/* 手機端：分類與篩選區預設摺叠，點擊標題才展開；PC 端維持原本樣式不變 */

.catalog-filter-toggle {
  display: none;
}

@media (max-width: 991px) {
  .catalog-filter-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 20px;
    border: 0;
    background: #384aeb;
    color: #fff;
    font-family: "Oswald", sans-serif;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.3;
    text-align: left;
  }

  .catalog-filter-toggle i {
    font-size: 16px;
    transition: transform .25s ease;
  }

  .catalog-filter-collapse.is-open .catalog-filter-toggle i {
    transform: rotate(180deg);
  }

  /* 用 max-height 收合，保留元素寬度可量測，避免摺叠狀態影響價格滑桿等元件的初始化 */
  .catalog-filter-panel {
    max-height: 0;
    margin-top: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height .3s ease, margin-top .3s ease, visibility .3s ease;
  }

  .catalog-filter-collapse.is-open .catalog-filter-panel {
    max-height: 6000px;
    margin-top: 14px;
    visibility: visible;
  }
}