*{box-sizing:border-box}body{margin:0;font:17px/1.6 system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:#33414f;background:#f4f6f9}
header{background:#1f3a5f;color:#bfe1dc;padding:14px 16px;display:flex;gap:14px;align-items:baseline;flex-wrap:wrap}
.brand{color:#fff;font-weight:700;font-size:20px;text-decoration:none}main{max-width:960px;margin:0 auto;padding:24px 16px;background:#fff}
h1{color:#1f3a5f;line-height:1.25}h2{color:#1f3a5f;margin-top:32px}img{max-width:100%;height:auto;border-radius:8px;margin:16px 0;box-shadow:0 2px 10px #0001}
.lead{font-size:19px}.who,.promise{background:#eef1f5;padding:12px 16px;border-radius:8px}
.buy{display:inline-block;background:#2a9d8f;color:#fff;padding:12px 22px;border-radius:30px;text-decoration:none;font-weight:700}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}.card{border:1px solid #c9d1dc;border-radius:10px;padding:12px;color:inherit;text-decoration:none}
.card h3{margin:4px 0;color:#1f3a5f}.card p{margin:0;font-size:15px}details{border-bottom:1px solid #c9d1dc;padding:10px 0}summary{font-weight:700;cursor:pointer}
nav{font-size:14px;color:#6b7785}nav a{color:#2a9d8f}footer{max-width:960px;margin:0 auto;padding:16px;font-size:14px;color:#6b7785}