:root {
  --ink: #14233b;
  --ink-soft: #3d4b63;
  --gold: #9a7430;
  --gold-2: #c6a15a;
  --paper: #f3efe6;
  --paper-2: #e7e0d2;
  --white: #fffcf7;
  --line: #ddd4c4;
  --navy: #12263a;
  --danger: #7a3e2e;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.75;
}
a { color: var(--gold); }
img, svg { max-width: 100%; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-head {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--navy);
  color: #f7f1e4;
  border-bottom: 3px solid var(--gold);
}
.site-head .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand svg { display: block; }
.site-nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.site-nav a {
  color: #f3ead8;
  text-decoration: none;
  font-size: 14px;
}
.site-nav a:hover { color: var(--gold-2); }
.hero {
  background:
    radial-gradient(900px 280px at 90% -10%, rgba(198, 161, 90, 0.28), transparent 60%),
    var(--navy);
  color: #f7f3ea;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
  padding: 42px 0 48px;
}
.hero h1 {
  margin: 0 0 12px;
  font-size: 34px;
  line-height: 1.35;
  font-weight: 750;
}
.lead { margin: 0 0 14px; color: #e7decd; font-size: 16px; }
.feat {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}
.feat li {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(198, 161, 90, 0.45);
  padding: 4px 10px;
  font-size: 14px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.plat-note { margin: 12px 0 0; color: #d9d0c0; font-size: 14px; }
.sub-links { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 14px; }
.sub-links a { color: var(--gold-2); font-size: 14px; }
.hero-card {
  background: rgba(255, 252, 247, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px;
}
.hero-card svg { width: 100%; height: auto; display: block; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
}
.btn-win { background: var(--gold); color: #1a1408; }
.btn-win:hover { background: #e0c27a; }
.btn-line { background: transparent; color: #f7f3ea; border-color: rgba(247, 243, 234, 0.45); }
.btn-line:hover { border-color: var(--gold-2); color: var(--gold-2); }
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: #1d3b58; }
.btn-ghost { background: #fff; color: var(--navy); border-color: var(--line); }
main section { padding: 56px 0; }
main section:nth-child(even) { background: var(--white); }
main h2 {
  margin: 0 0 16px;
  font-size: 28px;
  line-height: 1.35;
  padding-left: 14px;
  border-left: 4px solid var(--gold);
}
main p { margin: 0 0 14px; }
main ul, main ol { margin: 0 0 14px; padding-left: 1.3em; }
main li { margin: 0 0 8px; }
.spec {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  margin: 8px 0 16px;
  font-size: 15px;
}
.spec th, .spec td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.spec th { background: var(--navy); color: #f7f3ea; font-weight: 650; }
.spec tr:nth-child(even) td { background: #faf7f1; }
.note {
  background: #fff8ec;
  border: 1px solid #ead7b0;
  border-left: 4px solid var(--danger);
  padding: 12px 14px;
  margin: 0 0 14px;
}
.dl-band { background: var(--navy); color: #f4efe6; }
.dl-band h2 { color: #f7f3ea; border-left-color: var(--gold-2); }
.dl-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 8px;
}
.dl-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 14px;
}
.dl-item p { margin: 0 0 10px; font-size: 14px; color: #e6dcc8; min-height: 3.2em; }
.dl-item .btn { width: 100%; }
.end-box {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 22px;
}
.end-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.faq-list { display: flex; flex-direction: column; gap: 18px; }
.faq-list article {
  background: var(--white);
  border-top: 2px solid var(--gold);
  padding: 14px 16px 6px;
}
.faq-list h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.45; }
.defs { margin: 0 0 14px; }
.defs dt { font-weight: 700; margin-top: 10px; }
.defs dd { margin: 4px 0 0; color: var(--ink-soft); }
.site-foot {
  background: #0c1a2b;
  color: #d9d0c2;
  padding: 28px 0 36px;
  font-size: 14px;
}
.site-foot p { margin: 0 0 8px; }
@media (max-width: 900px) {
  .hero-grid, .dl-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .site-head .wrap { align-items: flex-start; flex-direction: column; padding: 10px 0; }
  .dl-item p { min-height: 0; }
}