*{box-sizing:border-box}body{margin:0;min-width:1280px;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;color:#000000e0;background:#f0f2f5;-webkit-font-smoothing:antialiased}#root{min-height:100vh}.ant-layout-content h2{margin:0 0 24px;font-size:20px;font-weight:600;color:#000000e0}.rte-topbar{display:flex;justify-content:flex-end;gap:8px;margin-bottom:8px}.rte-tab{border:1px solid var(--border);background:transparent;border-radius:6px;padding:6px 10px;cursor:pointer;font-size:12px;color:var(--muted)}.rte-preview{border:1px solid var(--border);border-radius:8px;min-height:280px;padding:12px;background:#fff9}.rte-textarea{width:100%;min-height:280px;padding:10px;border:1px solid var(--border);border-radius:8px;font-family:monospace;font-size:12px}