diff --git a/public/css/admin-components.css b/public/css/admin-components.css
index bcc6216..ac1d56a 100644
--- a/public/css/admin-components.css
+++ b/public/css/admin-components.css
@@ -367,7 +367,7 @@
     display:grid;
     grid-template-columns:repeat(2,minmax(0,1fr));
     gap:12px;
-    align-items:start;
+    align-items:stretch;
 }
 
 /* 防止 focus-box（border） + 内部 form 宽度造成列间“压线/重叠” */
@@ -383,6 +383,9 @@
 
 .tool-group{
     width:100%;
+    height:100%;
+    display:flex;
+    flex-direction:column;
 }
 
 .tool-group-title{
diff --git a/resources/views/admin/platform_orders/index.blade.php b/resources/views/admin/platform_orders/index.blade.php
index 3e6b9a0..54fd71b 100644
--- a/resources/views/admin/platform_orders/index.blade.php
+++ b/resources/views/admin/platform_orders/index.blade.php
@@ -1067,6 +1067,7 @@
             </form>
     </div>
 </div>
+</div>
 
 
 <div class="card list-card">
diff --git a/tests/Feature/AdminPlatformOrderShowActionsShouldRenderTest.php b/tests/Feature/AdminPlatformOrderShowActionsShouldRenderTest.php
new file mode 100644
index 0000000..a667252
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderShowActionsShouldRenderTest.php
@@ -0,0 +1,75 @@
+<?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 AdminPlatformOrderShowActionsShouldRenderTest 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_order_show_page_renders_core_governance_action_forms(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'po_show_actions_plan_01',
+            'name' => '平台订单详情动作测试套餐',
+            '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_ACTIONS_0001',
+            'order_type' => 'new_purchase',
+            '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(),
+        ]);
+
+        $res = $this->get('/admin/platform-orders/' . $order->id);
+
+        $res->assertOk();
+
+        // Guardrails: 收费闭环/治理能力的核心动作必须可见（避免 UI 美化时误删/隐藏）。
+        $res->assertSee('标记支付并生效');
+        $res->assertSee('同步订阅');
+
+        // 操作表单（不 escape），确保 action URL 存在。
+        $res->assertSee('action="/admin/platform-orders/' . $order->id . '/mark-paid-and-activate"', false);
+        $res->assertSee('action="/admin/platform-orders/' . $order->id . '/activate-subscription"', false);
+
+        // 回执追加入口（锚点 + 表单 action）。
+        $res->assertSee('id="add-payment-receipt"', false);
+        $res->assertSee('action="/admin/platform-orders/' . $order->id . '/add-payment-receipt"', false);
+
+        $res->assertSee('action="/admin/platform-orders/' . $order->id . '/add-refund-receipt"', false);
+    }
+}