:root {
  color-scheme: light;
  --bg: #f7f4ec;
  --surface: #fffefa;
  --ink: #172033;
  --muted: #5f6878;
  --line: #ded7c8;
  --accent: #246b57;
  --accent-strong: #173f34;
  --warn: #9a4f12;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.75;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: .08em;
  text-underline-offset: .18em;
}

.site-header,
.site-footer {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 254, 250, .88);
}

.site-footer {
  border-top: 1px solid var(--line);
  border-bottom: 0;
  margin-top: 48px;
}

.container {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header .container,
.site-footer .container {
  padding: 18px 0;
}

.brand {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.brand-title {
  font-size: 18px;
  font-weight: 750;
}

.brand-nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 14px;
}

.hero {
  padding: 42px 0 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.15;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.card,
.note,
.source-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.card {
  padding: 18px;
}

.card h2,
.card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.35;
}

.card p,
.card ul {
  margin: 0;
  color: var(--muted);
}

.content {
  padding: 26px 0 0;
}

.content h2 {
  margin: 34px 0 10px;
  font-size: 26px;
  line-height: 1.35;
}

.content h3 {
  margin: 24px 0 8px;
  font-size: 20px;
}

.content p,
.content li {
  font-size: 17px;
}

.content p {
  margin: 10px 0;
}

.content ul,
.content ol {
  padding-left: 1.25em;
}

.note {
  margin: 24px 0;
  padding: 16px 18px;
}

.note strong {
  color: var(--warn);
}

.source-box {
  margin-top: 32px;
  padding: 18px;
}

.source-box h2 {
  margin-top: 0;
}

.source-box li {
  font-size: 15px;
}

.article-meta {
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.map-cta {
  margin: 34px 0 10px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.map-cta h2 {
  margin-top: 0;
}

.map-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 16px 0;
}

.map-cta__button {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--accent-strong);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.map-cta__button:hover {
  background: var(--accent);
}

.map-cta__frame {
  width: 100%;
  height: min(68vh, 560px);
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef2ed;
}

@media (max-width: 640px) {
  .brand {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 30px;
  }

  .map-cta__frame {
    height: 420px;
  }
}