.markdown-body pre { position: relative; padding-top: 48px; }
.markdown-body .code-copy-btn { position: absolute; top: 10px; right: 10px; display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); border-radius: 8px; padding: 5px 8px; background: var(--panel); color: var(--muted); font-size: 12px; cursor: pointer; }
.markdown-body .code-copy-btn:hover { color: var(--accent); border-color: var(--accent); }