.aboutus-page{
    background-color: var(--colormain2);
}

.mea_top_link{
    position: fixed;
    top: 150px;
    right: 2%;
    z-index: 0;
    max-width: 510px;
    width: 100%;
    z-index: 10;
}
.mea_top_link section{
    background-color: var(--colorwhite);
    border: 1px solid var(--colorsub1);
    border-radius: 15px;
    padding: 15px 3%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 0 0 auto;
}
.mea_top_link section a{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    font-size: var(--f16);
    min-width: fit-content;
    margin: 0 15px;
    color: #707070;
}
.mea_top_link section a::before{
    content: '';
    min-width: 10px;
    height: 10px;
    border-radius: 500px;
    background-color: var(--colorsub1);
    margin: 0 10px 0 0;
    opacity: 0;
    transition: all .4s;
}
.mea_top_link section a:hover{
    color: var(--colorsub2);
}
.mea_top_link section a.active{
    color: var(--colortext1);
}
.mea_top_link section a.active::before{
    opacity: 1;
    transition: all .4s;
}

.mea_link{
    position: absolute;
    top: -12vw;
    left: 0px;
    z-index: -1;
    height: 100%;
}

.mea_a{
    padding: calc(5vw + 70px) 0;
    position: relative;
}
.mea_a dl{
    max-width: calc(1200px + 10%);
    padding: 0 5%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.mea_a dl dt{
    font-size: var(--f36);
    color: var(--colorsub3);
    font-family: var(--fontMerr);
    min-width: fit-content;
}
.mea_a dl dd{
    width: 510px;
    margin: 0 0 0 30px;
}
.mea_a dl dd p{
    font-size: var(--f16);
    color: var(--colorsub3);
}
.mea_video{
    margin: calc(2vw + 70px) auto 0;
    text-align: center;
    position: relative;
    cursor: pointer;
}
.mea_video::before{
    content: 'Play';
    font-size: var(--f16);
    color: var(--colorwhite);
    font-family: var(--fontMerr);
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100px;
    height: 100px;
    border-radius: 500px;
    border: 2px solid var(--colorwhite);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.mea_video .video{
    width: 85%;
    margin: auto;
    overflow: hidden;
    border-radius: 20px;
}
.mea_video.fullvideo .video{
    width: 100%;
    border-radius: 0px;
}
.mea_video.fullvideo::before{
    display: none;
}
.mea_b{
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: clamp(0px, 60vw, 900px);
    position: relative;
    z-index: 1;
    overflow: hidden;
}
.mea_b_le{
    background-color: var(--colormain1);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 100px 5%;
}
.mea_b_le > img{
    max-width: 350px;
    width: 80%;
    margin: auto;
    filter: invert(49%) sepia(0%) saturate(2575%) hue-rotate(74deg) brightness(86%) contrast(85%);
    -webkit-filter: invert(49%) sepia(0%) saturate(2575%) hue-rotate(74deg) brightness(86%) contrast(85%);
}
.mea_b_ri{
    background-color: var(--colorwhite);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 70px 5%;
}
.mea_b_ri dl{
    max-width: 500px;
    width: 100%;
}
.mea_b_ri dl dt img{
    width: 100%;
}
.mea_b_ri dl dd{
    margin: calc(2vw + 30px) 0 0;
}
.mea_b_ri dl dd p{
    font-size: var(--f16);
    color: var(--colorsub3);
    line-height: 170%;
}

.mea_c{
    padding: calc(2vw + 50px) 5%;
    position: relative;
    z-index: 1;
    overflow: hidden;
}
.mea_c > h4{
    max-width: 1100px;
    margin: 0 auto 50px;
    font-size: var(--f32);
    color: var(--colorsub3);
    font-family: var(--fontMerr);
    font-weight: normal;
}
.mea_c01{
    max-width: 1100px;
    margin: auto;
    position: relative;
    z-index: 1;
    min-height: 700px;
}
.mea_c01_a{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    z-index: 1;
    width: 45%;
    transition: 0s;
}
.mea_c01_a:nth-of-type(1){
    position: absolute;
    top: 0px;
    left: 0px;
}
.mea_c01_a:nth-of-type(2){
    position: absolute;
    top: 0px;
    right: 0px;
}
.mea_c01_a::before{
    content: '';
    width: 0%;
    height: 1000%;
    background-color: var(--colorsub2);
    position: absolute;
    top: -100%;
    left: -100%;
    opacity: 0;
    z-index: -1;
}
.mea_c01_a dl{
    position: absolute;
    right: 15px;
    bottom: 10px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.mea_c01_a dl dd{
    font-size: var(--f16);
    color: var(--colorwhite);
    display: none;
    margin: 0 10px 0 0;
}
.mea_c01_a dl dt{
    font-size: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 50px;
    min-width: 50px;
    background-color: var(--colorsub2);
    border-radius: 500px;
    line-height: 0%;
    color: var(--colorwhite);
    font-weight: 100;
    font-family: none;
    cursor: pointer;
}
.mea_c01_a .mea_c01_a_img{
    max-width: 495px;
    width: 100%;
}
.mea_c01_a_img i{
    position: relative;
    z-index: 1;
    border-radius: 20px;
    overflow: hidden;
    display: block;
    margin: 0 0 30px;
    max-height: 620px;
}
.mea_c01_a .mea_c01_a_img i::before{
    content: '';
    width: 100%;
    height: 100%;
    background: url(../images/aboutus/mea_dchsu_after.jpg);
    background-position: top center;
    background-size: cover;
    z-index: -1;
    position: absolute;
    top: 0px;
    left: 0px;
}
.mea_c01_a:nth-of-type(2) .mea_c01_a_img i::before{
    background-image: url(../images/aboutus/mea_dclai_after.jpg);
}
.mea_c01_a_img section{
    padding:0 15px;
}
.mea_c01_a_img section h5{
    font-size: var(--f16);
    color: var(--colorsub2);
    font-weight: normal;
    margin: 0 0 10px;
}
.mea_c01_a_img section p{
    font-size: var(--f24);
    color: var(--colorsub3);
    font-weight: normal;
}
.changecolor dl dt{
    background-color: #515b37;
}
.changecolor .mea_c01_a_img section h5,
.changecolor .mea_c01_a_img section p{
    color: #515b37;
}
.changecolor::before{
    background-color: #515b37;
}
.changecolor .mea_c01_a_con h6{
    background-color: #C8CB86;
}
.mea_c01 .mea_c01_a_con{
    display: none;
    transition: 0s;
}
.mea_c01_a_con h5{
    font-size: var(--f24);
    color: var(--colorwhite);
    font-weight: normal;
}
.mea_c01_a_con h6{
    font-size: var(--f16);
    color: var(--colorsub3);
    max-width: fit-content;
    padding: 5px 15px;
    border-radius: 500px;
    background-color: var(--colormain1);
    font-weight: 500;
    margin: 30px 0;
}
.mea_c01_a_con p{
    font-size: var(--f16);
    color: var(--colorwhite);
    line-height: 180%;
    margin: 30px 0 0;
    font-weight: 300;
}
.mea_c01_a.active{
    width: 100%;
    transition: 0s;
}
.mea_c01_a.active .mea_c01_a_con{
    display: block;
    width: 100%;
    margin: 0 0 0 8%;
    transition: 0s;
}
.mea_c01_a.active:nth-of-type(2) .mea_c01_a_con{
    margin: 0 8% 0 0;
}

.mea_c01_a.active dl dd{
    display: block;
}
.mea_c01_a.active dl dt{
    transform: rotate(45deg);
    background-color: var(--colorwhite);
    color: var(--colortext1) !important;
    cursor: pointer;
}
.mea_c01_a.active::before{
    opacity: 1;
    width: 1000%;
    z-index: -1;
}
.mea_c01_a.active .mea_c01_a_img section *{
    color: var(--colorwhite) !important;
}
.mea_c01_a.active .mea_c01_a_img i::before{
    z-index: 2;
}

.mea_d{
    padding:calc(1vw + 70px) 0;    
    background-color: var(--colormain1);
    position: relative;
    z-index: 1;
}
.mea_d > h4{
    max-width: 1250px;
    width: 60%;
    margin: 0 auto 50px;
    font-size: var(--f32);
    color: var(--colorsub3);
    font-family: var(--fontMerr);
    font-weight: normal;
}
.mea_d .swiper{
    margin: 0 0 0 auto;
}
.mea_d .swiper-wrapper{
    height: unset;
}
.mea_d .swiper-backface-hidden .swiper-slide{
    max-width: 65vw;
    border-radius: 30px;
    overflow: hidden;
    line-height: 0px;
}
.mea_d .swiper-backface-hidden .swiper-slide img{
    line-height: 0px;
}
.mea_swiper_btn{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    width: 100%;
    max-width: fit-content;
    margin: 30px 8% 0 auto;
}
.mea_swiper_btn .swiper-button-prev,
.mea_swiper_btn .swiper-button-next{
    width: 70px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 500px;
    border: 1px solid #000;
    padding: 10px 5px;
    height: unset;
}
.mea_swiper_btn .swiper-button-next{
    position: unset;
    margin-top: unset;
    grid-column: 2/3;
    grid-row: 1/2;
} 
.mea_swiper_btn .swiper-button-prev{
    position: unset;
    margin-top: unset;
}
.mea_swiper_btn .swiper-button-next:after, 
.mea_swiper_btn .swiper-button-prev:after{
    content: '';
    font-family: unset;
    font-size: unset;
    background: url(../images/left_arrow.svg);
    background-position: center;
    background-size: 100%;
    width: 20px;
    height: 18px;
}
.mea_swiper_btn .swiper-button-next:after{
    transform: rotate(180deg);
}
.mea_swiper_btn .swiper-button-prev:hover, 
.mea_swiper_btn .swiper-button-next:hover{
    background-color: var(--colorwhite);
    border-color: #fff;
}

.mea_d01{
    max-width: 1250px;
    width: 60%;
    margin: 15px auto 0;
}
.mea_d01 > p{
    font-size: var(--f16);
    color: var(--colorsub3);
    max-width: 650px;
    line-height: 170%;
}
.mea_d01 > p:nth-of-type(1){
    margin: 0 0 40px;
}

@media (max-width: 1360px) {}
@media (max-width: 1024px) {}
@media (max-width: 968px) {
    .mea_c > h4{text-align: center;}
    .mea_c01{min-height: unset;padding: 0;}
    .mea_c01_a{width: 100%;max-width: fit-content;margin: auto;flex-direction: column;align-items: center;max-width: 490px;}
    .mea_c01_a:nth-of-type(1){position: relative;top: unset;left: unset;r: unset;margin: 0 auto 50px;}
    .mea_c01_a:nth-of-type(2){position: relative;top: unset;left: unset;r: unset;flex-direction: column-reverse;}
    .mea_c01_a .mea_c01_a_img i{max-height: 500px;}
    .mea_c01_a_img section{padding:0px;}
    .mea_c01_a.active:nth-of-type(1){margin: 0 auto;}
    .mea_c01_a.active{padding: 0 0 70px;}
    .mea_c01_a.active .mea_c01_a_con,
    .mea_c01_a.active:nth-of-type(2) .mea_c01_a_con{margin: 20px 0 0;}
    .mea_d > h4{text-align: center;width: 100%;}
    .mea_d01{width: 90%;margin: auto;}
    .mea_d01 > p{margin: 30px auto 0 !important;}
    .mea_swiper_btn{margin: 30px auto 0;}
}
@media (max-width: 768px) {}
@media (max-width: 600px) {
    .mea_top_link{position: unset;margin: 0 auto;overflow: scroll;padding: 0;overflow: scroll;}
    .mea_top_link section{min-width: 430px;margin: 0 15px;}
    .mea_a{padding:50px 0 70px;}
    .mea_a dl{flex-direction: column;max-width: fit-content;}
    .mea_a dl dt{text-align: center;}
    .mea_a dl dd{margin: 20px 0 0;width: 100%;}
    .mea_b{grid-template-columns: 1fr;}
    .mea_c01_a .mea_c01_a_img i{max-height: 400px;}
    .mea_d .swiper-backface-hidden .swiper-slide{max-width: 85%;}
    .mea_swiper_btn .swiper-button-prev, .mea_swiper_btn .swiper-button-next{width: 50px;}

}
@media (max-width: 425px) {
    .mea_video::before{width: 60px;height: 60px;}
    .mea_c01_a dl dt{font-size: 35px;height: 40px;min-width: 40px;}
}
@media (max-width: 375px) {
    .mea_d .swiper-backface-hidden .swiper-slide{max-width: 95%;}
}