diff --git a/tests/Feature/AdminPlatformOrderIndexRefundInconsistentFilterShouldWorkTest.php b/tests/Feature/AdminPlatformOrderIndexRefundInconsistentFilterShouldWorkTest.php
new file mode 100644
index 0000000..3e5f8aa
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderIndexRefundInconsistentFilterShouldWorkTest.php
@@ -0,0 +1,100 @@
+<?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 AdminPlatformOrderIndexRefundInconsistentFilterShouldWorkTest 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_refund_inconsistent_filter_should_include_and_exclude_expected_orders(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'po_refund_inconsistent_filter_plan',
+            'name' => '退款不一致筛选测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        // A: payment_status=refunded 但 refund_total < paid_amount（应命中）
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_REFUND_INCONSISTENT_YES_0001',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            'payment_status' => 'refunded',
+            'payable_amount' => 10,
+            'paid_amount' => 10,
+            'meta' => [
+                'refund_summary' => [
+                    'total_amount' => 9,
+                ],
+            ],
+        ]);
+
+        // B: payment_status=paid 且 refund_total >= paid_amount + 容差（应命中：状态非 refunded 但退款已覆盖已付，口径按系统容差）
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_REFUND_INCONSISTENT_YES_0002',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            'payment_status' => 'paid',
+            'payable_amount' => 10,
+            'paid_amount' => 10,
+            'meta' => [
+                'refund_summary' => [
+                    // 默认容差为 0.01，因此这里用 10.02 确保命中“退款已覆盖已付 + 容差”
+                    'total_amount' => 10.02,
+                ],
+            ],
+        ]);
+
+        // C: payment_status=paid 且 refund_total < paid_amount（不命中）
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_REFUND_INCONSISTENT_NO_0001',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            'payment_status' => 'paid',
+            'payable_amount' => 10,
+            'paid_amount' => 10,
+            'meta' => [
+                'refund_summary' => [
+                    'total_amount' => 1,
+                ],
+            ],
+        ]);
+
+        $res = $this->get('/admin/platform-orders?refund_inconsistent=1');
+        $res->assertOk();
+
+        $res->assertSee('PO_REFUND_INCONSISTENT_YES_0001', false);
+        $res->assertSee('PO_REFUND_INCONSISTENT_YES_0002', false);
+        $res->assertDontSee('PO_REFUND_INCONSISTENT_NO_0001', false);
+    }
+}