style;样式

 <template>
-  <el-menu router :default-active="activeMenu" mode="horizontal">
+  <el-menu router :default-active="activeMenu" menu-trigger="click" mode="horizontal">
     <!-- 权限菜单 -->
     <sidebar-item v-for="route in permission_routes.slice(1, 4)" :key="route.path" :item="route"
       :base-path="route.path" />

@@ -275,10 +275,9 @@ table td {
   color: #02D9FD !important;
 }
 
-.el-menu--horizontal .el-menu-item:not(.is-disabled):hover,
-.el-select-dropdown__item.hover,
+.el-menu--horizontal .el-menu--popup .el-menu-item:not(.is-disabled):hover,
 .el-select-dropdown__item:hover,
-.el-menu--horizontal .el-menu-item:not(.is-disabled):focus {
+.el-menu--horizontal .el-menu--popup .el-menu-item:not(.is-disabled):focus {
   background: #074487;
   border: 1px solid #02D9FD;
   color: #FFFFFF !important;