* {
    margin: 0;
    padding: 0;
    /*注意这个box-sizing是个特殊的盒子模型，如果有样式出错可优先考虑这个*/
    box-sizing: border-box;
    -webkit-tap-highlight-color:transparent;
    font-family: Helvetica, Arial, sans-serif;
}
ul {
    list-style: none;
}
a {
    text-decoration: none;
    display: block;
    color: inherit;
    -webkit-tap-highlight-color: transparent;
}
img {
    display: block;
    width: 100%;
}
input {
    border: none;
    outline: none;
}
.clearfix:after {
    content: '';
    display: block;
    height: 0;
    line-height: 0;
    visibility: hidden;
    clear: both;
}
html,
body,
.view {
    height: 100%;
}
.view {
    padding-top: .46rem;
    position: relative;
}
.container {
    height: 100%;
    position: relative;
    padding-left: .9rem;
}
.left_box {
    position: absolute;
    width: .9rem;
    height: 100%;
    left: 0;
    overflow-y: scroll;
    background-color: #efefef;
}
.left_box ul{
    /*height: 100%;*/
    /*background-color: #efefef;*/
}
.left_box ul li {
    height: .43rem;
    text-align: center;
    line-height: .43rem;
    font-size: .14rem;
    color: #606060;
    background-color: #efefef;
    margin-bottom: .05rem;
}
.left_box ul .active {
    color: #ff9000;
    border-right: none;
    background-color: #ffffff !important;
}
.right_box {
    height: 100%;
    overflow-y: scroll;
    touch-action: auto !important;
}
.right_box p{
    font-size: .16rem;
    font-weight: 900;
    margin: .25rem .15rem 0;
}
.right_box ul{
    margin-left: .05rem;
    margin-top: .22rem;
}
.right_box ul li {
    float: left;
    /*width: 50%;*/
    margin-left: .2rem;
}
.right_box ul li a{
    min-width: .84rem;
    padding: 0 .13rem;
    height: .3rem;
    border: 1px solid #e6e6e6;
    border-radius: 5px;
    text-align: center;
    line-height: .3rem;
    margin: 0 auto .16rem;
    font-size: .14rem;
    color: #2e2e2e;
}
.right_box_main{
    display: none;
}
.show_right{
    display: block;
}

body{
    padding-top: .91rem;
    background: #fff;
}
ul,li {
    list-style: none;
}
a {
    text-decoration: none;
    display: block;
    color: inherit;
    -webkit-tap-highlight-color: transparent;
}
img {
    display: block;
    width: 100%;
}
input {
    border: none;
    outline: none;
}
.clearfix:after {
    content: '';
    display: block;
    height: 0;
    line-height: 0;
    visibility: hidden;
    clear: both;
}
header{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
}
/*分类导航样式*/
nav{
    position: fixed;
    width: 100%;
    z-index: 10;
    background-color: #fff;
    top: .52rem;
}
nav .course_all{
    float: left;
    width: 25%;
    height: .39rem;
    line-height: .39rem;
    text-align: center;
    border-bottom: 1px solid #e6e6e6;
}
nav .box_active{
    font-weight: 500;
}
nav p{
    font-size: .12rem;
    color: #606060;
}
nav .course_tit_2{
    width: .8rem;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    text-align: center;
    margin: 0 auto;
}
nav .list_none li{
    font-size: .14rem;
    color: #2E2E2E;
    padding-left: .22rem;
    background-color: #fff;
    /* margin-bottom: .05rem; */
}
nav ul .active{
    color: #ff9000;
    background-color: #efefef;
}
nav .course_all .list_none{
    width: 100% !important;
    text-align: left;
    font-weight: 500;
    position: fixed;
    left: 0;
    display: none;
    background-color: rgba(0,0,0,.4);
    z-index: 1;
    height: 100%;
    border-top: 1px solid #e6e6e6;
    margin-top: -1px;
}
nav .c1 li{
    margin-bottom: 0;
}
nav .c1 li:last-child{
    border-bottom: .1rem solid #ffffff;
}
nav .c3 li{
    margin-bottom: 0;
}
nav .c3 li:last-child{
    border-bottom: .1rem solid #ffffff;
}
/*中间那个特殊的全部教程筛选框*/
.container .left_box{
    width: .9rem;
    max-height: 3.3rem;
    overflow: hidden;
    overflow-y: scroll;
}
.container .left_box li{
    text-align: center;
    padding-left: 0;
    background-color: #efefef;
}
.container .right_box{
    max-height: 3.3rem;
    overflow: hidden;
    overflow-y: scroll;
    background-color: #fff;
}
.container .right_box ul{
    /* max-height: 3.28rem;
    overflow: hidden;
    overflow-y: scroll; */
}
.container .right_box ul li{
    padding-left: 0;
}

.course_none{
    display: none !important;
}
.course_block{
    display: block !important;
}
.course_none_1{
    display: none !important;
}

/*主要内容样式*/
#contentWrapper{
    width: 100%;
    padding: 0 0.1389rem;
    box-sizing: border-box;
}
main .jc{
    /*height: 1.84rem;*/
    /*padding: .15rem 0rem 0rem .135rem;*/
    width: 50%;
    padding: 0.15rem 0.0675rem 0 0;
    box-sizing: border-box;
    float: left;
}
main .jc:nth-of-type(2n){
    padding-right: 0;
    padding-left: 0.0675rem;
}
main .jc_href {
    /*width: 1.68rem;*/
    /* border: 1px solid #dadada; */
    width: 100%;
    height: 100%;
    position: relative;
    border-radius: 2px;
    overflow: hidden;
}
main .jc img {
    /*width: 1.68rem;*/
    /*height: 1.16rem;*/
    width: 100%;
    height: 1.18rem;
    margin-bottom: 0;
    border-radius: 8px;
}
main .jc p{
    font-size: .14rem;
    font-weight: normal;
    display: inline-block;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    padding: .1rem 0;
    position: absolute;
    color: #2e2e2e;
}
main .jc .course-tag{
    display: inline-flex;
    align-items: center;
    font-style: normal;
    font-size: 0.12rem;
    height: 0.16rem;
    margin-right: 0.05rem;
    border-radius: 0.025rem;
    box-sizing: content-box;
    color: #fff;
    position: relative;
    top: -0.01rem;
    padding: 0 0.04rem;
    line-height: normal;
}
main .jc .course-tag.tag-vip{
    background-color: #cea260;
}
main .jc .course-tag.tag-master{
    background-color: #da5e4b;
}
main .jc .course-tag.tag-camp{
    background-color: #f90;
}
main .jc span{
    font-size: .14rem;
    color: #ff9000;
    position: absolute;
    bottom: .06rem;
    left: 0;
}
/*图标*/
.down_icon{
    width: .1rem;
    height: .05rem;
    position: absolute;
    top: 50%;
    transform: translate(0,-50%);
    margin-left: .8rem;
}

.right_box ul li a{
    /*padding-top: 1px;*/
}
.right_box ul{
    margin-top: .1rem;
}
.right_box ul li a{
    margin-bottom: .1rem;
}
.right_box p{
    margin-top: .1rem;
}
.i-vip {
    width: 32px;
    height: 16px;
    position: absolute;
    top: -1px;
    right: 0;
    background: url(http://www.yiihuu.com/assets/yihuvip/new/img/vip.png) no-repeat center;
    z-index: 1;
    background-size: contain;
    border-radius: 0 8px 0 0;
}
nav .c4 li:last-child{
    border-bottom: .1rem solid #ffffff;
}