@media screen and (max-width: 1366px) {
    .main_wrap {
        margin: 57px 0 0 0;
    }

    /* 关于 */
    .about_wrap {
        padding: 71px 256px;
    }

    .about_title {
        font-size: 28px;
    }

    .about_content {
        margin: 42px 0 0 0;
    }

    .about_text {
        font-size: 14px;
        margin: 0 0 22px 0;
        line-height: 22px;
    }

    .about_intro {
        margin: 22px 0 0 0;
    }

    .intro_left {
        width: calc(100% - 498px);
    }

    .intro_item {
        padding: 22px 0;
    }

    .year_text {
        font-size: 28px;
    }

    .year_text>span {
        font-size: 14px;
        margin: 8px 0 0 0;
    }

    .intro_text {
        font-size: 12px;
    }

    .video_wrap {
        width: 498px;
        height: 375px;
        margin: 0 0 0 42px;
    }


    .play_icon {
        width: 80px;
        height: 80px;

    }

    /* 我们的历程 */
    .course_wrap {
        padding: 71px 0;
    }

    .course_title {
        font-size: 28px;
    }

    .time_wrap {
        margin: 110px 0 0 0;
        padding: 0 178px;
    }

    .change_icon {
        width: 28px;
        height: 28px;
    }

    .time_line_wrap {
        width: calc(100% - 56px);
        padding: 0 28px;
    }

    .time_list {
        position: absolute;
        width: calc(100% - 170px - 170px - 56px - 56px);
        padding: 0 22px;
        bottom: 8px;
    }

    .time_item {
        font-size: 14px;
    }

    .time_circle {
        width: 10px;
        height: 10px;
        margin: 17px 0 0 0;

    }

    .year_active {
        font-size: 22px;
    }

    .time_active {
        width: 52px;
        height: 52px;
        margin: 5px 0 -18px 0;
    }

    .course_content {
        margin: 71px 170px 0 170px;
    }

    .course_img {
        width: 401px;
        height: 251px;
        margin: 0 42px 0 0;
    }

    .course_content_title {
        font-size: 42px;
    }

    .course_content_title>span {
        font-size: 16px;
    }

    .course_content_item {
        margin: 17px 0 0 0;
    }

    .course_content_item>span {
        margin: 0 22px 0 0;
    }


    .strength_wrap {
        padding: 71px 0;
    }

    .enterprise_list {
        margin: 42px 0 71px 0;
        padding: 0 170px;
    }

    .enterprise_item {
        font-size: 16px;
        padding: 0 12px;
    }

    .enterprise_icon {
        width: 55px;
        height: 62px;
        margin: 0 auto 22px;
    }

    .honor_list {
        margin: 42px 0 0 0;
        grid-gap: 22px;
        padding: 0 170px;
    }

    .honor_item {
        border-radius: 12px;
        padding: 17px 0;
        font-size: 12px;
    }

    .honor_icon {
        width: 42px;
        height: 42px;
        margin: 0 auto 14px;
    }

    .contact_wrap {
        padding: 71px 213px;
    }

    .contact_content {
        margin: 42px 0 0 0;
    }

    .contact_header {
        font-size: 28px;
    }

    .contact_item {
        padding: 17px;
        width: 368px;
        border-radius: 8px;
        margin: 0 0 22px 0;
    }

    .contact_item_title {
        font-size: 12px;
        color: #1D2129;
    }

    .contact_text {
        font-size: 14px;
    }

    .contract_icon {
        width: 28px;
        height: 28px;
        margin: 0 8px 0 0;

    }

    .image_item {
        margin: 0 22px 0 0;
    }

    .image_item:last-of-type {
        margin-right: 0;
    }

    .image_item {
        font-size: 12px;
    }

    .contact_img {
        width: 166px;
        height: 166px;
        margin: 0 0 14px 0;
    }

    .address_wrap {
        padding: 71px 0;
    }

    .address_list {
        margin: 22px 0 0 0;
        grid-gap: 22px;
        padding: 0 170px;
    }

    .address_item {
        border-radius: 8px;
    }

    .location_content {
        padding: 12px 22px;
    }

    .address_title {
        font-size: 14px;
    }

    .location_item {
        margin: 10px 0 0 0;
        font-size: 12px;
    }

    .location_icon {
        width: 18px;
        height: 18px;
        margin: 4px 4px 0 0;
    }
}


@media screen and (min-width: 1370px) and (max-width: 1680px) {
    .main_wrap {
        margin: 70px 0 0 0;
    }

    /* 关于 */
    .about_wrap {
        padding: 88px 315px;
    }

    .about_title {
        font-size: 35px;
    }

    .about_content {
        margin: 52px 0 0 0;
    }

    .about_text {
        font-size: 16px;
        margin: 0 0 28px 0;
        line-height: 28px;
    }

    .about_intro {
        margin: 28px 0 0 0;
    }

    .intro_left {
        width: calc(100% - 612px);
    }

    .intro_item {
        padding: 28px 0;
    }

    .year_text {
        font-size: 35px;
    }

    .year_text>span {
        font-size: 16px;
        margin: 8px 0 0 0;
    }

    .intro_text {
        font-size: 14px;
    }

    .video_wrap {
        width: 612px;
        height: 462px;
        margin: 0 0 0 52px;
    }


    .play_icon {
        width: 98px;
        height: 98px;
        top: 182px;
    }

    /* 我们的历程 */
    .course_wrap {
        padding: 88px 0;
    }

    .course_title {
        font-size: 35px;
    }

    .time_wrap {
        margin: 135px 0 0 0;
        padding: 0 210px;
    }

    .change_icon {
        width: 35px;
        height: 35px;
    }

    .time_line_wrap {
        width: calc(100% - 70px);
        padding: 0 35px;
    }

    .time_list {
        position: absolute;
        width: calc(100% - 210px - 210px - 75px - 75px);
        padding: 0 28px;
        bottom: 10px;
    }

    .time_item {
        font-size: 16px;
    }

    .time_circle {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        border: 1px solid #01C3C4;
        background-color: #fff;
        margin: 21px 0 0 0;

    }

    .year_active {
        font-size: 28px;
    }

    .time_active {
        width: 70px;
        height: 70px;
        margin: 5px 0 -25px 0;
    }

    .course_content {
        margin: 88px 210px 0 210px;
    }

    .course_img {
        width: 493px;
        height: 308px;
        margin: 0 52px 0 0;
    }

    .course_content_title {
        font-size: 50px;
    }

    .course_content_title>span {
        font-size: 21px;
    }

    .course_content_item {
        margin: 21px 0 0 0;
    }

    .course_content_item>span {
        margin: 0 28px 0 0;
    }


    .strength_wrap {
        padding: 88px 0;
    }

    .enterprise_list {
        margin: 52px 0 88px 0;
        padding: 0 210px;
    }

    .enterprise_item {
        font-size: 20px;
        padding: 0 13px;
    }

    .enterprise_icon {
        width: 68px;
        height: 77px;
        margin: 0 auto 28px;
    }

    .honor_list {
        margin: 52px 0 0 0;
        grid-gap: 28px;
        padding: 0 210px;
    }

    .honor_item {
        border-radius: 14px;
        padding: 21px 0;
        font-size: 14px;
    }

    .honor_icon {
        width: 52px;
        height: 52px;
        margin: 0 auto 17px;
    }


    .contact_wrap {
        padding: 88px 262px;
    }

    .contact_content {
        margin: 52px 0 0 0;
    }

    .contact_header {
        font-size: 32px;
    }

    .contact_item {
        padding: 21px;
        width: 452px;
        display: flex;
        align-items: center;
        background-color: #fff;
        border-radius: 10px;
        margin: 0 0 28px 0;
    }

    .contact_item_title {
        font-size: 14px;
        color: #1D2129;
    }

    .contact_text {
        font-size: 16px;
        color: #1D2129;
        font-weight: 600;
    }

    .contract_icon {
        width: 35px;
        height: 35px;
        margin: 0 10px 0 0;

    }

    .image_item {
        margin: 0 28px 0 0;
    }

    .image_item:last-of-type {
        margin-right: 0;
    }

    .image_item {
        font-size: 14px;
    }

    .contact_img {
        width: 175px;
        height: 175px;
        margin: 0 0 17px 0;
    }

    .address_wrap {
        padding: 88px 0;
    }

    .address_list {
        margin: 28px 0 0 0;
        grid-gap: 28px;
        padding: 0 210px;
    }

    .address_item {
        border-radius: 10px;
    }

    .location_content {
        padding: 14px 8px
    }

    .address_title {
        font-size: 16px;
        font-weight: 550;
    }

    .location_item {
        margin: 14px 0 0 0;
        font-size: 12px;
    }

    .location_icon {
        width: 18px;
        height: 18px;
        margin: 4px 4px 0 0;
    }

}