diff --git a/.env.example b/.env.example
index 5a82a88..cbab789 100644
--- a/.env.example
+++ b/.env.example
@@ -3,6 +3,8 @@ APP_ENV=local
 APP_KEY=
 APP_DEBUG=true
 APP_URL=http://localhost
+# 与活动预约开放窗口等业务日期时间一致（数据库 datetime 按本地时刻存储时使用）
+APP_TIMEZONE=Asia/Shanghai
 SANCTUM_STATEFUL_DOMAINS=localhost:5173,127.0.0.1:5173,localhost:5174,127.0.0.1:5174,localhost,127.0.0.1
 CORS_ALLOWED_ORIGINS=http://localhost:5173,http://127.0.0.1:5173,http://localhost:5174,http://127.0.0.1:5174
 CORS_SUPPORTS_CREDENTIALS=true
diff --git a/app/Http/Controllers/Api/ActivityRegistrationController.php b/app/Http/Controllers/Api/ActivityRegistrationController.php
index 8cee7e7..d3c445e 100644
--- a/app/Http/Controllers/Api/ActivityRegistrationController.php
+++ b/app/Http/Controllers/Api/ActivityRegistrationController.php
@@ -104,7 +104,7 @@ class ActivityRegistrationController extends Controller
         return response()->streamDownload(function () use ($rows) {
             $out = fopen('php://output', 'w');
             fprintf($out, chr(0xEF) . chr(0xBB) . chr(0xBF));
-            fputcsv($out, ['ID', '活动', '场馆', '报名人', '手机号', '身份证', '预约票数', '预约入馆日期', '状态', '预约时间', '核销时间', '二维码Token']);
+            fputcsv($out, ['ID', '活动', '场馆', '报名人', '手机号', '身份证', '预约类型', '预约票数', '预约入馆日期', '状态', '预约时间', '核销时间', '二维码Token']);
             foreach ($rows as $row) {
                 $entryDate = $row->activityDay?->activity_date;
                 $entryDateStr = $entryDate ? Carbon::parse($entryDate)->timezone('Asia/Shanghai')->format('Y-m-d') : '';
@@ -115,6 +115,7 @@ class ActivityRegistrationController extends Controller
                     $row->visitor_name,
                     $row->visitor_phone ?? '',
                     $row->id_card ?? '',
+                    self::bookingTypeLabel($row->booking_type, $row->ticket_count),
                     (string) ($row->ticket_count ?? 1),
                     $entryDateStr,
                     self::statusLabel($row->status),
@@ -217,4 +218,17 @@ class ActivityRegistrationController extends Controller
             default => $status,
         };
     }
+
+    private static function bookingTypeLabel(?string $bookingType, mixed $ticketCount): string
+    {
+        if ($bookingType === 'group') {
+            return '团体';
+        }
+        if ($bookingType === 'individual') {
+            return '个人';
+        }
+        $n = max(1, (int) $ticketCount);
+
+        return $n > 1 ? '团体' : '个人';
+    }
 }
diff --git a/app/Http/Controllers/Api/H5ReservationController.php b/app/Http/Controllers/Api/H5ReservationController.php
index b033191..b1955e1 100644
--- a/app/Http/Controllers/Api/H5ReservationController.php
+++ b/app/Http/Controllers/Api/H5ReservationController.php
@@ -115,26 +115,34 @@ class H5ReservationController extends Controller
 
         [$bookingType, $peopleCount] = $this->resolveBookingTypeAndPeopleCount($mode, $data, $minPeople, $maxPeople);
 
-        $reservation = DB::transaction(function () use ($request, $activity, $day, $data, $peopleCount, $bookingType) {
+        $wechatUser = $this->authWechatUser($request);
+
+        $reservation = DB::transaction(function () use ($activity, $day, $data, $peopleCount, $bookingType, $wechatUser) {
             $day->refresh();
             $available = (int) $day->day_quota - (int) $day->booked_count;
             if ($available < $peopleCount) {
                 throw ValidationException::withMessages(['activity_day_id' => ['该日期余票不足']]);
             }
 
-            // 去重规则：同活动同活动日同手机号只能预约一单（未取消）
-            $dupByPhone = Reservation::query()
+            // 去重：同一活动、同一活动日，同一用户只能有一单未取消预约（取消后可再约）
+            // — 按手机号；已登录时同时按微信用户，避免换手机号重复占坑
+            $dup = Reservation::query()
                 ->where('activity_id', $activity->id)
                 ->where('activity_day_id', $day->id)
-                ->where('visitor_phone', $data['visitor_phone'])
                 ->where('status', '!=', 'cancelled')
+                ->where(function ($q) use ($data, $wechatUser) {
+                    $q->where('visitor_phone', $data['visitor_phone']);
+                    if ($wechatUser) {
+                        $q->orWhere('wechat_user_id', $wechatUser->id);
+                    }
+                })
                 ->exists();
-            if ($dupByPhone) {
-                throw ValidationException::withMessages(['visitor_phone' => ['该手机号在该活动日期已预约过']]);
+            if ($dup) {
+                throw ValidationException::withMessages([
+                    'activity_day_id' => ['您在该活动该日期已有未取消的预约，请先取消原预约后再预约'],
+                ]);
             }
 
-            $wechatUser = $this->authWechatUser($request);
-
             $row = Reservation::create([
                 'venue_id' => $activity->venue_id,
                 'activity_id' => $activity->id,
diff --git a/config/app.php b/config/app.php
index 9207160..d3826fb 100644
--- a/config/app.php
+++ b/config/app.php
@@ -70,7 +70,7 @@ return [
     |
     */
 
-    'timezone' => 'UTC',
+    'timezone' => env('APP_TIMEZONE', 'Asia/Shanghai'),
 
     /*
     |--------------------------------------------------------------------------