/* 第1套：场景驱动 · 海军金 · 左右分栏 + 右侧摘录 */
:root {
  --ink: #122033;
  --navy: #0b1f3a;
  --gold: #c9a227;
  --gold-deep: #9a7b16;
  --paper: #f4f0e6;
  --card: #ffffff;
  --line: #d8d0bc;
  --muted: #5c6b7a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
}
a { color: var(--gold-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { vertical-align: middle; }
.wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.topbar {
  background: var(--navy);
  color: #e8d9a8;
  font-size: 13px;
  letter-spacing: 0.08em;
  padding: 6px 0;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}
.topbar .wrap { display: flex; justify-content: space-between; }

header.site {
  background: #081627;
  border-bottom: 3px solid var(--gold);
  position: sticky;
  top: 0;
  z-index: 20;
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}
.brand {
  color: #f3e3b0;
  font-size: 26px;
  letter-spacing: 0.16em;
  font-weight: 700;
  font-family: "Microsoft YaHei", sans-serif;
}
.brand small {
  display: block;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: #b8a46a;
  font-weight: 400;
}
nav.main { display: flex; gap: 8px; font-family: "Microsoft YaHei", sans-serif; }
nav.main a {
  color: #d7c48a;
  padding: 8px 16px;
  border: 1px solid transparent;
}
nav.main a.on, nav.main a:hover {
  color: #081627;
  background: var(--gold);
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  gap: 36px;
  padding: 48px 0 36px;
  align-items: stretch;
}
.hero h1 {
  font-size: 32px;
  line-height: 1.35;
  margin-bottom: 16px;
  color: var(--navy);
}
.hero p.lead { font-size: 17px; color: #2c3d4f; margin-bottom: 22px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 15px;
  padding: 12px 22px;
  border: 1px solid var(--gold-deep);
  background: var(--gold);
  color: #1a1404;
  font-weight: 700;
}
.btn:hover { background: #ddb52e; text-decoration: none; }
.btn.ghost {
  background: transparent;
  color: var(--navy);
}
.hero-panel {
  background: var(--navy);
  color: #f0e6c8;
  padding: 28px 26px;
  border-top: 6px solid var(--gold);
}
.hero-panel h2 { color: var(--gold); font-size: 20px; margin-bottom: 12px; }
.hero-panel ol { padding-left: 20px; }
.hero-panel li { margin: 8px 0; }

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 36px;
  padding-bottom: 48px;
}
article.main section {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 26px 28px;
  margin-bottom: 22px;
}
article.main h2 {
  font-size: 22px;
  color: var(--navy);
  border-left: 4px solid var(--gold);
  padding-left: 12px;
  margin-bottom: 14px;
}
article.main p { margin: 10px 0; }
article.main ul, article.main ol { margin: 10px 0 10px 22px; }
aside.rail {
  position: sticky;
  top: 88px;
  align-self: start;
}
.rail-box {
  background: #fffdf6;
  border: 1px solid var(--line);
  padding: 18px 16px;
  margin-bottom: 16px;
}
.rail-box h3 {
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: var(--navy);
  margin-bottom: 8px;
}
.scene-table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 15px; }
.scene-table th {
  background: var(--navy);
  color: #f3e3b0;
  text-align: left;
  padding: 8px 10px;
  font-weight: 600;
}
.scene-table td { border-bottom: 1px solid var(--line); padding: 8px 10px; }
.scene-table tr:nth-child(even) td { background: #faf6ea; }

.faq details {
  border-bottom: 1px dashed var(--line);
  padding: 10px 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--navy);
  font-family: "Microsoft YaHei", sans-serif;
}
.faq details p { margin-top: 8px; }

footer.site {
  background: var(--navy);
  color: #c9c1a8;
  padding: 28px 0 22px;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 13px;
  line-height: 1.8;
}
footer.site .fnav { display: flex; gap: 18px; margin-bottom: 10px; }
footer.site a { color: #e8d9a8; }
.safe { color: #f3e3b0; }

@media (max-width: 900px) {
  .hero, .layout { grid-template-columns: 1fr; }
  aside.rail { position: static; }
  nav.main { flex-wrap: wrap; }
}