:root{
  --bg:#ffffff; --text:#0f172a; --muted:#475569; --accent:#0ea5e9; --accent-2:#0369a1;
  --card:#f8fafc;
}
*{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,Ubuntu,Arial,sans-serif}
.container{max-width:1100px;margin:0 auto;padding:24px}
header{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(6px);border-bottom:1px solid #e2e8f0;z-index:10}
header .inner{display:flex;gap:20px;align-items:center;justify-content:space-between}
nav a{margin:0 12px;text-decoration:none;color:var(--muted)}
nav a:hover{color:var(--accent)}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center;padding:40px 0}
.hero img{width:100%;height:auto;border-radius:16px;box-shadow:0 8px 24px rgba(2,6,23,.15)}
.badge{display:inline-block;background:#e0f2fe;color:#075985;padding:6px 10px;border-radius:999px;font-weight:600;font-size:12px;margin-bottom:10px}
h1{font-size:42px;line-height:1.15;margin:.2em 0}
.lead{color:var(--muted);font-size:18px}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.btn{display:inline-block;padding:14px 18px;border-radius:12px;text-decoration:none;font-weight:700}
.btn.primary{background:var(--accent);color:white}
.btn.primary:hover{background:var(--accent-2)}
.btn.secondary{background:#e2e8f0;color:#0f172a}
.section{padding:40px 0}
.card{background:var(--card);border:1px solid #e2e8f0;border-radius:16px;padding:20px}
.grid{display:grid;gap:20px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.hero{grid-template-columns:1fr}.grid.cols-3{grid-template-columns:1fr}.grid.cols-2{grid-template-columns:1fr}}
.faq details{border:1px solid #e2e8f0;border-radius:12px;padding:14px 16px;background:#fff}
.faq summary{cursor:pointer;font-weight:700}
.footer{border-top:1px solid #e2e8f0;color:var(--muted);padding:24px 0;margin-top:30px}
.sticky-buy{position:fixed;bottom:12px;left:0;right:0;display:flex;justify-content:center;z-index:20}
.sticky-buy a{box-shadow:0 8px 22px rgba(2,6,23,.2)}