:root{
 --bg:#07111d;--panel:#0d1c2a;--panel2:#102435;--line:#1d3a4e;
 --text:#e9f2f7;--muted:#9db2c2;--accent:#23d3c3;--accent2:#52c7ee;
 --good:#7de2a8;--warn:#f7c96d;--radius:20px;--shadow:0 18px 45px rgba(0,0,0,.24)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#07111d 0,#091827 48%,#07111d 100%);color:var(--text);
font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.72}
a{color:var(--accent2)}
img{max-width:100%;height:auto}
.wrap{width:min(1160px,calc(100% - 36px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,17,29,.91);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.navbar{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-size:21px;font-weight:850;letter-spacing:-.03em}
.brand-dot{width:13px;height:13px;border-radius:4px;background:var(--accent);box-shadow:0 0 20px rgba(35,211,195,.65)}
.navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.navlinks a{text-decoration:none;color:var(--muted);font-size:14px;font-weight:650}
.navlinks a:hover,.navlinks a[aria-current="page"]{color:var(--text)}
.langs{display:flex;gap:7px}
.langs a{border:1px solid var(--line);padding:4px 8px;border-radius:9px;font-size:12px}
.menu-btn{display:none;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:8px 11px}
.hero{padding:76px 0 48px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;border:1px solid #205268;background:#0c2635;border-radius:999px;padding:7px 12px;color:#9be8ef;font-size:13px;font-weight:750}
h1{font-size:clamp(38px,6vw,68px);line-height:1.04;letter-spacing:-.055em;margin:20px 0 20px}
h2{font-size:clamp(27px,4vw,39px);line-height:1.13;letter-spacing:-.035em;margin:0 0 18px}
h3{font-size:20px;line-height:1.25;margin:0 0 10px}
.lead{font-size:19px;color:#b7c9d5;max-width:760px}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 19px;border-radius:13px;text-decoration:none;font-weight:800;border:1px solid var(--line)}
.btn-primary{background:var(--accent);color:#031212;border-color:var(--accent)}
.btn-secondary{background:#0c2130;color:var(--text)}
.hero-card,.card,.notice,.toc,.stat,.faq-item{background:rgba(13,28,42,.92);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:25px}
.metric{display:flex;justify-content:space-between;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}
.metric:last-child{border-bottom:0}
.metric span{color:var(--muted)}
.metric strong{color:var(--good)}
.section{padding:58px 0}
.section-soft{background:rgba(13,28,42,.38);border-top:1px solid rgba(29,58,78,.7);border-bottom:1px solid rgba(29,58,78,.7)}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{padding:24px}
.card p,.muted{color:var(--muted)}
.card-link{text-decoration:none;color:inherit;transition:.18s transform,.18s border-color}
.card-link:hover{transform:translateY(-3px);border-color:#2d6a7f}
.icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:#123448;color:#80edf1;font-weight:900;margin-bottom:16px}
.notice{padding:20px 22px;border-left:4px solid var(--accent);color:#cfe2eb}
.notice.warn{border-left-color:var(--warn)}
.prose{max-width:820px}
.prose p,.prose li{color:#bdd0dc}
.prose h2{margin-top:48px}
.prose h3{margin-top:30px}
.prose ul,.prose ol{padding-left:23px}
.toc{padding:20px 24px;margin:28px 0}
.toc a{text-decoration:none}
table{width:100%;border-collapse:separate;border-spacing:0;background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden}
th,td{text-align:left;padding:15px 17px;border-bottom:1px solid var(--line)}
th{background:#11283a;color:#dff8fa}
tr:last-child td{border-bottom:0}
.badge{display:inline-flex;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:800;background:#153547;color:#9dedf0}
.steps{counter-reset:step;display:grid;gap:16px}
.step{position:relative;padding:22px 22px 22px 75px;background:var(--panel);border:1px solid var(--line);border-radius:18px}
.step:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:21px;width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:#123c4b;color:#87f0ed;font-weight:900}
.media{margin:28px 0;background:#07101a;border:1px solid var(--line);border-radius:18px;padding:12px}
.media img{display:block;margin:auto;border-radius:11px}
.caption{text-align:center;color:var(--muted);font-size:13px;margin:8px 0 0}
.faq-list{display:grid;gap:14px}
.faq-item{padding:20px 22px}
.faq-item h3{font-size:18px}
.cta{padding:34px;border-radius:26px;background:linear-gradient(135deg,#0e3140,#102335);border:1px solid #26617a;display:flex;justify-content:space-between;gap:30px;align-items:center}
.footer{padding:38px 0 48px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:30px}
.footer a{text-decoration:none;color:var(--muted)}
.small{font-size:13px;color:var(--muted)}
.article-head{padding:62px 0 24px}
.article-head h1{font-size:clamp(36px,5vw,58px)}
.breadcrumbs{font-size:13px;color:var(--muted)}
.checks{list-style:none;padding:0!important}
.checks li{padding:7px 0 7px 28px;position:relative}
.checks li:before{content:"✓";position:absolute;left:0;color:var(--good);font-weight:900}
@media(max-width:900px){
 .hero-grid,.grid-3,.footer-grid{grid-template-columns:1fr}
 .grid-2{grid-template-columns:1fr}
 .navlinks{display:none;position:absolute;top:72px;left:0;right:0;padding:18px;background:#07111d;border-bottom:1px solid var(--line)}
 .navlinks.open{display:flex;flex-direction:column;align-items:flex-start}
 .menu-btn{display:block}
 .cta{align-items:flex-start;flex-direction:column}
}