:root{--brand:#0b5cff;--muted:#6b7280;--max:1100px}*{box-sizing:border-box}body{font-family:Inter,system-ui,Arial,sans-serif;margin:0;color:#0b2447;background:#fff}.container{max-width:var(--max);margin:0 auto;padding:20px}.header{border-bottom:1px solid #eee;position:sticky;top:0;background:#fff;z-index:50}.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 20px}.nav a{color:inherit;text-decoration:none;margin-left:14px;font-weight:600}.hero{padding:48px 0;text-align:center}.grid{display:grid;gap:16px}.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.card{background:#fff;padding:18px;border-radius:8px;border:1px solid #f0f0f3;box-shadow:0 2px 6px #0c18400a}.footer{background:#0b2447;color:#fff;padding:28px;text-align:center;margin-top:40px}.btn{background:var(--brand);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;display:inline-block}.small{color:var(--muted);font-size:.95rem}img{max-width:100%;height:auto;display:block;border-radius:8px}