SWELL│FAQブロックをアコーディオンにするカスタマイズ

.faq_q {
    background-color: var(--color_main);
    color: #fff;
}
.faq_a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0s;
    padding: 0!important;
}
.faq_a.open {
    max-height: fit-content;
    padding: 1em 1em 1em 3em!important;
    border: solid 1px var(--color_main);
}
.swell-block-faq .faq_q:before,
.swell-block-faq .faq_a:before {
    box-shadow: none;
    left: 1px;
}
.swell-block-faq .swell-block-faq__item+.swell-block-faq__item {
    position: relative;
}
.swell-block-faq__item .faq_q:after {
    content: "\e910";
    font-family: icomoon!important;
    color: #fff;
    font-weight: bold;
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.4em;
}
.swell-block-faq__item.open .faq_q:after {
    content: "\e912";
}

function motoki_faq_accordion() {
echo <<< EOM
<script>
	const faqItems = document.querySelectorAll('.swell-block-faq__item');
	for (const faqItem of faqItems) {
	  const faqQuestion = faqItem.querySelector('.faq_q');
	  const faqAnswer = faqItem.querySelector('.faq_a');
	  if (faqItem.classList.contains('open')) {
	    faqAnswer.classList.add('open');
	  }
	  faqQuestion.addEventListener('click', () => {
		faqAnswer.classList.toggle('open');
		faqItem.classList.toggle('open');
	  });
	}
</script>
EOM;
}
add_action( 'wp_footer', 'motoki_faq_accordion' );