.col2 .sum {
    margin: 0 auto;
    text-align: center;
}
@media screen and (min-width:768px) {
    .col3.index--area {
        justify-content: space-between;
    }
    .rn .index--box {
        padding: 10px 0;
    }
    .col3.index--area .index--box {
        width: calc(32%);
        display: flex;
        align-items: center;
    }
    .rn .index--box+.index--box {
        margin-top: 0;
    }
    .rn .index--box>dl dt {
        font-size: 1.5rem;
    }
    .rn .index--box>dl dt a {
        padding-right: 15px;
    }
    .rn .index--box>dl dt a:after {
        top: 0;
    }
    .rn .index--box:nth-child(odd) {
        margin-right: 0;
    }
    .rn .index--box:nth-child(2n) {
        margin-left: 0;
    }
}

@media screen and (max-width:767px) {
    .col2 .sum {
    margin: 0 auto;
    text-align: center;
    margin-top: 17px;
}
    .col2 .sum img {
    max-width: 100%;
    width: auto;
}
}