:root{color-scheme:light}*{box-sizing:border-box}html{scroll-padding-top:20px}body{margin:0;background:#eef0f5;color:#202c3d;font:16px/1.9 system-ui,-apple-system,"Yu Gothic","Meiryo",sans-serif;overflow-wrap:anywhere}main{max-width:940px;margin:auto;padding:32px 24px 56px}h1{font-size:clamp(26px,5vw,38px);line-height:1.5}h2{font-size:24px;line-height:1.5;border-bottom:1px solid #d4dae3;padding-bottom:12px}h3{font-size:18px;margin-top:28px}a{color:#17578b;text-underline-offset:4px}a:hover{color:#933f16}a:focus-visible{outline:3px solid #a76415;outline-offset:4px}nav,footer{display:flex;flex-wrap:wrap;gap:12px 22px;padding:18px 0}section{background:#fff;border:1px solid #d4dae3;border-radius:10px;margin:22px 0;padding:24px 30px}p{margin:12px 0}li{margin:8px 0}ul{padding-left:24px}dt{font-weight:700;margin-top:20px}dd{margin:4px 0 14px}.muted{color:#58687a;font-size:14px}footer{font-size:14px}@media(max-width:500px){main{padding:22px 14px 36px}section{padding:18px 16px}h2{font-size:21px}body{font-size:15px}nav{gap:10px 16px}}