diff --git a/internal/cmd/cmd.go b/internal/cmd/cmd.go
index 9a48fcd..5ca5c39 100644
--- a/internal/cmd/cmd.go
+++ b/internal/cmd/cmd.go
@@ -539,6 +539,11 @@ func registerRelayRoutes(server *ghttp.Server) {
 		group.POST("/moderations", relay.HandleModerations)
 		group.POST("/images/edits", relay.HandleImagesEdits)
 		group.GET("/realtime", relay.HandleRealtime)
+		// OpenAI Videos 协议端点（官方 SDK 兼容，对接第三方视频模型）
+		group.POST("/videos", relay.HandleVideoCreate)
+		group.GET("/videos/{video_id}", relay.HandleVideoRetrieve)
+		group.GET("/videos/{video_id}/content", relay.HandleVideoContent)
+		group.DELETE("/videos/{video_id}", relay.HandleVideoDelete)
 	})
 
 	// Gemini 兼容路由（/v1beta/models/{model}:generateContent）
diff --git a/internal/dao/internal/sys_admin_role_perms.go b/internal/dao/internal/sys_admin_role_perms.go
index eecd622..17d09d4 100644
--- a/internal/dao/internal/sys_admin_role_perms.go
+++ b/internal/dao/internal/sys_admin_role_perms.go
@@ -23,7 +23,7 @@ type SysAdminRolePermsDao struct {
 type SysAdminRolePermsColumns struct {
 	Id              string // 主键ID
 	AdminUserId     string // 关联的管理员用户ID
-	PermissionPoint string // 权限点标识（如 tenant:create、channel:edit）
+	PermissionPoint string // 特批的权限点标识（独立于角色，角色禁用不影响特批）
 	CreatedAt       string // 创建时间
 	UpdatedAt       string // 更新时间
 }
diff --git a/internal/dao/internal/tsk_model_tasks.go b/internal/dao/internal/tsk_model_tasks.go
index 53660ff..a725f94 100644
--- a/internal/dao/internal/tsk_model_tasks.go
+++ b/internal/dao/internal/tsk_model_tasks.go
@@ -46,6 +46,8 @@ type TskModelTasksColumns struct {
 	CreatedAt       string // 记录创建时间
 	UpdatedAt       string // 记录更新时间
 	RequestId       string // 任务提交时的原始请求 ID（req_xxxxx），关联 aud_request_logs.request_id
+	Deleted         string // 软删除标记：true 表示已被客户端删除，查询/下载按不存在处理（计费与审计记录保留）
+	DeletedAt       string // 软删除时间
 }
 
 // tskModelTasksColumns holds the columns for the table tsk_model_tasks.
@@ -75,6 +77,8 @@ var tskModelTasksColumns = TskModelTasksColumns{
 	CreatedAt:       "created_at",
 	UpdatedAt:       "updated_at",
 	RequestId:       "request_id",
+	Deleted:         "deleted",
+	DeletedAt:       "deleted_at",
 }
 
 // NewTskModelTasksDao creates and returns a new DAO object for table data access.
diff --git a/internal/handler/relay/videos.go b/internal/handler/relay/videos.go
new file mode 100644
index 0000000..055ccad
--- /dev/null
+++ b/internal/handler/relay/videos.go
@@ -0,0 +1,165 @@
+package relay
+
+import (
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/net/ghttp"
+
+	"github.com/qianfree/team-api/internal/logic/monitor"
+	"github.com/qianfree/team-api/internal/middleware"
+	relay_constant "github.com/qianfree/team-api/relay/constant"
+	relay_handler "github.com/qianfree/team-api/relay/handler"
+)
+
+// OpenAI Videos 协议入站胶水（/v1/videos 端点）：
+// 创建请求在此完成 multipart/JSON 解析与通用任务体转换，复用任务提交管线
+// （selectTaskChannel 渠道调度 + relay_handler.HandleTaskSubmit 计费/提交/落库）；
+// 查询/删除/内容下载直连 relay_handler 的 Videos 处理器。
+
+// HandleVideoCreate 处理 POST /v1/videos（创建视频生成任务）
+func HandleVideoCreate(r *ghttp.Request) {
+	body := r.GetBody()
+	if len(body) == 0 {
+		r.Response.WriteStatus(400, g.Map{
+			"error": g.Map{"type": "invalid_request_error", "message": "request body is empty"},
+		})
+		return
+	}
+
+	// OpenAI Videos 请求（multipart/JSON）→ 归一结构（官方 SDK 一律 multipart，必须支持）
+	req, taskErr := relay_handler.ParseVideosCreateRequest(body, r.Header.Get("Content-Type"))
+	if taskErr != nil {
+		writeVideosError(r, taskErr.StatusCode, taskErr.Message, taskErr.ErrCode)
+		return
+	}
+	if taskErr := relay_handler.ValidateVideosCreateRequest(req); taskErr != nil {
+		writeVideosError(r, taskErr.StatusCode, taskErr.Message, taskErr.ErrCode)
+		return
+	}
+
+	// 转成任务框架通用请求体（适配器消费 model/prompt/seconds/metadata）
+	taskBody, err := relay_handler.BuildVideosTaskBody(req)
+	if err != nil {
+		writeVideosError(r, 500, "build task body failed", "")
+		return
+	}
+
+	rc := &relay_handler.TaskRelayContext{
+		TenantID:        middleware.GetTenantID(r.Context()),
+		UserID:          middleware.GetUserID(r.Context()),
+		ApiKeyID:        middleware.GetApiKeyID(r.Context()),
+		ProjectID:       middleware.GetProjectID(r.Context()),
+		RequestID:       r.GetCtxVar("RequestId").String(),
+		Writer:          r.Response.Writer,
+		Scope:           r.GetCtxVar("ApiKeyScope").String(),
+		ClientIP:        r.GetClientIp(),
+		KeyRateLimitQps: r.GetCtxVar(middleware.CtxKeyApiKeyRateLimitQps).Int(),
+		KeyConcurrency:  r.GetCtxVar(middleware.CtxKeyApiKeyRateLimitConcurrency).Int(),
+		KeyIpWhitelist:  r.GetCtxVar(middleware.CtxKeyApiKeyIpWhitelist).String(),
+		KeyTotalQuota:   r.GetCtxVar(middleware.CtxKeyApiKeyTotalQuota).Float64(),
+		KeyUsedQuota:    r.GetCtxVar(middleware.CtxKeyApiKeyUsedQuota).Float64(),
+		// OpenAI Videos 协议：官方 Video 对象响应 + video_ 前缀 ID + 请求回显落库
+		Protocol:    "openai_videos",
+		RelayMode:   int(relay_constant.RelayModeVideos),
+		RequestEcho: relay_handler.NewVideosRequestEcho(req),
+	}
+
+	// 选择渠道（模型权限校验 + 调度引擎，与 /v1/video/generations 同一链路）
+	channelMeta, err := selectTaskChannel(r, taskBody)
+	if err != nil {
+		writeTaskChannelSelectionError(r, err)
+		return
+	}
+
+	// 响应捕获用于审计（对齐 HandleTaskSubmit 模式）
+	capture := NewResponseCaptureWriter(r.Response.Writer)
+	rc.Writer = capture
+
+	registerAsyncTask(rc.RequestID, rc.TenantID, rc.UserID, rc.ProjectID, req.Model, channelMeta, r.URL.Path)
+
+	relay_handler.HandleTaskSubmit(
+		r.Context(), taskBody, r.URL.Path, r.Header,
+		rc, taskDataProvider, taskBillingProvider, channelMeta,
+	)
+
+	// 提交成功后切换为任务 ID 跟踪（任务生命周期远超 HTTP 请求）
+	if rc.TaskID != "" {
+		monitor.SwitchToTaskID(rc.RequestID, rc.TaskID)
+	} else {
+		monitor.UnregisterRequest(rc.RequestID)
+	}
+
+	rc.ForwardingTrace = buildTaskForwardingTrace(r.URL.Path, taskBody, channelMeta, capture.StatusCode())
+	go recordTaskSubmitAudit(r, rc, capture, taskBody)
+}
+
+// HandleVideoRetrieve 处理 GET /v1/videos/{video_id}（查询视频任务）
+func HandleVideoRetrieve(r *ghttp.Request) {
+	videoID := r.Get("video_id").String()
+	if videoID == "" {
+		writeVideosError(r, 400, "video id is required", "")
+		return
+	}
+
+	rc := &relay_handler.TaskRelayContext{
+		TenantID:  middleware.GetTenantID(r.Context()),
+		UserID:    middleware.GetUserID(r.Context()),
+		ApiKeyID:  middleware.GetApiKeyID(r.Context()),
+		ProjectID: middleware.GetProjectID(r.Context()),
+		RequestID: r.GetCtxVar("RequestId").String(),
+		Writer:    r.Response.Writer,
+	}
+
+	relay_handler.HandleVideosRetrieve(r.Context(), videoID, rc, taskDataProvider)
+}
+
+// HandleVideoDelete 处理 DELETE /v1/videos/{video_id}（删除视频任务）
+func HandleVideoDelete(r *ghttp.Request) {
+	videoID := r.Get("video_id").String()
+	if videoID == "" {
+		writeVideosError(r, 400, "video id is required", "")
+		return
+	}
+
+	rc := &relay_handler.TaskRelayContext{
+		TenantID:  middleware.GetTenantID(r.Context()),
+		UserID:    middleware.GetUserID(r.Context()),
+		ApiKeyID:  middleware.GetApiKeyID(r.Context()),
+		ProjectID: middleware.GetProjectID(r.Context()),
+		RequestID: r.GetCtxVar("RequestId").String(),
+		Writer:    r.Response.Writer,
+	}
+
+	relay_handler.HandleVideosDelete(r.Context(), videoID, rc, taskDataProvider)
+}
+
+// HandleVideoContent 处理 GET /v1/videos/{video_id}/content（下载成品视频）
+func HandleVideoContent(r *ghttp.Request) {
+	videoID := r.Get("video_id").String()
+	if videoID == "" {
+		writeVideosError(r, 400, "video id is required", "")
+		return
+	}
+
+	rc := &relay_handler.TaskRelayContext{
+		TenantID:  middleware.GetTenantID(r.Context()),
+		UserID:    middleware.GetUserID(r.Context()),
+		ApiKeyID:  middleware.GetApiKeyID(r.Context()),
+		ProjectID: middleware.GetProjectID(r.Context()),
+		RequestID: r.GetCtxVar("RequestId").String(),
+		Writer:    r.Response.Writer,
+	}
+
+	relay_handler.HandleVideosContent(r.Context(), videoID, r.Get("variant", "video").String(), rc, taskDataProvider)
+}
+
+// writeVideosError OpenAI 官方错误格式输出（与 writeTaskError 同构，供胶水层解析阶段使用）
+func writeVideosError(r *ghttp.Request, statusCode int, message, code string) {
+	errObj := g.Map{
+		"type":    "invalid_request_error",
+		"message": message,
+	}
+	if code != "" {
+		errObj["code"] = code
+	}
+	r.Response.WriteStatus(statusCode, g.Map{"error": errObj})
+}
diff --git a/internal/logic/docs/openapi.go b/internal/logic/docs/openapi.go
index f8c92a8..aec9279 100644
--- a/internal/logic/docs/openapi.go
+++ b/internal/logic/docs/openapi.go
@@ -202,6 +202,115 @@ func buildOpenAPISpec(ctx context.Context) map[string]any {
 					},
 				},
 			},
+			"/v1/videos": map[string]any{
+				"post": map[string]any{
+					"summary":     "Create Video",
+					"description": "创建视频生成任务（OpenAI Videos 协议，兼容 openai-python / openai-node SDK 的 client.videos.create）。请求体支持 multipart/form-data（官方 SDK 形态，input_reference 可为文件 part）与 application/json 两种编码。返回官方 Video 对象（status: queued），轮询 GET /v1/videos/{video_id} 直到 completed，再经 GET /v1/videos/{video_id}/content 获取视频二进制。",
+					"operationId": "createVideo",
+					"security":    []map[string]any{{"BearerAuth": []any{}}},
+					"requestBody": map[string]any{
+						"required": true,
+						"content": map[string]any{
+							"multipart/form-data": map[string]any{
+								"schema": map[string]any{
+									"type":     "object",
+									"required": []string{"model", "prompt"},
+									"properties": map[string]any{
+										"model":           map[string]any{"type": "string", "example": "kling-v2-master"},
+										"prompt":          map[string]any{"type": "string"},
+										"seconds":         map[string]any{"type": "string", "enum": []string{"4", "8", "12"}, "default": "4"},
+										"size":            map[string]any{"type": "string", "enum": []string{"720x1280", "1280x720", "1024x1792", "1792x1024"}, "default": "720x1280"},
+										"input_reference": map[string]any{"type": "string", "format": "binary", "description": "可选参考图（图生视频），文件上传或 {\"image_url\": \"...\"} 引用对象；file_id 形态不支持"},
+									},
+								},
+							},
+							"application/json": map[string]any{
+								"schema": map[string]any{
+									"type":     "object",
+									"required": []string{"model", "prompt"},
+									"properties": map[string]any{
+										"model":           map[string]any{"type": "string"},
+										"prompt":          map[string]any{"type": "string"},
+										"seconds":         map[string]any{"type": "string"},
+										"size":            map[string]any{"type": "string"},
+										"input_reference": map[string]any{"type": "object", "properties": map[string]any{"image_url": map[string]any{"type": "string"}}},
+									},
+								},
+							},
+						},
+					},
+					"responses": map[string]any{
+						"200": map[string]any{"description": "Video 对象（object: video，status: queued）"},
+					},
+				},
+			},
+			"/v1/videos/{video_id}": map[string]any{
+				"get": map[string]any{
+					"summary":     "Retrieve Video",
+					"description": "查询视频生成任务，返回官方 Video 对象。status: queued / in_progress / completed / failed；非终态响应携带 openai-poll-after-ms 轮询间隔建议头。生成失败以 status=failed + error 对象表达（HTTP 仍为 200）。",
+					"operationId": "retrieveVideo",
+					"security":    []map[string]any{{"BearerAuth": []any{}}},
+					"parameters": []map[string]any{
+						{
+							"name":     "video_id",
+							"in":       "path",
+							"required": true,
+							"schema":   map[string]any{"type": "string"},
+						},
+					},
+					"responses": map[string]any{
+						"200": map[string]any{"description": "Video 对象（含 progress 百分比、completed_at、失败时的 error）"},
+						"404": map[string]any{"description": "视频不存在或已被删除"},
+					},
+				},
+				"delete": map[string]any{
+					"summary":     "Delete Video",
+					"description": "删除已完成或已失败的视频任务（软删除，计费与审计记录保留），删除后查询与下载均返回 404。进行中的任务不可删除。",
+					"operationId": "deleteVideo",
+					"security":    []map[string]any{{"BearerAuth": []any{}}},
+					"parameters": []map[string]any{
+						{
+							"name":     "video_id",
+							"in":       "path",
+							"required": true,
+							"schema":   map[string]any{"type": "string"},
+						},
+					},
+					"responses": map[string]any{
+						"200": map[string]any{"description": "删除确认（object: video.deleted，deleted: true）"},
+						"400": map[string]any{"description": "任务非终态或计费未结算，不可删除"},
+						"404": map[string]any{"description": "视频不存在或已被删除"},
+					},
+				},
+			},
+			"/v1/videos/{video_id}/content": map[string]any{
+				"get": map[string]any{
+					"summary":     "Download Video Content",
+					"description": "下载已生成完成的视频二进制流（mp4）。仅 status=completed 的任务可下载；variant 仅支持默认 video（thumbnail / spritesheet 暂不支持）。",
+					"operationId": "downloadVideoContent",
+					"security":    []map[string]any{{"BearerAuth": []any{}}},
+					"parameters": []map[string]any{
+						{
+							"name":     "video_id",
+							"in":       "path",
+							"required": true,
+							"schema":   map[string]any{"type": "string"},
+						},
+						{
+							"name":     "variant",
+							"in":       "query",
+							"required": false,
+							"schema":   map[string]any{"type": "string", "enum": []string{"video"}, "default": "video"},
+						},
+					},
+					"responses": map[string]any{
+						"200": map[string]any{"description": "视频二进制流（video/mp4）"},
+						"400": map[string]any{"description": "任务未完成或无可用内容"},
+						"404": map[string]any{"description": "视频不存在或已被删除"},
+						"502": map[string]any{"description": "上游内容拉取失败"},
+					},
+				},
+			},
 			"/v1/messages": map[string]any{
 				"post": map[string]any{
 					"summary":     "Claude Messages",
diff --git a/internal/logic/task/async_provider.go b/internal/logic/task/async_provider.go
index 1b584a9..7183dba 100644
--- a/internal/logic/task/async_provider.go
+++ b/internal/logic/task/async_provider.go
@@ -53,6 +53,8 @@ func asyncTaskFromEntity(row *entity.TskModelTasks) *common.AsyncTask {
 		FinishTime:      timePtrFromGTime(row.FinishTime),
 		CreatedAt:       timeFromGTime(row.CreatedAt),
 		UpdatedAt:       timeFromGTime(row.UpdatedAt),
+		Deleted:         row.Deleted,
+		DeletedAt:       timePtrFromGTime(row.DeletedAt),
 	}
 }
 
@@ -187,11 +189,12 @@ func (p *AsyncProvider) UpdateTaskCAS(ctx context.Context, task *common.AsyncTas
 	return nil
 }
 
-// GetTaskByPublicID 根据公开任务 ID 查询
+// GetTaskByPublicID 根据公开任务 ID 查询（软删除的任务视为不存在）
 func (p *AsyncProvider) GetTaskByPublicID(ctx context.Context, publicTaskID string) (*common.AsyncTask, error) {
 	var row *entity.TskModelTasks
 	err := dao.TskModelTasks.Ctx(ctx).
 		Where("public_task_id", publicTaskID).
+		Where("deleted", false).
 		Scan(&row)
 	if err != nil {
 		return nil, gerror.Wrapf(err, "query async task failed: public_id=%s", publicTaskID)
@@ -199,13 +202,14 @@ func (p *AsyncProvider) GetTaskByPublicID(ctx context.Context, publicTaskID stri
 	return asyncTaskFromEntity(row), nil
 }
 
-// GetTaskByPublicIDAndUser 根据公开任务 ID + 用户 ID 查询
+// GetTaskByPublicIDAndUser 根据公开任务 ID + 用户 ID 查询（软删除的任务视为不存在）
 func (p *AsyncProvider) GetTaskByPublicIDAndUser(ctx context.Context, publicTaskID string, userID int64, tenantID int64) (*common.AsyncTask, error) {
 	var row *entity.TskModelTasks
 	err := dao.TskModelTasks.Ctx(ctx).
 		Where("public_task_id", publicTaskID).
 		Where("user_id", userID).
 		Where("tenant_id", tenantID).
+		Where("deleted", false).
 		Scan(&row)
 	if err != nil {
 		return nil, gerror.Wrapf(err, "query async task failed: public_id=%s user_id=%d", publicTaskID, userID)
@@ -262,6 +266,30 @@ func (p *AsyncProvider) GetUnsettledTasks(ctx context.Context, limit int) ([]*co
 	return asyncTasksFromEntities(rows), nil
 }
 
+// SoftDeleteTask 软删除任务（DELETE /v1/videos/{id}）。
+// 仅标记 deleted，不动 status/计费字段：调用方保证只有终态且已结算的任务可删，
+// 轮询 cron 的 GetNonTerminalTasks/GetUnsettledTasks 查询不感知 deleted 列。
+func (p *AsyncProvider) SoftDeleteTask(ctx context.Context, task *common.AsyncTask) error {
+	result, err := dao.TskModelTasks.Ctx(ctx).
+		Where("id", task.ID).
+		Where("tenant_id", task.TenantID).
+		Update(map[string]any{
+			"deleted":    true,
+			"deleted_at": gtime.Now(),
+			"result_url": "", // 清掉成品直链，避免软删后内部路径仍可寻址
+			"updated_at": time.Now(),
+		})
+	if err != nil {
+		return gerror.Wrapf(err, "soft delete async task failed: id=%d", task.ID)
+	}
+	rows, _ := result.RowsAffected()
+	if rows == 0 {
+		return fmt.Errorf("soft delete no rows affected: id=%d", task.ID)
+	}
+	g.Log().Infof(ctx, "[AsyncProvider] SoftDeleteTask: public_id=%s, tenant=%d", task.PublicTaskID, task.TenantID)
+	return nil
+}
+
 // GetChannelByID 获取渠道基本信息（含从 chn_channel_keys 解密的 API Key）
 func (p *AsyncProvider) GetChannelByID(ctx context.Context, channelID int64) (*common.ChannelBasicInfo, error) {
 	var row *struct {
diff --git a/internal/model/do/sys_admin_role_perms.go b/internal/model/do/sys_admin_role_perms.go
index 9fb1ad3..865d548 100644
--- a/internal/model/do/sys_admin_role_perms.go
+++ b/internal/model/do/sys_admin_role_perms.go
@@ -14,7 +14,7 @@ type SysAdminRolePerms struct {
 	g.Meta          `orm:"table:sys_admin_role_perms, do:true"`
 	Id              any         // 主键ID
 	AdminUserId     any         // 关联的管理员用户ID
-	PermissionPoint any         // 权限点标识（如 tenant:create、channel:edit）
+	PermissionPoint any         // 特批的权限点标识（独立于角色，角色禁用不影响特批）
 	CreatedAt       *gtime.Time // 创建时间
 	UpdatedAt       *gtime.Time // 更新时间
 }
diff --git a/internal/model/do/tsk_model_tasks.go b/internal/model/do/tsk_model_tasks.go
index 0766f75..3542625 100644
--- a/internal/model/do/tsk_model_tasks.go
+++ b/internal/model/do/tsk_model_tasks.go
@@ -37,4 +37,6 @@ type TskModelTasks struct {
 	CreatedAt       *gtime.Time // 记录创建时间
 	UpdatedAt       *gtime.Time // 记录更新时间
 	RequestId       any         // 任务提交时的原始请求 ID（req_xxxxx），关联 aud_request_logs.request_id
+	Deleted         any         // 软删除标记：true 表示已被客户端删除，查询/下载按不存在处理（计费与审计记录保留）
+	DeletedAt       *gtime.Time // 软删除时间
 }
diff --git a/internal/model/entity/sys_admin_role_perms.go b/internal/model/entity/sys_admin_role_perms.go
index ed4cda1..ebbb197 100644
--- a/internal/model/entity/sys_admin_role_perms.go
+++ b/internal/model/entity/sys_admin_role_perms.go
@@ -10,9 +10,9 @@ import (
 
 // SysAdminRolePerms is the golang structure for table sys_admin_role_perms.
 type SysAdminRolePerms struct {
-	Id              int64       `json:"id"               orm:"id"               description:"主键ID"`                                // 主键ID
-	AdminUserId     int64       `json:"admin_user_id"    orm:"admin_user_id"    description:"关联的管理员用户ID"`                          // 关联的管理员用户ID
-	PermissionPoint string      `json:"permission_point" orm:"permission_point" description:"权限点标识（如 tenant:create、channel:edit）"` // 权限点标识（如 tenant:create、channel:edit）
-	CreatedAt       *gtime.Time `json:"created_at"       orm:"created_at"       description:"创建时间"`                                // 创建时间
-	UpdatedAt       *gtime.Time `json:"updated_at"       orm:"updated_at"       description:"更新时间"`                                // 更新时间
+	Id              int64       `json:"id"               orm:"id"               description:"主键ID"`                      // 主键ID
+	AdminUserId     int64       `json:"admin_user_id"    orm:"admin_user_id"    description:"关联的管理员用户ID"`                // 关联的管理员用户ID
+	PermissionPoint string      `json:"permission_point" orm:"permission_point" description:"特批的权限点标识（独立于角色，角色禁用不影响特批）"` // 特批的权限点标识（独立于角色，角色禁用不影响特批）
+	CreatedAt       *gtime.Time `json:"created_at"       orm:"created_at"       description:"创建时间"`                      // 创建时间
+	UpdatedAt       *gtime.Time `json:"updated_at"       orm:"updated_at"       description:"更新时间"`                      // 更新时间
 }
diff --git a/internal/model/entity/tsk_model_tasks.go b/internal/model/entity/tsk_model_tasks.go
index 2a51b6d..2a5c7f4 100644
--- a/internal/model/entity/tsk_model_tasks.go
+++ b/internal/model/entity/tsk_model_tasks.go
@@ -36,4 +36,6 @@ type TskModelTasks struct {
 	CreatedAt       *gtime.Time     `json:"created_at"        orm:"created_at"        description:"记录创建时间"`                                                                 // 记录创建时间
 	UpdatedAt       *gtime.Time     `json:"updated_at"        orm:"updated_at"        description:"记录更新时间"`                                                                 // 记录更新时间
 	RequestId       string          `json:"request_id"        orm:"request_id"        description:"任务提交时的原始请求 ID（req_xxxxx），关联 aud_request_logs.request_id"`                // 任务提交时的原始请求 ID（req_xxxxx），关联 aud_request_logs.request_id
+	Deleted         bool            `json:"deleted"           orm:"deleted"           description:"软删除标记：true 表示已被客户端删除，查询/下载按不存在处理（计费与审计记录保留）"`                            // 软删除标记：true 表示已被客户端删除，查询/下载按不存在处理（计费与审计记录保留）
+	DeletedAt       *gtime.Time     `json:"deleted_at"        orm:"deleted_at"        description:"软删除时间"`                                                                  // 软删除时间
 }
diff --git a/relay/common/task_provider.go b/relay/common/task_provider.go
index 29c7770..405277f 100644
--- a/relay/common/task_provider.go
+++ b/relay/common/task_provider.go
@@ -25,6 +25,10 @@ type TaskDataProvider interface {
 	// GetTaskByPublicIDAndUser 根据公开任务 ID + 用户 ID 查询（客户端查询）
 	GetTaskByPublicIDAndUser(ctx context.Context, publicTaskID string, userID int64, tenantID int64) (*AsyncTask, error)
 
+	// SoftDeleteTask 软删除任务（DELETE /v1/videos/{id}）：置 deleted 标记，
+	// 计费与审计记录保留，后续客户端查询按不存在处理
+	SoftDeleteTask(ctx context.Context, task *AsyncTask) error
+
 	// GetNonTerminalTasks 获取所有非终态任务（轮询用）
 	GetNonTerminalTasks(ctx context.Context, limit int) ([]*AsyncTask, error)
 
@@ -74,6 +78,10 @@ type AsyncTask struct {
 	FinishTime *time.Time `json:"finish_time,omitempty"`
 	CreatedAt  time.Time  `json:"created_at"`
 	UpdatedAt  time.Time  `json:"updated_at"`
+
+	// 软删除标记（DELETE /v1/videos/{id}）：true 后客户端查询/下载按 404 处理
+	Deleted   bool       `json:"deleted,omitempty"`
+	DeletedAt *time.Time `json:"deleted_at,omitempty"`
 }
 
 // ChannelBasicInfo 渠道基本信息（轮询时查询）
diff --git a/relay/constant/relay_mode.go b/relay/constant/relay_mode.go
index 46e1ee4..0a8493e 100644
--- a/relay/constant/relay_mode.go
+++ b/relay/constant/relay_mode.go
@@ -31,6 +31,7 @@ const (
 	RelayModeMjFetch          // GET  /mj/task/:id/fetch
 	RelayModeMjImage          // GET  /mj/image/:id
 	RelayModeResponsesCompact // POST /v1/responses/compact
+	RelayModeVideos           // OpenAI Videos 协议 /v1/videos（创建/查询/删除/内容下载）
 )
 
 // Path2RelayMode 根据请求路径判断 RelayMode
@@ -101,6 +102,8 @@ func Path2RelayMode(path string) RelayMode {
 		result = RelayModeVideoGenerations
 	case strings.Contains(path, "/video/generations/"):
 		result = RelayModeVideoFetch
+	case strings.HasSuffix(path, "/videos"), strings.Contains(path, "/videos/"):
+		result = RelayModeVideos
 	case strings.HasSuffix(path, "/moderations"):
 		result = RelayModeModerations
 	default:
@@ -151,6 +154,8 @@ func (m RelayMode) String() string {
 		return "moderations"
 	case RelayModeImagesEdits:
 		return "images_edits"
+	case RelayModeVideos:
+		return "videos"
 	case RelayModeMjSubmit:
 		return "mj_submit"
 	case RelayModeMjFetch:
diff --git a/relay/handler/task_handler.go b/relay/handler/task_handler.go
index ae180ff..ff24a66 100644
--- a/relay/handler/task_handler.go
+++ b/relay/handler/task_handler.go
@@ -44,6 +44,16 @@ type TaskRelayContext struct {
 	KeyTotalQuota   float64
 	KeyUsedQuota    float64
 	ForwardingTrace *common.ForwardingTrace
+
+	// Protocol 入站协议标识："" 默认（legacy 任务响应格式，task_ 前缀 ID）；
+	// videosProtocolOpenAI 切换为 OpenAI Videos 协议（官方 Video 对象响应，video_ 前缀 ID）。
+	Protocol string
+	// RelayMode 任务 relay 模式：0 = 默认 RelayModeVideoGenerations（现有端点），
+	// OpenAI Videos 入站传 RelayModeVideos 以区分审计与监控统计。
+	RelayMode int
+	// RequestEcho 协议层请求回显（OpenAI Videos 的 prompt/seconds/size），
+	// 提交时随 PrivateData 落库，retrieve 时回显给客户端；nil = 无回显。
+	RequestEcho any
 }
 
 func checkTaskIPWhitelist(whitelist string, clientIP string) bool {
@@ -154,13 +164,17 @@ func HandleTaskSubmit(
 	g.Log().Debugf(ctx, "HandleTaskSubmit: modelName=%s, platform=%s, channelID=%d, channelType=%d, baseURL=%s, upstreamModel=%s", modelName, platform, channelMeta.ChannelID, channelMeta.ChannelType, channelMeta.BaseURL, channelMeta.UpstreamModelName)
 
 	// 4. 构建 RelayInfo
+	relayMode := rc.RelayMode
+	if relayMode == 0 {
+		relayMode = int(constant.RelayModeVideoGenerations)
+	}
 	info := &common.RelayInfo{
 		Context:         ctx,
 		TenantID:        rc.TenantID,
 		UserID:          rc.UserID,
 		ApiKeyID:        rc.ApiKeyID,
 		RequestID:       rc.RequestID,
-		RelayMode:       int(constant.RelayModeVideoGenerations),
+		RelayMode:       relayMode,
 		OriginModelName: modelName,
 		RequestURLPath:  path,
 		RequestHeaders:  headers,
@@ -259,11 +273,14 @@ func HandleTaskSubmit(
 		}
 	}
 
-	// 10. 生成公开任务 ID 并创建记录
+	// 10. 生成公开任务 ID 并创建记录（OpenAI Videos 协议用 video_ 前缀对齐官方形态）
 	publicTaskID := generatePublicTaskID()
+	if rc.Protocol == videosProtocolOpenAI {
+		publicTaskID = generatePublicTaskIDWithPrefix("video")
+	}
 	now := time.Now()
 
-	privateData, _ := json.Marshal(map[string]any{
+	privateDataMap := map[string]any{
 		"upstream_task_id": upstreamTaskID,
 		"task_type":        platform,
 		"billing_context": map[string]any{
@@ -274,7 +291,11 @@ func HandleTaskSubmit(
 			// 进而 Ratios 也读不出、轮询判为「invalid private data」。故此处显式转 float64。
 			"pre_deduct": preDeductAmount.InexactFloat64(),
 		},
-	})
+	}
+	if rc.RequestEcho != nil {
+		privateDataMap["request_echo"] = rc.RequestEcho
+	}
+	privateData, _ := json.Marshal(privateDataMap)
 
 	task := &common.AsyncTask{
 		PublicTaskID:    publicTaskID,
@@ -307,7 +328,11 @@ func HandleTaskSubmit(
 	// 设置 TaskID 供外层审计使用
 	rc.TaskID = publicTaskID
 
-	// 11. 返回响应
+	// 11. 返回响应（OpenAI Videos 协议返回官方 Video 对象，legacy 保持原格式）
+	if rc.Protocol == videosProtocolOpenAI {
+		writeVideosSubmitResponse(rc.Writer, publicTaskID, modelName, now, rc.RequestEcho)
+		return
+	}
 	respBody := map[string]any{
 		"id":         publicTaskID,
 		"status":     "SUBMITTED",
@@ -410,6 +435,11 @@ func generatePublicTaskID() string {
 	return fmt.Sprintf("task_%s", randomHex(32))
 }
 
+// generatePublicTaskIDWithPrefix 生成带指定前缀的公开任务 ID（如 OpenAI Videos 协议的 video_ 前缀）
+func generatePublicTaskIDWithPrefix(prefix string) string {
+	return fmt.Sprintf("%s_%s", prefix, randomHex(32))
+}
+
 func randomHex(n int) string {
 	b := make([]byte, (n+1)/2)
 	if _, err := rand.Read(b); err != nil {
diff --git a/relay/handler/videos.go b/relay/handler/videos.go
new file mode 100644
index 0000000..a221022
--- /dev/null
+++ b/relay/handler/videos.go
@@ -0,0 +1,305 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/gogf/gf/v2/frame/g"
+
+	"github.com/qianfree/team-api/relay/common"
+)
+
+// OpenAI Videos 协议（/v1/videos）核心处理：Video 对象构建、retrieve / delete / content。
+// 协议规格见 docs/协议文档/OpenAI/OpenAI-Videos-API文档.md。
+// 注意状态机只有 queued/in_progress/completed/failed 四值（无 cancelled），
+// 错误分两层：请求层用 HTTP 错误（writeTaskError，OpenAI 格式），
+// 生成层失败用 200 + status:"failed" + 内嵌 error 对象表达。
+
+// videosProtocolOpenAI TaskRelayContext.Protocol 的 OpenAI Videos 协议标识
+const videosProtocolOpenAI = "openai_videos"
+
+// videosPollAfterMs 非终态任务 retrieve 响应头 openai-poll-after-ms 的建议轮询间隔（毫秒）。
+// 官方 SDK poll() 优先读取该响应头，缺省时 SDK 自取 1000ms；视频任务耗时长，放慢到 2s。
+const videosPollAfterMs = "2000"
+
+// videosContentHTTPClient 成品内容回源拉流的 HTTP 客户端（大文件流式转发，整体超时兜底）
+var videosContentHTTPClient = &http.Client{Timeout: 120 * time.Second}
+
+// videoErrorObject 官方 VideoCreateError 的简化形态（misalignment 为 Sora 内容安全特有，第三方上游无对应，不透出）
+type videoErrorObject struct {
+	Code    string `json:"code"`
+	Message string `json:"message"`
+}
+
+// videoObject 官方 Video 对象。可空字段按官方 schema 输出 null（非省略）。
+type videoObject struct {
+	ID                 string            `json:"id"`
+	Object             string            `json:"object"` // 恒为 "video"
+	CreatedAt          int64             `json:"created_at"`
+	CompletedAt        *int64            `json:"completed_at"`
+	Status             string            `json:"status"` // queued / in_progress / completed / failed
+	Progress           int               `json:"progress"`
+	Model              string            `json:"model"`
+	Prompt             *string           `json:"prompt"`
+	Seconds            string            `json:"seconds,omitempty"`
+	Size               string            `json:"size,omitempty"`
+	Error              *videoErrorObject `json:"error"`
+	RemixedFromVideoID *string           `json:"remixed_from_video_id"`
+	ExpiresAt          *int64            `json:"expires_at"`
+}
+
+// videosStatusFromTask 平台任务状态 → 官方四值状态机映射
+func videosStatusFromTask(status string) string {
+	switch status {
+	case "IN_PROGRESS":
+		return "in_progress"
+	case "SUCCESS":
+		return "completed"
+	case "FAILURE":
+		return "failed"
+	default:
+		// NOT_START / SUBMITTED / QUEUED 及一切未知中间态都归入 queued
+		return "queued"
+	}
+}
+
+// videosProgressFromTask 平台进度（"42%" 字符串）→ 官方整数百分比。
+// 解析失败时按状态给粗粒度值（第三方上游无进度信息时的兜底）。
+func videosProgressFromTask(task *common.AsyncTask) int {
+	if n, err := strconv.Atoi(strings.TrimSpace(strings.TrimSuffix(task.Progress, "%"))); err == nil {
+		if n < 0 {
+			return 0
+		}
+		if n > 100 {
+			return 100
+		}
+		return n
+	}
+	switch videosStatusFromTask(task.Status) {
+	case "completed":
+		return 100
+	case "in_progress":
+		return 50
+	default:
+		return 0
+	}
+}
+
+// videosEchoFromTask 从 PrivateData.request_echo 提取提交时的请求回显
+func videosEchoFromTask(task *common.AsyncTask) videosRequestEcho {
+	var echo videosRequestEcho
+	if len(task.PrivateData) == 0 {
+		return echo
+	}
+	var pd struct {
+		RequestEcho *videosRequestEcho `json:"request_echo"`
+	}
+	if err := json.Unmarshal(task.PrivateData, &pd); err == nil && pd.RequestEcho != nil {
+		echo = *pd.RequestEcho
+	}
+	return echo
+}
+
+// buildVideoObject 平台任务 → 官方 Video 对象
+func buildVideoObject(task *common.AsyncTask) *videoObject {
+	obj := &videoObject{
+		ID:        task.PublicTaskID,
+		Object:    "video",
+		CreatedAt: task.CreatedAt.Unix(),
+		Status:    videosStatusFromTask(task.Status),
+		Progress:  videosProgressFromTask(task),
+		Model:     task.ModelName,
+	}
+
+	echo := videosEchoFromTask(task)
+	prompt := echo.Prompt
+	obj.Prompt = &prompt
+	obj.Seconds = echo.Seconds
+	obj.Size = echo.Size
+
+	if task.FinishTime != nil {
+		completedAt := task.FinishTime.Unix()
+		obj.CompletedAt = &completedAt
+	}
+	if obj.Status == "failed" {
+		message := task.FailReason
+		if message == "" {
+			message = "video generation failed"
+		}
+		obj.Error = &videoErrorObject{Code: "video_generation_failed", Message: message}
+	}
+	return obj
+}
+
+// writeVideosSubmitResponse 提交成功响应：官方 Video 对象（初始 queued / progress 0）
+func writeVideosSubmitResponse(w http.ResponseWriter, publicTaskID, modelName string, now time.Time, echo any) {
+	obj := &videoObject{
+		ID:        publicTaskID,
+		Object:    "video",
+		CreatedAt: now.Unix(),
+		Status:    "queued",
+		Progress:  0,
+		Model:     modelName,
+	}
+	if echo != nil {
+		if e, ok := echo.(videosRequestEcho); ok {
+			prompt := e.Prompt
+			obj.Prompt = &prompt
+			obj.Seconds = e.Seconds
+			obj.Size = e.Size
+		}
+	}
+	writeJSON(w, http.StatusOK, obj)
+}
+
+// HandleVideosRetrieve GET /v1/videos/{video_id} 查询管线。
+// 租户双键隔离（user_id + tenant_id）复用 GetTaskByPublicIDAndUser；软删除任务已被过滤，天然 404。
+func HandleVideosRetrieve(
+	ctx context.Context,
+	videoID string,
+	rc *TaskRelayContext,
+	dataProvider common.TaskDataProvider,
+) {
+	task, err := dataProvider.GetTaskByPublicIDAndUser(ctx, videoID, rc.UserID, rc.TenantID)
+	if err != nil {
+		g.Log().Errorf(ctx, "HandleVideosRetrieve: query task failed, videoID=%s, err=%v", videoID, err)
+		writeTaskError(rc.Writer, http.StatusInternalServerError, "query task failed", "")
+		return
+	}
+	if task == nil {
+		writeTaskError(rc.Writer, http.StatusNotFound, "No video found with id '"+videoID+"'.", "")
+		return
+	}
+
+	obj := buildVideoObject(task)
+	// 非终态附带官方轮询提示头（SDK poll() 优先读取）
+	if obj.Status == "queued" || obj.Status == "in_progress" {
+		rc.Writer.Header().Set("openai-poll-after-ms", videosPollAfterMs)
+	}
+	writeJSON(rc.Writer, http.StatusOK, obj)
+}
+
+// HandleVideosDelete DELETE /v1/videos/{video_id} 删除管线。
+// 对齐官方语义「永久删除已完成/失败的视频及其资产」：仅终态可删；
+// 网关侧软删除保留计费与审计记录，删除后查询/下载均按 404 处理（幂等）。
+func HandleVideosDelete(
+	ctx context.Context,
+	videoID string,
+	rc *TaskRelayContext,
+	dataProvider common.TaskDataProvider,
+) {
+	task, err := dataProvider.GetTaskByPublicIDAndUser(ctx, videoID, rc.UserID, rc.TenantID)
+	if err != nil {
+		g.Log().Errorf(ctx, "HandleVideosDelete: query task failed, videoID=%s, err=%v", videoID, err)
+		writeTaskError(rc.Writer, http.StatusInternalServerError, "query task failed", "")
+		return
+	}
+	if task == nil {
+		writeTaskError(rc.Writer, http.StatusNotFound, "No video found with id '"+videoID+"'.", "")
+		return
+	}
+
+	// 仅终态（completed/failed）可删，进行中任务官方亦不允许删除
+	if videosStatusFromTask(task.Status) != "completed" && videosStatusFromTask(task.Status) != "failed" {
+		writeTaskError(rc.Writer, http.StatusBadRequest, "only completed or failed videos can be deleted", "video_not_deletable")
+		return
+	}
+	// 未结算的终态任务删除会造成退款悬空：结算由轮询 cron 兜底完成后即可删除
+	if !task.BillingSettled {
+		writeTaskError(rc.Writer, http.StatusBadRequest, "video billing is not settled yet, retry later", "billing_pending")
+		return
+	}
+
+	if err := dataProvider.SoftDeleteTask(ctx, task); err != nil {
+		g.Log().Errorf(ctx, "HandleVideosDelete: soft delete failed, videoID=%s, err=%v", videoID, err)
+		writeTaskError(rc.Writer, http.StatusInternalServerError, "delete video failed", "")
+		return
+	}
+	g.Log().Infof(ctx, "HandleVideosDelete: video deleted, videoID=%s, tenant=%d, user=%d", videoID, rc.TenantID, rc.UserID)
+
+	writeJSON(rc.Writer, http.StatusOK, map[string]any{
+		"id":      task.PublicTaskID,
+		"object":  "video.deleted",
+		"deleted": true,
+	})
+}
+
+// HandleVideosContent GET /v1/videos/{video_id}/content 成品下载管线。
+// 从任务 ResultURL 回源拉流并转发二进制（不透出上游 CDN 直链）。
+// 仅支持官方默认 variant=video；thumbnail/spritesheet 第三方上游无此资产。
+func HandleVideosContent(
+	ctx context.Context,
+	videoID string,
+	variant string,
+	rc *TaskRelayContext,
+	dataProvider common.TaskDataProvider,
+) {
+	if variant != "" && variant != "video" {
+		writeTaskError(rc.Writer, http.StatusBadRequest, "unsupported content variant: "+variant, "unsupported_variant")
+		return
+	}
+
+	task, err := dataProvider.GetTaskByPublicIDAndUser(ctx, videoID, rc.UserID, rc.TenantID)
+	if err != nil {
+		g.Log().Errorf(ctx, "HandleVideosContent: query task failed, videoID=%s, err=%v", videoID, err)
+		writeTaskError(rc.Writer, http.StatusInternalServerError, "query task failed", "")
+		return
+	}
+	if task == nil {
+		writeTaskError(rc.Writer, http.StatusNotFound, "No video found with id '"+videoID+"'.", "")
+		return
+	}
+
+	// 官方语义：仅 completed 可下载（未完成/失败均报错）
+	if task.Status != "SUCCESS" {
+		writeTaskError(rc.Writer, http.StatusBadRequest, "video content is not available until the video is completed", "video_not_ready")
+		return
+	}
+	// 部分上游（如官方 sora）不提供成品直链，需要二跳 content 拉取——当前不支持，明确报错
+	if task.ResultURL == "" {
+		writeTaskError(rc.Writer, http.StatusBadRequest, "video content is not available for this task", "content_not_available")
+		return
+	}
+
+	// ResultURL 来自上游响应持久化数据，仍做 scheme 白名单防异构值
+	resultURL, err := url.Parse(task.ResultURL)
+	if err != nil || (resultURL.Scheme != "http" && resultURL.Scheme != "https") {
+		g.Log().Errorf(ctx, "HandleVideosContent: invalid result url, videoID=%s, url=%q, err=%v", videoID, task.ResultURL, err)
+		writeTaskError(rc.Writer, http.StatusInternalServerError, "invalid video result url", "")
+		return
+	}
+
+	resp, err := videosContentHTTPClient.Get(task.ResultURL)
+	if err != nil {
+		// 上游拉流失败属预期内运营事件，用 Warningf 避免自动打栈（对齐任务提交链路日志分级）
+		g.Log().Warningf(ctx, "HandleVideosContent: fetch upstream failed, videoID=%s, err=%v", videoID, err)
+		writeTaskError(rc.Writer, http.StatusBadGateway, "failed to fetch video content", "")
+		return
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		g.Log().Warningf(ctx, "HandleVideosContent: upstream status=%d, videoID=%s", resp.StatusCode, videoID)
+		writeTaskError(rc.Writer, http.StatusBadGateway, "failed to fetch video content", "")
+		return
+	}
+
+	// 透传内容元信息后流式转发字节
+	if ct := resp.Header.Get("Content-Type"); ct != "" {
+		rc.Writer.Header().Set("Content-Type", ct)
+	}
+	if cl := resp.Header.Get("Content-Length"); cl != "" {
+		rc.Writer.Header().Set("Content-Length", cl)
+	}
+	rc.Writer.WriteHeader(http.StatusOK)
+	if _, err := io.Copy(rc.Writer, resp.Body); err != nil {
+		// 响应头已发出，只能记录日志，无法再改写为错误响应
+		g.Log().Warningf(ctx, "HandleVideosContent: stream copy failed, videoID=%s, err=%v", videoID, err)
+	}
+}
diff --git a/relay/handler/videos_convert.go b/relay/handler/videos_convert.go
new file mode 100644
index 0000000..5200f83
--- /dev/null
+++ b/relay/handler/videos_convert.go
@@ -0,0 +1,290 @@
+package handler
+
+import (
+	"bytes"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"mime"
+	"mime/multipart"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/qianfree/team-api/relay/common"
+)
+
+// OpenAI Videos 协议（/v1/videos）入站转换层。
+// 官方 SDK（openai-python / openai-node）对 POST /v1/videos 一律发送 multipart/form-data，
+// 裸 HTTP 客户端常用 JSON——两种编码都要支持；解析后统一转成任务框架的通用请求体
+// {model, prompt, seconds, metadata{duration, aspect_ratio, resolution, image}}，
+// 由各 taskchannel 适配器按需消费（kling 读顶层 seconds，volcengine 读 metadata.duration 等）。
+
+// videosInputReferenceMaxBytes 参考图上传大小上限。
+// GoFrame server 默认 ClientMaxBodySize 8MB，base64 膨胀 4/3 后须留余量，取 6MB。
+const videosInputReferenceMaxBytes = 6 << 20
+
+// videosCreateRequest OpenAI Videos 创建请求的归一形态（multipart/JSON 解析后的产物）
+type videosCreateRequest struct {
+	Model          string
+	Prompt         string
+	Seconds        string // 统一归一为字符串（官方协议为 "4"/"8"/"12"）；空 = 未指定
+	Size           string // 原样保留（如 "1280x720"）；空 = 未指定
+	InputReference string // 参考图：data URL 或 http(s) URL；空 = 无
+}
+
+// videosRequestEcho 提交时落 PrivateData.request_echo 的请求回显，
+// retrieve（GET /v1/videos/{id}）时用于回显 prompt/seconds/size（上游响应不含这些字段）。
+type videosRequestEcho struct {
+	Prompt  string `json:"prompt"`
+	Seconds string `json:"seconds,omitempty"`
+	Size    string `json:"size,omitempty"`
+}
+
+// jsonVideosCreateRequest JSON 编码的创建请求结构。
+// input_reference 保留 RawMessage 以区分 {file_id} / {image_url} 两种引用形态。
+type jsonVideosCreateRequest struct {
+	Model          string          `json:"model"`
+	Prompt         string          `json:"prompt"`
+	Seconds        json.RawMessage `json:"seconds"` // string 或 number
+	Size           string          `json:"size"`
+	InputReference json.RawMessage `json:"input_reference"`
+}
+
+// ParseVideosCreateRequest 解析 OpenAI Videos 创建请求（multipart 或 JSON）。
+// 返回的 TaskError 已携带面向客户端的 HTTP 状态码与错误信息。
+func ParseVideosCreateRequest(body []byte, contentType string) (*videosCreateRequest, *common.TaskError) {
+	mediaType, params, err := mime.ParseMediaType(contentType)
+	if err != nil {
+		mediaType = contentType // 非法 Content-Type 按 JSON 尝试解析
+	}
+
+	if strings.HasPrefix(mediaType, "multipart/") {
+		return parseVideosCreateMultipart(body, params["boundary"])
+	}
+	return parseVideosCreateJSON(body)
+}
+
+// parseVideosCreateJSON 解析 JSON 编码的创建请求
+func parseVideosCreateJSON(body []byte) (*videosCreateRequest, *common.TaskError) {
+	var req jsonVideosCreateRequest
+	if err := json.Unmarshal(body, &req); err != nil {
+		return nil, &common.TaskError{StatusCode: http.StatusBadRequest, Message: "invalid request body: " + err.Error()}
+	}
+
+	out := &videosCreateRequest{
+		Model:  strings.TrimSpace(req.Model),
+		Prompt: req.Prompt,
+		Size:   strings.TrimSpace(req.Size),
+	}
+
+	seconds, terr := normalizeVideosSeconds(req.Seconds)
+	if terr != nil {
+		return nil, terr
+	}
+	out.Seconds = seconds
+
+	ref, terr := parseVideosInputReferenceJSON(req.InputReference)
+	if terr != nil {
+		return nil, terr
+	}
+	out.InputReference = ref
+
+	return out, nil
+}
+
+// parseVideosCreateMultipart 解析 multipart/form-data 编码的创建请求（官方 SDK 形态）。
+// input_reference 可能是文件 part（上传），也可能是字符串 part（引用对象 JSON）。
+func parseVideosCreateMultipart(body []byte, boundary string) (*videosCreateRequest, *common.TaskError) {
+	if boundary == "" {
+		return nil, &common.TaskError{StatusCode: http.StatusBadRequest, Message: "missing multipart boundary"}
+	}
+
+	form, err := multipart.NewReader(bytes.NewReader(body), boundary).ReadForm(videosInputReferenceMaxBytes)
+	if err != nil {
+		return nil, &common.TaskError{StatusCode: http.StatusBadRequest, Message: "invalid multipart form: " + err.Error()}
+	}
+	defer form.RemoveAll()
+
+	formValue := func(name string) string {
+		if vals := form.Value[name]; len(vals) > 0 {
+			return vals[0]
+		}
+		return ""
+	}
+
+	out := &videosCreateRequest{
+		Model:  strings.TrimSpace(formValue("model")),
+		Prompt: formValue("prompt"),
+		Size:   strings.TrimSpace(formValue("size")),
+	}
+
+	seconds, terr := normalizeVideosSeconds(json.RawMessage(formValue("seconds")))
+	if terr != nil {
+		return nil, terr
+	}
+	out.Seconds = seconds
+
+	// input_reference：优先文件 part，其次字符串 part（引用对象 JSON）
+	if files := form.File["input_reference"]; len(files) > 0 {
+		fh := files[0]
+		f, err := fh.Open()
+		if err != nil {
+			return nil, &common.TaskError{StatusCode: http.StatusBadRequest, Message: "failed to open input_reference file"}
+		}
+		defer f.Close()
+
+		raw, err := io.ReadAll(io.LimitReader(f, videosInputReferenceMaxBytes+1))
+		if err != nil {
+			return nil, &common.TaskError{StatusCode: http.StatusBadRequest, Message: "failed to read input_reference file"}
+		}
+		if len(raw) > videosInputReferenceMaxBytes {
+			return nil, &common.TaskError{StatusCode: http.StatusBadRequest, Message: "input_reference file too large, max 6MB"}
+		}
+		if len(raw) == 0 {
+			return nil, &common.TaskError{StatusCode: http.StatusBadRequest, Message: "input_reference file is empty"}
+		}
+
+		// 内容类型探测优先于 part 声明的 Content-Type（客户端常误标 application/octet-stream）
+		ct := fh.Header.Get("Content-Type")
+		if ct == "" || ct == "application/octet-stream" {
+			ct = http.DetectContentType(raw)
+		}
+		out.InputReference = "data:" + ct + ";base64," + base64.StdEncoding.EncodeToString(raw)
+	} else if v := formValue("input_reference"); v != "" {
+		ref, terr := parseVideosInputReferenceJSON(json.RawMessage(v))
+		if terr != nil {
+			return nil, terr
+		}
+		out.InputReference = ref
+	}
+
+	return out, nil
+}
+
+// normalizeVideosSeconds 归一 seconds 字段：接受字符串（官方形态）或数字（宽松兼容），统一转字符串。
+// 不做 4/8/12 白名单校验——第三方视频模型时长档位各异，透传给适配器自行对齐。
+func normalizeVideosSeconds(raw json.RawMessage) (string, *common.TaskError) {
+	if len(raw) == 0 {
+		return "", nil
+	}
+	var s string
+	if err := json.Unmarshal(raw, &s); err == nil {
+		return strings.TrimSpace(s), nil
+	}
+	var n json.Number
+	if err := json.Unmarshal(raw, &n); err == nil {
+		if _, convErr := strconv.ParseFloat(n.String(), 64); convErr == nil {
+			return n.String(), nil
+		}
+	}
+	return "", &common.TaskError{StatusCode: http.StatusBadRequest, Message: "invalid seconds field: must be a string or number"}
+}
+
+// parseVideosInputReferenceJSON 解析引用对象形态的 input_reference：
+//   - {"image_url": "https://... 或 data:..."} → 原样透传
+//   - {"file_id": "..."} → 不支持（平台无 Files API），返回 400 引导改用 image_url/文件上传
+func parseVideosInputReferenceJSON(raw json.RawMessage) (string, *common.TaskError) {
+	if len(raw) == 0 || string(raw) == "null" {
+		return "", nil
+	}
+
+	var ref struct {
+		FileID   string `json:"file_id"`
+		ImageURL string `json:"image_url"`
+	}
+	if err := json.Unmarshal(raw, &ref); err != nil {
+		return "", &common.TaskError{StatusCode: http.StatusBadRequest, Message: "invalid input_reference: expected file upload or {image_url}"}
+	}
+	switch {
+	case ref.ImageURL != "":
+		return ref.ImageURL, nil
+	case ref.FileID != "":
+		return "", &common.TaskError{
+			StatusCode: http.StatusBadRequest,
+			Message:    "input_reference.file_id is not supported; upload the file directly or use image_url instead",
+			ErrCode:    "file_id_not_supported",
+		}
+	default:
+		return "", &common.TaskError{StatusCode: http.StatusBadRequest, Message: "invalid input_reference: expected file upload or {image_url}"}
+	}
+}
+
+// videosSizeMapping 官方四档分辨率 → 第三方通用参数（aspect_ratio + resolution）。
+// 未命中四档的 size 不做映射（第三方分辨率自由，透传 metadata.size 原值即可）。
+var videosSizeMapping = map[string]struct {
+	AspectRatio string
+	Resolution  string
+}{
+	"720x1280":  {"9:16", "720p"},
+	"1280x720":  {"16:9", "720p"},
+	"1024x1792": {"9:16", "1080p"},
+	"1792x1024": {"16:9", "1080p"},
+}
+
+// BuildVideosTaskBody 把归一后的创建请求转成任务框架通用请求体（JSON 字节）。
+// 顶层保留 seconds + images，metadata 写入 duration/ratio/aspect_ratio/resolution/size/image，
+// 未识别字段一律透传原值，不在此处做模型能力裁剪。
+// 参数采用「双写」策略覆盖两套适配器词汇（未知键互不干扰，json.Unmarshal 自动忽略）：
+//   - kling：顶层 seconds、metadata.aspect_ratio、metadata.image
+//   - volcengine(seedance)：顶层 seconds、images[] 数组（→content[].image_url 首帧）、
+//     metadata.ratio、metadata.duration、metadata.resolution
+func BuildVideosTaskBody(req *videosCreateRequest) ([]byte, error) {
+	body := map[string]any{
+		"model":  req.Model,
+		"prompt": req.Prompt,
+	}
+	metadata := map[string]any{}
+
+	if req.Seconds != "" {
+		body["seconds"] = req.Seconds
+		if d, err := strconv.Atoi(req.Seconds); err == nil {
+			metadata["duration"] = d
+		}
+	}
+	if req.Size != "" {
+		metadata["size"] = req.Size
+		if m, ok := videosSizeMapping[req.Size]; ok {
+			// aspect_ratio（kling）与 ratio（volcengine）值域同构："16:9"/"9:16"
+			metadata["aspect_ratio"] = m.AspectRatio
+			metadata["ratio"] = m.AspectRatio
+			metadata["resolution"] = m.Resolution
+		}
+	}
+	if req.InputReference != "" {
+		metadata["image"] = req.InputReference
+		// volcengine 图生视频读根级 images 数组（kling 亦有该兜底）
+		body["images"] = []string{req.InputReference}
+	}
+	if len(metadata) > 0 {
+		body["metadata"] = metadata
+	}
+
+	data, err := json.Marshal(body)
+	if err != nil {
+		return nil, fmt.Errorf("marshal videos task body: %w", err)
+	}
+	return data, nil
+}
+
+// ValidateVideosCreateRequest 请求必填校验（model/prompt 官方均为必填）
+func ValidateVideosCreateRequest(req *videosCreateRequest) *common.TaskError {
+	if req.Model == "" {
+		return &common.TaskError{StatusCode: http.StatusBadRequest, Message: "model is required"}
+	}
+	if strings.TrimSpace(req.Prompt) == "" {
+		return &common.TaskError{StatusCode: http.StatusBadRequest, Message: "prompt is required"}
+	}
+	return nil
+}
+
+// NewVideosRequestEcho 从归一请求构造提交回显（胶水层经 TaskRelayContext.RequestEcho 传入，
+// 提交时随 PrivateData 落库，retrieve 时回显 prompt/seconds/size）
+func NewVideosRequestEcho(req *videosCreateRequest) videosRequestEcho {
+	return videosRequestEcho{
+		Prompt:  req.Prompt,
+		Seconds: req.Seconds,
+		Size:    req.Size,
+	}
+}
diff --git a/relay/handler/videos_convert_test.go b/relay/handler/videos_convert_test.go
new file mode 100644
index 0000000..956abe1
--- /dev/null
+++ b/relay/handler/videos_convert_test.go
@@ -0,0 +1,221 @@
+package handler
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"mime/multipart"
+	"net/textproto"
+	"strings"
+	"testing"
+)
+
+// buildMultipartVideosBody 构造 multipart/form-data 的创建请求体（模拟官方 SDK 形态）。
+// 文件 part 的 Content-Type 统一声明为 application/octet-stream，以覆盖内容类型嗅探路径。
+func buildMultipartVideosBody(t *testing.T, fields map[string]string, fileField, fileName string, fileBytes []byte) ([]byte, string) {
+	t.Helper()
+	var buf bytes.Buffer
+	w := multipart.NewWriter(&buf)
+
+	for k, v := range fields {
+		if err := w.WriteField(k, v); err != nil {
+			t.Fatalf("write field %s: %v", k, err)
+		}
+	}
+	if fileField != "" {
+		h := textproto.MIMEHeader{}
+		h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="%s"; filename="%s"`, fileField, fileName))
+		h.Set("Content-Type", "application/octet-stream")
+		part, err := w.CreatePart(h)
+		if err != nil {
+			t.Fatalf("create file part: %v", err)
+		}
+		if _, err := part.Write(fileBytes); err != nil {
+			t.Fatalf("write file part: %v", err)
+		}
+	}
+	if err := w.Close(); err != nil {
+		t.Fatalf("close writer: %v", err)
+	}
+	return buf.Bytes(), w.FormDataContentType()
+}
+
+func TestParseVideosCreateRequest_JSON(t *testing.T) {
+	body := `{"model":"kling-v2-master","prompt":"a cat","seconds":"8","size":"1280x720","input_reference":{"image_url":"https://example.com/ref.png"}}`
+	req, taskErr := ParseVideosCreateRequest([]byte(body), "application/json")
+	if taskErr != nil {
+		t.Fatalf("unexpected error: %+v", taskErr)
+	}
+	if req.Model != "kling-v2-master" || req.Prompt != "a cat" || req.Seconds != "8" || req.Size != "1280x720" {
+		t.Fatalf("unexpected request: %+v", req)
+	}
+	if req.InputReference != "https://example.com/ref.png" {
+		t.Fatalf("unexpected input_reference: %s", req.InputReference)
+	}
+}
+
+func TestParseVideosCreateRequest_JSONSecondsNumber(t *testing.T) {
+	body := `{"model":"m","prompt":"p","seconds":8}`
+	req, taskErr := ParseVideosCreateRequest([]byte(body), "application/json; charset=utf-8")
+	if taskErr != nil {
+		t.Fatalf("unexpected error: %+v", taskErr)
+	}
+	if req.Seconds != "8" {
+		t.Fatalf("expected seconds normalized to \"8\", got %q", req.Seconds)
+	}
+}
+
+func TestParseVideosCreateRequest_JSONInvalidSeconds(t *testing.T) {
+	body := `{"model":"m","prompt":"p","seconds":true}`
+	_, taskErr := ParseVideosCreateRequest([]byte(body), "application/json")
+	if taskErr == nil || taskErr.StatusCode != 400 {
+		t.Fatalf("expected 400 for bool seconds, got %+v", taskErr)
+	}
+}
+
+func TestParseVideosCreateRequest_JSONFileIDRejected(t *testing.T) {
+	body := `{"model":"m","prompt":"p","input_reference":{"file_id":"file-abc"}}`
+	_, taskErr := ParseVideosCreateRequest([]byte(body), "application/json")
+	if taskErr == nil {
+		t.Fatal("expected file_id to be rejected")
+	}
+	if taskErr.StatusCode != 400 || taskErr.ErrCode != "file_id_not_supported" {
+		t.Fatalf("unexpected error: %+v", taskErr)
+	}
+}
+
+func TestParseVideosCreateRequest_MultipartWithFile(t *testing.T) {
+	// PNG 魔数，DetectContentType 应识别为 image/png（part 声明为 octet-stream）
+	pngBytes := []byte{0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00, 0x00, 0x00, 0x0D}
+	body, ct := buildMultipartVideosBody(t,
+		map[string]string{"model": "kling-v2-master", "prompt": "a cat", "seconds": "12", "size": "720x1280"},
+		"input_reference", "ref.png", pngBytes)
+
+	req, taskErr := ParseVideosCreateRequest(body, ct)
+	if taskErr != nil {
+		t.Fatalf("unexpected error: %+v", taskErr)
+	}
+	if req.Model != "kling-v2-master" || req.Seconds != "12" || req.Size != "720x1280" {
+		t.Fatalf("unexpected request: %+v", req)
+	}
+	if !strings.HasPrefix(req.InputReference, "data:image/png;base64,") {
+		t.Fatalf("expected data url with sniffed image/png, got %.40q", req.InputReference)
+	}
+}
+
+func TestParseVideosCreateRequest_MultipartStringRef(t *testing.T) {
+	body, ct := buildMultipartVideosBody(t,
+		map[string]string{
+			"model":           "m",
+			"prompt":          "p",
+			"input_reference": `{"image_url":"https://example.com/x.jpg"}`,
+		}, "", "", nil)
+
+	req, taskErr := ParseVideosCreateRequest(body, ct)
+	if taskErr != nil {
+		t.Fatalf("unexpected error: %+v", taskErr)
+	}
+	if req.InputReference != "https://example.com/x.jpg" {
+		t.Fatalf("unexpected input_reference: %s", req.InputReference)
+	}
+}
+
+func TestBuildVideosTaskBody_FullMapping(t *testing.T) {
+	req := &videosCreateRequest{
+		Model:          "kling-v2-master",
+		Prompt:         "a cat",
+		Seconds:        "8",
+		Size:           "1280x720",
+		InputReference: "https://example.com/ref.png",
+	}
+	body, err := BuildVideosTaskBody(req)
+	if err != nil {
+		t.Fatalf("build: %v", err)
+	}
+
+	var parsed map[string]any
+	if err := json.Unmarshal(body, &parsed); err != nil {
+		t.Fatalf("unmarshal: %v", err)
+	}
+	if parsed["model"] != "kling-v2-master" || parsed["prompt"] != "a cat" {
+		t.Fatalf("unexpected body: %s", body)
+	}
+	if parsed["seconds"] != "8" {
+		t.Fatalf("expected top-level seconds \"8\", got %v", parsed["seconds"])
+	}
+
+	meta, ok := parsed["metadata"].(map[string]any)
+	if !ok {
+		t.Fatalf("expected metadata object: %s", body)
+	}
+	if meta["duration"] != float64(8) {
+		t.Fatalf("expected metadata.duration 8, got %v", meta["duration"])
+	}
+	if meta["aspect_ratio"] != "16:9" || meta["resolution"] != "720p" {
+		t.Fatalf("expected 16:9/720p, got %v/%v", meta["aspect_ratio"], meta["resolution"])
+	}
+	// 双写：ratio 供 volcengine(seedance) 消费，images 数组供其图生视频读取
+	if meta["ratio"] != "16:9" {
+		t.Fatalf("expected ratio 16:9 for volcengine, got %v", meta["ratio"])
+	}
+	if meta["size"] != "1280x720" {
+		t.Fatalf("expected raw size passthrough, got %v", meta["size"])
+	}
+	if meta["image"] != "https://example.com/ref.png" {
+		t.Fatalf("expected metadata.image, got %v", meta["image"])
+	}
+	images, ok := parsed["images"].([]any)
+	if !ok || len(images) != 1 || images[0] != "https://example.com/ref.png" {
+		t.Fatalf("expected root images array with reference, got %v", parsed["images"])
+	}
+}
+
+func TestBuildVideosTaskBody_Minimal(t *testing.T) {
+	req := &videosCreateRequest{Model: "m", Prompt: "p"}
+	body, err := BuildVideosTaskBody(req)
+	if err != nil {
+		t.Fatalf("build: %v", err)
+	}
+	var parsed map[string]any
+	if err := json.Unmarshal(body, &parsed); err != nil {
+		t.Fatalf("unmarshal: %v", err)
+	}
+	if _, ok := parsed["seconds"]; ok {
+		t.Fatal("expected no seconds field")
+	}
+	if _, ok := parsed["images"]; ok {
+		t.Fatal("expected no images field without input_reference")
+	}
+	if _, ok := parsed["metadata"]; ok {
+		t.Fatal("expected no metadata field")
+	}
+}
+
+func TestBuildVideosTaskBody_UnknownSizeNoRatio(t *testing.T) {
+	req := &videosCreateRequest{Model: "m", Prompt: "p", Size: "1920x1080"}
+	body, _ := BuildVideosTaskBody(req)
+	var parsed map[string]any
+	json.Unmarshal(body, &parsed)
+	meta := parsed["metadata"].(map[string]any)
+	if _, ok := meta["aspect_ratio"]; ok {
+		t.Fatal("unknown size must not map aspect_ratio")
+	}
+	if _, ok := meta["ratio"]; ok {
+		t.Fatal("unknown size must not map ratio")
+	}
+	if meta["size"] != "1920x1080" {
+		t.Fatalf("expected raw size passthrough, got %v", meta["size"])
+	}
+}
+
+func TestValidateVideosCreateRequest(t *testing.T) {
+	if taskErr := ValidateVideosCreateRequest(&videosCreateRequest{Model: "m", Prompt: "p"}); taskErr != nil {
+		t.Fatalf("unexpected: %+v", taskErr)
+	}
+	if taskErr := ValidateVideosCreateRequest(&videosCreateRequest{Prompt: "p"}); taskErr == nil || taskErr.Message != "model is required" {
+		t.Fatalf("expected model required, got %+v", taskErr)
+	}
+	if taskErr := ValidateVideosCreateRequest(&videosCreateRequest{Model: "m", Prompt: "  "}); taskErr == nil || taskErr.Message != "prompt is required" {
+		t.Fatalf("expected prompt required, got %+v", taskErr)
+	}
+}
diff --git a/relay/handler/videos_pipeline_test.go b/relay/handler/videos_pipeline_test.go
new file mode 100644
index 0000000..f6348cc
--- /dev/null
+++ b/relay/handler/videos_pipeline_test.go
@@ -0,0 +1,336 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/shopspring/decimal"
+
+	"github.com/qianfree/team-api/relay/common"
+	"github.com/qianfree/team-api/relay/constant"
+)
+
+// 端到端集成测试：OpenAI Videos 协议（multipart）→ 转换 → 任务提交管线（kling 适配器 + mock 上游）
+// → video_ 前缀 ID + 官方 Video 对象响应 + 请求回显落 PrivateData + 上游收到映射后的 kling 参数。
+
+// stubVideosBillingProvider 提交路径的 TaskBillingProvider 桩（计费全放行，金额固定）
+type stubVideosBillingProvider struct {
+	common.TaskBillingProvider
+}
+
+func (s *stubVideosBillingProvider) EstimateTaskCost(context.Context, int64, string, map[string]float64) (decimal.Decimal, error) {
+	return decimal.NewFromFloat(0.1), nil
+}
+
+func (s *stubVideosBillingProvider) PreDeductTask(_ context.Context, _ int64, _ string, cost decimal.Decimal, _ string) (decimal.Decimal, error) {
+	return cost, nil
+}
+
+func (s *stubVideosBillingProvider) CheckRateLimit(context.Context, int64, int64, int64, int) (bool, string, int, int, int64) {
+	return true, "", 0, 0, 0
+}
+
+func (s *stubVideosBillingProvider) AcquireApiKeyConcurrent(context.Context, int64, int) bool {
+	return true
+}
+func (s *stubVideosBillingProvider) ReleaseApiKeyConcurrent(context.Context, int64) {}
+func (s *stubVideosBillingProvider) CheckApiKeyQuota(context.Context, int64, decimal.Decimal) error {
+	return nil
+}
+
+func (s *stubVideosBillingProvider) AdjustTaskBilling(_ context.Context, _ int64, _ string, _, newCost decimal.Decimal) (decimal.Decimal, error) {
+	return newCost, nil
+}
+
+// stubVideosSubmitProvider 提交路径的 TaskDataProvider 桩（记录创建的任务）
+type stubVideosSubmitProvider struct {
+	common.TaskDataProvider
+
+	created *common.AsyncTask
+}
+
+func (s *stubVideosSubmitProvider) CreateTask(_ context.Context, task *common.AsyncTask) error {
+	s.created = task
+	return nil
+}
+
+func (s *stubVideosSubmitProvider) GetTaskByPublicIDAndUser(_ context.Context, publicTaskID string, _ int64, _ int64) (*common.AsyncTask, error) {
+	if s.created != nil && s.created.PublicTaskID == publicTaskID {
+		return s.created, nil
+	}
+	return nil, nil
+}
+
+func TestHandleTaskSubmit_OpenAIVideosProtocol_FullPipeline(t *testing.T) {
+	// 1. mock kling 上游：记录收到的请求体，返回标准提交成功响应
+	var upstreamReceived map[string]any
+	upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if !strings.HasSuffix(r.URL.Path, "/v1/videos/text2video") {
+			t.Errorf("unexpected upstream path: %s", r.URL.Path)
+		}
+		body, _ := io.ReadAll(r.Body)
+		if err := json.Unmarshal(body, &upstreamReceived); err != nil {
+			t.Errorf("upstream body not json: %v", err)
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]any{
+			"code":    0,
+			"message": "success",
+			"data":    map[string]any{"task_id": "kling-up-1", "task_status": "submitted"},
+		})
+	}))
+	defer upstream.Close()
+
+	// 2. multipart 创建请求 → 归一 → 通用任务体（与胶水层 HandleVideoCreate 相同链路）
+	mBody, ct := buildMultipartVideosBody(t, map[string]string{
+		"model":   "kling-v2-master",
+		"prompt":  "a cat surfing",
+		"seconds": "8",
+		"size":    "1280x720",
+	}, "", "", nil)
+	req, taskErr := ParseVideosCreateRequest(mBody, ct)
+	if taskErr != nil {
+		t.Fatalf("parse: %+v", taskErr)
+	}
+	taskBody, err := BuildVideosTaskBody(req)
+	if err != nil {
+		t.Fatalf("build task body: %v", err)
+	}
+
+	// 3. 跑完整提交管线（kling 适配器 + mock 上游 + 计费/存储桩）
+	rec := httptest.NewRecorder()
+	rc := &TaskRelayContext{
+		TenantID:    1,
+		UserID:      2,
+		ApiKeyID:    3,
+		RequestID:   "req_videos_test",
+		Writer:      rec,
+		Protocol:    videosProtocolOpenAI,
+		RelayMode:   int(constant.RelayModeVideos),
+		RequestEcho: NewVideosRequestEcho(req),
+	}
+	channelMeta := &common.ChannelMeta{
+		ChannelID:         11,
+		ChannelType:       int(constant.ProviderKling),
+		ChannelName:       "mock-kling",
+		BaseURL:           upstream.URL,
+		ApiKey:            "sk-test",
+		UpstreamModelName: "kling-v2-master",
+	}
+	billing := &stubVideosBillingProvider{}
+	data := &stubVideosSubmitProvider{}
+
+	HandleTaskSubmit(context.Background(), taskBody, "/v1/videos", http.Header{}, rc, data, billing, channelMeta)
+
+	// 4. 断言客户端响应：官方 Video 对象
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d, body=%s", rec.Code, rec.Body.String())
+	}
+	resp := decodeVideosJSON(t, rec)
+	if resp["object"] != "video" || resp["status"] != "queued" || resp["progress"] != float64(0) {
+		t.Fatalf("unexpected video object: %s", rec.Body.String())
+	}
+	videoID, _ := resp["id"].(string)
+	if !strings.HasPrefix(videoID, "video_") {
+		t.Fatalf("expected video_ prefixed id, got %q", videoID)
+	}
+	if resp["model"] != "kling-v2-master" || resp["seconds"] != "8" || resp["size"] != "1280x720" {
+		t.Fatalf("expected echo fields in submit response: %s", rec.Body.String())
+	}
+	if prompt, _ := resp["prompt"].(string); prompt != "a cat surfing" {
+		t.Fatalf("expected prompt echo: %s", rec.Body.String())
+	}
+	if rc.TaskID != videoID {
+		t.Fatalf("rc.TaskID=%q should match response id %q", rc.TaskID, videoID)
+	}
+
+	// 5. 断言落库任务：video_ ID、kling 平台、PrivateData 含 request_echo
+	if data.created == nil {
+		t.Fatal("expected task record created")
+	}
+	if data.created.PublicTaskID != videoID {
+		t.Fatalf("created task id=%q", data.created.PublicTaskID)
+	}
+	if data.created.Platform != "kling" {
+		t.Fatalf("expected platform kling, got %q", data.created.Platform)
+	}
+	var pd struct {
+		UpstreamTaskID string             `json:"upstream_task_id"`
+		RequestEcho    *videosRequestEcho `json:"request_echo"`
+	}
+	if err := json.Unmarshal(data.created.PrivateData, &pd); err != nil {
+		t.Fatalf("private data unmarshal: %v", err)
+	}
+	if pd.UpstreamTaskID != "kling-up-1" {
+		t.Fatalf("expected upstream task id captured, got %q", pd.UpstreamTaskID)
+	}
+	if pd.RequestEcho == nil || pd.RequestEcho.Seconds != "8" || pd.RequestEcho.Size != "1280x720" {
+		t.Fatalf("expected request echo persisted: %+v", pd.RequestEcho)
+	}
+
+	// 6. 断言上游收到映射后的 kling 参数（seconds→duration、size→aspect_ratio）
+	if upstreamReceived["model_name"] != "kling-v2-master" {
+		t.Fatalf("upstream model_name: %v", upstreamReceived["model_name"])
+	}
+	if upstreamReceived["duration"] != "8" {
+		t.Fatalf("upstream duration: %v", upstreamReceived["duration"])
+	}
+	if upstreamReceived["aspect_ratio"] != "16:9" {
+		t.Fatalf("upstream aspect_ratio: %v", upstreamReceived["aspect_ratio"])
+	}
+	if upstreamReceived["prompt"] != "a cat surfing" {
+		t.Fatalf("upstream prompt: %v", upstreamReceived["prompt"])
+	}
+}
+
+func TestHandleTaskSubmit_OpenAIVideosProtocol_Seedance(t *testing.T) {
+	// mock 火山引擎（seedance）上游：提交端点返回任务 ID
+	var upstreamReceived map[string]any
+	upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if !strings.HasSuffix(r.URL.Path, "/api/v3/contents/generations/tasks") {
+			t.Errorf("unexpected upstream path: %s", r.URL.Path)
+		}
+		body, _ := io.ReadAll(r.Body)
+		if err := json.Unmarshal(body, &upstreamReceived); err != nil {
+			t.Errorf("upstream body not json: %v", err)
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]any{"id": "cgt-seedance-1"})
+	}))
+	defer upstream.Close()
+
+	// multipart 创建请求：图生视频（input_reference 文件）+ 高清横屏档
+	pngBytes := []byte{0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A}
+	mBody, ct := buildMultipartVideosBody(t, map[string]string{
+		"model":   "doubao-seedance-2-0-260128",
+		"prompt":  "小猫对着镜头打哈欠",
+		"seconds": "12",
+		"size":    "1792x1024",
+	}, "input_reference", "ref.png", pngBytes)
+	req, taskErr := ParseVideosCreateRequest(mBody, ct)
+	if taskErr != nil {
+		t.Fatalf("parse: %+v", taskErr)
+	}
+	taskBody, err := BuildVideosTaskBody(req)
+	if err != nil {
+		t.Fatalf("build task body: %v", err)
+	}
+
+	rec := httptest.NewRecorder()
+	rc := &TaskRelayContext{
+		TenantID:    1,
+		UserID:      2,
+		ApiKeyID:    3,
+		RequestID:   "req_seedance_test",
+		Writer:      rec,
+		Protocol:    videosProtocolOpenAI,
+		RelayMode:   int(constant.RelayModeVideos),
+		RequestEcho: NewVideosRequestEcho(req),
+	}
+	channelMeta := &common.ChannelMeta{
+		ChannelID:         12,
+		ChannelType:       int(constant.ProviderVolcengine),
+		ChannelName:       "mock-volcengine",
+		BaseURL:           upstream.URL,
+		ApiKey:            "sk-test",
+		UpstreamModelName: "doubao-seedance-2-0-260128",
+	}
+	data := &stubVideosSubmitProvider{}
+
+	HandleTaskSubmit(context.Background(), taskBody, "/v1/videos", http.Header{}, rc, data, &stubVideosBillingProvider{}, channelMeta)
+
+	// 客户端响应：官方 Video 对象
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d, body=%s", rec.Code, rec.Body.String())
+	}
+	resp := decodeVideosJSON(t, rec)
+	if resp["object"] != "video" || resp["status"] != "queued" {
+		t.Fatalf("unexpected video object: %s", rec.Body.String())
+	}
+	if resp["seconds"] != "12" || resp["size"] != "1792x1024" {
+		t.Fatalf("expected echo fields: %s", rec.Body.String())
+	}
+	if data.created == nil || data.created.Platform != "volcengine" {
+		t.Fatalf("expected volcengine task record, got %+v", data.created)
+	}
+
+	// 上游收到的 seedance 参数：content 文本+首帧图、duration/ratio/resolution 全部对上
+	if upstreamReceived["model"] != "doubao-seedance-2-0-260128" {
+		t.Fatalf("upstream model: %v", upstreamReceived["model"])
+	}
+	if upstreamReceived["duration"] != float64(12) {
+		t.Fatalf("upstream duration: %v (%T)", upstreamReceived["duration"], upstreamReceived["duration"])
+	}
+	if upstreamReceived["ratio"] != "16:9" {
+		t.Fatalf("upstream ratio: %v", upstreamReceived["ratio"])
+	}
+	if upstreamReceived["resolution"] != "1080p" {
+		t.Fatalf("upstream resolution: %v", upstreamReceived["resolution"])
+	}
+	content, ok := upstreamReceived["content"].([]any)
+	if !ok || len(content) != 2 {
+		t.Fatalf("expected text + first_frame image content items, got %v", upstreamReceived["content"])
+	}
+	textItem, _ := content[0].(map[string]any)
+	if textItem["type"] != "text" || textItem["text"] != "小猫对着镜头打哈欠" {
+		t.Fatalf("unexpected text item: %v", content[0])
+	}
+	imgItem, _ := content[1].(map[string]any)
+	if imgItem["type"] != "image_url" {
+		t.Fatalf("expected image_url item, got %v", content[1])
+	}
+	imgURL, _ := imgItem["image_url"].(map[string]any)
+	urlStr, _ := imgURL["url"].(string)
+	if !strings.HasPrefix(urlStr, "data:image/png;base64,") {
+		t.Fatalf("expected base64 data url as first frame, got %.40q", urlStr)
+	}
+}
+
+func TestHandleTaskSubmit_LegacyProtocolUnchanged(t *testing.T) {
+	// 回归：Protocol 为空（legacy）时提交响应保持 {id: task_*, status: SUBMITTED} 旧格式
+	upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		_ = json.NewEncoder(w).Encode(map[string]any{
+			"code":    0,
+			"message": "success",
+			"data":    map[string]any{"task_id": "kling-up-2", "task_status": "submitted"},
+		})
+	}))
+	defer upstream.Close()
+
+	rec := httptest.NewRecorder()
+	rc := &TaskRelayContext{
+		TenantID:  1,
+		UserID:    2,
+		ApiKeyID:  3,
+		RequestID: "req_legacy_test",
+		Writer:    rec,
+	}
+	channelMeta := &common.ChannelMeta{
+		ChannelID:         11,
+		ChannelType:       int(constant.ProviderKling),
+		BaseURL:           upstream.URL,
+		ApiKey:            "sk-test",
+		UpstreamModelName: "kling-v2-master",
+	}
+	body := []byte(`{"model":"kling-v2-master","prompt":"legacy","metadata":{"duration":5}}`)
+	HandleTaskSubmit(context.Background(), body, "/v1/video/generations", http.Header{}, rc, &stubVideosSubmitProvider{}, &stubVideosBillingProvider{}, channelMeta)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d, body=%s", rec.Code, rec.Body.String())
+	}
+	resp := decodeVideosJSON(t, rec)
+	if resp["status"] != "SUBMITTED" {
+		t.Fatalf("legacy submit must keep SUBMITTED status: %s", rec.Body.String())
+	}
+	if id, _ := resp["id"].(string); !strings.HasPrefix(id, "task_") {
+		t.Fatalf("legacy submit must keep task_ prefix: %s", rec.Body.String())
+	}
+	if _, hasObject := resp["object"]; hasObject {
+		t.Fatalf("legacy submit must not carry video object field: %s", rec.Body.String())
+	}
+}
diff --git a/relay/handler/videos_test.go b/relay/handler/videos_test.go
new file mode 100644
index 0000000..abe3269
--- /dev/null
+++ b/relay/handler/videos_test.go
@@ -0,0 +1,336 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/qianfree/team-api/relay/common"
+)
+
+// stubVideosTaskProvider 查询/删除路径的 TaskDataProvider 桩：
+// 嵌入接口零值，未覆盖的方法被调用时 panic（测试应只触达覆盖的方法）。
+type stubVideosTaskProvider struct {
+	common.TaskDataProvider
+
+	task        *common.AsyncTask
+	fetchErr    error
+	deleteCalls int
+	deleteErr   error
+}
+
+func (s *stubVideosTaskProvider) GetTaskByPublicIDAndUser(_ context.Context, publicTaskID string, _ int64, _ int64) (*common.AsyncTask, error) {
+	if s.fetchErr != nil {
+		return nil, s.fetchErr
+	}
+	if s.task != nil && s.task.PublicTaskID == publicTaskID {
+		return s.task, nil
+	}
+	return nil, nil
+}
+
+func (s *stubVideosTaskProvider) SoftDeleteTask(_ context.Context, task *common.AsyncTask) error {
+	s.deleteCalls++
+	if s.deleteErr != nil {
+		return s.deleteErr
+	}
+	task.Deleted = true
+	return nil
+}
+
+func newVideosTestTask() *common.AsyncTask {
+	finish := time.Unix(1760000432, 0)
+	privateData, _ := json.Marshal(map[string]any{
+		"upstream_task_id": "up-1",
+		"task_type":        "kling",
+		"request_echo":     map[string]any{"prompt": "a cat", "seconds": "8", "size": "1280x720"},
+	})
+	return &common.AsyncTask{
+		ID:             1,
+		PublicTaskID:   "video_abc",
+		Status:         "SUCCESS",
+		Progress:       "100%",
+		ModelName:      "kling-v2-master",
+		ResultURL:      "https://cdn.example.com/v.mp4",
+		BillingSettled: true,
+		FinishTime:     &finish,
+		CreatedAt:      time.Unix(1760000000, 0),
+		PrivateData:    privateData,
+		TenantID:       7,
+		UserID:         9,
+	}
+}
+
+func videosTestRC(w http.ResponseWriter) *TaskRelayContext {
+	return &TaskRelayContext{TenantID: 7, UserID: 9, Writer: w}
+}
+
+func decodeVideosJSON(t *testing.T, rec *httptest.ResponseRecorder) map[string]any {
+	t.Helper()
+	var m map[string]any
+	if err := json.Unmarshal(rec.Body.Bytes(), &m); err != nil {
+		t.Fatalf("decode json: %v, body=%s", err, rec.Body.String())
+	}
+	return m
+}
+
+func TestVideosStatusFromTask(t *testing.T) {
+	cases := map[string]string{
+		"NOT_START":   "queued",
+		"SUBMITTED":   "queued",
+		"QUEUED":      "queued",
+		"IN_PROGRESS": "in_progress",
+		"SUCCESS":     "completed",
+		"FAILURE":     "failed",
+		"WEIRD":       "queued",
+	}
+	for in, want := range cases {
+		if got := videosStatusFromTask(in); got != want {
+			t.Errorf("videosStatusFromTask(%q) = %q, want %q", in, got, want)
+		}
+	}
+}
+
+func TestVideosProgressFromTask(t *testing.T) {
+	makeTask := func(status, progress string) *common.AsyncTask {
+		return &common.AsyncTask{Status: status, Progress: progress}
+	}
+	if got := videosProgressFromTask(makeTask("IN_PROGRESS", "42%")); got != 42 {
+		t.Errorf("42%% → %d", got)
+	}
+	if got := videosProgressFromTask(makeTask("IN_PROGRESS", "150%")); got != 100 {
+		t.Errorf("150%% should clamp to 100, got %d", got)
+	}
+	if got := videosProgressFromTask(makeTask("IN_PROGRESS", "")); got != 50 {
+		t.Errorf("fallback in_progress → 50, got %d", got)
+	}
+	if got := videosProgressFromTask(makeTask("SUCCESS", "")); got != 100 {
+		t.Errorf("fallback success → 100, got %d", got)
+	}
+}
+
+func TestBuildVideoObject_SuccessWithEcho(t *testing.T) {
+	obj := buildVideoObject(newVideosTestTask())
+	if obj.ID != "video_abc" || obj.Object != "video" || obj.Status != "completed" || obj.Progress != 100 {
+		t.Fatalf("unexpected object: %+v", obj)
+	}
+	if obj.Model != "kling-v2-master" || obj.Prompt == nil || *obj.Prompt != "a cat" {
+		t.Fatalf("unexpected model/prompt: %+v", obj)
+	}
+	if obj.Seconds != "8" || obj.Size != "1280x720" {
+		t.Fatalf("expected echo seconds/size, got %q/%q", obj.Seconds, obj.Size)
+	}
+	if obj.CompletedAt == nil || *obj.CompletedAt != 1760000432 {
+		t.Fatalf("unexpected completed_at: %v", obj.CompletedAt)
+	}
+	if obj.Error != nil || obj.RemixedFromVideoID != nil || obj.ExpiresAt != nil {
+		t.Fatalf("nullables must be nil: %+v", obj)
+	}
+}
+
+func TestBuildVideoObject_Failure(t *testing.T) {
+	task := newVideosTestTask()
+	task.Status = "FAILURE"
+	task.Progress = "30%"
+	task.FailReason = "upstream exploded"
+	obj := buildVideoObject(task)
+	if obj.Status != "failed" || obj.Error == nil {
+		t.Fatalf("expected failed with error: %+v", obj)
+	}
+	if obj.Error.Code != "video_generation_failed" || obj.Error.Message != "upstream exploded" {
+		t.Fatalf("unexpected error object: %+v", obj.Error)
+	}
+}
+
+func TestHandleVideosRetrieve_FoundAndPollHeader(t *testing.T) {
+	task := newVideosTestTask()
+	task.Status = "IN_PROGRESS"
+	task.Progress = "42%"
+	task.FinishTime = nil
+
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: task}
+	HandleVideosRetrieve(context.Background(), "video_abc", videosTestRC(rec), provider)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, body=%s", rec.Code, rec.Body.String())
+	}
+	if got := rec.Header().Get("openai-poll-after-ms"); got != videosPollAfterMs {
+		t.Fatalf("expected poll header %q, got %q", videosPollAfterMs, got)
+	}
+	m := decodeVideosJSON(t, rec)
+	if m["status"] != "in_progress" || m["progress"] != float64(42) || m["object"] != "video" {
+		t.Fatalf("unexpected body: %s", rec.Body.String())
+	}
+}
+
+func TestHandleVideosRetrieve_TerminalNoPollHeader(t *testing.T) {
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: newVideosTestTask()}
+	HandleVideosRetrieve(context.Background(), "video_abc", videosTestRC(rec), provider)
+	if got := rec.Header().Get("openai-poll-after-ms"); got != "" {
+		t.Fatalf("terminal task must not carry poll header, got %q", got)
+	}
+}
+
+func TestHandleVideosRetrieve_NotFound(t *testing.T) {
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{}
+	HandleVideosRetrieve(context.Background(), "video_missing", videosTestRC(rec), provider)
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("expected 404, got %d", rec.Code)
+	}
+}
+
+func TestHandleVideosDelete_HappyPath(t *testing.T) {
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: newVideosTestTask()}
+	HandleVideosDelete(context.Background(), "video_abc", videosTestRC(rec), provider)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d, body=%s", rec.Code, rec.Body.String())
+	}
+	if provider.deleteCalls != 1 {
+		t.Fatalf("expected 1 soft delete call, got %d", provider.deleteCalls)
+	}
+	m := decodeVideosJSON(t, rec)
+	if m["object"] != "video.deleted" || m["deleted"] != true || m["id"] != "video_abc" {
+		t.Fatalf("unexpected body: %s", rec.Body.String())
+	}
+}
+
+func TestHandleVideosDelete_NonTerminalRejected(t *testing.T) {
+	task := newVideosTestTask()
+	task.Status = "IN_PROGRESS"
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: task}
+	HandleVideosDelete(context.Background(), "video_abc", videosTestRC(rec), provider)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400, got %d", rec.Code)
+	}
+	if provider.deleteCalls != 0 {
+		t.Fatal("must not delete non-terminal task")
+	}
+	if !strings.Contains(rec.Body.String(), "video_not_deletable") {
+		t.Fatalf("expected video_not_deletable code, body=%s", rec.Body.String())
+	}
+}
+
+func TestHandleVideosDelete_UnsettledRejected(t *testing.T) {
+	task := newVideosTestTask()
+	task.BillingSettled = false
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: task}
+	HandleVideosDelete(context.Background(), "video_abc", videosTestRC(rec), provider)
+
+	if rec.Code != http.StatusBadRequest || provider.deleteCalls != 0 {
+		t.Fatalf("expected 400 without delete, got %d calls=%d", rec.Code, provider.deleteCalls)
+	}
+	if !strings.Contains(rec.Body.String(), "billing_pending") {
+		t.Fatalf("expected billing_pending code, body=%s", rec.Body.String())
+	}
+}
+
+func TestHandleVideosDelete_NotFound(t *testing.T) {
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{}
+	HandleVideosDelete(context.Background(), "video_gone", videosTestRC(rec), provider)
+	if rec.Code != http.StatusNotFound || provider.deleteCalls != 0 {
+		t.Fatalf("expected 404 without delete, got %d", rec.Code)
+	}
+}
+
+func TestHandleVideosContent_StreamsBytes(t *testing.T) {
+	content := []byte("FAKE-MP4-BYTES")
+	upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "video/mp4")
+		w.Write(content)
+	}))
+	defer upstream.Close()
+
+	task := newVideosTestTask()
+	task.ResultURL = upstream.URL
+
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: task}
+	HandleVideosContent(context.Background(), "video_abc", "video", videosTestRC(rec), provider)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d, body=%s", rec.Code, rec.Body.String())
+	}
+	if ct := rec.Header().Get("Content-Type"); ct != "video/mp4" {
+		t.Fatalf("expected video/mp4 passthrough, got %q", ct)
+	}
+	if rec.Body.String() != string(content) {
+		t.Fatalf("body mismatch: %q", rec.Body.String())
+	}
+}
+
+func TestHandleVideosContent_VariantUnsupported(t *testing.T) {
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: newVideosTestTask()}
+	HandleVideosContent(context.Background(), "video_abc", "thumbnail", videosTestRC(rec), provider)
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400, got %d", rec.Code)
+	}
+}
+
+func TestHandleVideosContent_NotCompleted(t *testing.T) {
+	task := newVideosTestTask()
+	task.Status = "IN_PROGRESS"
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: task}
+	HandleVideosContent(context.Background(), "video_abc", "", videosTestRC(rec), provider)
+	if rec.Code != http.StatusBadRequest || !strings.Contains(rec.Body.String(), "video_not_ready") {
+		t.Fatalf("expected 400 video_not_ready, got %d body=%s", rec.Code, rec.Body.String())
+	}
+}
+
+func TestHandleVideosContent_NoResultURL(t *testing.T) {
+	task := newVideosTestTask()
+	task.ResultURL = ""
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: task}
+	HandleVideosContent(context.Background(), "video_abc", "", videosTestRC(rec), provider)
+	if rec.Code != http.StatusBadRequest || !strings.Contains(rec.Body.String(), "content_not_available") {
+		t.Fatalf("expected 400 content_not_available, got %d body=%s", rec.Code, rec.Body.String())
+	}
+}
+
+func TestHandleVideosContent_UpstreamFailure(t *testing.T) {
+	upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusForbidden)
+	}))
+	defer upstream.Close()
+
+	task := newVideosTestTask()
+	task.ResultURL = upstream.URL
+
+	rec := httptest.NewRecorder()
+	provider := &stubVideosTaskProvider{task: task}
+	HandleVideosContent(context.Background(), "video_abc", "", videosTestRC(rec), provider)
+	if rec.Code != http.StatusBadGateway {
+		t.Fatalf("expected 502, got %d", rec.Code)
+	}
+}
+
+func TestWriteVideosSubmitResponse(t *testing.T) {
+	rec := httptest.NewRecorder()
+	writeVideosSubmitResponse(rec, "video_new", "kling-v2-master", time.Unix(1760000000, 0), videosRequestEcho{Prompt: "p", Seconds: "8", Size: "720x1280"})
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d", rec.Code)
+	}
+	m := decodeVideosJSON(t, rec)
+	if m["id"] != "video_new" || m["object"] != "video" || m["status"] != "queued" || m["progress"] != float64(0) {
+		t.Fatalf("unexpected submit response: %s", rec.Body.String())
+	}
+	if m["seconds"] != "8" || m["size"] != "720x1280" {
+		t.Fatalf("expected echo fields: %s", rec.Body.String())
+	}
+}