:root{--bg:#07121e;--bg2:#0b1a2a;--panel:#112236;--panel2:#16293f;--line:#223549;--text:#eaf1f8;--muted:#a9bbcd;--accent:#5ce8c8;--sky:#3b8bf0;--ink:#03211b;--radius:20px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(1200px 600px at 70% -10%,#133b6355,transparent),var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto}code{background:#0a1826;border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:.9em}
pre{background:#050b12;border:1px solid var(--line);border-radius:14px;padding:14px;overflow:auto}
.top{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px max(18px,calc((100% - 1120px)/2));background:#07121ecc;backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:20px}.brand:hover{text-decoration:none}.brand img{border-radius:50%}
.top nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.top nav a{color:var(--muted);font-weight:600}.top nav a.active,.top nav a:hover{color:var(--text);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--ink)!important;font-weight:700;border-radius:14px;padding:12px 20px;box-shadow:0 8px 24px #5ce8c833;transition:transform .1s,filter .15s}
.btn:hover{filter:brightness(1.07);text-decoration:none;transform:translateY(-1px)}.btn.small{padding:8px 14px;font-size:14px;box-shadow:none}
.btn.ghost{background:transparent;color:var(--accent)!important;border:1px solid #2f6e63;box-shadow:none}
main{max-width:1120px;margin:0 auto;padding:0 18px}
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:64px 0 40px}
.eyebrow{color:var(--accent);font-weight:700;letter-spacing:.02em;margin:0 0 10px}
.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.08;margin:0 0 18px;letter-spacing:-.02em}
.lead{color:var(--muted);font-size:18px}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 24px}.badges span{background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:14px}
.cta{display:flex;gap:12px;flex-wrap:wrap}.cta.center{justify-content:center;margin-top:24px}
.hero-art{position:relative;display:flex;justify-content:center;align-items:center;min-height:420px}
.hero-art img:first-child{width:66%;margin-right:30%;filter:drop-shadow(0 30px 60px #3b8bf055)}
.hero-art .phone{position:absolute;right:0;bottom:-10px;width:40%;border-radius:22px;border:6px solid #0f1f31;box-shadow:0 20px 50px #0009}
.section{padding:48px 0}.section h2{font-size:clamp(26px,3vw,36px);margin:0 0 6px}.sub{color:var(--muted);margin:0 0 24px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}.grid.two{grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr))}.doc>article,.doc>aside{min-width:0}
.card{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.feature .icon{font-size:28px}.feature h3{margin:8px 0 6px}.feature p{color:var(--muted);margin:0;font-size:15px}
.shots{display:flex;gap:16px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory}
.shots figure{margin:0;flex:0 0 220px;scroll-snap-align:start}.shots img{border-radius:18px;border:1px solid var(--line)}.shots figcaption{color:var(--muted);font-size:14px;text-align:center;margin-top:6px}
.steps{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}.step .num{color:var(--accent);font-weight:800;font-size:22px}.step h3{margin:6px 0}.step p{color:var(--muted);margin:0}
.specs{width:100%;border-collapse:collapse;background:var(--panel);border-radius:var(--radius);overflow:hidden}
.specs th,.specs td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}.specs th{color:var(--muted);font-weight:600;width:32%}
.specs.small th,.specs.small td{padding:8px 10px;font-size:14px}
.doc{display:grid;grid-template-columns:260px 1fr;gap:36px;padding:40px 18px}.doc.single{grid-template-columns:1fr;max-width:860px}.doc.single.wide{max-width:1120px}
.toc{position:sticky;top:84px;align-self:start;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.toc h3{margin:0 0 8px}.toc ol{margin:0;padding-left:18px}.toc li{margin:4px 0}.toc a{color:var(--muted)}.toc a:hover{color:var(--text)}
.doc h1{font-size:clamp(28px,4vw,42px);margin:0 0 6px}.muted{color:var(--muted)}
.doc-section{border-top:1px solid var(--line);padding:22px 0}.doc-section h2{margin:0 0 10px;font-size:22px;scroll-margin-top:90px}
.doc-section li{margin:6px 0}.tip{background:#134a4333;border:1px solid #2f6e63;border-radius:12px;padding:10px 14px}
.dl-head{display:flex;gap:14px;align-items:center;margin-bottom:12px}.dl-head h3{margin:0}.dl-head p{margin:0}.dl-head img{border-radius:50%}
.dl-foot{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;margin-top:16px;flex-wrap:wrap}
.qr{text-align:center}.qr svg{width:120px;height:120px;background:#fff;border-radius:12px;padding:6px;display:block}.qr small{color:var(--muted)}
.hash{word-break:break-all;font-size:12px}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;max-width:1120px;margin:40px auto 0;padding:24px 18px 40px;border-top:1px solid var(--line);color:var(--muted)}
.foot div:first-child{display:flex;align-items:center;gap:8px}.foot img{border-radius:50%}.foot .links{display:flex;gap:18px}
.center-page{display:flex;align-items:center;justify-content:center;min-height:100vh}.chooser{text-align:center}.chooser img{border-radius:50%}
@media(max-width:860px){.top{flex-wrap:wrap;padding-top:10px;padding-bottom:10px}.top nav{width:100%;justify-content:space-between;gap:10px}.top nav a{font-size:15px}.hero{grid-template-columns:1fr;padding-top:36px}.hero-art{min-height:320px}.doc{grid-template-columns:1fr}.toc{position:static}.top nav{gap:12px}}