材料设计验证码组件

<div class="flex flex-col items-center justify-center p-6 bg-white rounded-lg shadow-md max-w-sm mx-auto dark:bg-gray-800 dark:shadow-lg">
    <h2 class="text-lg font-semibold text-gray-800 dark:text-gray-200">Please prove you're human</h2>
    <div class="mt-4 mb-6">
        <img src="https://picsum.photos/200/100" alt="CAPTCHA Image" class="w-full h-auto rounded-lg shadow-sm" />
    </div>
    <div class="flex items-center justify-between w-full">
        <input type="text" placeholder="Enter the text" class="border border-gray-300 rounded-lg p-2 w-3/4 dark:bg-gray-700 dark:border-gray-600 dark:text-gray-200" />
        <button class="ml-2 px-4 py-2 bg-blue-500 text-white rounded-lg shadow hover:bg-blue-600 transition duration-200">Submit</button>
    </div>
    <div class="mt-4 text-sm text-gray-600 dark:text-gray-400">
        <p>If you can't read the text, refresh to get a new image.</p>
    </div>
</div>