diff --git a/app/canvas/[id]/page.tsx b/app/canvas/[id]/page.tsx
index c0495e780..130a4ab28 100644
--- a/app/canvas/[id]/page.tsx
+++ b/app/canvas/[id]/page.tsx
@@ -103,6 +103,7 @@ import {
 } from "@/lib/agents/mode-workspace-state";
 import {
   createEmptyAgentGenerationProjectPersistedState,
+  createEmptyAgentWorkflowPersistedState,
   createEmptyAgentGenerationProjectWorkspaceState,
   normalizeAgentGenerationProjectPersistedState,
 } from "@/lib/agents/generation-project-state";
@@ -840,7 +841,7 @@ export default function CanvasEditorPage({ params }: PageProps) {
       try {
         const result = await agentProjectService.createProject({
           title: buildDefaultAgentProjectTitle(),
-          projectState: persistedAgentProjectStateRef.current,
+          projectState: createEmptyAgentGenerationProjectPersistedState(),
         });
         if (!result.success || !result.data) {
           throw new Error(result.error || "创建生图项目失败");
@@ -889,12 +890,8 @@ export default function CanvasEditorPage({ params }: PageProps) {
         const persistedState = normalizeAgentGenerationProjectPersistedState(
           result.data.projectState
         );
-        const currentWorkflowState = currentWorkflowPersistedStateRef.current;
-        const persistedWorkflow = hasMeaningfulWorkflowState(persistedState.workflowState)
-          ? persistedState.workflowState
-          : hasMeaningfulWorkflowState(currentWorkflowState)
-            ? currentWorkflowState
-            : persistedState.workflowState;
+        const persistedWorkflow =
+          persistedState.workflowState || createEmptyAgentWorkflowPersistedState();
 
         setWorkflowInputs({
           primarySku: String(persistedWorkflow.inputs?.primarySku || "").trim(),
@@ -1883,7 +1880,7 @@ export default function CanvasEditorPage({ params }: PageProps) {
     return (
       <AgentGenerationWorkspaceDarkV2
         chatId={agentModeChatId}
-        projectId={id}
+        projectId={agentProjectId || id}
         selectedAgentPresetId={isAgentWorkspaceEnabled ? selectedAgentPresetId : null}
         selectedBrandModel={selectedBrandModel}
         workflowContext={workflowContext}
diff --git a/components/agents/AgentGenerationWorkspaceDarkV2.tsx b/components/agents/AgentGenerationWorkspaceDarkV2.tsx
index 4ad849ec0..578ef545a 100644
--- a/components/agents/AgentGenerationWorkspaceDarkV2.tsx
+++ b/components/agents/AgentGenerationWorkspaceDarkV2.tsx
@@ -894,6 +894,11 @@ export function AgentGenerationWorkspaceDarkV2({
   const lastSyncedDetailModelSlotKeyRef = useRef<string | null>(null);
   const detailGenerationCancelRef = useRef(false);
   const workspaceStateSignatureRef = useRef<string>("");
+  const generationRequestSnapshotRef = useRef<{
+    hiddenPrompt: string | null;
+  }>({
+    hiddenPrompt: null,
+  });
   const [localAgentModeState, setLocalAgentModeState] = useState<AgentModeWorkspaceState>(
     () => createEmptyAgentModeWorkspaceState()
   );
@@ -1379,7 +1384,10 @@ export function AgentGenerationWorkspaceDarkV2({
           body: {
             id: rawChatId,
             message: request.messages.at(-1),
-            hiddenPrompt: hiddenPromptRef.current || undefined,
+            hiddenPrompt:
+              generationRequestSnapshotRef.current.hiddenPrompt ||
+              hiddenPromptRef.current ||
+              undefined,
             agentPresetId:
               transportState.selectedAgentPresetId || selectedAgentPresetId || undefined,
             selectedChatModel:
@@ -1439,6 +1447,25 @@ export function AgentGenerationWorkspaceDarkV2({
   ]);
 
   // 初始化附件
+  useEffect(() => {
+    workspaceStateSignatureRef.current = "";
+    lastSyncedProductSlotKeysRef.current = [];
+    lastSyncedBrandModelUrlRef.current = null;
+    lastSyncedDetailProductSlotKeysRef.current = [];
+    lastSyncedDetailBundleSlotKeysRef.current = [];
+    lastSyncedDetailModelSlotKeyRef.current = null;
+    setInput("");
+    setAttachments([]);
+    setSelectedResultUrl(null);
+    setFullscreenPreview(null);
+    setPendingGeneration(null);
+    setImageParams({
+      aspectRatio: "auto",
+      imageSize: "2K",
+      imageCount: 1,
+    });
+  }, [projectId]);
+
   useEffect(() => {
     if (!hasAgentUploadSlots) {
       setAttachments((current) => (current.length === 0 ? current : []));
@@ -1471,20 +1498,12 @@ export function AgentGenerationWorkspaceDarkV2({
         (_, index) => current[index] || null
       );
       for (let index = 0; index < productSlotCount; index += 1) {
-        const currentSlot = result[index];
         const nextAttachment = nextSlots[index];
-        const currentSlotKey = getAttachmentIdentityKey(currentSlot);
         const previousSyncedKey = lastSyncedProductSlotKeysRef.current[index] || null;
-        const currentIsPreviousAutoSelection =
-          Boolean(previousSyncedKey) && currentSlotKey === previousSyncedKey;
-        const currentIsBrandModel =
-          currentSlotKey ? brandModelAttachmentKeys.has(currentSlotKey) : false;
 
         if (nextAttachment) {
-          if (!currentSlot || currentIsPreviousAutoSelection || currentIsBrandModel) {
-            result[index] = nextAttachment as PickedAttachment;
-          }
-        } else if (currentIsPreviousAutoSelection || currentIsBrandModel) {
+          result[index] = nextAttachment as PickedAttachment;
+        } else if (previousSyncedKey) {
           result[index] = null;
         }
       }
@@ -1528,11 +1547,7 @@ export function AgentGenerationWorkspaceDarkV2({
       const currentSlot = modelSlotIndex >= 0 ? slots[modelSlotIndex] ?? null : null;
       const previousSyncedUrl = lastSyncedBrandModelUrlRef.current;
 
-      if (
-        modelSlotIndex >= 0 &&
-        nextAttachment &&
-        (!currentSlot || currentSlot.url === previousSyncedUrl)
-      ) {
+      if (modelSlotIndex >= 0 && nextAttachment) {
         slots[modelSlotIndex] = nextAttachment;
       } else if (modelSlotIndex >= 0 && previousSyncedUrl && currentSlot?.url === previousSyncedUrl) {
         slots[modelSlotIndex] = null;
@@ -2457,9 +2472,13 @@ export function AgentGenerationWorkspaceDarkV2({
       toast.error("请至少补充要求或上传图片");
       return;
     }
-    hiddenPromptRef.current = workflowContext?.promptText
+    const nextHiddenPrompt = workflowContext?.promptText
       ? `【工作流设定】\n${workflowContext.promptText}\n\n请严格遵循以上工作流设定输出内容，并保持整体结果一致。`
       : null;
+    hiddenPromptRef.current = nextHiddenPrompt;
+    generationRequestSnapshotRef.current = {
+      hiddenPrompt: nextHiddenPrompt,
+    };
     setActiveResultModeType(currentResultModeType);
     setSelectedResultUrl(null);
     setPendingGeneration({
@@ -2478,6 +2497,9 @@ export function AgentGenerationWorkspaceDarkV2({
       sendMessage({ role: "user", parts });
       setInput("");
     } catch (error) {
+      generationRequestSnapshotRef.current = {
+        hiddenPrompt: null,
+      };
       setPendingGeneration(null);
       toast.error(error instanceof Error ? error.message : "发送生成请求失败");
     }
diff --git a/components/agents/AgentWorkflowPanelDarkV2.tsx b/components/agents/AgentWorkflowPanelDarkV2.tsx
index 336b62184..d12ab6721 100644
--- a/components/agents/AgentWorkflowPanelDarkV2.tsx
+++ b/components/agents/AgentWorkflowPanelDarkV2.tsx
@@ -417,6 +417,11 @@ export function AgentWorkflowPanelDarkV2({
     ] as const);
     return new Map(entries);
   }, [resolvedConfig.steps, selections]);
+  const [autoAdvanceNotice, setAutoAdvanceNotice] = useState<{
+    completedStepTitle: string;
+    completedSummary: string;
+    nextStepTitle: string;
+  } | null>(null);
   const [activeEmbeddedStepKey, setActiveEmbeddedStepKey] = useState<string>("");
   const [activeEmbeddedOptionDepth, setActiveEmbeddedOptionDepth] = useState(1);
   const [pendingAutoAdvanceStepKey, setPendingAutoAdvanceStepKey] = useState<string | null>(null);
@@ -519,6 +524,12 @@ export function AgentWorkflowPanelDarkV2({
       );
 
     if (nextStep && nextStep.step.key !== activeEmbeddedStepKey) {
+      setAutoAdvanceNotice({
+        completedStepTitle: activeEmbeddedStepEntry.step.title,
+        completedSummary:
+          stepSelectionSummaryMap[activeEmbeddedStepEntry.step.key] || "已完成当前步骤选择",
+        nextStepTitle: nextStep.step.title,
+      });
       setActiveEmbeddedStepKey(nextStep.step.key);
       setActiveEmbeddedOptionDepth(1);
     }
@@ -532,8 +543,21 @@ export function AgentWorkflowPanelDarkV2({
     flattenedResolvedSteps,
     pendingAutoAdvanceStepKey,
     selections,
+    stepSelectionSummaryMap,
   ]);
 
+  useEffect(() => {
+    if (!autoAdvanceNotice) {
+      return;
+    }
+
+    const timer = window.setTimeout(() => {
+      setAutoAdvanceNotice(null);
+    }, 3200);
+
+    return () => window.clearTimeout(timer);
+  }, [autoAdvanceNotice]);
+
   const renderOptionLevels = (
     step: AgentWorkflowUiConfig["steps"][number],
     options: AgentWorkflowUiConfig["steps"][number]["options"],
@@ -700,6 +724,7 @@ export function AgentWorkflowPanelDarkV2({
                                 type="button"
                                 onClick={() => {
                                   setPendingAutoAdvanceStepKey(null);
+                                  setAutoAdvanceNotice(null);
                                   setActiveEmbeddedStepKey(step.key);
                                 }}
                                 className="group relative flex min-w-0 flex-col items-start pr-2 text-left transition-transform duration-200 hover:-translate-y-[1px]"
@@ -717,11 +742,11 @@ export function AgentWorkflowPanelDarkV2({
                                   >
                                     {stepIndex + 1}
                                   </span>
-                                  <span
-                                    className={cn(
-                                      "truncate text-[13px] font-semibold transition-colors",
-                                      active
-                                        ? "text-white"
+                                <span
+                                  className={cn(
+                                    "truncate text-[13px] font-semibold transition-colors",
+                                    active
+                                      ? "text-white"
                                         : completed
                                           ? "text-white/82"
                                           : "text-white/52 group-hover:text-white/76"
@@ -729,6 +754,11 @@ export function AgentWorkflowPanelDarkV2({
                                   >
                                     {step.title}
                                   </span>
+                                  {active ? (
+                                    <span className="rounded-full border border-emerald-300/30 bg-emerald-400/10 px-2 py-0.5 text-[10px] font-medium text-emerald-200">
+                                      当前步骤
+                                    </span>
+                                  ) : null}
                                 </div>
                                 <span
                                   className={cn(
@@ -773,6 +803,44 @@ export function AgentWorkflowPanelDarkV2({
 
                     {activeEmbeddedOptionLevel ? (
                       <div className="space-y-4">
+                        {autoAdvanceNotice ? (
+                          <motion.div
+                            key={`${autoAdvanceNotice.completedStepTitle}-${autoAdvanceNotice.nextStepTitle}`}
+                            initial={{ opacity: 0, y: -10, scale: 0.98 }}
+                            animate={{ opacity: 1, y: 0, scale: 1 }}
+                            exit={{ opacity: 0 }}
+                            className="rounded-2xl border border-emerald-300/16 bg-[linear-gradient(135deg,rgba(16,185,129,0.12),rgba(6,10,12,0.86))] px-4 py-3 shadow-[0_14px_40px_rgba(0,0,0,0.28)]"
+                          >
+                            <div className="flex flex-wrap items-center gap-2 text-sm font-semibold text-white">
+                              <span className="flex h-7 w-7 items-center justify-center rounded-full bg-emerald-300 text-black">
+                                <Check className="h-4 w-4" />
+                              </span>
+                              <span>已完成「{autoAdvanceNotice.completedStepTitle}」</span>
+                              <ArrowRight className="h-4 w-4 text-emerald-200/80" />
+                              <span className="text-emerald-200">已自动切换到「{autoAdvanceNotice.nextStepTitle}」</span>
+                            </div>
+                            <div className="mt-1 pl-9 text-xs leading-5 text-emerald-50/72">
+                              刚刚完成的内容：{autoAdvanceNotice.completedSummary}
+                            </div>
+                          </motion.div>
+                        ) : null}
+
+                        <div className="rounded-2xl border border-emerald-300/12 bg-emerald-400/[0.05] px-4 py-3">
+                          <div className="flex flex-wrap items-center gap-2">
+                            <span className="rounded-full border border-emerald-300/24 bg-emerald-400/10 px-2.5 py-1 text-[11px] font-medium text-emerald-200">
+                              当前正在选择
+                            </span>
+                            <span className="text-sm font-semibold text-white">
+                              {activeEmbeddedStepEntry.step.title}
+                            </span>
+                          </div>
+                          <div className="mt-1 text-xs leading-5 text-emerald-50/68">
+                            {activeEmbeddedOptionLevel.depth === 1
+                              ? "当前区域展示的是这个步骤的主卡片。选中后系统会继续切到该步骤的下一级，或自动进入下一个步骤。"
+                              : `当前区域展示的是「${activeEmbeddedStepEntry.step.title}」的第 ${activeEmbeddedOptionLevel.depth} 级子卡片，不是上一个已完成步骤的卡片。`}
+                          </div>
+                        </div>
+
                         <div className="flex items-center gap-2">
                           <span className="rounded-full border border-white/12 px-2.5 py-1 text-[11px] font-medium text-white/45">
                             {activeEmbeddedOptionLevel.depth === 1