:root{--ink:#1b2433;--muted:#5a6475;--navy:#12355b;--blue:#1f5fa8;--line:#e2e6ee;--bg:#f6f8fb;--ok:#1d7a46;--okbg:#e6f4ec;--nr:#9a4b00;--nrbg:#fff1df}
*{box-sizing:border-box}body{font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;margin:0;color:var(--ink);background:#fff}
.wrap{max-width:1000px;margin:0 auto;padding:0 20px}a{color:var(--blue)}a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #f2b705;outline-offset:2px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:9}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.top{background:var(--navy);color:#fff}.top .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;padding-top:12px;padding-bottom:12px}
.top a{color:#fff;text-decoration:none}.top nav a{margin-left:18px;font-weight:500}.top nav a:hover{text-decoration:underline}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.15em}.logo svg{width:24px;height:24px}.logo span{font-weight:400;opacity:.8}
.disc{background:#fff6dc;border-bottom:1px solid #f0d78a;padding:8px 20px;font-size:.9em;text-align:center}
main{padding-top:8px;padding-bottom:24px}h1{font-size:2em;line-height:1.2;margin:.4em 0 .3em;color:var(--navy)}h2{font-size:1.35em;margin:1.6em 0 .6em;color:var(--navy)}h3{display:flex;align-items:center;gap:8px;margin:0 0 .4em;font-size:1.1em}
.crumbs ol{list-style:none;padding:0;margin:12px 0 0;display:flex;flex-wrap:wrap;font-size:.9em;color:var(--muted)}.crumbs li+li:before{content:"›";margin:0 8px}
.ic{width:20px;height:20px;flex:none;color:var(--blue);vertical-align:-4px;margin-right:8px}.ic.lg{width:24px;height:24px;margin:0}
.meta{color:var(--muted);display:flex;align-items:center;gap:10px;margin:0}.bar{display:inline-block;width:120px;height:8px;background:var(--line);border-radius:4px;overflow:hidden}.bar i{display:block;height:100%;background:var(--ok)}
.callout{background:var(--bg);border-left:4px solid var(--blue);padding:10px 14px;border-radius:4px}
.quick{border:1px solid var(--line);border-radius:10px;padding:4px 16px 8px;margin-top:16px;box-shadow:0 1px 3px rgba(0,0,0,.04)}.quick h2{margin:.6em 0}
table{width:100%;border-collapse:collapse}th,td{border-bottom:1px solid var(--line);padding:10px 8px;vertical-align:top;text-align:left}thead th{font-size:.8em;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}tr:last-child>*{border-bottom:0}.qt th[scope=row]{width:40%;font-weight:600}.qt th a{text-decoration:none;display:flex;align-items:flex-start}.qt th a:hover{text-decoration:underline}
.topic{border-top:1px solid var(--line);padding:16px 0;scroll-margin-top:12px}.topic p{margin:.3em 0}.src{font-size:.88em;color:var(--muted)}.top-link{font-size:.85em}
.badge{display:inline-block;font-size:.78em;font-weight:600;padding:1px 8px;border-radius:999px}.ok{background:var(--okbg);color:var(--ok)}.nr{background:var(--nrbg);color:var(--nr)}
.hero{background:var(--bg);border-radius:12px;padding:8px 24px 20px;margin-top:16px}.lead{font-size:1.1em;color:var(--muted);max-width:720px}
.search{position:relative;margin:12px 0}.search .ic{position:absolute;left:14px;top:15px;color:var(--muted)}#q{width:100%;padding:14px 110px 14px 44px;font-size:1.1em;border:2px solid #c5ccd8;border-radius:10px;background:#fff}#q:focus{border-color:var(--blue)}.qc{position:absolute;right:14px;top:16px;font-size:.85em;color:var(--muted)}
.hero .grid{max-height:260px;overflow:auto;background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 12px}
.grid{columns:3 220px;list-style:none;padding:0;margin:0}.grid li{padding:4px 0;break-inside:avoid}.grid a{font-weight:500}
.jumps{display:flex;gap:16px;flex-wrap:wrap;margin-top:12px}.jump{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:8px 0}.jump label{font-weight:600}select{padding:8px;font-size:1em;border:1px solid #c5ccd8;border-radius:8px;max-width:100%}
.map{margin:0}.map svg{width:100%;height:auto;max-width:720px;display:block}.tile rect{fill:#dbe4f0;stroke:#fff}.tile.has rect{fill:var(--blue)}.tile text{font:600 15px system-ui,sans-serif;fill:var(--navy);pointer-events:none}.tile.has text{fill:#fff}a:hover .tile rect,a:focus .tile rect{fill:#f2b705}a:hover .tile text{fill:var(--ink)}
figcaption{font-size:.9em;color:var(--muted);display:flex;align-items:center;gap:6px;flex-wrap:wrap}.key{display:inline-block;width:14px;height:14px;border-radius:3px;background:#dbe4f0;margin-left:10px}.key.has{background:var(--blue);margin-left:0}
.topics{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}.topics li{display:flex;align-items:center;background:var(--bg);padding:10px 12px;border-radius:8px}
.chips{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}.chips a{display:inline-block;padding:4px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none}
footer{background:var(--bg);border-top:1px solid var(--line);padding:12px 0 24px;margin-top:32px;font-size:.9em;color:var(--muted)}
@media(max-width:640px){h1{font-size:1.55em}.top nav a{margin:0 14px 0 0}.hero{padding:4px 14px 14px}.qt th[scope=row]{width:auto}.qt,.qt tbody,.qt tr,.qt th,.qt td{display:block}.qt thead{display:none}.qt th{border:0;padding-bottom:0}.disc{text-align:left}#q{padding-right:14px}.qc{position:static;display:block}}

.news{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin:28px 0}.news h2{margin-top:0}.nlf{display:flex;gap:8px;flex-wrap:wrap}.nlf input{flex:1;min-width:200px;padding:10px;border:1px solid var(--line);border-radius:8px}.nlf button{padding:10px 18px;border-radius:8px;border:0;background:var(--blue);color:#fff;opacity:.6}
.sponsor{border:1px dashed #9aa9bd;border-radius:10px;padding:12px 16px;margin:20px 0;position:relative;background:#fff}.sponsor .slab{display:inline-block;font-size:.72em;text-transform:uppercase;letter-spacing:.08em;background:#eef2f7;color:#4a5a70;padding:2px 8px;border-radius:4px;margin-right:8px}.sponsor p{margin:6px 0}
.faq{border:1px solid var(--line);border-radius:8px;padding:10px 14px;margin:8px 0}.faq summary{cursor:pointer;font-weight:600}