.dance-wrap {
    background: #fff url('../image/junma-banner-bg.jpg') top center no-repeat;
    background-size: 100%;
}
.dance-wrap .case-intro{
    margin-top: 6%;
}
.intro{
    width: 100%;
    padding: 6.2% 13.5% 0 18.7%;
    box-sizing: border-box;
    font-size: 0;
}
.dance-wrap .main .intro{
    margin-top: 4%;
    background: rgba(249, 249, 249, 1) url(../image/juma-bg1.jpg) no-repeat 50% 50%;
    background-size: cover;
}
.intro .text{
    display: inline-block;
    width: 22%;
    vertical-align: middle;
    font-size: 14px;
    line-height: 30px;
    color: #666666;
}
.dance-wrap .main .intro .img{
    display: inline-block;
    width: 78%;
    vertical-align: middle;
    padding-left: 18%;
    box-sizing: border-box;
}
.module2{
    padding: 0 13%;
    background: url(../image/junma-bg2.jpg) no-repeat 50% 50%;
    background-size: cover;
}
.module2 .limit_width{
    width: 100%;
    font-size: 0;
}
.module2 .img{
    display: inline-block;
    width: 50%;
    vertical-align: middle;
    transform: translateY(18%);
}
.module2 .txt{
    display: inline-block;
    width: 50%;
    vertical-align: middle;
    font-size: 14px;
    line-height: 30px;
    box-sizing: border-box;
    padding: 0 13%;
    color: #fff;
}
.module2 .img img{
    display: block;
    width: 100%;
}
.img3{
    display: block;
    max-width: 100%;
    margin: 0 auto;
}
.module3{
    max-width: 1030px;
    box-sizing: border-box;
    padding: 0 20px;
    margin: 0 auto;
}
.module3 .text{
    padding: 12% 13% 0;
    font-size: 14px;
    line-height: 30px;
    text-align: center;
    color: #666;
}
.module3 .img{
    width: 100%;
    margin-top: 10%;
}
.module3 .img img{
    display: block;
    width: 100%;
    height: auto;
}
@media only all and (max-width: 640px) {
    .intro .text{
        width: 100%;
    }
    .dance-wrap .main .intro .img{
        width: 100%;
        padding: 0;
        margin-top: 15px;
    }
    .dance-wrap .main .intro{
        padding: 20px;
        margin-top: 40px;
    }
    .module2{
        padding: 20px;
    }
    .module2 .img{
        width: 100%;
        padding-top: 20px;
        -webkit-transform: none;
        -o-transform: none;
        -ms-transform: none;
        transform: none;
    }
    .module2 .txt{
        width: 100%;
        padding: 0;
        margin-top: 15px;
    }
}