diff --git a/resources/views/admin/platform_orders/index.blade.php b/resources/views/admin/platform_orders/index.blade.php
index 301cbe2..192bcd9 100644
--- a/resources/views/admin/platform_orders/index.blade.php
+++ b/resources/views/admin/platform_orders/index.blade.php
@@ -1045,7 +1045,10 @@
                         }
                     @endphp
                     @if($rowLeadId > 0)
-                        <div class="muted muted-xs">线索：<a class="link muted-xs" href="{!! $rowLeadUrl !!}">#{{ $rowLeadId }}</a></div>
+                        <div class="muted muted-xs">
+                            <span class="muted muted-xs">线索：</span>
+                            <a class="link muted-xs" href="{!! $rowLeadUrl !!}">#{{ $rowLeadId }}</a>
+                        </div>
                     @endif
                 </td>
                 <td>
diff --git a/tests/Feature/AdminPlatformOrderIndexLeadPrefixUsesMutedXsSpanTest.php b/tests/Feature/AdminPlatformOrderIndexLeadPrefixUsesMutedXsSpanTest.php
new file mode 100644
index 0000000..f129a73
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderIndexLeadPrefixUsesMutedXsSpanTest.php
@@ -0,0 +1,65 @@
+<?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 AdminPlatformOrderIndexLeadPrefixUsesMutedXsSpanTest 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_lead_prefix_is_wrapped_by_muted_xs_span(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+
+        $plan = Plan::query()->create([
+            'code' => 'po_index_lead_prefix_muted_xs_plan',
+            'name' => '平台订单列表线索前缀样式测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_INDEX_LEAD_PREFIX_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(),
+            'meta' => [
+                'platform_lead_id' => 88,
+            ],
+        ]);
+
+        $this->get('/admin/platform-orders?keyword=PO_INDEX_LEAD_PREFIX_0001')
+            ->assertOk()
+            ->assertSee('<span class="muted muted-xs">线索：</span>', false);
+    }
+}