diff --git a/app/Http/Controllers/Admin/PlatformOrderController.php b/app/Http/Controllers/Admin/PlatformOrderController.php
index e954d78..6928e15 100644
--- a/app/Http/Controllers/Admin/PlatformOrderController.php
+++ b/app/Http/Controllers/Admin/PlatformOrderController.php
@@ -130,6 +130,8 @@ class PlatformOrderController extends Controller
             'synced_only' => (string) $request->query('synced_only', ''),
             'sync_status' => trim((string) $request->query('sync_status', '')),
             'keyword' => trim((string) $request->query('keyword', '')),
+            // 同步失败原因关键词：用于快速定位同原因失败订单（可治理）
+            'sync_error_keyword' => trim((string) $request->query('sync_error_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）
@@ -593,6 +595,8 @@ class PlatformOrderController extends Controller
             'synced_only' => (string) $request->query('synced_only', ''),
             'sync_status' => trim((string) $request->query('sync_status', '')),
             'keyword' => trim((string) $request->query('keyword', '')),
+            // 同步失败原因关键词：用于快速定位同原因失败订单（可治理）
+            'sync_error_keyword' => trim((string) $request->query('sync_error_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）
@@ -786,6 +790,7 @@ class PlatformOrderController extends Controller
             'synced_only' => (string) $request->input('synced_only', ''),
             'sync_status' => trim((string) $request->input('sync_status', '')),
             'keyword' => trim((string) $request->input('keyword', '')),
+            'sync_error_keyword' => trim((string) $request->input('sync_error_keyword', '')),
             'syncable_only' => (string) $request->input('syncable_only', ''),
             'batch_synced_24h' => (string) $request->input('batch_synced_24h', ''),
             // 与列表页筛选保持一致（可治理）：用于在批量操作后仍能回到同一口径
@@ -917,6 +922,7 @@ class PlatformOrderController extends Controller
             'synced_only' => (string) $request->input('synced_only', ''),
             'sync_status' => trim((string) $request->input('sync_status', '')),
             'keyword' => trim((string) $request->input('keyword', '')),
+            'sync_error_keyword' => trim((string) $request->input('sync_error_keyword', '')),
             'syncable_only' => (string) $request->input('syncable_only', ''),
             'batch_synced_24h' => (string) $request->input('batch_synced_24h', ''),
             // 与列表页筛选保持一致（可治理）：用于在批量操作后仍能回到同一口径
@@ -1026,6 +1032,7 @@ class PlatformOrderController extends Controller
             'synced_only' => (string) $request->input('synced_only', ''),
             'sync_status' => trim((string) $request->input('sync_status', '')),
             'keyword' => trim((string) $request->input('keyword', '')),
+            'sync_error_keyword' => trim((string) $request->input('sync_error_keyword', '')),
             'syncable_only' => (string) $request->input('syncable_only', ''),
             'batch_synced_24h' => (string) $request->input('batch_synced_24h', ''),
             // 与列表页筛选保持一致（可治理）：用于在批量操作后仍能回到同一口径
@@ -1128,6 +1135,20 @@ class PlatformOrderController extends Controller
                     }
                 });
             })
+            ->when(($filters['sync_error_keyword'] ?? '') !== '', function (Builder $builder) use ($filters) {
+                // 同步失败原因关键词：subscription_activation_error.message like
+                $kw = trim((string) ($filters['sync_error_keyword'] ?? ''));
+                if ($kw === '') {
+                    return;
+                }
+
+                $driver = $builder->getQuery()->getConnection()->getDriverName();
+                if ($driver === 'sqlite') {
+                    $builder->whereRaw("JSON_EXTRACT(meta, '$.subscription_activation_error.message') LIKE ?", ['%' . $kw . '%']);
+                } else {
+                    $builder->whereRaw("JSON_UNQUOTE(JSON_EXTRACT(meta, '$.subscription_activation_error.message')) LIKE ?", ['%' . $kw . '%']);
+                }
+            })
             ->when(($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 a19f089..a1f5e9c 100644
--- a/resources/views/admin/platform_orders/index.blade.php
+++ b/resources/views/admin/platform_orders/index.blade.php
@@ -107,6 +107,7 @@
             <span>只看对账不一致（回执总额≠已付金额）</span>
         </label>
         <input type="text" name="keyword" placeholder="关键词：订单号/站点/订阅号" value="{{ $filters['keyword'] ?? '' }}">
+        <input type="text" name="sync_error_keyword" placeholder="失败原因关键词（可选）" value="{{ $filters['sync_error_keyword'] ?? '' }}">
         <div>
             <button type="submit">应用筛选</button>
         </div>
@@ -240,6 +241,7 @@
         <input type="hidden" name="batch_synced_24h" value="{{ $filters['batch_synced_24h'] ?? '' }}">
         <input type="hidden" name="batch_mark_activated_24h" value="{{ $filters['batch_mark_activated_24h'] ?? '' }}">
         <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
+        <input type="hidden" name="sync_error_keyword" value="{{ $filters['sync_error_keyword'] ?? '' }}">
         <input type="hidden" name="reconcile_mismatch" value="{{ $filters['reconcile_mismatch'] ?? '' }}">
 
         <label class="form-inline-row mb-8">
@@ -267,6 +269,7 @@
         <input type="hidden" name="batch_synced_24h" value="{{ $filters['batch_synced_24h'] ?? '' }}">
         <input type="hidden" name="batch_mark_activated_24h" value="{{ $filters['batch_mark_activated_24h'] ?? '' }}">
         <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
+        <input type="hidden" name="sync_error_keyword" value="{{ $filters['sync_error_keyword'] ?? '' }}">
         <input type="hidden" name="reconcile_mismatch" value="{{ $filters['reconcile_mismatch'] ?? '' }}">
 
         <label class="muted form-inline-row mb-8">
@@ -296,6 +299,7 @@
         <input type="hidden" name="batch_synced_24h" value="{{ $filters['batch_synced_24h'] ?? '' }}">
         <input type="hidden" name="batch_mark_activated_24h" value="{{ $filters['batch_mark_activated_24h'] ?? '' }}">
         <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
+        <input type="hidden" name="sync_error_keyword" value="{{ $filters['sync_error_keyword'] ?? '' }}">
         <input type="hidden" name="reconcile_mismatch" value="{{ $filters['reconcile_mismatch'] ?? '' }}">
         <label class="muted form-inline-row mb-8">
             <span>确认输入</span>
@@ -327,6 +331,7 @@
         <input type="hidden" name="batch_synced_24h" value="{{ $filters['batch_synced_24h'] ?? '' }}">
         <input type="hidden" name="batch_mark_activated_24h" value="{{ $filters['batch_mark_activated_24h'] ?? '' }}">
         <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
+        <input type="hidden" name="sync_error_keyword" value="{{ $filters['sync_error_keyword'] ?? '' }}">
         <input type="hidden" name="reconcile_mismatch" value="{{ $filters['reconcile_mismatch'] ?? '' }}">
 
         <label class="muted form-inline-row mb-8">
@@ -372,6 +377,7 @@
         <input type="hidden" name="batch_synced_24h" value="{{ $filters['batch_synced_24h'] ?? '' }}">
         <input type="hidden" name="batch_mark_activated_24h" value="{{ $filters['batch_mark_activated_24h'] ?? '' }}">
         <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
+        <input type="hidden" name="sync_error_keyword" value="{{ $filters['sync_error_keyword'] ?? '' }}">
         <input type="hidden" name="reconcile_mismatch" value="{{ $filters['reconcile_mismatch'] ?? '' }}">
         <button type="submit">清除当前筛选范围的失败标记</button>
     </form>
diff --git a/resources/views/admin/site_subscriptions/show.blade.php b/resources/views/admin/site_subscriptions/show.blade.php
index 736f475..e874926 100644
--- a/resources/views/admin/site_subscriptions/show.blade.php
+++ b/resources/views/admin/site_subscriptions/show.blade.php
@@ -200,7 +200,11 @@
         @if(count($failedReasonStats) > 0)
             <div class="muted mt-6">
                 @foreach($failedReasonStats as $item)
-                    <div>{{ $item['reason'] }} <span class="muted">（{{ $item['count'] }}）</span></div>
+                    @php $reason = (string) ($item['reason'] ?? ''); @endphp
+                    <div>
+                        <a class="link" href="{!! $makePlatformOrderUrl(['site_subscription_id' => $subscription->id, 'sync_status' => 'failed', 'sync_error_keyword' => $reason]) !!}">{{ $reason }}</a>
+                        <span class="muted">（{{ $item['count'] }}）</span>
+                    </div>
                 @endforeach
             </div>
         @else
diff --git a/tests/Feature/AdminPlatformOrderSyncErrorKeywordFilterTest.php b/tests/Feature/AdminPlatformOrderSyncErrorKeywordFilterTest.php
new file mode 100644
index 0000000..fee5b91
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderSyncErrorKeywordFilterTest.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformOrder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlatformOrderSyncErrorKeywordFilterTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_platform_orders_page_can_filter_by_sync_error_keyword(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'sync_error_kw_test',
+            'name' => '同步失败关键词测试',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_ERR_KW_0001',
+            'order_type' => 'renewal',
+            'status' => 'pending',
+            'payment_status' => 'unpaid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 10,
+            'paid_amount' => 0,
+            'placed_at' => now()->subMinutes(2),
+            'meta' => [
+                'subscription_activation_error' => [
+                    'message' => '模拟失败：站点已过期',
+                    'at' => now()->toDateTimeString(),
+                    'admin_id' => 1,
+                ],
+            ],
+        ]);
+
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_ERR_KW_0002',
+            'order_type' => 'renewal',
+            'status' => 'pending',
+            'payment_status' => 'unpaid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 10,
+            'paid_amount' => 0,
+            'placed_at' => now()->subMinutes(1),
+            'meta' => [
+                'subscription_activation_error' => [
+                    'message' => '余额不足',
+                    'at' => now()->toDateTimeString(),
+                    'admin_id' => 1,
+                ],
+            ],
+        ]);
+
+        $this->get('/admin/platform-orders?sync_error_keyword=' . urlencode('已过期'))
+            ->assertOk()
+            ->assertSee('PO_ERR_KW_0001')
+            ->assertDontSee('PO_ERR_KW_0002');
+
+        // 未命中关键词：应不展示任何一条
+        $this->get('/admin/platform-orders?sync_error_keyword=' . urlencode('不存在的关键词'))
+            ->assertOk()
+            ->assertDontSee('PO_ERR_KW_0001')
+            ->assertDontSee('PO_ERR_KW_0002');
+    }
+}
diff --git a/tests/Feature/AdminSiteSubscriptionShowTest.php b/tests/Feature/AdminSiteSubscriptionShowTest.php
index 8b92e61..4d2e631 100644
--- a/tests/Feature/AdminSiteSubscriptionShowTest.php
+++ b/tests/Feature/AdminSiteSubscriptionShowTest.php
@@ -95,6 +95,11 @@ class AdminSiteSubscriptionShowTest extends TestCase
                     'last_amount' => 10,
                     'last_channel' => 'bank_transfer',
                 ],
+                'subscription_activation_error' => [
+                    'message' => '模拟失败：站点已过期',
+                    'at' => now()->toDateTimeString(),
+                    'admin_id' => 1,
+                ],
             ],
         ]);
 
@@ -107,6 +112,7 @@ class AdminSiteSubscriptionShowTest extends TestCase
             ->assertSee('可同步（已支付+已生效+未同步）')
             ->assertSee('未同步（无记录）')
             ->assertSee('失败原因Top3')
+            ->assertSee('/admin/platform-orders?site_subscription_id=' . $sub->id . '&sync_status=failed&sync_error_keyword=' . urlencode('模拟失败：站点已过期'), false)
             ->assertSee('/admin/platform-orders?site_subscription_id=' . $sub->id . '&sync_status=synced', false)
             ->assertSee('/admin/platform-orders?site_subscription_id=' . $sub->id . '&sync_status=failed', false)
             ->assertSee('/admin/platform-orders?site_subscription_id=' . $sub->id . '&syncable_only=1', false)