/* 顶部 */
.top {
	background-color: #fff;
	box-shadow: 0 1px 5px #888;
}




/* abtBanner */
.abtBanner {
    position: relative;
    width: 100%;
    height: auto;
}
.abtBanner .imgbox {
    height: 100%;
    overflow: hidden;
}
.abtBanner img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.abtBanner .layer {
    position: absolute;
    left: 0;
    top: 39%;
    width: 100%;
    text-align: center;
}
.abtBanner .layer  .title {
    color: #fff;
    font-size: 36px;
    font-weight: bold;
    line-height: 6.6667vw;
}
.abtBanner .layer  .subtit {
    height: 3.9583vw;
    color: #fff;
    font-size: 22px;
}
.abtBanner .layer  .subtit::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 2.3958vw;
    height: 0.2083vw;
    background-color: #0075cf;
    margin-left: -1.1979vw;
}
.abtBanner .choose {
    position: absolute;
    left: 50%;
    bottom: 0;
    margin-left: -700px;
    width: 1400px;
    height: 70px;
    background-color: #fff;
}
.abtBanner .choose::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 0.1563vw;
    background-color: #efefef;
}
.choose .lisbox {
    padding-left: 2.6042vw;
}
.choose li {
    float: left;
    position: relative;
    margin-right: 2.1875vw;
}
.choose li a {
    display: block;
    color: #525252;
    font-size: 16px;
    line-height: 70px;
    font-weight: bold;
}
.choose li em {
    display: none;
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: 2;
    width: 100%;
    height: 0.1563vw;
    background-color: #0075cf;
}
.choose ul li:nth-child(4) em {
    display: block;
}
.choose li:hover em {
    display: block;
}

@media screen and (max-width: 1400px) {
    .abtBanner {
        height: 550px;
    }
    .abtBanner img {
        height: 100%;
    }
    .abtBanner .choose {
        left: 0;
        width: 100%;
        margin-left: 0;
    }
}
@media screen and (max-width: 1120px) {
    .abtBanner .layer .title {
        line-height: 1.5em;
    }
    .abtBanner .layer .subtit {
        height: 45px;
    }
    .abtBanner .layer .subtit::after {
        width: 26px;
        height: 2px;
        margin-left: -13px;
    }
}
@media screen and (max-width: 991px) {
    .abtBanner {
        height: 450px;
    }
}
@media screen and (max-width: 767px) {
    .abtBanner {
        height: 400px;
    }
    .abtBanner .choose::after {
        height: 1px;
    }
    .abtBanner .choose {
        height: auto;
    }
    .choose li {
        margin-right: 21px;
    }
    .choose li a {
        font-size: 14px;
        line-height: 45px;
    }
    .choose li em {
        height: 1px;
    }
}
@media screen and (max-width: 425px) {
    .abtBanner .layer .title {
        font-size: 8.47vw;
    }
    .abtBanner .layer .subtit {
        font-size: 5.1764vw;
    }
}




/* content */
.course {
    width: 1170px;
    margin: 0 auto 85px;
}
.course .title{
    color: #333;
    font-size: 36px;
    text-align: center;
    margin-top: 88px;
}
.course span {
    display: block;
    color: #333;
    font-size: 16px;
    text-align: center;
    margin-bottom: 57px;
}
.course .list {
    margin: 5px 0;
    padding: 5px;
    transition: all 0.3s cubic-bezier(0.55,0,0.1,1);
}
.course .list:hover {
    transform: scale(1.01);
    box-shadow: 0 5px 20px #c8c8c8;
}
.course .list:nth-child(even) {
    background-color: rgba(175,175,175,0.1);
}
.course .list .row {
    margin: 0;
    padding: 5px 0;
}
.course .list .row .cont {
    padding: 0 15px;
}
.course .list .year {
    position: relative;
    color: #148FD2;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 18px;
    padding: 5px 20px;
    margin-bottom: 10px;
}
.course .list .year::before {
    content: '';
    display: block;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: -10px;
    width: 12px;
    height: 12px;
    border: 4px solid #148FD2;
    border-radius: 50%;
}
.course .list .tit {
    padding: 0 20px;
    color: #595959;
    font-size: 14px;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.8em;
    border-left: 2px solid rgba(80,80,80,.75);
}

@media screen and (max-width: 1199px) {
    .course {
        width: 970px;
    }
}
@media screen and (max-width: 991px) {
    .course {
        width: 750px;
    }
    .course .list:hover {
        transform: none;
        box-shadow: none;
    }
}
@media screen and (max-width: 767px) {
    .course {
        width: 100%;
        margin: 0 auto 37px;
    }
    .course p {
        margin-top: 30px;
    }
    .course span {
        margin-bottom: 18px;
    }
}