.main-image-bg {
    background-image: url(/website/images/body_bg.webp);
    background-size: cover; /* 关键属性 - 使图片覆盖整个区域 */
    background-position: center; /* 图片居中显示 */
    background-repeat: no-repeat; /* 防止图片重复 */
    /*background-attachment: fixed; !* 可选 - 使背景固定不随内容滚动 *!*/
}

.main-image-flow-bg {
    /*background-image: url(/website/images/flow_bg.png);*/
    background-image: url(/website/images/bottom_guide.png);
    background-size: cover; /* 关键属性 - 使图片覆盖整个区域 */
    background-position: center center;
    background-repeat: no-repeat;
    min-height: 419px;
}

@media (max-width: 576px) {
    .main-image-flow-bg {
        /*background-image: url(/website/images/flow_bg.png);*/
        background-image: url(/website/images/bottom_guide.png);
        background-size: cover; /* 关键属性 - 使图片覆盖整个区域 */
        background-position: center center;
        background-repeat: no-repeat;
        max-height: 210px;
    }
}