.p-hgroup .colum-description {
    font-weight: 400;
    line-height: 2.0em;
    text-align: center;
}
@media screen and (max-width: 640px){
    .p-hgroup .colum-description {
        font-size: 4vw;
    }
    .ideal {
		text-align: left;
		font-size: 1em;
	}
    .idea-area ol {
        width: 100%;
        padding-left: 8vw;
        font-size: 3.8vw;
    }
}