@import url("./site-nav.css");

:root {
  --ink: #15191a;
  --muted: #60706e;
  --paper: #f5f3ee;
  --panel: #ffffff;
  --panel-soft: #fbfaf7;
  --line: #d9ded8;
  --green: #1f7a5a;
  --blue: #28677c;
  --amber: #a97814;
  --red: #aa4d3f;
  --violet: #5f587c;
  --shadow: 0 16px 40px rgba(20, 25, 26, 0.09);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.58;
}

a {
  color: inherit;
}

.container {
  width: min(var(--max), calc(100vw - 40px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(20, 25, 26, 0.1);
  background: rgba(245, 243, 238, 0.94);
  backdrop-filter: blur(16px);
}

.nav-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 820;
  text-decoration: none;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 12px;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
  font-weight: 680;
}

.nav-links a {
  border-radius: 999px;
  padding: 8px 10px;
  text-decoration: none;
}

.nav-links a:hover {
  background: rgba(20, 25, 26, 0.07);
  color: var(--ink);
}

.hero {
  padding: 46px 0 24px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.46fr);
  gap: 28px;
  align-items: stretch;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 13px;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 860px;
  margin: 0;
  font-size: 62px;
  line-height: 0.98;
  letter-spacing: 0;
}

.subtitle {
  max-width: 820px;
  margin: 18px 0 0;
  color: #3d4948;
  font-size: 19px;
}

.source-date {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-actions,
.card-grid,
.deep-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-actions {
  margin-top: 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--ink);
  font-size: 14px;
  font-weight: 760;
  padding: 9px 13px;
  text-decoration: none;
}

.button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.visual-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 16px;
  display: grid;
  gap: 12px;
  min-width: 0;
}

.visual-panel h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
}

.visual-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.evidence-card,
.metric,
.info-card,
.value-card,
.takeaway,
.deep-link {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
  min-width: 0;
}

.evidence-card {
  padding: 12px;
}

.evidence-card b,
.metric b {
  display: block;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.15;
}

.evidence-card span,
.metric span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 22px 0 0;
}

.metric {
  padding: 12px;
}

.section {
  padding: 24px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 14px;
}

h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.12;
}

.section-note {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.info-card {
  padding: 14px;
}

.info-card b {
  display: block;
  color: var(--blue);
  font-size: 13px;
  margin-bottom: 8px;
}

.info-card strong {
  display: block;
  font-size: 17px;
  line-height: 1.22;
}

.info-card span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
}

.timeline-step {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 12px;
  min-width: 0;
}

.timeline-step b {
  display: block;
  color: var(--amber);
  font-size: 12px;
  margin-bottom: 8px;
}

.timeline-step span {
  display: block;
  color: #3f4a49;
  font-size: 13px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

table {
  width: 100%;
  min-width: 940px;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 13px 14px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #fbfaf7;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

tr:last-child td {
  border-bottom: 0;
}

td a,
.deep-link a {
  color: var(--green);
  font-weight: 760;
  text-underline-offset: 3px;
}

details {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 12px 14px;
}

summary {
  cursor: pointer;
  font-weight: 820;
}

details p,
details ul {
  color: var(--muted);
  margin-bottom: 0;
}

.value-grid,
.takeaway-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.value-card,
.takeaway {
  padding: 14px;
}

.value-card b,
.takeaway b {
  display: block;
  color: var(--red);
  font-size: 13px;
  margin-bottom: 8px;
}

.value-card span,
.takeaway span {
  display: block;
  color: #3f4a49;
  font-size: 14px;
}

.deep-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.deep-link {
  padding: 14px;
}

.deep-link b {
  display: block;
  font-size: 15px;
  margin-bottom: 8px;
}

.deep-link span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

footer {
  padding: 28px 0 34px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1080px) {
  .hero-grid,
  .info-grid,
  .timeline,
  .value-grid,
  .takeaway-grid,
  .deep-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  .container {
    width: min(100vw - 24px, var(--max));
  }

  .nav-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

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

  h1 {
    font-size: 42px;
  }

  .hero-grid,
  .info-grid,
  .timeline,
  .metric-strip,
  .value-grid,
  .takeaway-grid,
  .deep-grid,
  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .section-head {
    align-items: start;
    flex-direction: column;
  }
}