diff --git a/frontend/src/components/Assistant.vue b/frontend/src/components/Assistant.vue
index f42bca9..73eb515 100644
--- a/frontend/src/components/Assistant.vue
+++ b/frontend/src/components/Assistant.vue
@@ -297,36 +297,24 @@ onMounted(async () => {
 	userUpsertModal.value = new Modal(
 		$upsertModalElement,
 		{},
-		{
-			id: "user-upsert-modal",
-		},
 	);
 	const $userDeleteModalElement: HTMLElement | null =
 		document.querySelector("#user-delete-modal");
 	userDeleteModal.value = new Modal(
 		$userDeleteModalElement,
 		{},
-		{
-			id: "user-delete-modal",
-		},
 	);
 	const $departmentDeleteModalElement: HTMLElement | null =
 		document.querySelector("#department-delete-modal");
 	departmentDeleteModal.value = new Modal(
 		$departmentDeleteModalElement,
 		{},
-		{
-			id: "department-delete-modal",
-		},
 	);
 	const $departmentUpsertModalElement: HTMLElement | null =
 		document.querySelector("#department-upsert-modal");
 	departmentUpsertModal.value = new Modal(
 		$departmentUpsertModalElement,
 		{},
-		{
-			id: "department-upsert-modal",
-		},
 	);
 });
 </script>
diff --git a/frontend/src/components/Headbar.vue b/frontend/src/components/Headbar.vue
index b599c16..ed8ea53 100644
--- a/frontend/src/components/Headbar.vue
+++ b/frontend/src/components/Headbar.vue
@@ -1,5 +1,5 @@
 <template>
-  <nav class="fixed top-0 w-full bg-white border-b border-gray-200 z-50">
+  <nav class="fixed top-0 w-full bg-white border-b border-gray-200 z-40">
     <div class="px-3 py-3 lg:px-5 lg:pl-3">
       <div class="flex items-center justify-between">
         <div class="flex items-center justify-start rtl:justify-end">
diff --git a/frontend/src/components/Sidebar.vue b/frontend/src/components/Sidebar.vue
index cc1ba61..26d17e2 100644
--- a/frontend/src/components/Sidebar.vue
+++ b/frontend/src/components/Sidebar.vue
@@ -3,7 +3,7 @@
 		class="fixed top-0 left-0 px-1 w-44 min-h-screen overflow-y-auto pt-20 transform transition-transform duration-300 ease-in-out bg-white border-r border-gray-200"
 		:class="[
 			isDrawerVisible ? 'translate-x-0' : '-translate-x-full sm:translate-x-0',
-			isDrawerVisible ? 'z-40' : ''
+			isDrawerVisible ? 'z-30' : ''
 		]" aria-label="Sidebar">
 		<div class="h-full px-3 pb-4 overflow-y-auto bg-white">
 			<ul class="space-y-2 font-medium">
@@ -21,7 +21,7 @@
 	</aside>
 
 	<!-- 遮罩层 -->
-	<div class="fixed inset-0 bg-gray-900/50 transition-all duration-300 sm:hidden z-30" :class="[
+	<div class="fixed inset-0 bg-gray-900/50 transition-all duration-300 sm:hidden z-20" :class="[
 			isDrawerVisible ? 'opacity-100' : 'opacity-0 pointer-events-none'
 		]" @click="closeSidebar">
 	</div>