@charset "utf-8";

.u-ib {
    display: inline-block;
}

.under_mv_area .contents .txt_area:before {
    content: 'CASE STUDY';
}

.p-case-container {
    padding: 0 20px;
    max-width: 1140px;
}

.p-case-container .ttl {
    margin-bottom: 50px;
}
.p-case-container .ttl + p.txt {
    text-align: center;
    line-height: 2;
    letter-spacing: 0.05em;
}

.p-case-container__link {
    margin-top: 60px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.p-case-container__link-item a {
    border-radius: calc(infinity * 1px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 2.0rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    height: 80px;
    position: relative;
}

.p-case-container__link-item.--case01 a {
    background-color: #DDF1FD;
}

.p-case-container__link-item.--case02 a {
    background-color: #E1EECD;
}

.p-case-container__link-item.--case03 a {
    background-color: #F7EC9C;
}

.p-case-container__link-item.--case04 a {
    background-color: #F7DCDD;
}

.p-case-container__link-item a::before {
    content: '';
    border-radius: 50%;
    background-color: #fff;
    position: absolute;
    top: 0;
    bottom: 0;
    right: 25px;
    margin: auto;
    width: 30px;
    height: 30px;
}

.p-case-container__link-item a::after {
    content: '';
    position: absolute;
    top: -4px;
    bottom: 0;
    right: 35px;
    margin: auto;
    transform: rotate(45deg);
    width: 10px;
    height: 10px;
}

.p-case-container__link-item.--case01 a::after {
    border-bottom: 2px solid #0C99EF;
    border-right: 2px solid #0C99EF;
}

.p-case-container__link-item.--case02 a::after {
    border-bottom: 2px solid #90C31F;
    border-right: 2px solid #90C31F;
}

.p-case-container__link-item.--case03 a::after {
    border-bottom: 2px solid #EBD749;
    border-right: 2px solid #EBD749;
}

.p-case-container__link-item.--case04 a::after {
    border-bottom: 2px solid #E6888A;
    border-right: 2px solid #E6888A;
}

.p-case-container__wrapper {
    scroll-margin-top: 80px;
}

.p-case-container__wrap {
    border-top: solid 1px #ccc;
    margin-top: 80px;
    padding-top: 80px;
}
.p-case-container__head {
    display: grid;
    gap: 10px 30px;
    margin-bottom: 30px;
}

.p-case-container__head .num {
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-family: roboto-slab, serif;
    font-size: 3.6rem;
    line-height: 1;
    width: 110px;
    height: 110px;
}

.p-case-container__head .num small {
    font-size: 1.4rem;
}

.p-case-container__wrapper#case01 .p-case-container__head .num {
    background-color: #0C99EF;
}

.p-case-container__wrapper#case02 .p-case-container__head .num {
    background-color: #90C31F;
}

.p-case-container__wrapper#case03 .p-case-container__head .num {
    background-color: #EBD749;
}

.p-case-container__wrapper#case04 .p-case-container__head .num {
    background-color: #E6888A;
}

.p-case-container__head .category {
    border-radius: calc(infinity * 1px);
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.05em;
    padding: 10px 20px;
    max-width: max-content;
}

.p-case-container__wrapper#case01 .p-case-container__head .category {
    background-color: #DDF1FD;
}

.p-case-container__wrapper#case02 .p-case-container__head .category {
    background-color: #E1EECD;
}

.p-case-container__wrapper#case03 .p-case-container__head .category {
    background-color: #F7EC9C;
}

.p-case-container__wrapper#case04 .p-case-container__head .category {
    background-color: #F7DCDD;
}

.p-case-container__head .title {
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.05em;
}

.p-case-container__txt {
    display: grid;
    grid-template-columns: 65fr 35fr;
    margin-bottom: 92px;
}

.p-case-container__txt .txt {
    letter-spacing: 0.05em;
    line-height: 2;
    max-width: 620px;
}

.p-case-container__txt .wrap {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.p-case-container__txt .icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    letter-spacing: 0.05em;
    line-height: 1.8;
    width: calc(50% - 10px);
}

.p-case-container__txt .icon img {
    width: 100px;
    margin-bottom: 10px;
}

.p-case-container__txt .icon .info {
    text-align: left;
}

.p-case-container__flow {
    display: grid;
    gap: 40px;
    grid-template-columns: repeat(3, 1fr);
}

.p-case-container__flow-item {
    border-radius: 20px;
    padding: 110px 20px 30px;
    position: relative;
}

.p-case-container__wrapper#case01 .p-case-container__flow-item {
    background-color: #DDF1FD;
}

.p-case-container__wrapper#case02 .p-case-container__flow-item {
    background-color: #E1EECD;
}

.p-case-container__wrapper#case03 .p-case-container__flow-item {
    background-color: #F7EC9C;
}

.p-case-container__wrapper#case04 .p-case-container__flow-item {
    background-color: #F7DCDD;
}

.p-case-container__flow-item + .p-case-container__flow-item::before {
    content: '';
    background-color: #B7B7B7;
    clip-path: polygon(80% 50%, 0 0, 0 100%);
    position: absolute;
    top: 0;
    bottom: 0;
    left: -28px;
    width: 20px;
    height: 20px;
    margin: auto;
}

.p-case-container__flow-item .img {
    position: absolute;
    top: -42px;
    left: 0;
    right: 0;
    margin: auto;
    max-width: 220px;
    width: 90%;
}

.p-case-container__flow-item .txt {
    font-size: 1.3rem;
    letter-spacing: 0.05em;
    line-height: 1.8;
}



@media screen and (min-width: 768px) {
    .p-case-container__head {
        grid-template-columns: 110px 1fr;
        align-items: center;
    }

    .p-case-container__head .num {
        grid-column: 1 / 2;
        grid-row: 1 / 3;
    }
}

@media screen and (max-width: 768px) {
    .p-case-container .ttl {
        margin-bottom: 30px;
    }

    .p-case-container__link {
        grid-template-columns: 1fr;
        margin-top: 40px;
    }

    .p-case-container__link-item a {
        font-size: 1.6rem;
        height: 70px;
    }
    
    .p-case-container__link-item a::before {
        right: 20px;
        width: 20px;
        height: 20px;
    }
    
    .p-case-container__link-item a::after {
        top: -3px;
        right: 26px;
        width: 8px;
        height: 8px;
    }

    .p-case-container__wrap {
        padding-top: 60px;
        margin-top: 60px;
    }

    .p-case-container__head .num {
        font-size: 2.3rem;
        width: 70px;
        height: 70px;
        margin-bottom: 10px;
    }

    .p-case-container__head .num small {
        font-size: 0.8rem;
    }

    .p-case-container__head .category {
        font-size: 1.2rem;
    }

    .p-case-container__head .title {
        font-size: 1.8rem;
    }

    .p-case-container__txt {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .p-case-container__txt .wrap {
        grid-row: 1 / 2;
        flex-direction: column;
        align-items: flex-start;
        padding: 0 15px;
    }

    .p-case-container__txt .icon {
        display: grid;
        grid-template-columns: 80px 1fr;
        align-items: center;
        gap: 0 20px;
        text-align: left;
        width: 100%;
    }

    .p-case-container__txt .icon img {
        width: 80px;
        margin: 0;
        grid-row: 1 / 3;
    }

    .p-case-container__txt .icon .name.--row {
        grid-row: 1 / 3;
    }

    .p-case-container__flow {
        grid-template-columns: 1fr;
        gap: 82px;
    }

    .p-case-container__flow-item + .p-case-container__flow-item::before {
        left: 0;
        right: 0;
        bottom: inherit;
        top: -67px;
        clip-path: polygon(100% 0, 0 0, 50% 80%);
    }
}