chore(admin-ui): apply list-card component to plans index

resources/views/admin/plans/index.blade.php

@@ -201,18 +201,19 @@
     </div>
 </div>
 
-<div class="card">
-    <div class="flex-between">
+<div class="card list-card">
+    <div class="list-card-header">
         <div>
-            <h3>套餐列表</h3>
-            <p class="muted muted-xs">后续将从这里进入套餐详情、授权项与订阅联动。</p>
+            <h3 class="list-card-title">套餐列表</h3>
+            <p class="muted muted-xs list-card-subtitle">后续将从这里进入套餐详情、授权项与订阅联动。</p>
         </div>
         @php
             $createPlanUrl = \App\Support\BackUrl::withBack('/admin/plans/create', $selfWithoutBack);
         @endphp
         <a href="{!! $createPlanUrl !!}" class="btn btn-sm">新建套餐</a>
     </div>
-    <table>
+    <div class="list-card-body">
+    <table class="list-card-table">
         <thead>
         <tr>
             <th>ID</th>
@@ -308,6 +309,7 @@
         @endforelse
         </tbody>
     </table>
+    </div>
 </div>
 
 <div class="pagination-wrap">{{ $plans->links() }}</div>

tests/Feature/AdminPlansIndexShouldUseListCardStructureTest.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlansIndexShouldUseListCardStructureTest 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_admin_plans_index_should_use_list_card_structure(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $response = $this->get('/admin/plans');
+        $response->assertOk();
+
+        // 护栏：套餐列表区域应使用统一 List Card 结构，便于全站列表页风格统一。
+        $response->assertSee('list-card', false);
+        $response->assertSee('list-card-header', false);
+        $response->assertSee('list-card-body', false);
+        $response->assertSee('list-card-table', false);
+    }
+}