body {
    margin: 0 auto;
    font-family: "PingFang SC", Helvetica, Arial, "Hiragino Sans GB", "Microsoft Yahei";
}

.about-top {
    height: 40px;
}

.about-top .about-bj {
    height: 30px;
    padding-top: 5px;
    margin-left: 10px;
}

.about-top .about-bj .about-m1 {
    display: inline-block;
    width: 110px;
    height: 30px;
    line-height: 27px;
    text-align: center;
}

.about-top .about-bj .about-m1 img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
}

.about-top .about-bj .about-m2 {
    display: inline-block;
    margin-left: -20px;
    width: 23px;
    height: 30px;
    line-height: 27px;
    text-align: center;
}

.about-top .about-bj .about-m2 img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
}

.about-top .about-tet {
    width: 98%;
    position: absolute;
    top: 10px;
    left: 16px;
}

.about-top .about-tet .ko {
    display: inline-block;
    float: left;
    margin-top: 7px;
    margin-right: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #F7F7F5;
}

.about-top .about-tet h3 {
    float: left;
    height: 20px;
    line-height: 20px;
    font-family: PingFangSC-Regular;
    font-size: 14px;
    color: #F7F7F5;
    letter-spacing: 0;
}

.about-top .about-tet a {
    display: inline-block;
    float: right;
    height: 17px;
    line-height: 17px;
    margin-right: 16px;
    margin-top: 3px;
    font-family: PingFangSC-Regular;
    font-size: 12px;
    color: #848484;
    letter-spacing: 0;
}

.about-contact {
    width: 1100px;
    height: 274px;
    margin: 0 auto;
    background: #fff;
    padding-top: 12px;
}

.about-contact .about-contact-nav .about-nav {
    width: 726px;
    height: 270px;
    float: left;
    margin-left: 20px;
    position: relative;
    background: #F7F7F5;
}

.about-contact .about-contact-nav .about-nav .about-con {
    height: 230px;
    background: #FFFFFF;
    border: 1px solid #D6D6D6;
    box-sizing: border-box;
    border-top: none;
}

.about-contact .about-contact-nav .about-nav .about-con .about-img {
    float: left;
    margin-left: 16px;
    margin-top: 30px;
    width: 273px;
    height: 169px;
    line-height: 166px;
    text-align: center;
}

.about-contact .about-contact-nav .about-nav .about-con .about-img img {
    width: 100%;
    height: auto;
    max-height: 100%;
    vertical-align: middle;
}

.about-contact .about-contact-nav .about-nav .about-con .about-textt {
    float: left;
    margin-left: 22px;
}

.about-contact .about-contact-nav .about-nav .about-con .about-textt h1 {
    margin-top: 25px;
    height: 28px;
    line-height: 28px;
    font-family: PingFangSC-Semibold;
    font-size: 20px;
    color: #777777;
}

.about-contact .about-contact-nav .about-nav .about-con .about-textt p {
    text-indent: 3em;
    margin-top: 10px;
    width: 403px;
    height: 140px;
    line-height: 20px;
    font-family: PingFangSC-Regular;
    font-size: 14px;
    color: #777777;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 7;
    overflow: hidden;
    text-align: justify;
}

.about-contact .about-contact-nav .contact-nav {
    width: 322px;
    height: 270px;
    float: left;
    margin-left: 12px;
    position: relative;
    background: #F7F7F5;
}

.about-contact .about-contact-nav .contact-nav .about-con {
    background: #FFFFFF;
    border: 1px solid #D6D6D6;
    border-top: none;
    box-sizing: border-box;
    height: 230px;
}

.about-contact .about-contact-nav .contact-nav .about-con .about-context {
    height: 110px;
    padding-top: 28px;
    margin-left: 30px;
}

.about-contact .about-contact-nav .contact-nav .about-con .about-context p {
    margin-bottom: 25px;
    line-height: 20px;
    font-family: PingFangSC-Regular;
    font-size: 16px;
    color: #464646;
    letter-spacing: 0;
}

.about-contact .about-contact-nav .contact-nav .about-con .about-conimg {
    margin-top: 20px;
    margin-left: 30px;
}

.about-contact .about-contact-nav .contact-nav .about-con .about-conimg .conimg {
    float: left;
    width: 30px;
    height: 30px;
    line-height: 27px;
    text-align: center;
}

.about-contact .about-contact-nav .contact-nav .about-con .about-conimg .conimg img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
}

.about-contact .about-contact-nav .contact-nav .about-con .about-conimg span {
    display: inline-block;
    height: 22px;
    line-height: 22px;
    margin-left: 12px;
    margin-top: 4px;
    font-family: PingFangSC-Regular;
    font-size: 16px;
    color: #464646;
    letter-spacing: 0;
}

.pro-news {
    padding-top: 12px;
    width: 1100px;
    height: 597px;
    margin: 0 auto;
    background: #fff;
}

.pro-news .pro-news-nav {
    width: 1060px;
    margin-left: 20px;
}

.pro-news .pro-news-nav .pro-nav {
    width: 726px;
    height: 270px;
    float: left;
    position: relative;
    background: #F7F7F5;
}

.pro-news .pro-news-nav .pro-nav .about-con ul {
    width: 726px;
    height: 550px;
    background: #FFFFFF;
    border: 1px solid #D6D6D6;
    border-top: none;
    display: flex;
    flex-wrap: wrap;
    box-sizing: border-box;
}

.pro-news .pro-news-nav .pro-nav .about-con ul li {
    width: 228px;
    height: 240px;
    margin-left: 6px;
    margin-right: 6px;
    margin-bottom: 10px;
    margin-top: 10px;
    overflow: hidden;
    border: 1px solid #e7e7e7;
    box-sizing: border-box;
    background: #FFFFFF;
}

.pro-news .pro-news-nav .pro-nav .about-con ul li .aboutli-img {
    width: 210px;
    height: 170px;
    line-height: 167px;
    text-align: center;
    margin: 0 auto;
    margin-top: 8px;
}

.pro-news .pro-news-nav .pro-nav .about-con ul li .aboutli-img img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
}

.pro-news .pro-news-nav .pro-nav .about-con ul li p {
    display: block;
    width: 210px;
    height: 40px;
    line-height: 20px;
    font-family: PingFangSC-Regular;
    font-size: 14px;
    color: #515151;
    letter-spacing: 0;
    overflow: hidden;
    margin: 0 auto;
    margin-top: 12px;
    margin-left: 9px;
}

.pro-news .pro-news-nav .pro-nav .about-con ul li:hover {
    background: #D8D8D8;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.1);
}

.pro-news .pro-news-nav .news-nav {
    width: 322px;
    float: left;
    margin-left: 12px;
    position: relative;
    background: #F7F7F5;
}

.pro-news .pro-news-nav .news-nav .about-con {
    width: 322px;
    background: #FFFFFF;
    border: 1px solid #D6D6D6;
}

.pro-news .pro-news-nav .news-nav .about-con a {
    display: block;
    width: 310px;
    height: 70px;
    margin-top: 13px;
    margin-left: 6px;
}

.pro-news .pro-news-nav .news-nav .about-con a .ko1 {
    float: left;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    margin-top: 13px;
    margin-left: 10px;
    background: #AAAAAA;
}

.pro-news .pro-news-nav .news-nav .about-con a h1 {
    float: left;
    width: 205px;
    height: 22px;
    margin-top: 4px;
    margin-left: 8px;
    font-family: PingFangSC-Regular;
    font-size: 16px;
    color: #5B5B5B;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pro-news .pro-news-nav .news-nav .about-con a p {
    float: left;
    margin-top: 6px;
    margin-left: 24px;
    width: 276px;
    height: 34px;
    line-height: 17px;
    font-family: PingFangSC-Regular;
    font-size: 12px;
    color: #717171;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.pro-news .pro-news-nav .news-nav .about-con a:hover {
    background: #D4D4D4;
}

.pro-news .pro-news-nav .news-nav .about-con .key3 {
    margin-top: 6px;
    width: 100%;
    height: 1px;
    border: 1px dashed #D6D6D6;
    box-sizing: border-box;
}

.supply {
    padding-top: 12px;
    width: 1100px;
    height: 270px;
    margin: 0 auto;
    background: #fff;
    padding-bottom: 20px;
}

.supply .supply-nav {
    position: relative;
    width: 1060px;
    margin-left: 20px;
    background: #F7F7F5;
}

.supply .supply-nav .about-top .about-tet {
    width: 98%;
    top: 5px;
}

.supply .supply-nav .about-con {
    height: 230px;
    background: #FFFFFF;
    border: 1px solid #D6D6D6;
    border-top: none;
    box-sizing: border-box;
}

.supply .supply-nav .about-con a {
    display: block;
    float: left;
    width: 234px;
    height: 190px;
    margin-top: 12px;
    margin-left: 26px;
    position: relative;
}

.supply .supply-nav .about-con a .about-img {
    width: 234px;
    height: 190px;
    line-height: 187px;
    text-align: center;
    border: 1px solid #e7e7e7;
    box-sizing: border-box;
}

.supply .supply-nav .about-con a .about-img img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
}

.supply .supply-nav .about-con a .ping {
    position: absolute;
    display: none;
    width: 100%;
    height: 34px;
    margin-top: -34px;
    z-index: 300;
    background: rgba(0, 0, 0, 0.5);
}

.supply .supply-nav .about-con a .ping p {
    width: 204px;
    height: 34px;
    margin-left: 15px;
    text-align: center;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.supply .supply-nav .about-con a:hover .ping {
    display: block;
    font-family: PingFangSC-Regular;
    font-size: 12px;
    color: #FFFFFF;
    letter-spacing: 0;
    background: rgba(0, 0, 0, 0.5);
}