.header-menu {
  display: none;
  flex-direction: row;
  position: fixed;
  z-index: 1000;
  width: 7.5rem;
  top: 1rem;
  left: 0;
  right: 0;
  bottom: 0;
  font-family: MiSans;
  font-weight: 400;
  font-size: 0.3rem;
  overflow: hidden;
}
.header-menu .item-wrapper {
  position: relative;
  left: -7.5rem;
  height: 100%;
  width: 6.3rem;
  overflow: scroll;
  background: #F7F7F7;
}
.header-menu .item-bg {
  height: 100%;
  width: 1.2rem;
}
.header-menu .item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 1.21rem;
  line-height: 1.21rem;
  padding-left: 1.02rem;
  padding-right: 1.02rem;
  border-top: 0.01rem solid #D3D3D3;
  background: #F7F7F7;
}
.header-menu .item .expand {
  display: inline-block;
  width: 0.2rem;
  height: 0.2rem;
  margin-bottom: 0.1rem;
  border: 0 solid #222222;
  border-left-width: 0.04rem;
  border-bottom-width: 0.04rem;
  transform: rotate(-45deg);
}
.header-menu .item .expand.active {
  transform: rotate(135deg);
  margin-top: 0.1rem;
  margin-bottom: 0rem;
}
.header-menu a {
  color: #222222;
}
.header-menu a:visited {
  color: #222222;
}
.header-menu .all-course {
  display: none;
  border: 0 solid #D3D3D3;
  border-top-width: 0.01rem;
  border-bottom-width: 0.01rem;
  padding-left: 1rem;
  padding-bottom: 0.3rem;
  background: #F0F0F0;
}
.header-menu .all-course li {
  padding-top: 0.46rem;
  padding-bottom: 0.14rem;
}
.header-menu .all-school {
  display: none;
  flex-wrap: wrap;
  justify-content: space-between;
  border-top: 0.01rem solid #D3D3D3;
  padding-right: 1.01rem;
  padding-bottom: 0.46rem;
  background: #F0F0F0;
}
.header-menu .all-school li {
  white-space: nowrap;
  padding-left: 1.01rem;
  padding-top: 0.46rem;
}
.header-menu .all-school .shijiazhuang {
  flex: 1;
}