color: hsl(var(--cat-h, 222) 46% 42%);
  background: hsl(var(--cat-h, 222) 32% 22%);
  color: hsl(var(--cat-h, 222) 62% 78%);
}
.ub-pl-statline {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--ub-text-2);
}
@media (max-width: 720px) {
  .ub-dr-two { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .ub-dr-two > label:last-child { grid-column: 1 / -1; }
  .ub-pl-form { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important; }
}

.ub-pt-swipe { display: none; }
@media (max-width: 760px) {
  .ub-pt-swipe {
    display: flex;
    align-items: center;
    gap: 7px;
    margin: 2px 0 0;
    font-size: 12.5px;
    line-height: 1.55;
    color: var(--ub-text-3);
  }
  .ub-pt-swipe i { color: var(--ub-accent); }
}
/* 口算 / 算术：五个动作按钮在窄屏铺 3 列，避免最后一个被拉成整行 */
@media (max-width: 560px) {
  .ub-actions-5 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .ub-actions-5 .ub-btn { width: 100%; justify-content: center; padding-left: 8px; padding-right: 8px; min-width: 0; }
  .ub-actions-5 .ub-btn span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}
@media print {
  .ub-tt-time-input { border: 0; padding: 0; background: transparent; }
}
/* ---------- 打印：只留内容，标题单独一行 ---------- */
.ub-print-head { display: none; }
.ub-print-head {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ub-text);
}
.ub-pt-fmark.is-link {
  appearance: none;
  justify-content: center;
  padding: 0 2px;
  border: 1px dashed var(--ub-border-2);
  border-radius: 6px;
  background: transparent;
  color: var(--ub-text-3);
  font-family: inherit;
  font-size: 9px;
  cursor: pointer;
}
.ub-pt-fmark.is-link:hover { border-color: var(--ub-accent); color: var(--ub-accent); }
.ub-pt-legend-item {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 7px;
  border: 1px solid var(--ub-border);
  border-radius: 6px;
  background: var(--ub-surface-2);
  color: var(--ub-text-2);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
}
.ub-pt-legend-item:hover { border-color: var(--ub-border-2); }
.ub-pt-legend-item.is-on { border-color: var(--ub-accent); background: var(--ub-accent-soft); color: var(--ub-accent); }
.ub-pt-legend-item em { font-style: normal; color: var(--ub-text-3); }
.ub-pt-legend-item.is-on em { color: var(--ub-accent); }
.ub-pl-edit {
  box-sizing: border-box;
  width: 100%;
  height: 28px;
  padding: 0 8px;
  border: 1px solid var(--ub-border-2);
  border-radius: 6px;
  background: var(--ub-surface);
  color: var(--ub-text);
  font-family: inherit;
  font-size: 13px;
}
.ub-pl-edit:focus { outline: 2px solid var(--ub-accent); outline-offset: -2px; }
@media print {
  .ub-print-hide { display: none !important; }
  .ub-print-head { display: block !important; }
  .ub-pt-scroll { overflow: visible !important; max-width: none !important; }
  .ub-pt-detail, .ub-pt-legend { display: none !important; }
}
/* ---------- 通用：屏幕阅读器专用 ---------- */
.ub-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 渐变生成器 */
.ub-grad-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:16px;align-items:start}
.ub-grad-preview{height:300px;border-radius:14px;border:1px solid var(--ub-border);margin-bottom:14px}
.ub-grad-presets-label{display:block;font-size:11px;color:var(--ub-text-3);margin-bottom:6px}
.ub-grad-presets{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.ub-grad-preset{position:relative;height:58px;border:1px solid var(--ub-border);border-radius:10px;cursor:pointer;overflow:hidden;padding:0;display:flex;align-items:flex-end}
.ub-grad-preset span{width:100%;font-size:11px;line-height:1.4;color:#fff;background:rgba(10,19,36,.42);padding:3px 6px;text-align:left}
.ub-grad-colors{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.ub-grad-color{width:100%;height:38px;padding:3px;border:1px solid var(--ub-border);border-radius:8px;background:var(--ub-surface);cursor:pointer}
.ub-grad-color:disabled{opacity:.45;cursor:not-allowed}
.ub-grad-three{margin-top:12px}
.ub-grad-row{display:grid;grid-template-columns:minmax(0,1fr) 92px;gap:10px;align-items:end;margin-top:12px}
.ub-grad-range-head{display:flex;justify-content:space-between;gap:8px}
.ub-grad-range-head em{font-style:normal;font-size:11.5px;color:var(--ub-text-3);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-grad-range{width:100%;accent-color:var(--ub-accent);margin-top:4px}
.ub-grad-angle-num{padding:8px 10px;font-size:13px}
.ub-grad-type{margin-top:12px}
.ub-grad-actions{margin-top:12px}
.ub-grad-css-wrap{margin-top:12px}
.ub-textarea.ub-grad-css{min-height:76px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.6}
@media (max-width:860px){
  .ub-grad-grid{grid-template-columns:1fr}
  .ub-grad-preview{height:220px}
  .ub-grad-presets{grid-template-columns:repeat(5,minmax(0,1fr))}
}
@media (max-width:560px){
  .ub-grad-colors{grid-template-columns:repeat(3,minmax(0,1fr))}
  .ub-grad-row{grid-template-columns:minmax(0,1fr) 84px}
  .ub-grad-presets{grid-template-columns:repeat(3,minmax(0,1fr))}
}
/* 日期计算 */
.ub-date-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px;align-items:start}
.ub-date-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.ub-date-presets{margin-top:12px}
.ub-date-stats{margin-top:14px;grid-template-columns:repeat(4,minmax(0,1fr))}
.ub-date-offset{display:grid;grid-template-columns:minmax(0,1fr) 116px;gap:12px;margin-top:12px}
.ub-date-result{margin-top:14px;border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2);padding:14px 16px;display:flex;flex-direction:column;gap:2px}
.ub-date-result strong{font-size:28px;line-height:1.3;color:var(--ub-text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.01em}
.ub-date-weekday{font-size:12px;color:var(--ub-text-3)}
@media (max-width:860px){
  .ub-date-grid{grid-template-columns:1fr}
  .ub-date-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .ub-date-fields{grid-template-columns:1fr}
  .ub-date-offset{grid-template-columns:1fr}
}
/* 随机抽签 */
.ub-lucky-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:16px;align-items:start}
.ub-textarea.ub-lucky-list{min-height:250px;line-height:1.8}
.ub-lucky-norepeat{margin-top:12px}
.ub-lucky-stats{margin-top:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-lucky-result{min-height:150px;border:1px solid var(--ub-border);border-radius:12px;background:var(--ub-surface-2);padding:14px 16px;display:flex;flex-direction:column;justify-content:center;gap:6px}
.ub-lucky-label,.ub-lucky-history-label{font-size:11px;color:var(--ub-text-3)}
.ub-lucky-result-names{display:flex;flex-wrap:wrap;gap:8px 14px}
.ub-lucky-result-names strong{font-size:26px;line-height:1.35;color:var(--ub-text);font-weight:600}
.ub-lucky-idle{font-size:13px;color:var(--ub-text-3)}
.ub-lucky-controls{display:grid;grid-template-columns:104px minmax(0,1fr);gap:12px;align-items:end;margin-top:14px}
.ub-lucky-count .ub-input{padding:8px 10px}
.ub-lucky-actions{flex-wrap:wrap}
.ub-lucky-history-wrap{margin-top:14px}
.ub-lucky-history{max-height:190px;overflow:auto;margin-top:6px;border-top:1px solid var(--ub-border)}
.ub-lucky-row{display:flex;gap:10px;align-items:baseline;padding:7px 0;border-bottom:1px solid var(--ub-border)}
.ub-lucky-round{font-size:11px;color:var(--ub-text-3);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;min-width:22px}
.ub-lucky-names em{font-style:normal;font-size:13px;color:var(--ub-text-2);margin-right:8px}
.ub-lucky-empty{display:block;padding:12px 0;font-size:12px;color:var(--ub-text-3)}
@media (max-width:860px){
  .ub-lucky-grid{grid-template-columns:1fr}
  .ub-textarea.ub-lucky-list{min-height:180px}
  .ub-lucky-result-names strong{font-size:22px}
}
@media (max-width:560px){
  .ub-lucky-controls{grid-template-columns:1fr}
}
/* 视频截图 */
.ub-frame-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:16px;align-items:start}
.ub-frame-drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:300px;border:1px dashed var(--ub-border-2);border-radius:12px;background:var(--ub-surface-2);color:var(--ub-text-3);cursor:pointer;text-align:center;padding:24px}
.ub-frame-drop i{font-size:24px;color:var(--ub-text-3)}
.ub-frame-drop strong{font-size:14px;color:var(--ub-text)}
.ub-frame-drop span{font-size:12px;line-height:1.6;max-width:300px}
.ub-frame-drop:hover{border-color:var(--ub-accent);color:var(--ub-accent)}
.ub-frame-video{display:none;width:100%;border-radius:12px;background:#000;max-height:420px}
.ub-frame-actions{margin-top:12px}
.ub-frame-time{display:grid;grid-template-columns:minmax(0,1fr) 96px;gap:10px;align-items:center;margin-top:6px}
.ub-frame-range{width:100%;accent-color:var(--ub-accent)}
.ub-frame-num{padding:7px 10px;font-size:13px}
.ub-frame-stats{margin-top:14px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-frame-buttons{margin-top:12px}
.ub-frame-canvas{display:none;width:100%;margin-top:12px;border-radius:10px;border:1px solid var(--ub-border);background:var(--ub-surface-2)}
@media (max-width:860px){
  .ub-frame-grid{grid-template-columns:1fr}
  .ub-frame-drop{min-height:200px}
  .ub-frame-time{grid-template-columns:minmax(0,1fr) 84px}
}
/* 占位文本生成 */
.ub-lorem-grid{display:grid;grid-template-columns:340px minmax(0,1fr);gap:16px;align-items:stretch}
.ub-lorem-grid .ub-panel{display:flex;flex-direction:column}
.ub-lorem-fields{display:flex;flex-direction:column;gap:12px}
.ub-lorem-fields .ub-check{margin-top:2px}
.ub-lorem-stats{margin-top:14px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-textarea.ub-lorem-output{min-height:360px;flex:1;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.7}
@media (max-width:860px){
  .ub-lorem-grid{grid-template-columns:1fr}
  .ub-textarea.ub-lorem-output{min-height:240px}
}
/* 文字转语音 */
.ub-tts-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:16px;align-items:stretch}
.ub-tts-grid .ub-panel{display:flex;flex-direction:column}
.ub-textarea.ub-tts-text{min-height:280px;flex:1}
.ub-tts-sliders{display:flex;flex-direction:column;gap:12px;margin-top:12px}
.ub-tts-range-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.ub-tts-range-head em{font-style:normal;font-size:11.5px;color:var(--ub-text-3);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-tts-range{width:100%;accent-color:var(--ub-accent);margin-top:4px}
.ub-tts-stats{margin-top:14px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-tts-actions{margin-top:12px}
@media (max-width:860px){
  .ub-tts-grid{grid-template-columns:1fr}
  .ub-textarea.ub-tts-text{min-height:200px}
}
/* 番茄钟 */
.ub-pomo-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:16px;align-items:start}
.ub-pomo-stage{display:flex;flex-direction:column;align-items:center;gap:16px;padding:8px 0 4px}
.ub-pomo-dial{position:relative;width:210px;height:210px}
.ub-pomo-dial svg{width:100%;height:100%;display:block}
.ub-pomo-track{fill:none;stroke:var(--ub-border);stroke-width:7}
.ub-pomo-ring{fill:none;stroke:var(--ub-accent);stroke-width:7;stroke-linecap:round;transform:rotate(-90deg);transform-origin:60px 60px;transition:stroke-dashoffset .25s linear}
.ub-pomo-ring.is-break{stroke:var(--ub-ok)}
.ub-pomo-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
.ub-pomo-center strong{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:36px;font-weight:600;letter-spacing:.02em;color:var(--ub-text);line-height:1.1}
.ub-pomo-center span{font-size:12px;color:var(--ub-text-3)}
.ub-pomo-actions{justify-content:center;flex-wrap:wrap}
.ub-pomo-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--ub-text-3)}
.ub-pomo-dots{display:inline-flex;gap:5px}
.ub-pomo-dot{width:8px;height:8px;border-radius:50%;background:var(--ub-border-2)}
.ub-pomo-dot.is-on{background:var(--ub-accent)}
.ub-pomo-count strong{color:var(--ub-text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-pomo-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.ub-pomo-stats{margin-top:14px}
.ub-pomo-tips{margin-top:14px;font-size:12px;color:var(--ub-text-2)}
.ub-pomo-tips>span{display:block;font-size:11px;color:var(--ub-text-3);margin-bottom:6px}
.ub-pomo-tips ul{margin:0;padding-left:16px}
.ub-pomo-tips li{margin:4px 0;line-height:1.6}
@media (max-width:860px){
  .ub-pomo-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .ub-pomo-fields{grid-template-columns:1fr}
  .ub-pomo-dial{width:184px;height:184px}
  .ub-pomo-center strong{font-size:31px}
}
/* 工资个税计算器 */
.ub-tax-inputs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
@media (max-width:900px){
  .ub-tax-inputs{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .ub-tax-inputs{grid-template-columns:1fr}
}
/* 房贷计算器 */
.ub-loan-wrap{display:flex;flex-direction:column;gap:16px}
.ub-loan-inputs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.ub-input-unit{position:relative;display:block}
.ub-input-unit .ub-input{padding-right:46px}
.ub-input-unit em{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-style:normal;font-size:12px;color:var(--ub-text-3);pointer-events:none}
.ub-loan-stats{margin-top:2px;grid-template-columns:repeat(4,minmax(0,1fr))}
.ub-loan-schedule-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:14px 0 8px;font-size:12px;color:var(--ub-text-3)}
.ub-loan-scroll{max-height:330px;overflow:auto;border:1px solid var(--ub-border);border-radius:10px;background:var(--ub-surface-2)}
.ub-loan-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:12px}
.ub-loan-table th,.ub-loan-table td{padding:7px 10px;text-align:right;white-space:nowrap}
.ub-loan-table th:first-child,.ub-loan-table td:first-child{text-align:left}
.ub-loan-table th{position:sticky;top:0;background:var(--ub-surface);color:var(--ub-text-3);font-weight:500;border-bottom:1px solid var(--ub-border);z-index:1}
.ub-loan-table td{border-bottom:1px solid var(--ub-border);color:var(--ub-text-2);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-loan-table tbody tr:last-child td{border-bottom:0}
.ub-loan-table th:nth-child(1){width:9%}
.ub-loan-table th:nth-child(2){width:23%}
.ub-loan-table th:nth-child(3){width:22%}
.ub-loan-table th:nth-child(4){width:22%}
.ub-loan-table th:nth-child(5){width:24%}
@media (max-width:900px){
  .ub-loan-inputs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ub-loan-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .ub-loan-inputs{grid-template-columns:1fr}
  .ub-loan-stats{grid-template-columns:1fr}
  .ub-loan-table{font-size:11px}
  .ub-loan-table th,.ub-loan-table td{padding:6px 6px}
}
/* 文件哈希校验 */
.ub-fh-wrap{display:flex;flex-direction:column;gap:16px}
.ub-fh-drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:26px 18px;border:1.5px dashed var(--ub-border-2);border-radius:12px;background:var(--ub-surface-2);cursor:pointer;text-align:center;transition:border-color .15s,background .15s}
.ub-fh-drop:hover,.ub-fh-drop.is-drag{border-color:var(--ub-accent);background:var(--ub-accent-soft)}
.ub-fh-drop:focus-visible{outline:2px solid var(--ub-accent);outline-offset:2px}
.ub-fh-drop i{font-size:22px;color:var(--ub-accent)}
.ub-fh-drop strong{font-size:14px;color:var(--ub-text);font-weight:600;word-break:break-all}
.ub-fh-drop span{font-size:11.5px;color:var(--ub-text-3);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.ub-fh-drop em{font-style:normal;font-size:11.5px;color:var(--ub-text-3)}
.ub-fh-row{display:grid;grid-template-columns:.8fr 1.6fr;gap:14px;align-items:end;margin-top:14px}
.ub-fh-stats{margin:0;grid-template-columns:repeat(3,minmax(0,1fr))}
.ub-textarea.ub-fh-output{min-height:74px;margin-top:10px}
.ub-fh-compare-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:end;margin-top:12px}
.ub-fh-compare{font-size:12px;font-weight:600;padding-bottom:9px;white-space:nowrap}
.ub-fh-compare.is-match{color:var(--ub-ok)}
.ub-fh-compare.is-mismatch{color:#b3261e}
@media (max-width:720px){
  .ub-fh-row{grid-template-columns:1fr}
  .ub-fh-compare-row{grid-template-columns:1fr}
  .ub-fh-compare{padding-bottom:0}
}
/* 批量查找替换 */
.ub-textarea.ub-rp-text{min-height:168px}
.ub-rp-opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px}
@media (max-width:720px){
  .ub-rp-opts{grid-template-columns:1fr}
}
@media (max-width:720px){
  .ub-tz-controls{grid-template-columns:1fr}
  .ub-tz-controls-action{padding-bottom:0}
  .ub-tz-grid{grid-template-columns:1fr}
}