:root {
  --bg: #fbfbfa;
  --bg-alt: #f3f2ef;
  --surface: rgba(255,255,255,.88);
  --surface-strong: #ffffff;
  --border: #e7e5e0;
  --border-strong: #ddd9d0;
  --text: #2f2d29;
  --text-muted: #6f6b64;
  --accent: #2d74da;
  --accent-hover: #1a5bb8;
  --header-bg: #faf9f6;
  --header-border: #ddd9d0;
  --shadow-sm: 0 8px 24px rgba(15, 23, 42, .05);
  --shadow-md: 0 16px 40px rgba(15, 23, 42, .10);
  --radius: 16px;
  --header-h: 58px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --transition: .22s ease;
}

[data-theme="dark"] {
  --bg: #151515;
  --bg-alt: #1d1d1d;
  --surface: rgba(39,39,39,.88);
  --surface-strong: #2a2a2a;
  --border: #363636;
  --border-strong: #434343;
  --text: #eceae5;
  --text-muted: #a4a09a;
  --accent: #69a3ff;
  --accent-hover: #8db9ff;
  --header-bg: #252526;
  --header-border: #3c3c3c;
  --shadow-sm: 0 8px 24px rgba(0,0,0,.22);
  --shadow-md: 0 18px 44px rgba(0,0,0,.34);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 18px); }
body {
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(45,116,218,.06), transparent 28%),
    radial-gradient(circle at top right, rgba(120,119,198,.05), transparent 24%),
    var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background var(--transition), color var(--transition);
}
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); text-decoration: underline; }
.container { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  backdrop-filter: blur(8px);
}
.header-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 8px 24px;
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
}
.site-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  line-height: 1.2;
  flex-shrink: 1;
  min-width: 0;
}
.site-title:hover {
  color: var(--accent);
  text-decoration: none;
}
.header-spacer {
  flex: 1;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
  margin-left: auto;
}
.github-link {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 2px;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
}
.github-link:hover {
  color: var(--accent);
  text-decoration: none;
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 30px;
  padding: 0 8px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  line-height: 1;
  text-align: center;
  color: var(--text);
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.icon-sun { display: none; }
.icon-moon { display: inline; }
[data-theme="dark"] .icon-sun { display: inline; }
[data-theme="dark"] .icon-moon { display: none; }

.hero { padding: 44px 0 40px; border-bottom: 1px solid var(--border); }
.hero-grid { display: grid; grid-template-columns: 1.4fr .9fr; gap: 36px; align-items: start; }
.hero-kicker { font-size: .9rem; color: var(--text-muted); margin-bottom: 10px; }
.hero-title { font-size: 2.8rem; line-height: 1.1; font-weight: 850; margin-bottom: 14px; color: var(--text); letter-spacing: -.03em; }
.hero-subtitle { font-size: 1.02rem; color: var(--accent); font-weight: 700; margin-bottom: 18px; }
.hero-desc { font-size: .98rem; color: var(--text); margin-bottom: 22px; max-width: 62ch; }
.hero-links { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; font-size: .92rem; }
.hero-links span { color: var(--text-muted); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 16px;
  border-radius: 12px;
  font-size: .92rem;
  font-weight: 700;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; text-decoration: none; }
.btn-secondary { background: var(--surface); color: var(--text); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.hero-panel, .simple-card, .card, .toc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}
.hero-panel { padding: 20px 20px 18px; }
.hero-panel h3 { font-size: 1rem; margin-bottom: 12px; }
.hero-panel ul { list-style: none; display: grid; gap: 10px; }
.hero-panel li {
  font-size: .92rem;
  color: var(--text-muted);
  border-left: 2px solid var(--border-strong);
  padding-left: 10px;
}
.preview-home-layout,
.preview-split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.preview-split-grid {
  margin-top: 18px;
}
.preview-panel {
  min-height: 100%;
}
.top-gap {
  margin-top: 18px;
}
.data-grid {
  align-items: stretch;
}
.preview-list {
  list-style: none;
  display: grid;
  gap: 10px;
}
.preview-list li {
  font-size: .92rem;
  color: var(--text);
  border-left: 2px solid var(--border-strong);
  padding-left: 10px;
}
.preview-list small,
.footer-note,
.kpi-card .kpi-label,
.data-meta,
.data-submeta {
  color: var(--text-muted);
}
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.data-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  font-size: .86rem;
  color: var(--text);
}
.kpi-card {
  display: grid;
  gap: 8px;
}
.kpi-card .kpi-value {
  font-size: 2rem;
  line-height: 1;
  font-weight: 820;
  letter-spacing: -.03em;
}
.kpi-card .kpi-label {
  font-size: .88rem;
}
.kpi-card .kpi-note {
  font-size: .93rem;
}
.data-card {
  display: grid;
  gap: 12px;
}
.data-card h4 {
  font-size: .95rem;
  margin-bottom: 4px;
}
.data-card ul {
  padding-left: 18px;
}
.data-card li + li {
  margin-top: 6px;
}
.data-card code,
.page-hero code {
  padding: 2px 6px;
  border-radius: 8px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  font-size: .9em;
}
.data-loading {
  opacity: .78;
}
.skeleton-card {
  color: var(--text-muted);
}
.footer-stack {
  display: grid;
  gap: 6px;
  justify-items: center;
}
.section { padding: 44px 0; }
.section-alt {
  background: linear-gradient(180deg, rgba(255,255,255,.25), rgba(255,255,255,.1)), var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
[data-theme="dark"] .section-alt {
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0)), var(--bg-alt);
}
.section-title { font-size: 1.72rem; font-weight: 820; margin-bottom: 10px; letter-spacing: -.02em; }
.section-subtitle { color: var(--text-muted); font-size: .97rem; margin-bottom: 28px; max-width: 72ch; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.card {
  padding: 20px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
  background: linear-gradient(180deg, rgba(255,255,255,.76), rgba(255,255,255,.92));
}
[data-theme="dark"] .card {
  background: linear-gradient(180deg, rgba(56,56,56,.75), rgba(39,39,39,.94));
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(45,116,218,.28);
}
.card h3, .simple-card h3 { font-size: 1.04rem; margin-bottom: 8px; letter-spacing: -.01em; }
.card-meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
}
.card p, .simple-card p, .simple-card li { font-size: .93rem; color: var(--text); }
.route-list, .structure-list, .boundary-list { display: grid; gap: 14px; }
.simple-card {
  padding: 18px 20px;
  background: linear-gradient(180deg, rgba(255,255,255,.8), rgba(255,255,255,.94));
}
[data-theme="dark"] .simple-card {
  background: linear-gradient(180deg, rgba(58,58,58,.7), rgba(39,39,39,.94));
}
.simple-card ul { margin-top: 8px; padding-left: 18px; }
.simple-card li + li { margin-top: 6px; }
.page-hero { padding: 70px 0 18px; }
.page-hero h1 {
  font-size: 2.3rem;
  margin-bottom: 12px;
  letter-spacing: -.03em;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
}
.page-hero p { color: var(--text-muted); max-width: 76ch; font-size: .98rem; }
.page-subnav-wrap {
  padding: 0 0 24px;
}
.page-subnav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.page-subnav::-webkit-scrollbar {
  display: none;
}
.page-subnav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: .86rem;
  font-weight: 650;
}
.page-subnav a:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}
.toc-card { padding: 18px 20px; }
.toc-card ul { padding-left: 18px; }
.toc-card li + li { margin-top: 6px; }
.btn-inline {
  padding: 7px 12px;
  font-size: .84rem;
}
.detail-hero {
  padding-bottom: 14px;
}
.detail-hero-stack {
  display: grid;
  gap: 18px;
}
.detail-hero-top {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .8fr);
  gap: 18px;
  align-items: start;
}
.detail-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .88rem;
  color: var(--text-muted);
}
.detail-summary {
  color: var(--text-muted);
  max-width: 76ch;
  font-size: .98rem;
}
.detail-meta-panel {
  min-height: 100%;
}
.detail-meta-list {
  display: grid;
  gap: 10px;
  font-size: .92rem;
}
.detail-meta-list code,
.empty-state code {
  padding: 2px 6px;
  border-radius: 8px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  font-size: .92em;
}
.empty-state {
  display: grid;
  gap: 12px;
}
.empty-state[hidden] {
  display: none;
}
.detail-content-layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}
.detail-content-main {
  min-width: 0;
}
.detail-toc-panel {
  position: sticky;
  top: 92px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.detail-toc-panel[hidden] {
  display: none;
}
.detail-toc-list ol {
  margin: 0;
  padding-left: 1.1em;
}
.detail-toc-list li + li {
  margin-top: .5em;
}
.detail-toc-list .toc-level-3 {
  margin-left: .8em;
}
.detail-toc-list .toc-level-4 {
  margin-left: 1.6em;
}
.detail-toc-list a {
  color: var(--text);
  border-radius: 8px;
  padding: 2px 6px;
  margin-left: -6px;
  transition: color var(--transition), background var(--transition);
}
.detail-toc-list a.active {
  color: var(--accent);
  background: rgba(45,116,218,.10);
  font-weight: 700;
}
.detail-markdown-body {
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  font-size: .98rem;
  line-height: 1.8;
  word-break: break-word;
  scroll-margin-top: 96px;
}
.detail-markdown-body > :first-child {
  margin-top: 0;
}
.detail-markdown-body > :last-child {
  margin-bottom: 0;
}
.detail-markdown-body h1,
.detail-markdown-body h2,
.detail-markdown-body h3,
.detail-markdown-body h4,
.detail-markdown-body h5,
.detail-markdown-body h6 {
  margin: 1.4em 0 .6em;
  line-height: 1.35;
  scroll-margin-top: 96px;
}
.detail-heading {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
}
.heading-anchor-link {
  opacity: 0;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: .82rem;
  cursor: pointer;
  padding: .18rem .45rem;
  border-radius: 999px;
  transition: opacity var(--transition), color var(--transition), background var(--transition);
}
.detail-markdown-body h2:hover .heading-anchor-link,
.detail-markdown-body h3:hover .heading-anchor-link,
.detail-markdown-body h4:hover .heading-anchor-link,
.heading-anchor-link:focus-visible,
.heading-anchor-link.copied {
  opacity: 1;
}
.heading-anchor-link:hover,
.heading-anchor-link:focus-visible,
.heading-anchor-link.copied {
  color: var(--accent);
  background: rgba(45,116,218,.10);
  text-decoration: none;
}
.detail-hash-target {
  border-radius: 10px;
  background: rgba(45,116,218,.10);
  box-shadow: 0 0 0 1px rgba(45,116,218,.18);
  transition: background var(--transition), box-shadow var(--transition);
}
.detail-markdown-body p,
.detail-markdown-body ul,
.detail-markdown-body ol,
.detail-markdown-body blockquote,
.detail-markdown-body pre {
  margin: 0 0 1em;
}
.detail-markdown-body ul,
.detail-markdown-body ol {
  padding-left: 1.4em;
}
.detail-markdown-body li + li {
  margin-top: .35em;
}
.detail-markdown-body a {
  color: var(--accent);
}
.detail-markdown-body code {
  padding: .12em .38em;
  border-radius: 6px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  font-size: .92em;
}
.detail-markdown-body pre {
  overflow-x: auto;
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
}
.detail-markdown-body pre code {
  padding: 0;
  border: 0;
  background: transparent;
}
.detail-markdown-body blockquote {
  margin-left: 0;
  padding: .2em 0 .2em 1em;
  border-left: 4px solid var(--accent);
  color: var(--text-muted);
}
.detail-markdown-body .math-inline {
  display: inline-flex;
  align-items: center;
  padding: .05em .35em;
  border-radius: 6px;
  background: rgba(45,116,218,.08);
  border: 1px solid rgba(45,116,218,.18);
  min-height: 1.7em;
}
.detail-markdown-body .math-inline .katex,
.detail-markdown-body .math-inline .katex * {
  color: var(--accent);
}
.detail-markdown-body .math-block {
  margin: 1em 0;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px dashed var(--border);
  background: rgba(45,116,218,.04);
  overflow-x: auto;
}
.detail-markdown-body .math-block .katex-display {
  margin: 0;
  overflow-x: auto;
  overflow-y: hidden;
}
.detail-markdown-body .math-block .katex,
.detail-markdown-body .math-block .katex * {
  color: var(--text);
}
[data-theme="dark"] .detail-markdown-body .math-inline {
  background: rgba(105,163,255,.12);
  border-color: rgba(105,163,255,.28);
}
[data-theme="dark"] .detail-markdown-body .math-block {
  background: rgba(105,163,255,.06);
}
[data-theme="dark"] .detail-toc-list a.active,
[data-theme="dark"] .heading-anchor-link:hover,
[data-theme="dark"] .heading-anchor-link:focus-visible,
[data-theme="dark"] .heading-anchor-link.copied {
  background: rgba(105,163,255,.14);
}
.tech-map-group {
  margin: 0 0 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.tech-map-group-summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 18px;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.tech-map-group-summary::-webkit-details-marker {
  display: none;
}
.tech-map-group-grid {
  padding: 18px;
}
.data-chip-button {
  cursor: pointer;
  background: var(--bg-alt);
}
.data-chip-active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(45,116,218,.08);
}
#detailContentSection[hidden] {
  display: none;
}
.footer {
  border-top: 1px solid var(--border);
  padding: 30px 0 50px;
  color: var(--text-muted);
  font-size: .88rem;
}
.footer .container {
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 980px) {
  .detail-content-layout {
    grid-template-columns: 1fr;
  }
  .detail-toc-panel {
    position: static;
  }
}

@media (max-width: 860px) {
  .header-inner {
    gap: 10px;
    padding: 10px 16px;
    align-items: center;
  }
  .site-title {
    font-size: 1.08rem;
    line-height: 1.25;
    font-weight: 700;
    flex: 1 1 auto;
    white-space: normal;
    max-width: calc(100% - 150px);
  }
  .header-spacer {
    flex: 1 1 auto;
    min-width: 0;
  }
  .header-right {
    gap: 0.7rem;
    margin-left: auto;
    justify-content: flex-end;
  }
  .github-link {
    font-size: 0.82rem;
    white-space: nowrap;
  }
  .theme-toggle {
    min-width: 36px;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    flex-shrink: 0;
    font-size: 0.85rem;
    line-height: 1;
    height: auto;
  }
  .hero {
    padding: 28px 0 28px;
  }
  .page-hero {
    padding: 34px 0 12px;
  }
  .page-subnav-wrap {
    padding: 0 0 18px;
  }
  .page-subnav {
    gap: 8px;
  }
  .page-subnav a {
    padding: 7px 12px;
    font-size: 0.82rem;
  }
  .section {
    padding: 30px 0;
  }
  .hero-grid, .card-grid, .preview-home-layout, .preview-split-grid, .detail-hero-top { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.15rem; }
  .page-hero h1 { font-size: 2rem; }
  .container { padding: 0 18px; }
}

/* ── Wiki 搜索框 ─────────────────────────────────────── */
.search-bar-wrap {
  margin-bottom: 24px;
}
.search-bar-wrap input[type="search"] {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color .2s;
  box-sizing: border-box;
}
.search-bar-wrap input[type="search"]:focus {
  border-color: var(--accent);
}
.search-bar-wrap input[type="search"]::placeholder {
  color: var(--text-muted);
}
.search-bar-wrap {
  display: flex;
  gap: 8px;
  align-items: center;
}
.search-bar-wrap input[type="search"] {
  flex: 1;
}
#wikiTypeFilter {
  padding: 10px 12px;
  font-size: .9rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  outline: none;
  cursor: pointer;
  transition: border-color .2s;
  white-space: nowrap;
}
#wikiTypeFilter:focus {
  border-color: var(--accent);
}
.ingest-badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  white-space: nowrap;
}
.ingest-badge.ingest-missing {
  background: transparent;
  color: var(--text-muted);
  font-weight: 400;
}