:root{color-scheme:light}
body{margin:0;background:#F6F7F9;color:#0F1D33;font:15px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:32px 20px 64px}
header{display:flex;align-items:center;gap:10px;margin-bottom:28px}
.mark{width:34px;height:34px;border-radius:10px;background:#17325C;display:grid;place-items:center;font-weight:800;color:#fff}
h1{font-size:28px;line-height:1.2;margin:0 0 8px;letter-spacing:-.02em}
h2{font-size:18px;margin:30px 0 8px}
p,li{color:#3B4A60}
a{color:#2A5298}
.muted{color:#667085;font-size:13px}
.card{background:#fff;border:1px solid #E3E7ED;border-radius:12px;padding:16px 18px;margin:16px 0}
.btn{display:inline-block;background:#17325C;color:#fff;padding:11px 18px;border-radius:10px;text-decoration:none;font-weight:650;margin:6px 8px 0 0}
.btn.alt{background:#fff;color:#0F1D33;border:1px solid #D0D5DD}
nav a{margin-right:16px;font-size:14px}
h1,h2{font-family:Georgia,"Times New Roman",serif}