暗三元简单商业头部

<header class="bg-gray-900 text-gray-300 dark:bg-gray-dark dark:text-gray-light shadow-md">
  <div class="container mx-auto px-6 py-4">
    <div class="flex items-center justify-between">
      <div class="text-xl font-bold text-white dark:text-white">Business Name</div>
      <nav class="space-x-4">
        <a href="#" class="hover:text-white dark:hover:text-white">Home</a>
        <a href="#" class="hover:text-white dark:hover:text-white">About</a>
        <a href="#" class="hover:text-white dark:hover:text-white">Services</a>
        <a href="#" class="hover:text-white dark:hover:text-white">Contact</a>
      </nav>
    </div>
  </div>
</header>