カテゴリーページに表示件数を表示したい

<?php 



// 件数を取得
$total_posts = $wp_query->found_posts;
echo '<p class="search-count">検索結果：' . $total_posts . '件</p>';

if (is_mobile() && ($cardlayout_sp == 'toplayout-card2')){
   $archives_class = ' card-column2-sp';
} elseif (is_mobile() && ($cardlayout_sp == 'toplayout-overlay')){
   $archives_class = ' card-overlay';
} elseif (!is_mobile() && ($cardlayout == 'toplayout-overlay')){
   $archives_class = ' card-overlay';
} else {
   $archives_class = null;
}

if (is_mobile() && (($cardlayout_sp_home == 'toplayout-card2')) ){
   $archives_class_home = ' card-column2-sp';
} elseif (is_mobile() && ($cardlayout_sp_home == 'toplayout-overlay')){
   $archives_class_home = ' card-overlay';
} elseif (!is_mobile() && ($cardlayout_home == 'toplayout-overlay')){
   $archives_class_home = ' card-overlay';
} else {
   $archives_class_home = null;
}
?>