.page_aboutus-width {
    max-width: 1400px;
    padding: 35px 100px;
    margin: 0 auto;
}


.page_aboutus-width img {
    width: 100%;
    height: auto;
    vertical-align: top;
}

.page_aboutus-width .mb_img {
    display: none;
}


/* secetion text-vedio */
.page_aboutus-width .vedio_title {
    font-size: calc(25px + 0.6vw);
    font-weight: 600;
    margin: calc(20px + .7vw) 0;
}

.page_aboutus-width .vedio_desc {
    font-size: 18px;
    margin-bottom: 25px;
}

.page_aboutus-width .vedio-section {
    position: relative;
    overflow: hidden;
}

.page_aboutus-width .vedio-section #video_box {
    position: absolute;
    height: 100%;
    width: 100%;
    z-index: 1;
    border-radius: 15px;
    background: black;
}

.page_aboutus-width .vedio_cover {
    position: relative;
    z-index: 2;
}

.page_aboutus-width .active {
    opacity: 0;
    z-index: 0;
}

.page_aboutus-width .pause_btn {
    position: absolute;
    right: 2%;
    bottom: 5%;
    cursor: pointer;
}

@media (max-width:1000px) {
    .page_aboutus-width {
        padding: 30px 20px;
    }
}

@media (max-width:768px) {
    .page_aboutus-width .vedio_title {
        font-size: 45px;
    }

    .page_aboutus-width .vedio_desc {
        font-size: 16px;
    }

    .page_aboutus-width .pc_img {
        display: none;
    }

    .page_aboutus-width .mb_img {
        display: block;
    }
}

@media (max-width:500px) {
    .page_aboutus-width .vedio_title {
        font-size: 8vw;
    }

    .page_aboutus-width .vedio_desc {
        font-size: 4vw;
    }
}

/* secetion text-vedio end*/



/* secetion text-image */
.text_image_section {
    background: #f7f7f7;
    margin-top: 35px;
}

.text_image_list .text_image_item {
    display: flex;
    justify-content: space-between;
    padding: calc(20px + 1.5vw) 0;
}

.text_image_list .text_image_item .text_part {
    width: 47%;
}

.text_image_list .text_image_item .image_part {
    width: 46%;
    display: flex;
    align-items: center;
}

.text_image_item .text_part {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.text_image_item .text_part .img_title {
    font-size: calc(20px + .5vw);
    line-height: 2;
    font-weight: 600;
}

.text_image_item .text_part .desc {
    font-size: calc(14px + .11vw);
}

@media (min-width:769px) {
    .text_image_list .left_img {
        flex-direction: row-reverse;
    }
}

@media (max-width:768px) {
    .text_image_list .text_image_item {
        display: block;
        padding: calc(20px + 4vw) 0;
    }

    .text_image_list .text_image_item>div {
        width: 100% !important;
    }

    .text_image_item .text_part .img_title {
        font-size: 40px;
    }

    .text_image_item .text_part .desc {
        font-size: 16px;
    }
}

@media (max-width:500px) {
    .text_image_item .text_part .img_title {
        font-size: 6.4vw;
    }

    .text_image_item .text_part .desc {
        font-size: 4vw;
    }
}

/* secetion text-image end*/