/* Mobile header optimization */
@media (max-width: 768px) {
  .header-mobile {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: #fff;
    border-bottom: 1px solid #eee;
  }
  .header-mobile-left, 
  .header-mobile-right {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
  }
  .header-mobile-center {
    flex: 1 1 auto;
    text-align: center;
  }
  #menu-icon {
    font-size: 28px;
    cursor: pointer;
  }
  #_mobile_logo img {
    max-height: 40px;
  }
  #_mobile_cart, #_mobile_user_info {
    margin-left: 10px;
  }
}