*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:#0f172a;background:#ffffff}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.nav{position:sticky;top:0;background:#ffffffcc;backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid #e2e8f0;z-index:50}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav a{color:#0f172a;text-decoration:none;margin-left:18px;font-weight:600}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.logo{width:28px;height:28px}
.btn{display:inline-block;padding:12px 18px;border-radius:10px;border:1px solid #0ea5e9;text-decoration:none;font-weight:700}
.btn.primary{background:#0ea5e9;color:white;border-color:#0ea5e9}
.btn.ghost{background:white;color:#0ea5e9}
.btn.small{padding:8px 12px;font-size:14px}
.hero{padding:70px 0;background:linear-gradient(180deg,#ecfeff,transparent)}
.grid2{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.lead{font-size:18px;color:#334155}
.cta-row{display:flex;gap:12px;margin:16px 0 10px}
.bullet{padding-left:18px;color:#334155}
.hero-card img{width:100%;border-radius:16px;box-shadow:0 12px 40px rgba(2,8,23,.15)}
.section{padding:70px 0}
.section.alt{background:#f8fafc}
h1{font-size:44px;margin:0 0 10px}
h2{font-size:32px;margin:0 0 26px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{padding:18px;border:1px solid #e2e8f0;border-radius:14px;background:white;box-shadow:0 4px 16px rgba(2,8,23,.05)}
.card.featured{border-color:#0ea5e9;box-shadow:0 10px 30px rgba(14,165,233,.2)}
.price{grid-template-columns:repeat(3,1fr)}
.price-tag{font-size:28px;font-weight:800;margin:8px 0 10px}
.steps{line-height:1.8;color:#334155}
.diagram{width:100%;border-radius:12px;border:1px solid #e2e8f0;background:#fff;padding:8px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.gallery img{width:100%;border-radius:12px;border:1px solid #e2e8f0}
.contact{list-style:none;padding:0;margin:0 0 12px}
.contact li{margin:6px 0}
.contact-form{display:grid;grid-template-columns:1fr;gap:10px;background:#ffffff;border:1px solid #e2e8f0;border-radius:14px;padding:18px}
.contact-form input,.contact-form textarea{width:100%;padding:10px;border:1px solid #cbd5e1;border-radius:10px}
.footer{padding:26px 0;border-top:1px solid #e2e8f0;background:#fff}
.muted{font-size:12px;color:#64748b;margin-top:6px}
@media(max-width:900px){.grid2{grid-template-columns:1fr}.cards{grid-template-columns:1fr 1fr}.price{grid-template-columns:1fr}.nav nav{display:none}}