如何在使用css过滤背景图像(悬停)时保持文本颜色？

<style>
    .container {
        position: relative;
        width: 300px;
        height: 200px;
        overflow: hidden;
    }

    .background-image {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-image: url('background.jpg');
        background-size: cover;
        filter: grayscale(100%);
    }

    .text {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        color: white;
        mix-blend-mode: difference;
    }
</style>

<div class="container">
    <div class="background-image"></div>
    <div class="text">
        <h1>这是一段文本</h1>
        <p>这是一段描述</p>
    </div>
</div>