diff --git a/src/pages/ImageCanvas/YouthCreationCard.tsx b/src/pages/ImageCanvas/YouthCreationCard.tsx
index 6610758..e87e912 100644
--- a/src/pages/ImageCanvas/YouthCreationCard.tsx
+++ b/src/pages/ImageCanvas/YouthCreationCard.tsx
@@ -70,7 +70,12 @@ function canonicalCreatorPrompt(workspace: DesignWorkspace): string {
   const values = workspace.form.specification.values;
   return values.content.concept?.trim()
     || values.content.narrative?.trim()
-    || '';
+    || [
+      ...values.content.subjects.map((subject) => subject.description.trim()),
+      values.content.action?.trim(),
+      values.content.environment?.trim(),
+      values.content.emotional_tone?.trim(),
+    ].filter((value): value is string => Boolean(value)).join('，');
 }
 
 function Stepper({
@@ -141,7 +146,7 @@ export function YouthCreationCard({
   const [replaceIndex, setReplaceIndex] = useState<number | null>(null);
   const [uploading, setUploading] = useState(false);
   const [medium, setMedium] = useState(values.intent.media ?? 'image');
-  const [aspectRatio, setAspectRatio] = useState(values.output.aspect_ratio ?? '1:1');
+  const [aspectRatio, setAspectRatio] = useState(values.output.aspect_ratio ?? '');
   const [duration, setDuration] = useState(values.video.total_duration_seconds ?? 6);
   const [variantCount, setVariantCount] = useState(values.output.variant_count ?? 1);
   const promptRef = useRef<HTMLTextAreaElement>(null);
@@ -155,7 +160,7 @@ export function YouthCreationCard({
 
   useEffect(() => {
     setMedium(values.intent.media ?? 'image');
-    setAspectRatio(values.output.aspect_ratio ?? '1:1');
+    setAspectRatio(values.output.aspect_ratio ?? '');
     setDuration(values.video.total_duration_seconds ?? 6);
     setVariantCount(values.output.variant_count ?? 1);
   }, [
@@ -602,6 +607,7 @@ export function YouthCreationCard({
                 ], () => setAspectRatio(next));
               }}
             >
+              <option value="" disabled>请选择</option>
               {ASPECT_RATIOS.map((item) => <option key={item.value} value={item.value}>{item.label}</option>)}
             </Select>
           </label>
diff --git a/src/pages/ImageCanvas/plan-lifecycle.ts b/src/pages/ImageCanvas/plan-lifecycle.ts
index 634f3b8..33adb63 100644
--- a/src/pages/ImageCanvas/plan-lifecycle.ts
+++ b/src/pages/ImageCanvas/plan-lifecycle.ts
@@ -1,13 +1,22 @@
 import type { DesignWorkspace } from '../../../shared/image-workspace';
 
-function hasCreatorPrompt(workspace: DesignWorkspace): boolean {
+function hasCreatorMeaning(workspace: DesignWorkspace): boolean {
   const values = workspace.form.specification.values;
-  return Boolean(values.content.concept?.trim() || values.content.narrative?.trim());
+  return Boolean(
+    values.content.concept?.trim()
+    || values.content.narrative?.trim()
+    || values.content.action?.trim()
+    || values.content.environment?.trim()
+    || values.content.emotional_tone?.trim()
+    || values.content.subjects.some((subject) => subject.description.trim())
+    || values.content.exact_content.some((item) => item.text.trim())
+    || values.references.length > 0,
+  );
 }
 
 export function hasActiveCreationPlan(workspace: DesignWorkspace): boolean {
   if (workspace.form.activeQuotes.some((quote) => quote.status === 'offered')) return true;
-  if (!hasCreatorPrompt(workspace) && workspace.form.specification.values.references.length === 0) return false;
+  if (!hasCreatorMeaning(workspace)) return false;
   const latestTaskRevision = workspace.tasks.reduce(
     (latest, task) => Math.max(latest, task.specificationRevision),
     -1,
diff --git a/tests/unit/image-canvas-page.test.tsx b/tests/unit/image-canvas-page.test.tsx
index a313346..67d6497 100644
--- a/tests/unit/image-canvas-page.test.tsx
+++ b/tests/unit/image-canvas-page.test.tsx
@@ -192,6 +192,40 @@ describe('AI Design Canvas page', () => {
     expect(screen.queryByTestId('image-workspace-works-rail')).not.toBeInTheDocument();
   });
 
+  it('shows an incomplete meaningful plan and does not invent a selected aspect ratio', async () => {
+    const form = designFormFixture();
+    form.specification.values.content.concept = null;
+    form.specification.values.content.action = '一只狗和一只猫在草地上互相扑咬玩闹';
+    form.specification.values.output.aspect_ratio = null;
+    form.specification.values.output.orientation = 'portrait';
+    const { actions } = prepareWorkspace({ form });
+    useImageWorkspaceStore.setState({
+      quoteBlockers: [{
+        code: 'aspect_ratio_required',
+        message: 'Choose an aspect ratio before requesting a production quote.',
+        severity: 'blocker',
+        path: 'output.aspect_ratio',
+      }],
+    });
+
+    render(<ImageCanvas />);
+
+    expect(screen.getByRole('heading', { name: '制作方案' })).toBeInTheDocument();
+    expect(screen.getByText('先选择作品形状。')).toBeInTheDocument();
+    expect(screen.getByRole('combobox', { name: '画幅' })).toHaveValue('');
+    expect(screen.getByRole('button', { name: '准备制作方案' })).toBeDisabled();
+
+    fireEvent.change(screen.getByRole('combobox', { name: '画幅' }), {
+      target: { value: '9:16' },
+    });
+    await waitFor(() => {
+      expect(actions.applyFieldOperations).toHaveBeenCalledWith([
+        { kind: 'set', path: 'output.aspect_ratio', value: '9:16' },
+        { kind: 'set', path: 'output.orientation', value: 'portrait' },
+      ]);
+    });
+  });
+
   it('opens project navigation as a left sheet on compact layouts', () => {
     prepareWorkspace();
     render(<ImageCanvas />);