:root{color-scheme:light;--ink:#262821;--muted:#686b5f;--paper:#faf8f2;--line:#dddcd0;--accent:#79603c}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.85 system-ui,-apple-system,"PingFang SC",sans-serif}a{color:inherit;text-underline-offset:.25em}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #ac8546;outline-offset:4px}.masthead,main,footer{max-width:1100px;margin:auto;padding:24px}.masthead{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}.masthead>a{font-weight:700;text-decoration:none}.masthead span{font-size:11px;letter-spacing:.12em;margin-left:12px;color:var(--muted)}nav{display:flex;gap:22px;font-size:14px}.intro{padding:65px 0 40px;max-width:840px}.eyebrow{font-size:12px;letter-spacing:.13em;color:var(--accent)}h1{font-family:"Songti SC",serif;font-weight:500;font-size:clamp(32px,4.3vw,50px);line-height:1.5;letter-spacing:-.03em;margin:16px 0 24px}.lead{max-width:760px;font-size:18px;color:#4b4f43}h2{font-size:22px;font-weight:600;line-height:1.6}.muted{color:var(--muted);font-size:14px}.methods{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;padding:30px 0 42px;border-block:1px solid var(--line)}.methods article>span{font-size:11px;letter-spacing:.08em;color:var(--accent)}.methods h2{margin:8px 0}.methods p{font-size:15px;margin:0;color:#555a4e}.catalogue{padding:42px 0}.filters{display:flex;gap:18px}label{display:flex;flex-direction:column;gap:6px;font-size:13px}.query{flex:1}select,input{font:inherit;font-size:16px;border:1px solid #c8cabb;border-radius:5px;background:#fffefa;padding:12px;color:var(--ink);width:100%;min-height:48px}select{min-width:210px}.rule{padding:24px 0;border-bottom:1px solid var(--line);scroll-margin-top:20px}.rule summary{cursor:pointer;font-size:20px;font-weight:600;line-height:1.6}.rule .source{font-size:12px;color:var(--accent);margin:5px 0 14px}.rule p{max-width:850px;margin:12px 0}.rule strong{font-size:14px}.rule blockquote{margin:20px 0;padding:12px 20px;border-left:2px solid #ab9777;background:#f0ede4;font-family:"Songti SC",serif}.rule small{color:var(--muted)}button{background:#333d2c;color:white;border:0;border-radius:5px;font:inherit;padding:10px 25px;margin-top:24px;cursor:pointer}.edition{border-top:1px solid var(--line);padding:25px 0;color:var(--muted);font-size:14px}.edition h2{font-size:18px;color:var(--ink)}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}@media(max-width:650px){.masthead,main,footer{padding:18px}.masthead span{display:none}nav{gap:14px}.intro{padding:34px 0}.methods{grid-template-columns:1fr;gap:24px}.filters{flex-direction:column}.lead{font-size:16px}h1{font-size:33px}footer{gap:20px}.rule summary{font-size:18px}}