@media (max-width: 60em) {
    nav ul {
        padding-right: 4vw;
    }

    nav a {
        padding: 1.5rem 3vw;
    }

    #about {
        flex-direction: column-reverse;
    }

    .about_image {
        border-radius: 0;
        margin-bottom: 7vw;
    }

    .expertise_item {
        flex-basis: auto;
    }

    .work_group {
        margin: -1rem 0;
    }

    .work_item {
        border-radius: 2rem;
        margin: 1rem 0;
    }

    .work_item, .work_item:nth-child(3n+1) {
        flex-basis: 100%;
        padding-bottom: 100%;
    }

    .work_text {
        padding: 3vw;
    }

    #career {
        padding: 7vh 0 0;
    }

    #career .section_title {
        margin: 0 7vw;
    }

    .career_group {
        display: flex;
        align-items: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-left: 7vw;
    }

    .career_item:last-child {
        padding-right: 7vw;
    }

    .career_item, .career_item:nth-child(even) {
        flex-direction: column;
        flex: 1 0 90%;
    }

    .career_date, .career_text {
        text-align: left;
        padding-right: 10%;
        padding-bottom: 0;
    }

    .career_item:last-child .career_text {
        padding-right: 0;
    }

    .career_timeline {
        margin: 2rem 0;
    }

    .career_timeline:before {
        margin: 0;
    }

    .career_timeline:after {
        width: 100%;
        height: 3px;
        top: 50%;
        left: 0;
        transform: translateY(-50%);
    }

    .detail_mainimage {
        width: calc(100% + 14vw);
        max-width: none;
        margin-left: -7vw;
        border-radius: 0;
    }

    .detail_media {
        margin: 0 -7vw;
    }

}