.wotu-banner {
    background-image: url("../images/u1509.png");
}

.bgGray {
    background-color: #FAFAFA;
}

.bgWhite {
    background-color: #FFF;
}

.section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 56px 0;
}

.sectionTitle {
    font-size: 24px;
    font-weight: bold;
    line-height: 40px;
    margin-bottom: 16px;
}

.sectionTitle:before {
    content: '';
    width: 3px;
    height: 24px;
    background-color: #c7000b;
    display: inline-block;
    vertical-align: middle;
    margin-right: 8px;
}

.videoContent {
    margin-left: -8px;
    margin-right: -8px;
    display: flex;
    flex-wrap: nowrap;
}

.videoBox {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 33.3333333%;
    flex: 0 0 33.3333333%;
    max-width: 33.3333333%;
    position: relative;
    width: 100%;
    min-height: 1px;
    padding-left: 8px;
    padding-right: 8px;
    margin-bottom: 16px;
    height: 260px;
    overflow: hidden;
}

.videoCard {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.videoCard img {
    width: 100%;
    height: 260px;
    transition: all 0.5s;
}

.mask {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.0);
}

.mask .playIcon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: url(../images/u1582.png) no-repeat center;
    background-size: cover;
    display: none;
}

.videoInfo {
    display: flex;
    position: absolute;
    padding: 24px;
    bottom: 0;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.3);
}

.videoTitle {
    font-size: 18px;
    font-weight: bold;
    color: #FFF;
}

.videoTime {
    height: 24px;
    line-height: 24px;
    font-size: 14px;
    color: #FFF;
    border-radius: 12px;
    padding: 0 16px;
    background-color: rgba(255, 255, 255, 0.5);
    display: none;
}

.videoCard:hover img {
    transform: scale(1.1, 1.1);
}

.videoCard:hover .mask {
    background-color: rgba(0, 0, 0, 0.3);
}

.videoCard:hover .mask .playIcon {
    display: inline-block;
}

.videoCard:hover .mask .videoTime {
    display: inline-block;
}

/* 视频样式 */
.video_show {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

.video_show_cover {
    position: absolute;
    top: 0;
    left: 0;
    background: #000;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.7;
}

#videoShow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.video_block {
    max-width: 700px;
    width: 100%;
    margin: 0 auto;
    margin-top: 220px;
    position: relative;
}

.icon.close_bigger {
    position: absolute;
    top: 2px;
    right: 2px;
    opacity: 0.8;
    width: 44px;
    height: 44px;
    background: url(../images/close-bigger.png) no-repeat;
    background-position: 0;
    margin-left: 20px;
    cursor: pointer;

}

@media (max-width: 768px) {
    .wotu-container {
        margin-top: 60px;
    }

    .section {
        padding: 16px;
    }

    .videoContent {
        flex-wrap: wrap;
        margin: 0;
    }

    .videoBox {
        max-width: 100%;
        flex: 0 0 100%;
        padding: 0;
        height: 200px;
    }

    .videoCard img {
        height: 200px;
    }

    .sectionTitle {
        font-size: 18px;
    }

    .mask {
        background-color: rgba(0, 0, 0, 0.3);
    }

    .videoCard .mask .playIcon {
        display: inline-block;
    }

    .videoCard .mask .videoTime {
        display: inline-block;
    }

    .videoTitle {
        font-size: 16px;
    }
}

@media screen and (max-width: 1024px) and (min-width: 768px) {
    .videoBox {
        max-width: 50%;
        flex: 0 0 50%;
    }
}