body{
    background: rgb(241,244,247);
}
.banner{
    width: 100%;
    height: 450px;
    background:url("../images/p5.JPG") no-repeat center center;
    background-size: cover;
}
.banner .container{
    height: 100%;
    position: relative;
}
.banner .bTitle{
    position: absolute;
    bottom:0;
    color: #fff;
}
h3{
    font-size: 42px;
    color: #fff;
    font-weight: normal;
}
.banner .bTitle p{
    display: flex;
    align-items: center;
    margin: 10px 5px 20px 5px;
}
.banner .bTitle img{
    width: 20px;
    margin-right: 5px;
}
.content{
    padding:4% 0;
    background: url("../images/bg-fixed.jpg") no-repeat fixed;
    background-size: cover;
}
.content .container{
    background-color: #fff;
    padding: 3%;
    box-sizing: border-box;
}
.content .container ul{
    display: flex;

}
.content .container ul li{
    flex:0 33%;
}
.content .container>ul li:nth-child(2){
    margin:0 40px;
}
.content .container ul li .top{
    overflow: hidden;
    height: 80%;
    border-radius: 20px;
    position: relative;
}
.content .container ul li .top .play{
    width: 40px;
    height: 40px;
    position: absolute;
    left: 50%;
    top:50%;
    transform: translate(-50%,-50%);
}
.content .container ul li img,
.content .container ul li video{
    width: 100%;
    height: 100%;
    transition: all .5s;
    object-fit: cover;
}
.content .container ul li:hover .top video{
    transform: scale(1.1);
}
.content .container ul li:hover h4{
    letter-spacing: 2px;
    color: #007aff;
}
.content .container ul li h4{
    text-align: center;
    font-size: 22px;
    margin-top: 10px;
    font-weight: normal;
    transition: all .5s;
}
.content .container ul li .mask{
    width: 100vw;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: rgba(0,0,0,.7);
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
}
.content .container ul li .show{
    display: flex;
}
.content .container ul li .mask .video{
    width: 800px;
    height: 450px;
    position: relative;
}
.content .container ul li .mask img{
    width: 20px;
    height: 20px;
    position: absolute;
    right: 10px;
    top:6px;
    z-index: 999;
}
.content .container ul li .mask video{
    width: 100%;
    height: 100%;
}
.paging{
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}
.paging span{
    width: 30px;
    height: 30px;
    margin:0 3px;
    text-align: center;
    line-height: 30px;
    font-size: 14px;
}
.paging .num{
    background-color: #164181;
}
.paging .num a{
    color: #fff;
}
.paging .btn{
    border-radius: 2px;
    background-color: #f4f4f5;
    color: #c0c4cc;
}
.paging p{
    font-size: 14px;
    color: #747474;
    margin-left: 12px;
}
.paging input{
    background-color: rgba(255, 255, 255, 0);
    font-size: 14px;
    color: #606266;
    border: 1px solid #ebebeb;
    border-radius: 2px;
    line-height: 28px;
    height: 28px;
    width: 40px;
    text-align: center;
    outline: none;
    margin:0 5px;
}
@media (max-width: 1000px) {
    .content .container ul li .mask .video{
        width: 90%;
        height: auto;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    h3{
        font-size: 26px;
    }
    .content .container ul{
        flex-wrap: wrap;
    }
    .content .container ul li:nth-child(2){
        margin: 0 0 20px 0;
    }
    .content .container ul li{
        flex:1 80%;
        margin-bottom: 20px;
    }

    .content .container ul li h4{
        font-size: 18px;
    }
}