:root{--ink:#17201b;--muted:#657068;--paper:#f6f3eb;--card:#fffdf8;--line:#d8d4c9;--green:#1f563e;--gold:#b3822d}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.72 ui-serif,"Songti SC",Georgia,serif}header{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;padding:14px max(20px,calc((100% - 1120px)/2));background:rgba(246,243,235,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}a{color:var(--green);text-decoration-thickness:1px;text-underline-offset:3px}.brand{font-weight:800;text-decoration:none;color:var(--ink);letter-spacing:.08em}nav{display:flex;gap:20px}nav a{text-decoration:none;color:var(--muted);font:14px ui-sans-serif,system-ui}nav a.active{color:var(--green);font-weight:700}main{max-width:1120px;margin:auto;padding:56px 24px 90px}.hero{max-width:820px;padding:55px 0 36px}.eyebrow{font:700 12px ui-sans-serif,system-ui;color:var(--gold);letter-spacing:.16em}.hero h1,.page-head h1{font-size:clamp(2.4rem,6vw,5rem);line-height:1.08;margin:.3em 0}.hero p,.page-head p{font-size:1.18rem;color:var(--muted);max-width:720px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0 70px}.stats article{border-top:2px solid var(--ink);padding:16px 4px}.stats strong{display:block;font:700 2rem ui-sans-serif,system-ui}.stats span{color:var(--muted)}h2{line-height:1.35}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{display:flex;flex-direction:column;gap:10px;min-height:150px;padding:26px;border:1px solid var(--line);background:var(--card);text-decoration:none}.card b{font-size:1.25rem}.card span{color:var(--muted)}.notice{margin-top:48px;padding:25px;border-left:4px solid var(--gold);background:#eee7d8}.page-head{margin-bottom:36px}.toolbar{position:sticky;top:58px;z-index:4;padding:14px 0;background:var(--paper)}input[type=search]{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:2px;background:var(--card);font:16px ui-sans-serif,system-ui}.filters{display:flex;gap:8px;overflow:auto;padding-top:10px}.filters button{white-space:nowrap;border:1px solid var(--line);background:transparent;padding:7px 11px;color:var(--muted)}.filters button.selected{background:var(--green);color:white;border-color:var(--green)}.unit-list,.source-list{display:grid;gap:14px}.unit,.source{padding:24px;border:1px solid var(--line);background:var(--card)}.unit h2,.source h2{margin:.6em 0;font-size:1.2rem}.unit-meta{display:flex;gap:10px;align-items:center;color:var(--muted);font:12px ui-sans-serif,system-ui}.unit-meta code{color:var(--gold)}.boundary{color:var(--muted)}.source>div:first-child,.source-links{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.source time,.badge{font:12px ui-sans-serif,system-ui;color:var(--muted)}.badge{border:1px solid var(--line);padding:2px 6px}.source p{color:var(--muted)}.source-links{font:14px ui-sans-serif,system-ui}.hidden{display:none}.prose{max-width:820px;margin:auto;background:var(--card);padding:clamp(24px,6vw,72px);border:1px solid var(--line)}.prose h1{font-size:2.6rem;line-height:1.15}.prose h2{margin-top:2.4em;border-top:1px solid var(--line);padding-top:1em}.prose h3{margin-top:2em}.prose blockquote{margin:1.5em 0;padding:12px 20px;border-left:3px solid var(--gold);color:var(--muted);background:var(--paper)}code{font-family:ui-monospace,SFMono-Regular,monospace}footer{padding:28px;text-align:center;border-top:1px solid var(--line);color:var(--muted);font:12px ui-sans-serif,system-ui}@media(max-width:720px){header{align-items:flex-start;gap:12px}.brand{font-size:14px}nav{gap:10px;overflow:auto}nav a{font-size:12px}.stats{grid-template-columns:repeat(2,1fr)}.cards{grid-template-columns:1fr}main{padding:32px 16px 70px}.prose{padding:22px}.prose h1{font-size:2rem}}