.AboutCard {
    width: 100%;
    background-color: #fff;
    display: grid;
    padding: 20px;
}

.AboutCard .About_Content {
    display: grid;
    justify-content: center;
    justify-items: center;
    gap: 40px;
    container-type: inline-size;
}

.AboutCard .TitleBox {
    display: grid;
    gap: 20px;
}

.AboutCard .Title {
    font-size: 23px;
    font-weight: bold;
    color: #333;
    text-align: center;
}

.AboutCard .SubTitle {
    font-size: 16px;
    color: #555;
    text-align: center;
}

.AboutCard .GridBox_3Columns {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    column-gap: 50px;
    row-gap: 30px;
    max-width: 1000px;
}

.AboutCard .GridBox_2Columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 40px;
    row-gap: 20px;
}

.AboutCard .GridItemBox {
    display: grid;
    justify-content: center;
    justify-items: center;
    gap: 10px;
}

.AboutCard .GridItemBox .ItemTitle {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    padding: 0px 10px;
    align-self: baseline;
    /* 黄色い蛍光ペンで下半分だけ下線を引いた装飾 */
    background-image: linear-gradient(transparent 50%, #ffff0077 50%);
}

.AboutCard .GridItemBox .ItemImg {
    height: 170px;
}

.AboutCard .GridItemBox .ItemText {
    font-size: 1em;
    color: #777;
}

.AboutCard .GridItemBox .ButtonLabel {
    color: #555;
    font-weight: 300;
    font-size: 0.9em;
}
.AboutCard .GridItemBox .ButtonLink {
    border-radius: 10px;
    border: 1px solid #777;
    padding: 10px 30px;
    text-decoration: none;
    color: #333;
    width: 100%;
    min-width: 280px;
    transition: all 0.3s;
}
.AboutCard .GridItemBox .ButtonLink:hover {
    background-color: #f0f0f0;
}

.AboutCard .GridItemBox .ButtonContentBox {
    display: grid;
    grid-template-columns: 1fr 30px;
    gap: 10px;
    justify-content: space-between;
    justify-items: center;
    align-items: center;
    font-size: 1.2em
}
.AboutCard .GridItemBox .ButtonText {}
.AboutCard .GridItemBox .ButtonIcon {}

@container (max-width: 660px) {
    .AboutCard .GridBox_3Columns {
        grid-template-columns: 1fr;
    }

    .AboutCard .GridBox_2Columns {
        grid-template-columns: 1fr;
    }
}