@media (min-width:1200px) {
    .content-m{
        display: none !important;
    }
}
@media (min-width:690px) and (max-width:1024px) {
    .intro_sub
    ,main
    ,.objngoal_container
    ,.content-m
    {
        width: 100% !important;
    }
    .content{
        display: none !important;
    }

    .content-m{
        width: 100vw;
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 20px;
        justify-content: center;
        margin-bottom: 80px;
    }
    .m_container, .m_container2, .m_container3 {
        border-radius: 12px;
        width: 90vw;
        background-color: #F5FBFA;
        padding: 20px 12px;
        display: flex;
        flex-direction: column;
        gap: 24px;
        justify-content: space-between;
    }
    .m_container{
        /* min-height: 308px;
        height: auto; */
        /* aspect-ratio: 330/308; */
    }
    .m_container2{
        /* min-height: 632px;
        aspect-ratio: 330/632; */
    }
    .m_container3{
        height: 432px;
    }
    .m_btncntr {
        display: flex;
        flex-direction: column;
    }

    /* 두 번째 요소와 세 번째 요소 사이의 간격 */
    .m_btncntr + .m_btncntr {
        margin-top: 8px;
    }

    .m_btncntr{
        border-radius: 12px;
        display: flex;
        padding: 8px 16px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        align-self: stretch;
        border-radius: 12px;
        color: white;
        background: var(--primary-500, #009591);
        /* shadow */
        box-shadow: 0px 0px 20px 0px rgba(177, 201, 201, 0.35);
    }

    .m_title {
        color: var(--primary-500);
        text-align: center;
    }

    .m_item {
        display: flex;
        flex-direction: column;
    }

    .m_year {
        text-align: center;
    }
    .m_year:has(+ .m_btncntr){
        margin-bottom: 20px;
    }
    .m_description {
        text-align: center;
        font-weight: 400;
    }
    .m_year + .m_btncntr:first-of-type{
        gap: 20px;
    }
    .m_description + .m_btncntr
    {
        margin-top: 20px;
    }
}
@media (max-width: 768px) {
    .wrapper, 
    section, 
    .main, 
    .colortitle, 
    .content, 
    .section1_t_container
    ,.objngoal_container
    ,.intro_sub
    {
        width: 100% !important;
    }
    main{
        /* margin-bottom: 80px !important; */
    }
    .intro_content, .content{
        display: none !important;
    }
    .section1_t_container{
    
    }
    section {
        margin-top: 40px !important;
        min-height: unset !important;
    }
    main{
        gap: 12px !important;
        padding : 0px calc(16/375 * 100vw)  !important;
    }
    .mobile_desc{
        margin-top: 20px !important;
    }
    .content-m{
        width: 100vw;
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 20px;
        justify-content: center;
        margin-bottom: 80px;
    }
    .backimg{
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 20px;
    }
    .objngoal_container{
        margin-bottom: 80px !important;
        flex-direction: column !important;
    }
    .objngoal_container > .left {
        display: flex;
        justify-content: center;
    }
    
    .objngoal_container > .left img{
        width: 80vw !important;
        height: auto !important;
        aspect-ratio: 343/356 !important;
    }
    .objngoal_container > .right {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .txtrow_container{
        width: 90%;
    }
    .txtrow_container .objnumber_desc{
        padding-left:28px !important;
        font-size:14px;
        line-height:24px;
    }
    .intro_sub{
        line-height: unset !important;
    }
    section:first-child{
        margin-bottom: unset !important;
    }
    section:nth-child(3){
        margin-bottom: unset !important;
    }
    .m_container, .m_container2, .m_container3 {
        border-radius: 12px;
        width: 90vw;
        background-color: #F5FBFA;
        padding: 20px 12px;
        display: flex;
        flex-direction: column;
        gap: 24px;
        justify-content: space-between;
    }
    .m_container{
        /* min-height: 308px;
        height: auto; */
        /* aspect-ratio: 330/308; */
    }
    .m_container2{
        /* min-height: 632px;
        aspect-ratio: 330/632; */
    }
    .m_container3{
        height: 432px;
    }
    .m_btncntr {
        display: flex;
        flex-direction: column;
    }

    /* 두 번째 요소와 세 번째 요소 사이의 간격 */
    .m_btncntr + .m_btncntr {
        margin-top: 8px;
    }

    .m_btncntr{
        border-radius: 12px;
        display: flex;
        padding: 8px 16px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        align-self: stretch;
        border-radius: 12px;
        color: white;
        background: var(--primary-500, #009591);
        /* shadow */
        box-shadow: 0px 0px 20px 0px rgba(177, 201, 201, 0.35);
    }

    .m_title {
        color: var(--primary-500);
        text-align: center;
    }

    .m_item {
        display: flex;
        flex-direction: column;
    }

    .m_year {
        text-align: center;
    }
    .m_year:has(+ .m_btncntr){
        margin-bottom: 20px;
    }
    .m_description {
        text-align: center;
        font-weight: 400;
    }
    .m_year + .m_btncntr:first-of-type{
        gap: 20px;
    }
    .m_description + .m_btncntr
    {
        margin-top: 20px;
    }
}
@media (min-width:375px) and (max-width:1024px) {
     .back1
    ,.back2
    ,.back3{
        border-radius: 12px;
        display: flex;
        justify-content: center;
        width: 90vw !important;
        background-color: var(--primary-50) !important;
    }
}
@media(min-width: 768px) {
    .mobile_desc, .section_desc-m{
        display: none !important;
    }
}
    .wrapper{
        width: 100%;
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    section{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 100%;
        min-height: 528px;
        height: auto;
    }
    section:first-child{
        margin-top: 80px;
        height: auto;
        min-height: unset;
        margin-bottom: 100px ;
    }
    section:last-child{
        height: auto !important;
    }
    .intro_sub{
        line-height: 48px;
        margin-top: 12px;
    }
    .intro_content{
        margin-top: 40px;
    }
    .main{
        width: 1200px;
        display: flex;
        flex-direction: column;
    }
    .colortitle{
        width: 100%;
        color:var(--primary-500);
    }
    .nocontent{
        width:  1200px;
        height: 360px;
        background-color: var(--gray-100);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .content{
        margin-top: 8px;
        width:  1200px;
        height: auto !important;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
    }
    .content-row{
        width: 1200px;
        height: 121px;
        display: flex;
        flex-direction: row;
    }
    .time-ele{
        /* position: relative; */
        margin-right: 53px;
        width: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .year{
        display: flex;
        margin-right: 47px;
        padding-bottom: 2px;
    }
    .todoing{
        margin-top: 6px;
        width: 209px;
        height: auto;
    }
    .business-container{
        width: 588px;
        height: auto;
        min-height: 88px;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    .business-none,
    .business-content{
        width: 588px;
        height: 44px;
        border-radius: 12px;
    }
    .business-content{
        display: flex;
        align-items: center;
        background-color: var(--primary-500);
    }
    .business-content > span:first-child{
        width: 200px !important;
    }
    .business-content > *:first-of-type{
        color : white;
        padding-left : 24px;
    }
    
    .business-content > *{
        color : white;
    }
    .business-none{
        background-color: white;
    }
    .effect-container{
        position: absolute;
        right: 0px;
        width: 190px;
        height: 1240px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 20px;
    }
    .effect-container > *{
        background-color: var(--primary-50);
        color: var(--primary-500);
        border-radius: 12px;
    }
    .effect-ele{
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .effect-ele:first-child {
        width: 180px;
        height: 444px;
    }
    .effect-ele:nth-child(2){
        width: 180px;
        height: 460px;
    }
    .effect-ele:nth-child(3){
        width: 180px;
        height: 360px;
    }
    .objngoal_container {
        display: flex;
        gap: 60px;
        width: 1200px;
        height: auto;
        margin-bottom: 120px;
        margin-top: 20px;
    }

    .objngoal_container > .left {
        flex: 3.5;
    }
    .objngoal_container > .left img{
        width: 486px;
        height: 504px;
    }

    .objngoal_container > .right {
        flex: 6.5;
        display: flex;
        flex-direction: column;
        gap: 24px;
    }
    .txtrow_container{
        display: flex;
        flex-direction: column;
        gap: 4px;
    }
    .txtrow_container .objnumber{
        color: var(--primary-500);
    }
    .txtrow_container .objnumber_desc{
        padding-left : 30px;
    }
    section:nth-child(3){
        margin-bottom: 120px;
    }
    .timeline_topline{
        display:flex;justify-content: center;align-items: center; width: 1px;height: 8px;background: #D9D9D9;
    }
    .timecircle{
        width: 20px;height: 20px;background-color:#C5C8CB;border-radius: 48px;
    }
    .timeline{
        width: 1px;height: 93px;background: #D9D9D9;
    }