@charset "utf-8";
/* 
* {
    outline: 1px solid magenta;
} */

.conceptSec .innerWrap,
.companySec .innerWrap {
    max-width: 1520px;
    width: 90%;
    margin: 0 auto;
    padding: 150px 0 250px;
}

/* --- ProjectSec --- */
.projectSec .innerWrap {
    max-width: 1050px;
    width: 85%;
    margin: 0 auto;
    padding: 200px 0 0 0;
}

.messageSec .innerWrap {
    max-width: 1220px;
    width: 85%;
    margin: 0 auto;
    padding: 150px 0 200px;
}

.collaboSec .innerWrap {
    max-width: 1800px;
    width: 98%;
    margin: 0 auto;
    padding: 200px 0 250px;
}


/* ---concept section--- */
.conceptSec .conceptDiv {
    text-align: center;
}

.conceptSec .concept1 {
    font-size: 32px;
    line-height: 2.5em;
    margin-bottom: 1em;
}

.conceptSec .concept2 {
    font-size: 16px;
    line-height: 2em;
    margin-bottom: 5em;
}

.conceptSec .concept3 {
    width: 200px;
    margin-bottom: 100px;
}

.conceptSec .concept_img {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    margin: 80px 0;
}

.conceptSec .concept_img img {
    width: 700px;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    max-width: 90%;
}

.conceptSec .img01 {
    text-align: left;
    padding-left: 10%;
    /* transform: translate(5%); */
    /* position: relative;
    left: 5%; */
    /* margin-left: 150px; */
}

.conceptSec .img02 {
    text-align: right;
    padding-right: 10%;
    /* position: relative;
    left: 40%; */
    /* top: -20%; */
    /* transform: translateY(-20%);
    margin-left: auto; */
}

.conceptSec .img03 {
    text-align: left;
    padding-left: 20%;
    /* object-position: left 35%; */
    /* position: relative;
    left: 15%; */
    /* margin-left: 200px; */
    /* transform: translateX(10%) translateY(-40%); */
}

/* ------ */


/* ---message section--- */
/* .messageSec {
    background: var(--maincolor);
} */
.messageSec {
    background-color: var(--maincolor);
    background-image: url(../images/about/bg.jpg);
    background-blend-mode: multiply;
    /* 色とテクスチャをなじませる */
    background-size: 600px auto;
    /* filter: brightness(120%); */
}

.messageSec h4 {
    font-size: 24px;
    font-weight: semibold;
    margin-bottom: 1em;
}

.messageSec p {
    margin-bottom: 1em;
}

.flex_message {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3em;
}

.flex_message_l {
    width: 60%;
    min-width: 600px;
}

.messageSec img {
    aspect-ratio: 1;
    width: 30%;
    min-width: 250px;
    object-fit: cover;
}

/* ------ */


/* --- Project section  --- */
.flex_project {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3em;
    margin-bottom: 100px;
}

.flex_projectText {
    width: 60%;
    min-width: 600px;
}

.flex_projectText h4 {
    font-size: 28px;
    margin-bottom: 4px;
    margin-bottom: 1.2em;
}

.flex_projectText p {
    line-height: 1.5;
    margin-bottom: 1.2em;
}

/* ------ */


/* ---collaboration section--- */
.collaboSec .flex_collabo {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 3%;
}

.collaboSec article {
    flex-basis: 800px;
    background: var(--maincolor);
    padding: 4em 4em;
    margin-bottom: 40px;

    display: flex;
    justify-content: center;
    gap: 5%;
}

.flex_collabo article:nth-child(n+5) {
    opacity: 0;
    height: 0;
    margin-bottom: 0;
    padding: 0;
    overflow: hidden;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.flex_collabo article.show {
    opacity: 1;
    pointer-events: auto;
    height: auto;
    padding: 4em 4em;
    margin-bottom: 40px;
}

.collaboSec article img {
    aspect-ratio: 1;
    width: 40%;
    object-fit: cover;
    align-self: center;
}

.collaboSec .flex_collaboArticle {
    flex-basis: 70%;
    align-self: center;
}

.flex_collaboArticle h4 {
    font-size: 22px;
    text-align: center;
    line-height: 1.1;
    margin-bottom: 4px;
}

.flex_collaboArticle h4 span {
    font-size: 18px;
}

.flex_collaboArticle p {
    text-align: justify;
}

.collaboSec .collaboPrtnr {
    font-size: 12px;
    text-align: center;
    margin-bottom: 2em;
}

.collaboSec p {
    margin-bottom: 1em;
}

.collaboSec .btn_article {
    text-align: center;
    transition: all 0.3s;
}

.collaboSec .btn_article:hover {
    color: #8e8e8e;
}

.collaboSec .btn_collabo {
    text-align: right;
    margin-bottom: 130px;
    transition: all 0.3s;
}

.collaboSec .btn_collabo:hover {
    color: #8e8e8e;
}

.collaboSec .btn_collabo button {
    position: relative;
    margin-right: 157px;
}

.collaboSec .btn_collabo button::after {
    content: url(../images/arrow.svg);
    position: absolute;
    right: -110px;
    width: 60%;
    top: -14px;
}

.collaboSec .btn_contact {
    text-align: center;
}

.collaboSec .contactBtn {
    background: var(--accentcolor);
    font-size: 16px;
    color: white;
    width: 300px;
    height: 70px;
    transition: background-color 0.3s;
}

.collaboSec .contactBtn:hover {
    background-color: #005f73;
}

/* ------ */


/* ---company section--- */
.companySec .flex_company {
    display: flex;
    flex-wrap: wrap;
    max-width: 800px;
    width: 95%;
    margin: 0 auto;
}

.companySec .flex_company dt {
    flex-basis: 40%;
    line-height: 2;
    padding: 22px 0 22px 30px;
    border-bottom: 1px solid #dadada;
}

.companySec .flex_company dd {
    flex-basis: 60%;
    line-height: 2;
    padding: 22px 30px 22px 0;
    border-bottom: 1px solid #dadada;
}

.companySec .flex_company dd a:hover {
    color: var(--accentcolor);
    text-decoration: underline;
    transition: all .3s ease;
}

/* ------ */


/* ---responsible design for iPad pro--- */
@media screen and (max-width: 1024px) {

    .innerWrap {
        max-width: 730px;
        width: 95%;
    }

    .conceptSec .concept1 {
        font-size: 30px;
    }

    .conceptSec .concept_img {
        margin: 40px 0;
    }

    .conceptSec .concept_img img {
        width: 400px;
    }

    .flex_message {
        flex-direction: column;
        text-align: center;
    }

    .flex_message_l {
        width: 100%;
    }

    .flex_message_l p {
        text-align: left;
    }



    .messageSec .innerWrap {
        max-width: 700px;
        width: 85%;
        margin: 0 auto;
        padding: 150px 0 200px;
    }

    .messageSec img {
        width: 60%;
    }



    .collaboSec article {
        flex-basis: 90%;
    }

    .collaboSec .btn_article {
        margin-top: 10px;
    }

    .collaboSec .btn_collabo {
        margin: 20px 0 130px;
    }

    .collaboSec .btn_collabo button::after {
        width: 50%;
        right: -85px;
        top: -10px;
    }
}