.topic-detail {
    padding-top: 48px;
    background-color: #f6f6f6;
}

.topic-section__title-wrapper {
    margin-bottom: 32px;
}

.topic-section__title-wrapper.topic-detail::before {
    display: block;
    height: 2px;
    width: 100%;
    content: "";
    position: absolute;
    top: 0px;
    left: 0px;
    background: linear-gradient(to right, #56c0ce, rgba(20, 20, 20, 0.1), rgba(20, 20, 20, 0.1));
}

.topic-detail h2 {
    font-size: 26px;
    font-weight: 600;
    color: #56c0ce;
    line-height: 1.5;
}

.topic-detail h3 {
    font-size: 18px;
    font-weight: 600;
    line-height: 3;
}

.topic-date {
    padding: 10px 0px 10px 0px;
}

.topic-subtitle {
    font-size: 16px;
    font-weight: 600;
    line-height: 2;
}

.topic-detail-section {
    display: flex;
    justify-content: center;
}

.topic-detail-section__inner {
    max-width: 900px;
    padding: 30px;
}

.topic-detail-section__sepalator {
    margin: 2rem 0;
    border: none;
    border-bottom: 1px solid #56c0ce;
}

.topic-detail-section .topic-detail-section__ttl {
    font-size: 22px;
    line-height: 1.6;
    font-weight: bold;
    margin-bottom: 0.5em;
    color: #56c0ce;
}

@media screen and ( max-width: 480px) {
    .topic-detail-section__inner {
        max-width: 900px;
        padding: 30px 0;
    }
}

.topic-detail-section__text {
    font-size: 16px;
    line-height: 2.5;
    padding-left: 10px;
}

.topic-detail-section__text a {
    color: #56c0ce;
}
.topic-detail-section__text strong {
    font-weight: 700;
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 0.2em;
    text-decoration-color: #999;
}
.topic-detail-section__text b {
    font-weight: 700;
}

.topic-detail-section__box {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-flow: column;
    padding: 30px 0px 30px 0px;
}

.topic-detail-section__image {
    width: 70%;
}

.topic-detail-section__annotation {
    display: flex;
    align-items: center;
}

.topic-detail-section__annotation h4 {
    padding-top: 10px;
}

.topic-detail-section__table {
    border-collapse: collapse;
    width: 100%;
    table-layout: fixed;
    margin: 20px 0px 20px 0px;
}

.topic-detail-section__table_cell {
    border: solid 1px #ccc;
    padding: 10px;
    line-height: 2;
}

.topic-detail-section__table_cell a {
    color: #56c0ce;
    word-break: break-all;
}

.topic-detail-section__table_cell a:hover {
    text-decoration: underline;
}

.topic-detail-section__table_cell strong {
    font-weight: 700;
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 0.2em;
    text-decoration-color: #999;
    /* background: linear-gradient(transparent 60%, rgba(255, 255, 100, 0.5) 60%); */
}

.topic-detail-section__table_cell b {
    font-weight: 700;
}

.topic-movie-youtube-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    /*アスペクト比 16:9の場合の縦幅*/
    height: 0;
    overflow: hidden;
}

.topic-movie-youtube-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.topic-page {
    display: flex;
    justify-content: center;
}

.topic-page ul {
    display: flex;
}

.topic-page li {
    width: 20px;
}

.topic-page a {
    color: white;
}

.topic-detail-map {
    width: 90%;
    height: 500px;
}

@media screen and (max-width: 1024px) {
    .topic-detail-map {
        width: 100%;
        height: 50vw;
        min-height: 300px;
    }
}

.footer {
    margin-top: 0px;
}