.main {
    background: #ffffff;
    padding: 50px;
    margin-top: 15px;
}

.main>h1,
.main>.cont_tit {
    font-size: 26px;
    color: #333333;
}

.one_one>h3>span {
    margin-top: 10px;
    float: right;
    font-size: 14px;
    padding: 0 25px 0 35px;
    background: url("../img/three_dot.png") no-repeat left center;
}

.one_box {
    margin-top: 50px;
    padding-top: 50px;
    border-top: 1px solid #d8d8d8;
    font-size: 14px;
    line-height: 30px;
    color: #666666;
}


/*.about_course*/

.about_course h3,
.about_course .cont_tit {
    font-size: 28px;
    color: #333333;
}

.about_course>ul {
    margin-top: 50px;
}

.about_course>ul li {
    overflow: hidden;
    margin-bottom: 30px;
}

.about_course>ul li>a {
    float: left;
    margin-right: 30px;
}

.about_course>ul li>h4 {
    margin-top: 15px;
    margin-bottom: 40px;
}

.about_course>ul li>h4 a {
    font-size: 20px;
    font-weight: bold;
    color: #333333;
}

.about_course>ul li>p {
    font-size: 14px;
}


/*.hot_course*/

.hot_course>ul {
    margin-top: 40px;
    overflow: hidden;
}

.hot_course>ul>li {
    width: 260px;
    height: 290px;
    float: left;
    margin-right: 20px;
    margin-bottom: 20px;
}

.hot_course>ul>li:nth-child(4n) {
    margin-right: 0;
}

.hot_course>ul>li>a>img {
    width: 260px;
}

.hot_course_bottom {
    position: relative;
    height: 105px;
    width: 100%;
    border: 1px solid #d8d8d8;
    padding: 25px;
}

.hot_course_bottom h4,
.hot_course_bottom h2 {
    font-size: 20px;
    color: #333333;
}

.lj_more {
    position: absolute;
    bottom: 0;
    width: 210px;
}

.lj_more {
    border-top: 1px solid #d8d8d8;
    height: 40px;
    line-height: 40px;
    overflow: hidden;
    font-family: futuraef_demiboldregular;
}

.lj_more a {
    float: right;
    height: 100%;
    width: 25px;
    background: url("../img/right_jiantou1.png") no-repeat center center;
}

.lj_more a:hover {
    background-image: url("../img/right_jiantou2.png");
}