#main{
    min-width: 1200px;
    background: #f4f4f4;
    padding-bottom: 60px;
}
/*********课程简介**************/
.kcjj{
    min-width: 1200px;
    height: 660px;
    margin: 0 auto 40px;
    background: url("../img/product_details/banner_bg.png") no-repeat center;
}
.kcjj .bread{
    width: 1200px;
    padding: 25px 0 17px;
    margin: 0 auto;
}
.kcjj .bread a{
    font-size: 16px;
    color: #ffffff;
}
.kcjj .kc_container{
    width: 1200px;
    padding-right: 23px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    background: #323232;
}
.kcjj .kc_container .kc_video{
    width: 870px;
    height: 510px;
    background: #353535;
}
.kcjj .kc_container .kc_right{
    width: 283px;
    padding-top: 36px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.kcjj .kc_container .kc_right p{
    font-size: 26px;
    color: #fefefe;
    margin-bottom: 35px;
}
.kcjj .kc_container .kc_right span{
    display: block;
    font-size: 14px;
    color: #ffffff;
    margin-bottom: 15px;
}
.kcjj .kc_container .kc_right a{
    display: block;
    width: 283px;
    height: 40px;
    font-size: 20px;
    color: #ffffff;
    text-align: center;
    line-height: 40px;
    border-radius: 20px;
    background: #45ddba;
    margin-bottom: 20px;
}
.kcjj .kcjj_ul{
    width: 1200px;
    padding: 46px 0 0 226px;
    margin: 0 auto;
    display: flex;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.kcjj .kcjj_ul li{
    margin-right: 100px;
}
.kcjj .kcjj_ul li a{
    display: block;
    font-size: 16px;
    color: #ffffff;
    padding-bottom: 17px;
}
.kcjj .kcjj_ul li p{
    width: 57%;
    height: 3px;
    margin: 0 auto;
    background: transparent;
}
.kcjj .kcjj_ul .clicked p{
    background: #45ddba;
}
/*********课程简介 end**************/
/*********课程详情**************/
.details{
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}
/*左*/
.details .details_l>li{
    width: 798px;
    height: 100%;
    background: #ffffff;
    border: 1px solid #e5e5e5;
}
.details .details_l>li .kc_title{
    width: 100%;
    padding: 15px 0 0 30px;
    border-bottom: 1px solid #e5e5e5;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.details .details_l>li .kc_title span:nth-of-type(1){
    display: block;
    font-size: 16px;
    color: #333333;
    padding-bottom: 10px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.details .details_l>li .kc_title span:nth-of-type(2){
    display: block;
    width: 40px;
    height: 3px;
    background: #45ddba;
    margin-left: 12px;
}
/*课程详情*/
.details .details_l>li .kc_txt{
    width: 100%;
    /*padding: 25px 37px 90px;*/
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.details .details_l .kcxq .kc_txt p{
    font-size: 16px;
    color: #333333;
    /*margin: 10px 0;*/
}
.details .details_l .kcxq .kc_txt p img{
    width: 100%;
}
/*课程详情 end*/
/*课程列表*/
.details .details_l .kclb ul li{
    width: 100%;
    padding: 0 43px 0 30px;
    border-bottom: 1px solid #f1f1f1;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.details .details_l .kclb ul li a{
    display: block;
    font-size: 16px;
    color: #333333;
    padding: 20px 0 20px 32px;
    background: url("../img/product_details/icon_video.png") no-repeat left center;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.details .details_l .kclb ul li a span{
    color: #666666;
}
/*课程列表 end*/
/*左 end*/
/*右*/
.details .kc_tj{
    width: 370px;
    height: fit-content;
    border: 1px solid #e5e5e5;
    background: #ffffff;
}
.details .kc_tj .tj_title{
    width: 100%;
    height: 50px;
    font-size: 16px;
    color: #333333;
    line-height: 50px;
    padding-left: 30px;
    border-bottom: 1px solid #e5e5e5;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.details .kc_tj ul li{
    padding: 30px 25px;
    border-bottom: 1px dashed #eeeeee;
}
.details .kc_tj ul li:last-child{
    border: 0;
}
.details .kc_tj ul li a img{
    width: 100%;
}
.details .kc_tj ul li a p{
    font-size: 18px;
    color: #000;
    margin: 12px 0 15px;
}
.details .kc_tj ul li a span{
    font-size: 16px;
    color: #333333;
}
/*右 end*/
/*********课程详情 end**************/