.section1 .cont:not(:last-child) {
    margin-bottom: 1rem
}

.section1 .cont:first-child .video-list li:nth-child(-n+3) {
    display: block
}

.section1 .cont:nth-child(2) .video-list li:nth-child(-n+6) {
    display: block
}

.section1 .cont .video-title {
    font-weight: 700;
    color: #000;
    font-size: .28rem;
    margin-bottom: .4rem
}

@media (max-width: 1024px) {
    .section1 .cont .video-title {
        font-size: 24px
    }
}

@media (max-width: 991px) {
    .section1 .cont .video-title {
        font-size: 22px
    }
}

@media (max-width: 767px) {
    .section1 .cont .video-title {
        font-size: .36rem
    }
}

.section1 .cont .video-list {
    -webkit-box-align: stretch;
    -webkit-align-items: stretch;
    -moz-box-align: stretch;
    align-items: stretch;
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
    -moz-box-pack: justify;
    justify-content: space-between;
    -webkit-flex-wrap: wrap;
    flex-wrap: wrap;
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: flex
}

@media (max-width: 767px) {
    .section1 .cont .video-list {
        display: block
    }
}

.section1 .cont .video-list li {
    -webkit-flex-shrink: 0;
    flex-shrink: 0;
    text-align: center;
    cursor: pointer;
    display: none;
    width: 32%;
    margin-bottom: .5rem
}

@media (max-width: 767px) {
    .section1 .cont .video-list li {
        width: 100%
    }
}

.section1 .cont .video-list li:hover .item-img:before {
    background-color: rgba(0, 0, 0, .2)
}

.section1 .cont .video-list li:hover .item-img b {
    -webkit-transform: scale(1.05);
    -moz-transform: scale(1.05);
    -ms-transform: scale(1.05);
    transform: scale(1.05)
}

.section1 .cont .video-list li .item-img {
    border-radius: .2rem;
    margin-bottom: .2rem
}

.section1 .cont .video-list li .item-img:before {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .4);
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    -webkit-transition: all .3s;
    -moz-transition: all .3s;
    transition: all .3s
}

.section1 .cont .video-list li .item-img:after {
    content: "\e619";
    font-family: iconfont;
    color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate3d(-50%, -50%, 0);
    -moz-transform: translate3d(-50%, -50%, 0);
    transform: translate3d(-50%, -50%, 0);
    z-index: 2;
    font-size: .6rem
}

@media (max-width: 1024px) {
    .section1 .cont .video-list li .item-img:after {
        font-size: .7rem
    }
}

@media (max-width: 991px) {
    .section1 .cont .video-list li .item-img:after {
        font-size: .8rem
    }
}

.section1 .cont .video-list li .item-text {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis
}

.section1 .cont .video-list .placeholder {
    width: 32%
}

.section1 .cont .more {
    text-align: center
}

.section1 .cont .more span {
    cursor: pointer;
    font-weight: 700;
    color: #000;
    -webkit-transition: all .3s;
    -moz-transition: all .3s;
    transition: all .3s
}

.section1 .cont .more span:hover {
    color: #df0434
}

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