:root{color-scheme:light;--ink:#1a1a1a;--muted:#555;--paper:#fff;--soft:#f7f7f7;--line:#e5e5e5;--focus:#276b58}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.85 -apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif}a{color:inherit;text-underline-offset:5px;overflow-wrap:anywhere}a:hover{color:var(--focus)}a:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:5px}header,main,footer{max-width:780px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{font-family:"Hiragino Maru Gothic ProN","Arial Rounded MT Bold",sans-serif;font-size:26px;font-weight:800;letter-spacing:.05em;text-decoration:none}.brand small{font:12px/1.4 ui-monospace,monospace;letter-spacing:.12em;margin-left:10px}.skip{position:absolute;left:16px;top:-100px;background:white;padding:8px}.skip:focus{top:8px}nav{display:flex;gap:18px;flex-wrap:wrap;font-size:14px}.eyebrow{font-size:13px;color:var(--muted);letter-spacing:.08em;margin-top:30px}h1{font-size:clamp(28px,5vw,40px);line-height:1.45;letter-spacing:-.03em;margin:12px 0 24px}h2{font-size:21px;line-height:1.5;margin:38px 0 12px}p,ul{margin:12px 0}ul{padding-left:24px}.lead{font-size:18px}.notice{padding:18px 22px;background:var(--soft);border-radius:12px}.links{display:grid;gap:0;padding:0;list-style:none;margin:32px 0}.links a{display:block;padding:18px 0;border-bottom:1px solid var(--line);text-decoration:none;font-weight:600}.links a span{float:right;color:var(--muted)}.meta,footer{font-size:13px;color:var(--muted)}footer{border-top:1px solid var(--line);margin-top:48px;padding-bottom:40px}footer nav{margin-bottom:16px}section[lang=en]{border-top:1px solid var(--line);margin-top:48px;padding-top:24px}.contact{font-size:18px;font-weight:600}details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-weight:600}main{padding-bottom:24px}section{scroll-margin-top:20px}@media(max-width:480px){header,main,footer{padding:20px}header{align-items:flex-start;gap:12px}.brand small{display:block;margin-left:0}nav{gap:12px}h1{font-size:28px}}@media print{header,.skip,footer nav{display:none}main,footer{max-width:none}a{text-decoration:none}}