:root{font-family:system-ui,sans-serif;color:#142235;background:#f4f7fa}*{box-sizing:border-box}body{margin:0}header,main,footer{width:min(920px,calc(100% - 32px));margin:auto}header{padding:34px 0 18px}main{background:#fff;border:1px solid #d8e1ea;border-radius:16px;padding:clamp(22px,5vw,48px);box-shadow:0 14px 40px #13243a12}h1{color:#203a58}h2{margin-top:2rem;color:#294d6f}p,li{line-height:1.65}a{color:#087a77}nav{display:flex;gap:14px;flex-wrap:wrap}footer{padding:28px 0;color:#526579}.notice{background:#edf8f6;border-left:4px solid #26978f;padding:14px}.caps{font-weight:700}.meta{color:#607287}