:root {
  color-scheme: light dark;
  --bg: #f5f7fb;
  --panel: rgba(255,255,255,.9);
  --text: #182033;
  --muted: #5e687b;
  --line: #dfe5ef;
  --brand: #6254e7;
  --brand2: #30a4c7;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: inherit; }
.wrap { width: min(920px, calc(100% - 40px)); margin: 0 auto; }
.hero {
  padding: 76px 0 64px;
  color: #fff;
  background: radial-gradient(circle at 80% 10%, #36b5cb 0, transparent 36%),
              linear-gradient(135deg, #3e348f, #6759e9 58%, #378eae);
}
.hero h1 { margin: 16px 0 8px; font-size: clamp(34px, 6vw, 58px); line-height: 1.14; letter-spacing: -.04em; }
.hero p { margin: 0; max-width: 650px; color: rgba(255,255,255,.86); font-size: 18px; }
.badge { display: inline-block; padding: 6px 12px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; background: rgba(255,255,255,.1); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 42px 0 22px; }
.card, .document {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 12px 36px rgba(31,39,72,.07);
}
.card { padding: 26px; text-decoration: none; transition: transform .18s, box-shadow .18s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 18px 46px rgba(31,39,72,.12); }
.card h2 { margin: 12px 0 5px; font-size: 21px; }
.card p { margin: 0; color: var(--muted); }
.icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; background: #eeeafd; color: var(--brand); font-weight: 800; }
.document { margin: 38px auto; padding: clamp(24px, 6vw, 58px); }
.document h1 { margin: 0 0 6px; font-size: clamp(30px, 5vw, 46px); line-height: 1.2; }
.document h2 { margin: 34px 0 8px; font-size: 21px; }
.document p, .document li { color: var(--muted); }
.meta { margin: 0 0 34px; color: var(--brand) !important; }
.back { display: inline-block; margin-bottom: 24px; color: var(--brand); text-decoration: none; }
.notice { padding: 18px 20px; border-radius: 14px; border: 1px solid #cbc5fa; background: #f1efff; color: #40379f !important; }
footer { padding: 28px 0 48px; color: var(--muted); text-align: center; }
@media (max-width: 720px) {
  .cards { grid-template-columns: 1fr; }
  .hero { padding: 54px 0 48px; }
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #10131b; --panel: #181d28; --text: #eef1f8; --muted: #abb4c7; --line: #2c3444; }
  .icon { background: #2a2650; }
  .notice { background: #282448; border-color: #4c4481; color: #d8d3ff !important; }
}