diff --git a/frontend/nginx.uat.conf b/frontend/nginx.uat.conf
index fb55ea6..7e422b5 100644
--- a/frontend/nginx.uat.conf
+++ b/frontend/nginx.uat.conf
@@ -60,8 +60,8 @@ server {
         proxy_set_header X-Forwarded-Proto $scheme;
     }
 
-    # 静态资源缓存
-    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+    # 静态资源缓存（排除 /api/ 路径，避免拦截 PB 文件请求）
+    location ~* ^/(?!api/|voice-api/).*\.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot|webp)$ {
         expires 1y;
         add_header Cache-Control "public, immutable";
     }
diff --git a/frontend/src/components/game/AddGameDialog.vue b/frontend/src/components/game/AddGameDialog.vue
index 4b3588c..9347764 100644
--- a/frontend/src/components/game/AddGameDialog.vue
+++ b/frontend/src/components/game/AddGameDialog.vue
@@ -5,7 +5,7 @@ import type { GamePlatform } from '@/types'
 import { ElMessage } from 'element-plus'
 import { getAllPlatforms } from '@/api/games'
 import { Plus } from '@element-plus/icons-vue'
-import type { UploadFile } from 'element-plus'
+import type { UploadFile, UploadInstance } from 'element-plus'
 
 const props = defineProps<{
   modelValue: boolean
@@ -27,6 +27,7 @@ const platform = ref<GamePlatform | ''>('')
 const tagsInput = ref('')
 const coverFile = ref<File | null>(null)
 const coverPreview = ref('')
+const uploadRef = ref<UploadInstance>()
 const loading = ref(false)
 const platforms = getAllPlatforms()
 
@@ -62,6 +63,7 @@ async function handleSubmit() {
     tagsInput.value = ''
     coverFile.value = null
     coverPreview.value = ''
+    uploadRef.value?.clearFiles()
     emit('created')
     visible.value = false
   } catch (error: any) {
@@ -92,6 +94,7 @@ async function handleSubmit() {
       <div class="field">
         <label>封面图</label>
         <el-upload
+          ref="uploadRef"
           :auto-upload="false"
           :limit="1"
           accept="image/*"