.jiaocheng-bg{
    height: 60vh;
    background:url(../assets/homepage/home_bg.jpg) no-repeat center;
    background-size: cover;
}
.jiaocheng-top{
    text-align: center;
    padding-top: 20vh;
}
.jiaocheng-list{
    text-align: left;
    margin: 80px 0;
    text-align: center;
    font-size: 16px;
}
.jiaocheng-list li{
    display: inline-block;
    margin-right: 20px;
}
.jiaocheng-list li.active{
    color: rgb(0, 199, 92);
}
.jiaocheng-list li:hover{
    cursor: pointer;
}
.jiaocheng-top input{
    width: 300px;
    padding-left: 20px;
    height: 44px;
    background: rgba(242, 242, 242, 1);
    border-radius: 25px;
    border: none;
    box-shadow: none;
}
.jiaocheng-top input:focus{
    outline: none;
}
.video-list{
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}
.video-list-item{
    width: 30%;
    margin: 10px;
}
.video-list-item video{
    width: 100%;
}

.swiper-poster {
    width: 100%;
    position: relative;
    overflow: hidden;
    cursor: grab;
}

.swiper-poster img {
    width: 100%;
    height: 100%;
    display: block;
    transition: all .5s;
}

.swiper-poster .poster-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: .7rem;
    background-color: rgba(121, 90, 244, .4);
    border-radius: 50%;
}

.swiper-poster .poster-play .poster-btn {
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background-color: #896ef1 !important;
    color: #fff;
    font-size: 35px;
}

.modal-mark {
    display: none;
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 99;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    overflow: auto;
    z-index: 1000;
    background-color: rgba(0, 0, 0, .5);
}

.modal-content {
    width: 960px;
    height: 540px;
    position: absolute;
    margin-top: -270px;
    margin-left: -480px;
    left: 50%;
    top: 50%;
}

.modal-mark .modal-content .modal-video {
    width: 100%;
    height: 100%;
}

/* .videos {
    display: none;
    border: 1px solid #080808;
    position: fixed;
    left: 50%;
    top: 50%;
    margin-left: -320px;
    margin-top: -210px;
    z-index: 100;
    width: 640px;
    height: 360px;
} */

.vclose {
    position: absolute;
    right: 1%;
    top: 1%;
    border-radius: 100%;
    cursor: pointer;
}
.video-title{
    line-height: 80px;
}

/* 手机屏幕 */
@media screen and (max-width: 767px) {
    .vclose {
        right: 50%;
    }
    .jiaocheng-top input{
        width: 200px;
    }
    .jiaocheng-bg{
        height: 30vh;
    }
    .jiaocheng-top{
        padding-top: 10vh;
    }
    .video-list{
        display: block;
    }
    .video-list-item{
        width: calc(100% - 20px);
        margin: 10px;
    }
}