:root {
  --ink: #122033;
  --navy: #16324f;
  --navy-deep: #0c1c2e;
  --gold: #c9a44a;
  --gold-soft: #e8d59a;
  --paper: #f6f1e6;
  --line: #d7cbb3;
  --muted: #5d6b7a;
  --card: #fffdf8;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.85;
  font-size: 17px;
}

.mast {
  background: var(--navy-deep);
  color: #f3ead2;
  border-bottom: 4px solid var(--gold);
}
.mast-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 22px 0;
}
.brand-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 12px;
}
.brand-mark {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
}
.brand-name {
  font-size: 28px;
  letter-spacing: 0.18em;
  font-weight: 700;
}
.brand-sub {
  font-size: 13px;
  color: var(--gold-soft);
  letter-spacing: 0.08em;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}
.nav {
  display: flex;
  gap: 0;
  border-top: 1px solid #2a4663;
}
.nav a {
  color: #e8dcc0;
  text-decoration: none;
  padding: 12px 22px;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 15px;
}
.nav a.current {
  background: var(--gold);
  color: var(--navy-deep);
  font-weight: 700;
}
.nav a:hover { color: #fff; }

.hero {
  background: linear-gradient(160deg, #16324f 0%, #1e4a72 55%, #245886 100%);
  color: #f7f0dc;
  padding: 48px 0 40px;
}
.hero-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 22px;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 36px;
  align-items: center;
}
.hero h1 {
  font-size: 34px;
  line-height: 1.45;
  margin-bottom: 16px;
  font-weight: 700;
}
.hero p { font-size: 17px; margin-bottom: 22px; color: #efe4c4; }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  text-decoration: none;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 15px;
  border-radius: 2px;
}
.btn-gold {
  background: var(--gold);
  color: #1a1204;
  font-weight: 700;
}
.btn-line {
  border: 1px solid var(--gold-soft);
  color: var(--gold-soft);
}
.btn-line:hover { background: rgba(201,164,74,0.12); }
.hero-aside {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(232,213,154,0.35);
  padding: 18px 20px;
}
.hero-aside h3 {
  font-size: 16px;
  color: var(--gold-soft);
  margin-bottom: 10px;
}
.hero-aside li { margin-left: 18px; margin-bottom: 6px; }

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 36px 22px 60px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 32px;
}
.main h2 {
  font-size: 24px;
  color: var(--navy);
  border-left: 5px solid var(--gold);
  padding-left: 12px;
  margin: 36px 0 14px;
}
.main h2:first-child { margin-top: 0; }
.main p { margin-bottom: 12px; }
.main ul, .main ol { margin: 8px 0 16px 22px; }
.scene-box {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px 18px;
  margin: 14px 0 18px;
}
.scene-box strong { color: var(--navy); }
table.sheet {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0 20px;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 15px;
}
table.sheet th, table.sheet td {
  border: 1px solid var(--line);
  padding: 9px 10px;
  text-align: left;
}
table.sheet th { background: #efe4c8; color: var(--navy); }
.faq dt {
  font-weight: 700;
  color: var(--navy);
  margin-top: 16px;
}
.faq dd { margin: 6px 0 0 0; color: #2c3a48; }

.rail {
  position: sticky;
  top: 16px;
  align-self: start;
}
.rail-card {
  background: var(--navy);
  color: #f3ead2;
  padding: 18px 16px;
  margin-bottom: 16px;
}
.rail-card h3 {
  font-size: 16px;
  color: var(--gold-soft);
  margin-bottom: 10px;
}
.rail-card a {
  display: block;
  color: #fff;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid #2d4b68;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 14px;
}
.rail-note {
  background: #fff;
  border: 1px dashed var(--gold);
  padding: 14px;
  font-size: 14px;
  color: var(--muted);
}

.foot {
  background: var(--navy-deep);
  color: #c9d3dc;
  padding: 28px 22px;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 13px;
  line-height: 1.8;
}
.foot-inner { max-width: 1180px; margin: 0 auto; }
.foot a { color: var(--gold-soft); }
.safe { color: #e8d59a; margin-bottom: 8px; }

@media (max-width: 900px) {
  .hero-inner, .wrap { grid-template-columns: 1fr; }
  .hero h1 { font-size: 26px; }
  .rail { position: static; }
}