diff --git a/tests/Feature/AdminSiteSubscriptionFailedReasonStatsLinksTest.php b/tests/Feature/AdminSiteSubscriptionFailedReasonStatsLinksTest.php
new file mode 100644
index 0000000..5160f70
--- /dev/null
+++ b/tests/Feature/AdminSiteSubscriptionFailedReasonStatsLinksTest.php
@@ -0,0 +1,96 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformOrder;
+use App\Models\SiteSubscription;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminSiteSubscriptionFailedReasonStatsLinksTest 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_subscription_show_page_shows_sync_failed_reason_top3_and_links(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'sub_sync_failed_reason_01',
+            'name' => '订阅同步失败原因Top3测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $sub = SiteSubscription::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'status' => 'activated',
+            'source' => 'manual',
+            'subscription_no' => 'SUB_SYNC_REASON_0001',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'amount' => 10,
+            'starts_at' => now()->subDay(),
+            'ends_at' => now()->addMonth(),
+            'activated_at' => now()->subDay(),
+        ]);
+
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'site_subscription_id' => $sub->id,
+            'created_by_admin_id' => 1,
+            'order_no' => 'PO_SUB_SYNC_REASON_0001',
+            'order_type' => 'renewal',
+            'status' => 'activated',
+            'payment_status' => 'paid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 10,
+            'paid_amount' => 10,
+            'placed_at' => now(),
+            'paid_at' => now(),
+            'activated_at' => now(),
+            'meta' => [
+                'subscription_activation_error' => [
+                    'message' => '订单未满足生效条件：需 payment_status=paid 且 status=activated',
+                    'at' => now()->toDateTimeString(),
+                    'admin_id' => 1,
+                ],
+            ],
+        ]);
+
+        $expectedUrl = '/admin/platform-orders?' . \Illuminate\Support\Arr::query([
+            'site_subscription_id' => $sub->id,
+            'sync_status' => 'failed',
+            'sync_error_keyword' => '订单未满足生效条件：需 payment_status=paid 且 status=activated',
+        ]);
+
+        $this->get('/admin/site-subscriptions/' . $sub->id)
+            ->assertOk()
+            ->assertSee('同步失败原因Top3')
+            ->assertSee('订单未满足生效条件')
+            ->assertSee($expectedUrl, false);
+    }
+}