body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;max-width:860px;margin:0 auto;padding:24px;color:#1d1d1f;line-height:1.55}
.banner{background:#fff3cd;border:1px solid #e0c36a;padding:10px 14px;border-radius:8px;font-size:14px}
code,pre{background:#f4f4f6;border-radius:6px}pre{padding:12px;overflow:auto;font-size:13px}code{padding:1px 4px}
.card{border:1px solid #ddd;border-radius:10px;padding:16px 18px;margin:16px 0}.card h3{margin-top:0}
a{color:#0a58ca}h1{margin-bottom:4px}.muted{color:#666;font-size:14px}table{border-collapse:collapse}td,th{border:1px solid #ddd;padding:6px 8px;font-size:14px}