/* 手機板固定漢堡選單（僅手機顯示） */
.index-mobile-menu-btn {
  display: none;
}

.index-mobile-menu-panel,
.index-mobile-menu-mask {
  display: none;
}

@media (max-width: 991px) {
  .index-mobile-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    position: fixed;
    top: 14px;
    right: 14px;
    z-index: 1200;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
    cursor: pointer;
  }

  .index-mobile-menu-btn span {
    display: block;
    width: 18px;
    height: 2px;
    background: #333;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .index-mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .index-mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

  .index-mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .index-mobile-menu-mask {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1100;
    background: rgba(0, 0, 0, 0.35);
  }

  .index-mobile-menu-mask.active {
    display: block;
  }

  .index-mobile-menu-panel {
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1150;
    width: 90vw;
    height: 100vh;
    overflow-y: auto;
    background: #fff;
    box-shadow: -4px 0 18px rgba(0, 0, 0, 0.12);
    transform: translateX(105%);
    transition: transform 0.25s ease;
    padding: 0 0 24px;
  }

  .index-mobile-menu-panel.active {
    transform: translateX(0);
  }

  .index-mobile-menu-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 52px 16px 18px;
    border-bottom: 1px solid #eee;
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 1;
  }

  .index-mobile-menu-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: #333;
  }

  .index-mobile-menu-close {
    position: absolute;
    top: 10px;
    right: 12px;
    width: 36px;
    height: 36px;
    border: 0;
    background: transparent;
    font-size: 1.75rem;
    line-height: 1;
    color: #333;
    cursor: pointer;
  }

  .index-mobile-menu-list {
    margin: 0;
    padding: 8px 0;
  }

  .index-mobile-menu-item {
    border-bottom: 1px solid #f0f0f0;
  }

  .index-mobile-menu-lv1 {
    display: block;
    padding: 14px 18px 10px;
    color: #222;
    font-size: 1.0625rem;
    font-weight: 700;
    text-decoration: none;
    background: #fafafa;
  }

  .index-mobile-menu-sub {
    margin: 0;
    padding: 4px 0 10px;
  }

  .index-mobile-menu-lv2 {
    display: block;
    padding: 8px 18px 8px 34px;
    color: #555;
    font-size: 0.9375rem;
    font-weight: 400;
    text-decoration: none;
    border-left: 3px solid #e5e5e5;
    margin-left: 18px;
  }

  .index-mobile-menu-lv1:hover,
  .index-mobile-menu-lv1:focus,
  .index-mobile-menu-lv2:hover,
  .index-mobile-menu-lv2:focus {
    color: var(--universal-font-color, #0d6efd);
    background: #f5f8ff;
  }
}