:root{font-family:Arial,Helvetica,sans-serif;color:#172538;background:#f4f5f7}*{box-sizing:border-box}body{margin:0}main,header,footer{max-width:1080px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #d5dbe3}header a{text-decoration:none;font-weight:800}.brand{color:#0000cd;letter-spacing:.12em}.eyebrow{color:#0000cd;text-transform:uppercase;font-size:12px;font-weight:700;letter-spacing:.1em}h1{font-size:clamp(36px,6vw,64px);line-height:1.05;max-width:830px;letter-spacing:-.04em}h2{font-size:25px;letter-spacing:-.02em}p,li{line-height:1.6;max-width:800px}a{color:#0000b0}nav{display:flex;gap:20px;flex-wrap:wrap}.intro{font-size:20px;color:#43526a;max-width:720px}.hero{padding:35px 0}.card{background:#fff;border:1px solid #dae0e9;border-radius:10px;padding:26px;margin:20px 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid .card{margin:0}.tag{display:inline-block;background:#e6eafa;color:#182d67;padding:5px 10px;border-radius:4px;font-size:13px}.notice{border-left:4px solid #af7900;background:#fff3d8;padding:15px 18px}.button,button{display:inline-block;padding:12px 18px;background:#0000cd;color:white;border:0;border-radius:5px;text-decoration:none;font:inherit;cursor:pointer}.secondary{background:white;color:#0000b0;border:1px solid #bcc7d7}iframe{width:100%;height:1050px;border:1px solid #d9e0ea;border-radius:8px;background:white}footer{font-size:13px;border-top:1px solid #d5dbe3;margin-top:30px}code{overflow-wrap:anywhere}details{margin:20px 0}input,textarea,select{font:inherit;width:100%;padding:10px;border:1px solid #aebbd0;border-radius:4px}label{display:block;margin:12px 0}textarea{min-height:140px}button:disabled{opacity:.5}.links{margin:25px 0}@media(max-width:650px){.grid{grid-template-columns:1fr}header{align-items:start;gap:20px}header nav{font-size:13px}main{padding:18px}}