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

.main>h3,
.main>.hot_tit {
    font-size: 26px;
    color: #333333;
}


/*main_top*/

.main_top {
    overflow: hidden;
}

.main_top>a {
    float: left;
    margin-right: 50px;
}

.main_top>h3,
.main_top>h1 {
    font-size: 28px;
    color: #333333;
}

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

.main_top>a.ljzx {
    display: inline-block;
    width: 170px;
    height: 55px;
    background: #000000;
    color: #ffffff;
    text-align: center;
    line-height: 55px;
    font-size: 14px;
    margin-top: 70px;
}


/*about_course*/

.about_course>ul {
    border-bottom: 1px solid #d8d8d8;
}

.about_course>ul li {
    line-height: 50px;
    height: 50px;
    float: left;
    margin-right: 60px;
    margin-bottom: -1px;
    border-bottom: 3px solid transparent;
}

.about_course>ul li:hover,
.about_course ul li.active {
    cursor: pointer;
    border-bottom: 3px solid #000000;
}

.about_course_box {}

.about_course_one {
    margin-top: 50px;
    position: relative;
}

.dianti {
    right: 0;
    top: 0;
    position: absolute;
    background: url("../img/six_yuan.png") no-repeat left 18px;
}

.dianti li {
    height: 53px;
    line-height: 53px;
    width: 220px;
}

.dianti li a {
    display: inline-block;
    padding-left: 32px;
    color: #333;
    position: relative;
}

.dianti li a img {
    display: none;
    position: absolute;
    left: -8px;
    top: 10px;
}


/*.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 h3 {
    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");
}

.about_course_two p {
    padding: 15px 0 15px 10px;
    line-height: 25px;
    height: 25px;
    border-bottom: 1px solid #d8d8d8;
}

.about_course_two p i {
    display: inline-block;
    width: 25px;
    height: 25px;
    -webkit-border-radius: 25px;
    -moz-border-radius: 25px;
    border-radius: 25px;
    background: #2e333f;
    color: #ffffff;
    text-align: center;
    line-height: 25px;
    margin-right: 10px;
}

.about_course_two p span {
    color: #333333;
    margin-left: 50px;
}