:root {
  --pine: #1b3a2f;
  --ink: #1c1917;
  --gold: #a16207;
  --foil: #c6a15b;
  --paper: #f7f4ef;
  --card: #ffffff;
  --line: #d6d3d1;
  --muted: #57534e;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

a { color: inherit; }

img { max-width: 100%; display: block; }

.wrap {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(247, 244, 239, 0.94);
  border-bottom: 1px solid var(--line);
}

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

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

.brand img { width: 40px; height: 40px; }

.brand strong {
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.18em;
}

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

.nav a {
  text-decoration: none;
  color: var(--muted);
}

.nav a:hover { color: var(--pine); }

.hero {
  padding: 72px 0 48px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  letter-spacing: 0.28em;
  font-size: 13px;
}

.hero h1 {
  margin: 0;
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.15;
  color: var(--pine);
}

.hero .slogan {
  margin: 18px 0 0;
  font-size: 20px;
  letter-spacing: 0.2em;
}

.lead {
  max-width: 640px;
  margin: 22px 0 0;
  color: var(--muted);
}

.panel {
  padding: 28px 0 8px;
}

.panel h2 {
  margin: 0 0 8px;
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 28px;
  font-weight: 600;
  color: var(--pine);
}

.panel > .wrap > p { max-width: 720px; color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 28px 0 12px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 20px 18px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--pine);
}

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

.buy {
  margin-top: 12px;
  background: var(--pine);
  color: #fff;
}

.buy h2,
.buy p { color: #fff; }

.buy p { max-width: 640px; opacity: 0.92; }

.site-footer {
  padding: 36px 0 48px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

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

@media (max-width: 760px) {
  .nav { display: none; }
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
}