/* 第一屏幕 */
.first-screen{
    width: 1920px;
    height: 440px;
    margin: 0 auto;
}
.first-screen img{
    display: block;
    width: 100%;
    height: 100%;
}

/* 第二屏幕 */
.second-screen{
    width: 1500px;
    padding-bottom: 64px;
    margin: 58px auto 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.second-screen-left{
    width: 226px;
    /*height: 212px;*/
    background: #F5F5F5;
}
.second-screen-left span{
    display: flex;
    width: 100%;
    height: 71px;
    justify-content: center;
    align-items: center;
    font-size: 26px;
    font-weight: 400;
    color: #242424;
    cursor: pointer;
}
.second-screen-left .second-screen-left-selected{
    color: #53A2F0;
}

.second-screen-right{
    width: 1230px;
    height: 100%;
}

.second-screen-right-label{
    width: 330px;
    height: 26px;
    border-left: 4px solid #53A2F0;
    font-size: 26px;
    font-weight: 400;
    color: #838383;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    line-height: 26px;
}
.second-screen-right-label span:last-child{
    color: #242424;
}
.second-screen-right-label span:first-child{
    margin-left: 5px;
}

.second-screen-right-content{
    width: 100%;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    flex-wrap: wrap;
    margin-top: 37px;
}
.second-screen-right-content .second-screen-right-content-item{
    width: 380px;
    height: 240px;
    position: relative;
    margin-bottom: 30px;
    margin-right: 30px;
}

.second-screen-right-content .second-screen-right-content-item img{
    width: 380px;
    height: 240px;
    display: block;
}

.img-mask{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #53A2F0;
    opacity: 0.75;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    display: none;
}
.img-mask p:first-child{
    font-size: 26px;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 80px;
    margin: 0 41px;
}
.img-mask p:last-child{
    line-height: 34px;
    margin: 0 41px;
    font-size: 20px;
    font-weight: 400;
    color: #FFFFFF;
}
.second-screen-right-content-item:hover .img-mask{
    display: flex;
    cursor: pointer;
}

.second-screen-right-page{
    width: 100%;
    height: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 23px;
}
.second-screen-right-page li{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 30px;
    height: 30px;
    background: #FFFFFF;
    border: 2px solid #DFDFDF;
    margin-right: 10px;
    font-size: 20px;
    font-weight: 400;
    color: #838383;
    cursor: pointer;
}

.second-screen-right-page .second-screen-right-page-selected{
    background: #53A2F0;
    color: #FFF;
    border-color: #53A2F0;
}