:root{color-scheme:light;font-family:system-ui,"Malgun Gothic",sans-serif;color:#17202c;background:#f7f8fa}*{box-sizing:border-box}body{margin:0;line-height:1.85}header,main,footer{max-width:860px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;gap:20px;align-items:center;border-bottom:1px solid #dde2e9}a{color:#1758bb;overflow-wrap:anywhere}nav{display:flex;gap:18px;flex-wrap:wrap}.brand{font-size:22px;font-weight:750;text-decoration:none;color:#17202c}h1{font-size:clamp(28px,6vw,42px);line-height:1.3;letter-spacing:-.04em}h2{font-size:22px;margin-top:34px}p,li{word-break:keep-all;overflow-wrap:anywhere}.lead{font-size:19px;color:#4d5c6d}.notice{padding:20px;background:#eaf1ff;border-radius:12px}section{margin:32px 0}footer{border-top:1px solid #dde2e9;color:#566477;font-size:14px}code{background:#e8ecf1;padding:2px 5px;border-radius:4px}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:0;background:white;padding:10px}@media(max-width:600px){header{align-items:flex-start;flex-direction:column}header,main,footer{padding:20px}}