/* ニュース一覧・詳細 共通 */

/* カテゴリフィルタ */
.news_filter {
    border-bottom: 1px solid var(--color-border);
}
.news_filter_inner {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}
.news_filter_btn {
    display: inline-block;
    padding: 10px 24px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-light);
    background-color: var(--color-bg-gray);
    border: 1px solid transparent;
    border-radius: 4px;
    transition: all var(--transition-fast);
}
.news_filter_btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.news_filter_btn.is_active {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

/* ニュースリスト */
.news_list {
    display: flex;
    flex-direction: column;
}
.news_item {
    display: grid;
    grid-template-columns: 110px auto 1fr;
    align-items: center;
    gap: 32px;
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border-light);
}
.news_item:last-child {
    border-bottom: none;
}
.news_date {
    font-family: var(--font-latin);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}
.news_category {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--color-primary);
    padding: 6px 12px;
    background-color: rgba(12, 51, 136, 0.06);
    text-align: center;
    letter-spacing: 0.05em;
    white-space: nowrap;
}
.news_category-media,
.news_category-cat2 {
    color: var(--color-category-media);
    background-color: rgba(107, 91, 149, 0.06);
}
.news_category-paper,
.news_category-cat3 {
    color: var(--color-category-paper);
    background-color: rgba(184, 134, 11, 0.06);
}
.news_title {
    font-size: 0.875rem;
    color: var(--color-text);
    transition: color var(--transition-fast);
}
.news_item:hover .news_title {
    color: var(--color-accent);
}

/* ページネーション */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding-top: 80px;
}
.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    font-family: var(--font-latin);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}
.pagination a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.pagination .current {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}
.pagination .dots {
    border: none;
    color: var(--color-text-muted);
}
.pagination .prev,
.pagination .next {
    letter-spacing: 0.04em;
}

/* 記事ヘッダー（詳細ページ） */
.article_header .container,
.article_section .container {
    max-width: 920px;
}
.article_header .section_header {
    margin-bottom: 24px;
}
.article_thumbnail {
    margin-top: 32px;
}
.article_thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

/* 記事メタ情報 */
.article_meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.article_date {
    font-family: var(--font-latin);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}
.article_category {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 500;
    padding: 3px 12px;
    border-radius: 2px;
    background-color: var(--color-primary);
    color: var(--color-bg);
}
.article_category-info {
    background-color: var(--color-primary);
    color: var(--color-bg);
}
.article_category-media,
.article_category-cat2 {
    background-color: var(--color-category-media);
    color: var(--color-bg);
}
.article_category-paper,
.article_category-cat3 {
    background-color: var(--color-category-paper);
    color: var(--color-bg);
}

/* 記事本文 */
.article {
    margin: 0 auto;
}
.article h2 {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 500;
    color: var(--color-text);
    margin: 48px 0 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
    letter-spacing: 0.04em;
}
.article h3 {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
    margin: 32px 0 16px;
}
.article p {
    font-size: 0.9375rem;
    line-height: 2.2;
    color: var(--color-text-light);
    margin-bottom: 24px;
}
.article ul,
.article ol {
    margin: 16px 0 24px;
    padding-left: 1.5rem;
}
.article li {
    font-size: 0.9375rem;
    line-height: 2;
    color: var(--color-text-light);
    list-style: disc;
}
.article blockquote {
    margin: 32px 0;
    padding: 24px 32px;
    background-color: var(--color-bg-gray);
    border-left: 3px solid var(--color-primary);
    font-size: 0.9375rem;
    line-height: 2;
    color: var(--color-text-light);
}

/* 関連ニュース */
.related_section {
    border-top: 1px solid var(--color-border);
}
.related_title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 32px;
}
.related_item {
    display: flex;
    align-items: baseline;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border-light);
}
.related_item:last-child {
    border-bottom: none;
}
.related_date {
    font-family: var(--font-latin);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}
.related_link {
    font-size: 0.875rem;
    color: var(--color-text);
    transition: color var(--transition-fast);
}
.related_link:hover {
    color: var(--color-accent);
}

/* 戻りリンク */
.back_link {
    text-align: center;
}
.back_link a {
    display: inline-flex;
    align-items: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    letter-spacing: 0.04em;
    transition: color var(--transition-fast);
}
.back_link a::before {
    content: '\2190';
    margin-right: 8px;
}
.back_link a:hover {
    color: var(--color-accent);
}

/* アーカイブセクション */
.news_archive {
    padding: 60px 0 80px;
}

/* 投稿がない場合 */
.news_empty {
    text-align: center;
    padding: 80px 0;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* PC */
@media screen and (min-width: 900px) {
    .news_filter_inner {
        padding: 40px 0;
    }
    .news_item {
        padding: 24px 16px;
    }
    .news_item:hover {
        background-color: var(--color-bg-gray);
    }
    .article_header {
        padding: 140px 0 60px;
    }
    .article_meta {
        padding: 0;
    }
    .article_section {
        padding: 0 0 80px;
    }
    .related_section {
        padding: 80px 0;
    }
    .back_link {
        padding-bottom: 80px;
    }
}

/* SP */
@media screen and (max-width: 899px) {
    .news_filter_inner {
        padding: 24px 0;
    }
    .news_filter_btn {
        padding: 8px 16px;
        font-size: 0.75rem;
    }
    .news_archive {
        padding: 40px 0 60px;
    }
    .news_item {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 20px 0;
    }
    .news_category {
        justify-self: start;
    }
    .news_title {
        font-size: 0.8125rem;
    }
    .pagination {
        padding-top: 48px;
        gap: 4px;
    }
    .pagination a,
    .pagination span {
        min-width: 36px;
        height: 36px;
        font-size: 0.75rem;
    }
    .article_header {
        padding: 100px 0 40px;
    }
    .article_section {
        padding: 0 0 48px;
    }
    .article h2 {
        font-size: 1.125rem;
        margin: 32px 0 16px;
    }
    .article p {
        font-size: 0.875rem;
    }
    .article blockquote {
        padding: 20px 24px;
    }
    .related_section {
        padding: 48px 0;
    }
    .related_item {
        flex-wrap: wrap;
        gap: 4px 16px;
    }
    .back_link {
        padding-bottom: 48px;
    }
}