@charset "utf-8";


/* .head-page .item.tm-research>a span {
    color: #ff0000;
}
.head-page .item.tm-research>a::after {
    transform: scale(1);
    opacity: 1;
} */
.head-page .item.tm-about>a span {
    color: #ff0000;
}
.head-page .item.tm-about>a::after {
    transform: scale(1);
    opacity: 1;
}

.page_desc {
    margin-top: 40px;
}
.research .list{
    width: 23.5%;
    margin-right: 2%;
}
.research .list:nth-child(4n){
    margin-right: 0;
}
.research .list .imgs{
    height: 182px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.research .list .imgs img{
    max-height: 100%;
}
.research .list .tit {
    text-align: center;
    margin-top: 20px;
}
.standard .list .imgs{
    display: flex;
    align-items: center;
    justify-content: center;
}
.standard .list .tit {
    text-align: center;
    margin: 20px 0;
}
.standard .lists_top{
    padding: 0 6%;
    box-sizing: border-box;
}
.standard .lists_top .list{
    width: 46%;
    margin-right: 8%;
}
.standard .lists_top .imgs{
    height: 380px;
}
.standard .lists_top .list:nth-child(2n){
    margin-right: 0;
}
.standard .lists_bottom .list{
    width: 23.95%;
    margin-right: 1.4%;
}
.standard .lists_bottom .list:nth-child(4n){
    margin-right: 0;
}
.patent .list{
    width: 23.5%;
    margin-right: 2%;
}
.patent .list:nth-child(4n){
    margin-right: 0;
}
.patent .list .tit {
    text-align: center;
    margin: 20px 0;
}
.testing .list .imgs{
    display: flex;
    align-items: center;
    justify-content: center;
}
.testing .list .imgs img{
    display: block;
}
.testing .list .tit {
    text-align: center;
    margin: 20px 0;
}
.testing .lists_top{
    padding: 0 6%;
    box-sizing: border-box;
}
.testing .lists_top .list{
    width: 46%;
    margin-right: 8%;
}
.testing .lists_bottom .imgs{
    height: 278px;
}
.testing .lists_top .list:nth-child(2n){
    margin-right: 0;
}

.testing .lists_bottom .list{
    width: 32%;
    margin-right: 2%;
}
.testing .lists_bottom .list:nth-child(3n){
    margin-right: 0;
}
@media only screen and (max-width:1400px) {
    .testing .lists_bottom .imgs {
        height: 269px;
    }
}
@media only screen and (max-width:1200px) {
    .research .list .imgs{
        height: 166px;
    }
    .testing .lists_bottom .imgs {
        height: 234px;
    }
    .standard .lists_top .imgs {
        height: 313px;
    }
}
@media only screen and (max-width:1024px) {
    .research .list .imgs{
        height: 142px;
    }
    .testing .lists_bottom .imgs {
        height: 200px;
    }
    .standard .lists_top .imgs {
        height: 267px;
    }
    .standard .lists_bottom .list {
        width: 32%;
        margin-right: 2%;
    }
    .standard .lists_bottom .list:nth-child(4n) {
        margin-right: 2%;
    }
    .standard .lists_bottom .list:nth-child(3n) {
        margin-right: 0;
    }
}
@media only screen and (max-width:768px) {
    .research .list {
        width: 100%;
        margin-right: 0;
    }
    .research .list .imgs {
        height: auto;
    }
    .research .list{
        margin-bottom: 20px;
    }
    .research .list:last-child{
        margin-bottom: 0;
    }
    .page_desc {
        margin-top: 15px;
    }
    .testing .lists_bottom .list {
        width: 100%;
        margin-right: 0;
    }
    .testing .lists_bottom .imgs{
        height: auto;
    }
    .testing .lists_top{
        padding: 0;
    }
    .testing .lists_top .list {
        width: 48%;
        margin-right: 4%;
    }
    .standard .lists_top .list {
        width: 100%;
        margin-right: 0;
    }
    .standard .lists_top {
        padding: 0;
    }
    .standard .lists_top .imgs{
        height: auto;
    }
    .standard .lists_bottom .list {
        width: 100%;
        margin-right: 0;
    }
    .patent .list {
        width: 100%;
        margin-right: 0;
    }
}