@charset "UTF-8";
/* ==========================================================================
   themes.css —— 后台可切换的三套风格
     data-theme="liquid"  液态玻璃（style.css 基线，含 SVG 边缘折射与动态高光）
     data-theme="normal"  普通模式（白卡片 / 细边框 / 轻阴影 / 无毛玻璃）
     data-theme="flat"    扁平化（纯色块 / 直角 / 2px 描边 / 零阴影 / 零渐变）
   同时把后台自定义的主色 --accent 贯通到按钮、进度、标签、圆环等处。
   ========================================================================== */

/* --------------------- 主色贯通（所有主题通用） -------------------------- */
@supports (color: color-mix(in srgb, red, blue)) {
  :root {
    --accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);
  }
  .btn-primary {
    background: linear-gradient(135deg,
      color-mix(in srgb, var(--accent) 82%, #ffffff),
      color-mix(in srgb, var(--accent) 88%, #7a4fe0));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.55), 0 12px 28px color-mix(in srgb, var(--accent) 34%, transparent);
  }
  .brand-mark, .size-picker button.is-active, .chip.is-active {
    background: linear-gradient(135deg,
      color-mix(in srgb, var(--accent) 74%, #8fb4ff),
      color-mix(in srgb, var(--accent) 62%, #966cf0));
  }
  .progress-fill {
    background: linear-gradient(90deg, var(--accent),
      color-mix(in srgb, var(--accent) 55%, #d084ee));
  }
  .ring {
    background: conic-gradient(from -90deg, var(--accent) 0%,
      color-mix(in srgb, var(--accent) 65%, #966cf0) calc(var(--pct) * 1%),
      rgba(255,255,255,.62) calc(var(--pct) * 1%));
  }
  .stat-chip, .tag-cat, .count-pill, .rule-list b, .eyebrow, .q-index,
  .link-btn, .answer-toggle, .dock-tab.is-active, .match-badge { color: var(--accent); }
  .size-picker button.is-active, .chip.is-active { box-shadow: 0 7px 18px color-mix(in srgb, var(--accent) 32%, transparent), inset 0 1px 0 rgba(255,255,255,.5); }
}

/* ==========================================================================
   普通模式：干净的实体白卡片，不使用 backdrop-filter
   ========================================================================== */
html[data-theme="normal"] {
  --glass-a: #ffffff; --glass-b: #ffffff; --glass-line: #e2e6f0;
  --shadow: 0 2px 12px rgba(30, 40, 80, .07);
  --r-xl: 16px; --r-lg: 14px; --r-md: 12px; --r-sm: 10px;
}
html[data-theme="normal"] body { background: #f4f6fb; }
html[data-theme="normal"] .wallpaper { display: none; }
html[data-theme="normal"] .glass,
html[data-theme="normal"] .glass-deep,
html[data-theme="normal"] .glass-soft {
  background: #fff; border: 1px solid #e2e6f0;
  -webkit-backdrop-filter: none; backdrop-filter: none;
  box-shadow: 0 2px 12px rgba(30, 40, 80, .07);
}
html[data-theme="normal"] .glass::before,
html[data-theme="normal"] .glass::after { display: none; }
html[data-theme="normal"] .glass-inset { background: #f7f9fd; border: 1px solid #e6eaf3; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
html[data-theme="normal"] .dock { border-radius: 14px; box-shadow: 0 4px 16px rgba(30,40,80,.09); }
html[data-theme="normal"] .dock-nav { background: #f2f5fb; box-shadow: none; border-radius: 10px; }
html[data-theme="normal"] .dock-tab { border-radius: 8px; }
html[data-theme="normal"] .dock-tab.is-active { background: #fff; box-shadow: 0 1px 4px rgba(30,40,80,.1); transform: none; }
html[data-theme="normal"] .brand-mark { border-radius: 10px; box-shadow: none; animation: none; }
html[data-theme="normal"] .btn {
  background: #fff; border: 1px solid #dde2ee; border-radius: 10px;
  box-shadow: 0 1px 3px rgba(30,40,80,.06); -webkit-backdrop-filter: none; backdrop-filter: none;
}
html[data-theme="normal"] .btn:hover { box-shadow: 0 4px 12px rgba(30,40,80,.1); }
html[data-theme="normal"] .btn-primary { border-color: transparent; box-shadow: 0 4px 12px rgba(74,99,231,.24); }
html[data-theme="normal"] .btn-ghost { background: #f7f9fd; }
html[data-theme="normal"] .glass-input,
html[data-theme="normal"] .glass-select,
html[data-theme="normal"] .search-box,
html[data-theme="normal"] textarea { background: #fff; border: 1px solid #dde2ee; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
html[data-theme="normal"] .tag,
html[data-theme="normal"] .chip,
html[data-theme="normal"] .stat-chip,
html[data-theme="normal"] .count-pill,
html[data-theme="normal"] .icon-btn,
html[data-theme="normal"] .toast { border-radius: 8px; box-shadow: none; }
html[data-theme="normal"] .tag { background: #f3f5fa; border-color: #e8ecf5; }
html[data-theme="normal"] .q-card { box-shadow: 0 2px 10px rgba(30,40,80,.06); }
html[data-theme="normal"] .q-card:hover { box-shadow: 0 8px 22px rgba(30,40,80,.1); }
html[data-theme="normal"] .answer-text { background: #f7f9fd; border-color: #e8ecf5; }
html[data-theme="normal"] .answer-panel { background: #f5f9ff; border-color: #e2eaf8; box-shadow: none; }
html[data-theme="normal"] .progress-track { background: #e9edf6; box-shadow: none; }
html[data-theme="normal"] .progress-fill { box-shadow: none; }
html[data-theme="normal"] .size-picker { background: #f1f4fa; box-shadow: none; }
html[data-theme="normal"] .size-picker button.is-active { box-shadow: 0 3px 8px rgba(74,99,231,.24); transform: none; }
html[data-theme="normal"] .modal-backdrop { -webkit-backdrop-filter: none; backdrop-filter: none; background: rgba(24,32,66,.42); }
html[data-theme="normal"] .modal-card { box-shadow: 0 24px 60px rgba(24,32,66,.22); }
html[data-theme="normal"] .ring::before { background: #fff; -webkit-backdrop-filter: none; backdrop-filter: none; box-shadow: none; }
html[data-theme="normal"] .ring { box-shadow: none; }
html[data-theme="normal"] .wrong-item,
html[data-theme="normal"] .rs-item { background: #f8fafd; border-color: #e9edf5; box-shadow: none; }
html[data-theme="normal"] .toast { background: #fff; box-shadow: 0 10px 28px rgba(30,40,80,.14); -webkit-backdrop-filter: none; backdrop-filter: none; }
html[data-theme="normal"] .popover { box-shadow: 0 12px 30px rgba(30,40,80,.16); }
html[data-theme="normal"] .q-card .glass::after { display: none; }

/* ==========================================================================
   扁平化：纯色块、直角、2px 描边、零阴影、零渐变、零毛玻璃
   ========================================================================== */
html[data-theme="flat"] {
  --glass-a: #ffffff; --glass-b: #ffffff; --glass-line: #1b2033;
  --shadow: none;
  --r-xl: 0px; --r-lg: 0px; --r-md: 0px; --r-sm: 0px;
  --ink-3: #5f667c;
}
html[data-theme="flat"] body { background: #e9ecf2; }
html[data-theme="flat"] .wallpaper { display: none; }
html[data-theme="flat"] .glass,
html[data-theme="flat"] .glass-deep,
html[data-theme="flat"] .glass-soft {
  background: #fff; border: 2px solid var(--ink); box-shadow: none;
  -webkit-backdrop-filter: none; backdrop-filter: none;
}
html[data-theme="flat"] .glass::before,
html[data-theme="flat"] .glass::after { display: none; }
html[data-theme="flat"] .glass-inset { background: #f1f3f8; border: 2px solid var(--ink); box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
html[data-theme="flat"] .dock { border: 2px solid var(--ink); box-shadow: none; padding: 6px; }
html[data-theme="flat"] .dock-nav { background: transparent; border: 2px solid var(--ink); box-shadow: none; }
html[data-theme="flat"] .dock-tab { border-radius: 0; font-weight: 750; }
html[data-theme="flat"] .dock-tab.is-active { background: var(--accent); color: #fff; box-shadow: none; transform: none; }
html[data-theme="flat"] .dock-meta { border-radius: 0; border: 2px solid var(--ink); }
html[data-theme="flat"] .brand-mark { background: var(--accent); border-radius: 0; box-shadow: none; animation: none; }
html[data-theme="flat"] .btn,
html[data-theme="flat"] .btn-primary,
html[data-theme="flat"] .btn-ghost {
  border-radius: 0; border: 2px solid var(--ink); background: #fff; box-shadow: none;
  -webkit-backdrop-filter: none; backdrop-filter: none; font-weight: 750;
}
html[data-theme="flat"] .btn:hover { transform: none; background: #f1f3f8; box-shadow: none; }
html[data-theme="flat"] .btn:active { transform: translate(2px, 2px); }
html[data-theme="flat"] .btn-primary { background: var(--accent); color: #fff; }
html[data-theme="flat"] .btn-danger-solid { background: var(--bad); color: #fff; }
html[data-theme="flat"] .btn:disabled { opacity: .4; }
html[data-theme="flat"] .glass-input,
html[data-theme="flat"] .glass-select,
html[data-theme="flat"] .search-box,
html[data-theme="flat"] textarea {
  background: #fff; border: 2px solid var(--ink); box-shadow: none; border-radius: 0;
  -webkit-backdrop-filter: none; backdrop-filter: none;
}
html[data-theme="flat"] .tag,
html[data-theme="flat"] .chip,
html[data-theme="flat"] .stat-chip,
html[data-theme="flat"] .count-pill,
html[data-theme="flat"] .icon-btn { border-radius: 0; }
html[data-theme="flat"] .tag,
html[data-theme="flat"] .chip,
html[data-theme="flat"] .stat-chip,
html[data-theme="flat"] .count-pill,
html[data-theme="flat"] .icon-btn { border: 2px solid var(--ink); box-shadow: none; background: #fff; }
html[data-theme="flat"] .tag-cat,
html[data-theme="flat"] .stat-chip,
html[data-theme="flat"] .count-pill { background: var(--accent-soft); }
html[data-theme="flat"] .chip.is-active,
html[data-theme="flat"] .size-picker button.is-active { background: var(--accent); color: #fff; box-shadow: none; transform: none; }
html[data-theme="flat"] .q-card:hover { transform: none; }
html[data-theme="flat"] .answer-text { background: #f1f3f8; border: 2px solid var(--ink); }
html[data-theme="flat"] .answer-panel { background: #f1f3f8; border: 2px solid var(--ink); box-shadow: none; }
html[data-theme="flat"] .progress-track { background: #fff; border: 2px solid var(--ink); box-shadow: none; height: 14px; }
html[data-theme="flat"] .progress-fill { background: var(--accent); box-shadow: none; }
html[data-theme="flat"] .size-picker { background: #fff; border: 2px solid var(--ink); box-shadow: none; }
html[data-theme="flat"] .size-picker button { border-radius: 0; }
html[data-theme="flat"] .modal-backdrop { -webkit-backdrop-filter: none; backdrop-filter: none; background: rgba(24,32,66,.55); }
html[data-theme="flat"] .modal-card { box-shadow: none; }
html[data-theme="flat"] .ring { box-shadow: none; border: 2px solid var(--ink); }
html[data-theme="flat"] .ring::before { background: #fff; -webkit-backdrop-filter: none; backdrop-filter: none; box-shadow: none; }
html[data-theme="flat"] .wrong-item,
html[data-theme="flat"] .rs-item { background: #fff; border: 2px solid var(--ink); box-shadow: none; }
html[data-theme="flat"] .toast { background: #fff; border: 2px solid var(--ink); border-radius: 0; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
html[data-theme="flat"] .popover { box-shadow: none; }
html[data-theme="flat"] .eyebrow { letter-spacing: 1px; }
html[data-theme="flat"] .view-head h1 { font-weight: 800; }
html[data-theme="flat"] .grade-yes.is-picked { background: var(--good); }
html[data-theme="flat"] .grade-no.is-picked { background: var(--bad); }

/* --------------------- 后台专用组件（三主题共用） ----------------------- */
.admin-shell { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 18px; align-items: start; }
.admin-side { padding: 18px 14px; border-radius: var(--r-xl); position: sticky; top: 108px; }
.admin-side .side-title { margin: 0 0 14px; padding: 0 8px; font-size: 11px; font-weight: 800; letter-spacing: 2px; color: var(--ink-3); }
.admin-nav { display: grid; gap: 4px; }
.admin-nav button { display: flex; align-items: center; gap: 10px; width: 100%; padding: 11px 12px; border: 0; border-radius: 12px;
  background: transparent; color: var(--ink-2); font-size: 13.5px; font-weight: 650; text-align: left; transition: all .3s var(--ease); }
.admin-nav button:hover { background: rgba(255,255,255,.6); color: var(--ink); }
.admin-nav button.is-active { color: #fff; background: linear-gradient(135deg, #6d84f5, #966cf0); box-shadow: 0 6px 16px rgba(90,100,230,.28); }
.admin-nav button.danger-nav:not(.is-active) { color: var(--bad); }
.admin-nav .ico { width: 17px; height: 17px; }
.admin-side-foot { margin-top: 18px; padding: 12px 10px 0; border-top: 1px solid rgba(255,255,255,.8); font-size: 11.5px; color: var(--ink-3); line-height: 1.8; }
.admin-main { min-width: 0; }
.admin-section { display: none; }
.admin-section.is-active { display: block; animation: viewIn .45s var(--ease) both; }
.admin-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 14px 20px; border-radius: var(--r-lg); margin-bottom: 16px; }
.admin-bar h2 { margin: 0; font-size: 18px; }
.admin-bar .bar-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat-card { padding: 18px; border-radius: var(--r-lg); }
.stat-card b { display: block; font-size: 28px; line-height: 1.15; font-variant-numeric: tabular-nums; }
.stat-card span { font-size: 12px; color: var(--ink-3); }
.kv-list { display: grid; gap: 8px; font-size: 12.5px; }
.kv-list div { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px dashed rgba(90,100,150,.18); }
.kv-list b { font-weight: 650; color: var(--ink); word-break: break-all; text-align: right; }

.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.admin-table th, .admin-table td { padding: 11px 12px; text-align: left; border-bottom: 1px solid rgba(255,255,255,.85); vertical-align: top; }
.admin-table th { font-size: 11.5px; color: var(--ink-3); font-weight: 700; letter-spacing: .4px; }
.admin-table td .cell-stem { font-weight: 650; line-height: 1.55; }
.admin-table td .cell-meta { font-size: 11px; color: var(--ink-3); margin-top: 4px; }
.admin-table tr:hover td { background: rgba(255,255,255,.4); }
.table-wrap { overflow-x: auto; border-radius: var(--r-md); }
.row-check { width: 16px; height: 16px; accent-color: var(--accent); }

.theme-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.theme-card { padding: 14px; border-radius: var(--r-lg); border: 2px solid transparent; cursor: pointer; transition: all .35s var(--ease); }
.theme-card:hover { transform: translateY(-3px); }
.theme-card.is-active { border-color: var(--accent); box-shadow: 0 10px 26px rgba(74,99,231,.2); }
.theme-preview { height: 96px; border-radius: 12px; padding: 12px; margin-bottom: 12px; overflow: hidden; }
.theme-preview .pv-bar { height: 10px; border-radius: 6px; margin-bottom: 8px; }
.theme-preview .pv-card { height: 42px; border-radius: 8px; }
.pv-normal { background: #f4f6fb; border: 1px solid #e2e6f0; }
.pv-normal .pv-bar { background: #4a63e7; }
.pv-normal .pv-card { background: #fff; border: 1px solid #e2e6f0; box-shadow: 0 2px 8px rgba(30,40,80,.08); }
.pv-flat { background: #e9ecf2; border: 2px solid #1b2033; }
.pv-flat .pv-bar { background: #1b2033; border-radius: 0; }
.pv-flat .pv-card { background: #fff; border: 2px solid #1b2033; border-radius: 0; }
.pv-liquid { background: linear-gradient(135deg,#c9d8ff,#ffd6e8 55%,#c7f0e3); position: relative; }
.pv-liquid .pv-bar { background: rgba(255,255,255,.7); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); border: 1px solid #fff; }
.pv-liquid .pv-card { background: linear-gradient(135deg,rgba(255,255,255,.78),rgba(255,255,255,.35)); border: 1px solid rgba(255,255,255,.9); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); box-shadow: inset 0 1px 0 #fff, 0 8px 18px rgba(38,50,105,.14); }
.theme-card h4 { margin: 0 0 4px; font-size: 14px; }
.theme-card p { margin: 0; font-size: 11.5px; color: var(--ink-3); line-height: 1.6; }
.swatch-row { display: flex; gap: 9px; flex-wrap: wrap; align-items: center; }
.swatch { width: 32px; height: 32px; border-radius: 50%; border: 2px solid rgba(255,255,255,.9); box-shadow: 0 3px 10px rgba(30,40,80,.16); cursor: pointer; transition: transform .3s var(--ease); }
.swatch:hover { transform: scale(1.15); }
.swatch.is-active { outline: 2px solid var(--ink); outline-offset: 2px; }
.switch { display: inline-flex; align-items: center; gap: 9px; font-size: 13px; font-weight: 600; color: var(--ink-2); cursor: pointer; }
.switch input { width: 18px; height: 18px; accent-color: var(--accent); }
.setting-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 14px 0; border-bottom: 1px dashed rgba(90,100,150,.2); }
.setting-row:last-child { border-bottom: 0; }
.setting-row label { font-size: 13px; font-weight: 650; }
.setting-row small { display: block; font-weight: 400; font-size: 11.5px; color: var(--ink-3); margin-top: 3px; }
.setting-row .glass-input, .setting-row .glass-select { width: min(260px, 100%); }
.danger-zone { border-color: rgba(223,79,102,.5) !important; }
.danger-zone h3 { color: var(--bad); }
.danger-note { padding: 13px 16px; border-radius: var(--r-md); font-size: 12.8px; line-height: 1.8;
  background: var(--bad-soft); color: #a83147; border: 1px solid rgba(223,79,102,.22); margin-bottom: 14px; }
.file-list { max-height: 220px; overflow: auto; font-size: 11.5px; font-family: ui-monospace, Consolas, monospace;
  padding: 12px; border-radius: var(--r-md); background: rgba(255,255,255,.5); border: 1px solid rgba(255,255,255,.85); }
.file-list div { padding: 2px 0; border-bottom: 1px dotted rgba(90,100,150,.16); word-break: break-all; }
.mode-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.mode-card { padding: 20px; border-radius: var(--r-lg); border: 2px solid transparent; cursor: pointer; text-align: left;
  background: rgba(255,255,255,.44); transition: all .4s var(--ease); }
.mode-card:hover { transform: translateY(-3px); background: rgba(255,255,255,.7); }
.mode-card.is-active { border-color: var(--accent); background: rgba(255,255,255,.8); box-shadow: 0 12px 30px rgba(74,99,231,.18); }
.mode-card .mc-ico { font-size: 26px; display: block; margin-bottom: 10px; }
.mode-card h3 { margin: 0 0 6px; font-size: 16px; }
.mode-card p { margin: 0; font-size: 12.5px; line-height: 1.7; color: var(--ink-2); }
.server-badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 999px;
  font-size: 11.5px; font-weight: 700; color: var(--good); background: var(--good-soft); border: 1px solid rgba(255,255,255,.8); }

@media (max-width: 900px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-side { position: static; }
  .admin-nav { grid-template-columns: repeat(3, 1fr); }
  .admin-side .side-title, .admin-side-foot { display: none; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .theme-cards { grid-template-columns: 1fr; }
  .mode-cards { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .admin-nav { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}