:root {
  --ink: #1c241c;
  --ink-soft: #3d4a40;
  --paper: #f4f0e6;
  --paper-2: #ebe4d4;
  --card: #fffdf8;
  --green: #1f6a45;
  --green-deep: #143c28;
  --line: #d9d0be;
  --gold: #a67c3d;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(166, 124, 61, 0.08), transparent 32%),
    var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  font-size: 16px;
}

a { color: inherit; }

img { max-width: 100%; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 240, 230, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--green-deep);
  color: #f4f0e6;
  display: grid;
  place-items: center;
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 16px;
}

.brand-name {
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 20px;
  letter-spacing: 0.08em;
}

.brand small {
  display: block;
  color: var(--ink-soft);
  font-size: 12px;
  letter-spacing: 0.04em;
  font-family: "PingFang SC", "Hiragino Sans GB", sans-serif;
}

.nav {
  display: flex;
  gap: 22px;
}

.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 15px;
}

.nav a[aria-current="page"] {
  color: var(--green-deep);
  font-weight: 600;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 40px;
  padding: 72px 0 36px;
}

h1, h2, h3 {
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 16px;
}

h1 { font-size: 56px; letter-spacing: 0.04em; }

h2 { font-size: 32px; }

.lede {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 40em;
}

.kicker {
  color: var(--gold);
  letter-spacing: 0.18em;
  font-size: 13px;
  margin-bottom: 12px;
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-block;
  text-decoration: none;
  background: var(--green-deep);
  color: #f7f3ea;
  padding: 12px 18px;
  border-radius: 999px;
}

.button.ghost {
  background: transparent;
  color: var(--green-deep);
  border: 1px solid var(--green);
}

.identity {
  background: var(--green-deep);
  color: #f4f0e6;
  padding: 28px;
  border-radius: 18px;
  align-self: end;
}

.identity span {
  display: block;
  color: #c9d7cc;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.identity strong {
  display: block;
  margin: 8px 0 18px;
  font-size: 22px;
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-weight: 600;
  line-height: 1.45;
}

.section { padding: 28px 0 64px; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}

.card h3 { font-size: 22px; }

.card p, .prose p { margin: 0 0 12px; color: var(--ink-soft); }

.facts {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}

.facts th, .facts td {
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.facts th {
  width: 180px;
  color: var(--ink-soft);
  font-weight: 500;
}

.facts tr:last-child th, .facts tr:last-child td { border-bottom: 0; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--ink-soft);
  font-size: 14px;
}

.site-footer a { color: var(--green-deep); }

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

@media (max-width: 800px) {
  h1 { font-size: 40px; }
  .hero, .grid { grid-template-columns: 1fr; }
  .header-inner { align-items: flex-start; flex-direction: column; padding: 12px 0; }
  .nav { gap: 14px; flex-wrap: wrap; }
}