/* Improved autoexpand CSS: ensure group titles (e.g., 快速开始, 预装软件) are bold and visible */

/* Desktop: show nested nav and emphasize group titles */
@media (min-width: 800px) {
  /* show all nested nav blocks (level 1) */
  nav.md-nav[data-md-level="1"],
  nav.md-nav[data-md-level="1"] .md-nav__list,
  .md-nav__item--section > nav.md-nav,
  .md-nav__item--section > nav.md-nav .md-nav__list {
    display: block !important;
    max-height: none !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  /* Emphasize group titles: make them bold and slightly larger */
  /* The main group toggle label */
  .md-nav__item--section > .md-nav__link,
  .md-nav__item--section > .md-nav__link .md-ellipsis,
  /* The inner nav title shown above child list */
  nav.md-nav[data-md-level="1"] .md-nav__title,
  /* When theme places title inside link */
  /* .md-nav__item--section > .md-nav__link .md-nav__title {
    font-weight: 700 !important;
    font-size: 1rem !important;
    color: inherit !important;
  } */

  /* Ensure the toggle icon aligns and doesn't reduce prominence */
  .md-nav__item--section > .md-nav__link .md-nav__icon {
    opacity: 1 !important;
  }

  /* Child items indent and normal weight */
  nav.md-nav[data-md-level="1"] .md-nav__list .md-nav__item .md-nav__link {
    padding-left: 0.8rem;
    font-weight: 400 !important;
  font-size: 0.9em !important;  /* 子项字体缩小为90% */
  }

  /* Slight spacing between groups */
  .md-nav__item--section {
    margin-top: 0.35rem;
    margin-bottom: 0.15rem;
  }
  /* 将一级标题改为黑色 */
  .md-nav__item--section > .md-nav__link {
    color: rgba(4, 17, 27, 0.847) !important;  /* 改为纯黑 */
  }
  
  /* 如果希望悬停时有变化 */
  .md-nav__item--section > .md-nav__link:hover {
    color: #4051b5 !important;  /* 主题蓝色 */
  }
}

.md-footer-meta__inner {
  display: none !important;
}