diff --git a/src/layout/index.vue b/src/layout/index.vue
index 7baea6772..5570ecd3f 100644
--- a/src/layout/index.vue
+++ b/src/layout/index.vue
@@ -224,7 +224,7 @@ const LayHeader = defineComponent({
 .app-mask {
   position: absolute;
   top: 0;
-  z-index: 999;
+  z-index: 2001;
   width: 100%;
   height: 100%;
   background: #000;
diff --git a/src/style/sidebar.scss b/src/style/sidebar.scss
index 34fce9569..34d05b0e4 100644
--- a/src/style/sidebar.scss
+++ b/src/style/sidebar.scss
@@ -571,6 +571,7 @@
     }
 
     .sidebar-container {
+      z-index: 2001;
       width: $sideBarWidth;
       transition: transform var(--pure-transition-duration);
     }