diff --git a/app/Http/Controllers/Admin/PlatformOrderController.php b/app/Http/Controllers/Admin/PlatformOrderController.php
index ecafb2d..1c71559 100644
--- a/app/Http/Controllers/Admin/PlatformOrderController.php
+++ b/app/Http/Controllers/Admin/PlatformOrderController.php
@@ -359,6 +359,11 @@ class PlatformOrderController extends Controller
     {
         $admin = $this->ensurePlatformAdmin($request);
 
+        // 治理优先：当订单命中金额/状态不一致时，不建议直接同步订阅（避免把“带病订单”同步到订阅）
+        if ($order->isReconcileMismatch() || $order->isRefundInconsistent()) {
+            return redirect()->back()->with('warning', '当前订单命中「对账不一致/退款不一致」，为避免带病同步，请先完成金额/状态治理（补回执/核对退款/修正状态）后再同步订阅。');
+        }
+
         try {
             $subscription = $service->activateOrder($order->id, $admin->id);
 
diff --git a/tests/Feature/AdminPlatformOrderActivateSubscriptionGovernanceSafetyValveTest.php b/tests/Feature/AdminPlatformOrderActivateSubscriptionGovernanceSafetyValveTest.php
new file mode 100644
index 0000000..2a2dac0
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderActivateSubscriptionGovernanceSafetyValveTest.php
@@ -0,0 +1,73 @@
+<?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 AdminPlatformOrderActivateSubscriptionGovernanceSafetyValveTest 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_activate_subscription_blocked_when_order_is_reconcile_mismatch(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'activate_subscription_gov_safety_valve_test',
+            'name' => '单笔同步治理安全阀测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 66,
+            'list_price' => 66,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $order = PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_ACT_GOV_BLOCK_0001',
+            'order_type' => 'new_purchase',
+            'status' => 'activated',
+            'payment_status' => 'paid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 66,
+            'paid_amount' => 66,
+            'placed_at' => now()->subMinutes(10),
+            'paid_at' => now()->subMinutes(5),
+            'activated_at' => now()->subMinutes(1),
+            // 对账不一致：receipt_total 65.98 vs paid_amount 66
+            'meta' => [
+                'payment_summary' => [
+                    'count' => 1,
+                    'total_amount' => 65.98,
+                ],
+            ],
+        ]);
+
+        $res = $this->post('/admin/platform-orders/' . $order->id . '/activate-subscription');
+        $res->assertRedirect();
+        $res->assertSessionHas('warning');
+
+        $order->refresh();
+        $this->assertNull($order->site_subscription_id);
+    }
+}
diff --git a/tests/Feature/AdminPlatformOrderActivateSubscriptionTest.php b/tests/Feature/AdminPlatformOrderActivateSubscriptionTest.php
index b72e3e1..1f18b8a 100644
--- a/tests/Feature/AdminPlatformOrderActivateSubscriptionTest.php
+++ b/tests/Feature/AdminPlatformOrderActivateSubscriptionTest.php
@@ -56,6 +56,13 @@ class AdminPlatformOrderActivateSubscriptionTest extends TestCase
             'placed_at' => now()->subMinutes(10),
             'paid_at' => now()->subMinutes(5),
             'activated_at' => now()->subMinutes(1),
+            // 避免命中“治理优先”安全阀：构造回执与已付金额一致
+            'meta' => [
+                'payment_summary' => [
+                    'count' => 1,
+                    'total_amount' => 66.00,
+                ],
+            ],
         ]);
 
         $this->post('/admin/platform-orders/' . $order->id . '/activate-subscription')