// Intagrate テンプレタグ（caption-no-tags-escaped）をタイトル用に短縮
add_filter('igp_template_caption_no_tags_escaped', function ($text) {
    $max = 30; // ←お好みで
    $plain = wp_strip_all_tags($text);
    if (mb_strlen($plain, 'UTF-8') > $max) {
        $plain = mb_substr($plain, 0, $max, 'UTF-8') . '…';
    }
    // タイトルで使えるように attribute 向けにエスケープして返す
    return esc_attr($plain);
});
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