/* 家庭共进 · 知识库
 * 设计令牌参考 shadcn/ui（CSS 变量、半径、focus ring）与 VitePress（文档布局）。
 * 无外部字体 / 无 CDN / 无网络请求。
 */
:root {
  --bg: #fbf8f3;
  --surface: #fffdf9;
  --surface-2: #f6f0e7;
  --fg: #2b2118;
  --muted: #6f6156;
  --border: #e7dccd;
  --border-strong: #d8c8b4;
  --accent: #b44a22;
  --accent-soft: #fbe9df;
  --accent-2: #2f6f62;
  --accent-2-soft: #e3f1ed;
  --danger: #a3341f;
  --ring: #b44a22;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(43, 33, 24, .05), 0 8px 24px rgba(43, 33, 24, .06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --header-h: 58px;
  --sidebar-w: 288px;
  --toc-w: 220px;
  --content-w: 800px;
}
html[data-theme="dark"] {
  --bg: #17130f;
  --surface: #1e1915;
  --surface-2: #26201a;
  --fg: #f0e7dc;
  --muted: #b3a293;
  --border: #372e26;
  --border-strong: #4a3e33;
  --accent: #ff9b6b;
  --accent-soft: #3a241a;
  --accent-2: #7fd3bf;
  --accent-2-soft: #1d332e;
  --danger: #ff8f7a;
  --ring: #ff9b6b;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: var(--font); font-size: 16px; line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-2); text-underline-offset: 2px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; border-radius: 4px; }
.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;
}
.skip {
  position: fixed; left: 8px; top: -48px; z-index: 100; background: var(--accent);
  color: #fff; padding: 8px 12px; border-radius: var(--radius-sm); text-decoration: none;
}
.skip:focus, .skip:hover { top: 8px; color: #fff; }

/* 顶栏 */
.topbar {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  display: flex; align-items: center; gap: 10px; padding: 0 14px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(1.4) blur(8px);
}
.brand { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--fg); font-weight: 700; white-space: nowrap; }
.brand-mark {
  width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px;
  background: var(--accent); color: #fff; font-size: 15px; font-weight: 800;
}
.brand-text { font-size: 15px; letter-spacing: .2px; }
.brand:hover { color: var(--fg); }
.brand:hover .brand-mark { color: #fff; }
.icon-btn {
  width: 38px; height: 38px; display: inline-grid; place-items: center; flex: none;
  border: 1px solid var(--border); background: var(--surface); color: var(--fg);
  border-radius: 10px; font-size: 17px; cursor: pointer;
}
.icon-btn:hover { border-color: var(--border-strong); background: var(--surface-2); }
.lang-btn { font: 700 12px/1 var(--mono); letter-spacing: .02em; }
.menu-btn { display: none; }
.search { position: relative; flex: 1; max-width: 620px; margin: 0 auto; }
.search input {
  width: 100%; height: 40px; padding: 0 44px 0 14px; font: inherit; font-size: 14px;
  color: var(--fg); background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; outline: none;
}
.search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search-kbd {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  font: 12px var(--mono); color: var(--muted); border: 1px solid var(--border);
  border-radius: 5px; padding: 1px 6px; background: var(--surface-2); pointer-events: none;
}
.suggest {
  position: absolute; left: 0; right: 0; top: 46px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden; max-height: 60vh; overflow-y: auto;
}
.suggest a { display: block; padding: 9px 13px; text-decoration: none; color: var(--fg); border-top: 1px solid var(--border); }
.suggest a:first-child { border-top: 0; }
.suggest a:hover, .suggest a.active { background: var(--accent-soft); color: var(--fg); }
.suggest .s-folder { display: block; font-size: 12px; color: var(--muted); }

/* 布局 */
.layout { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w); gap: 0; max-width: 1440px; margin: 0 auto; }
.sidebar { border-right: 1px solid var(--border); min-height: calc(100vh - var(--header-h)); }
.sidebar-inner { position: sticky; top: var(--header-h); max-height: calc(100vh - var(--header-h)); overflow-y: auto; padding: 16px 14px 40px; }
.side-note {
  font-size: 12px; color: var(--muted); background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 9px 10px; margin-bottom: 14px; line-height: 1.9;
}
.side-note strong { display: block; color: var(--fg); font-size: 12px; margin-bottom: 2px; }
.nav-group h2 {
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
  margin: 16px 8px 6px; font-weight: 700;
}
.nav-group ul { list-style: none; margin: 0; padding: 0; }
.nav-group a {
  display: block; padding: 6px 9px; border-radius: 7px; color: var(--fg); text-decoration: none;
  font-size: 13.5px; line-height: 1.45; border-left: 2px solid transparent;
}
.nav-group a:hover { background: var(--surface-2); color: var(--accent); }
.nav-group a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; border-left-color: var(--accent); }

.main { min-width: 0; padding: 26px clamp(18px, 4vw, 48px) 80px; }
.crumbs { font-size: 12.5px; color: var(--muted); margin-bottom: 8px; min-height: 18px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.content { max-width: var(--content-w); }
.toc { border-left: 1px solid var(--border); }
.toc-inner { position: sticky; top: var(--header-h); max-height: calc(100vh - var(--header-h)); overflow-y: auto; padding: 26px 16px; }
.toc h2 { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc a { display: block; font-size: 12.5px; color: var(--muted); text-decoration: none; padding: 3px 0 3px 8px; border-left: 2px solid transparent; }
.toc a:hover, .toc a.active { color: var(--accent); border-left-color: var(--accent); }
.toc .lvl3 { padding-left: 20px; font-size: 12px; }

/* 正文排版 */
.md { font-size: 15.5px; }
.md h1 { font-size: clamp(24px, 3vw, 32px); line-height: 1.3; margin: 0 0 14px; letter-spacing: -.01em; }
.md h2 { font-size: clamp(19px, 2.2vw, 23px); margin: 36px 0 10px; padding-top: 6px; border-top: 1px solid var(--border); }
.md h3 { font-size: 17.5px; margin: 26px 0 8px; }
.md h4 { font-size: 15.5px; margin: 20px 0 6px; color: var(--accent-2); }
.md p { margin: 9px 0; }
.md ul, .md ol { margin: 8px 0; padding-left: 22px; }
.md li { margin: 3px 0; }
.md li > ul, .md li > ol { margin: 3px 0; }
.md blockquote {
  margin: 14px 0; padding: 10px 14px; border-left: 3px solid var(--border-strong);
  background: var(--surface-2); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--muted);
}
.md blockquote p { margin: 4px 0; }
.md blockquote strong { color: var(--fg); }
.md blockquote blockquote { background: transparent; }
.md code { font: 13px/1.6 var(--mono); background: var(--surface-2); border: 1px solid var(--border); padding: .1em .35em; border-radius: 5px; }
.md pre { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; overflow-x: auto; }
.md pre code { background: none; border: 0; padding: 0; font-size: 12.5px; }
.md hr { border: 0; border-top: 1px solid var(--border); margin: 28px 0; }
.md a { font-weight: 500; }
.md strong { font-weight: 700; }
.md table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
.table-wrap { overflow-x: auto; margin: 12px 0; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); }
.md th, .md td { border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); padding: 7px 10px; vertical-align: top; text-align: left; }
.md th:last-child, .md td:last-child { border-right: 0; }
.md tbody tr:last-child td { border-bottom: 0; }
.md thead th { background: var(--surface-2); font-weight: 700; white-space: nowrap; }
.md tbody tr:hover { background: color-mix(in srgb, var(--surface-2) 60%, transparent); }
.md input[type="checkbox"] { accent-color: var(--accent-2); margin-right: 4px; }
.translation-pending {
  margin: 14px 0 18px; padding: 12px 14px; border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent); border-radius: var(--radius-sm);
  background: var(--accent-soft); color: var(--muted);
}
.translation-pending strong { display: block; color: var(--fg); margin-bottom: 3px; }
.translation-pending p { margin: 3px 0; }
.source-language { border-top: 1px dashed var(--border); padding-top: 8px; }

/* 证据标签 */
.ev { display: inline-block; font: 11px/1.6 var(--mono); padding: 0 5px; border-radius: 4px; border: 1px solid var(--border-strong); margin-right: 3px; }
.ev1 { background: #e3f1ed; color: #1f5a4d; border-color: #b7d9cf; }
.ev2 { background: #e8eefb; color: #2b4a86; border-color: #c3d2f0; }
.ev3 { background: #f4efe2; color: #6b5726; border-color: #dfd2ae; }
.ev4 { background: #fbe4dc; color: #8a3520; border-color: #efc3b4; }
html[data-theme="dark"] .ev1 { background: #1d332e; color: #9adcc9; border-color: #2f5a50; }
html[data-theme="dark"] .ev2 { background: #1e2a3d; color: #a9c2ee; border-color: #33486b; }
html[data-theme="dark"] .ev3 { background: #332d1e; color: #ddc98f; border-color: #5a4e2f; }
html[data-theme="dark"] .ev4 { background: #3a241a; color: #f0a98f; border-color: #6b3a28; }

/* 上一页/下一页 */
.pager { display: flex; gap: 12px; justify-content: space-between; max-width: var(--content-w); margin-top: 44px; padding-top: 18px; border-top: 1px solid var(--border); }
.pager a { flex: 1; border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 14px; text-decoration: none; color: var(--fg); background: var(--surface); }
.pager a:hover { border-color: var(--accent); }
.pager .dir { display: block; font-size: 11px; color: var(--muted); }
.pager .next { text-align: right; }

/* 搜索页 */
body.searching .layout { display: none; }
.search-page { max-width: 860px; margin: 0 auto; padding: 30px 20px 80px; }
.search-head h1 { margin: 0 0 4px; font-size: 26px; }
.muted { color: var(--muted); }
.results { list-style: none; padding: 0; margin: 20px 0; }
.results li { border-bottom: 1px solid var(--border); padding: 14px 0; }
.results a { font-size: 17px; font-weight: 700; text-decoration: none; color: var(--fg); }
.results a:hover { color: var(--accent); }
.results .meta { font-size: 12px; color: var(--muted); margin-top: 2px; }
.results .snippet { font-size: 13.5px; color: var(--muted); margin-top: 4px; line-height: 1.65; }
.results mark { background: var(--accent-soft); color: var(--fg); padding: 0 2px; border-radius: 3px; }

/* 响应式 */
.scrim, .scrim[hidden] { display: none; }
@media (max-width: 1180px) {
  .layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 860px) {
  .menu-btn { display: inline-grid; }
  .brand-text { display: none; }
  .layout { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: fixed; top: var(--header-h); left: 0; bottom: 0; width: min(86vw, 320px);
    z-index: 60; background: var(--surface); transform: translateX(-102%);
    transition: transform .18s ease; box-shadow: var(--shadow);
  }
  .sidebar.open { transform: none; }
  .scrim:not([hidden]) {
    display: block; position: fixed; inset: var(--header-h) 0 0 0; z-index: 55;
    background: rgba(0,0,0,.35); border: 0;
  }
  .main { padding: 18px 16px 60px; }
  .md { font-size: 15px; }
  .md table { font-size: 12.5px; min-width: 560px; }
}
@media print {
  .topbar, .sidebar, .toc, .pager, .crumbs, .scrim, .translation-pending { display: none !important; }
  .layout { display: block; }
  .main { padding: 0; }
  body { background: #fff; color: #000; }
  .md a { color: #000; text-decoration: underline; }
  .table-wrap { overflow: visible; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .sidebar { transition: none; }
}

/* ---------- 2026-10-21 落地页 / 侧栏折叠 / 表格提示 ---------- */
.side-home {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px;
  color: var(--muted); text-decoration: none; margin: 0 4px 10px; min-height: 28px;
}
.side-home:hover { color: var(--accent); }
.nav-group { border-bottom: 1px solid var(--border); }
.nav-group > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center;
  padding: 9px 8px; margin: 0; border-radius: 6px;
}
.nav-group > summary::-webkit-details-marker { display: none; }
.nav-group > summary::after { content: "▸"; margin-left: auto; color: var(--muted); font-size: 11px; }
.nav-group[open] > summary::after { content: "▾"; }
.nav-group > summary:hover { background: var(--surface-2); }
.nav-group h2 { margin: 0; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.nav-count { font: 11px/1.4 var(--mono); color: var(--muted); background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; padding: 1px 6px; margin-left: 6px; }
.nav-group ul { padding-bottom: 8px; }

/* 表格可滚动提示 */
.table-wrap { position: relative; }
.table-wrap::after {
  content: ""; position: absolute; top: 0; right: 0; bottom: 0; width: 28px;
  background: linear-gradient(90deg, transparent, var(--surface));
  pointer-events: none; opacity: 0; transition: opacity .15s ease;
}
.table-wrap.is-scrollable::after { opacity: 1; }
.table-wrap.is-scrollable { scrollbar-width: thin; }
.table-hint { display: none; font-size: 12px; color: var(--muted); margin: -6px 0 10px; }
.table-wrap.is-scrollable + .table-hint { display: block; }

/* 落地页 */
.landing { max-width: 1200px; margin: 0 auto; padding: 34px clamp(18px, 4vw, 48px) 90px; }
.landing-hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 40px; align-items: center; }
.landing-kicker { margin: 0; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-2); font-weight: 700; }
.landing-copy h1 { font-size: clamp(30px, 4.2vw, 48px); line-height: 1.25; letter-spacing: -.015em; margin: 12px 0 14px; }
.landing-sub { margin: 0 0 22px; color: var(--muted); font-size: 16px; max-width: 32em; }
.landing-cta { display: flex; gap: 10px; flex-wrap: wrap; }
.l-btn {
  display: inline-flex; align-items: center; min-height: 46px; padding: 0 20px;
  border-radius: 12px; border: 1px solid var(--border-strong); color: var(--fg);
  background: var(--surface); text-decoration: none; font-weight: 600; font-size: 14.5px;
}
.l-btn:hover { border-color: var(--accent); color: var(--accent); }
.l-btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.l-btn-primary:hover { background: #93391a; border-color: #93391a; color: #fff; }
html[data-theme="dark"] .l-btn-primary:hover { background: #ffb28c; border-color: #ffb28c; color: #1b120c; }
.landing-stats { display: flex; gap: 28px; margin: 30px 0 0; padding-top: 16px; border-top: 1px solid var(--border); }
.landing-stats dt { font-size: 12px; color: var(--muted); }
.landing-stats dd { margin: 2px 0 0; font-size: 22px; font-weight: 800; font-variant-numeric: tabular-nums; }
.landing-art { margin: 0; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); }
.landing-art img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; }
.landing-entries { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 46px 0 8px; }
.entry {
  display: flex; flex-direction: column; gap: 4px; padding: 18px 18px 16px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  text-decoration: none; color: var(--fg); transition: border-color .15s ease, transform .15s ease;
}
.entry:hover { border-color: var(--accent-2); transform: translateY(-1px); }
.entry-idx { font: 11px/1 var(--mono); color: var(--accent-2); letter-spacing: .08em; }
.entry-title { font-weight: 700; font-size: 16px; margin-top: 4px; }
.entry-desc { font-size: 13px; color: var(--muted); line-height: 1.6; }
.landing-paths { margin-top: 42px; }
.paths-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.paths-head h2 { margin: 0; font-size: 19px; }
.paths-note { font-size: 12.5px; color: var(--muted); }
.paths { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.paths article { background: var(--surface-2); border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; }
.paths h3 { margin: 0 0 8px; font-size: 14.5px; }
.paths ol { margin: 0; padding-left: 20px; }
.paths li { margin: 6px 0; font-size: 13.5px; }
.paths a { text-decoration: none; }
.paths a:hover { text-decoration: underline; }

body.landing-mode .layout { display: none; }

@media (max-width: 1100px) {
  .landing-entries { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .landing { padding-top: 22px; }
  .landing-hero { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .landing-art { order: -1; }
  .landing-art img { aspect-ratio: 16 / 9; }
  .paths { grid-template-columns: minmax(0, 1fr); }
  .landing-stats { gap: 18px; }
}
@media (max-width: 480px) {
  .landing-entries { grid-template-columns: minmax(0, 1fr); }
  .landing-copy h1 { font-size: 28px; }
}

/* 落地页：证据图例 */
.landing-evidence {
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 32px; align-items: center; margin-top: 46px;
  padding: 26px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
}
.evidence-art { margin: 0; border-radius: 12px; overflow: hidden; }
.evidence-art img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; }
.evidence-copy h2 { margin: 0 0 8px; font-size: 20px; }
.evidence-copy > p { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
.evidence-legend { margin: 0 0 16px; display: grid; gap: 9px; }
.evidence-legend div { display: grid; grid-template-columns: 190px 1fr; gap: 10px; align-items: baseline; }
.evidence-legend dt { font-size: 13px; font-weight: 600; }
.evidence-legend dd { margin: 0; font-size: 13px; color: var(--muted); }
@media (max-width: 860px) {
  .landing-evidence { grid-template-columns: minmax(0, 1fr); gap: 16px; padding: 18px; }
  .evidence-legend div { grid-template-columns: 1fr; gap: 2px; }
}