diff --git a/plugins/addon/theme_configurator/controller/UploadController.php b/plugins/addon/theme_configurator/controller/UploadController.php
index 8c86505..7a062ab 100644
--- a/plugins/addon/theme_configurator/controller/UploadController.php
+++ b/plugins/addon/theme_configurator/controller/UploadController.php
@@ -3,7 +3,6 @@ namespace addon\theme_configurator\controller;
 
 use app\event\controller\PluginAdminBaseController;
 use think\Response;
-use think\facade\Filesystem;
 
 /**
  * 后台上传控制器
@@ -30,33 +29,57 @@ class UploadController extends PluginAdminBaseController
                 ]);
             }
 
-            // 验证文件
-            $validate = [
-                'size' => 10 * 1024 * 1024, // 10MB
-                'ext'  => 'jpg,jpeg,png,gif,webp,svg',
-            ];
-
-            try {
-                validate($validate)->check(['file' => $file]);
-            } catch (\Exception $e) {
+            // 验证文件类型和大小
+            $fileExt = strtolower($file->extension());
+            $fileSize = $file->getSize();
+            
+            $allowedExts = ['jpg', 'jpeg', 'png', 'gif', 'webp', 'svg'];
+            $maxSize = 10 * 1024 * 1024; // 10MB
+            
+            if (!in_array($fileExt, $allowedExts)) {
                 return json([
                     'status' => 400,
-                    'msg'    => lang_plugins('upload_validate_failed') . ': ' . $e->getMessage(),
+                    'msg'    => lang_plugins('upload_validate_failed') . ': ' . '仅支持 jpg, jpeg, png, gif, webp, svg 格式',
+                ]);
+            }
+            
+            if ($fileSize > $maxSize) {
+                return json([
+                    'status' => 400,
+                    'msg'    => lang_plugins('upload_validate_failed') . ': ' . '文件大小不能超过 10MB',
                 ]);
             }
 
-            // 上传到本地服务器
-            $saveName = Filesystem::disk('public')->putFile('theme', $file);
+            // 构建保存路径
+            $uploadPath = root_path('public') . 'upload' . DIRECTORY_SEPARATOR . 'theme';
+            $dateDir = date('Ymd');
+            $savePath = $uploadPath . DIRECTORY_SEPARATOR . $dateDir;
             
-            if (!$saveName) {
+            // 创建目录
+            if (!is_dir($savePath)) {
+                if (!mkdir($savePath, 0755, true)) {
+                    return json([
+                        'status' => 400,
+                        'msg'    => lang_plugins('upload_save_failed') . ': 无法创建上传目录',
+                    ]);
+                }
+            }
+            
+            // 生成唯一文件名
+            $fileName = md5(uniqid() . microtime()) . '.' . $fileExt;
+            $fullPath = $savePath . DIRECTORY_SEPARATOR . $fileName;
+            
+            // 移动文件
+            if (!$file->move($savePath, $fileName)) {
                 return json([
                     'status' => 400,
                     'msg'    => lang_plugins('upload_save_failed'),
                 ]);
             }
-
-            // 构建完整的URL路径
-            $url = '/upload/' . str_replace('\\', '/', $saveName);
+            
+            // 构建URL路径
+            $saveName = 'theme/' . $dateDir . '/' . $fileName;
+            $url = '/upload/' . $saveName;
 
             return json([
                 'status' => 200,