section {
    width: 800px;
    float: left;
}

.video-content {
    margin: 18px;
    padding: 10px;
    background: #f7f7f7;
    border: 1px solid #ccc;
}

.video-content .video-description {
    width: 100%;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.video-content .video-description .title {
    font-weight: bold;
}

.box {
    width: 44%;
    margin: 50px 30px;
    box-sizing: border-box;
    position: relative;
}

.box .video-des {
    position: absolute;
    top: 0;
    left: 374px;
    width: 110%;
}

.video-content .video-box {
    width: 100%;
    box-sizing: border-box;
    position: relative;
}

.box .video-img,
.video-box .video-img {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100%;
    height:202px;
    z-index: 999;
    background: url('../images/video_play.png') no-repeat;
    background-position: center;
    background-size: 40px auto;
    cursor: pointer;
}

.video-play-img {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100%;
    z-index: 999;
    background: url('../images/video_play.png') no-repeat;
    background-position: center;
    background-size: 40px auto;
    cursor: pointer;
}


.video-btn {
    text-align: center;
    margin-top: 20px;
}

.video-btn a {
    color: #fff;
    width: 130px;
    display: inline-block;
    height: 34px;
    line-height: 34px;
    border-radius: 6px;
    font-weight: bold;
    margin: 4px;
    text-align: center;
}

.video-btn a:hover {
    text-decoration: none;
}

.qa-btn {
    border: 2px solid #8da953;
    background: #9ABA58;
}

.qa-btn:hover {
    background: #8da953;
}

.think-btn {
    border: 2px solid #d88914;
    background: #FF9800;
}

.think-btn:hover {
    background: #d88914;
}

@media only screen and (max-width: 667px) {
    .box {
        float: none;
        width: 95%;
        margin: auto;
    }

    section {
        width: 90%;
    }

    .btn1 img {
        width: 310px;
    }

    .seminar-btn img,
    .nyukai-btn img {
        width: 146px;
    }

    .softroad-btn img {
        width: 100px !important;
    }

    .video-btn a {
        width: 100px;
    }

    .video-description {
        flex-direction: column;
    }

    .video-des {
        position: relative !important;
        left: 0 !important;
    }
}