/* tocbot — 精简覆盖，实际样式由 style.css 控制 */
.toc-list { margin: 0; padding: 0; }
.toc-list li { list-style: none; }
.is-collapsible { max-height: 1000px; overflow: hidden; transition: all 300ms ease-in-out; }
.is-collapsed { max-height: 0; }