diff --git a/api/DTO/movie_start_dto.ts b/api/DTO/movie_start_dto.ts
index 72e621a..c0a47bc 100644
--- a/api/DTO/movie_start_dto.ts
+++ b/api/DTO/movie_start_dto.ts
@@ -349,6 +349,8 @@ export interface CreateMovieProjectV4Request {
   language: string;
   /** 画面比例（横/竖屏） */
   aspect_ratio: AspectRatioValue;
+  /** 扩展模式 */
+  expansion_mode: boolean;
   /** 是否是图生 */
   is_image_to_video: boolean;
   /** pcode编码 */
diff --git a/components/pages/create-video/CreateInput/VideoCreationForm.tsx b/components/pages/create-video/CreateInput/VideoCreationForm.tsx
index 9310014..053e4ce 100644
--- a/components/pages/create-video/CreateInput/VideoCreationForm.tsx
+++ b/components/pages/create-video/CreateInput/VideoCreationForm.tsx
@@ -187,12 +187,13 @@ export default function VideoCreationForm() {
             /** Build request parameters */
             const requestParams: CreateMovieProjectV4Request = {
                 script: inputText,
-                mode: configOptions.expansion_mode ? 'auto' : 'manual',
+                mode: configOptions.mode,
                 resolution: '720p',
                 language: configOptions.language,
                 aspect_ratio: configOptions.aspect_ratio,
+                expansion_mode: configOptions.expansion_mode,
                 is_image_to_video: photos.length > 0,
-                pcode: configOptions.pcode,
+                pcode: configOptions.pcode === 'portrait' ? '' : configOptions.pcode,
             };
 
             /** Add character briefs if exists */
diff --git a/components/pages/create-video/CreateInput/config-options.ts b/components/pages/create-video/CreateInput/config-options.ts
index fd94b1d..b8c6e8c 100644
--- a/components/pages/create-video/CreateInput/config-options.ts
+++ b/components/pages/create-video/CreateInput/config-options.ts
@@ -43,14 +43,16 @@ export interface ConfigOptions {
     videoDuration: VideoDurationValue;
     aspect_ratio: AspectRatioValue;
     pcode: PortraitAnimeValue;
+    mode: "auto" | "manual";
 }
 
 /** Default configuration */
 export const defaultConfig: ConfigOptions = {
     language: 'english',
-    expansion_mode: false,
+    expansion_mode: true,
     videoDuration: 'unlimited',
     aspect_ratio: 'VIDEO_ASPECT_RATIO_LANDSCAPE',
     pcode: 'portrait',
+    mode: 'auto',
 };