admin-components: style row-warn hint as subtle alert and assert scoping

public/css/admin-components.css

@@ -90,7 +90,7 @@
 .platform-orders-table.is-compact td{padding-top:8px;padding-bottom:8px;}
 .platform-orders-table.is-compact .muted-xs{font-size:12px;}
 .platform-orders-table .row-meta{margin-top:2px;}
-.platform-orders-table .row-warn{margin-top:4px;}
+.platform-orders-table .row-warn{margin-top:4px;padding:4px 6px;border-left:3px solid #d9534f;background:#fff6f6;border-radius:4px;}
 
 /* 平台订单列表：精简视图也要可达的治理提示（对账/退款不一致） */
 .platform-orders-table .governance-hints{margin-bottom:6px;}

tests/Feature/AdminPlatformOrderIndexRowWarnStyleScopedTest.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlatformOrderIndexRowWarnStyleScopedTest 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_row_warn_style_is_scoped_under_platform_orders_table_only(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        // 通过直接读取 CSS 内容做“范围约束”断言：必须以 .platform-orders-table 开头，避免全局污染
+        $css = file_get_contents(public_path('css/admin-components.css'));
+
+        $this->assertIsString($css);
+        $this->assertStringContainsString('.platform-orders-table .row-warn{', $css);
+
+        // 仅避免“全局 .row-warn{...}”这种写法（会污染其它页面）。
+        $this->assertStringNotContainsString("\n.row-warn{", $css);
+    }
+}