diff --git a/frontend/favicon.ico b/frontend/favicon.ico
new file mode 100644
index 0000000..f1c3b4f
Binary files /dev/null and b/frontend/favicon.ico differ
diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index 2b9ddd4..11c939d 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -2,6 +2,9 @@ server {
     listen 80;
     server_name localhost;
 
+    # 设置最大上传文件大小为10GB
+    client_max_body_size 10G;
+
     # 前端静态文件
     location / {
         root /usr/share/nginx/html;
@@ -18,9 +21,14 @@ server {
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        # 使用上游传递的协议，如果没有则使用当前协议
-        proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
+        # 修复：使用当前请求协议（http或https），适用于直接IP访问
+        proxy_set_header X-Forwarded-Proto $scheme;
         proxy_cache_bypass $http_upgrade;
+
+        # 增加超时时间支持大文件上传
+        proxy_connect_timeout 300;
+        proxy_send_timeout 300;
+        proxy_read_timeout 300;
     }
 
     # 分享链接重定向
@@ -29,6 +37,7 @@ server {
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
+        # 修复：使用当前请求协议（http或https），适用于直接IP访问
+        proxy_set_header X-Forwarded-Proto $scheme;
     }
 }