:root{--navy:#0a2940;--bg:#f6f8fb;--text:#0f172a;--muted:#475569}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial;background:var(--bg);color:var(--text)}
.container{max-width:1120px;margin:0 auto;padding:0 16px}
.nav{position:sticky;top:0;background:#fff;border-bottom:1px solid #e5e7eb;z-index:10}
.nav .wrap{height:68px;display:flex;align-items:center;justify-content:space-between}
.nav a{color:#1f2937;text-decoration:none;margin-left:18px;font-weight:600}
.logo{display:flex;align-items:center;gap:10px}
.logo img{height:36px}
.btn{display:inline-block;padding:12px 18px;border-radius:12px;font-weight:700;text-decoration:none}
.btn-primary{background:#0f172a;color:#fff}
.btn-ghost{background:#fff;color:#0f172a;border:1px solid #e5e7eb}
.hero{background:linear-gradient(180deg,#0b1e2d,#102b41);color:#fff;padding:88px 0}
.hero h1{font-size:40px;margin:0 0 10px}
.subtitle{color:#475569}
.section{padding:64px 0}
.grid{display:grid;gap:16px}
.cards{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:18px;box-shadow:0 8px 20px rgba(0,0,0,.04)}
.footer{background:#0b1e2d;color:#cbd5e1}
.footer a{color:#cbd5e1}
.footer .bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;font-size:12px;color:#94a3b8}
input,textarea{width:100%;padding:10px;border:1px solid #e5e7eb;border-radius:12px;font:inherit}
label{font-size:14px;color:#334155;display:block;margin-top:10px}