:root {
  --paper: #f6f1ea;
  --ink: #1c1410;
  --muted: #5c4f46;
  --line: #d8cfc4;
  --red: #b42318;
  --red-dark: #8a1a12;
  --card: #fffdf8;
  --chip: #f3e6dc;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
}

.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }

.topbar {
  background: #fffdf8;
  border-bottom: 3px solid var(--red);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 22px;
  font-family: "Source Han Serif SC", "Songti SC", "SimSun", serif;
}
.brand svg { display: block; }

.nav { display: flex; gap: 8px; }
.nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid transparent;
}
.nav a.current {
  background: var(--red);
  color: #fff;
}
.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  padding: 8px 10px;
  cursor: pointer;
}

.hero {
  padding: 48px 0 28px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: stretch;
}
.kicker {
  display: inline-block;
  background: var(--chip);
  color: var(--red-dark);
  padding: 4px 10px;
  font-size: 13px;
  margin-bottom: 12px;
}
h1 {
  font-family: "Source Han Serif SC", "Songti SC", "SimSun", serif;
  font-size: 34px;
  line-height: 1.35;
  margin: 0 0 16px;
}
.hero p { margin: 0 0 14px; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  padding: 12px 18px;
  font-weight: 700;
}
.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-dark); }
.btn-ghost { background: transparent; color: var(--red); border: 1px solid var(--red); }
.dl-card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 22px;
  box-shadow: 6px 6px 0 #eadfd4;
}
.dl-card h2 { font-size: 20px; margin: 0 0 10px; }
.mini-list { margin: 0; padding-left: 18px; color: var(--muted); }
.mini-list li { margin: 6px 0; }

.section { padding: 28px 0; }
.section h2 {
  font-family: "Source Han Serif SC", "Songti SC", "SimSun", serif;
  font-size: 26px;
  margin: 0 0 14px;
}
.lead { color: var(--muted); margin-top: 0; }

.scene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.scene {
  background: var(--card);
  border-left: 6px solid var(--red);
  padding: 18px 18px 8px;
}
.scene h3 { margin: 0 0 8px; font-size: 18px; }

table.data {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
}
table.data th, table.data td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
table.data th { background: #f3e6dc; }

.steps { display: grid; gap: 12px; }
.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 12px;
  background: var(--card);
  padding: 14px;
  border: 1px solid var(--line);
}
.num {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  background: var(--red);
  color: #fff;
  font-weight: 700;
}

.faq { display: grid; gap: 12px; }
.faq article {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 14px 16px;
}
.faq h3 { margin: 0 0 8px; font-size: 17px; }
.faq p { margin: 0; color: var(--muted); }

.site-footer {
  margin-top: 36px;
  background: #1c1410;
  color: #efe7de;
  padding: 28px 0 22px;
}
.site-footer a { color: #ffd4cc; }
.safe { margin: 0 0 10px; }
.legal { margin: 0; color: #c9bdb2; font-size: 13px; }

@media (max-width: 860px) {
  .menu-btn { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    right: 16px;
    top: 72px;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--line);
    z-index: 5;
  }
  .nav.open { display: flex; }
  .hero-grid, .scene-grid { grid-template-columns: 1fr; }
  h1 { font-size: 28px; }
  .topbar { position: relative; }
}