:root{
  --bg:#f4f0e8;
  --paper:#fffdf8;
  --ink:#1f2430;
  --muted:#5f6776;
  --line:#d8d0c2;
  --accent:#9a3f22;
  --accent-2:#1f5d63;
  --warm:#eadcc8;
  --shadow:0 18px 40px rgba(31,36,48,.08);
  --radius:24px;
  --serif:"Iowan Old Style","Songti SC","Noto Serif SC",serif;
  --sans:"Avenir Next","PingFang SC","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:
    radial-gradient(circle at top left, rgba(154,63,34,.10), transparent 28%),
    linear-gradient(180deg,#f8f4ec 0%,#f2ede3 38%,#efe7da 100%);
  font-family:var(--sans);
  line-height:1.65;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.shell{width:min(1240px,calc(100vw - 40px));margin:0 auto;padding:24px 0 80px}
.nav{
  position:sticky;top:0;z-index:20;
  display:flex;gap:14px;align-items:center;justify-content:space-between;
  padding:16px 20px;margin:8px auto 18px;
  background:rgba(255,253,248,.88);backdrop-filter:blur(14px);
  border:1px solid rgba(216,208,194,.85);border-radius:999px;box-shadow:var(--shadow)
}
.nav-links,.crumbs{display:flex;gap:14px;flex-wrap:wrap}
.nav a,.crumbs a{font-size:14px;color:var(--muted)}
.brand{font-weight:700;letter-spacing:.04em}
.hero,.card,.side-card,.reading-card,.plate-card,.glossary-card,.path-card,.question-card,.quote-card,.stat-card,.callout{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)
}
.hero{display:grid;grid-template-columns:1.35fr .95fr;gap:26px;padding:28px}
.hero h1,.page-title{font-family:var(--serif);line-height:1.08;margin:0}
.hero h1{font-size:clamp(36px,4vw,64px)}
.subtitle{font-size:18px;color:var(--muted);max-width:760px}
.lead{font-size:17px;color:#31384a}
.kicker{display:inline-flex;gap:8px;align-items:center;font-size:12px;text-transform:uppercase;letter-spacing:.18em;color:var(--accent);font-weight:800}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.chip{
  display:inline-flex;align-items:center;padding:7px 12px;border-radius:999px;
  background:var(--warm);color:#6d472b;font-size:13px;font-weight:700
}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.button{
  padding:12px 18px;border-radius:999px;border:1px solid var(--line);
  background:#fffaf0;font-weight:700
}
.button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.hero-visual{display:flex;flex-direction:column;gap:16px}
.cover-box{
  aspect-ratio:4/5;border-radius:20px;overflow:hidden;background:#f2ebdf;
  border:1px solid var(--line);padding:18px;display:flex;align-items:center;justify-content:center
}
.cover-box img{height:100%;object-fit:contain}
.mini-note{padding:16px 18px;background:#f6f0e6;border-radius:18px;border:1px solid var(--line)}
.section{margin-top:28px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:0 0 14px}
.section-head h2,.section-head h3,.page-title{font-size:clamp(26px,2.5vw,40px)}
.section-head p{margin:0;color:var(--muted);max-width:760px}
.grid{display:grid;gap:18px}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card,.side-card,.reading-card,.plate-card,.question-card,.quote-card,.stat-card,.path-card{padding:20px}
.card h3,.side-card h3,.reading-card h3,.plate-card h3,.question-card h3,.path-card h3{margin:0 0 10px;font-size:22px;font-family:var(--serif)}
.card p,.side-card p,.reading-card p,.plate-card p,.question-card p,.path-card p,.callout p{margin:0;color:#333b4a}
.thumb{
  aspect-ratio:4/3;border-radius:18px;background:#efe7db;border:1px solid var(--line);
  margin-bottom:16px;padding:12px;display:flex;align-items:center;justify-content:center;overflow:hidden
}
.thumb img{width:100%;height:100%;object-fit:contain}
.meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.meta span{font-size:12px;color:var(--muted);padding:6px 10px;border-radius:999px;background:#f2ede3}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat-card strong{display:block;font-size:34px;font-family:var(--serif)}
.stat-card span{color:var(--muted);font-size:14px}
.layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,.8fr);gap:22px}
.stack{display:grid;gap:18px}
.callout{padding:18px 20px;background:linear-gradient(180deg,#fff9f0,#f7efe2)}
.callout strong{display:block;margin-bottom:8px;font-size:15px;letter-spacing:.04em}
.list{display:grid;gap:10px;padding-left:18px;margin:0}
.list li{padding-left:4px}
.route-links{display:grid;gap:12px}
.route-link,.plate-mini{
  display:grid;grid-template-columns:1fr auto;gap:10px;align-items:start;
  padding:14px 16px;border-radius:18px;border:1px solid var(--line);background:#fffaf1
}
.route-link span:last-child,.plate-mini p,.muted{color:var(--muted)}
.reading-card .subgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:14px}
.reading-card .subcell{padding:14px;border-radius:16px;background:#f6f0e6}
.question-card details summary{cursor:pointer;font-weight:700}
.question-card details p{margin-top:10px}
.plate-viewer{display:grid;gap:12px}
.plate-mini{grid-template-columns:86px 1fr}
.mini-thumb{
  aspect-ratio:1/1;border-radius:14px;background:#efe8dc;border:1px solid var(--line);
  padding:8px;display:flex;align-items:center;justify-content:center
}
.mini-thumb img{width:100%;height:100%;object-fit:contain}
.page-footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px}
.page-footer a{display:block;padding:16px 18px;border-radius:18px;background:#fffaf0;border:1px solid var(--line);min-width:220px}
.glossary-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.glossary-card strong{font-size:22px;font-family:var(--serif)}
.glossary-card em{display:block;margin:4px 0 8px;color:var(--accent);font-style:normal;font-weight:700}
.search{
  width:100%;padding:14px 16px;border-radius:18px;border:1px solid var(--line);
  background:#fffdf8;font:inherit
}
.plate-stage{
  padding:20px;border-radius:20px;background:#f8f4eb;border:1px solid var(--line)
}
.plate-stage img{max-height:720px;margin:0 auto;object-fit:contain}
.evidence{font-size:14px;color:var(--muted)}
.quote-card{background:linear-gradient(180deg,#fff8ee,#f4eadc)}
.quote-card blockquote{margin:0;font-size:22px;line-height:1.5;font-family:var(--serif)}
.quote-card cite{display:block;margin-top:10px;color:var(--muted)}
.hidden{display:none !important}
@media (max-width:1040px){
  .hero,.layout,.grid.cols-4,.grid.cols-3,.grid.cols-2,.stats,.glossary-list{grid-template-columns:1fr 1fr}
  .layout{grid-template-columns:1fr}
}
@media (max-width:760px){
  .shell{width:min(100vw - 24px,1240px);padding-top:12px}
  .nav{border-radius:24px;padding:14px 16px}
  .hero,.grid.cols-4,.grid.cols-3,.grid.cols-2,.stats,.glossary-list{grid-template-columns:1fr}
  .hero{padding:22px}
  .section-head{display:block}
  .page-footer a{min-width:unset;width:100%}
}