diff --git a/packages/client/connection/src/client/fixture.ts b/packages/client/connection/src/client/fixture.ts
index e26b9098a6..d609009bc1 100644
--- a/packages/client/connection/src/client/fixture.ts
+++ b/packages/client/connection/src/client/fixture.ts
@@ -307,6 +307,7 @@ export function createFixtureApi(): ApiProxy {
       id: 'signals',
       header: '信号',
       question: '哪些面试信号最重要？',
+      detail: '按当前招聘目标选择；跳过则视为不设偏好。',
       multiSelect: true,
       options: [
         { label: '系统设计' },
diff --git a/packages/client/ui-question/src/client/QuestionComposer.module.css b/packages/client/ui-question/src/client/QuestionComposer.module.css
index 21cd664ee3..e41a76caae 100644
--- a/packages/client/ui-question/src/client/QuestionComposer.module.css
+++ b/packages/client/ui-question/src/client/QuestionComposer.module.css
@@ -59,6 +59,14 @@
   white-space: nowrap;
 }
 
+.detail {
+  margin: 2px 0 0;
+  color: var(--dsw-alias-label-tertiary);
+  font-size: 13px;
+  line-height: 20px;
+  font-weight: 400;
+}
+
 .headerActions,
 .footerActions {
   display: flex;
diff --git a/packages/client/ui-question/src/client/QuestionComposer.tsx b/packages/client/ui-question/src/client/QuestionComposer.tsx
index c85d731287..3571263f61 100644
--- a/packages/client/ui-question/src/client/QuestionComposer.tsx
+++ b/packages/client/ui-question/src/client/QuestionComposer.tsx
@@ -171,6 +171,7 @@ function QuestionFlow({ pending }: { pending: PendingQuestion }) {
                 : question.question}</span>
               {question.multiSelect === true && <span className={css.multiSelectHint}>可多选</span>}
             </h2>
+            {question.detail !== undefined && <p className={css.detail}>{question.detail}</p>}
           </div>
           <div className={css.headerActions}>
             <span className={css.progress}>{index + 1} / {questions.length}</span>
diff --git a/packages/client/ui-question/tests/question-composer.spec.tsx b/packages/client/ui-question/tests/question-composer.spec.tsx
index 87e6ad36b4..9a8ac9bb57 100644
--- a/packages/client/ui-question/tests/question-composer.spec.tsx
+++ b/packages/client/ui-question/tests/question-composer.spec.tsx
@@ -27,6 +27,7 @@ const kit = {
 const QUESTIONS = [
   {
     id: 'profile', header: '偏好', question: '选择候选人类型',
+    detail: '按当前空缺岗位的优先级选择。',
     options: [
       { label: '工程落地型 (Recommended)', description: '优先工程交付。' },
       { label: '研究潜力型', description: '优先研究能力。' },
@@ -64,11 +65,14 @@ describe('QuestionComposer', () => {
     expect(screen.getByText('1 / 3')).toBeTruthy()
     expect(screen.getByText('推荐')).toBeTruthy()
     expect(screen.getByText('工程落地型')).toBeTruthy()
+    expect(screen.getByText('按当前空缺岗位的优先级选择。')).toBeTruthy()
     fireEvent.keyDown(screen.getByRole('radio', { name: /工程落地型/ }), { key: 'Enter' })
     expect(respond).not.toHaveBeenCalled()
     fireEvent.click(screen.getByRole('radio', { name: /工程落地型/ }))
 
     expect(screen.getByText('2 / 3')).toBeTruthy()
+    // detail is per-question: the second question carries none.
+    expect(screen.queryByText('按当前空缺岗位的优先级选择。')).toBeNull()
     expect(screen.queryByRole('button', { name: '填写答案' })).toBeNull()
     const custom = screen.getByPlaceholderText('输入你的答案')
     fireEvent.change(custom, { target: { value: '要能独立排查线上问题' } })
diff --git a/packages/host/apiproxy/src/api/events.schema.ts b/packages/host/apiproxy/src/api/events.schema.ts
index 0e7dda1667..6d7e23765c 100644
--- a/packages/host/apiproxy/src/api/events.schema.ts
+++ b/packages/host/apiproxy/src/api/events.schema.ts
@@ -17,6 +17,7 @@ export const askUserQuestionItemSchema = z.object({
   id: z.string(),
   question: z.string(),
   header: z.string().optional(),
+  detail: z.string().optional(),
   options: z.array(z.object({ label: z.string(), description: z.string().optional() })).optional(),
   multiSelect: z.boolean().optional(),
 }) satisfies z.ZodType<Wire<AskUserQuestionItem>>