:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --text: #1a1a18;
  --muted: #6d6d66;
  --line: #deddd7;
  --accent: #2f4c3d;
  --max: 1120px;
  --serif: ui-serif, "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
.wrap { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(222,221,215,.85);
  background: rgba(247,246,242,.93);
  backdrop-filter: blur(14px);
}
.nav { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: baseline; gap: 10px; font-weight: 650; letter-spacing: .02em; }
.brand small { color: var(--muted); font-weight: 450; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }
.menu { display: flex; align-items: center; gap: 24px; font-size: 14px; color: #3d3d39; }
.hero { padding: 104px 0 84px; border-bottom: 1px solid var(--line); }
.eyebrow { font-size: 13px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-bottom: 20px; }
h1 { font-family: var(--serif); font-size: clamp(48px, 8vw, 90px); line-height: 1.04; font-weight: 520; letter-spacing: -.03em; margin: 0 0 26px; max-width: 900px; }
.lead { font-family: var(--serif); font-size: clamp(21px, 3vw, 31px); line-height: 1.55; max-width: 860px; margin: 0; color: #34342f; }
.identity { margin-top: 36px; font-size: 14px; color: var(--muted); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--text); border-radius: 999px; font-size: 14px; }
.button.primary { background: var(--text); color: #fff; }
.button.primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
section { padding: 72px 0; border-bottom: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 1fr 2fr; gap: 32px; margin-bottom: 42px; }
.section-head h2 { font-family: var(--serif); font-weight: 520; font-size: 34px; margin: 0; }
.section-head p { margin: 3px 0 0; color: var(--muted); max-width: 720px; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.card { min-height: 220px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 26px; display: flex; flex-direction: column; justify-content: space-between; transition: transform .18s ease, border-color .18s ease; }
.card:hover { transform: translateY(-2px); border-color: #b9b8b0; }
.card .kicker { color: var(--muted); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }
.card h3 { font-family: var(--serif); font-size: 24px; line-height: 1.35; margin: 18px 0 12px; font-weight: 540; }
.card p { color: var(--muted); margin: 0; font-size: 14px; }
.card .arrow { margin-top: 28px; font-size: 18px; }
.columns { display: grid; grid-template-columns: 1.25fr .75fr; gap: 50px; align-items: start; }
.prose { font-family: var(--serif); font-size: 20px; line-height: 1.9; }
.prose p { margin: 0 0 1.2em; }
.meta-list { border-top: 1px solid var(--line); }
.meta-row { display: flex; justify-content: space-between; gap: 20px; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.meta-row span:first-child { color: var(--muted); }
footer { padding: 38px 0 56px; color: var(--muted); font-size: 13px; }
.footer-row { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.page-hero { padding: 82px 0 50px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(42px, 6vw, 70px); }
.page-hero p { max-width: 760px; color: var(--muted); font-size: 18px; }
.list { display: grid; gap: 0; }
.list-item { display: grid; grid-template-columns: 150px 1fr auto; gap: 26px; padding: 28px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.list-item .date, .list-item .tag { color: var(--muted); font-size: 13px; }
.list-item h3 { font-family: var(--serif); margin: 0; font-size: 24px; font-weight: 530; }
.notice { padding: 18px 20px; border: 1px dashed #b8b7af; border-radius: 12px; color: var(--muted); background: rgba(255,255,255,.45); }
@media (max-width: 820px) {
  .menu { gap: 14px; }
  .menu a:nth-child(3) { display:none; }
  .hero { padding: 78px 0 64px; }
  .section-head, .columns { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .card { min-height: 190px; }
  .list-item { grid-template-columns: 1fr; gap: 6px; }
}
@media (max-width: 520px) {
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  .brand small { display: none; }
  .menu { gap: 12px; font-size: 13px; }
  h1 { font-size: 52px; }
}

/* Article pages */
.article-wrap { width: min(calc(100% - 40px), 820px); margin: 0 auto; }
.article-hero { padding: 82px 0 54px; border-bottom: 1px solid var(--line); }
.article-hero h1 { font-size: clamp(44px, 6.2vw, 68px); margin-bottom: 18px; }
.back-link { display: inline-block; margin-bottom: 34px; color: var(--muted); font-size: 14px; }
.back-link:hover { color: var(--accent); }
.article-deck { font-family: var(--serif); font-size: clamp(20px, 3vw, 27px); line-height: 1.65; color: #383832; max-width: 720px; margin: 0; }
.article-meta { display: grid; gap: 4px; margin-top: 26px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.article-shell { padding: 66px 0 76px; }
.article-body { max-width: 720px; margin: 0 auto; }
.article-body p:first-child { margin-top: 0; }
.article-note { max-width: 720px; margin: 54px auto 0; padding: 24px 0 0; border-top: 1px solid var(--line); color: var(--muted); }
.article-note p { margin: 10px 0 22px; font-size: 14px; }
.note-label { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.article-facts { margin: 0; border-top: 1px solid var(--line); }
.article-facts div { display: grid; grid-template-columns: 110px 1fr; gap: 18px; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.article-facts dt { color: var(--muted); }
.article-facts dd { margin: 0; color: var(--text); }
.article-nav { max-width: 720px; margin: 54px auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.article-nav a, .article-nav-empty { border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.55); padding: 18px 20px; min-height: 86px; display: flex; flex-direction: column; justify-content: center; }
.article-nav span { color: var(--muted); font-size: 12px; }
.article-nav strong { margin-top: 5px; font-family: var(--serif); font-size: 18px; font-weight: 530; }
.article-nav-empty { opacity: .58; }
.list-link { transition: padding-left .16s ease, color .16s ease; }
.list-link:hover { padding-left: 8px; color: var(--accent); }

@media (max-width: 520px) {
  .article-wrap { width: min(calc(100% - 28px), 820px); }
  .article-hero { padding: 56px 0 42px; }
  .article-shell { padding: 48px 0 58px; }
  .article-hero h1 { font-size: 44px; }
  .article-body { font-size: 18px; line-height: 1.92; }
  .article-nav { grid-template-columns: 1fr; }
}