:root {
  color-scheme: light;
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface-muted: #eeeee7;
  --ink: #242625;
  --muted: #626862;
  --line: #d8d7cf;
  --teal: #0f766e;
  --teal-dark: #115e59;
  --burgundy: #8f2337;
  --amber: #b7791f;
  --steel: #3b556b;
  --shadow: 0 18px 44px rgba(38, 42, 39, 0.1);
  --radius: 8px;
  font-family:
    Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--ink);
}

body {
  margin: 0;
  min-width: 320px;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--teal-dark);
}

button,
input,
select {
  font: inherit;
}

.site-header {
  align-items: center;
  background: rgba(247, 246, 242, 0.94);
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  left: 0;
  padding: 14px clamp(18px, 4vw, 48px);
  position: sticky;
  right: 0;
  top: 0;
  z-index: 10;
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 12px;
}

.brand-mark {
  align-items: center;
  background: var(--ink);
  color: white;
  display: inline-flex;
  height: 38px;
  justify-content: center;
  width: 38px;
  border-radius: 6px;
  font-weight: 700;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.main-nav a,
.language-link,
.clear-button,
.card-actions a,
.card-actions span,
.hero-link,
.tool-nav a {
  border: 1px solid var(--line);
  border-radius: 6px;
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 8px 12px;
}

.main-nav a.active,
.language-link,
.hero-link.primary {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}

.language-link {
  justify-self: end;
}

.hero {
  background:
    linear-gradient(110deg, rgba(15, 118, 110, 0.1), transparent 46%),
    linear-gradient(250deg, rgba(143, 35, 55, 0.12), transparent 42%), var(--bg);
  border-bottom: 1px solid var(--line);
  padding: clamp(34px, 7vw, 76px) clamp(18px, 4vw, 48px) 34px;
}

.hero-inner {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  margin: 0 auto;
  max-width: 1180px;
}

.eyebrow {
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 10px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.02;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.15;
}

h3 {
  font-size: 20px;
  line-height: 1.3;
}

.hero p,
.section-lead {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-card {
  align-self: stretch;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.stat-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stat {
  border-left: 3px solid var(--teal);
  padding: 8px 12px;
}

.stat strong {
  display: block;
  font-size: 28px;
}

.stat span {
  color: var(--muted);
  font-size: 13px;
}

.section {
  margin: 0 auto;
  max-width: 1180px;
  padding: 42px clamp(18px, 4vw, 48px);
}

.section-header {
  align-items: end;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.search-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: -24px auto 0;
  max-width: 1180px;
  padding: 18px;
}

.search-panel.compact {
  margin-top: 0;
}

.search-controls {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(240px, 1.7fr) repeat(auto-fit, minmax(148px, 1fr));
  align-items: end;
}

.search-controls .search-box {
  grid-column: 1 / -1;
}

label span {
  color: var(--muted);
  display: block;
  font-size: 12px;
  margin-bottom: 6px;
}

input,
select {
  background: #fbfbf8;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  min-height: 40px;
  padding: 9px 10px;
  width: 100%;
}

input:focus,
select:focus {
  border-color: var(--teal);
  outline: 3px solid rgba(15, 118, 110, 0.14);
}

.clear-button {
  align-self: end;
  background: var(--surface-muted);
  color: var(--ink);
  cursor: pointer;
  justify-content: center;
}

.results-bar {
  align-items: baseline;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
}

.results-bar strong {
  color: var(--burgundy);
  font-size: 24px;
}

.resource-grid,
.taxonomy-grid,
.tool-grid,
.coverage-board {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.resource-grid {
  margin-top: 16px;
}

.resource-card,
.taxonomy-card,
.tool-card,
.detail-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.topic-metrics {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 14px;
}

.resource-card[hidden] {
  display: none;
}

.card-topline,
.tag-row,
.card-actions,
.detail-links,
.tool-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.category-pill,
.kind-pill,
.status-pill,
.tag-row a,
.keyword {
  align-items: center;
  border-radius: 999px;
  display: inline-flex;
  font-size: 12px;
  min-height: 28px;
  padding: 5px 9px;
}

.category-pill {
  background: rgba(15, 118, 110, 0.1);
  color: var(--teal-dark);
}

.kind-pill {
  background: rgba(59, 85, 107, 0.12);
  color: var(--steel);
}

.status-pill {
  background: var(--surface-muted);
  color: var(--muted);
}

.status-pill.official {
  background: rgba(15, 118, 110, 0.12);
  color: var(--teal-dark);
}

.status-pill.summary-only {
  background: rgba(183, 121, 31, 0.14);
  color: #80530f;
}

.resource-card h3 {
  margin: 14px 0 10px;
}

.resource-card p {
  color: var(--muted);
  line-height: 1.65;
}

.meta-line {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}

.meta-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 14px 0;
}

.meta-grid dt,
.detail-meta dt {
  color: var(--muted);
  font-size: 12px;
}

.meta-grid dd,
.detail-meta dd {
  margin: 3px 0 0;
}

.tag-row a {
  background: #f6eee9;
  color: var(--burgundy);
}

.card-actions {
  border-top: 1px solid var(--line);
  margin-top: 16px;
  padding-top: 14px;
}

.card-actions a,
.card-actions span {
  font-size: 13px;
  min-height: 34px;
}

.taxonomy-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.taxonomy-card p,
.tool-card p {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.taxonomy-card a {
  color: var(--teal-dark);
  font-weight: 700;
}

.coverage-board {
  margin-bottom: 20px;
}

.coverage-item {
  background: var(--ink);
  border-radius: var(--radius);
  color: white;
  display: grid;
  gap: 8px;
  min-height: 128px;
  padding: 18px;
}

.coverage-item:hover {
  color: white;
}

.coverage-item strong {
  font-size: 18px;
  line-height: 1.3;
}

.coverage-item span {
  font-size: 28px;
  font-weight: 700;
}

.coverage-item small {
  color: rgba(255, 255, 255, 0.7);
}

.page-band {
  background: var(--surface-muted);
  border-bottom: 1px solid var(--line);
  padding: 38px clamp(18px, 4vw, 48px);
}

.page-band-inner,
.detail-layout {
  margin: 0 auto;
  max-width: 1180px;
}

.detail-layout {
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.65fr);
  padding: 34px clamp(18px, 4vw, 48px);
}

.detail-panel {
  box-shadow: var(--shadow);
}

.detail-panel p {
  color: var(--muted);
  line-height: 1.75;
}

.detail-meta {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 20px 0;
}

.detail-links a,
.tool-nav a {
  background: var(--surface);
}

.keyword-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.keyword {
  background: rgba(59, 85, 107, 0.12);
  color: var(--steel);
}

.timeline {
  border-left: 2px solid var(--line);
  display: grid;
  gap: 14px;
  margin-top: 20px;
  padding-left: 18px;
}

.source-list {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.source-row {
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(220px, 1fr) minmax(160px, 0.35fr) minmax(260px, 1fr);
  padding: 18px;
}

.source-row h3 {
  margin-bottom: 6px;
}

.source-row p {
  color: var(--muted);
  margin-bottom: 0;
}

.source-stats,
.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.source-stats span,
.source-links a {
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  padding: 6px 9px;
}

.source-links a {
  color: var(--teal-dark);
}

.timeline-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  position: relative;
}

.timeline-item::before {
  background: var(--burgundy);
  border: 3px solid var(--bg);
  border-radius: 999px;
  content: "";
  height: 12px;
  left: -26px;
  position: absolute;
  top: 18px;
  width: 12px;
}

.empty-state {
  color: var(--muted);
  padding: 18px 0 8px;
}

.site-footer {
  background: var(--ink);
  color: white;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(220px, 1fr) minmax(220px, 1fr);
  margin-top: 44px;
  padding: 34px clamp(18px, 4vw, 48px);
}

.site-footer p {
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.65;
  margin-bottom: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.footer-links a {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  color: white;
  padding: 7px 10px;
}

@media (max-width: 1040px) {
  .site-header,
  .hero-inner,
  .detail-layout,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .language-link,
  .footer-links {
    justify-self: start;
    justify-content: flex-start;
  }

  .search-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .search-box {
    grid-column: 1 / -1;
  }

  .resource-grid,
  .taxonomy-grid,
  .tool-grid,
  .coverage-board,
  .topic-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .site-header {
    position: static;
  }

  .main-nav {
    justify-content: flex-start;
  }

  .search-controls,
  .source-row,
  .resource-grid,
  .taxonomy-grid,
  .tool-grid,
  .coverage-board,
  .topic-metrics,
  .meta-grid,
  .detail-meta,
  .stat-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 34px;
  }
}