*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1d2330;background:#f6f7f9}
header{display:flex;gap:14px;align-items:baseline;padding:18px 24px;background:#fff;border-bottom:1px solid #e3e6eb}header span{color:#6b7280;font-size:14px}
main{max-width:760px;margin:40px auto;padding:0 20px}h1{font-size:28px;margin:0 0 12px}h2{font-size:18px;margin:0 0 6px}
.card{background:#fff;border:1px solid #e3e6eb;border-radius:10px;padding:18px 20px;margin-top:16px}footer{text-align:center;color:#9aa1ad;font-size:13px;padding:30px}