.tit {
        margin: 50px 0;
        text-align: center;
        clear: both;
    }
    
    .tit h2 {
        display: block;
        font-size: 45px;
        color: #333333;
        font-weight: bold;
        line-height: 60px;
    }
    
    .tit h2 i {
        display: block;
        font-style: normal;
        font-size: 20px;
        color: #666666;
        line-height: 30px;
        font-weight: normal;
        text-transform: uppercase;
    }
    
    .tit h2 b {
        font-weight: normal;
        color: #43b83b;
    }
    
    .mac dl {
        width: 100%;
        height: 520px;
        background: #2a323e;
        position: relative;
    }
    
    .mac dl dt {
        float: right;
        width: 640px;
    }
    
    .mac dl dt img {
        display: block;
        width: 640px;
        height: 520px;
    }
    
    .mac dl dd {
        float: left;
        width: 580px;
        height: 425px;
        padding: 45px;
        box-sizing: border-box;
        background: #fff;
        position: absolute;
        left: 60px;
        top: 60px;
    }
    
    .mac dl dd h5 {
        display: block;
        color:#0876E7;
        font-size: 24px;
        line-height: 40px;
        padding-bottom: 10px;
        position: relative;
    }
    
    .mac dl dd h5:before {
        content: "";
        width: 30px;
        height: 2px;
        background: #0876E7;
        position: absolute;
        left: 0;
        bottom: 3px;
    }
    
    .mac dl dd p {
        margin: 8px 0;
        font-size: 16px;
        line-height: 30px;
    }

    .form tr {
        border: 1px solid #ebebeb;
    }
    
    .form tr td {
        border: 1px solid #ebebeb;
        padding: 20px 25px;
        text-align: center;
    }
    
    .form tr:nth-child(2n-1) {
        background: #f0f0f0;
    }

    .prdt {
        height: auto;
        padding: 5px 0 60px;
        margin-top: 60px;
        background: #efefef;
    }
    
    .prdt li {
        float: left;
        width: 386px;
        margin-right: 20px;
        margin-bottom: 20px;
    }
    
    .prdt li:nth-child(3n) {
        margin-right: 0;
    }

    .ran dl {
        float: left;
        width: 590px;
        height: 200px;
        padding: 30px;
        margin-right: 20px;
        margin-bottom: 20px;
        box-sizing: border-box;
        box-shadow: 0px 0px 10px #dedede;
    }
    
    .ran dl:nth-child(2n) {
        margin-right: 0;
    }
    
    .ran dl dt {
        float: left;
        width: 125px;
        padding-top: 25px;
        padding-right: 35px;
        box-sizing: border-box;
    }
    
    .ran dl dd {
        float: left;
        width: 380px;
    }
    
    .ran dl dd h5 {
        color: #333;
        font-size: 20px;
        line-height: 45px;
    }
    
    .ran dl dd p {
        margin: 0;
        font-size: 16px;
        line-height: 28px;
    }

    .cesl {
        width: 100%;
        height: 500px;
        position: relative;
        background:url(/skin/images/79969bfd79d549f2a8e769af2fc182b8_20.jpg) no-repeat center top;
    }
    
    .ys_nav img {
        width: 100%;
        display: block;
    }
    
    .ys_nr {
        width: 100%;
    }
    
    .ys_nr p {
        width: 100%;
    }
    
    .ys_nav ul {
        width: 100%;
        position: absolute;
        left: 0;
        top: 0;
        height: 100%;
    }
    
    .ys_nav li {
        width: 25%;
        height: 100%;
        float: left;
        border-right: 1px solid rgba(255, 255, 255, 0.5);
        box-sizing: border-box;
        position: relative;
        -webkit-transition: .3s;
        -moz-transition: .3s;
        transition: .3s;
    }
    
    .ys_nav li:last-child {
        border-right: 0;
    }
    
    .ys_nav li .sbt {
        width: 100%;
        text-align: center;
        position: absolute;
        left: 0;
        top: 15%;
        opacity: 1;
        -webkit-transition: .3s;
        -moz-transition: .3s;
        transition: .3s;
    }
    
    .ys_nav li .sbt img {
        width: 80px;
        display: block;
        margin: 0 auto;
    }
    
    .ys_nav li .sbt h5 {
        font-size: 32px;
        color: #fff;
        margin-top: 20px;
        padding-bottom: 40px;
        line-height: 45px;
        position: relative;
    }
    
    .ys_nav li .sbt h5 i {
        font-style: normal;
        font-size: 26px;
        color: #fff;
        display: block;
        line-height: 36px;
        font-weight: normal;
    }
    
    .ys_nav li .sbt span:after {
        position: absolute;
        content: '';
        width: 64px;
        height: 2px;
        background: #fff;
        bottom: -60px;
        left: 44%;
    }
    
    .ys_nav li dl {
        display: block;
        text-align: left;
        width: 100%;
        height: 100%;
        background: rgba(33, 131, 231);
        position: relative;
        z-index: 5;
        opacity: 0;
        -webkit-transition: .3s;
        -moz-transition: .3s;
        transition: .3s;
    }
    
    .ys_nav li dt {
        width: 100%;
    }
    
    .ys_nav li dd {
        width: 100%;
        padding: 80px 30px;
        box-sizing: border-box;
    }
    
    .ys_nav li dd span {
        font-size: 28px;
        color: #fff;
        margin-bottom: 22px;
        font-weight: normal;
        display: block;
        border-bottom: 1px dashed #fff;
    }
    
    .ys_nav li dd em {
        display: block;
        line-height: 38px;
        color: #fff;
        font-size: 16px;
        font-weight: normal;
        font-style: normal;
    }
    
    .ys_nav li dd p {
        line-height: 30px;
        font-size: 16px;
        color: #fff;
        margin-bottom: 30px;
    }
    
    .ys_nav li dd .ys_btn {
        width: 200px;
        height: 40px;
        display: block;
        border: 3px solid #fff;
        line-height: 40px;
        text-align: center;
        color: #fff;
        margin-top: 65px;
    }
    
    .ys_nav li.cur .sbt {
        opacity: 0;
    }
    
    .ys_nav li.cur dl {
        opacity: 1;
    }