:root{--bg:#f5f7f9;--surface:#fff;--surface2:#f0f4f5;--line:#dfe5e8;--text:#172126;--muted:#67757d;--brand:#087f6d;--brand2:#e7f5f2;--gold:#a76618;--shadow:0 12px 36px rgba(24,42,50,.07);--screen:#0f1a1e;--screenText:#cfe9e4}
@media (prefers-color-scheme:dark){:root{--bg:#0e1416;--surface:#151d20;--surface2:#1a2428;--line:#26333a;--text:#e3eaed;--muted:#8d9aa1;--brand:#2bb39c;--brand2:#12302b;--gold:#d39a4f;--shadow:0 12px 36px rgba(0,0,0,.35);--screen:#081012}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.65 Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
header,main,footer{width:min(1080px,calc(100% - 32px));margin:auto}
header{height:68px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text)}.brand:hover{text-decoration:none}
.brandMark{width:32px;height:32px;display:grid;place-items:center;border-radius:8px;background:var(--brand);color:#fff;font-weight:700}
.brandWords{display:flex;align-items:baseline;gap:8px;line-height:1}.brandWords b{font-size:17px;letter-spacing:.08em}.brandWords small{font-size:11px;color:var(--muted);letter-spacing:.06em}
nav{display:flex;gap:4px}nav a{padding:7px 11px;border-radius:7px;color:var(--muted)}nav a:hover{color:var(--text);background:var(--surface2);text-decoration:none}
main{padding:24px 0 72px}
.eyebrow{color:var(--brand);font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center;padding:40px 0 48px}
.hero h1{margin:10px 0 14px;font-size:44px;line-height:1.12;letter-spacing:-.035em}
.hero p.lead{margin:0 0 26px;color:var(--muted);font-size:17px;max-width:560px}
.buy{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.price{font-size:30px;font-weight:700;letter-spacing:-.02em}.price small{font-size:14px;font-weight:500;color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:9px;padding:12px 20px;font:600 15px/1 inherit;font-family:inherit;cursor:pointer;background:var(--brand);color:#fff}
.btn:hover{filter:brightness(1.08);text-decoration:none}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.note{margin-top:14px;font-size:13px;color:var(--muted)}
#checkoutMsg{display:none;margin-top:14px;padding:12px 14px;border:1px solid var(--line);border-radius:9px;background:var(--surface);font-size:14px}
.phone{justify-self:center;width:240px;aspect-ratio:9/18.5;border-radius:34px;padding:12px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.screen{height:100%;border-radius:24px;background:var(--screen);color:var(--screenText);display:flex;flex-direction:column;justify-content:space-between;padding:18px 16px;font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;overflow:hidden}
.screen .bar{display:flex;justify-content:space-between;opacity:.7}
.screen .t{font-size:30px;font-weight:600;color:#fff;letter-spacing:.02em}
.screen .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#2bd4a4;margin-right:6px;animation:p 1.6s infinite}
@keyframes p{50%{opacity:.25}}
.screen .meter{height:4px;border-radius:2px;background:rgba(255,255,255,.12);overflow:hidden}.screen .meter i{display:block;height:100%;width:38%;background:#2bd4a4}
section{padding:36px 0;border-top:1px solid var(--line)}
section h2{margin:6px 0 20px;font-size:24px;letter-spacing:-.02em}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px}
.card b{display:block;margin-bottom:6px;font-size:15px}.card p{margin:0;color:var(--muted);font-size:14px}
.card .n{font:600 12px/1 ui-monospace,Menlo,Consolas,monospace;color:var(--brand);margin-bottom:10px;display:block}
ul.plain{margin:0;padding-left:18px;color:var(--muted)}ul.plain li{margin:4px 0}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.no li::marker{content:"✕  ";color:#c0504d}
.doc{max-width:760px;padding-top:24px}.doc h1{font-size:32px;letter-spacing:-.02em;margin:8px 0 4px}
.doc .upd{color:var(--muted);font-size:13px;margin-bottom:28px}.doc h2{font-size:18px;margin:28px 0 8px}.doc p,.doc li{color:var(--text)}.doc ul{padding-left:20px}
footer{padding:28px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer nav a{padding:0 12px 0 0;background:none!important}footer nav{flex-wrap:wrap;gap:0}
@media (max-width:820px){.hero{grid-template-columns:1fr;gap:32px;padding-top:24px}.hero h1{font-size:34px}.grid,.cols{grid-template-columns:1fr}header nav{display:none}.phone{width:200px}}