.main>.web_th{margin-bottom: 12px;}

.videoList .list {
    width: 100%;
    flex-wrap: wrap;
    justify-content: unset;
}

.videoList .list li {
    width: 32%;
    margin-right: 2%;
    position: relative;
    margin-right: 15px;
}

.videoList .list li:nth-child(3n) {
    margin-right: 0;
}
.videoList .list li:nth-child(n+4){
    margin-top: 24px;
}

.videoList li .item_icon {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 64px;
    height: 64px;
    background: url(../img/videobtn.png) no-repeat center;
    background-size: 78% auto;
    background-color: var(--commonColor);
    border-radius: 50%;
    margin: -32px 0 0 -32px;
}

.videoList li .title {
    display: inline-block;
    font-family: 'Times-Bold';
    font-weight: bold;
    font-size: 20px;
    line-height: 1.25;
    text-align: left;
    text-transform: none;
    margin-top: 12px;
}

.videoList li:hover .title{color: var(--commonColor);}
.videoList li:hover .item_icon{
    box-shadow: 0 0 12px 0 rgba(0, 0, 0, 0.6);
}

@media (max-width:980px) {
    .videoList li .title{font-size: 20px;}
    .videoList .list li{
        width: 100%; margin-right: 0;
    }
    .videoList .list li:nth-child(n+2){margin-top: 20px;}
}