body{margin:0;background:#f4f6f9;color:#192638;font:17px/1.65 Arial,sans-serif}main{max-width:850px;margin:40px auto;padding:36px;background:white;border-radius:12px}nav{display:flex;gap:20px;flex-wrap:wrap}a{color:#1556a3}h1{font-size:34px;line-height:1.2}h2{font-size:21px;margin-top:30px}.meta{color:#526176;font-size:14px}footer{border-top:1px solid #ddd;margin-top:36px;padding-top:18px}@media(max-width:600px){main{margin:0;padding:22px;border-radius:0}h1{font-size:29px}}