.bg {
        /* 背景图片设置 */
        background-image: url('background.jpg'); /* 替换为你的背景图片 */
        background-size: cover;
        background-position: center;
        height: 100%;
        position: relative;
    }

    .content {
        text-align: center;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        color: white;
    }

    .content h1 {
        font-size: 2.5em;
        margin-bottom: 0.5em;
    }

    .content p {
        font-size: 1.2em;
    }

    .button {
        display: inline-block;
        margin: 20px 10px;
        padding: 10px 20px;
        border-radius: 5px;
        background-color: #007BFF;
        color: white;
        text-decoration: none;
        transition: background-color 0.3s;
    }

    .button:hover {
        background-color: #0056b3;
    }
</style>