:root{--bg:#061421;--panel:#0b1e2d;--text:#f4f7fb;--muted:#a8b8ca;--cyan:#35d3ff;--green:#55e5a6;--line:#1b4056}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 20% 0,#0c2438,#061421 45%,#04101a);color:var(--text);font-family:Arial,sans-serif;line-height:1.65}
a{color:inherit}.wrap{width:min(1120px,calc(100% - 36px));margin:auto}.top{position:sticky;top:0;background:rgba(4,16,26,.94);border-bottom:1px solid rgba(53,211,255,.14);z-index:10}
.top .wrap{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{text-decoration:none;font-weight:900;letter-spacing:.08em;display:flex;align-items:center;gap:10px}.logo{display:grid;place-items:center;width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,var(--green),var(--cyan));color:#03111b;font-size:13px}
nav{display:flex;gap:20px;align-items:center}nav a{text-decoration:none;color:var(--muted);font-size:14px}.langs{display:flex;gap:6px}.langs a{padding:4px 8px;border:1px solid var(--line);border-radius:6px;text-decoration:none}.langs .on{color:var(--green)}
.hero{padding:88px 0 54px}.kicker{font:700 13px monospace;color:var(--cyan);letter-spacing:.16em;text-transform:uppercase}.hero h1{font-size:clamp(40px,6vw,70px);line-height:1.04;letter-spacing:-.04em;max-width:940px;margin:17px 0 23px}.lead{max-width:820px;color:#bdcad9;font-size:20px}.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{padding:13px 18px;border-radius:9px;text-decoration:none;font-weight:800;border:1px solid var(--line)}.primary{background:var(--green);color:#03111b;border-color:var(--green)}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:34px}.flow div{background:rgba(9,30,45,.76);border:1px solid var(--line);padding:15px;border-radius:11px}.flow strong{color:var(--cyan);display:block}
.content{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding-bottom:60px}.card{border:1px solid var(--line);border-radius:15px;background:linear-gradient(180deg,rgba(13,39,57,.92),rgba(7,24,37,.92));padding:27px}.card h2{margin:0 0 12px;font-size:27px}.card p{margin:0;color:#b7c5d6}.faq{padding:18px 0 60px}.faq h2,.related h2{font-size:34px}.faq details{border-top:1px solid var(--line);padding:17px 0}.faq summary{font-weight:800;cursor:pointer}.faq p{color:#b7c5d6;max-width:850px}
.related{border-top:1px solid rgba(53,211,255,.14);padding:38px 0}.links{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.links a{text-decoration:none;color:#b5c4d5;padding:8px 0}.notice{border:1px solid rgba(85,229,166,.28);background:rgba(85,229,166,.06);border-radius:11px;padding:17px;color:#bfd6c9;margin:0 0 44px}.footer{border-top:1px solid rgba(53,211,255,.14);padding:28px 0 46px;color:#7f94aa;font-size:13px}
@media(max-width:760px){nav>a{display:none}.content{grid-template-columns:1fr}.flow{grid-template-columns:1fr 1fr}.links{grid-template-columns:1fr}}