:root{--bg:#f6f1e5;--paper:#fffdf8;--ink:#1b211d;--muted:#606962;--line:#d9cfba;--green:#245f4d;--blue:#2d6a8d;--gold:#b68a3b;--clay:#8c5c44}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#fbf7ee 0,#f6f1e5 50%,#ede6d6 100%);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC",sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 28px;border-bottom:1px solid var(--line);background:rgba(246,241,229,.95);backdrop-filter:blur(14px)}.brand{display:flex;align-items:center;gap:10px}.brand span{display:grid;place-items:center;width:34px;height:34px;border-radius:7px;background:var(--green);color:#fff;font-weight:800}.brand strong{font-size:17px}.brand em{font-size:12px;color:var(--muted);font-style:normal}.topbar nav{display:flex;gap:8px;flex-wrap:wrap}.topbar nav a{padding:7px 10px;border-radius:6px;color:var(--muted)}.topbar nav a.active,.topbar nav a:hover{background:#e8efe8;color:var(--green)}main{max-width:1240px;margin:0 auto;padding:28px}.page-title{display:flex;gap:24px;justify-content:space-between;margin:8px 0 22px;padding-bottom:18px;border-bottom:1px solid var(--line)}.crumb{color:var(--green);font-size:12px;font-weight:800;text-transform:uppercase}.page-title h1{margin:6px 0 8px;font-size:clamp(32px,5vw,56px);line-height:1.05;letter-spacing:0}.page-title p{max-width:780px;margin:0;color:var(--muted);font-size:18px}.hero{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;align-items:center;padding:10px 0 30px}.hero-copy h2{margin:12px 0;font-size:34px;line-height:1.18}.hero-copy p{font-size:17px;color:var(--muted)}.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.65);color:var(--green);font-size:12px;font-weight:800}.hero-cover{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;box-shadow:0 20px 50px rgba(48,43,24,.1)}section{margin:0 0 30px}.section-intro{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:12px}.section-intro p{margin:0;max-width:700px;color:var(--muted)}h2{margin:0 0 14px;font-size:23px}h3{line-height:1.3}.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:22px}.stat{padding:14px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.7)}.stat strong{display:block;font-size:28px;color:var(--green)}.stat span{display:block;margin-top:6px;color:var(--muted);font-size:13px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.card{display:block;padding:16px;border:1px solid var(--line);border-radius:8px;background:var(--paper);box-shadow:0 10px 24px rgba(46,39,21,.04);transition:transform .18s ease,border-color .18s ease}.card:hover{transform:translateY(-2px);border-color:#adc0ad}.card small{display:block;color:var(--green);font-weight:800}.card h3{margin:7px 0 8px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:14px}.plate-card{padding:10px}.plate-card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#efe8d8;border-radius:6px;margin-bottom:10px;border:1px solid rgba(217,207,186,.8)}.mosaic{display:grid;grid-template-columns:minmax(0,1.1fr) 280px;gap:14px;padding:18px;border:1px solid var(--line);border-radius:10px;background:rgba(255,253,248,.78)}.mosaic-main{position:relative;min-height:310px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#efe7d7}.mosaic-main img{width:100%;height:100%;object-fit:cover}.mosaic-main .caption{position:absolute;left:14px;right:14px;bottom:14px;padding:12px 14px;border-radius:8px;background:rgba(255,252,246,.88);border:1px solid rgba(217,207,186,.8)}.mosaic-main strong{display:block}.mosaic-main span{display:block;color:var(--muted);font-size:13px;margin-top:4px}.mosaic-side{display:grid;grid-template-columns:1fr 1fr;gap:10px}.mosaic-side a{display:block;min-height:145px;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#efe7d7}.mosaic-side img{width:100%;height:100%;object-fit:cover}.two-col{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px;align-items:start}.prose section,.viewer,.concept-expansion{padding:18px;border:1px solid var(--line);border-radius:8px;background:var(--paper);box-shadow:0 10px 24px rgba(46,39,21,.04)}.lead{font-size:20px;color:var(--green);font-weight:800}.detail-list{padding-left:22px}.detail-list li{margin:7px 0}.source-grid{display:grid;gap:12px}.source-item-deep{padding:14px;border-left:4px solid var(--gold);border-radius:0 8px 8px 0;background:#faf4e7}.source-item-deep h3{margin-top:0}.source-item-deep p{margin:8px 0}.excerpt{color:var(--muted)}.quiz{background:#fff8f1!important;border-color:#dfc4b7!important}.quiz button,.button,.filters button{border:1px solid var(--line);border-radius:6px;background:var(--green);color:#fff;padding:8px 12px;cursor:pointer}.quiz div{margin-top:12px;padding:12px;border:1px solid var(--line);border-radius:6px;background:#fff}.viewer{position:sticky;top:84px}.viewer-main{margin:0}.viewer-main img{width:100%;max-height:420px;object-fit:contain;background:#efe7d7;border-radius:6px}.viewer-main figcaption{margin-top:8px;color:var(--muted);font-size:14px}.thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}.thumbs button{padding:0;border:1px solid var(--line);border-radius:6px;background:#fff;cursor:pointer}.thumbs img{aspect-ratio:1;object-fit:cover}.learning-path{display:grid;grid-template-columns:1fr 1fr;gap:12px}.path-button{padding:14px;border:1px solid var(--line);border-radius:8px;background:var(--paper)}.path-button span{display:block;color:var(--muted);font-size:13px}.path-button strong{display:block}.disabled{opacity:.55}.filters{display:flex;gap:8px;flex-wrap:wrap}.filters button{background:#fff;color:var(--ink)}.filters button.active{background:var(--blue);color:#fff}.full-plate{width:100%;max-height:700px;object-fit:contain;background:#f0e8d7;border:1px solid var(--line);border-radius:8px}table{width:100%;border-collapse:collapse;background:var(--paper);border:1px solid var(--line);border-radius:8px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#eef3e7;color:var(--green)}footer{padding:28px;text-align:center;color:var(--muted);border-top:1px solid var(--line)}@media(max-width:860px){.topbar{position:static;align-items:flex-start;flex-direction:column;padding:12px 18px}main{padding:18px}.hero,.two-col,.mosaic{grid-template-columns:1fr}.hero-stats{grid-template-columns:1fr 1fr}.viewer{position:static}.page-title h1{font-size:36px}.learning-path{grid-template-columns:1fr}.section-intro{display:block}}