:root{--bg:#0b1019;--bg2:#111827;--card:#151d2b;--line:#263247;--text:#e9eef6;--muted:#97a3b8;--acc:#3b82f6;--acc2:#12b5c9;--pos:#1cc480;--warn:#f5a623;--r:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:#7fb2ff}
.w{max-width:1160px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:9;background:rgba(11,16,25,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header .w{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);text-decoration:none;margin-right:auto}
.brand img{width:32px;height:32px}
nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:15px}nav a:hover{color:var(--text)}
@media(max-width:760px){nav a.opt{display:none}}
.hero{padding-top:70px;padding-bottom:40px;display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding-top:40px}}
@media(max-width:600px){h1{font-size:34px}h2{font-size:26px}}
h1{font-size:48px;line-height:1.1;margin:0 0 16px;letter-spacing:-.02em}
h1 span{background:linear-gradient(90deg,var(--acc),var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:19px;color:var(--muted);margin:0 0 24px}
.btn{display:inline-block;padding:13px 22px;border-radius:10px;background:var(--acc);color:#fff;text-decoration:none;font-weight:600;margin:0 10px 10px 0;border:1px solid var(--acc)}
.btn.alt{background:transparent;color:var(--text);border-color:var(--line)}
.btn:hover{filter:brightness(1.1)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{border:1px solid var(--line);border-radius:99px;padding:4px 12px;font-size:13px;color:var(--muted)}
.chip.g{border-color:rgba(28,196,128,.5);color:var(--pos)}
.video{position:relative;padding-top:56.25%;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#000;box-shadow:0 20px 60px rgba(0,0,0,.45)}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
section{padding:64px 0;border-top:1px solid var(--line)}
h2{font-size:32px;margin:0 0 8px;letter-spacing:-.01em}
.sub{color:var(--muted);margin:0 0 30px;font-size:17px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:900px){.grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card h3{margin:0 0 6px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:15px}
.feat{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:center;margin:48px 0}
.feat.rev{grid-template-columns:1.2fr 1fr}.feat.rev .txt{order:2}
@media(max-width:900px){.feat,.feat.rev{grid-template-columns:1fr}.feat.rev .txt{order:0}}
.feat img,.shot{width:100%;height:auto;border-radius:var(--r);border:1px solid var(--line);box-shadow:0 14px 40px rgba(0,0,0,.4)}
.feat h3{font-size:24px;margin:0 0 10px}.feat ul{padding-left:20px;color:var(--muted)}.feat li{margin:6px 0}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}
.steps .card:before{counter-increment:s;content:counter(s);display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--acc);color:#fff;font-weight:700;margin-bottom:10px}
.safe{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}@media(max-width:900px){.safe{grid-template-columns:1fr 1fr}}
.safe .card h3{color:var(--pos)}
.price{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}@media(max-width:800px){.price{grid-template-columns:1fr}}
.price .card{text-align:center}.price .amt{font-size:38px;font-weight:800;margin:6px 0}.price .card.hl{border-color:var(--acc)}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600}details p{color:var(--muted);margin:10px 0 0}
.dl{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}@media(max-width:900px){.dl{grid-template-columns:1fr}}
.dl .card h3{font-size:22px}.dl .meta{font-size:13px;color:var(--muted);margin:8px 0 14px}
code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px}
code{background:#1d2738;padding:2px 6px;border-radius:6px}
pre{background:#0e1522;border:1px solid var(--line);border-radius:10px;padding:14px;overflow-x:auto;white-space:pre-wrap;word-break:break-all}
.note{border-left:3px solid var(--warn);background:rgba(245,166,35,.07);padding:12px 16px;border-radius:0 10px 10px 0;color:var(--muted);margin:16px 0}
.doc h2{margin-top:40px}.doc h3{margin-top:26px}.doc li{margin:6px 0}.doc table{border-collapse:collapse;width:100%;font-size:15px}
.doc td,.doc th{border-bottom:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}.doc th{color:var(--muted);font-weight:500}
footer{border-top:1px solid var(--line);padding:30px 0 50px;color:var(--muted);font-size:14px}
footer a{color:var(--muted);margin-right:16px}
.small{font-size:13px;color:var(--muted)}