:root{--ink:#0f172a;--muted:#64748b;--bg:#f8fafc;--line:#e2e8f0;--accent:#ea580c;--accent-d:#c2410c}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
a{color:var(--accent)}
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-size:22px;font-weight:800;text-decoration:none;color:var(--ink)}
.brand span{color:var(--accent)}
.nav .links a{color:var(--ink);text-decoration:none;font-size:14px;font-weight:600;margin:0 10px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 22px;border-radius:10px;text-decoration:none;font-weight:700;font-size:15px;border:none;cursor:pointer}
.btn:hover{background:var(--accent-d)}
.hero{background:#0f172a;color:#fff;padding:70px 0 60px}
.hero h1{font-size:34px;line-height:1.2;font-weight:800;max-width:760px}
.hero p{color:#cbd5e1;margin:18px 0 26px;max-width:640px;font-size:17px}
.hero .price-date{display:inline-block;background:rgba(234,88,12,.15);border:1px solid var(--accent);color:#fdba74;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;margin-bottom:18px}
section{padding:56px 0}
h2{font-size:26px;font-weight:800;margin-bottom:28px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:800px){.cards{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.card .spec{color:var(--muted);font-size:13px;margin-bottom:12px}
.card .price{font-size:20px;font-weight:800;color:var(--accent)}
.card .price small{font-size:12px;color:var(--muted);font-weight:600}
.benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:800px){.benefits{grid-template-columns:1fr 1fr}}
.benefit{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}
.benefit b{display:block;margin-bottom:6px}
.benefit p{color:var(--muted);font-size:13px}
.b2b{background:#fff7ed;border:1px solid #fed7aa;border-radius:14px;padding:22px;font-size:15px}
.form-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;max-width:520px;margin:0 auto}
.form-box input,.form-box select{width:100%;height:50px;padding:0 14px;border-radius:10px;border:1px solid #cbd5e1;font-size:16px;margin-bottom:12px}
.form-box label{font-size:13px;color:var(--muted);display:flex;gap:8px;margin-bottom:12px}
.err{display:none;color:#dc2626;font-size:14px;margin-bottom:10px}
.ok{display:none;color:#16a34a;font-size:14px;text-align:center;margin-top:10px}
footer{background:#0f172a;color:#94a3b8;padding:32px 0;font-size:14px}