.gray {
  #app {

    // $topHeight: 50px;
    // 主体区域
    .main-container {
      height: 100%;
      transition: margin-left .28s;
      margin-left: var(--admin-layout-left-menu-expand, 224px);
      position: relative;
    }

    // 侧边栏
    .sidebar-container {
      transition: width 0.28s;
      width: var(--admin-layout-left-menu-expand, 224px) !important;
      height: 100%;
      position: fixed;
      top: 0;
      bottom: 0;
      left: 0;
      z-index: 1001;
      overflow: hidden;
      font-size: 14px;
      font-weight: 400;
      color: rgba(0, 13, 31, 0.85);
      line-height: 14px;
      background: #FFF;
      box-shadow: 0px 2px 8px 0px rgba(164, 178, 201, 0.4);
      
      & {
        display: flex;
        flex-direction: column;

        & > .el-scrollbar {
          flex: 1 1 auto;
          .el-menu {
            margin-top: 5px;
          }
        }
      }

      //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;
      }

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

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

        .system-item {
          padding-left: 10px;
          font-size: medium;
          font-weight: 600;
          opacity: 0.8;
          cursor: default;
        }
      }

      .hamburger-container {
        width: 100%;
        line-height: 48px;
        height: 48px;
        background-color: #F9F9F9;
      }

      .is-horizontal {
        display: none;
      }

      a {
        display: inline-block;
        width: 100%;
        overflow: hidden;
      }

      .el-menu {
        position: static;
        border: none;
        // height: 100%;
        height: auto;
        max-height: 100vh;
        width: 100% !important;
        background-color: #FFF;
        color: #000D1F
      }
    }

    .hideSidebar {
      .sidebar-container {
        width: var(--admin-layout-left-menu-collapse, 54px) !important;
        .smb-sidebar-menu-item {
          .smb-sidebar-menu-item-icon {
            & ~ * {
              display: none !important;
            }
          }
        }
      }

      .main-container {
        margin-left: var(--admin-layout-left-menu-collapse, 54px);
      }

      .el-submenu {
        overflow: hidden;

        &>.el-submenu__title {
          padding-left: 20px !important;

          .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;
            }
          }
        }
      }
    }

    .sidebar-container .nest-menu .el-submenu>.el-submenu__title,
    .sidebar-container .el-submenu .el-menu-item {
      min-width: 224px !important;
    }

    .sidebar-container .el-menu--collapse .el-menu .el-submenu {
      min-width: 224px !important;
    }

    .sidebar-container .el-menu--collapse .el-submenu.is-active>.el-submenu__title,
    .sidebar-container .el-menu--collapse .el-menu.is-active {
      background-color: #EBECFF !important;
      color: #3D4CF2;
      font-weight: 500;
      border-right: 2px solid #3D4CF2
    }

    .sidebar-container .el-menu--collapse .el-submenu__title:not(.is-disabled):hover,
    .sidebar-container .el-menu-item:not(.is-disabled):hover {
      background: #F7F7F8;
      color: rgba(0, 13, 31, 0.85);
      font-weight: 500;
    }

    .sidebar-container .el-menu--collapse {
      text-align: left;
    }

    //适配移动端
    .mobile {
      .main-container {
        margin-left: 0px;
      }

      .sidebar-container {
        transition: transform .28s;
        width: 224px !important;
      }

      &.hideSidebar {
        .sidebar-container {
          transition-duration: 0.3s;
          transform: translate3d(-224px, 0, 0);
        }
      }
    }

    .withoutAnimation {

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

// 注释的原因：会导致孙子菜单显示的位置不正确
  // .sidebar-container-popper .el-menu{
  //   // height: 100vh;
  //   height: auto;
  //   max-height: 100vh;
  //   overflow-y: auto;
  //   overflow-x: hidden;
  //   scroll-behavior: smooth;
  // }

  .sidebar-container-popper .el-submenu__title:not(.is-disabled):hover {
    background: #F7F7F8;
    color: rgba(0, 13, 31, 0.85);
    font-weight: 500;
  }

  .sidebar-container-popper .el-menu-item.is-active,.sidebar-container-popper .el-menu .el-submenu.is-active>.el-submenu__title {
    background-color: #EBECFF !important;
    color: #3D4CF2;
    font-weight: 500;
    border-right: 2px solid #3D4CF2
  }

  .sidebar-container-popper .el-menu .el-menu-item:hover {
    background: #F7F7F8;
    color: rgba(0, 13, 31, 0.85);
    font-weight: 500;
  }

  .sidebar-container-popper .el-menu .el-menu-item.is-active {
    color: #3D4CF2;
    font-weight: 500;
  }

  .sidebar-container-popper .el-menu--collapse {
    text-align: left;
  }
}