/****************************** header bg image effects ******************************/
@keyframes moveBackground {
    from {
        background-position: 0% 0%;
    }
    to {
        background-position: 100% 100%;
    }
}

.about_us_header {
    height: 60vh;
    width: 100%;
    margin: 0;
    /*background-image: url('{__PC__}/default/images/company_main_bg.jpg');*/
    background-position: center;
    background-size: cover;
    animation: moveBackground 5s linear infinite; /* 调整动画时间和速度 */
}

/***************************** history *****************************/