:root {
  --ink: #122033;
  --muted: #4b5c73;
  --paper: #f4f8ff;
  --card: #ffffff;
  --brand: #1d4ed8;
  --brand-2: #1e3a8a;
  --line: #d7e3f7;
  --ok: #0f766e;
}

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

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.top-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--brand-2);
  text-decoration: none;
  font-weight: 700;
  font-size: 20px;
}
.brand svg { display: block; }
nav.main { display: flex; gap: 8px; }
nav.main a {
  text-decoration: none;
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 999px;
}
nav.main a.on {
  background: #dbeafe;
  color: var(--brand-2);
  font-weight: 700;
}

.hero {
  max-width: 1120px;
  margin: 28px auto 12px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: stretch;
}
.hero-copy {
  background: linear-gradient(160deg, #1d4ed8 0%, #1e3a8a 100%);
  color: #fff;
  border-radius: 20px;
  padding: 42px 40px;
}
.hero-copy p { color: #dbeafe; }
.hero-copy h1 {
  margin: 8px 0 16px;
  font-size: 34px;
  line-height: 1.35;
}
.kicker {
  display: inline-block;
  background: rgba(255,255,255,0.14);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  border-radius: 10px;
  padding: 12px 18px;
  font-weight: 700;
}
.btn-win { background: #f59e0b; color: #1c1917; }
.btn-ghost { background: #fff; color: var(--brand-2); }
.hero-dl {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 26px;
}
.hero-dl h2 { margin-top: 0; font-size: 22px; }
.dl-mini a {
  display: block;
  text-decoration: none;
  color: var(--brand);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  margin-top: 10px;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 8px 24px 48px; }
.block { margin: 36px 0; }
.block h2 { font-size: 26px; margin-bottom: 12px; }
.scenes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.scene {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 22px 8px;
}
.scene h3 { margin: 0 0 8px; font-size: 18px; }
.full {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px 28px;
}
table.plain {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}
table.plain th, table.plain td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
table.plain th { background: #e8f0ff; }
.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  margin: 10px 0;
}
.faq summary { cursor: pointer; font-weight: 700; }

.foot {
  background: #0f172a;
  color: #cbd5e1;
  padding: 28px 24px 36px;
}
.foot-inner { max-width: 1120px; margin: 0 auto; }
.foot a { color: #93c5fd; }
.ok { color: #5eead4; }

@media (max-width: 860px) {
  .hero, .scenes { grid-template-columns: 1fr; }
  .hero-copy { padding: 28px 22px; }
  .hero-copy h1 { font-size: 26px; }
  nav.main a { padding: 8px 10px; }
}