如何在鼠标悬停时显示图片顶部的链接，同时降低图片的不透明度？

<div class="image-container">
    <img src="your-image.jpg" alt="Your Image" class="image">
    <a href="your-link.html" class="link">Your Link</a>
</div>

.image-container {
    position: relative;
    display: inline-block;
}

.image {
    width: 100%;
    transition: opacity 0.3s ease;
}

.link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-container:hover .image {
    opacity: 0.7;
}

.image-container:hover .link {
    opacity: 1;
}