:root{--bg:#0b1220;--panel:#121b2e;--ink:#eef2f8;--mute:#b6c2d6;--acc:#4da3ff;--warn:#ffcc4d;--red:#ff6b6b;--line:#24314d}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--acc)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--warn);outline-offset:2px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;color:#000;padding:8px;z-index:9}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.notice{background:var(--warn);color:#1a1300;font-weight:600;padding:10px 0;font-size:15px}
.notice a{color:#1a1300}
header.top{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(11,18,32,.95);z-index:5}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:10px;padding-bottom:10px}
.brand{font-weight:800;color:var(--ink);text-decoration:none}
nav ul{list-style:none;display:flex;gap:14px;margin:0;padding:0;flex-wrap:wrap;font-size:15px}
nav a{color:var(--mute);text-decoration:none}nav a:hover{color:var(--ink)}
@media(max-width:760px){nav ul li:not(.k){display:none}}
.hero{padding:56px 0 40px;background:radial-gradient(800px 400px at 20% 0,#173158,transparent)}
.tag{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:3px 12px;font-size:14px;color:var(--mute)}
h1{font-size:clamp(2rem,6vw,3.3rem);line-height:1.12;margin:16px 0}
h2{font-size:clamp(1.5rem,4vw,2.1rem);margin:0 0 12px}h3{margin:0 0 6px;font-size:1.1rem}
.lead{font-size:1.15rem;color:var(--mute);max-width:46em}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.btn{display:inline-block;padding:12px 20px;border-radius:10px;background:var(--acc);color:#04101f;font-weight:700;text-decoration:none;border:0;font-size:16px;cursor:pointer}
.btn.alt{background:transparent;color:var(--ink);border:1px solid var(--line)}
section{padding:48px 0;border-top:1px solid var(--line)}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}
.card p{margin:.3em 0;color:var(--mute)}
.prop{font-size:12px;font-weight:700;color:var(--warn);text-transform:uppercase;letter-spacing:.05em}
ol.steps{counter-reset:s;list-style:none;padding:0}ol.steps li{counter-increment:s;position:relative;padding:0 0 14px 48px}
ol.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:34px;height:34px;border-radius:50%;background:var(--acc);color:#04101f;font-weight:800;display:grid;place-items:center}
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:10px}
summary{cursor:pointer;font-weight:700}
.src li{margin-bottom:6px;color:var(--mute);font-size:15px}
form{display:grid;gap:12px;max-width:560px}
label{font-weight:600}input,textarea{width:100%;padding:11px;border-radius:8px;border:1px solid var(--line);background:#0e1626;color:var(--ink);font:inherit}
.chk{display:flex;gap:10px;align-items:flex-start;font-weight:400}.chk input{width:auto;margin-top:6px}
.small{font-size:14px;color:var(--mute)}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--mute);font-size:14px}
.doc{max-width:760px;padding:40px 20px}