body{
    background-color: #ecedef;
}

.banner{
    width: 100%;
}
.banner img{
    width: 100%;
}

.subject_list{
    width: 1200px;
    height: 67px;
    margin: 0 auto;
    margin-top: 59px;
    margin-bottom: 42px;
}
.subject_list ul li{
    float: left;
    width: 184px;
    height: 65px;
    line-height: 65px;
    text-align: center;
    margin-right: 17px;
}
.subject_list ul li:last-child{
    margin-right: 0;
}
.subject_list ul li a{
    display: inline-block;
    width: 100%;
    color: #333;
    border: 1px #099aff solid;
    background-color: #92cfff;
    border-radius: 10px;
}
.subject_list ul li a:active,.subject_list ul li a:focus{
    color: #fff;
    background-color: #095dff;
}

.sub_intro{
    width: 1138px;
    padding:0 30px 38px 30px;
    border: 1px #dcdddd solid;
    margin: 0 auto;
    margin-bottom: 53px;
    background-color: #fff;
    color: #62605f;
    min-height: calc(100vh - 510px);
}
.sub_intro h4{
    width: 100%;
    height: 27px;
    font-size: 20px;
    line-height: 27px;
    margin-bottom: 15px;
    margin-top: 32px;
}
.sub_intro h4 img{
    position: relative;
    top: 6px;
    margin-right: 8px;
}
.sub_intro p{
    line-height: 25px;
}

.choice_subject{
    width: 772px;
    margin: 0 auto;
    margin-bottom: 40px;
}
.choice_subject ul li{
    float: left;
    height: 24px;
    line-height: 24px;
    margin-right: 58px;
}
.choice_subject ul li:last-child{
    margin-right: 0;
}
.choice_subject ul li img{
    position: relative;
    top: 6px;
    margin-right: 5px;
}

.enroll{
    width: 317px;
    height: 65px;
    text-align: center;
    line-height: 65px;
    color: #fff;
    margin: 0 auto;
    font-size: 18px;
    font-weight: bold;
    border-radius: 10px;

    margin-bottom: 50px;
    background-color: #095dff;
    border: 1px #099aff solid;
}
.enroll a{
    color: #fff;
}

.empty_box{
    width: 100%;
    height: 40px;
    border-top: 1px #dcdddd solid;
    background-color: #ecedef;
}
.footer{
    height: 84px;
    line-height: 84px;
}