マンガのようなコマ割り風アコーディオン

<div class="accordion-manga">
  <div class="accordion-item">
    <button class="accordion-question">Q. このアコーディオンの特徴は？</button>
    <div class="accordion-answer">
      <p>A. マンガのコマのように、質問と答えを枠で囲んで吹き出し風にデザインしています！</p>
    </div>
  </div>

  <div class="accordion-item">
    <button class="accordion-question">Q. どんな場面に向いていますか？</button>
    <div class="accordion-answer">
      <p>A. 学習コンテンツ、雑学、子ども向け情報など、楽しく読みやすくしたいときに最適です！</p>
    </div>
  </div>
</div>

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.accordion-answer::before {
  content: 'A：';
  font-weight: bold;
  color: #555;
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