:root{color-scheme:light;font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif;color:#183047;background:#f5f8fc}*{box-sizing:border-box}body{margin:0;line-height:1.85}header,main,footer{max-width:820px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #d9e3ec}a{color:#006a82;text-underline-offset:4px}header>a{font-size:24px;font-weight:750;text-decoration:none;letter-spacing:.03em}nav{font-size:14px}main{padding-top:64px;padding-bottom:64px;min-height:65vh}h1{font-size:clamp(30px,6vw,46px);line-height:1.3;letter-spacing:-.025em;margin:12px 0 28px}h2{font-size:21px;margin:36px 0 10px}p,li{font-size:16px}.eyebrow{color:#47677e;font-size:14px;letter-spacing:.08em}.intro{font-size:19px}.panel{margin-top:32px;padding:24px;border:1px solid #d9e3ec;border-radius:12px;background:#fff}.panel h2{margin-top:0}footer{border-top:1px solid #d9e3ec;color:#47677e;font-size:14px}a:focus-visible{outline:3px solid #007f9b;outline-offset:5px}@media(max-width:480px){header,main,footer{padding-left:20px;padding-right:20px}main{padding-top:40px}}