优化全能创作

core/backend/apps/ai/creation_agent.py

@@ -65,6 +65,8 @@ CREATION_AGENT_MODEL_TIMEOUT_SECONDS = 180
 CREATION_AGENT_TURN_TIMEOUT_SECONDS = 420
 # 输出被 max_tokens 截断后最多让模型重写几次;再失败就明确告诉用户,不再闷着重试到超时。
 MAX_TRUNCATION_RETRIES = 2
+# 已明确要求推进创作时，模型若只回说明文字而没调工具，最多强制纠正两次。
+MAX_PROGRESS_TOOL_RETRIES = 2
 LONG_VIDEO_DURATION_SLACK_SECONDS = 2
 # 单条用户消息最多触发一次计费生成(契约 §4)
 MAX_BILLED_GENERATIONS = 1
@@ -145,6 +147,16 @@ TRUNCATION_GIVE_UP_NOTICE = (
     "可以把时长改短一点，或直接点「按这个继续」让我按更紧凑的结构重写一次。"
 )
 
+PROGRESS_TOOL_RETRY_INSTRUCTION = (
+    "用户已经明确授权继续创作，本轮不能用说明文字、建议或‘继续完善方案’结束。"
+    "信息不足就调用 ask_user；信息足够就立即调用 write_strategy，并在同一轮继续调用 write_plan，"
+    "最终必须落下可见的视频架构卡。不要输出工具调用以外的解释文字。"
+)
+
+PROGRESS_TOOL_GIVE_UP_NOTICE = (
+    "这次没有成功整理出视频方案，已经停止。请把刚才的要求再发一次，我会直接生成方案卡。"
+)
+
 
 def long_video_script_covers_requested_duration(
     raw_duration: int | None,
@@ -195,6 +207,17 @@ def set_public_agent_progress(
     ):
         return
     history = list(memory.get("agent_progress_history") or [])
+    # reasoning 可能在「理解需求 / 商品 / 角色」之间来回切换。再次回到同一阶段时
+    # 把旧位置移除后放到末尾，既保留当前顺序，也不让加载卡重复刷同一句话。
+    history = [
+        item
+        for item in history
+        if not (
+            isinstance(item, dict)
+            and str(item.get("phase") or "") == phase
+            and str(item.get("detail_key") or "") == detail_key
+        )
+    ]
     history.append({"phase": phase, "detail_key": detail_key})
     memory["agent_progress_history"] = history[-12:]
     memory["agent_progress_phase"] = phase
@@ -1446,6 +1469,70 @@ def build_cast_role_briefs(count: int, appearance_prompt: str = "") -> list[str]
     return [_character_only_appearance_text(item)[:500] for item in briefs[:count]]
 
 
+_FEMALE_CAST_WORDS = r"女性|女生|女人|女孩|女演员|女模特|女士|女主|妈妈|母亲|女儿|姐姐|妹妹"
+_MALE_CAST_WORDS = r"男性|男生|男人|男孩|男演员|男模特|男士|男主|爸爸|父亲|儿子|哥哥|弟弟"
+_CAST_COUNT_WORDS = {"一": 1, "1": 1, "两": 2, "二": 2, "2": 2, "三": 3, "3": 3, "四": 4, "4": 4}
+
+
+def _cast_gender_from_text(text: str) -> str:
+    """只读明确的角色性别描述；不从商品或风格词推断。"""
+    female = bool(re.search(_FEMALE_CAST_WORDS, text))
+    male = bool(re.search(_MALE_CAST_WORDS, text))
+    if female == male:
+        return ""
+    return "女性" if female else "男性"
+
+
+def _shared_cast_gender_from_text(text: str, total: int) -> str:
+    """仅当文本明确说整组角色同一性别时，才把性别约束复制给每张定妆图。"""
+    matches = re.finditer(
+        rf"(?<!\d)([一1两二2三3四4])\s*(?:位|名|个|人)?\s*(?:成年|年轻|中年|年长)?\s*"
+        rf"({_FEMALE_CAST_WORDS}|{_MALE_CAST_WORDS})",
+        text,
+    )
+    genders = {
+        _cast_gender_from_text(match.group(2))
+        for match in matches
+        if _CAST_COUNT_WORDS.get(match.group(1)) == total
+    }
+    genders.discard("")
+    if len(genders) == 1:
+        return genders.pop()
+    if genders:
+        return ""
+    if total == 2:
+        if re.search(r"母女|姐妹|闺蜜|双女主", text) and not re.search(r"父子|兄弟|双男主|一男一女|男女主", text):
+            return "女性"
+        if re.search(r"父子|兄弟|双男主", text) and not re.search(r"母女|姐妹|闺蜜|双女主|一男一女|男女主", text):
+            return "男性"
+    return ""
+
+
+def _cast_gender_requirements(
+    conversation: CreationConversation,
+    role_briefs: list[str],
+    appearance_prompt: str,
+) -> list[str]:
+    """外观输入优先，其次读取已确认的视频 Prompt；只传性别，不带商品文案。"""
+    total = len(role_briefs)
+    memory = conversation.memory if isinstance(conversation.memory, dict) else {}
+    sources = [
+        appearance_prompt,
+        str(memory.get("pending_video_prompt") or ""),
+    ]
+    if getattr(conversation, "created_at", None):
+        sources.extend(
+            str(item or "")
+            for item in conversation.messages.filter(role=CreationMessage.Role.USER)
+            .order_by("-seq").values_list("text", flat=True)[:6]
+        )
+    shared = next(
+        (gender for source in sources if (gender := _shared_cast_gender_from_text(source, total))),
+        "",
+    )
+    return [_cast_gender_from_text(brief) or shared for brief in role_briefs]
+
+
 
 def _build_single_person_reference_prompt(
     *,
@@ -1454,6 +1541,7 @@ def _build_single_person_reference_prompt(
     context_brief: str,
     cast_index: int,
     cast_total: int,
+    gender_requirement: str = "",
 ) -> tuple[str, str, str]:
     """返回 (prompt, generating_label, model_name)。"""
     is_pet = is_pet_preset(conversation.preset)
@@ -1486,9 +1574,13 @@ def _build_single_person_reference_prompt(
         model_name = "平台生成宠物角色"
     else:
         role_tag = f"第{cast_index}位/共{cast_total}位" if cast_total > 1 else "唯一"
+        gender_instruction = (
+            f"这位角色必须是成年{gender_requirement}，外貌和性别不得改变。"
+            if gender_requirement else ""
+        )
         prompt = (
             f"为短视频生成一张可反复用于锁定身份的真人模特定妆参考图（{role_tag}出镜角色）。"
-            "只出现一位成年人物，正面或轻微三分之四角度，中近景，表情自然，"
+            f"只出现一位成年人物。{gender_instruction}正面或轻微三分之四角度，中近景，表情自然，"
             "五官、发型、肤色、身形和服装细节清晰，简洁中性背景，写实摄影，"
             "不要文字、水印、拼图、多人、遮挡脸部或夸张滤镜。"
             f"{no_product}"
@@ -1497,7 +1589,7 @@ def _build_single_person_reference_prompt(
             prompt += f" 用户指定的人物外观：{appearance_only}。严格保留这些外观要求。"
         if cast_total > 1:
             prompt += (
-                f" 这是多人物视频中的角色{cast_index}，必须与其他角色在性别或发型或年龄段或服装气质上"
+                f" 这是多人物视频中的角色{cast_index}，必须与其他角色在发型、年龄段或服装气质上"
                 "有清晰可辨的差异，便于整片锁脸。"
             )
             label = f"正在生成人物参考（{cast_index}/{cast_total}）"
@@ -1542,6 +1634,7 @@ def submit_generated_person_reference(
     if is_pet_preset(conversation.preset):
         total = 1
     role_briefs = build_cast_role_briefs(total, raw_appearance)
+    gender_requirements = _cast_gender_requirements(conversation, role_briefs, raw_appearance)
 
     memory = dict(conversation.memory or {})
     memory["person_source"] = "platform_generate"
@@ -1566,6 +1659,7 @@ def submit_generated_person_reference(
             context_brief=context_brief,
             cast_index=index,
             cast_total=total,
+            gender_requirement=gender_requirements[index - 1],
         )
         tasks = enqueue_standalone_images(
             team=conversation.team,
@@ -1876,6 +1970,8 @@ VIDEO_MODEL_BY_LABEL = {
     "Seedance 2.0 Fast": "doubao-seedance-2-0-fast-260128",
     "Seedance 2.0 Mini": "doubao-seedance-2-0-mini-260615",
 }
+FAST_VIDEO_MODEL = "doubao-seedance-2-0-fast-260128"
+FAST_VIDEO_MODEL_LABEL = "Seedance 2.0 Fast"
 DEFAULT_VIDEO_MODEL = "doubao-seedance-2-5-260628"
 IMAGE_MODEL_BY_LABEL = {
     "Seedream5.0": "volcano",
@@ -2588,6 +2684,7 @@ _CONTINUE_INTENT_RE = re.compile(
     r"^\s*("
     r"继续|继续做|接着|接着做|往下做|开始吧|开做吧|就这样|就按这个|按这个来|照这个做|直接做|直接来|"
     r"继续完善方案|完善方案|继续创作|继续推进|往下推进|"
+    r"推荐|推荐一下|你来推荐|帮我推荐|按你推荐(?:的)?|你来定|你决定|按你来|你看着办|随便|都行|"
     r"按当前描述继续|按这个继续|没有其他调整[，,]?按当前描述继续|"
     r"使用这[个位只]角色继续创作|使用这[个位只]宠物角色继续创作"
     r")[吧啊呀呢。.！!]*\s*$"
@@ -2873,6 +2970,7 @@ def apply_session_params(conversation, fields, answers: dict) -> bool:
     current = dict(conversation.params or {})
     field_by_key = {str(item.get("key") or ""): item for item in (fields or []) if isinstance(item, dict)}
     changed = False
+    model_user_selected = False
     for key, raw in (answers or {}).items():
         field = field_by_key.get(str(key)) or {}
         if field.get("type") == "asset":
@@ -2889,9 +2987,17 @@ def apply_session_params(conversation, fields, answers: dict) -> bool:
                 value = f"{MAX_VIDEO_DURATION} 秒"
         current[stored] = value
         changed = True
+        if stored == "model":
+            model_user_selected = True
     if changed:
         conversation.params = current
-        conversation.save(update_fields=["params", "updated_at"])
+        update_fields = ["params", "updated_at"]
+        if model_user_selected and conversation.mode == CreationConversation.Mode.VIDEO:
+            memory = dict(conversation.memory or {})
+            memory["video_model_user_selected"] = True
+            conversation.memory = memory
+            update_fields.append("memory")
+        conversation.save(update_fields=update_fields)
         if is_plot_twist_conversation(conversation):
             # 用户在参数卡里改了时长，剧情结构也必须立即跟着切换。
             set_plot_twist_story_depth(conversation, str(current.get("duration") or ""))
@@ -2958,11 +3064,17 @@ def apply_confirm_params(conversation, incoming: dict | None) -> tuple[dict, boo
     )
     if changed:
         conversation.params = current
-        conversation.save(update_fields=["params", "updated_at"])
-        if is_plot_twist_conversation(conversation):
+        update_fields = ["params", "updated_at"]
+        if model_changed:
+            memory = dict(conversation.memory or {})
+            memory["video_model_user_selected"] = True
+            conversation.memory = memory
+            update_fields.append("memory")
+        conversation.save(update_fields=update_fields)
+        if duration_changed and is_plot_twist_conversation(conversation):
             # 在确认卡改时长也要切换故事契约；随后视图会要求重写旧方案。
             set_plot_twist_story_depth(conversation, str(current.get("duration") or ""))
-    needs_rebuild = duration_changed or model_changed
+    needs_rebuild = duration_changed
     if needs_rebuild:
         # 角色和商品素材继续保留；只让 GPT 基于新参数重写受影响的架构与 Prompt。
         set_video_gate_stage(conversation, "strategy", clear_pending_prompt=True)
@@ -3616,17 +3728,20 @@ def resolve_smart_video_duration(
         params["duration"] = f"{duration} 秒"
     selected_model = video_model_name(params)
     switched = False
-    # Seedance 2.5 是当前唯一可稳定承载 16–30 秒单段、以及 31–180 秒分段的模型。
-    # 总时长不在单段能力表里时，后续会拆成多条 <=30 秒的 2.5 任务。
-    if duration > 15 and selected_model != DEFAULT_VIDEO_MODEL:
-        params["model"] = "Seedance 2.5"
+    memory = dict(conversation.memory or {})
+    model_user_selected = bool(memory.get("video_model_user_selected"))
+    # 默认按目标时长选模型：15 秒及以下优先 Fast，超过 15 秒使用 2.5。
+    # 用户在最终确认卡手动换过模型后尊重其选择；只有能力不支持时才自动回退。
+    preferred_model = FAST_VIDEO_MODEL if duration <= 15 else DEFAULT_VIDEO_MODEL
+    preferred_label = FAST_VIDEO_MODEL_LABEL if duration <= 15 else "Seedance 2.5"
+    if not model_user_selected and selected_model != preferred_model:
+        params["model"] = preferred_label
         switched = True
     elif not _model_supports_duration(selected_model, duration):
-        # 智能模式可自动选能完成完整脚本的模型；确认卡会清楚展示变更，用户仍能手动调整。
-        if _model_supports_duration(DEFAULT_VIDEO_MODEL, duration):
-            params["model"] = "Seedance 2.5"
+        if _model_supports_duration(preferred_model, duration):
+            params["model"] = preferred_label
             switched = True
-    memory = dict(conversation.memory or {})
+            memory.pop("video_model_user_selected", None)
     memory["smart_duration_resolved"] = duration
     if switched:
         memory["smart_duration_model_switched"] = True
@@ -4980,6 +5095,7 @@ def iter_creation_agent_events(
         turn_deadline = turn_started + CREATION_AGENT_TURN_TIMEOUT_SECONDS
         extra_body = creation_model_extra_body(model_config, tools)
         truncation_retries = 0
+        progress_tool_retries = 0
         for _round in range(MAX_TOOL_ROUNDS):
             if is_agent_cancel_requested(conversation.id):
                 # 用户终止:干净收束,不落 ERROR,已落库消息保留
@@ -5199,6 +5315,27 @@ def iter_creation_agent_events(
                             turn_has_gate = True
                 break
 
+            # 用户已经明确说「推荐 / 继续 / 做方案」，模型却只回一段说明文字时，
+            # 不能把加载状态正常收起后只留“继续完善方案”。把这一轮文本作废并强制重试工具调用，
+            # 直到真正落下追问卡或视频架构卡。
+            if not calls and allow_plan and context.is_video and not fallback_fields:
+                progress_tool_retries += 1
+                if progress_tool_retries <= MAX_PROGRESS_TOOL_RETRIES:
+                    if said:
+                        messages.append({"role": "assistant", "content": said})
+                    messages.append({"role": "user", "content": PROGRESS_TOOL_RETRY_INSTRUCTION})
+                    continue
+                clear_public_agent_progress(conversation)
+                failure = append_message(
+                    conversation,
+                    role="assistant",
+                    kind=CreationMessage.Kind.ERROR,
+                    text=PROGRESS_TOOL_GIVE_UP_NOTICE,
+                )
+                yield {"type": "message", "message": _message_payload(failure)}
+                yield {"type": "done"}
+                return
+
             # ask_user 自己会落一条可追踪的聊天问题。模型同时吐出的过渡文案不再
             # 另存一条,否则界面会连续出现两遍几乎相同的问题。
             asks_user = bool(fallback_fields) or any(call.get("name") == "ask_user" for call in calls)

core/backend/apps/ai/serializers.py

@@ -233,7 +233,17 @@ class CreationConversationSerializer(serializers.ModelSerializer):
         # 兼容服务端升级前已开始的轮次：至少显示当前一条进度。
         if not history or history[-1] != progress:
             history.append(progress)
-        progress["history"] = history[-12:]
+        # 兼容升级前已经存下的重复历史：同一句只保留最后出现的位置，
+        # 保证当前阶段仍位于列表末尾。
+        seen: set[tuple[str, str]] = set()
+        unique_reversed: list[dict[str, str]] = []
+        for item in reversed(history):
+            key = (str(item.get("label") or ""), str(item.get("detail") or ""))
+            if key in seen:
+                continue
+            seen.add(key)
+            unique_reversed.append(item)
+        progress["history"] = list(reversed(unique_reversed))[-12:]
         return progress
 
     def update(self, instance, validated_data):

core/backend/apps/ai/test_creation_agent.py

@@ -55,6 +55,7 @@ from .creation_agent import (
     creation_agent_timeout_notice,
     long_video_script_covers_requested_duration,
     plan_video_segments,
+    resolve_smart_video_duration,
     is_continue_intent,
     is_greeting,
     is_pure_chitchat,
@@ -741,6 +742,36 @@ class PersonReferenceCompletionTests(CreationAgentBaseTests):
         self.assertEqual(self.conversation.memory.get("person_cast_total"), 2)
         self.assertEqual(self.conversation.memory.get("person_cast_pending"), 2)
 
+    def test_video_prompt_two_adult_women_applies_to_both_character_images(self):
+        """用户未额外填写外观时，视频 Prompt 的两位女性约束不能在生图阶段丢失。"""
+        self.conversation.memory = {
+            "pending_video_prompt": "这是一条剧情视频，两位成年女性分别出镜，展示商品使用前后。",
+        }
+        self.conversation.save(update_fields=["memory", "updated_at"])
+        tasks = [
+            AITask.objects.create(
+                team=self.team,
+                created_by=self.user,
+                task_type=AITask.Type.PERSON_IMAGE,
+                model_config=self.model,
+                idempotency_key=f"k-two-women-{index}",
+            )
+            for index in (1, 2)
+        ]
+        with patch("apps.ai.services.enqueue_standalone_images", side_effect=[[tasks[0]], [tasks[1]]]) as enqueue:
+            messages = submit_generated_person_reference(
+                conversation=self.conversation,
+                user=self.user,
+            )
+
+        self.assertEqual(len(messages), 2)
+        self.assertEqual(enqueue.call_count, 2)
+        for call in enqueue.call_args_list:
+            prompt = call.kwargs["prompt"]
+            self.assertIn("必须是成年女性", prompt)
+            self.assertNotIn("性别或发型", prompt)
+            self.assertNotIn("商品使用前后", prompt)
+
 
 class SendEndpointTests(TestCase):
     def setUp(self):
@@ -1602,6 +1633,48 @@ class VideoPlanAndConfirmTests(CreationAgentBaseTests):
         self.conversation.refresh_from_db()
         self.assertEqual(self.conversation.params["duration"], "120 秒")
 
+    def test_short_video_defaults_to_fast_model(self):
+        self.conversation.params = {
+            **self.conversation.params,
+            "duration": "15 秒",
+            "model": "Seedance 2.5",
+        }
+        self.conversation.memory = {}
+        self.conversation.save(update_fields=["params", "memory", "updated_at"])
+
+        resolve_smart_video_duration(self.conversation)
+
+        self.conversation.refresh_from_db()
+        self.assertEqual(self.conversation.params["model"], "Seedance 2.0 Fast")
+
+    def test_longer_video_defaults_to_seedance_25(self):
+        self.conversation.params = {
+            **self.conversation.params,
+            "duration": "30 秒",
+            "model": "Seedance 2.0 Fast",
+        }
+        self.conversation.memory = {}
+        self.conversation.save(update_fields=["params", "memory", "updated_at"])
+
+        resolve_smart_video_duration(self.conversation)
+
+        self.conversation.refresh_from_db()
+        self.assertEqual(self.conversation.params["model"], "Seedance 2.5")
+
+    def test_short_video_keeps_manually_selected_model(self):
+        self.conversation.params = {
+            **self.conversation.params,
+            "duration": "15 秒",
+            "model": "Seedance 2.5",
+        }
+        self.conversation.memory = {"video_model_user_selected": True}
+        self.conversation.save(update_fields=["params", "memory", "updated_at"])
+
+        resolve_smart_video_duration(self.conversation)
+
+        self.conversation.refresh_from_db()
+        self.assertEqual(self.conversation.params["model"], "Seedance 2.5")
+
     def test_planning_exposes_safe_progress_not_raw_reasoning(self):
         self.conversation.agent_status = CreationConversation.AgentStatus.PLANNING
         self.conversation.save(update_fields=["agent_status", "updated_at"])
@@ -1624,6 +1697,22 @@ class VideoPlanAndConfirmTests(CreationAgentBaseTests):
         self.conversation.save(update_fields=["agent_status", "updated_at"])
         self.assertIsNone(CreationConversationDetailSerializer(self.conversation).data["agent_progress"])
 
+    def test_planning_progress_deduplicates_revisited_steps(self):
+        self.conversation.agent_status = CreationConversation.AgentStatus.PLANNING
+        self.conversation.save(update_fields=["agent_status", "updated_at"])
+        set_public_agent_progress(self.conversation, "starting")
+        set_public_agent_progress(self.conversation, "reasoning", detail_key="brief")
+        set_public_agent_progress(self.conversation, "reasoning", detail_key="product")
+        set_public_agent_progress(self.conversation, "reasoning", detail_key="brief")
+        set_public_agent_progress(self.conversation, "write_plan")
+
+        data = CreationConversationDetailSerializer(self.conversation).data
+        details = [item["detail"] for item in data["agent_progress"]["history"]]
+
+        self.assertEqual(len(details), len(set(details)))
+        self.assertEqual(details.count("正在理解这次创作的重点和限制"), 1)
+        self.assertEqual(details[-1], "正在安排分段节奏，并锁定角色和商品的一致性")
+
     def test_shot_timeline_does_not_override_session_duration(self):
         changed = apply_explicit_video_duration_from_text(
             self.conversation,
@@ -2484,6 +2573,42 @@ class VideoPlanAndConfirmTests(CreationAgentBaseTests):
         ])
         self.assertEqual(len(fake.calls), 2)
 
+    def test_recommendation_reply_cannot_finish_without_a_plan_card(self):
+        self._pin_product("补水精华水")
+        self._pin_person()
+        self.conversation.memory = {
+            "selling_point_ready": True,
+            "selling_point_mode": "auto",
+            "product_brief_reviewed": True,
+        }
+        self.conversation.save(update_fields=["memory", "updated_at"])
+        fake = FakeProvider([
+            _text_chunks("可以回复继续完善方案，我再为你整理。"),
+            _tool_chunks("write_strategy", {
+                "target": "通勤护肤人群",
+                "trust": "真实上脸补水过程",
+                "belief": "肤感清爽且方便日常补水",
+                "direction": "自然生活流体验",
+            }),
+            _tool_chunks("write_plan", self._plan_args()),
+        ])
+
+        with patch("apps.ai.creation_agent.build_provider", return_value=fake):
+            events = _events(stream_creation_agent(
+                conversation=self.conversation,
+                user=self.user,
+                text="推荐",
+                model_config=self.model,
+            ))
+
+        messages = [event["message"] for event in events if event.get("type") == "message"]
+        self.assertTrue(any(message["kind"] == "plan" for message in messages))
+        self.assertFalse(any(
+            message["kind"] == "text" and "继续完善方案" in message.get("text", "")
+            for message in messages
+        ))
+        self.assertEqual(len(fake.calls), 3)
+
     def test_multiple_characters_do_not_interrupt_architecture_writing(self):
         product = Product.objects.create(team=self.team, created_by=self.user, title="蓝牙耳机")
         characters = [
@@ -2960,6 +3085,26 @@ class ConfirmEndpointTests(TestCase):
             {"kind": "confirm", "reply_to": str(self.card.id)}, format="json",
         )
 
+    def _pin_person_reference(self):
+        portrait = Asset.objects.create(
+            team=self.team,
+            created_by=self.user,
+            name="确认参数测试角色",
+            asset_type=Asset.Type.IMAGE,
+            category=Asset.Category.PERSON,
+        )
+        AssetFile.objects.create(
+            asset=portrait,
+            object_key="confirm-person.jpg",
+            bucket="test",
+            preview_url="https://cdn.example/confirm-person.jpg",
+            is_primary=True,
+        )
+        self.conversation.pinned_refs = [
+            {"type": "character", "id": str(portrait.id), "name": portrait.name}
+        ]
+        self.conversation.save(update_fields=["pinned_refs", "updated_at"])
+
     def test_confirm_twice_is_refused(self):
         provider = ModelProvider.objects.create(name="fk2", display_name="F", base_url="https://x")
         model = ModelConfig.objects.create(
@@ -3037,7 +3182,8 @@ class ConfirmEndpointTests(TestCase):
         self.card.refresh_from_db()
         self.assertTrue(self.card.payload["submitted"])
 
-    def test_confirm_model_change_rebuilds_architecture_before_submitting(self):
+    def test_confirm_model_change_without_duration_change_submits_directly(self):
+        self._pin_person_reference()
         self.conversation.params = {
             "model": "Seedance 2.0 Fast", "resolution": "480p",
             "ratio": "1:1", "duration": "8 秒",
@@ -3060,13 +3206,14 @@ class ConfirmEndpointTests(TestCase):
                             "resolution": "720p", "ratio": "1:1"}},
                 format="json",
             )
-        self.assertEqual(response.status_code, 200)
-        self.assertTrue(response.json().get("regenerate"))
-        submit.assert_not_called()
+        self.assertEqual(response.status_code, 201, response.content)
+        self.assertFalse(response.json().get("regenerate", False))
+        submit.assert_called_once()
         self.conversation.refresh_from_db()
-        self.assertEqual((self.conversation.memory or {}).get("stage"), "strategy")
+        self.assertNotEqual((self.conversation.memory or {}).get("stage"), "strategy")
 
-    def test_confirm_ignores_duration_spacing_when_model_changes(self):
+    def test_confirm_ignores_duration_spacing_and_submits_model_change_directly(self):
+        self._pin_person_reference()
         self.conversation.params = {
             "model": "Seedance 2.0 Fast", "resolution": "480p",
             "ratio": "9:16", "duration": "8秒",
@@ -3089,9 +3236,9 @@ class ConfirmEndpointTests(TestCase):
                             "resolution": "720p", "ratio": "9:16"}},
                 format="json",
             )
-        self.assertEqual(response.status_code, 200)
-        self.assertTrue(response.json().get("regenerate"))
-        submit.assert_not_called()
+        self.assertEqual(response.status_code, 201, response.content)
+        self.assertFalse(response.json().get("regenerate", False))
+        submit.assert_called_once()
 
 
 class MemoryCompressionTests(CreationAgentBaseTests):
@@ -3618,6 +3765,10 @@ class CreativeIntentTests(SimpleTestCase):
             "完善方案",
             "继续创作",
             "使用这个角色继续创作",
+            "推荐",
+            "你来推荐",
+            "按你来",
+            "你看着办",
         ):
             self.assertTrue(is_continue_intent(text), text)
 

core/backend/apps/ai/views.py

@@ -2551,7 +2551,7 @@ class CreationConversationViewSet(TeamScopedViewSetMixin, ModelViewSet):
                 "params": latest_params,
             }
             card.save(update_fields=["payload", "updated_at"])
-            # 改时长或视频模型会影响能力与 Prompt。保留事实/素材，只重写受影响步骤。
+            # 只有改时长会影响既有时间轴。模型、分辨率和比例可直接用于当前出片指令。
             if needs_rebuild:
                 return JsonResponse({
                     "regenerate": True,

core/frontend/src/api.ts

@@ -613,7 +613,13 @@ export const api = {
    * video_prompt 直接提交,同步返回「生成中」消息,之后靠轮询转成结果。
    */
   confirmCreationPlan(id: string, replyTo: string, params?: Record<string, string>) {
-    return request<{ message?: CreationMessage; regenerate?: boolean; params?: Record<string, string> }>(
+    return request<{
+      message?: CreationMessage;
+      messages?: CreationMessage[];
+      regenerate?: boolean;
+      params?: Record<string, string>;
+      agent_status?: CreationConversationDetail["agent_status"];
+    }>(
       `/api/ai/creations/${id}/send/`,
       {
         method: "POST",

core/frontend/src/dark-mode-pages.css

@@ -1119,6 +1119,39 @@ html[data-theme="dark"] .omni-session-page .omni-process-card {
   box-shadow: none;
 }
 
+/* 生成中不是空白占位图：用一层深色渲染画布和内框说明工作仍在进行。 */
+html[data-theme="dark"] .omni-session-page .omni-process-card .omni-process-frame {
+  position: relative;
+  isolation: isolate;
+  overflow: hidden;
+  background: var(--background-lighter);
+  animation: none;
+}
+html[data-theme="dark"] .omni-session-page .omni-process-card .omni-process-ring {
+  border-color: var(--heat-20);
+  border-top-color: var(--heat);
+}
+html[data-theme="dark"] .omni-session-page .omni-process-card .omni-process-frame strong {
+  color: var(--accent-black);
+}
+html[data-theme="dark"] .omni-session-page .omni-process-card .omni-process-meta {
+  color: var(--black-alpha-48);
+  font-family: var(--font-mono);
+  font-size: 10px;
+  letter-spacing: .06em;
+  line-height: 1;
+}
+html[data-theme="dark"] .omni-session-page .omni-process-card .omni-result-info {
+  border-top: 1px solid var(--border-faint);
+  background: var(--surface);
+}
+html[data-theme="dark"] .omni-session-page .omni-process-card .omni-result-info strong {
+  color: var(--accent-black);
+}
+html[data-theme="dark"] .omni-session-page .omni-process-card .omni-result-info small {
+  color: var(--black-alpha-56);
+}
+
 /* 确认生成卡的参数条仍复用浅色页的控件基样式；在深色会话里单独收回到工作面的层级。
    禁用态保留可读性，但不再出现白色输入框。 */
 html[data-theme="dark"] .omni-session-page .omni-confirm-params .rs-select-btn,

core/frontend/src/omni-session-page.css

@@ -412,6 +412,24 @@
   max-width: 340px;
 }
 
+/* 多角色按生成顺序逐张揭示；已完成角色与当前生成卡横向排，空间不足自动换行。 */
+.omni-person-reference-flow {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: flex-start;
+  gap: 12px;
+  width: min(760px, calc(100% - 44px));
+  margin: 0 0 24px 44px;
+}
+
+.omni-person-reference-flow > .omni-result-card,
+.omni-person-reference-flow > .omni-process-card {
+  flex: 0 1 236px;
+  width: min(236px, 100%);
+  max-width: 236px;
+  margin: 0;
+}
+
 .omni-strategy-card,
 .omni-video-plan-card,
 .omni-prompt-file-card,
@@ -1500,6 +1518,11 @@
     margin-left: 0;
   }
 
+  .omni-person-reference-flow {
+    width: 100%;
+    margin-left: 0;
+  }
+
   .omni-strategy-grid,
   .omni-plan-points,
   .omni-plan-timeline,
@@ -1868,6 +1891,13 @@
   outline: none;
 }
 
+.omni-elicit-field input[type="text"]:disabled {
+  border-color: var(--black-alpha-12);
+  background: var(--black-alpha-5);
+  color: var(--black-alpha-32);
+  cursor: not-allowed;
+}
+
 .omni-elicit-assets {
   display: grid;
   grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));

core/frontend/src/routes/omni-create.tsx

@@ -173,8 +173,11 @@ export function OmniCreatePage({
       setRatio("1:1");
       setDuration("1 张");
     } else {
-      const vid = findCatalogModel(modelConfigs, "", "video");
-      const label = vid ? (vid.display_name || vid.name) : "Seedance 2.5";
+      const vid = (
+        findCatalogModel(modelConfigs, "doubao-seedance-2-0-fast-260128", "video")
+        || findCatalogModel(modelConfigs, "Seedance 2.0 Fast", "video")
+      );
+      const label = vid ? (vid.display_name || vid.name) : "Seedance 2.0 Fast";
       const resList = modelResolutions(vid);
       setModel(label);
       setResolution(resList.includes("720p") ? "720p" : (resList[0] || "1080p"));

core/frontend/src/routes/omni-session.tsx

@@ -1352,6 +1352,7 @@ function ElicitCard({
   const [chatAnswer, setChatAnswer] = useState("");
   const [personPromptOpen, setPersonPromptOpen] = useState(false);
   const [personPrompt, setPersonPrompt] = useState("");
+  const productBriefNoteRef = useRef<HTMLInputElement>(null);
 
   useEffect(() => {
     if (submitted || interaction === "chat" || interaction === "step_confirm") return;
@@ -1415,8 +1416,9 @@ function ElicitCard({
             <div className="omni-gate-actions" aria-label={isPet ? "宠物角色来源选择" : "人物来源选择"}>
               <button
                 type="button"
-                className="primary"
+                className={personPromptOpen ? "" : "primary"}
                 disabled={disabled}
+                aria-pressed={!personPromptOpen}
                 onClick={() => onPersonSourceAction("local_upload")}
               >
                 本地上传
@@ -1430,8 +1432,10 @@ function ElicitCard({
               </button>
               <button
                 type="button"
+                className={personPromptOpen ? "primary" : ""}
                 disabled={disabled}
                 aria-expanded={personPromptOpen}
+                aria-pressed={personPromptOpen}
                 onClick={() => setPersonPromptOpen((open) => !open)}
               >
                 平台帮忙生成
@@ -1901,11 +1905,31 @@ function ElicitCard({
                         type="button"
                         key={option.value}
                         className={active ? "active" : ""}
-                        onClick={() =>
-                          field.type === "multi"
-                            ? toggleMulti(field.key, option.value)
-                            : setAnswers((prev) => ({ ...prev, [field.key]: option.value }))
-                        }
+                        disabled={disabled || submitted}
+                        onClick={() => {
+                          if (field.type === "multi") {
+                            toggleMulti(field.key, option.value);
+                            return;
+                          }
+                          setAnswers((prev) => {
+                            const next = { ...prev, [field.key]: option.value };
+                            if (
+                              interaction === "product_brief_review"
+                              && field.key === "review_action"
+                              && option.value !== "supplement"
+                            ) {
+                              next.product_brief_note = "";
+                            }
+                            return next;
+                          });
+                          if (
+                            interaction === "product_brief_review"
+                            && field.key === "review_action"
+                            && option.value === "supplement"
+                          ) {
+                            requestAnimationFrame(() => productBriefNoteRef.current?.focus());
+                          }
+                        }}
                       >
                         {option.label}
                       </button>
@@ -1915,10 +1939,23 @@ function ElicitCard({
               )}
               {field.type === "text" && (
                 <input
+                  ref={
+                    interaction === "product_brief_review" && field.key === "product_brief_note"
+                      ? productBriefNoteRef
+                      : undefined
+                  }
                   type="text"
                   placeholder={field.placeholder || ""}
                   value={typeof value === "string" ? value : ""}
-                  disabled={submitted}
+                  disabled={
+                    disabled
+                    || submitted
+                    || (
+                      interaction === "product_brief_review"
+                      && field.key === "product_brief_note"
+                      && answers.review_action !== "supplement"
+                    )
+                  }
                   onChange={(event) =>
                     setAnswers((prev) => ({ ...prev, [field.key]: event.target.value }))
                   }
@@ -2026,15 +2063,13 @@ function ConfirmCard({
   const snapshot = { ...sessionParams, ...payloadParams };
   const [draft, setDraft] = useState(snapshot);
   const [initialDuration] = useState(snapshot.duration || "");
-  const [initialModel] = useState(snapshot.model || "");
   const cardIsVideo = message.payload.kind !== "image" && isVideo;
   const durationChanged =
     cardIsVideo
     && Boolean(draft.duration)
     && Boolean(initialDuration)
     && normalizeDurationValue(draft.duration) !== normalizeDurationValue(initialDuration);
-  const modelChanged = cardIsVideo && Boolean(initialModel) && Boolean(draft.model) && draft.model !== initialModel;
-  const needsRebuild = durationChanged || modelChanged;
+  const needsRebuild = durationChanged;
   const durationSeconds = Number(String(draft.duration || "").replace(/\D/g, ""));
   const willGenerateInSegments = cardIsVideo && durationSeconds > 30 && durationSeconds <= 60;
   const generationPlan = (message.payload.generation_plan as Record<string, unknown> | undefined) || {};
@@ -2072,7 +2107,7 @@ function ConfirmCard({
     : generationPhase === "failed" ? "可重新确认方案后再生成"
     : generationPhase === "running" ? "正在出片，请稍候"
     : generationPhase === "submitted" ? "正在提交生成"
-    : "确认前可以改参数。改时长或模型会同步更新视频架构与 Prompt。";
+    : "确认前可以改参数。只有改时长时会同步更新视频架构与 Prompt。";
   const foot =
     generationPhase === "done" ? "已完成出片"
     : generationPhase === "failed" ? "出片失败"
@@ -2111,7 +2146,7 @@ function ConfirmCard({
         </div>
       )}
       {submitted ? null : needsRebuild ? (
-        <p className="omni-confirm-hint">参数变化会同步更新受影响的视频架构与 Prompt，不会直接出片。</p>
+        <p className="omni-confirm-hint">时长变化会同步更新受影响的视频架构与 Prompt，不会直接出片。</p>
       ) : willGenerateInSegments ? (
         <p className="omni-confirm-hint">
           {draft.duration === snapshot.duration && generationPlan.note
@@ -2439,7 +2474,11 @@ function mergeMessagePreserveLocal(prevHit: CreationMessage | undefined, msg: Cr
  * 合并服务端快照时保留尚未 ack 的乐观气泡，并稳住未变消息的对象引用。
  * local 只对上「本轮新出现」的服务端用户消息，绝不按正文吞历史。
  */
-function keepUnackedLocals(prev: CreationMessage[], incoming: CreationMessage[]): CreationMessage[] {
+function keepUnackedLocals(
+  prev: CreationMessage[],
+  incoming: CreationMessage[],
+  pendingSinceSeq: number,
+): CreationMessage[] {
   const prevById = new Map(prev.map((m) => [m.id, m]));
   const locals = prev.filter((m) => isLocalUserId(m.id));
   if (!locals.length) {
@@ -2463,18 +2502,14 @@ function keepUnackedLocals(prev: CreationMessage[], incoming: CreationMessage[])
     }
     return merged;
   }
-  const knownServerIds = new Set(
-    prev.filter((m) => !isLocalUserId(m.id)).map((m) => m.id)
-  );
-  const knownSeq = lastKnownServerSeq(prev);
   const used = new Set<string>();
   const merged = incoming.map((msg) => {
     const prevHit = prevById.get(msg.id);
     let withKey = mergeMessagePreserveLocal(prevHit, msg);
     if (msg.role !== "user") return withKey;
-    const isNewServerUser =
-      !knownServerIds.has(msg.id) && serverSeq(msg) > knownSeq;
-    if (!isNewServerUser) return withKey;
+    // 确认角色等短路径会先返回 seq 更大的确认卡，用户消息稍后才在详情快照里出现。
+    // 应以发送前的 seq 判断是否属于本轮，不能用此刻列表的最大 seq。
+    if (serverSeq(msg) <= pendingSinceSeq) return withKey;
     const local = locals.find((item) => !used.has(item.id) && sameUserBubble(item, msg));
     if (!local) return withKey;
     used.add(local.id);
@@ -2534,6 +2569,51 @@ function withoutLegacyGateArtifacts(
   return hidden.size ? list.filter((message) => !hidden.has(message.id)) : list;
 }
 
+function isMultiPersonReferenceCard(message: CreationMessage): boolean {
+  return (
+    (message.kind === "generating" || message.kind === "result")
+    && message.payload?.kind === "person_reference"
+    && Number(message.payload?.cast_total || 1) > 1
+  );
+}
+
+/**
+ * 多角色任务可以在后台并行，但对话流按角色顺序逐个揭示：当前角色完成后，
+ * 才展示下一张生成卡。已经揭示的结果和当前进度归为一组，交给 flex 横向排列。
+ */
+function groupVisibleCreationMessages(list: CreationMessage[]): CreationMessage[][] {
+  const groups: CreationMessage[][] = [];
+  let index = 0;
+  while (index < list.length) {
+    const message = list[index];
+    if (!isMultiPersonReferenceCard(message)) {
+      groups.push([message]);
+      index += 1;
+      continue;
+    }
+
+    const castTotal = Number(message.payload?.cast_total || 1);
+    const batch: CreationMessage[] = [];
+    let cursor = index;
+    while (
+      cursor < list.length
+      && isMultiPersonReferenceCard(list[cursor])
+      && Number(list[cursor].payload?.cast_total || 1) === castTotal
+    ) {
+      batch.push(list[cursor]);
+      cursor += 1;
+    }
+    const currentGeneratingIndex = batch.findIndex((item) => item.kind === "generating");
+    groups.push(
+      currentGeneratingIndex >= 0
+        ? batch.slice(0, currentGeneratingIndex + 1)
+        : batch,
+    );
+    index = cursor;
+  }
+  return groups;
+}
+
 function ProcessCard({
   payload,
 }: {
@@ -2554,6 +2634,7 @@ function ProcessCard({
           <div className="omni-process-frame" aria-hidden="true">
             <span className="omni-process-ring" />
             <strong>{isVideo ? "视频生成中" : "图片生成中"}</strong>
+            <span className="omni-process-meta">[ RENDERING ]</span>
           </div>
         </figure>
       </div>
@@ -2765,7 +2846,7 @@ export function OmniSessionPage({
         if (cancelled) return;
         setConversation(detail);
         // 保留尚未 ack 的乐观用户气泡,避免进页种子/发送中的气泡被首包冲掉
-        setMessages((prev) => keepUnackedLocals(prev, detail.messages || []));
+        setMessages((prev) => keepUnackedLocals(prev, detail.messages || [], pendingSinceSeqRef.current));
         if (bootLocalIdRef.current && pendingUserIdRef.current === bootLocalIdRef.current) {
           const boot = makeLocalUserMessage(
             firstMessage?.trim() || "",
@@ -2894,10 +2975,26 @@ export function OmniSessionPage({
     ),
     [conversation?.agent_started_at, conversation?.agent_status, messages],
   );
+  const visibleMessageGroups = useMemo(
+    () => groupVisibleCreationMessages(visibleMessages),
+    [visibleMessages],
+  );
   const currentPlanningHasError = Boolean(
     conversation && hasCurrentPlanningError(conversation)
   );
-  const visibleProgressHistory = conversation?.agent_progress?.history || [];
+  const visibleProgressHistory = useMemo(() => {
+    const history = conversation?.agent_progress?.history || [];
+    const seen = new Set<string>();
+    const uniqueReversed = [] as typeof history;
+    for (let index = history.length - 1; index >= 0; index -= 1) {
+      const item = history[index];
+      const key = `${item.label}\u0000${item.detail}`;
+      if (seen.has(key)) continue;
+      seen.add(key);
+      uniqueReversed.push(item);
+    }
+    return uniqueReversed.reverse();
+  }, [conversation?.agent_progress?.history]);
   useEffect(() => {
     const log = thinkingLogRef.current;
     if (log) log.scrollTop = log.scrollHeight;
@@ -2967,7 +3064,7 @@ export function OmniSessionPage({
         .then((detail) => {
           if (cancelled) return;
           setConversation(detail);
-          setMessages((prev) => keepUnackedLocals(prev, detail.messages || []));
+          setMessages((prev) => keepUnackedLocals(prev, detail.messages || [], pendingSinceSeqRef.current));
         })
         .catch(() => {
           /* 轮询失败静默重试,不打扰用户 */
@@ -2994,7 +3091,7 @@ export function OmniSessionPage({
       }
       return detail;
     });
-    setMessages((prev) => keepUnackedLocals(prev, detail.messages || []));
+    setMessages((prev) => keepUnackedLocals(prev, detail.messages || [], pendingSinceSeqRef.current));
     if (localId && pendingUserIdRef.current === localId) {
       // 必须是「发送之后」新出现的用户消息，不能靠正文撞上历史气泡
       const acked = detail.messages.some(
@@ -3202,7 +3299,12 @@ export function OmniSessionPage({
             }
             return next;
           });
-          if (localId && pendingUserIdRef.current === localId) {
+          const userAcknowledged = (result.messages || []).some((message) =>
+            message.role === "user"
+            && serverSeq(message) > pendingSinceSeqRef.current
+            && (message.text || "") === (payload.text || "")
+          );
+          if (localId && userAcknowledged && pendingUserIdRef.current === localId) {
             pendingUserIdRef.current = null;
             setPendingUserId(null);
           }
@@ -3347,18 +3449,20 @@ export function OmniSessionPage({
   const handleConfirm = async (message: CreationMessage, nextParams: Record<string, string>) => {
     if (confirming) return;
     setConfirming(true);
+    // 提交视频前还要同步完成素材检查和上游任务创建，可能需要数秒。
+    // 先把确认卡切成「正在提交」，不能让用户面对一张毫无变化的可点击卡片。
+    setMessages((prev) =>
+      prev.map((item) =>
+        item.id === message.id
+          ? { ...item, payload: { ...item.payload, submitted: true, params: nextParams } }
+          : item
+      )
+    );
+    setConversation((prev) =>
+      prev ? { ...prev, params: { ...prev.params, ...nextParams } } : prev
+    );
     try {
       const result = await api.confirmCreationPlan(conversationId, message.id, nextParams);
-      setMessages((prev) =>
-        prev.map((m) =>
-          m.id === message.id
-            ? { ...m, payload: { ...m.payload, submitted: true, params: nextParams } }
-            : m
-        )
-      );
-      setConversation((prev) =>
-        prev ? { ...prev, params: { ...prev.params, ...nextParams } } : prev
-      );
       if (result.regenerate) {
         notify("info", "参数已更新，正在同步视频架构与 Prompt");
         void send({
@@ -3367,11 +3471,38 @@ export function OmniSessionPage({
         });
         return;
       }
+      if (result.messages?.length) {
+        // 兼容旧确认卡：服务端可能把本次确认改道到补角色步骤，并重开确认卡。
+        // 拉服务端快照，避免本地乐观的 submitted 状态盖住新步骤。
+        const detail = await api.getCreation(conversationId);
+        mergeCreationDetail(detail);
+        return;
+      }
       if (result.message) {
         setMessages((prev) => [...prev, result.message as CreationMessage]);
       }
     } catch (error) {
-      notify("error", (error as Error).message);
+      let recovered = false;
+      try {
+        // 响应断开不等于提交失败：以后端快照为准，防止用户再次点击造成重复出片。
+        const detail = await api.getCreation(conversationId);
+        const remoteCard = detail.messages.find((item) => item.id === message.id);
+        recovered = Boolean(remoteCard?.payload?.submitted);
+        mergeCreationDetail(detail);
+      } catch {
+        setMessages((prev) =>
+          prev.map((item) =>
+            item.id === message.id
+              ? { ...item, payload: { ...item.payload, submitted: false } }
+              : item
+          )
+        );
+      }
+      if (recovered) {
+        notify("info", "生成任务已提交，正在处理");
+      } else {
+        notify("error", (error as Error).message);
+      }
     } finally {
       setConfirming(false);
     }
@@ -3733,7 +3864,15 @@ export function OmniSessionPage({
         </button>
 
         <main className="omni-session-feed" ref={feedRef} aria-live="polite">
-          {visibleMessages.map(renderMessage)}
+          {visibleMessageGroups.map((group) => {
+            const isPersonReferenceGroup = group.some(isMultiPersonReferenceCard);
+            if (!isPersonReferenceGroup) return renderMessage(group[0]);
+            return (
+              <div className="omni-person-reference-flow" key={`person-reference-${group[0].id}`}>
+                {group.map(renderMessage)}
+              </div>
+            );
+          })}
           {/* 流式中的临时气泡。挂 is-live 关掉入场动画 —— 它每来一个字符都会
               重渲染,带动画的话整条会一直在闪;真消息落地时它被替换掉,
               那一下也不该再演一次入场。 */}