#top {
    background-image: url(/assets/img/common/bg_01.png);
    z-index: 2;
}

#concept {
    position: relative;
}

#concept::before {
    position: absolute;
    display: block;
    content: "";
    background-color: var(--c-bg);
    width: 60vw;
    bottom: 30%;
    box-shadow: var(--shadow);
    left: -10rem;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    z-index: -999;
}

#concept .flex {
    gap: 4rem;
    align-items: start;
}

#concept .flex>img {
    width: 45%;
}

#concept .text-content {
    width: 55%;
}

#concept strong {
    margin-bottom: 1em;
}

#concept .text-content div {
    line-height: 1.8em;
}

#concept .container .img-wrap {
    width: 40%;
    transform: translateY(-5%);
}

#features li {
    background-color: var(--c-bg);
    row-gap: 3rem;
    padding-block: 6rem;
    position: relative;
    border-radius: 5rem;
    box-shadow: var(--shadow);
    padding-inline: 2rem;
}

#features li:nth-child(n + 2) {
    margin-top: 4rem;
}

#features li span {
    position: absolute;
    font-size: clamp(3rem, 3vw, 4rem);
    top: 0;
    left: min(2vw, 2rem);
    color: var(--c-sub);
}

#features .img-wrap {
    width: 15%;
}

#features .img-wrap img {
    display: block;
    height: 8rem;
    pointer-events: none;
}

#features .text-content {
    width: 85%;
}

#features .en {
    border-bottom: 1px solid var(--c-sub);
    margin-bottom: 1rem;
}

#features h3 {
    margin-bottom: 1rem;
}

#message {
    margin-bottom: clamp(10rem, 12vw, 14rem)
}

#message .flex {
    gap: 4rem;
}

#message img {
    width: 40%;
    border-radius: 50%;
}

#message .text-content {
    width: 60%;
}

#message .name {
    color: var(--c-sub);
    text-align: end;
    margin-top: 1em;
}

@media screen and (max-width:992px) {

    #about .flex.flex-column-sp>*,
    #about .flex.flex-column-re-sp>* {
        width: 100%;
    }

    #concept {
        padding-bottom: 4rem;
    }

    #concept::before {
        width: 100vw;
        left: -20%;
        bottom: 0;
    }

    #concept .text-content br {
        display: none;
    }

    #concept .container .img-wrap {
        display: none;
    }

    #features li {
        padding-inline: 2rem;
        padding-block: 4rem;
    }

    #message img {
        max-width: 400px;
    }

    #message br {
        display: none;
    }
}