.dropdown {
  display: inline-flex;
  align-items: center;
  position: relative;
  color: inherit;
  vertical-align: top;
  cursor: pointer;
}

.dropdown > .dropdown-trigger {
  display: inline-flex;
  align-items: center;
}

.dropdown .dropdown-arrow {
  flex-shrink: 0;
  margin-left: 4px;
  transition: transform 0.3s ease;
}
.dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--bg-color);
  min-width: 100%;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  padding: 10px 0;
  list-style: none;
  margin: 8px 0 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 100;
}
.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown .dropdown-menu > li {
  display: flex;
  align-items: center;
  white-space: nowrap;
  list-style: none;
  line-height: 22px;
  box-sizing: border-box;
  min-width: 100%;
  padding: 10px 20px;
  margin: 0;
  font-size: 14px;
  color: var(--text-primary-color);
  cursor: pointer;
  outline: none;
  transition: all 0.2s;
}
.dropdown .dropdown-menu > li:hover {
  color: var(--primary-color);
  background-color: var(--primary-color-light-9);
}

/* ========== 🆕 新增：移动端下拉点击支持（不影响桌面 hover） ========== */
@media (max-width: 1023px) {
  /* 覆盖 hover 效果，移动端不触发 hover 展开 */
  .dropdown:hover .dropdown-arrow {
    transform: none;
  }
  .dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  /* 下拉菜单默认隐藏，由 .open 控制显示 */
  .dropdown .dropdown-menu {
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    position: static;
    box-shadow: none;
    border: none;
    border-radius: unset;
    padding: 0;
    margin-top: 4px;
    background: transparent;
  }
  .dropdown.open .dropdown-menu {
    display: block;
  }
  .dropdown.open .dropdown-arrow {
    transform: rotate(180deg);
  }
}