:root{--bg:#fbfbfa;--panel:#ffffff;--border:#e6e4e0;--text:#1f1e1c;--muted:#78736c;--accent:#c0392b;--accent-soft:#fdf1ef;--ok:#2f7d4f;--ok-soft:#eef6f0;--warn:#a8721b;--curve-ghost:#b9c3d1;--curve-median:#2b4c7e;--target:#2f7d4f}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:#2b4c7e}.wrap{max-width:1180px;margin:0 auto;padding:34px 22px 80px}header.top{margin-bottom:22px}header.top h1{font-size:23px;margin:0 0 4px;letter-spacing:-.3px}header.top .sub{margin:0;color:var(--muted);font-size:13.5px}header.top .meta{margin-top:9px;font-size:12px;color:var(--muted)}.tabbar{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}.tabbar button{font:inherit;font-size:13px;padding:7px 15px;border-radius:7px;border:1px solid var(--border);background:#fff;color:var(--text);cursor:pointer}.tabbar button:hover{border-color:#c9c5be}.tabbar button.active{background:var(--text);color:#fff;border-color:var(--text)}.layout{display:grid;grid-template-columns:300px 1fr;grid-gap:20px;gap:20px;align-items:start}@media (max-width:940px){.layout{grid-template-columns:1fr}}.panel{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:17px;margin-bottom:17px}.panel h2{font-size:12px;letter-spacing:.04em;color:var(--muted);margin:0 0 13px;font-weight:600}.panel h3{font-size:13.5px;margin:16px 0 7px}.panel h3:first-child{margin-top:0}.panel p{margin:0 0 10px}.panel p:last-child{margin-bottom:0}.btn{font:inherit;font-size:13px;padding:8px 15px;border-radius:7px;border:1px solid var(--border);background:#fff;color:var(--text);cursor:pointer}.btn:hover{border-color:#c9c5be}.btn.primary{background:var(--text);color:#fff;border-color:var(--text)}.btn.primary:hover{background:#33312e}.btn.seg{padding:6px 12px}.btn.seg.on{background:var(--text);color:#fff;border-color:var(--text)}table{width:100%;border-collapse:collapse;font-size:13px}td,th{text-align:left;padding:7px 8px;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--muted);font-size:12px}td.num,th.num{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}tr.best td{font-weight:600}tr.best td:first-child:before{content:"▸ ";color:var(--ok)}.small{font-size:12.5px}.small,.tiny{color:var(--muted)}.tiny{font-size:11.5px}.formula,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.formula{background:#faf9f7;border:1px solid var(--border);border-radius:7px;padding:9px 12px;color:#3d3934;overflow-x:auto;white-space:pre}ul.tight{margin:7px 0 0;padding-left:18px}ul.tight li{margin-bottom:4px;font-size:13px}.badge-err{background:var(--accent-soft);border:1px solid #f0d9d4;color:var(--accent);border-radius:8px;padding:10px 13px;font-size:13px}.note{font-size:12px;color:var(--muted);background:#faf9f7;border-radius:7px;padding:10px 12px;margin-top:11px}.note.warn{background:#fdf7ec;color:#7a5514}.row{display:flex;gap:9px;align-items:center}.row.between{justify-content:space-between}.row.wrap{flex-wrap:wrap}.row.tight{gap:6px}footer{margin-top:42px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--border);padding-top:15px}footer p{margin:0 0 5px}