:root{color-scheme:light;--ink:#23272e;--link:#164ea6;--line:#d8dde4;--accent:#ce5312}*{box-sizing:border-box}html{scrollbar-gutter:stable}body{margin:0;background:#fff;color:var(--ink);font:17px/1.6 "Segoe UI",Arial,sans-serif}header,main,footer{max-width:960px;margin:auto;padding:24px}header{border-top:5px solid var(--accent);border-bottom:1px solid var(--line)}.brand{display:flex;gap:16px;align-items:baseline;flex-wrap:wrap}.brand a{font-size:28px;font-weight:700;color:var(--ink);text-decoration:none}.brand span{color:#505966}nav,footer{display:flex;gap:12px 24px;flex-wrap:wrap}nav{margin-top:16px}a{color:var(--link);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid var(--link);outline-offset:4px}nav a,footer a{display:inline-block;padding:6px 0}h1{font-size:clamp(28px,5vw,40px);line-height:1.2;margin:12px 0 24px;overflow-wrap:anywhere}h2{font-size:23px;line-height:1.3;margin:32px 0 12px}p{max-width:75ch}.notice{padding:14px 18px;background:#f3f5f7;border-left:4px solid #657181}.guides,.platforms{padding-left:24px}.guides li,.platforms li{padding:8px 0;overflow-wrap:anywhere}.guides a,.platforms a{display:inline-block;min-height:28px}small{color:#505966}footer{border-top:1px solid var(--line);font-size:15px;margin-top:24px}.skip{position:absolute;left:12px;top:-100px;background:white;padding:12px;z-index:1}.skip:focus{top:12px}@media(max-width:480px){header,main,footer{padding:18px}nav{gap:4px 18px}body{font-size:16px}}