diff --git a/backend/community/views.py b/backend/community/views.py
index 93ad050..aea131f 100644
--- a/backend/community/views.py
+++ b/backend/community/views.py
@@ -89,14 +89,19 @@ class ActivityViewSet(viewsets.ReadOnlyModelViewSet):
                 order = pending_order
                 # Update info if needed? Maybe not.
             else:
+                # 优先从报名信息获取联系方式
+                contact_name = signup_info.get('name') or signup_info.get('participant_name') or user.nickname or 'Activity User'
+                contact_phone = signup_info.get('phone') or user.phone_number or ''
+                
                 order = Order.objects.create(
                     wechat_user=user,
                     activity=activity,
                     total_price=activity.price,
                     status='pending',
                     quantity=1,
-                    customer_name=signup_info.get('name') or user.nickname or 'Activity User',
-                    phone_number=signup_info.get('phone') or user.phone_number or '',
+                    customer_name=contact_name,
+                    phone_number=contact_phone,
+                    shipping_address=activity.location or '线下活动', # 使用活动地点作为发货地址
                 )
 
             # Generate Pay Code
@@ -109,7 +114,7 @@ class ActivityViewSet(viewsets.ReadOnlyModelViewSet):
                 return Response({'error': f'支付配置错误: {error_msg}'}, status=500)
                 
             code, message = wxpay.pay(
-                description=f"报名: {activity.title}",
+                description=f"报名活动: {activity.title}",
                 out_trade_no=out_trade_no,
                 amount={
                     'total': int(activity.price * 100),
diff --git a/backend/config/settings.py b/backend/config/settings.py
index 1bb69af..0b5b667 100644
--- a/backend/config/settings.py
+++ b/backend/config/settings.py
@@ -100,8 +100,8 @@ DATABASES = {
 }
 
 # 从环境变量获取数据库配置 (Docker 环境会自动注入这些变量)
-# DB_HOST = os.environ.get('DB_HOST', '121.43.104.161')
-DB_HOST = os.environ.get('DB_HOST', '6.6.6.66')
+DB_HOST = os.environ.get('DB_HOST', '121.43.104.161')
+# DB_HOST = os.environ.get('DB_HOST', '6.6.6.66')
 if DB_HOST:
     DATABASES['default'] = {
         'ENGINE': 'django.db.backends.postgresql',
@@ -109,8 +109,8 @@ if DB_HOST:
         'USER': os.environ.get('DB_USER', 'market'),
         'PASSWORD': os.environ.get('DB_PASSWORD', '123market'),
         'HOST': DB_HOST,
-        #'PORT': os.environ.get('DB_PORT', '6433'),
-        'PORT': os.environ.get('DB_PORT', '5432'),
+        'PORT': os.environ.get('DB_PORT', '6433'),
+        #'PORT': os.environ.get('DB_PORT', '5432'),
     }
 
 
diff --git a/frontend/src/pages/activity/Detail.jsx b/frontend/src/pages/activity/Detail.jsx
index ae2f49f..8f1ae86 100644
--- a/frontend/src/pages/activity/Detail.jsx
+++ b/frontend/src/pages/activity/Detail.jsx
@@ -93,10 +93,15 @@ const ActivityDetail = () => {
   const signUpMutation = useMutation({
     mutationFn: (values) => signUpActivity(id, { signup_info: values || {} }),
     onSuccess: (data) => {
+      // 检查是否需要支付
       if (data.payment_required) {
          setPaymentInfo(data);
-         setPaymentModalVisible(true);
+         // 先关闭报名表单，确保层级正确
          setSignupFormVisible(false);
+         // 延迟一点点时间打开支付弹窗，避免状态更新冲突
+         setTimeout(() => {
+            setPaymentModalVisible(true);
+         }, 100);
          message.info(data.message || '请扫码支付');
          return;
       }
@@ -471,12 +476,15 @@ const ActivityDetail = () => {
         footer={null}
         destroyOnHidden
         width={360}
+        zIndex={1001} // 确保层级高于其他弹窗
       >
          <div style={{ textAlign: 'center', padding: '20px 0' }}>
             {paymentInfo?.code_url ? (
                 <>
-                    <QRCodeSVG value={paymentInfo.code_url} size={200} />
-                    <p style={{ marginTop: 20, fontSize: 16, fontWeight: 'bold' }}>¥{paymentInfo.price}</p>
+                    <div style={{ background: '#fff', padding: 10, display: 'inline-block' }}>
+                        <QRCodeSVG value={paymentInfo.code_url} size={200} />
+                    </div>
+                    <p style={{ marginTop: 20, fontSize: 18, fontWeight: 'bold' }}>¥{paymentInfo.price}</p>
                     <p style={{ color: '#666' }}>请使用微信扫一扫支付</p>
                 </>
             ) : (