:root{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:#263449;background:#fff}*{box-sizing:border-box}body{margin:0;line-height:1.7}header,main,footer{width:min(820px,calc(100% - 40px));margin:auto}header{padding:24px 0;border-bottom:1px solid #e3e8ef}header a{color:#0f172a;font-weight:700;text-decoration:none}main{padding:48px 0 80px}h1{font-size:clamp(32px,6vw,52px);line-height:1.08;letter-spacing:-.04em;color:#111d31}h2{margin-top:34px;color:#111d31;font-size:21px}a{color:#2563eb}.version{color:#2563eb;text-transform:uppercase;font-size:12px;font-weight:700;letter-spacing:.1em}footer{display:flex;gap:18px;flex-wrap:wrap;padding:28px 0;border-top:1px solid #e3e8ef;font-size:13px}