:root {
  color-scheme: light;
  --ink: #20251c;
  --muted: #737a6c;
  --line: #e6e9e1;
  --surface: #f5f7f2;
  --accent: #526548;
  --max: 860px;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  color: var(--ink);
  background: #fff;
}

* { box-sizing: border-box; }
body { margin: 0; background: #fff; }
a { color: inherit; text-underline-offset: 3px; }
.site-header { border-bottom: 1px solid var(--line); }
.nav { display: flex; justify-content: space-between; align-items: center; gap: 24px; max-width: var(--max); margin: 0 auto; padding: 25px 24px; }
.brand { font-family: Georgia, "Times New Roman", serif; font-size: 27px; letter-spacing: -1px; text-decoration: none; }
.brand span { margin-left: 12px; padding-left: 12px; border-left: 1px solid #cdd2c7; font-family: "Songti SC", SimSun, serif; font-size: 15px; letter-spacing: 0; }
.nav-links { display: flex; flex-wrap: wrap; gap: 16px; color: var(--muted); font-size: 14px; }
.nav-links a:hover { color: var(--ink); }
main { max-width: var(--max); margin: 0 auto; padding: 58px 24px 90px; }
.eyebrow { margin: 0 0 12px; color: var(--muted); font-size: 12px; letter-spacing: 2px; text-transform: uppercase; }
h1 { margin: 0 0 18px; font-family: Georgia, "Songti SC", SimSun, serif; font-size: clamp(30px, 6vw, 48px); font-weight: 400; letter-spacing: -1px; line-height: 1.25; }
h2 { margin: 40px 0 10px; font-size: 21px; font-weight: 500; line-height: 1.4; }
h3 { margin: 26px 0 7px; font-size: 17px; font-weight: 500; }
p, li { font-size: 16px; }
.lede { max-width: 700px; color: #5f6759; font-size: 18px; }
.notice { margin: 28px 0 38px; padding: 18px 20px; border: 1px solid #e4e9dc; background: var(--surface); color: #56634e; }
.meta { margin-top: 30px; color: var(--muted); font-size: 13px; }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 32px; }
.card { display: block; padding: 20px; border: 1px solid var(--line); text-decoration: none; }
.card:hover { border-color: #b9c4b0; background: #fbfcfa; }
.card strong { display: block; margin-bottom: 5px; font-weight: 500; }
.card small { color: var(--muted); }
.footer { max-width: var(--max); margin: 0 auto; padding: 22px 24px 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer a { margin-right: 16px; }
@media (max-width: 640px) {
  .nav { align-items: flex-start; flex-direction: column; padding: 20px 18px; }
  main { padding: 42px 18px 68px; }
  .cards { grid-template-columns: 1fr; }
  .footer { padding-left: 18px; padding-right: 18px; }
}