diff --git a/backend/shop/serializers.py b/backend/shop/serializers.py
index 59074fa..f343694 100644
--- a/backend/shop/serializers.py
+++ b/backend/shop/serializers.py
@@ -211,11 +211,13 @@ class VCCourseSerializer(serializers.ModelSerializer):
             return True
 
         # 检查是否已购买/报名 (通过已支付的订单)
-        return Order.objects.filter(
+        has_order = Order.objects.filter(
             wechat_user=user,
             course=obj,
             status__in=['paid', 'shipped', 'completed']
         ).exists()
+        
+        return has_order
 
     def get_is_purchased(self, obj):
         return self._check_purchased(obj)
diff --git a/frontend/src/api.js b/frontend/src/api.js
index 5d074ac..202ba2a 100644
--- a/frontend/src/api.js
+++ b/frontend/src/api.js
@@ -31,7 +31,7 @@ export const getServices = () => api.get('/services/');
 export const getServiceDetail = (id) => api.get(`/services/${id}/`);
 export const createServiceOrder = (data) => api.post('/service-orders/', data);
 export const getVCCourses = () => api.get('/courses/');
-export const getVCCourseDetail = (id) => api.get(`/courses/${id}/`);
+export const getVCCourseDetail = (id) => api.get(`/courses/${id}/`, { params: { _t: Date.now() } });
 export const enrollCourse = (data) => api.post('/course-enrollments/', data);
 
 export const sendSms = (data) => api.post('/auth/send-sms/', data);
diff --git a/frontend/src/pages/VCCourseDetail.jsx b/frontend/src/pages/VCCourseDetail.jsx
index 123f418..cdf3136 100644
--- a/frontend/src/pages/VCCourseDetail.jsx
+++ b/frontend/src/pages/VCCourseDetail.jsx
@@ -68,6 +68,7 @@ const VCCourseDetail = () => {
     const fetchDetail = async () => {
       try {
         const response = await getVCCourseDetail(id);
+        console.log('Course detail:', response.data);
         setCourse(response.data);
       } catch (error) {
         console.error("Failed to fetch course detail:", error);
diff --git a/miniprogram/src/api/index.ts b/miniprogram/src/api/index.ts
index 11eb6da..7078db5 100644
--- a/miniprogram/src/api/index.ts
+++ b/miniprogram/src/api/index.ts
@@ -28,7 +28,7 @@ export const createServiceOrder = (data: any) => {
 
 // VB Courses
 export const getVBCourses = () => request({ url: '/courses/' })
-export const getVBCourseDetail = (id: number) => request({ url: `/courses/${id}/` })
+export const getVBCourseDetail = (id: number) => request({ url: `/courses/${id}/?_t=${Date.now()}` })
 
 // Distributor
 export const distributorRegister = (data: any) => {
diff --git a/miniprogram/src/pages/courses/detail.scss b/miniprogram/src/pages/courses/detail.scss
index baabb2e..9381841 100644
--- a/miniprogram/src/pages/courses/detail.scss
+++ b/miniprogram/src/pages/courses/detail.scss
@@ -118,6 +118,7 @@
       font-size: 32px;
       margin-bottom: 30px;
       font-weight: bold;
+      text-align: center;
     }
     
     .btn-unlock {
diff --git a/miniprogram/src/pages/courses/detail.tsx b/miniprogram/src/pages/courses/detail.tsx
index 6e04ae8..0fb3042 100644
--- a/miniprogram/src/pages/courses/detail.tsx
+++ b/miniprogram/src/pages/courses/detail.tsx
@@ -20,7 +20,9 @@ export default function CourseDetail() {
 
   const fetchDetail = async (id: string) => {
     try {
+      // Add timestamp to prevent caching
       const res: any = await getVBCourseDetail(Number(id))
+      console.log('Course detail:', res)
       setDetail(res)
     } catch (err) {
       console.error(err)