.productOffice_bg {  
  background: #FFFFFF linear-gradient(180deg, #E9F1FD 0%, #FFFFFF 100%);
}
.product_office_tab {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 100px;
  padding-bottom: 40px;  
}
.product_office_title {
  margin-right: 24px;
  font-size: 38px;
  color: rgba(0, 9, 50, .35);
  cursor: pointer;
}
.product_office_title.is_active{  
  font-weight: bold;
  font-size: 44px;  
  color: rgba(0, 9, 50, 1);
}
.product_office_tab_content {
  position: relative;
  display: none;
  width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
.product_office_tab_content.is_active {
  display: flex;
}
.product_office_tab_content .product_office_placeholder_img {
  width:60%;
  opacity: 0;
}
.product_office_tab_content img {
  width: 100%;
  height: auto;
}
.product_office_content {
  position: absolute;
  top:0;
  left:0;
  right:0;
  bottom:0;
  width: 60%;
}
.product_office_media {  
  position: absolute;
  top:0;
  left:0;
  right:0;
  bottom:0;
  opacity: 0;
  cursor: pointer;
}
@keyframes transform_fade {
  0% {
    transform: translateX(-10px);
  }
  100% {    
    transform: translateX(0);
  }
}
.product_office_media.is_active {
  transition:all ease-in .5s;  
  opacity: 1;
  z-index: 2;
  animation:.5s linear transform_fade;
}
.product_office_content_tabs {
  align-self: center;
  padding-left:100px;
  width: 40%;
  box-sizing: border-box;
}
.product_office_content_tabs_item {
  position: relative;
  padding-left:40px;
  padding-bottom: 32px;
  cursor: pointer;
}
.product_office_content_tabs_item:before,
.product_office_content_tabs_item:after {
  position: absolute;
  content: "";
  left:10px;
  top:11px;
}
.product_office_content_tabs_item:before {
  bottom:-11px;
  border-left:1px dashed #FF0000;
  opacity: 0.1;
}
.product_office_content_tabs_item:last-child:before,
.product_office_content_tabs_item:last-child:after {
  display: none;
}
.product_office_content_tabs_title {
  padding-bottom: 8px;
  font-size: 24px;
  color: #1D2129;
}
.product_office_content_tabs_item.is_active .product_office_content_tabs_title {
  background: linear-gradient(154deg, #FFA531 0%, #FF5000 49%, #FF2969 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: bold;
}
.product_office_content_tabs_text {
  max-height: 0;
  opacity: 0;
  transform: translateY(22px);
  overflow: hidden;
  font-size: 16px;
  color: #86909C;
  transition: all .3s ease-in;
}
.product_office_content_tabs_cube {
  position: absolute;
  top: 6px;
  left: 0;
  width: 20px;
  height: 20px;
  z-index: 2;
  transform: rotate(45deg);
}
.product_office_content_tabs_cube:before,
.product_office_content_tabs_cube:after {
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: transform .3s ease-in;
}
.product_office_content_tabs_cube:before {
  background-color: #ffbc9b;
  transform: scale(.5);
}
.product_office_content_tabs_cube:after {
  border-radius: 2px;
  background-color: #f55402;
  transform: scale(.5);
}

.product_office_content_tabs_item.history_active::before {
  opacity: 1;
  border-left:1px solid #F55402;
}
@keyframes transform_to_bottom {
  0% {
    bottom:100%;
  }
  100% {    
    bottom:-11px;
  }
}
.product_office_content_tabs_item.is_active::after {  
  border-left:1px solid #F55402;
  animation:transform_to_bottom 5s infinite;
}
.product_office_content_tabs_item.is_active .product_office_content_tabs_text {
  max-height:unset;
  opacity: 1;
  transform: translateY(0);
}
.product_office_content_tabs_item.is_active .product_office_content_tabs_cube:before {
  transform: scale(.8);
}