diff --git a/app/controller/Message.php b/app/controller/Message.php
index e250179..41880e3 100644
--- a/app/controller/Message.php
+++ b/app/controller/Message.php
@@ -102,4 +102,35 @@ class Message extends BaseController
 
         return json(['code' => 0, 'data' => null, 'msg' => 'ok']);
     }
+
+    // GET api/message/unread?card_no=XXX  或  ?card_no=all&staff_id=1
+    // 顾客端：传 card_no，查 staff 发送的未读消息数
+    // 员工端：传 card_no=all + staff_id，统计所有顾客发来的未读消息数
+    public function unread()
+    {
+        $cardNo  = $this->request->get('card_no', '');
+        $staffId = $this->request->get('staff_id', null);
+
+        if (empty($cardNo)) {
+            return json(['code' => -1, 'data' => null, 'msg' => '缺少号码牌']);
+        }
+
+        $query = MessageModel::where('is_read', 0);
+
+        if ($cardNo === 'all' && $staffId !== null) {
+            // 员工端：统计所有对话中顾客发来的未读
+            $query->where('sender_type', 'customer');
+        } elseif ($staffId !== null) {
+            // 员工端指定号码牌
+            $query->where('card_no', $cardNo)->where('sender_type', 'customer');
+        } else {
+            // 顾客端：统计该号码牌员工发来的未读
+            $query->where('card_no', $cardNo)->where('sender_type', 'staff');
+        }
+
+        $count = $query->count();
+        return json(['code' => 0, 'data' => ['count' => $count], 'msg' => 'ok']);
+    }
 }
+
+
diff --git a/route/app.php b/route/app.php
index 9a98579..261a892 100644
--- a/route/app.php
+++ b/route/app.php
@@ -13,6 +13,7 @@ Route::post('api/order/remind',    'Order/remind');
 Route::get('api/message/list',     'Message/list');
 Route::post('api/message/send',    'Message/send');
 Route::post('api/message/read',    'Message/read');
+Route::get('api/message/unread',   'Message/unread');
 
 // ── 员工端（需Token中间件） ──
 Route::post('api/staff/login',     'Staff/login');
@@ -23,3 +24,4 @@ Route::group('api/staff', function () {
     Route::post('order/done',      'Staff/done');
     Route::post('order/cancel',    'Staff/cancel');
 })->middleware('StaffAuth');
+