/* 左栏层级缩进 */
.md-sidebar--primary .md-nav__item > .md-nav__link { padding-left: 0.8rem; }
.md-sidebar--primary .md-nav__item > ul > .md-nav__item > .md-nav__link { padding-left: 1.6rem; }
.md-sidebar--primary .md-nav__item > ul > .md-nav__item > ul > .md-nav__item > .md-nav__link { padding-left: 2.4rem; }




.md-sidebar--primary .md-nav__link {
  border-radius: 6px;
  transition: all 0.25s ease;
}

.md-sidebar--primary .md-nav__link:hover {
  background: rgba(52, 152, 219, 0.08);
  padding-left: 1rem;
  transform: translateX(4px);
}