:root{--paper:#faf7ef;--ink:#191510;--muted:#6b5f51;--east:#9d5125;--west:#416f89;--line:#ded0bb;--card:#fffdf7;--accent:#b27842;--nav-h:76px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Serif SC","Songti SC",serif;line-height:1.72;text-wrap:pretty}body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 20% 10%,rgba(157,81,37,.14),transparent 28%),radial-gradient(circle at 80% 0%,rgba(65,111,137,.16),transparent 32%),linear-gradient(90deg,rgba(25,21,16,.035) 1px,transparent 1px);background-size:auto,auto,42px 42px;z-index:-1}.topbar{position:sticky;top:12px;margin:12px auto 0;width:min(1180px,calc(100% - 24px));height:var(--nav-h);display:flex;align-items:center;gap:18px;padding:0 18px;border:1px solid rgba(25,21,16,.12);background:rgba(250,247,239,.82);backdrop-filter:blur(18px);border-radius:999px;z-index:20;box-shadow:0 16px 40px rgba(69,48,26,.08)}.brand{font-weight:900;color:var(--ink);text-decoration:none;letter-spacing:.04em}.nav{display:flex;gap:6px;flex:1;justify-content:center}.nav a,.mobile-panel a{color:var(--muted);text-decoration:none;padding:10px 14px;border-radius:999px;font-size:14px;transition:.25s}.nav a.active,.nav a:hover,.mobile-panel a.active{background:var(--ink);color:#fff}.print-btn,.menu-btn{border:0;border-radius:999px;background:var(--accent);color:#fff;padding:11px 16px;cursor:pointer;font-weight:700}.menu-btn{display:none;background:var(--ink)}.mobile-panel{display:none}.page{width:min(1180px,calc(100% - 28px));margin:0 auto}.section-anchor{scroll-margin-top:110px}.hero{min-height:calc(100dvh - 100px);display:grid;grid-template-columns:1.45fr .75fr;gap:48px;align-items:center;padding:72px 0 36px}.eyebrow{font-size:14px;letter-spacing:.16em;text-transform:uppercase;color:var(--east);font-weight:800}.hero h1{font-size:clamp(48px,8vw,116px);line-height:.95;letter-spacing:-.06em;margin:12px 0 24px;max-width:840px}.lead{font-size:clamp(19px,2vw,26px);max-width:760px;color:#3f362e}.hero-panel{align-self:end;background:var(--ink);color:#fff;border-radius:34px;padding:34px;box-shadow:0 30px 80px rgba(25,21,16,.22);transform:rotate(1.5deg)}.hero-actions{display:flex;gap:14px;flex-wrap:wrap}.primary,.secondary{display:inline-flex;text-decoration:none;border-radius:999px;padding:14px 20px;font-weight:800;transition:.25s}.primary{background:var(--ink);color:#fff}.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.primary:hover,.secondary:hover,.atlas-card:hover{transform:translateY(-2px)}.toc,.chapter{padding:64px 0;border-top:1px solid var(--line)}.toc h2,.chapter h2{font-size:clamp(34px,5vw,68px);line-height:1.05;letter-spacing:-.04em;margin:0}.atlas-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px;margin-top:26px}.atlas-card{min-height:170px;background:var(--card);border:1px solid var(--line);border-radius:30px;padding:24px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;justify-content:space-between;transition:.25s}.atlas-card:nth-child(1){grid-row:span 2;min-height:358px;background:#191510;color:#fff}.atlas-card span{font-family:ui-monospace,monospace;color:var(--accent)}.atlas-card b{font-size:28px;line-height:1.1}.atlas-card small{color:inherit;opacity:.72}.chapter-head{display:grid;grid-template-columns:80px 1fr;gap:20px;align-items:start;margin-bottom:24px}.chapter-head span{font-family:ui-monospace,monospace;color:var(--accent);font-size:22px;font-weight:900}.chapter p{font-size:19px;color:#312920;max-width:92ch}.king{position:relative}.king:before{content:"";display:block;height:10px;border-radius:99px;margin-bottom:42px;background:linear-gradient(90deg,var(--east),transparent)}.west:before{background:linear-gradient(90deg,var(--west),transparent)}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;margin:30px 0}.split>div,.quote,.note,.bento>div{background:rgba(255,253,247,.78);border:1px solid var(--line);border-radius:28px;padding:26px}.quote{font-size:26px;line-height:1.35;font-weight:800;color:var(--east)}.west .quote{color:var(--west)}.diagram{margin:24px 0;background:#fff;border:1px solid var(--line);border-radius:32px;padding:12px;break-inside:avoid;box-shadow:0 16px 50px rgba(65,45,21,.08)}.diagram img{display:block;width:100%;height:auto;border-radius:24px}.diagram figcaption{padding:12px 10px 4px;color:var(--muted);font-size:15px}.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}.data-table{width:100%;border-collapse:collapse;background:#fff;border-radius:22px;overflow:hidden;min-width:760px}.data-table th,.data-table td{text-align:left;padding:16px;border-bottom:1px solid var(--line);vertical-align:top}.data-table th{background:var(--ink);color:#fff}.bento{display:grid;grid-template-columns:1.3fr .8fr 1fr;gap:18px;margin:24px 0}.sources{background:#fff;border:1px solid var(--line);border-radius:30px;padding:28px}.sources a{display:block;color:var(--ink);padding:12px 0;border-top:1px solid var(--line)}.backtop{position:fixed;right:18px;bottom:18px;width:52px;height:52px;border-radius:50%;border:0;background:rgba(25,21,16,.86);color:#fff;cursor:pointer}.fade-in{animation:fade .5s both}@keyframes fade{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}@media(max-width:768px){:root{--nav-h:62px}.nav,.print-btn{display:none}.menu-btn{display:block;margin-left:auto}.topbar{top:8px;height:var(--nav-h)}.mobile-panel{position:fixed;left:14px;right:14px;top:86px;background:rgba(250,247,239,.94);backdrop-filter:blur(18px);border:1px solid var(--line);border-radius:24px;padding:12px;z-index:30;box-shadow:0 20px 60px rgba(0,0,0,.12)}.mobile-panel.open{display:grid;gap:6px}.hero,.split{grid-template-columns:1fr}.hero{padding-top:40px}.hero-panel{transform:none}.atlas-grid{grid-template-columns:1fr}.atlas-card:nth-child(1){min-height:220px}.chapter-head{grid-template-columns:1fr;gap:4px}.bento{grid-template-columns:1fr}.data-table{display:block;overflow-x:auto;white-space:nowrap}.data-table th,.data-table td{white-space:nowrap}.backtop{opacity:.88}}@media print{@page{margin:9mm 10mm}body{background:#fff;font-size:9.5pt;line-height:1.45}body:before,.topbar,.backtop,.mobile-panel{display:none!important}.page{width:100%;margin:0}.hero{min-height:0;display:block;padding:0 0 12px;border:1px solid #bbb;border-radius:4px}.hero h1{font-size:28pt;color:#111}.hero-panel,.hero-actions{display:none}.chapter,.toc{padding:14px 0}.chapter h2,.toc h2{font-size:20pt}.diagram{box-shadow:none;border-radius:4px;padding:4px;break-inside:avoid}.diagram img{max-height:210px;object-fit:contain}.atlas-grid,.bento,.split{grid-template-columns:1fr 1fr;gap:8px}.atlas-card,.split>div,.quote,.note,.bento>div,.sources{box-shadow:none;border-radius:4px;padding:10px}.fade-in{opacity:1;transform:none;animation:none}.data-table{font-size:8.5pt}}