diff --git a/frontend/admin/src/pages/PostCreatePage.vue b/frontend/admin/src/pages/PostCreatePage.vue
index b419c0c..11cc85b 100644
--- a/frontend/admin/src/pages/PostCreatePage.vue
+++ b/frontend/admin/src/pages/PostCreatePage.vue
@@ -286,7 +286,7 @@ const formatFileSize = (bytes) => {
                             <div class="mb-4">
                                 <Button label="添加更多媒体" icon="pi pi-plus" @click="openMediaDialog" outlined />
                             </div>
-                            <div class="grid grid-cols-1 md:grid-cols-3 gap-3">
+                            <div class="grid grid-cols-1 md:grid-cols-1 gap-3">
                                 <div v-for="media in post.selectedMedia" :key="media.id"
                                     class="relative border border-gray-200 rounded-md p-2 flex items-center">
                                     <div v-if="media.thumbnailUrl" class="flex-shrink-0 h-10 w-10 mr-3">