:root {
  --bg: #fbfaf8;
  --text: #1f1d1a;
  --muted: #6b665e;
  --line: #e6e2db;
  --accent: #8a6d3b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 16px; }
.site-header { border-bottom: 1px solid var(--line); background: #fff; }
.site-header .wrap { display: flex; justify-content: space-between; align-items: center; height: 60px; }
.brand { font-weight: 700; font-size: 20px; letter-spacing: .04em; color: var(--text); text-decoration: none; }
nav a { margin-left: 20px; color: var(--muted); text-decoration: none; font-size: 15px; }
nav a:hover { color: var(--text); }
main { padding: 40px 16px 60px; }
.hero { padding: 24px 0 8px; }
h1 { font-size: 28px; line-height: 1.3; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 36px 0 8px; }
.cn { color: var(--muted); }
.lead { font-size: 18px; }
.meta { color: var(--muted); font-size: 14px; }
.contact { display: grid; grid-template-columns: 90px 1fr; gap: 6px 16px; margin: 0; }
.contact dt { color: var(--muted); }
.contact dd { margin: 0; }
.prose ul { padding-left: 22px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }
.cn-title { margin-top: 0; }
.site-footer { border-top: 1px solid var(--line); padding: 20px 0; color: var(--muted); font-size: 14px; }
@media (max-width: 520px) {
  .contact { grid-template-columns: 1fr; }
  .contact dt { margin-top: 8px; }
}