.iabout {
    padding: 94px 0px 380px;
    background: #F1F7F7;
    position: relative;
}
.video_ul {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 0.3rem;
    position: absolute;
    width: 100%;
    top: -220px;
    left: 0px;
}
.iwproduct_list_text {
    font-size: 18px;
    text-align: center;
}
.ty_title2{
    font-size:26px;
    line-height:1.7;
}
.znavw .znavl ul li{
    width:auto;
    padding:0px 2vw;
}
.aboutal {
    width: 48vw;
}
.product_title {
    font-size: 0.2rem;
}
.rctdtc-nr{
    height:60%;
}
.footer-topbr li:nth-child(6) {
    width:12vw;
}
.rctd2{
	width:2.63rem;
}
@media screen and (max-width: 1200px) {
    .video_ul {
        display: grid;
        grid-template-columns: repeat(1, 1fr);
        grid-gap: 0.3rem;
        position: relative;
        width: 100%;
        top: 30px;
        left: 0px;
    }    .iabout {
        padding: 40px 0px;
        background: #F1F7F7;
        position: relative;
    }    .iabout2 ul li:nth-child(3), .iabout2 ul li:nth-child(4) {
        grid-column: span 3;
    }
    .iabout2 ul li:nth-child(5) {
        grid-column: span 6;
    }.ty_title2 {
        color: #000000;
        font-size: 20px;
        line-height: 1.5;
        text-align: center;
    }.iwproduct_list_text {
        font-size: 14px;
    }.iwproduct_list li:nth-child(3), .iwproduct_list li:nth-child(4), .iwproduct_list li:nth-child(5) {
        grid-column: span 3;
    }    .aboutal {
        width: 100%;
    }.aboutal1 {
        font-size: 16px;
        font-weight: 700;
        letter-spacing: 0px;
        line-height: 1.7;
        color: rgba(46, 46, 46, 1);
    }.about {
    padding: 40px 0px;
}.fzlc1{
    font-size:16px;
}.qywhwl1a {
        font-size: 16px;
        font-weight: 900;
        letter-spacing: 0px;
        line-height: 1;
        color: #000;
        text-transform: uppercase;
    }.qywhwl2 {
        font-size: 16px;
        font-weight: 700;
        letter-spacing: 0px;
        line-height: 1.4;
        color: rgba(71, 167, 56, 1);
        margin: 20px 0px;
    }.swqtl2 {
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0px;
    line-height: 26px;
    color: rgba(0, 0, 0, 1);
    padding-left: 20px;
}
}