body{background: #F6F7F9;}
.clearfix:after{
    content: ".";
    display: block;
    height: 0;
    line-height: 0;
    visibility: hidden;
    clear:both;
}
/*兼容ie浏览器*/
.clearfix{
    zoom:1;
}
.js-pub-title{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 1200px;
    margin: 45px auto;
    overflow: hidden;
}
.js-pub-title h2{
    font-size: 24px;
    font-weight: bold;
    color: #252525;
    line-height: 35px;
    text-align: left;
    float: left;
}
.js-pub-title a{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: inline-block;
    height: 35px;
    background: #EDEDEE;
    border-radius: 18px;
    text-align: center;
    padding: 0 15px;
    font-size: 14px;
    font-weight: 400;
    color: #6B7484;
    line-height: 35px;
    float: right;
}
.js-pub-title a i{
    font-style: normal;
    color: #D84442;
    display: inline-block;
    margin-right: 3px;
}
.js-pub-title a:hover{
    color: #D84442;
}
/*banner*/
.js-banner-box{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 100%;
    min-width: 1200px;
    position: relative;
}
.js-banner .js-banner-item{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    min-width: 1200px;
    height: 450px;
    display: block;
    text-align: center;
}
.js-banner .js-banner-item1{
    background: url("../image/banner1.jpg") no-repeat center;
}
.js-banner .js-banner-item2{
    background: url("../image/banner2.jpg") no-repeat center;
}
.js-banner .js-banner-item3{
    background: url("../image/banner3.jpg") no-repeat center;
}
.js-banner .swiper-pagination-bullets{bottom: 30px;}
.js-banner .swiper-pagination-bullet{
    width: 10px;
    height: 10px;
    background: #FFFFFF;
    opacity: 0.29;
    border-radius: 50%;
}
.js-banner .swiper-pagination-bullet-active{
    opacity: 1;
    background: #FFFFFF;
}
/*1 说明*/
.js-introduce{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    min-width: 1200px;
    background: #ffffff;
    overflow: hidden;
}
.js-introduce .js-introduce-nav{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 100%;
    height: 80px;
    background: #FFFFFF;
    box-shadow: 1px 7px 12px 0px rgba(8,40,78,0.0600);
}
.js-introduce .js-introduce-nav .js-introduce-nav-a{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 1200px;
    height: 100%;
    display: -webkit-flex;
    display: -moz-flex;
    display: -o-flex;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto;
    overflow: hidden;
}
.js-introduce .js-introduce-nav .js-introduce-nav-a a{
    display: -webkit-flex;
    display: -moz-flex;
    display: -o-flex;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 200px;
    height: 80px;
    background: #ffffff;
    color: #000000;
    font-size: 16px;
}
.js-introduce .js-introduce-nav .js-introduce-nav-a a img{
    display: inline-block;
    margin-right: 10px;
}
.js-introduce .js-introduce-nav .js-introduce-nav-a a:hover{
    background: #F1F5FF;
    color: #E71619 ;
}
.js-introduce .js-introduce-txt{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 1200px;
    height: 230px;
    background: #FFFFFF;
    box-shadow: 0px 9px 62px 0px rgba(109,141,186,0.2500);
    border-radius: 20px;
    margin: 40px auto 70px;
    padding: 20px 30px;
    display: -webkit-flex;
    display: -moz-flex;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.js-introduce .js-introduce-txt .introduce-txt-img{
    display: inline-block;
    width: 220px;
    height: 188px;
}
.js-introduce .js-introduce-txt .introduce-txt-font{
    width: 890px;
    height: 188px;
    overflow: hidden;
}
.js-introduce .js-introduce-txt .introduce-txt-font h1{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    position: relative;
    font-size: 20px;
    font-weight: bold;
    color: #252B3A;
    line-height: 20px;
    padding-bottom: 7px;
    padding-left: 10px;
    padding-right: 10px;
    display: inline-block;
    margin-top: 5px;
    z-index: 1;
}
.js-introduce .js-introduce-txt .introduce-txt-font h1:after{
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 18px;
    background: #C7FFFF;
    border-radius: 9px;
    z-index: -1;
}
.js-introduce .js-introduce-txt .introduce-txt-font .introduce-txt-font-p{
    display: block;
    width: 100%;
    height: 130px;
    font-size: 15px;
    font-weight: 400;
    color: #252B3A;
    line-height: 30px;
    text-align: left;
    margin-top: 20px;
    overflow-y: auto;
}
.js-introduce .js-introduce-txt .introduce-txt-font .introduce-txt-font-p p:first-child{
    margin-bottom: 10px;
}

.js-introduce .js-introduce-txt .introduce-txt-font .introduce-txt-font-p span{
    color: #FF5A22;
}
/*2免费教程*/
.js-course{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    min-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}
.js-course .js-course-box{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 1200px;
    margin: 0 auto 30px;
}
.js-course .js-course-box .js-course-list{
    display: block;
    width: 223px;
    height: 243px;
    background: #FFFFFF;
    border-radius: 10px;
    float: left;
    margin-right: 20px;
    margin-bottom: 25px;
}
.js-course .js-course-box .js-course-list:nth-child(5n){
    margin-right: 0;
}
.js-course .js-course-box .js-course-list:hover{
    box-shadow: 0px 3px 8px 0px #E0E1E5;
}
.js-course .js-course-box .js-course-list img{
    display: inline-block;
    width: 223px;
    height: 140px;
    border-top-right-radius: 10px;
    border-top-left-radius: 10px;
}
.js-course .js-course-box .js-course-list .js-course-txt{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    padding:5px 10px;
}
.js-course .js-course-box .js-course-list .js-course-txt h3{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 100%;
    font-size: 15px;
    font-weight: 400;
    color: #515151;
    line-height: 26px;
    overflow: hidden;
    text-overflow: ellipsis;
    word-wrap: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    word-break: break-all;
}
.js-course .js-course-box .js-course-list .js-course-txt .js-course-txt-p{
    font-size: 14px;
    font-weight: 400;
    color: #929292;
    line-height: 26px;
}
.js-course .js-course-box .js-course-list .js-course-txt .js-course-txt-p .js-course-txt-span{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: inline-block;
    background: url("../image/2-ren.png") no-repeat left center;
    padding-left: 20px;
}
/*3学习工具*/
.js-tool{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    min-width: 1200px;
    background: #ffffff;
    overflow: hidden;
}
.js-tool .js-tool-box{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 1200px;
    margin: 0 auto 30px;
}
.js-tool .js-tool-box .js-tool-list{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 580px;
    height: 146px;
    background: #FFFFFF;
    border: 1px solid #EFEFEF;
    border-radius: 10px;
    margin-right: 40px;
    margin-bottom: 20px;
    overflow: hidden;
    padding: 10px 20px;
    float: left;
}
.js-tool .js-tool-box .js-tool-list:nth-child(2n){
    margin-right: 0;
}
.js-tool .js-tool-box .js-tool-list:hover{
    box-shadow: 0px 4px 10px 0px rgba(221,221,221,0.5200);
}
.js-tool .js-tool-box .js-tool-list h3{
    width: 100%;
    font-size: 16px;
    font-weight: 400;
    color: #242424;
    line-height: 24px;
    overflow: hidden;
    text-align: left;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 10px;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 100%;
    overflow: hidden;
    display: -webkit-flex;
    display: -moz-flex;
    display: -o-flex;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res img{
    display: block;
    width: 72px;
    height: 72px;
    border-radius: 10px;
    margin-right: 20px;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res .js-tool-list-txt{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 450px;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res .js-tool-list-txt p{
    font-size: 14px;
    font-weight: 400;
    color: #989898;
    line-height: 18px;
    text-align: left;
    margin-bottom: 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    word-wrap: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    word-break: break-all;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res .js-tool-list-txt div{
    width: 100%;
    overflow: hidden;
    font-size: 13px;
    font-weight: 400;
    color: #333333;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res .js-tool-list-txt div span{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: inline-block;
    line-height: 23px;
    font-weight: 400;
    color: #929292;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res .js-tool-list-txt .js-tool-list-span1{
    border: 1px solid #A3A3A4;
    border-radius: 25px;
    padding: 0 10px;
    text-align: center;
    margin-right: 20px;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res .js-tool-list-txt .js-tool-list-span2{
    padding-left: 20px;
    background: url("../image/3-load.png") no-repeat left center;
    text-align: left;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res .js-tool-list-txt a{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: inline-block;
    border: 1px solid #FE7503;
    border-radius: 25px;
    color: #FE7503;
    font-size: 13px;
    font-weight: 400;
    text-align: center;
    width: 75px;
    height: 25px;
    line-height: 25px;
}
.js-tool .js-tool-box .js-tool-list .js-tool-list-res .js-tool-list-txt a:hover{
    background: #FE7503;
    color: #ffffff;
}
/*4推荐*/
.js-recommend{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    min-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}
.js-recommend .js-recommend-list{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 1200px;
    margin: 0 auto;
    display: -webkit-flex;
    display: -moz-flex;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.js-recommend .js-recommend-list a{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: block;
/*    width: 260px;
    height: 98px;*/
    border-radius: 10px;
    position: relative;
    z-index: 1;
}
.js-recommend .js-recommend-list a img{
/*    width: 260px;
    height: 98px;*/
    border-radius: 10px;
}
.js-recommend .js-recommend-list a p{
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
    opacity: 0.3;
}
.js-recommend .js-recommend-list a:hover{
    transform: translateY(-10px);
    transition: 0.1s;
}
.js-recommend .js-recommend-list a:hover p{
    transform: translateY(6px);
    transition: 0.1s;
}
.js-recommend .js-article-list{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    width: 1200px;
    margin: 0 auto 60px;
    height: 395px;
    overflow: hidden;
}
.js-recommend .js-article-list li{
    width: 530px;
    float: left;
    margin-right: 135px;
    font-size: 16px;
    font-weight: 400;
    color: #252B3A;
    line-height: 24px;
    margin-bottom: 17px;
    display: -webkit-flex;
    display: -moz-flex;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.js-recommend .js-article-list li:nth-child(2n){margin-right: 0;}
.js-recommend .js-article-list li a{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: inline-block;
    width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: left;
    position: relative;
    padding-left: 10px;
}
.js-recommend .js-article-list li a:before{
    content: "·";
    position: absolute;
    left: 0;
    top: 0;
    line-height: 24px;
}
.js-recommend .js-article-list li:hover{
    color: #FF5A22;
}
.js-recommend .js-article-list li:hover a{
    color: #FF5A22;
}
.js-recommend .js-article-list li:hover a:before{
    color: #FF5A22;
}