:root{--bg:#f6f8fb;--card:#fff;--line:#d9e1ec;--ink:#12233b;--muted:#566a84;--blue:#14509c;--sky:#e3edf8;--signal:#c9481a;--sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,Menlo,monospace}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 var(--sans)}
h1,h2,h3{font-weight:700;line-height:1.14;margin:0;letter-spacing:-.018em}h1{font-size:clamp(2.2rem,5vw,3.9rem)}h2{font-size:clamp(1.4rem,2.5vw,1.9rem)}
p{margin:0}a{color:var(--blue)}a:hover{color:var(--signal)}img,svg{max-width:100%;display:block}code,pre,.mono{font-family:var(--mono)}
.wrap{max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px}.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;z-index:30}.skip:focus{left:8px}:focus-visible{outline:3px solid var(--signal);outline-offset:2px}
.eyebrow{font:600 .8rem var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--signal);margin-bottom:12px}.eyebrow a{color:inherit}.lead{font-size:1.14rem;color:var(--muted);max-width:60ch;margin-top:16px}
.top{background:#fff;border-bottom:1px solid var(--line)}.top-in{display:flex;align-items:center;justify-content:space-between;gap:10px 28px;min-height:66px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800;font-size:1.22rem;letter-spacing:-.02em}
.top nav{display:flex;gap:4px 22px;flex-wrap:wrap}.top nav a{color:var(--muted);text-decoration:none;font-size:.95rem;font-weight:500;padding:4px 0;border-bottom:2px solid transparent}.top nav a:hover{color:var(--ink)}.top nav a[aria-current]{color:var(--ink);border-color:var(--signal)}
.hero{position:relative;overflow:hidden;background:var(--sky)}.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 40%}.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(246,248,251,.94) 0,rgba(246,248,251,.72) 46%,rgba(246,248,251,0) 82%)}.hero-in{position:relative;z-index:1;padding-top:80px;padding-bottom:128px}.hero h1{max-width:13em}
.calc{position:relative;z-index:2;margin-top:-72px;margin-bottom:40px}.calc-form{display:flex;gap:12px;align-items:end;background:#fff;border:1px solid var(--line);border-radius:10px 10px 0 0;padding:20px}.calc-form label{flex:1;min-width:0}.calc-form span{display:block;font-size:.84rem;font-weight:600;color:var(--muted);margin-bottom:6px}select,input[type=search]{font:600 1rem var(--sans);color:var(--ink);background:var(--bg);border:1px solid #b9c6d8;border-radius:6px;padding:10px 12px;width:100%}
.swap{font:700 1.1rem var(--sans);width:44px;height:44px;flex:none;border:1px solid #b9c6d8;background:#fff;color:var(--blue);border-radius:6px;cursor:pointer}.swap:hover{border-color:var(--signal);color:var(--signal)}
.calc-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);background:#fff;border:1px solid var(--line);border-top:0}.map-box{margin:0;background:#eaf1f9;min-width:0}#map{width:100%;height:auto}
.facts{margin:0;padding:8px 22px;align-self:center}.facts div{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--line)}.facts div:last-child{border:0}.facts dt{color:var(--muted);font-size:.93rem}.facts dd{margin:0;font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.fleet{background:#fff;border:1px solid var(--line);border-top:0;border-radius:0 0 10px 10px;padding:20px 22px}.fleet h2{font-size:1rem;margin-bottom:12px}.fleet-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.fleet-list li{background:var(--sky);border-radius:6px;padding:5px 11px;font-size:.92rem}.fleet-list b{font-weight:600}
.block{padding-top:32px;padding-bottom:28px}.pop{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.pop-b{font:600 .92rem var(--mono);color:var(--blue);background:#fff;border:1px solid #b9c6d8;border-radius:6px;padding:9px 14px;cursor:pointer}.pop-b:hover{border-color:var(--signal);color:var(--signal)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding-top:40px;padding-bottom:48px}.split p{color:var(--muted);margin-top:14px}.ph{width:100%;height:auto;border-radius:10px}.more{font-weight:600}
.page-head{padding-top:56px;padding-bottom:30px}.search{display:block;max-width:420px;margin-top:22px}.search span{display:block;font-size:.84rem;font-weight:600;color:var(--muted);margin-bottom:6px}
.tblock{padding-bottom:40px}.tscroll{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:10px}.tbl{width:100%;border-collapse:collapse;font-size:.95rem}.tbl th,.tbl td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}.tbl tbody tr:last-child td{border-bottom:0}.tbl thead th{color:var(--muted);font-size:.8rem;font-weight:600;background:#fafbfd}.tbl tr[hidden]{display:none}.tbl .num{text-align:right;font-variant-numeric:tabular-nums}.tbl .code{font-weight:700}.m-empty{padding:18px 4px;color:var(--muted)}
.g-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;padding-bottom:72px}.g-card .meta{margin-top:12px}.g-card h2{font-size:1.22rem;margin-top:4px}.g-card h2 a{color:var(--ink);text-decoration:none}.g-card h2 a:hover{color:var(--signal)}.g-card>p:last-child{color:var(--muted);margin-top:8px;font-size:.97rem}.meta{color:var(--muted);font-size:.9rem}
.art{max-width:808px;padding-top:52px;padding-bottom:72px}.art h1{font-size:clamp(1.9rem,4.2vw,2.9rem)}.art .meta{margin-top:12px}.art figure{margin:26px 0}.prose h2{margin:34px 0 8px;font-size:1.4rem}.prose p{margin-top:14px}.prose ul{padding-left:22px}.prose li{margin-top:6px}
.api-doc{padding-bottom:72px;display:grid;gap:14px}.api-note,.ep{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;min-width:0}.api-note h2{font-size:1.15rem;margin-bottom:6px}.api-note p,.ep p{color:var(--muted)}.ep-head{display:flex;align-items:center;gap:10px;margin-bottom:6px;flex-wrap:wrap}.verb{font:700 .72rem var(--mono);color:#fff;background:var(--blue);border-radius:3px;padding:2px 7px}.ep-head code{font-weight:600;overflow-wrap:anywhere}.params{font-size:.92rem;margin-top:6px}.params code{color:var(--ink);background:var(--sky);padding:1px 5px;border-radius:3px;font-size:.86rem}
.try{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-top:12px;flex-wrap:wrap}.ex{font-size:.88rem;color:var(--blue);overflow-wrap:anywhere;min-width:0}.btn-s{font:600 .86rem var(--sans);background:#fff;color:var(--ink);border:1px solid #b9c6d8;border-radius:6px;padding:6px 14px;cursor:pointer}.btn-s:hover{border-color:var(--signal);color:var(--signal)}.out{background:#10203a;color:#d6e4f7;border-radius:6px;padding:14px;margin:12px 0 0;font-size:.82rem;line-height:1.5;overflow:auto;max-height:380px;white-space:pre-wrap;overflow-wrap:anywhere}
.nf{padding-top:90px;padding-bottom:120px}.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-block;background:var(--blue);color:#fff;font-weight:700;text-decoration:none;border:2px solid var(--blue);border-radius:6px;padding:10px 22px}.btn:hover{background:var(--ink);border-color:var(--ink);color:#fff}.btn.ghost{background:none;color:var(--ink);border-color:#b9c6d8}.btn.ghost:hover{background:none;color:var(--ink);border-color:var(--ink)}
.foot{background:#fff;border-top:1px solid var(--line);margin-top:30px;color:var(--muted);font-size:.93rem}.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;padding-top:40px;padding-bottom:26px}.foot-name{font-weight:800;color:var(--ink);font-size:1.15rem;margin-bottom:8px}.foot-h{font:600 .76rem var(--mono);text-transform:uppercase;color:var(--signal);margin-bottom:10px}.foot-in a{color:var(--muted)}.foot-in a:hover{color:var(--ink)}.foot-in p+p{margin-top:5px}.foot-end{padding-top:14px;padding-bottom:24px;font-size:.84rem;border-top:1px solid var(--line)}
@media (max-width:980px){.calc-grid,.split{grid-template-columns:1fr}.split{gap:26px}.split.rev>div:first-child{order:2}.g-grid{grid-template-columns:1fr}.hero-in{padding-top:56px;padding-bottom:108px}.foot-in{grid-template-columns:1fr 1fr}.foot-in>div:first-child{grid-column:1/3}}
@media (max-width:640px){body{font-size:16px}.wrap{padding-left:16px;padding-right:16px}.hero::after{background:rgba(246,248,251,.78)}.calc-form{flex-wrap:wrap}.calc-form label{flex:1 1 100%}.swap{width:100%}.facts{padding:8px 16px}.fleet{padding:16px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}