@media (max-width: 499px) {
    /* 顶部背景 */
    .about-header-container {
        width: 100%;
        height: 258px;
        position: relative;
    }

    .about-header-container-bg {
        width: 100%;
        height: 258px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .about-header-container-bg-img {
        width: 100%;
        height: 258px;
        object-fit: cover;
    }

    .about-header-container-content {
        width: 100%;
        height: 258px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        position: absolute;
        top: 0;
        left: 0;
        background-color: rgba(0, 0, 0, 0.2);
    }

    .about-header-container-title {
        width: 100%;
        text-align: center;
        font-size: 25px;
        font-weight: 500;
        color: #FFFFFF;
    }

    /* 公司介绍 */
    .about-company-info-container {
        width: 100%;
        padding: 30px 0;
    }

    .about-company-info-container-title {
        width: 100%;
        text-align: left;
        font-size: 25px;
        font-weight: 400;
        color: #202429;
    }

    .about-company-info-container-desc {
        width: 100%;
        text-align: left;
        font-size: 16px;
        line-height: 22px;
        font-weight: 300;
        color: #858585;
        padding-top: 20px;
    }

    .about-company-info-container-poster {
        width: 100%;
        margin-top: 20px;
        height: 294px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .about-company-info-container-poster-img {
        width: 100%;
        height: 294px;
        object-fit: cover;
    }

    /* 公司业务 */
    .about-provision-services-container {
        width: 100%;
        padding-bottom: 30px;
    }

    .about-provision-services-container-title {
        width: 100%;
        text-align: left;
        font-size: 25px;
        font-weight: 400;
        color: #202429;
    }

    .about-provision-services-container-desc {
        width: 100%;
        text-align: left;
        font-size: 16px;
        line-height: 22px;
        font-weight: 300;
        color: #858585;
        padding-top: 20px;
    }

    .about-provision-services-list {
        padding-top: 20px;
        width: 100%;
    }

    .about-provision-services-group {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .about-provision-service {
        width: 100%;
        position: relative;
        height: 260px;
        margin-bottom: 20px;
    }

    .about-provision-service-poster {
        width: 100%;
        height: 260px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .about-provision-service-poster-img {
        width: 100%;
        height: 260px;
        object-fit: cover;
    }

    .about-provision-service-content {
        width: calc(100% - 40px);
        height: calc(260px - 60px);
        padding: 30px 20px;
        position: absolute;
        top: 0;
        left: 0;
        display: flex;
        flex-direction: row;
        justify-content: flex-start;
        align-items: flex-end;
        background-color: rgba(0, 0, 0, 0.1);
    }

    .about-provision-service-title {
        width: 100%;
        text-align: left;
        font-size: 20px;
        font-weight: 600;
        color: #FFFFFF;
    }

    /* 车间介绍 */
    .about-workshop-container {
        width: 100%;
        padding: 30px 0;
        background-color: #ede9e9;
    }

    .about-workshop-container-content {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .about-workshop-container-left {
        width: 100%;
    }

    .about-workshop-container-title {
        width: 100%;
        text-align: left;
        font-size: 25px;
        font-weight: 400;
        color: #202429;
    }

    .about-workshop-container-desc {
        width: 100%;
        text-align: left;
        font-size: 16px;
        line-height: 22px;
        font-weight: 300;
        color: #858585;
        padding-top: 20px;
    }

    .about-workshop-container-right {
        width: 100%;
        height: 266px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .about-workshop-container-video-wrap {
        width: 100%;
        height: 266px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        margin-top: 20px;
    }

    .about-workshop-container-video {
        width: 100%;
        height: 266px;
        background-color: #000000;
    }
    
    .about-workshop-container-video iframe{
        width: 100%;
        height: 266px;
    }

    /* 员工介绍 */
    .about-worker-container {
        width: 100%;
        padding-bottom: 30px;
        background-color: #ede9e9;
    }

    .about-worker-container-content {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .about-worker-container-left {
        width: 100%;
    }

    .about-worker-container-title {
        width: 100%;
        text-align: left;
        font-size: 25px;
        font-weight: 400;
        color: #202429;
    }

    .about-worker-container-desc {
        width: 100%;
        text-align: left;
        font-size: 16px;
        line-height: 22px;
        font-weight: 300;
        color: #858585;
        padding-top: 20px;
    }

    .about-worker-container-right {
        width: 100%;
        height: 246px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        margin-top: 20px;
    }

    .about-worker-container-poster {
        width: 100%;
        height: 246px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .about-worker-container-poster-img {
        width: 100%;
        height: 246px;
        object-fit: cover;
    }

    /* 质量检测 */
    .about-quality-monitoring-container {
        width: 100%;
        padding: 30px 0;
    }

    .about-quality-monitoring-container-header {
        width: 100%;
    }

    .about-quality-monitoring-container-title {
        width: 100%;
        text-align: left;
        font-size: 25px;
        font-weight: 400;
        color: #202429;
    }

    .about-quality-monitoring-flow-list {
        width: 100%;
        padding-top: 20px;
    }

    .about-quality-monitoring-flow-group {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin-bottom: 20px;
    }

    .about-quality-monitoring-flow {
        width: 100%;
        margin-bottom: 20px;
    }

    .about-quality-monitoring-flow-poster {
        width: 100%;
        height: 224px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .about-quality-monitoring-flow-poster-img {
        width: 100%;
        height: 224px;
        object-fit: cover;
    }

    .about-quality-monitoring-flow-title {
        width: calc(100% - 20px);
        padding: 0 10px;
        padding-top: 15px;
        font-size: 18px;
        line-height: 25px;
        font-weight: 400;
        text-align: center;
        color: #202429;
    }

    /* 核心价值观 */
    .about-core-values-container {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .about-core-values-container-left {
        width: calc(100% - 40px);
        padding: 30px 20px;
        background-color: #473945;
    }
    .about-core-values-footer{
        /*padding-top: 20px;*/
    }
    .about-core-values-contact-btn{
        width: 163px;
        height: 48px;
        border-radius: 24px;
        line-height: 48px;
        text-align: center;
        background-color: #FFFFFF;
        color: #473945;
        font-size: 15px;
        font-weight: 500;
        display: block;
        text-decoration: none;
        margin: 0 auto;
    }

    .about-core-values-container-title {
        width: 100%;
        text-align: left;
        font-size: 25px;
        font-weight: 400;
        color: #FFFFFF;
    }

    .about-core-values-list {
        width: 100%;
        padding-top: 20px;
    }

    .about-core-value {
        width: 100%;
        padding-bottom: 20px;
        border-bottom: #eeeeee solid 1px;
        margin-bottom: 20px;
    }

    .about-core-value:last-of-type {
        border-bottom: none;
    }

    .about-core-value-title {
        width: 100%;
        text-align: left;
        font-size: 20px;
        font-weight: 400;
        color: #FFFFFF;
    }

    .about-core-value-desc {
        width: 100%;
        text-align: left;
        font-size: 15px;
        font-weight: 300;
        line-height: 20px;
        padding-top: 20px;
        color: #FFFFFF;
    }

    .about-core-values-container-right {
        width: 100%;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: stretch;
    }

    .about-core-values-container-poster {
        width: 100%;
        height: 298px;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .about-core-values-container-poster-img {
        width: 100%;
        height: 298px;
        object-fit: cover;
    }
}