* {
  box-sizing: border-box;
}

:root {
  color-scheme: dark;
  --bg: #0e1116;
  --panel: #171b23;
  --panel-2: #1e232e;
  --line: #2a3140;
  --text: #e8ecf3;
  --muted: #8b94a7;
  --gold: #f1bc4b;
  --green: #0ecb81;
  --red: #f0454b;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
}

a {
  color: var(--gold);
  text-decoration: none;
}

.shell {
  width: min(920px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 42px 0 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gold);
  font-weight: 900;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 10px;
  background: rgba(241, 188, 75, 0.14);
  color: var(--gold);
}

.hero {
  margin-top: 28px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(241, 188, 75, 0.12), rgba(23, 27, 35, 0.98) 42%, var(--panel));
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 7vw, 56px);
  line-height: 1.08;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.pill {
  padding: 8px 12px;
  border: 1px solid rgba(241, 188, 75, 0.2);
  border-radius: 999px;
  background: rgba(241, 188, 75, 0.08);
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
}

.nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 18px 0 0;
}

.nav a {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
  text-align: center;
}

.content {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
}

h2 {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.25;
}

h3 {
  margin: 18px 0 8px;
  font-size: 17px;
}

p {
  margin: 0 0 10px;
  color: var(--muted);
}

ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

li + li {
  margin-top: 8px;
}

.notice {
  border-color: rgba(241, 188, 75, 0.3);
  background: rgba(241, 188, 75, 0.08);
}

.danger {
  border-color: rgba(240, 69, 75, 0.28);
  background: rgba(240, 69, 75, 0.08);
}

.ok {
  color: var(--green);
}

.footer {
  margin-top: 22px;
  color: var(--muted);
  font-size: 12px;
}

.footer + .footer {
  margin-top: 8px;
}

.footer a {
  color: var(--gold);
  font-weight: 700;
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

@media (max-width: 720px) {
  .shell {
    width: min(100vw - 28px, 920px);
    padding-top: 28px;
  }

  .hero {
    padding: 22px;
  }

  .nav {
    grid-template-columns: repeat(2, 1fr);
  }

  .card {
    padding: 18px;
  }
}