:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --success: #0f766e;
  --warn: #b45309;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #eef4ff 0%, var(--bg) 240px);
  line-height: 1.7;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.page {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}
.hero {
  padding: 28px;
  border-radius: 24px;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(255,255,255,0.8);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}
h1 {
  margin: 14px 0 8px;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.15;
}
h2 {
  margin: 0 0 12px;
  font-size: 24px;
}
h3 {
  margin: 0 0 8px;
  font-size: 18px;
}
p.lead {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.card, .section {
  margin-top: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card { padding: 20px; }
.section { padding: 24px; }
.card p, .section p { margin: 0; color: var(--muted); }
ul {
  margin: 10px 0 0;
  padding-left: 20px;
}
li + li { margin-top: 6px; }
.kv {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 8px 16px;
  margin-top: 12px;
}
.kv div:nth-child(odd) { color: var(--muted); }
.footer {
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}
.nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.notice {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 14px;
  background: #f8fafc;
  border: 1px solid var(--line);
  color: var(--muted);
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: #ecfeff;
  color: var(--success);
  font-size: 12px;
  font-weight: 600;
  margin-right: 8px;
  margin-bottom: 8px;
}
@media (max-width: 640px) {
  .page { width: min(100% - 24px, 960px); padding-top: 20px; }
  .hero, .section, .card { padding: 18px; }
  .kv { grid-template-columns: 1fr; gap: 4px; }
}