/* ============================================================
   商品スペック内の折りたたみ項目（全成分など長文用・汎用パーツ）
   商品ごとのBEMプレフィックスに依存しないので、どのページでも
   このクラス名のままコピーして使えます。

   使い方:
   <details class="kdw-spec-toggle">
     <summary class="kdw-spec-toggle__summary">
       <span class="kdw-spec-toggle__mark" aria-hidden="true"></span>
       <span class="kdw-spec-toggle__label">■全成分：</span>
     </summary>
     <div class="kdw-spec-toggle__body"> ...全成分テキスト... </div>
   </details>
   ============================================================ */
.kdw-spec-toggle {
  border: 1px solid #ddd;
  border-radius: 8px;
  background: #fff;
  margin: 10px 0;
  overflow: hidden;
}
.kdw-spec-toggle > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: #f7f7f7;
}
.kdw-spec-toggle > summary::-webkit-details-marker {
  display: none;
}
.kdw-spec-toggle > summary::marker {
  display: none;
}
.kdw-spec-toggle__mark {
  flex: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #888;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  line-height: 1;
}
.kdw-spec-toggle__mark::before {
  content: "＋";
}
.kdw-spec-toggle[open] .kdw-spec-toggle__mark {
  background: #555;
}
.kdw-spec-toggle[open] .kdw-spec-toggle__mark::before {
  content: "－";
}
.kdw-spec-toggle__body {
  padding: 10px 14px 14px;
  border-top: 1px solid #eee;
  font-size: 14px;
  line-height: 1.9;
  color: #444;
}