@media only screen and (max-width:768px) {
    .video_cont video {
        width: 100%;
        height: auto;
    }
}

.main-box {
    border: none;
    padding: 0;
    display: flex;
    justify-content: space-between;
    margin-bottom: 80px;
}

.main-box * {
    box-sizing: border-box;
}

.video-detail {
    flex: 1;
    border: 1px solid #f3f3f3;
    padding: 25px 55px;
    color: #1f2837;
    overflow: hidden;
}

.video-detail .title {
    font-size: 24px;
    line-height: 40px;
    margin-bottom: 16px;
}

.video-box {
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    position: relative;
    background: #000;
    margin-bottom: 20px;
}

.video-box video {
    position: absolute;
    width: 100%;
    height: 100%;
}

.video-detail .des {
    font-size: 16px;
    line-height: 30px;
    margin-bottom: 25px;
}

.video-detail .time {
    font-size: 14px;
    color: #999;
    margin-bottom: 40px;
}

.recommend {
    width: 310px;
    margin-left: 30px;
    border: 1px solid #f3f3f3;
}

.other-news {
    display: flex;
    justify-content: space-between;
}

.other-news a {
    display: inline-block;
    max-width: 45%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #1f2837;
    font-size: 14px;
}

.other-news a.prev-news {
    color: #999;
}

.other-news a:hover {
    text-decoration: underline;
}

.recommend .title {
    padding: 0 20px;
    height: 64px;
    line-height: 64px;
    background: #1f2837;
    font-size: 20px;
    color: #fff;
}

.recommend-list {
    padding: 25px 20px;
}

.recommend-list li {
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
}



.recommend-list .img-box {
    width: 150px;
    height: 84.375px;
    /* margin-right: 12px; */
    width: 48%;
    position: relative;
    background-color: #000;
}

.recommend-list .img-box img {
    position: absolute;
    object-fit: contain;
    width: 100%;
    height: 100%;
}

.recommend-list .play-icon {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    background: url(http://bsg-s.nbxc.com/site_themes/en/qx_sales/images/bofang.png) no-repeat center;
    background-size: cover;
}

.recommend-list .text {
    /* flex: 1; */
    width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.recommend-list .name {
    font-size: 14px;
    line-height: 21px;
    color: #1f2837;
    height: 42px;
    text-overflow: -o-ellipsis-lastline;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

.recommend-list .time {
    font-size: 12px;
    color: #999;
}

.related-pro {
    padding-bottom: 50px;
}

.related-pro .title {
    text-align: center;
    font-size: 24px;
    line-height: 44px;
    color: #1f2837;
    margin-bottom: 25px;
}

.swiper-box {
    position: relative;
    padding: 0 60px;
}

.swiper-related {
    position: static;
}

.swiper-related .img-box {
    display: table-cell;
    text-align: center;
    border: 1px solid #f3f3f3;
}

.swiper-related .img-box img {
    max-width: 100%;
    max-width: 100%;
}

.swiper-related .swiper-slide a {
    display: block;
    width: 100%;
}

.swiper-related .name {
    margin-top: 10px;
    font-size: 14px;
    line-height: 21px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.btn_r,
.btn_l {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 108px;
    line-height: 108px;
    text-align: center;
    background: #e5e5e5;
}

.btn_r .iconfont,
.btn_l .iconfont {
    font-size: 32px;
}

.btn_r {
    right: 0;
}

.btn_l {
    left: 0;
}

@media only screen and (max-width:1040px) {
    .m {
        margin-bottom: 0;
    }

    .m .path {
        display: none;
    }

    .video-detail {
        padding: 25px 15px;
        border: none;
    }

    .main-box {
        display: block;
        margin-bottom: 0;
    }

    .other-news {
        display: block;
    }

    .other-news a {
        display: block;
        line-height: 26px;
        max-width: 100%;
    }

    .other-news a.prev-news {
        color: #1f2837;
    }

    .recommend {
        width: 100%;
        margin-left: 0;
        border: none;
    }

    .recommend-list {
        padding: 25px 15px;
    }

    .related-pro .title {
        font-size: 18px;
    }

    .swiper-box {
        padding: 0 15px;
    }

    .btn_r,
    .btn_l {
        display: none;
    }
}

@media only screen and (max-width:1040px) {
    .m {
        padding: 0;
    }

    .video-detail {
        padding: 16px 15px;
    }

    .video-detail .title {
        font-size: 18px;
        line-height: 28px;
        margin-bottom: 10px;
    }

    .video-box {
        margin-bottom: 10px;
    }

    .video-detail .des {
        font-size: 14px;
        line-height: 22px;
        margin-bottom: 15px;
    }

    .video-detail .time {
        margin-bottom: 35px;
    }

    .recommend .title {
        font-size: 18px;
    }

    .recommend-list li {
        margin-bottom: 15px;
    }
}

.video-item iframe{
    height:100%
}