diff --git a/app/Http/Controllers/Admin/PlatformOrderController.php b/app/Http/Controllers/Admin/PlatformOrderController.php
index bc490e0..8f4861e 100644
--- a/app/Http/Controllers/Admin/PlatformOrderController.php
+++ b/app/Http/Controllers/Admin/PlatformOrderController.php
@@ -29,6 +29,7 @@ class PlatformOrderController extends Controller
             'fail_only' => (string) $request->query('fail_only', ''),
             'synced_only' => (string) $request->query('synced_only', ''),
             'sync_status' => trim((string) $request->query('sync_status', '')),
+            'keyword' => trim((string) $request->query('keyword', '')),
             // 只看“可同步订阅”的订单：已支付 + 已生效 + 未同步（用于运营快速处理）
             'syncable_only' => (string) $request->query('syncable_only', ''),
             // 只看最近 24 小时批量同步过的订单（可治理追踪）
@@ -221,6 +222,7 @@ class PlatformOrderController extends Controller
             'fail_only' => (string) $request->query('fail_only', ''),
             'synced_only' => (string) $request->query('synced_only', ''),
             'sync_status' => trim((string) $request->query('sync_status', '')),
+            'keyword' => trim((string) $request->query('keyword', '')),
             // 只看“可同步订阅”的订单：已支付 + 已生效 + 未同步（用于运营快速处理）
             'syncable_only' => (string) $request->query('syncable_only', ''),
             // 只看最近 24 小时批量同步过的订单（可治理追踪）
@@ -334,6 +336,7 @@ class PlatformOrderController extends Controller
             'fail_only' => (string) $request->input('fail_only', ''),
             'synced_only' => (string) $request->input('synced_only', ''),
             'sync_status' => trim((string) $request->input('sync_status', '')),
+            'keyword' => trim((string) $request->input('keyword', '')),
             'syncable_only' => (string) $request->input('syncable_only', ''),
             'batch_synced_24h' => (string) $request->input('batch_synced_24h', ''),
         ];
@@ -458,6 +461,7 @@ class PlatformOrderController extends Controller
             'fail_only' => (string) $request->input('fail_only', ''),
             'synced_only' => (string) $request->input('synced_only', ''),
             'sync_status' => trim((string) $request->input('sync_status', '')),
+            'keyword' => trim((string) $request->input('keyword', '')),
             'syncable_only' => (string) $request->input('syncable_only', ''),
             'batch_synced_24h' => (string) $request->input('batch_synced_24h', ''),
         ];
@@ -530,6 +534,30 @@ class PlatformOrderController extends Controller
                         ->whereRaw("JSON_EXTRACT(meta, '$.subscription_activation_error.message') IS NULL");
                 }
             })
+            ->when(($filters['keyword'] ?? '') !== '', function (Builder $builder) use ($filters) {
+                // 关键词搜索：订单号 / 站点名称 / 订阅号
+                $kw = trim((string) ($filters['keyword'] ?? ''));
+                if ($kw === '') {
+                    return;
+                }
+
+                $builder->where(function (Builder $q) use ($kw) {
+                    $q->where('order_no', 'like', '%' . $kw . '%')
+                        ->orWhere('order_type', 'like', '%' . $kw . '%')
+                        ->orWhere('plan_name', 'like', '%' . $kw . '%')
+                        ->orWhereHas('merchant', function (Builder $mq) use ($kw) {
+                            $mq->where('name', 'like', '%' . $kw . '%')
+                                ->orWhere('slug', 'like', '%' . $kw . '%');
+                        })
+                        ->orWhereHas('siteSubscription', function (Builder $sq) use ($kw) {
+                            $sq->where('subscription_no', 'like', '%' . $kw . '%');
+                        });
+
+                    if (ctype_digit($kw)) {
+                        $q->orWhere('id', (int) $kw);
+                    }
+                });
+            })
             ->when(($filters['syncable_only'] ?? '') !== '', function (Builder $builder) {
                 // 只看可同步：已支付 + 已生效 + 尚未写入 subscription_activation.subscription_id
                 $builder->where('payment_status', 'paid')
diff --git a/resources/views/admin/platform_orders/index.blade.php b/resources/views/admin/platform_orders/index.blade.php
index dbf4c46..4f2f992 100644
--- a/resources/views/admin/platform_orders/index.blade.php
+++ b/resources/views/admin/platform_orders/index.blade.php
@@ -46,6 +46,7 @@
             <input type="checkbox" name="batch_synced_24h" value="1" @checked(($filters['batch_synced_24h'] ?? '') === '1')>
             <span>最近24小时批量同步过</span>
         </label>
+        <input type="text" name="keyword" placeholder="关键词：订单号/站点/订阅号" value="{{ $filters['keyword'] ?? '' }}">
         <div>
             <button type="submit">应用筛选</button>
         </div>
@@ -106,6 +107,7 @@
         <input type="hidden" name="sync_status" value="{{ $filters['sync_status'] ?? '' }}">
         <input type="hidden" name="syncable_only" value="{{ $filters['syncable_only'] ?? '' }}">
         <input type="hidden" name="batch_synced_24h" value="{{ $filters['batch_synced_24h'] ?? '' }}">
+        <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
 
         <label class="form-inline-row mb-8">
             <input type="checkbox" name="include_meta" value="1">
@@ -125,6 +127,7 @@
         <input type="hidden" name="sync_status" value="{{ $filters['sync_status'] ?? '' }}">
         <input type="hidden" name="syncable_only" value="{{ $filters['syncable_only'] ?? '' }}">
         <input type="hidden" name="batch_synced_24h" value="{{ $filters['batch_synced_24h'] ?? '' }}">
+        <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
 
         <label class="muted form-inline-row mb-8">
             <span>本次最多处理</span>
@@ -162,6 +165,7 @@
         <input type="hidden" name="sync_status" value="{{ $filters['sync_status'] ?? '' }}">
         <input type="hidden" name="syncable_only" value="{{ $filters['syncable_only'] ?? '' }}">
         <input type="hidden" name="batch_synced_24h" value="{{ $filters['batch_synced_24h'] ?? '' }}">
+        <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
         <button type="submit">清除当前筛选范围的失败标记</button>
     </form>