:root{--bg:#f4f7fb;--bg-2:#e8eef6;--card:#ffffff;--ink:#0f1e3d;--ink-2:#2c3d5f;--muted:#5d6b85;--cyan:#0aa5c9;--cyan-l:#22c3e6;--green:#1fa463;--led:#36d07a;--line:#d3dceb;--sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,"SF Mono","Cascadia Mono",Menlo,Consolas,monospace;--wrap:1160px;--r:12px}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;color:var(--ink);font:17px/1.7 var(--sans);background-color:var(--bg);background-image:linear-gradient(rgba(15,30,61,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(15,30,61,.035) 1px,transparent 1px);background-size:28px 28px}
img,svg{max-width:100%}
a{color:#0b6f93;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--green)}
:focus-visible{outline:3px solid var(--cyan-l);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:9;background:var(--ink);color:#fff;padding:8px 14px}
.top{background:var(--ink);color:#dce6f5;border-bottom:3px solid var(--cyan)}
.top-in{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none}
.brand svg{width:44px;height:44px;flex:none}
.brand-name{font:800 1.4rem/1 var(--sans);letter-spacing:-.01em}
.brand-name b{color:var(--cyan-l);font-weight:800}
.brand-tag{display:block;font:500 .72rem/1.3 var(--mono);color:#9fb3d1;margin-top:4px}
.nav ul{list-style:none;margin:0;padding:0}
.nav>ul{display:flex;flex-wrap:wrap;gap:4px}
.nav li{position:relative}
.nav a,.nav .nh{display:block;padding:7px 11px;border-radius:8px;color:#dce6f5;text-decoration:none;font:600 .88rem/1.2 var(--sans)}
.nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.nav li.on>a{background:var(--cyan);color:#fff}
.nav .sub{display:none;position:absolute;top:100%;left:0;min-width:220px;background:var(--ink);border:1px solid #23365e;border-radius:10px;padding:6px;z-index:5}
.nav li:hover>.sub,.nav li:focus-within>.sub{display:block}
h1,h2,h3,h4{font-family:var(--sans);font-weight:800;line-height:1.2;letter-spacing:-.015em;color:var(--ink);margin:1.5em 0 .5em}
.display{font-size:clamp(2rem,4.2vw,3rem);margin:.2em 0 .3em}
.kicker{margin:0;font:600 .76rem/1.3 var(--mono);color:var(--green)}
.kicker::before{content:"● ";color:var(--led)}
.lead{font-size:1.16rem;color:var(--ink-2);max-width:42em;margin:.3em 0 1em}
.crumbs{font:500 .78rem/1.4 var(--mono);color:var(--muted);margin:0 0 12px}.crumbs a{color:var(--muted)}
.btn{display:inline-block;padding:11px 20px;background:var(--ink);color:#fff;border-radius:10px;font:700 .88rem/1.2 var(--sans);text-decoration:none;border:2px solid var(--ink)}
.btn:hover{background:var(--cyan);border-color:var(--cyan);color:#fff}
.btn-ghost{background:transparent;color:var(--ink)}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.ico{width:100%;height:auto}
.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:44px;align-items:center;padding:48px 0 30px}
.hero-art{position:relative;aspect-ratio:1;max-width:420px;justify-self:center;width:100%}
.hero-art .ring{width:100%;height:100%}
.section{padding:32px 0 6px}
.stitle{display:flex;align-items:center;gap:12px;font:700 .82rem/1.2 var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--ink-2);margin:0 0 20px}
.stitle::after{content:"";flex:1;border-top:2px dashed var(--line)}
.topics{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.topic{display:flex;flex-direction:column;gap:6px;padding:20px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);color:var(--ink);text-decoration:none;position:relative;transition:border-color .15s,box-shadow .15s}
.topic:hover{border-color:var(--cyan);box-shadow:0 10px 26px -18px rgba(10,80,140,.6);color:var(--ink)}
.topic .ti{width:46px;height:46px;border-radius:12px;background:var(--bg-2);color:var(--ink);padding:9px;margin-bottom:4px}
.topic b{font:800 1.08rem/1.25 var(--sans)}
.topic span{font-size:.9rem;color:var(--muted)}
.topic::after{content:"";position:absolute;top:18px;right:18px;width:9px;height:9px;border-radius:50%;background:var(--led);box-shadow:0 0 0 3px rgba(54,208,122,.18)}
.prose{max-width:44rem;font-size:1.05rem}
.prose h2{font-size:1.55rem;padding-top:.4em}
.prose h3{font-size:1.18rem;color:var(--ink-2)}
.prose p,.prose ul,.prose ol{margin:0 0 1em}
.prose ul,.prose ol{padding-left:1.35em}
.prose li{margin:.3em 0}
.prose li::marker{color:var(--cyan)}
.prose code{font-family:var(--mono);font-size:.88em;background:var(--bg-2);padding:2px 6px;border-radius:5px}
.prose pre{background:var(--ink);color:#dce6f5;padding:14px 16px;border-radius:10px;overflow-x:auto;font:.88rem/1.5 var(--mono)}
.prose pre code{background:none;padding:0;color:inherit}
.prose blockquote{margin:1.5em 0;padding:14px 18px;background:#e9f8f0;border:1px solid #bfe9d2;border-left:5px solid var(--green);border-radius:10px}
.prose table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:.94rem;background:var(--card);border:1px solid var(--line);border-radius:10px;display:block;overflow-x:auto}
.prose th,.prose td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.prose th{font:700 .76rem/1.2 var(--mono);text-transform:uppercase;letter-spacing:.06em;background:var(--bg-2)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:var(--cyan);box-shadow:0 10px 26px -18px rgba(10,80,140,.6)}
.card a{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}
.card-top{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,var(--bg-2),var(--card))}
.card-top .ico{width:34px;color:var(--ink)}
.card-top .kicker{font-size:.72rem}
.card-body{padding:14px 18px 18px;flex:1;display:flex;flex-direction:column}
.card h3{font-size:1.12rem;margin:0 0 .4em}
.card p{font-size:.92rem;color:var(--muted);margin:0 0 12px;flex:1}
.card .more{font:600 .78rem/1 var(--mono);color:#0b6f93}
.doc{padding:34px 0 10px}
.doc-head{padding-bottom:22px;margin-bottom:28px;border-bottom:2px dashed var(--line)}
.doc-grid{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:44px;align-items:start}
.spec{position:sticky;top:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.spec-h{display:flex;align-items:center;gap:10px;padding:12px 16px;background:var(--ink);color:#dce6f5;font:600 .74rem/1.2 var(--mono);text-transform:uppercase;letter-spacing:.08em}
.spec-h i{width:8px;height:8px;border-radius:50%;background:var(--led);display:inline-block}
.spec-ico{padding:18px 40px;border-bottom:1px solid var(--line);color:var(--ink)}
.spec dl{margin:0;padding:12px 16px}
.spec dt{font:600 .7rem/1.2 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-top:10px}
.spec dt:first-child{margin-top:0}
.spec dd{margin:2px 0 0;font-weight:700}
.spec ul{list-style:none;margin:0;padding:10px 16px 14px;border-top:1px solid var(--line);font-size:.9rem}
.spec li{margin:4px 0}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:18px 0 0}
.chips a,.chips span{display:inline-block;padding:5px 12px;border:1px solid var(--line);border-radius:8px;background:var(--card);font:500 .8rem/1.3 var(--mono);color:var(--ink-2);text-decoration:none}
.chips a:hover,.chips a.on{background:var(--ink);border-color:var(--ink);color:#fff}
.list-head{padding:34px 0 24px;margin-bottom:26px;border-bottom:2px dashed var(--line)}
.pager{display:flex;justify-content:center;gap:16px;align-items:center;margin:34px 0;color:var(--muted)}
.empty{color:var(--muted);padding:30px 0}
.notfound{display:grid;grid-template-columns:1fr 1.3fr;gap:40px;align-items:center;padding:56px 0 20px}
.notfound .hero-art{max-width:280px}
.foot{margin-top:70px;background:var(--ink);color:#b9c7dd;border-top:3px solid var(--cyan)}
.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;padding-top:42px;padding-bottom:24px}
.foot .fb{display:block;font:800 1.3rem/1 var(--sans);color:#fff;margin-bottom:10px}
.foot .fb b{color:var(--cyan-l)}
.foot p{font-size:.92rem;max-width:34em}
.foot h4{font:700 .72rem/1.2 var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--led);margin:0 0 10px}
.foot ul{list-style:none;margin:0;padding:0;font-size:.9rem}.foot li{margin:5px 0}
.foot a{color:#e6eefb;text-decoration:none}.foot a:hover{color:var(--cyan-l);text-decoration:underline}
.foot-note{border-top:1px solid #23365e;padding-top:14px;padding-bottom:24px;font:500 .76rem/1.5 var(--mono);color:#8ea2c2}
.foot-note p{margin:0;max-width:none}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.ring .node{animation:pulse 3s ease-in-out infinite}
.ring .node:nth-of-type(2n){animation-delay:1s}.ring .node:nth-of-type(3n){animation-delay:2s}
@media(prefers-reduced-motion:reduce){.ring .node{animation:none}}
@media(max-width:900px){.hero,.doc-grid,.notfound{grid-template-columns:1fr}.hero-art{order:-1;max-width:260px}.spec{position:static}.foot-in{grid-template-columns:1fr 1fr}.foot-in>div:first-child{grid-column:1/-1}}
@media(max-width:560px){body{font-size:16px}.foot-in{grid-template-columns:1fr}.nav a{padding:6px 8px;font-size:.82rem}}
@media print{.nav,.foot,.spec{display:none}}