:root{
  --bg:#eff7ee;
  --paper:#fffdf7;
  --ink:#182126;
  --muted:#5c6b72;
  --line:#d4e0d6;
  --accent:#1f7f6d;
  --accent-2:#f06d3a;
  --accent-3:#d7f36d;
  --shadow:0 20px 45px rgba(24,33,38,.08);
  --radius:26px;
  --sans:"Avenir Next","PingFang SC","Noto Sans SC",sans-serif;
  --serif:"Iowan Old Style","Noto Serif SC","Songti SC",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.68;
  background:
    radial-gradient(circle at 10% 10%, rgba(215,243,109,.38), transparent 24%),
    radial-gradient(circle at 85% 14%, rgba(31,127,109,.16), transparent 22%),
    linear-gradient(180deg,#f6fbf2 0%,#edf7ee 38%,#eaf2f7 100%);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.shell{width:min(1240px,calc(100vw - 36px));margin:0 auto;padding:24px 0 88px}
.nav{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;margin-bottom:18px;
  background:rgba(255,253,247,.86);backdrop-filter:blur(16px);
  border:1px solid rgba(212,224,214,.92);border-radius:999px;box-shadow:var(--shadow)
}
.nav-links,.crumbs{display:flex;gap:12px;flex-wrap:wrap}
.nav a,.crumbs a{font-size:14px;color:var(--muted)}
.brand{font-weight:800;letter-spacing:.03em}
.hero,.card,.side-card,.reading-card,.plate-card,.glossary-card,.stat-card,.quote-card,.question-card,.path-card,.callout{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)
}
.hero{display:grid;grid-template-columns:1.18fr .92fr;gap:24px;padding:28px}
.hero h1,.page-title{margin:0;font-family:var(--serif);line-height:1.06}
.hero h1{font-size:clamp(38px,4vw,66px)}
.subtitle{font-size:18px;color:var(--muted);max-width:760px}
.lead{font-size:17px;color:#29333b}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;text-transform:uppercase;letter-spacing:.19em;color:var(--accent);font-weight:850}
.chips,.meta,.actions{display:flex;gap:10px;flex-wrap:wrap}
.chips{margin:18px 0}
.chip,.meta span{
  display:inline-flex;align-items:center;padding:7px 12px;border-radius:999px;
  font-size:12px;font-weight:800;background:#eef7ef;color:#295547
}
.actions{margin-top:22px}
.button{
  display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;
  border-radius:999px;border:1px solid var(--line);background:#fff;font-weight:800
}
.button.primary{background:linear-gradient(135deg,var(--accent),#1d9984);color:#fff;border-color:transparent}
.hero-visual{display:flex;flex-direction:column;gap:16px}
.cover-box{
  aspect-ratio:4/5;border-radius:22px;overflow:hidden;padding:20px;
  background:linear-gradient(180deg,#f8fbf5,#eef5ea);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center
}
.cover-box img{height:100%;object-fit:contain}
.mini-note{
  padding:18px 20px;border-radius:20px;border:1px solid rgba(31,127,109,.15);
  background:linear-gradient(180deg,rgba(31,127,109,.08),rgba(240,109,58,.06))
}
.mini-note strong,.callout strong{display:block;margin-bottom:8px}
.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(28px,2.6vw,42px)}
.section-head p{margin:0;color:var(--muted);max-width:780px}
.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)
}
.thumb{
  aspect-ratio:4/3;border-radius:18px;margin-bottom:16px;padding:12px;overflow:hidden;
  background:#f2f6ef;border:1px solid var(--line);display:flex;align-items:center;justify-content:center
}
.thumb img{width:100%;height:100%;object-fit:contain}
.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(0,1.38fr) minmax(290px,.82fr);gap:22px}
.stack{display:grid;gap:18px}
.callout{padding:18px 20px;background:linear-gradient(180deg,#fffef8,#f4f8f2)}
.list{display:grid;gap:10px;margin:0;padding-left:18px}
.route-links{display:grid;gap:12px}
.route-link,.plate-mini{
  display:grid;gap:12px;align-items:start;padding:14px 16px;border-radius:18px;
  border:1px solid var(--line);background:#fbfdf9
}
.route-link{grid-template-columns:1fr}
.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:#f6faf5}
.question-card details summary{cursor:pointer;font-weight:800}
.question-card details p{margin-top:10px}
.plate-viewer{display:grid;gap:12px}
.plate-mini{grid-template-columns:84px 1fr}
.mini-thumb{
  aspect-ratio:1/1;border-radius:14px;padding:8px;background:#f2f6ef;border:1px solid var(--line);
  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:#fff;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-2);font-style:normal;font-weight:800}
.search{
  width:100%;padding:14px 16px;border-radius:18px;border:1px solid var(--line);
  background:#fffefb;font:inherit
}
.plate-stage{padding:20px;border-radius:22px;background:#f4f8f1;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,rgba(215,243,109,.18),rgba(31,127,109,.06))}
.quote-card blockquote{margin:0;font-size:24px;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{width:100%;min-width:unset}
}