huangguo_admin/src/styles/sidebar.scss

#app {
  // font-family: "楷体","楷体_GB2312";

  .main-container {
    min-height: 100%;
    transition: margin-left 0.28s;
    margin-left: $sideBarWidth;
    position: relative;
  }
  .el-menu-item {
    color: $menuText !important;
    background-color: transparent !important;
  }
  .el-menu {
    background-color: transparent;
    // >.el-menu-item {
    //   color: $menuText !important;
    //   background-color: transparent !important;
    //   > span {
    //     color: $secondMenuText;
    //     font-weight: normal;
    //   }
    // }
    >.menu-wrapper{
        >a{
            >.el-menu-item{
                >span{
                    color: $secondMenuText;
                    font-weight: normal;
                }
            }
            >.submenu-title-noDropdown{
                >span{
                    color: $menuText;
                    font-weight: 700;
                }
            }
        }
     
    }
  }

  .sidebar-container {
    transition: width 0.28s;
    width: $sideBarWidth !important;
    background-color: transparent;
    background-image: $menuBg;
    height: 100%;
    position: fixed;
    font-size: 0px;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1001;
    overflow: hidden;

    // reset element-ui css
    .horizontal-collapse-transition {
      transition: 0s width ease-in-out, 0s padding-left ease-in-out,
        0s padding-right ease-in-out;
    }

    .scrollbar-wrapper {
      overflow-x: hidden !important;
    }

    .el-scrollbar__bar.is-vertical {
      right: 0px;
    }

    .el-scrollbar {
      height: 100%;
    }

    &.has-logo {
      .el-scrollbar {
        background: $menuBg;
        height: calc(100% - 50px);
      }
    }

    .is-horizontal {
      display: none;
    }

    a {
      display: inline-block;
      width: 100%;
      overflow: hidden;
      text-decoration: none;
    }

    .svg-icon {
      margin-right: 16px;
    }

    .el-menu {
      border: none;
      height: 100%;
      width: 100% !important;
    }

    // menu hover
    .submenu-title-noDropdown,
    .el-submenu__title {
      &:hover {
        color: #fff !important;
        background: $menuHover !important;
      }
      i {
        margin-left: 10px;
      }
    }

    // .is-active>.el-submenu__title {
    //   color: #fff !important;
    //   background-color: #B28BE6 !important;
    // }
    .is-opened > .el-menu--inline {
      background-color: $noselectMenuBg !important; // 未选中子菜单背景色
    }
    // .is-opened>.el-menu--inline>.nest-menu>.router-link-active>.is-active{
    //   background-color: $subMenuHover !important;
    // }
    // .is-opened>.el-menu--inline>.menu-wrapper{
    //   background-color: #FFDA7E !important;
    // }

    .router-link-exact-active > .is-active {
      color: rgb(255, 255, 255) !important;
      background-color: $selectMenuBg !important; // 选中的子菜单背景色
     
    }

    // & .nest-menu .el-submenu>.el-submenu__title,
    & .el-submenu {
      // min-width: $sideBarWidth !important;
      // background: $subMenuBg !important;

      &:hover {
        background: $subMenuBg !important;
      }
    }
    & .el-submenu .el-menu-item {
      // min-width: $sideBarWidth !important;
      // background: $subMenuBg !important;
      &>span{
        color: #333 !important;
      }
    
      &:hover {
        background: $subMenuActiveText !important;
      }
    }
    & .el-submenu .is-active {
      // min-width: $sideBarWidth !important;
      // background: $subMenuBg !important;
      &>span{
        color: #fff !important;
      }
    }
  }
  .hideSidebar {
    .sidebar-container {
      width: 54px !important;
    }

    .main-container {
      margin-left: 54px;
    }

    .submenu-title-noDropdown {
      padding: 0 !important;
      position: relative;

      .el-tooltip {
        padding: 0 !important;

        .svg-icon {
          margin-left: 20px;
        }
      }
    }

    .el-submenu {
      overflow: hidden;

      & > .el-submenu__title {
        padding: 0 !important;

        .svg-icon {
          margin-left: 20px;
        }

        .el-submenu__icon-arrow {
          display: none;
        }
      }
    }

    .el-menu--collapse {
      .el-submenu {
        & > .el-submenu__title {
          & > span {
            height: 0;
            width: 0;
            overflow: hidden;
            visibility: hidden;
            display: inline-block;
          }
        }
      }
    }
  }

  .el-menu--collapse .el-menu .el-submenu {
    min-width: $sideBarWidth !important;
  }

  // mobile responsive
  .mobile {
    .main-container {
      margin-left: 0px;
    }

    .sidebar-container {
      transition: transform 0.28s;
      width: $sideBarWidth !important;
    }

    &.hideSidebar {
      .sidebar-container {
        pointer-events: none;
        transition-duration: 0.3s;
        transform: translate3d(-$sideBarWidth, 0, 0);
      }
    }
  }

  .withoutAnimation {
    .main-container,
    .sidebar-container {
      transition: none;
    }
  }
}

// when menu collapsed
.el-menu--vertical {
  & > .el-menu {
    .svg-icon {
      margin-right: 16px;
    }
  }

  .nest-menu .el-submenu > .el-submenu__title,
  .el-menu-item {
    &:hover {
      // you can use $subMenuHover
      background-color: $menuHover !important;
    }
  }

  // the scroll bar appears when the subMenu is too long
  > .el-menu--popup {
    max-height: 100vh;
    overflow-y: auto;

    &::-webkit-scrollbar-track-piece {
      background: #d3dce6;
    }

    &::-webkit-scrollbar {
      width: 6px;
    }

    &::-webkit-scrollbar-thumb {
      background: #99a9bf;
      border-radius: 20px;
    }
  }
}