/* toc-sidebar.css */
ul {
  list-style-type: none;
}

html {
  scroll-behavior: smooth;
}
@media (min-width: 1100px) {
  /* 电脑宽屏：将目录固定在屏幕左侧 */
  #TOC {
    position: fixed;
    top: 3rem;
    left: calc(50% - 460px - 260px); /* 根据正文版心自适应定位 */
    width: 240px;
    max-height: 80vh;
    overflow-y: auto;
    font-size: 0.9rem;
    padding-right: 1rem;
    border-right: 1px solid rgba(128, 128, 128, 0.2);
  }
}

@media (max-width: 1099px) {
  /* 移动端与小屏：保持在文章上方，加点浅底色区分 */
  #TOC {
    background: rgba(128, 128, 128, 0.08);
    padding: 1rem 1.25rem;
    border-radius: 6px;
    margin-bottom: 2rem;
  }
}