function xchina_pagination($query = null, $is_comments = false) {
    if ($is_comments) {
        // For comments pagination
        $total_pages = get_comment_pages_count();
        $current_page = max(1, get_query_var('cpage') ? get_query_var('cpage') : 1);
    } else {
        // For posts pagination
        $query = $query ?: $GLOBALS['wp_query'];
        $total_pages = $query->max_num_pages;
        $current_page = max(1, get_query_var('paged') ? get_query_var('paged') : 1);
    }

    if ($total_pages <= 1) {
        return;
    }

    echo '<div class="pagination">';

    // Previous Button
    $prev_class = $current_page <= 1 ? ' disabled' : '';
    $prev_link = $is_comments ? get_previous_comments_link('<') : previous_posts_link('<');
    if ($is_comments) {
        echo '<div class="circle-btn' . esc_attr($prev_class) . '">' . ($current_page > 1 ? '<a href="' . esc_url(get_comments_pagenum_link($current_page - 1)) . '">&lt;</a>' : '&lt;') . '</div>';
    } else {
        echo '<div class="circle-btn' . esc_attr($prev_class) . '">' . ($current_page > 1 ? '<a href="' . esc_url(get_pagenum_link($current_page - 1)) . '">&lt;</a>' : '&lt;') . '</div>';
    }

    // Page Numbers
    $range = 2; // Number of pages to show before and after current page
    $show_ellipsis = false;

    for ($i = 1; $i <= $total_pages; $i++) {
        if ($i == 1 || $i == $total_pages || ($i >= $current_page - $range && $i <= $current_page + $range)) {
            $class = $i == $current_page ? ' active' : '';
            $link = $is_comments ? get_comments_pagenum_link($i) : get_pagenum_link($i);
            echo '<div class="circle-btn' . esc_attr($class) . '"><a href="' . esc_url($link) . '">' . esc_html($i) . '</a></div>';
            $show_ellipsis = true;
        } elseif ($show_ellipsis) {
            echo '<div class="ellipsis">…</div>';
            $show_ellipsis = false;
        }
    }

    // Next Button
    $next_class = $current_page >= $total_pages ? ' disabled' : '';
    $next_link = $is_comments ? get_next_comments_link('>') : next_posts_link('>');
    if ($is_comments) {
        echo '<div class="circle-btn' . esc_attr($next_class) . '">' . ($current_page < $total_pages ? '<a href="' . esc_url(get_comments_pagenum_link($current_page + 1)) . '">&gt;</a>' : '&gt;') . '</div>';
    } else {
        echo '<div class="pagination-btn' . esc_attr($next_class) . '">' . ($current_page < $total_pages ? '<a href="' . esc_url(get_pagenum_link($current_page + 1)) . '">&gt;</a>' : '&gt;') . '</div>';
    }

    echo '</div>';
}