:root{color-scheme:light;font-family:system-ui,sans-serif;color:#182b40;background:#f2f5f8}body{margin:0}header,main,footer{max-width:850px;margin:auto;padding:24px}header{border-bottom:2px solid #1d5774}main{background:white;padding:32px;line-height:1.7}h1{font-size:2.1rem;line-height:1.2}h2{font-size:1.25rem;color:#18516c;margin-top:32px}a{color:#075b86;overflow-wrap:anywhere}nav{display:flex;gap:20px;flex-wrap:wrap}.meta,footer{color:#4b5f70;font-size:.95rem}.notice{background:#edf4f8;padding:16px;border-left:4px solid #1d5774}@media(max-width:600px){header,main,footer{padding:20px}h1{font-size:1.7rem}}