/* ========================================
   Column Page Styles
======================================== */

/* Column Filter */
.page-column .column-filter {
    padding: 0 0 0 20px;
    margin-bottom: 40px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.page-column .filter-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 20px;
    flex-wrap: wrap;
    padding-top: 15px;
}

.page-column .filter-btn {
    border: 1px solid #171717;
    color: #171717;
    padding: 12px 24px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 400;
    transition: all 0.3s ease;
    outline: none;
}

.page-column .filter-btn:hover {
    opacity: 0.7;
}

.page-column .filter-btn.active {
    background: #171717;
    border-color: #171717;
    color: #fff;
}

/* Column Articles */
.page-column .column-articles {
    padding: 0 0 60px;
}

.page-column .articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 20px;
    padding-bottom: 60px;
    border-bottom: 1px solid #171717;
    margin-bottom: 60px;
}

.page-column .article-card {
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-column .article-card:hover {
    transform: translateY(-5px);
    opacity: 0.7;
}

.page-column .article-image {
    position: relative;
    overflow: hidden;
    height: auto;
    aspect-ratio: 122 / 81;
}

.page-column .article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    vertical-align: top;
}

.page-column .article-card:hover .article-image img {
    transform: scale(1.05);
}

.page-column .no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: #f5f5f5;
    color: #999;
    font-size: 48px;
}

.page-column .article-content {
    padding: 20px 0 0;
}

.page-column .article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.page-column .article-date {
    font-size: 14px;
    color: #666;
}

.page-column .article-categories {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.page-column .category-tag {
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.page-column .category-tag i {
    font-size: 10px;
}

.page-column .article-title {
    margin-bottom: 15px;
}

.page-column .article-title a {
    color: #171717;
    text-decoration: none;
    font-size: 15px;
    font-weight: 400;
    line-height: 1.4;
    display: -webkit-box; /* 必須 */
    -webkit-box-orient: vertical; /* 必須 */
    -webkit-line-clamp: 2; /* 行数を制限 */
    overflow: hidden; /* はみ出た部分を非表示 */
}

.page-column .article-title a:hover {
    color: #555;
}

.page-column .article-excerpt {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.page-column .read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #171717;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: color 0.3s ease;
}

.page-column .read-more:hover {
    color: #555;
}

.page-column .read-more i {
    transition: transform 0.3s ease;
}

.page-column .read-more:hover i {
    transform: translateX(3px);
}

/* Load More Section */
.page-column .load-more-section {
    text-align: center;
    margin-top: 40px;
}

.page-column .load-more-btn {
    background: #171717;
    color: #fff;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.page-column .load-more-btn:hover {
    background: #333;
    transform: translateY(-2px);
}

.page-column .load-more-btn i {
    transition: transform 0.3s ease;
}

.page-column .load-more-btn:hover i {
    transform: translateY(2px);
}

/* No Posts */
.page-column .no-posts {
    text-align: center;
    padding: 80px 20px;
    color: #666;
    font-size: 16px;
}

/* Responsive Design */
@media (max-width: 960px) {
    .page-column .column-filter {
        display: block;
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        padding: 0;
    }
    .page-column .filter-buttons {
        padding-top: 0;
    }
    .page-column .section-subtitle {
        padding-left: 17.39px;
    }
    .page-column .articles-grid {
        margin-bottom: 55px;
        padding-bottom: 55px;
    }
    .page-column .column-articles {
        padding: 0 0 55px;
    }
}
@media (max-width: 768px) {
    .page-column .filter-buttons {
        gap: 15px;
    }
    
    .page-column .filter-btn {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    .page-column .articles-grid {
        grid-template-columns: 1fr 1fr;
        gap: 50px;
    }
    
    .page-column .article-content {
        padding: 20px 0 0;
    }
    
    .page-column .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        margin-bottom: 0;
    }
}

@media (max-width: 640px) {
    .page-column .section-subtitle {
        font-size: 14px;
        padding-left: 16.75px;
    }
    .page-column .articles-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .page-column .column-filter {
        padding: 0;
    }
    
    .page-column .filter-buttons {
        flex-direction: row;
        justify-content: flex-start;
        gap: 10px;
    }
    
    .page-column .filter-btn {
        width: auto;
    }
    
    .page-column .article-content {
        padding: 15px 0 0;
    }

    .page-column .section-subtitle {
        font-size: 12px;
        padding-left: 14.82px;
        margin-bottom: 1.5rem;
    }

    .page-column .articles-grid {
        margin-bottom: 40px;
        padding-bottom: 40px;
        gap: 50px;
    }

    .page-column .article-content {
        padding: 10px 0 0;
    }

    .page-column .article-title {
        margin-bottom: 10px;
    }

    .page-column .column-articles {
        padding: 0 0 40px;
    }
    
}

/* ========================================
   Pagination Styles
======================================== */

.page-column .column-pagination {
    margin: 60px 0 0;
    text-align: center;
}

.page-column .pagination-list {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

.page-column .pagination-item {
    display: flex;
    align-items: center;
}

.page-column .pagination-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: #171717;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.page-column .pagination-link:hover {
    background: #171717;
    border-color: #171717;
    color: #fff;
    text-decoration: none;
}

.page-column .pagination-link.current {
    background: #171717;
    border-color: #171717;
    color: #fff;
    cursor: default;
}

.page-column .pagination-link.prev,
.page-column .pagination-link.next {
    width: auto;
    padding: 0 16px;
    gap: 6px;
    background: transparent;
    border: 0;
}

.page-column .pagination-ellipsis {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: #999;
    font-size: 14px;
    font-weight: 600;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .page-column .column-pagination {
        margin: 40px 0 0;
    }
    
    .page-column .pagination-list {
        gap: 4px;
    }
    
    .page-column .pagination-link {
        width: 36px;
        height: 36px;
        font-size: 13px;
    }
    
    .page-column .pagination-link.prev,
    .page-column .pagination-link.next {
        padding: 0 12px;
        font-size: 12px;
    }
    
    .page-column .pagination-ellipsis {
        width: 36px;
        height: 36px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .page-column .column-pagination {
        margin: 30px 0 0;
    }
    
    .page-column .pagination-list {
        gap: 2px;
    }
    
    .page-column .pagination-link {
        width: 32px;
        height: 32px;
        font-size: 12px;
    }
    
    .page-column .pagination-link.prev,
    .page-column .pagination-link.next {
        padding: 0 8px;
        font-size: 11px;
    }
}