:root {
  --ink: #0a1628;
  --ink-2: #13233d;
  --paper: #f3efe4;
  --gold: #c4a35a;
  --gold-2: #e0c57a;
  --line: #d7cbb0;
  --text: #243044;
  --muted: #5c6675;
  --btn: #c4a35a;
  --btn-ink: #1a1408;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--paper);
  line-height: 1.75;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.rail {
  width: 232px;
  background: var(--ink);
  color: #e8e0d0;
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px 20px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--gold-2);
  font-family: "Palatino Linotype", "Songti SC", serif;
  font-size: 26px;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-bottom: 1px solid #2a3d5c;
  padding-bottom: 18px;
  margin-bottom: 18px;
}

.brand svg { flex-shrink: 0; }

.rail nav a {
  display: block;
  color: #c9d0db;
  text-decoration: none;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  margin: 4px 0;
}
.rail nav a:hover { color: var(--gold-2); }
.rail nav a.active {
  color: var(--gold-2);
  border-left-color: var(--gold);
  background: #13233d;
}

.rail-note {
  margin-top: auto;
  font-size: 12px;
  color: #8b93a1;
  line-height: 1.6;
}

.main { flex: 1; min-width: 0; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 28px 64px; }

.hero {
  background: linear-gradient(160deg, #0a1628 0%, #1b3358 72%, #2a2a18 100%);
  color: #f6f0e4;
  padding: 48px 0 40px;
  margin-bottom: 8px;
}
.hero .wrap { padding-bottom: 0; }
.hero h1 {
  font-family: "Palatino Linotype", "Songti SC", serif;
  font-size: 34px;
  line-height: 1.35;
  font-weight: 600;
  margin: 0 0 16px;
}
.hero p { color: #d5cbb6; margin: 0 0 16px; }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 22px;
}
.chips span {
  border: 1px solid #6d5b32;
  color: var(--gold-2);
  padding: 4px 10px;
  font-size: 13px;
}

.btn {
  display: inline-block;
  text-decoration: none;
  padding: 12px 22px;
  font-weight: 600;
  margin-right: 10px;
  margin-bottom: 8px;
}
.btn-gold {
  background: var(--gold);
  color: var(--btn-ink);
}
.btn-gold:hover { background: var(--gold-2); }
.btn-line {
  border: 1px solid var(--gold);
  color: var(--gold-2);
}
.hero .btn-line { color: var(--gold-2); }

section { padding: 28px 0 8px; }
h2 {
  font-family: "Palatino Linotype", "Songti SC", serif;
  font-size: 24px;
  color: var(--ink);
  margin: 0 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
}
p { margin: 0 0 14px; }
.muted { color: var(--muted); }

.timeline {
  position: relative;
  padding-left: 22px;
  border-left: 2px solid var(--gold);
  margin: 18px 0 8px;
}
.timeline article { margin-bottom: 22px; }
.timeline h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--ink-2);
}
.clock {
  display: inline-block;
  font-size: 12px;
  color: #7a5d1e;
  background: #efe4c8;
  padding: 1px 8px;
  margin-bottom: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 18px;
  font-size: 15px;
}
th, td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
}
th { background: #ebe3d0; color: var(--ink); }

.faq dt {
  font-weight: 600;
  color: var(--ink);
  margin: 16px 0 6px;
}
.faq dd { margin: 0 0 8px; color: var(--text); }

.cta-band {
  background: #ebe3d0;
  border: 1px solid var(--line);
  padding: 20px 22px;
  margin: 20px 0;
}
.cta-band .btn-gold { color: var(--btn-ink); }

.dl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}
.dl-card {
  border: 1px solid var(--line);
  background: #fffdf7;
  padding: 16px;
}
.dl-card h3 { margin: 8px 0; font-size: 17px; }
.dl-card .btn { margin-top: 8px; }

.platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 18px;
}

ol.steps, ul { padding-left: 20px; }
ol.steps li, ul li { margin-bottom: 8px; }

footer {
  background: var(--ink);
  color: #c9d0db;
  padding: 28px 0 36px;
  font-size: 13px;
  line-height: 1.8;
}
footer .wrap { padding-bottom: 0; }
footer a { color: var(--gold-2); }
footer .safe {
  color: var(--gold-2);
  margin-bottom: 10px;
}

@media (max-width: 860px) {
  .layout { display: block; }
  .rail {
    width: 100%;
    height: auto;
    position: relative;
    padding: 16px 18px;
  }
  .rail-note { display: none; }
  .rail nav { display: flex; flex-wrap: wrap; gap: 6px; }
  .rail nav a { border-left: 0; border-bottom: 2px solid transparent; }
  .rail nav a.active { border-bottom-color: var(--gold); }
  .hero h1 { font-size: 26px; }
  .dl-grid { grid-template-columns: 1fr; }
}