:root{--blue:#2563eb;--dark:#0f172a;--muted:#64748b;--bg:#f8fafc;--border:#e5e7eb}
*{box-sizing:border-box}
body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--dark)}
.header{background:#fff;border-bottom:1px solid var(--border);padding:18px 7%;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.logo{font-size:25px;font-weight:900;color:var(--blue);text-decoration:none}
.nav a{margin-left:14px;color:#334155;text-decoration:none;font-weight:800}
.hero{padding:72px 7%;display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}
.hero h1{font-size:52px;line-height:1.04;margin:0 0 18px}
.hero p,.muted{color:var(--muted);font-size:17px;line-height:1.6}
.btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;border-radius:14px;padding:14px 18px;font-weight:900;margin:6px 8px 6px 0}
.btn.light{background:#eff6ff;color:var(--blue)}
.card{background:#fff;border:1px solid var(--border);border-radius:24px;padding:24px;box-shadow:0 18px 55px rgba(15,23,42,.08);margin:14px 0}
.wrap{max-width:1180px;margin:0 auto;padding:40px 20px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.product{background:#fff;border:1px solid var(--border);border-radius:22px;padding:22px;box-shadow:0 14px 42px rgba(15,23,42,.06)}
.product h3{margin-top:0}
.price{font-size:24px;font-weight:900;color:var(--blue)}
.footer{padding:30px 7%;background:#0f172a;color:#fff;margin-top:40px}
.notice{background:#fff7ed;color:#9a3412;border:1px solid #fed7aa;border-radius:16px;padding:16px;margin:16px 0}
@media(max-width:900px){.hero{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.hero h1{font-size:36px}.nav a{display:inline-block;margin:8px 10px 0 0}}