:root {
  --ink: #10283d;
  --muted: #637481;
  --paper: #f6f2e9;
  --card: #fffdf8;
  --line: rgba(16, 40, 61, 0.14);
  --accent: #2c628c;
  --gold: #b86f21;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 91% 0%, rgba(184, 111, 33, 0.14), transparent 25rem),
    var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

.page-shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding-bottom: 48px;
}

.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 13px;
  background: var(--ink);
  color: #fff;
  font-family: "Songti SC", serif;
  font-size: 28px;
}

.brand strong { display: block; font-size: 18px; }
.brand small { display: block; color: var(--muted); font-size: 11px; }

.site-head nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
}

.site-head nav a { color: var(--muted); text-decoration: none; }

.page-main { min-height: 64vh; }

.content-card,
.hub-head,
.list-item,
.policy-note {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--card);
}

.content-card { padding: clamp(24px, 5vw, 52px); }

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
  color: var(--muted);
  font-size: 12px;
}

.crumbs a { text-decoration: none; }

.eyebrow {
  margin: 0;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

h1 {
  margin: 12px 0 16px;
  font-family: "Songti SC", STSong, serif;
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.22;
  letter-spacing: -0.025em;
}

h2 { font-size: 20px; }

.meta { color: var(--muted); font-size: 12px; }

.article-body {
  margin-top: 32px;
  color: #263c4c;
  font-size: 16px;
}

.article-body p { margin: 0 0 18px; }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.tag {
  padding: 6px 10px;
  border-radius: 999px;
  background: #edf2f6;
  color: var(--muted);
  font-size: 11px;
}

.access-notice {
  margin: 26px 0;
  padding: 18px;
  border-left: 4px solid var(--gold);
  border-radius: 0 12px 12px 0;
  background: #fff7e9;
  color: #6d522f;
}

.page-actions { margin-top: 30px; }

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 16px;
  border-radius: 10px;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  color: #fff;
}

.policy-note {
  margin-top: 16px;
  padding: 18px 20px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}

.hub-head {
  padding: clamp(24px, 5vw, 48px);
}

.hub-head > p {
  max-width: 720px;
  color: var(--muted);
}

.article-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.list-item {
  padding: 20px 24px;
}

.list-item h2 { margin: 6px 0 8px; }
.list-item h2 a { color: var(--ink); text-decoration: none; }
.list-item p { margin: 0; color: var(--muted); font-size: 13px; }

.site-foot {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.75;
}

.site-foot p { margin: 5px 0; }
.site-foot a { text-decoration: none; }

@media (max-width: 680px) {
  .site-head { align-items: flex-start; }
  .site-head nav { display: none; }
  .content-card,
  .hub-head,
  .list-item { border-radius: 16px; }
}