百家乐后台统计：新增会员输掉金币总数卡片

app/Http/Controllers/Admin/GameHistoryController.php

@@ -113,6 +113,8 @@ class GameHistoryController extends Controller
             'total_rounds' => BaccaratRound::query()->where('status', 'settled')->count(),
             'total_bets' => BaccaratBet::query()->count(),
             'total_payout' => (int) BaccaratRound::query()->where('status', 'settled')->sum('total_payout'),
+            // 会员实际输掉的金币：所有已结算落败注单的押注金额合计
+            'total_lost' => (int) BaccaratBet::query()->where('status', 'lost')->sum('amount'),
             'result_dist' => BaccaratRound::query()
                 ->where('status', 'settled')
                 ->select('result', \Illuminate\Support\Facades\DB::raw('count(*) as cnt'))

resources/views/admin/game-history/baccarat.blade.php

@@ -18,7 +18,7 @@
         </div>
 
         {{-- 统计卡片 --}}
-        <div class="grid grid-cols-2 md:grid-cols-4 gap-4">
+        <div class="grid grid-cols-2 md:grid-cols-5 gap-4">
             <div class="bg-white rounded-xl shadow-sm border border-gray-100 p-5">
                 <div class="text-2xl font-bold text-indigo-600">{{ number_format($summary['total_rounds']) }}</div>
                 <div class="text-xs text-gray-500 mt-1">历史总局数</div>
@@ -31,6 +31,10 @@
                 <div class="text-2xl font-bold text-emerald-600">{{ number_format($summary['total_payout']) }}</div>
                 <div class="text-xs text-gray-500 mt-1">累计派奖金币</div>
             </div>
+            <div class="bg-white rounded-xl shadow-sm border border-red-100 p-5">
+                <div class="text-2xl font-bold text-red-600">{{ number_format($summary['total_lost']) }}</div>
+                <div class="text-xs text-gray-500 mt-1">会员输掉金币</div>
+            </div>
             <div class="bg-white rounded-xl shadow-sm border border-gray-100 p-5">
                 <div class="text-sm font-bold text-gray-700 mb-2">结果分布</div>
                 <div class="space-y-1">