:root{--bg:#fff;--fg:#1a1a1a;--muted:#6b6b6b;--line:#e6e6e6;--soft:#f6f6f4;--accent:#2563eb;--info:#eef4ff}
@media (prefers-color-scheme:dark){:root{--bg:#141414;--fg:#ececec;--muted:#9a9a9a;--line:#2c2c2c;--soft:#1e1e1e;--accent:#7aa7ff;--info:#1a2333}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-text-size-adjust:100%}
.wrap{max-width:760px;margin:0 auto;padding:28px 18px 64px}
h1{font-size:1.7rem;line-height:1.2;margin:0 0 8px}.summary{color:var(--muted);margin:0 0 20px}
h2{font-size:1.25rem;margin:0 0 12px}h3{font-size:1.02rem;margin:16px 0 8px;color:var(--muted)}
section{margin:0 0 34px;scroll-margin-top:12px}section.sub{margin:0 0 8px}
#toc{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 30px}#toc a{font-size:.85rem;padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--fg);text-decoration:none}
.seg{display:flex;background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:3px;gap:3px}
.seg button{flex:1;border:0;background:transparent;color:var(--fg);font:inherit;font-size:.92rem;padding:9px 8px;border-radius:8px;cursor:pointer}
.seg button[aria-selected=true]{background:var(--bg);box-shadow:0 1px 3px rgba(0,0,0,.12);font-weight:600}
.statement{font-size:1.08rem;font-weight:500;margin:16px 0}
.callout{background:var(--soft);border-left:3px solid var(--muted);padding:10px 14px;border-radius:6px;margin:14px 0}.callout.info{background:var(--info);border-color:var(--accent)}
.props{display:grid;grid-template-columns:150px 1fr;gap:8px 16px;margin:0}.props dt{color:var(--muted);font-size:.92rem}.props dd{margin:0}
.rows{border-top:1px solid var(--line)}.row{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.lead{flex:0 0 auto;min-width:22px;color:var(--muted);font-variant-numeric:tabular-nums;font-size:.9rem;padding-top:1px}
.rbody{flex:1;min-width:0}.rtitle{font-weight:600}.rdetail{color:var(--fg);opacity:.85;margin-top:3px;font-size:.95rem}
.meta{flex:0 0 auto;max-width:30%;text-align:right;color:var(--muted);font-size:.82rem}
.tablewrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:.95rem}th,td{text-align:left;vertical-align:top;padding:8px 10px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:600;font-size:.85rem}td:first-child{width:38%;font-weight:500}
ol{margin:0;padding-left:22px}li{margin:4px 0}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:10px}.card{display:flex;flex-direction:column;gap:2px;padding:12px;border:1px solid var(--line);border-radius:10px;color:var(--fg);text-decoration:none}.card:hover{border-color:var(--accent)}
.ctitle{font-weight:500;font-size:.93rem}.csite{color:var(--muted);font-size:.8rem}
@media (max-width:600px){.wrap{padding:20px 14px 48px}h1{font-size:1.4rem}.props{grid-template-columns:1fr;gap:2px}.props dd{margin-bottom:10px}.cards{grid-template-columns:1fr}.row{flex-wrap:wrap}.meta{max-width:none;text-align:left;flex-basis:100%;padding-left:34px}td:first-child{width:auto}.seg button{font-size:.85rem}}