body{margin:0;background:#f5f7fa;color:#172a3a;font:17px/1.65 system-ui,sans-serif}main{max-width:850px;margin:auto;padding:48px 24px}nav{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:44px}a{color:#175b88}h1{font-size:2.3rem;line-height:1.2}h2{margin-top:32px;font-size:1.3rem}.notice{padding:18px 22px;background:#e7eff7;border-left:4px solid #175b88;border-radius:8px}footer{margin-top:48px;border-top:1px solid #dce3eb;padding-top:20px;font-size:.9rem;color:#526577}li{margin-bottom:8px}