diff --git a/config.py b/config.py
index c062d3f..c4576d8 100644
--- a/config.py
+++ b/config.py
@@ -3,6 +3,7 @@ import os
 class Config:
     # 基础配置
     SECRET_KEY = os.getenv("SECRET_KEY", "vision-ai-secret-key")
+    PUBLIC_BASE_URL = os.getenv("PUBLIC_BASE_URL", "https://860576.xyz").rstrip("/")
     
     # PostgreSQL 配置
     SQLALCHEMY_DATABASE_URI = "postgresql://user_xREpkJ:password_DZz8DQ@331002.xyz:2022/ai_vision"
diff --git a/services/file_service.py b/services/file_service.py
index ffc3c9c..adb20d7 100644
--- a/services/file_service.py
+++ b/services/file_service.py
@@ -19,11 +19,9 @@ def handle_file_uploads(files):
             f, Config.MINIO["bucket"], filename,
             ExtraArgs={"ContentType": f.content_type}
         )
-        img_urls.append(f"{Config.MINIO['public_url']}{quote(filename)}")
-        endpoint = Config.MINIO["endpoint"].rstrip("/")
-        bucket = quote(Config.MINIO["bucket"], safe="")
-        object_key = quote(filename, safe="/")
-        download_urls.append(f"{endpoint}/{bucket}/{object_key}")
+        public_path = f"{Config.MINIO['public_url'].rstrip('/')}/{quote(filename)}"
+        img_urls.append(public_path)
+        download_urls.append(f"{Config.PUBLIC_BASE_URL}{public_path}")
     return img_urls, download_urls
 
 def get_remote_file_stream(url):