diff --git a/video-gen-api/app/schemas/hot_opening_replicate.py b/video-gen-api/app/schemas/hot_opening_replicate.py
index f06d5e5d..b3be0fd7 100644
--- a/video-gen-api/app/schemas/hot_opening_replicate.py
+++ b/video-gen-api/app/schemas/hot_opening_replicate.py
@@ -193,8 +193,8 @@ class HotOpeningTaskCreate(BaseModel):
 
     material_video_url: str = Field(..., min_length=1, description="素材视频链接，参考素材，1份。由项目已有上传接口返回，本接口不负责上传，不做后端素材校验")
     material_image_url: str = Field(..., min_length=1, description="素材图片链接，新产品图片，1份。由项目已有上传接口返回，本接口不负责上传，不做后端素材校验")
-    source_project_name: str = Field(..., min_length=1, max_length=120, description="视频素材内容项目名称")
-    target_project_name: str = Field(..., min_length=1, max_length=120, description="生成项目名称")
+    source_project_name: str = Field(..., min_length=1, max_length=20, description="视频素材内容项目名称")
+    target_project_name: str = Field(..., min_length=1, max_length=20, description="生成项目名称")
     core_content_point: str = Field(..., min_length=1, max_length=50, description="生成的项目核心内容点，最多50字")
     idempotency_key: str | None = Field(None, max_length=64, description="创建总任务幂等键。只用于 module_generation_projects，不用于 ChatGenerationTask")
 
@@ -224,8 +224,8 @@ class HotOpeningMaterialUpdateRequest(BaseModel):
 
     material_video_url: str | None = Field(None, min_length=1, description="素材视频链接，未传则沿用旧值")
     material_image_url: str | None = Field(None, min_length=1, description="素材图片链接，未传则沿用旧值")
-    source_project_name: str | None = Field(None, min_length=1, max_length=120, description="视频素材内容项目名称，未传则沿用旧值")
-    target_project_name: str | None = Field(None, min_length=1, max_length=120, description="生成项目名称，未传则沿用旧值")
+    source_project_name: str | None = Field(None, min_length=1, max_length=20, description="视频素材内容项目名称，未传则沿用旧值")
+    target_project_name: str | None = Field(None, min_length=1, max_length=20, description="生成项目名称，未传则沿用旧值")
     core_content_point: str | None = Field(None, min_length=1, max_length=50, description="生成项目核心内容点，最多50字，未传则沿用旧值")
 
     @field_validator("material_video_url", "material_image_url", "source_project_name", "target_project_name", "core_content_point", mode="before")
@@ -250,8 +250,8 @@ class HotOpeningStepUpdate(BaseModel):
 
     material_video_url: str | None = Field(None, description="修改第1步素材视频链接")
     material_image_url: str | None = Field(None, description="修改第1步素材图片链接")
-    source_project_name: str | None = Field(None, max_length=120, description="修改第1步视频素材内容项目名称")
-    target_project_name: str | None = Field(None, max_length=120, description="修改第1步生成项目名称")
+    source_project_name: str | None = Field(None, max_length=20, description="修改第1步视频素材内容项目名称")
+    target_project_name: str | None = Field(None, max_length=20, description="修改第1步生成项目名称")
     core_content_point: str | None = Field(None, max_length=50, description="修改第1步生成项目核心内容点，最多50字")
     prompt: str | None = Field(None, description="修改第2步图片提词或第4步视频最终提词")
     prompt_schema: dict[str, Any] | None = Field(None, description="修改第4步视频提词 JSON schema。只对视频提词步骤有意义")