*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1d2330;background:#f7f8fb;line-height:1.6}
.wrap{max-width:880px;margin:0 auto;padding:0 20px}header{background:#1f3a8a;color:#fff;padding:56px 0 48px}
header h1{font-size:2.4rem;margin:0 0 8px}header p{font-size:1.15rem;margin:0 0 20px;opacity:.95}
nav{padding:14px 0}nav a{color:#fff;margin-right:16px;text-decoration:none;font-weight:600}
.btn{display:inline-block;background:#fbbf24;color:#1d2330;padding:12px 22px;border-radius:8px;font-weight:700;text-decoration:none}
section{padding:40px 0}h2{font-size:1.6rem;margin-top:0}code{background:#e8ecf5;padding:2px 6px;border-radius:4px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.card{background:#fff;border:1px solid #e1e5ee;border-radius:12px;padding:22px}.card h3{margin-top:0}
.price{font-size:2rem;font-weight:800}.pro{border:2px solid #1f3a8a}ul{padding-left:20px}
footer{border-top:1px solid #e1e5ee;padding:24px 0;font-size:.9rem;color:#5b6475}footer a{color:#1f3a8a}
.demo{background:#fff;border:1px solid #e1e5ee;border-radius:12px;padding:18px;font-family:ui-monospace,monospace}