diff --git a/lesingle-creation-frontend/src/views/public/ActivityDetail.vue b/lesingle-creation-frontend/src/views/public/ActivityDetail.vue
index 25da82c..d77616b 100644
--- a/lesingle-creation-frontend/src/views/public/ActivityDetail.vue
+++ b/lesingle-creation-frontend/src/views/public/ActivityDetail.vue
@@ -262,7 +262,7 @@
     </div>
 
     <!-- 报名弹窗 -->
-    <a-modal v-model:open="showRegisterModal" title="活动报名" :footer="null" :width="420">
+    <a-modal v-model:open="showRegisterModal" title="活动报名" :footer="null" :width="420" centered>
       <div class="register-modal">
         <template v-if="isChildUser">
           <p class="modal-desc">将使用当前账号报名，确认参加本活动吗？</p>
diff --git a/lesingle-creation-frontend/src/views/public/components/WorkSelector.vue b/lesingle-creation-frontend/src/views/public/components/WorkSelector.vue
index c853be5..ece3e95 100644
--- a/lesingle-creation-frontend/src/views/public/components/WorkSelector.vue
+++ b/lesingle-creation-frontend/src/views/public/components/WorkSelector.vue
@@ -3,6 +3,7 @@
     :open="open"
     title="从作品库选择作品"
     :width="600"
+    centered
     @cancel="$emit('update:open', false)"
     @ok="handleConfirm"
     :ok-button-props="{ disabled: !selectedWork }"
diff --git a/lesingle-creation-frontend/src/views/public/mine/Children.vue b/lesingle-creation-frontend/src/views/public/mine/Children.vue
index 33f4fd6..d2fa4d0 100644
--- a/lesingle-creation-frontend/src/views/public/mine/Children.vue
+++ b/lesingle-creation-frontend/src/views/public/mine/Children.vue
@@ -68,6 +68,7 @@
       title="创建子女账号"
       :footer="null"
       :width="440"
+      centered
     >
       <a-form :model="createForm" layout="vertical" @finish="handleCreate" class="child-form">
         <a-form-item label="用户名" name="username" :rules="[{ required: true, message: '请输入用户名' }, { min: 4, message: '至少4个字符' }]">
@@ -109,6 +110,7 @@
       title="编辑子女账号"
       :footer="null"
       :width="440"
+      centered
     >
       <a-form :model="editForm" layout="vertical" @finish="handleEdit" class="child-form">
         <a-form-item label="昵称" name="nickname">
diff --git a/lesingle-creation-frontend/src/views/public/mine/Index.vue b/lesingle-creation-frontend/src/views/public/mine/Index.vue
index fdcc41a..de47be0 100644
--- a/lesingle-creation-frontend/src/views/public/mine/Index.vue
+++ b/lesingle-creation-frontend/src/views/public/mine/Index.vue
@@ -69,7 +69,7 @@
     </div>
 
     <!-- 编辑个人信息弹窗 -->
-    <a-modal v-model:open="showEditModal" title="编辑个人信息" :footer="null" :width="400">
+    <a-modal v-model:open="showEditModal" title="编辑个人信息" :footer="null" :width="400" centered>
       <a-form layout="vertical" @finish="handleSaveProfile" style="margin-top: 16px;">
         <a-form-item label="昵称" :rules="[{ required: true, message: '请输入昵称' }]">
           <a-input v-model:value="editForm.nickname" placeholder="你的昵称" :maxlength="20" />
diff --git a/lesingle-creation-frontend/src/views/public/works/Detail.vue b/lesingle-creation-frontend/src/views/public/works/Detail.vue
index 9bc2ba2..fb199fb 100644
--- a/lesingle-creation-frontend/src/views/public/works/Detail.vue
+++ b/lesingle-creation-frontend/src/views/public/works/Detail.vue
@@ -158,7 +158,7 @@
     </a-spin>
 
     <!-- 二次确认弹窗 -->
-    <a-modal v-model:open="confirmVisible" :title="confirmTitle" :ok-text="confirmOkText" cancel-text="取消"
+    <a-modal v-model:open="confirmVisible" :title="confirmTitle" :ok-text="confirmOkText" cancel-text="取消" centered
       :confirm-loading="actionLoading" @ok="handleConfirmOk" @cancel="handleConfirmCancel">
       <p>{{ confirmContent }}</p>
     </a-modal>