diff --git a/app/common/service/WordpressSiteService.php b/app/common/service/WordpressSiteService.php
index 664c67b..f5f9102 100644
--- a/app/common/service/WordpressSiteService.php
+++ b/app/common/service/WordpressSiteService.php
@@ -826,15 +826,9 @@ class WordpressSiteService
         $pathInfo = pathinfo(parse_url($imageUrl, PHP_URL_PATH));
         $extension = strtolower($pathInfo['extension'] ?? 'jpg');
 
-        // 确定文件名和 Content-Type（使用原始格式）
+        // 确定文件名和 Content-Type（使用原始格式，不做webp转换）
         $filename = ($pathInfo['filename'] ?? 'image') . '.' . $extension;
         $contentType = 'image/' . ($extension === 'jpg' ? 'jpeg' : $extension);
-            $filename = ($pathInfo['filename'] ?? 'image') . '.webp';
-            $contentType = 'image/webp';
-        } else {
-            $filename = ($pathInfo['filename'] ?? 'image') . '.' . $extension;
-            $contentType = 'image/' . ($extension === 'jpg' ? 'jpeg' : $extension);
-        }
 
         $mediaUrl = $domain . '/wp-json/wp/v2/media';