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

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);
+    }
+}