@charset "utf-8";
/* CSS Document */
*{margin:0px;padding:0px; }
div,p,dl,dd,a,b,u,em,input,textarea,button,select,form,section,label,span,td,li,nav,footer,body,ul,i {
    /*font-family: "Microsoft YaHei","微软雅黑",helvetica,arial,verdana,tahoma,sans-serif;*/
    font-family:"Helvetica Neue","Microsoft YaHei",Helvetica,Arial,sans-serif;
    -webkit-box-sizing:border-box;
    -moz-box-sizing:border-box;
    box-sizing:border-box;
    word-wrap:break-word;
    word-break:break-all;
    padding:0;
    margin:0;
    list-style:none;
    -webkit-text-size-adjust:none;
    -webkit-tap-highlight-color:rgba(0,0,0,0);
    -webkit-touch-callout: none;

    -webkit-user-select:none;
    user-select:none;

    outline:0

}
[contenteditable = "true"], input, textarea,select {
    -webkit-user-select: text;
    -khtml-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    -o-user-select: text;
    user-select: text;
    outline:0
}
/*清除iIE的默认选择框样式*/
select::-ms-expand { display: none; }

a:focus,a:active {
    outline:0
}
/*body,td,input,textarea,option,select,button {*/
/*font-size: 1em;*/
/*}*/
html,body{
    padding: 0;
    margin: 0;
}
html{
    width:100%;
    /*overflow: hidden;*/
    /*height:100%*/
}
body {
    /*overflow:hidden;*/
    /*max-width:640px;*/
    /*height: 100%;*/
}

button,input,optgroup,select,textarea {
    color:inherit;
    font:inherit;
    margin:0;
    vertical-align:middle;
    border:none;

}


a,a:visited {
    text-decoration:none;
    color:#000000;/**/
    -webkit-touch-callout:none
}
/*h1,h2,h3,h4,h5,h6 {*/
/*font-weight: 300;*/
/*}*/
hr{
    border: none;
    border-bottom: 1px solid #f0f0f0;
    /*margin-bottom: 10px;*/
}
.indexbody_b {
    padding: 0 0 8rem 0;
}

.text-overflow {
    white-space:nowrap;
    overflow:hidden
}
.text-ellipsis {
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap
}
.text-break {
    word-break:break-all;
    word-wrap:break-word
}
.course{
    width: 100%;
    max-width:640px;
    margin:25px auto;
}
.course .title{
    width: 100%;
    text-align: center;
    font-weight: bold;
    margin:5px 0;
}
.course.green .title{
    color: #21cf6e;
}
.course.blue .title{
    color: #2f8def;
}
.course.orange .title{
    color: #f08d2f;
}
.course .subject{
    width: 100%;
    overflow: hidden;
}
.course .subject ul{
    width: 100%;
    overflow: hidden;
    padding: 0 10px;
}
.course .subject ul li{
    width: 33.33%;
    float: left;
    padding: 0 10px;
    margin: 10px 0;
}
.course .subject ul li .grade{
    display: block;
    width:100%;
    line-height:3.5;
    text-align: center;
    color: #ffffff;
    border-radius:10px;
    cursor: pointer;
}
.course.green .grade{
    background-color: #21cf6e;
}
.course.blue .grade{
    background-color: #2f8def;
}
.course.orange .grade{
    background-color: #f08d2f;
}
.course .subject ul li .grade.gray{
    background-color: #bbbbbb;
}


@media only screen and (min-width:320px){
    .course .title{
        font-size:14px!important
    }
    .course .subject ul li .grade{
        font-size:12px!important
    }
}
@media only screen and (min-width:360px){
    .course .title{
        font-size:16px!important
    }
    .course .subject ul li .grade{
        font-size:14px!important
    }
}
@media only screen and (min-width:480px){
    .course .title{
        font-size:21px!important
    }
    .course .subject ul li .grade{
        font-size:18px!important
    }
}
@media only screen and (min-width:560px){
    .course .title{
        font-size:24px!important
    }
    .course .subject ul li .grade{
        font-size:21px!important
    }
}
@media only screen and (min-width:640px){
    .course .title{
        font-size:28px!important
    }
    .course .subject ul li .grade{
        font-size:24px!important
    }
}



.footer-download-text{
    font-size: .6rem;
    text-align: center;
    padding: 0px 0 15px 0;
    color: #2b97f9;
}
.footer-download-text a{
    color: #2b97f9;
}
.bottom-download{
    position:fixed;
    bottom: 30px;
    left:50%;
    z-index:10;
    overflow: hidden;
    transform: translate(-50%,0);
    color: #fff;
    display: block;
    font-size: .6rem;
    width: 8.6rem;
    text-align: center;
    background-color: #2b97f9;
    padding: 10px 15px;
    box-shadow: 0 0 0.3rem #eee;
    border-radius: 20px;
}
.bottom-download a{
    color: #fff;
}
.banner{
    position: fixed;
    max-width: 640px;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
}
.banner img{
    display: block;
}