头部组件

<header class="p-4 bg-gray-200 dark:bg-gray-800 rounded-lg shadow-md flex justify-between items-center">
    <div class="flex items-center">
        <img src="https://picsum.photos/50" alt="Logo" class="rounded-full shadow-md" />
        <h1 class="text-2xl font-bold text-gray-800 dark:text-white ml-2">My Blog</h1>
    </div>
    <nav class="flex space-x-4">
        <a href="#" class="text-gray-700 dark:text-gray-300 hover:text-gray-900 dark:hover:text-gray-100 transition duration-200">Home</a>
        <a href="#" class="text-gray-700 dark:text-gray-300 hover:text-gray-900 dark:hover:text-gray-100 transition duration-200">About</a>
        <a href="#" class="text-gray-700 dark:text-gray-300 hover:text-gray-900 dark:hover:text-gray-100 transition duration-200">Contact</a>
    </nav>
</header>