diff --git a/packages/device/IntelligentSecurity/components/deviceSlider.vue b/packages/device/IntelligentSecurity/components/deviceSlider.vue
index 139bc85e..f134875f 100644
--- a/packages/device/IntelligentSecurity/components/deviceSlider.vue
+++ b/packages/device/IntelligentSecurity/components/deviceSlider.vue
@@ -278,8 +278,8 @@ export default {
       .el-tree-node__content {
         background: transparent!important;
       }
-      
-      .el-tree-node__children .is-current .el-tree-node__content {
+
+      .el-tree-node__children .is-current > .el-tree-node__content {
         background: linear-gradient(90deg, #299FFF 0%, #0C61FF 100%)!important;
       }