/* banner */
.banner {
    height: 268px;
    min-width: 1260px;
    margin-top: -78px;
    padding-top: 1px;
    background-repeat: no-repeat;
    background-position: center center;
}
.banner-title {
    width: 1260px;
    margin: auto;
    text-align: center;
    margin-top: 100px;
}
.p1 {
    font-size: 36px;
    color: #eee;
    font-weight: 400;
}
.layui-field-title {
    width: 440px;
    margin: 0px auto;
    font-size: 44px;
    color: #eee;
    margin-top: 49px;
}
.layui-elem-field legend {
    font-size: 50px;
    padding: 0 34px;
}
/*  课程文章 */
.course {
    width: 1200px;
    margin: auto;
    display: flex;
}
.course h3 {
    color: #00607f;
    font-size: 24px;
    margin-top: 40px;
}
.course-p {
    width: 830px;
    border-top: 1px solid #00607f;
    margin: 18px 0 40px 0;
}
.course-p2 {
    width: 340px;
    border-top: 1px solid #00607f;
    margin: 18px 0 40px 0;
}
.course-center {
    width: 830px;
    height: 258px;
    background: #f6f6f6;
    border-radius: 10px;
    margin-bottom: 24px;
}

.course-center>div{
    display: flex;
    justify-content: space-between;
}

.course-center .img{
    width: 220px;
    height: 140px;
    background-position: center center;
    background-size: 100%;
    background-repeat: no-repeat;
    margin-right: 20px;;
    display: inline-block;
    flex-shrink: 0;
}


.course-center-title a {
    color: #333333;
    font-size: 24px;
}

.course-center-title a:hover{
    color: #0866df;
}

.course-center-title span strong {
    color: #999999;
    font-size: 14px;
    font-weight: 400;
}
.course-center-title p {
    color: #666666;
    font-size: 14px;
    line-height: 24px;
    margin: 24px 0;
    text-overflow: -o-ellipsis-lastline;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;

}
.course-center-title .readMore {
    color: #00607f;
    font-size: 14px;
}
.course-center-title a span {
    color: #00607f;
    font-size: 14px;
    opacity: 0;
}
.course-center-title a:hover span {
    opacity: 1;
}
.erweima {
    width: 50%;
    text-align: center;
}

.erweima img{
    width: 100px;
}

.erweima p {
    color: #666666;
    font-size: 12px;
    padding-top: 10px;
}

/* 系列文章 */

h4{
    color: #00607f;
    font-size: 18px;
    margin: 40px 0 30px;
    border-bottom: 1px solid #00607f;
    padding-bottom: 18px;
}

.series-article {
    margin-top: 30px;
    width: 340px;
}

.series-article .article-type{
    font-size: 16px;
    font-weight: bold;
    background-color: #eee;
    color: #00607F;
    line-height: 30px;
    padding-left: 20px;
    position: relative;
}

.series-article .article-type::before{
    content: '';
    display: inline-block;
    width: 4px;
    height: 30px;
    background: #00607F;
    position: absolute;
    left: 0;
    top: 0;
}

.series-article .article-list li{
    height: 52px;
}

.series-article .article-list a{
    color: #333;
    font-size: 16px;
    line-height: 50px;
    display: inline-block;
    border-bottom: 1px solid #EEEEEE;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.series-article .article-list a:hover{
    color: #0866df;
}

.series-article .article-list a span{
    vertical-align: middle;
}

.series-article .article-list a i{
    color: #CCCCCC;
    font-size: 12px;
    vertical-align: middle;
    margin-right: 10px;
}


#btn {
    height: 50px;
    /* width: 630px; */
    overflow: hidden;
    margin-top: 26px;
    text-align: center;
}

#btn ul li {
    float: left;
    margin: 0 5px;
    list-style-type: none;
}

#btn ul a {
    display: block;
    background: #ffb15e;
    color: #fff;
    height: 50px;
    width: 200px;
    font: lighter 2em/50px "Helvetica Neue", Arial, Helvetica, Geneva, sans-serif;
    text-decoration: none;
    border-radius: 10px;
    -webkit-transition: margin 0.3s ease-in-out;
    -moz-transition: margin 0.3s ease-in-out;
    -o-transition: margin 0.3s ease-in-out;
    -ms-transition: margin 0.3s ease-in-out;
    transition: margin 0.3s ease-in-out;
}

#btn ul a:nth-of-type(even) {
    background: #ffffff;
    color: #ffb15e;
    box-sizing: border-box;
    border: 1px solid #ffb15e;
}

#btn ul li:hover :first-child {
    margin-top: -50px;
}

.registerGift-box{
    margin-bottom: 20px;
    display: block;
}