@charset "UTF-8";



@font-face {
    font-family: zzgfys;
    src: url("../font/zao.otf");
}
@font-face {
    font-family: sxslk;
    src: url("../font/suxinshi.ttf");
}
@font-face {
    font-family: xd;
    src: url("../font/xindi.ttf");
}


.course{
    background-color: black;
}

.course .nav{
    background-color: #a22626;
}
.course .nav ul{
    width: 1320px;
}
.course .nav ul li {
    height: 80px;
    padding-right:30px ;
    line-height: 80px;
    font-family: 方正准圆简体;
    font-size: 23px;
}
.course .nav ul li:nth-child(1){
    padding-left: 30px;
}
.course .nav ul li.on{
    background-color: black;
    color: #a22626;
}
.course .nav ul li i.on{
    background-color: black;
    background-image:none;
}
.course .nav ul li i{
    display: none;
    width: 4px;
    height: 39px;
    margin-right: 30px;
    background:url("../img/i1.jpg") no-repeat center/100%;
    vertical-align: middle;
}
.course .nav ul li + li i{
    display: inline-block;
}
.course .probably{
    width: 1320px;
}
.course .probably h3{

    padding-top: 49px;
    padding-bottom: 17px;
    border-bottom: 1px solid #6c6c6c;

    text-align: center;
    font-family: 黑体, Regular;
    font-size: 37px;
}
.course .probably h3 i{

    top: 36%;
    left: 8%;
    width: 12px;
    height: 15px;
    background: url("../img/click.png") no-repeat center/100%;
}
.course .probably h3 a{
    padding: 7px 36px;
    background-color: #b11c1c;
    color: white;
}
.course .probably > ul > li{
    padding: 70px 48px;
    font-family: 方正准圆简体;
    font-size: 30px;
    color: #b0b0b0;
}
.course .probably > ul > li img{
    width: 100% !important;
    height: auto;
    display: block;
}


.course .probably > ul > li > ul li{
    margin-bottom: 20px;
}
.course .probably > ul > li ul li:nth-child(1){
    margin-bottom: 100px;
}
.course .probably > ul > li .left{
    width: 16%;
    text-align: right;
}
.course .probably > ul > li span{
    display: inline-block;

    font-size: 37px;

}
.course .probably > ul > li .right{
    width: 83%;
}
.course .probably > ul > li p{

}


.course .problem img{
    display: block;
    width: 100%;
}
.course .problem{
    box-shadow:0px 10px 10px -10px;;
}
.course .problem nav{
    height: 50px;
}
.course .problem nav ul{
    width: 480px;
}
.course .problem nav ul li{
    padding-right: 20px;
    background-color: #3f3f3f;
    color: white;
    font-size: 18px;
    line-height: 50px;

}
.course .problem nav ul li:nth-child(1){
    padding-left: 20px;
}
.course .problem nav ul li.on{
    background-color: #a22626;
}
.course .problem nav ul li i.on{
    background-image: url("../img/i1.jpg");
}
.course .problem nav ul li i{
    display: none;
    width: 4px;
    height: 39px;
    margin-right: 20px;
    background:url("../img/i.jpg") no-repeat center/100%;
    vertical-align: middle;
}
.course .problem nav ul li + li i{
    display: inline-block;
}
.course .problem .content > ul > li:nth-child(3){
    width: 100%;
    height: 680px;
    padding-top: 40px;
    background:#f0f0f0 url("../img/bg1.jpg") no-repeat center/88%;
}
.course .problem .content > ul > li:nth-child(3) h2{
    width: 30%;
    margin-bottom: 30px;
    border-bottom: 1px solid #8f8f8f;
    color: #8f8f8f;
    font-size: 38px;
    font-family:zzgfys ;

}
.course .problem .content > ul > li:nth-child(3) ul{
    width: 30%;
}
.course .problem .content > ul > li:nth-child(3) ul li {
    margin-bottom: 20px;
    font-family: sxslk;
    font-size: 20px;
    white-space: nowrap;
    line-height: 30px;
    letter-spacing: -2px;
}
.course .problem .content > ul > li:nth-child(3) ul li h3{
    font-family: xd;
    font-size: 20px;
    color: #a22626;
}
.course .problem .content > ul > li:nth-child(3) ul li span{
    color: #a22626;
}
.course .problem .content > ul > li:nth-child(3) ul li h3 span{
    display: inline-block;
    font-family: 方正准圆简体,Regular ;
    color: #3f3f3f;
}

/*.course .problem .content > ul > li:nth-child(2){
    width: 100%;
    padding-top: 50px;
    padding-bottom: 60px;
    background-color: #f0f0f0;
}

.course .problem .content > ul > li:nth-child(2) h2{
    margin-bottom: 36px;
    font-size: 58px;
    color: #9b9b9b;
    font-family: zzgfys;
    text-align: center;
}
.course .problem .content > ul > li:nth-child(2) h2 a{
    display:inline-block;
    padding: 12px 34px;
    background-color: #646464;
    color: #fff;
    font-size: 26px;
    vertical-align: bottom;
}
.course .problem .content > ul > li:nth-child(2) ul{
    width: 65%;
}
.course .problem .content > ul > li:nth-child(2) ul li{
    width: 31%;
   !* height: 643px;*!
    margin-left: 1.5%;
    border: 3px solid #a8a8a8 ;
    background-color: #d6d6d6;
}
.course .problem .content > ul > li:nth-child(2) ul li img{
    width: 100%;
    height: auto;
}
.course .problem .content > ul > li:nth-child(2) ul li:hover{
    border-color:#a22626 ;
}*/
.course .problem .content > ul > li:nth-child(1){
    background-color: #d6d6d6;
}
.course .problem .content > ul > li:nth-child(1) a{
    display:none;
    width: 210px;
    margin:20px auto;
    padding: 12px 34px;
    background-color: #646464;
    color: #fff;
    font-size: 26px;
    font-family: zzgfys;
}
.course .problem .content > ul > li:nth-child(4){
    padding-top: 50px;
    padding-bottom: 50px;
    background-color: #f0f0f0;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap{
    width: 36%;
    height: 600px;
    padding: 10px;
    overflow:hidden;
    position: relative;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap ul{
    position: absolute;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap ul li {
    margin-bottom: 37px;
    font-family: sxslk;
    font-size: 20px;
    white-space: nowrap;
    line-height: 30px;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap ul li h3{
    font-family: xd;
    font-size: 20px;
    color: #a22626;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap ul li span{
    color: #a22626;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap ul li h3 span{
    display: inline-block;
    font-family: 方正准圆简体,Regular ;
    color: #3f3f3f;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap .scrollbar{
    display: none;
    position: absolute;
    right:0;
    top:0;
    width:20px;
    height:100%;
    background-color: #ccc;
    box-shadow:0 0 6px 0 #666 inset;
    border:1px solid #888;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap .scrollbar.hide{
    display: none;
}
.course .problem .content > ul > li:nth-child(4) .c-wrap .scrollbar i{
    position: absolute;
    width:100%;
    height:30px;
    background: #eee;
}

.swiper-container1,
.swiper-container2{
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    list-style: none;
    padding: 0;
    z-index: 1;
}

.view{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,.34);
    z-index: 1;
}
.view .img{
    top: 50%;
    left: 50%;
    width: 60%;
    border: 7px solid white;
    border-radius: 10px;
    transform: translate(-50%, -50%);
    -ms-transform:translate(-50%, -50%);
    -moz-transform:translate(-50%, -50%);
    -webkit-transform:translate(-50%, -50%);
    -o-transform:translate(-50%, -50%);
}
.view .img img{
    width: 100%;
    display: block;
}
.view .img i{
    top: -20px;
    right: -20px;
    width: 35px;
    height: 35px;
    background: url("../img/close.png") no-repeat center/100%;
}