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

li {
    list-style: none;
}

a {
    text-decoration: none;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.nav {
    margin-bottom: 100px;
}

.nav .nav-center {
    width: 1100px;
    margin: 0 auto;
}

.nav .nav-center .nav-listing {
    padding-top: 30px;
    width: 230px;
}

.nav .nav-center .nav-listing .jiazai {
    height: 44px;
    line-height: 44px;
    text-align: center;
    background-image: linear-gradient(0deg, #2de6d5 0%, #14c9ab 100%);
}

.nav .nav-center .nav-listing .jiazai span {
    font-family: PingFangSC-Medium;
    font-size: 16px;
    line-height: 22px;
    height: 22px;
    color: #FFFFFF;
    letter-spacing: 0;
}

.nav .nav-center .nav-listing ul {
    background-image: linear-gradient(-176deg, #ffffff 0%, #f2f2f2 100%);
}

.nav .nav-center .nav-listing ul li {
    width: 230px;
    height: 46px;
    line-height: 46px;
    text-align: center;
}

.nav .nav-center .nav-listing ul li img {
    float: left;
    margin-top: 17px;
    margin-left: 20px;
    width: 5px;
    height: 12px;
}

.nav .nav-center .nav-listing ul li span {
    height: 22px;
    line-height: 22px;
    font-family: PingFangSC-Regular;
    font-size: 16px;
    color: #AAAAAA;
    margin-left: -26px;
}

.nav .nav-center .nav-listing ul li span:hover {
    color: #505050;
}

.nav .nav-center .nav-listing ul li .key2 {
    width: 200px;
    height: 1px;
    margin-left: 15px;
    background: #E5E5E5;
    margin-top: -2px;
}

.nav .nav-center .nav-listing ul .active {
    color: #505050;
}

.nav .nav-center .nav-img {
    width: 870px;
    padding-top: 30px;
}

.nav .nav-center .nav-img .img-top h4 {
    margin-top: 10px;
    margin-left: 49px;
    height: 22px;
    line-height: 22px;
    font-family: PingFangSC-Regular;
    font-size: 16px;
    color: #494949;
}

.nav .nav-center .nav-img .img-top .img-top-daoheng {
    float: right;
    margin-top: -20px;
    font-family: PingFangSC-Regular;
    font-size: 12px;
    color: #272727;
    letter-spacing: 0;
}

.nav .nav-center .nav-img .img-top .img-top-daoheng span {
    font-size: 12px;
    height: 17px;
    color: #000000;
    letter-spacing: 0;
    line-height: 17px;
}

.nav .nav-center .nav-img .img-top .img-top-daoheng span:last-child a {
    color: #689EDE;
}

.nav .nav-center .nav-img .img-top .key {
    width: 826px;
    height: 2px;
    margin-top: 10px;
    margin-left: 47px;
    background: #EDEDED;
}

.nav .nav-center .nav-img .img-top .key3 {
    width: 72px;
    height: 5px;
    margin-top: -3px;
    margin-left: 47px;
    background: #1BCBAE;
}

.nav .nav-center .nav-img ul {
    margin-top: 19px;
    margin-left: 26px;
    margin-bottom: 108px;
}

.nav .nav-center .nav-img ul li {
    float: left;
    margin-top: 20px;
    margin-left: 20px;
    width: 260px;
    height: 272px;
}

.nav .nav-center .nav-img ul li .img-right {
    border: 1px solid #d5d5d5;
    box-sizing: border-box;
    border-bottom: none;
    width: 260px;
    height: 210px;
    line-height: 207px;
    text-align: center;
}

.nav .nav-center .nav-img ul li .img-right img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
}

.nav .nav-center .nav-img ul li .img-text {
    height: 60px;
    background: #FFFFFF;
    border: 1px solid #D5D5D5;
    box-sizing: border-box;
}

.nav .nav-center .nav-img ul li .img-text:hover {
    background: #1BCBAE;
    color: #fff;
}

.nav .nav-center .nav-img ul li .img-text:hover p {
    color: #fff;
}

.nav .nav-center .nav-img ul li .img-text:hover .img-txx {
    background: #1BCBAE;
}

.nav .nav-center .nav-img ul li .img-text p {
    float: left;
    font-family: PingFangSC-Regular;
    font-size: 14px;
    margin-top: 10px;
    margin-left: 12px;
    color: #000000;
    letter-spacing: 0;
    width: 186px;
    height: 40px;
    line-height: 20px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.nav .nav-center .nav-img ul li .img-text .img-txx {
    float: right;
    width: 50px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    background: #FFFFFF;
    margin-top: -1px;
    border-top: 1px solid #d5d5d5;
    border-left: 1px solid #D5D5D5;
    border-bottom: 1px solid #d5d5d5;
    box-sizing: border-box;
}

.nav .nav-center .nav-img ul li .img-text .img-txx img {
    width: 8.7px;
    height: 21px;
}

.nav .nav-center .nav-img .fenye {
    margin: 0 auto;
}