body {
    background: linear-gradient(180deg, #F7F7F7 30%, #FFF 70%);
}
h1.article-title {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.6;
}
.article-date {
    display: block;
    opacity: .6;
    margin: 16px 0;
}
.breadcrumbs {
    opacity: .6;
    margin-bottom: 48px;
}
.chevron {
    margin: 0 6px;
}
.article-thumbnail-wrapper {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    position: relative;
    background-color: #fff;
}
.article-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
}
.article-content {
    margin-top: 48px;
}
/* 記事本文内の装飾 */
.article-content > p > a {
    text-decoration: underline;
}
.article-content > p > em {
    font-style: italic!important;
}
.article-content > ul {
    list-style: disc;
    padding-left: 2rem;
}
.article-content > ul > li > ul {
    list-style: disc;
    padding-left: 2rem;
}

@media screen and (max-width: 576px) {
    .breadcrumbs {
        margin-bottom: 12px;
    }
    h1.article-title {
        font-size: 2rem;
    }
    .article-date {
        margin: 12px 0;
    }
    .article-content {
        margin-top: 24px;
    }
}