.messageBoard {
    display: none;
}

/* 页面内容 */
.aboutUs {
    margin-top: 102px;
    background: #f5f5f5;
}

/* banner */
.aboutUs .banner {
    width: 100%;
    height: 446px;
}

.aboutUs .banner img {
    width: 100%;
    height: 100%;
}

/* 面包屑导航 */
.aboutUs .container .back {
    margin: 20px 0;
}

.aboutUs .container .back a {
    color: #3e3e3e;
}

.aboutUs .container .back a:hover {
    color: #3281ff;
    text-decoration: underline;
}

.aboutUs .container .back .last {
    color: #3e3e3e;
    cursor: text;
}


/* 公司介绍 */
.aboutUs .container .introduce {
    width: 100%;
    padding: 50px;
    box-sizing: border-box;
    background: #ffffff;
    margin-top: -60px;
    position: relative;
}

.aboutUs .container .introduce .title {
    margin-bottom: 30px;
    color: #333333;
}

.aboutUs .container .introduce .content {
    color: #666666;
}


/* 源动力历史 */
.aboutUs .container .past_records {
    margin-bottom: 20px;
}

.aboutUs .container .past_records .text-center .media-bg {
    font-weight: bold;
    color: #dedcdf;
}

.aboutUs .container .past_records .text-center .media-heading {
    /* font-weight: bold; */
    color: #001120;
    position: relative;
    left: 0;
    top: -28px;
    margin-bottom: -20px;
}

.aboutUs .container .past_records .text {
    color: #666666;
    margin-bottom: 20px;
}

.aboutUs .container .past_records .timeline {
    width: 95%;
    padding: 0 2.5%;
    box-sizing: border-box;
}

.aboutUs .container .past_records .timeline img {
    width: 100%;
}

/* 企业文化 */
.aboutUs .enterprise_culture {
    padding: 50px 0 30px 0;
    box-sizing: border-box;
    background: #eaf2ff;
}

.aboutUs .enterprise_culture .container .row .left .media-bg {
    font-weight: bold;
    color: #d2dbe8;
    position: relative;
}

.aboutUs .enterprise_culture .container .row .left .media-heading {
    /* font-weight: bold; */
    color: #001120;
    position: absolute;
    left: 65px;
    top: 50px;
}

.aboutUs .enterprise_culture .container .row .left .text {
    margin-top: 50px;
}

.aboutUs .enterprise_culture .container .row .left .text .list {
    margin-bottom: 30px;
}

.aboutUs .enterprise_culture .container .row .left .text .list img {
    width: 40px;
    vertical-align: middle;
}

.aboutUs .enterprise_culture .container .row .left .text .list .text1 {
    display: inline-block;
    margin: 0 10px;
    color: #333333;
    vertical-align: text-top;
}

.aboutUs .enterprise_culture .container .row .left .text .list .text2 {
    display: inline-block;
    width: 70%;
    margin: 0;
    color: #666666;
    vertical-align: bottom;
    line-height: 35px;
}

.aboutUs .enterprise_culture .container .row .left .text .list .text3 {
    vertical-align: text-top;
}


.aboutUs .enterprise_culture .container .row .right img {
    width: 100%;
}

/* 公司图片 */
.aboutUs .exhibition {
    padding: 30px 0;
    box-sizing: border-box;
}

.aboutUs .exhibition .container .row .customer_bd {
    padding: 20px;
    box-sizing: border-box;
    background: #ffffff;
    width: 100%;
}

.aboutUs .exhibition .container .row .customer_bd img {
    width: 100%;
}

.aboutUs .exhibition .text-center .media-bg {
    font-weight: bold;
    color: #d9e3ed;
}

.aboutUs .exhibition .text-center .media-heading {
    /* font-weight: bold; */
    color: #001120;
    position: relative;
    left: 0;
    top: -28px;
    margin-bottom: -20px;
}

.aboutUs .exhibition .text {
    color: #666666;
    margin-bottom: 30px;
}

/* 软著证书 */
.aboutUs .zhengshu {
    padding-top: 10px;
    padding-bottom: 240px;
    box-sizing: border-box;
}

.aboutUs .zhengshu .text-center .media-bg {
    font-weight: bold;
    color: #d9e3ed;
}

.aboutUs .zhengshu .text-center .media-heading {
    /* font-weight: bold; */
    color: #001120;
    position: relative;
    left: 0;
    top: -28px;
    margin-bottom: -20px;
}

.aboutUs .zhengshu .text {
    color: #666666;
    margin-bottom: 20px;
}

.aboutUs .zhengshu .container {
    width: 80%;
}

.aboutUs .zhengshu .container img {
    width: 100%;
}


/* 768的屏以下 */
@media screen and (max-width: 768px) {

    .aboutUs .enterprise_culture .container .row .left .text .list .text3 {
        line-height: 23px;
    }

    .aboutUs .banner {
        display: none;
    }

    .aboutUs .container .introduce {
        margin-top: 20px;
    }

    /* 企业文化 */
    .aboutUs .enterprise_culture .container .row .left .media-bg {
        text-align: center;
    }

    .aboutUs .enterprise_culture .container .row .left .media-heading {
        position: relative;
        left: 0;
        top: -30px;
        text-align: center;
    }

    .aboutUs .enterprise_culture .container .row .left .text {
        margin: 0;
    }

    .aboutUs .enterprise_culture .container .row .left .text .list .text1 {
        margin: 0;
    }

    .aboutUs .enterprise_culture .container .row .right {
        text-align: center;
    }

    /* 证书 */
    .aboutUs .zhengshu .text-center .media-heading {
        top: -20px;
    }

    .aboutUs .zhengshu {
        padding-bottom: 0px;
    }

}