:root {
  --ink: #2a1a14;
  --red: #8b1e1e;
  --red-d: #6a1515;
  --gold: #c4a35a;
  --cream: #f7f1e8;
  --paper: #fffdf8;
  --line: #e4d6c2;
  --mute: #6d5c4c;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.75;
  font-size: 16px;
}
a { color: var(--red); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.topbar {
  background: var(--paper);
  border-bottom: 3px solid var(--red);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--red);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.brand:hover { text-decoration: none; }
.nav-row { display: flex; gap: 8px; }
.nav-row a {
  padding: 8px 16px;
  color: var(--ink);
  border-bottom: 2px solid transparent;
}
.nav-row a.is-on {
  color: var(--red);
  border-bottom-color: var(--gold);
  font-weight: 700;
}

.hero-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  padding: 48px 0 36px;
}
.kicker {
  color: var(--red);
  font-size: 13px;
  letter-spacing: 0.18em;
  margin-bottom: 10px;
}
h1 {
  font-size: 34px;
  line-height: 1.35;
  margin-bottom: 16px;
}
.lead { font-size: 17px; color: var(--mute); margin-bottom: 22px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid var(--red);
  background: var(--red);
  color: #fff;
  font-family: inherit;
  font-size: 16px;
}
.btn:hover { background: var(--red-d); text-decoration: none; }
.btn-ghost {
  background: transparent;
  color: var(--red);
}
.dl-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 22px 24px;
  box-shadow: 8px 8px 0 var(--gold);
}
.dl-card h2 { font-size: 20px; margin-bottom: 12px; }
.dl-card ol { padding-left: 18px; color: var(--mute); }
.dl-card li { margin: 6px 0; }

.scene-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.scene-strip a {
  padding: 16px 12px;
  text-align: center;
  color: var(--ink);
  border-right: 1px solid var(--line);
}
.scene-strip a:last-child { border-right: 0; }
.scene-strip strong { display: block; color: var(--red); }

.scene-block { padding: 48px 0; }
.scene-block.alt { background: var(--paper); }
.scene-block h2 {
  font-size: 26px;
  margin-bottom: 14px;
  padding-left: 14px;
  border-left: 5px solid var(--red);
}
.scene-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 18px;
}
.scene-pair p { color: var(--ink); }
.note {
  margin-top: 14px;
  padding: 12px 14px;
  background: #f3e6c8;
  color: var(--ink);
}

.data-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--red);
  color: #fff;
}
.data-band article { padding: 36px 40px; }
.data-band h2 { color: #fff; border: 0; padding: 0; margin-bottom: 12px; font-size: 22px; }
.data-band p { color: #f3ddd0; }
.data-band .gold { background: #6a1515; }

.who { padding: 48px 0; }
.who h2 { font-size: 26px; margin-bottom: 16px; }
.who ul { columns: 2; padding-left: 20px; }
.who li { margin: 8px 0; }

.faq { padding: 20px 0 56px; }
.faq h2 { font-size: 26px; margin-bottom: 16px; }
.faq-item {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 16px 18px;
  margin-bottom: 10px;
}
.faq-item h3 { font-size: 17px; margin-bottom: 8px; color: var(--red); }

.site-foot {
  background: #2a1a14;
  color: #e8d8c8;
  padding: 28px 0 22px;
  font-size: 14px;
}
.site-foot .nav-row a { color: #e8d8c8; }
.site-foot .nav-row a.is-on { color: var(--gold); border-color: var(--gold); }
.safe { margin: 12px 0; color: #f3e6c8; }
.copy { color: #b9a48f; }

@media (max-width: 860px) {
  .hero-split, .scene-pair, .data-band, .who ul, .scene-strip {
    grid-template-columns: 1fr;
    columns: 1;
  }
  .scene-strip a { border-right: 0; border-bottom: 1px solid var(--line); }
  h1 { font-size: 26px; }
  .topbar-inner { flex-direction: column; padding: 10px 0; }
}