:root{--blue:#2563eb;--ink:#172033;--muted:#5f6b7a;--line:#e4e8ef;--bg:#f6f8fb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.7}header{background:#fff;border-bottom:1px solid var(--line)}.bar,main{max-width:900px;margin:auto;padding:18px 24px}.brand{font-weight:800;color:var(--ink);text-decoration:none}.brand span{display:inline-grid;place-items:center;width:30px;height:30px;margin-right:8px;border-radius:8px;background:var(--blue);color:#fff}.back{float:right;color:var(--blue);text-decoration:none;font-weight:600}main{margin-top:28px;margin-bottom:40px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px}h1{font-size:30px;line-height:1.2;margin:0 0 8px}h2{font-size:19px;margin-top:28px}p,li{color:var(--muted)}a{color:var(--blue)}.updated{font-size:13px;color:#8792a2}.contact{display:inline-block;padding:11px 18px;border-radius:9px;background:var(--blue);color:#fff;text-decoration:none;font-weight:700}@media(max-width:600px){.bar,main{padding:18px}main{margin:16px;border-radius:12px}h1{font-size:25px}.back{font-size:13px}}