/* 既存のFAQスタイル */
  details.faq-item { border-radius: .5rem; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 1px 1px rgba(0,0,0,.02); overflow: hidden; }
  details.faq-item + details.faq-item { margin-top: 1rem; }
  details.faq-item summary { list-style: none; cursor: pointer; padding: 1.5rem; display: flex; align-items: center; justify-content: space-between; }
  details.faq-item summary::-webkit-details-marker { display: none; }
  details.faq-item summary .q { font-size: 1.125rem; font-weight: 600; color: #111827; }
  details.faq-item .a { padding: 0 1.5rem 1.5rem; color: #4B5563; }
  .chev { transition: transform .2s ease; }
  details[open] .chev { transform: rotate(180deg); }
  details.faq-item[open] .a { animation: faqFade .18s ease; }
  @keyframes faqFade { from { opacity: 0; transform: translateY(-2px);} to { opacity: 1; transform: translateY(0);} }

  /* ▼▼▼▼▼ 標準仕様のフォーム用CSSを追加 ▼▼▼▼▼ */
  .loading-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 10000; display: flex; justify-content: center; align-items: center; opacity: 0; pointer-events: none; transition: opacity 0.3s ease-in-out; }
  .loading-overlay.active { opacity: 1; pointer-events: auto; }
  .spinner { border: 5px solid #f3f3f3; border-top: 5px solid #007bff; border-radius: 50%; width: 50px; height: 50px; animation: spin 1s linear infinite; }
  @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
  .thanks-animation { background: #28a745; color: white; padding: 25px 50px; border-radius: 10px; font-size: 1.2em; box-shadow: 0 5px 20px rgba(0,0,0,0.2); font-family: 'Noto Sans JP', sans-serif; opacity: 0; transition: opacity 0.3s ease-in-out; pointer-events: none; position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 10001;}
  .thanks-animation.active { opacity: 1; pointer-events: auto;}

  /* Standard Accordion CSS */
  .analy-sec09_qa { margin-bottom: 10px; border: 1px solid #eee; border-radius: 5px; overflow: hidden; }
  .toggle_btn { background-color: #f9f9f9; padding: 15px 20px; font-size: 18px; font-weight: bold; color: #333; cursor: pointer; display: block; position: relative; width: 100%; text-align: left; border: none; outline: none;}
  .toggle_btn::after { content: '▼'; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); transition: transform 0.3s ease; }
  .toggle_btn.show::after { content: '▲'; transform: translateY(-50%); }
  .analy-sec09_qa_a { padding: 0 20px; background-color: #fff; border-top: 1px solid #eee; }
  .toggle_panel { display: none; }
  .toggle_panel.show { display: block; }
  .analy-sec09_qa_a p, .analy-sec09_qa_a ul { padding: 15px 0; line-height: 1.6; color: #555; }

  /* ▲▲▲▲▲ 標準仕様のフォーム用CSSを追加 ▲▲▲▲▲ */

  .accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
  }