diff --git a/resources/views/admin/platform_orders/show.blade.php b/resources/views/admin/platform_orders/show.blade.php
index 8687a19..4672f2e 100644
--- a/resources/views/admin/platform_orders/show.blade.php
+++ b/resources/views/admin/platform_orders/show.blade.php
@@ -384,7 +384,7 @@
             $markActivatedBlockedByMissingSubscriptionOnRenewal = ((string) ($order->order_type ?? '') === 'renewal')
                 && ((int) ($order->site_subscription_id ?? 0) <= 0);
         @endphp
-        <form method="post" action="/admin/platform-orders/{{ $order->id }}/mark-activated" onsubmit="return confirm('确认将该订单标记为已生效？（不修改支付状态，不自动同步订阅）');">
+        <form method="post" action="/admin/platform-orders/{{ $order->id }}/mark-activated" data-action="disable-on-submit" onsubmit="return confirm('确认将该订单标记为已生效？（不修改支付状态，不自动同步订阅）');">
             @csrf
             <button class="btn btn-secondary btn-sm" type="submit" @disabled(! $canMarkActivatedOnly || $markActivatedBlockedByMissingSubscriptionOnRenewal)>仅标记为已生效</button>
         </form>
@@ -732,7 +732,7 @@
     <div class="flex-between">
         <h3>最近一次同步失败</h3>
         @if($activationError)
-            <form method="post" action="/admin/platform-orders/{{ $order->id }}/clear-sync-error" onsubmit="return confirm('确认清除该订单的同步失败标记？该操作仅清理 meta 标记，不会改变订阅/订单状态。');">
+            <form method="post" action="/admin/platform-orders/{{ $order->id }}/clear-sync-error" data-action="disable-on-submit" onsubmit="return confirm('确认清除该订单的同步失败标记？该操作仅清理 meta 标记，不会改变订阅/订单状态。');">
                 @csrf
                 <button class="btn btn-danger btn-sm" type="submit">清除失败标记</button>
             </form>
@@ -781,7 +781,7 @@
     <div class="flex-between">
         <h3>最近一次 BMPA 失败</h3>
         @if($bmpaError)
-            <form method="post" action="/admin/platform-orders/{{ $order->id }}/clear-bmpa-error" onsubmit="return confirm('确认清除该订单的 BMPA 失败标记？该操作仅清理 meta 标记，不会改变订阅/订单状态。');">
+            <form method="post" action="/admin/platform-orders/{{ $order->id }}/clear-bmpa-error" data-action="disable-on-submit" onsubmit="return confirm('确认清除该订单的 BMPA 失败标记？该操作仅清理 meta 标记，不会改变订阅/订单状态。');">
                 @csrf
                 <button class="btn btn-danger btn-sm" type="submit">清除 BMPA 失败标记</button>
             </form>
diff --git a/tests/Feature/AdminPlatformOrderShowFormsShouldDisableOnSubmitTest.php b/tests/Feature/AdminPlatformOrderShowFormsShouldDisableOnSubmitTest.php
new file mode 100644
index 0000000..2c61709
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderShowFormsShouldDisableOnSubmitTest.php
@@ -0,0 +1,84 @@
+<?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 AdminPlatformOrderShowFormsShouldDisableOnSubmitTest 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_show_forms_should_disable_on_submit_for_high_risk_actions(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'po_show_forms_disable_submit_01',
+            'name' => '订单详情表单禁用提交测试',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $order = PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_SHOW_DISABLE_SUBMIT_0001',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            '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(),
+            'meta' => [
+                // 让页面出现“同步失败/ BMPA失败”的清理按钮（否则按钮不渲染）
+                'subscription_activation_error' => [
+                    'message' => 'sync failed',
+                    'at' => now()->toDateTimeString(),
+                ],
+                'batch_mark_paid_and_activate_error' => [
+                    'message' => 'bmpa failed',
+                    'at' => now()->toDateTimeString(),
+                ],
+            ],
+        ]);
+
+        $html = $this->get('/admin/platform-orders/' . $order->id)
+            ->assertOk()
+            ->getContent();
+
+        $this->assertIsString($html);
+
+        // 标记生效
+        $this->assertStringContainsString('/admin/platform-orders/' . $order->id . '/mark-activated', $html);
+        $this->assertStringContainsString('data-action="disable-on-submit"', $html);
+
+        // 清除失败标记（同步/BMPA）
+        $this->assertStringContainsString('/admin/platform-orders/' . $order->id . '/clear-sync-error', $html);
+        $this->assertStringContainsString('/admin/platform-orders/' . $order->id . '/clear-bmpa-error', $html);
+        $this->assertStringContainsString('data-action="disable-on-submit"', $html);
+    }
+}