.dropdown-arrow::before {
        content: '';
        position: absolute;
        top: -5px;
        left: 50%;
        transform: translateX(-50%);
        border-width: 0 5px 5px 5px;
        border-style: solid;
        border-color: transparent transparent white transparent;
        z-index: 10;
      }
.content img{display: inline-block;}
/* 隐藏滚动条 */
.no-scroll {
  overflow: hidden !important;
  height: 100% !important;
}
      
      /* 移动端风琴式菜单样式 */
      .mobile-dropdown-menu {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
      }
      
      .mobile-dropdown-menu.open {
        max-height: 500px;
        transition: max-height 0.5s ease-in;
      }
      
      .mobile-dropdown-btn {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        text-align: left;
      }
      
      .mobile-dropdown-btn i {
        transition: transform 0.3s ease;
      }
      
      .mobile-dropdown-btn.open i {
  transform: rotate(180deg);
}

.logo-animation {
  animation: none;
}

.logo-animation:hover {
  animation: flip 1s ease forwards;
}

.flag-icon {
  width: 20px;
  height: 15px;
  margin-right: 8px;
  vertical-align: middle;
}

@keyframes flip {
  0% { transform: scaleX(1); }
  50% { transform: scaleX(-1); }
  100% { transform: scaleX(1); }
}