body {
  background: #F4F4F4;
}
.nei_banner_box {
  width: 100%;
  height: calc(40px + 10rem);
}
.nei_banner_box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about_nav {
  background: #EDEFEE;
  display: flex;
  justify-content: center;
}
.about_nav .about_nav_item {
  width: calc(40px + 10rem);
  height: calc(10px + 3rem);
  background: #EDEFEE;
}
.about_nav .about_nav_item a {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: DM_Sans-regular;
  font-weight: 400;
  font-size: calc(6px + 0.5rem);
  color: #333333;
}
.about_nav .about_nav_item_act {
  background-color: #009944;
}
.about_nav .about_nav_item_act a {
  color: #ffffff;
}
.about_history_box {
  width: 100%;
  padding: calc(5px + 5rem) 0;
}
.about_history_box .about_history {
  max-width: 1600px;
  width: 85%;
  margin: auto;
}
.about_history_box .about_history .about_history_title p:nth-of-type(1) {
  font-family: DM_Sans-bold;
  font-weight: bold;
  font-size: calc(8px + 2rem);
  color: #333333;
  letter-spacing: calc(0px + 0.1rem);
  text-align: center;
}
.about_history_box .about_history .about_history_title p:nth-of-type(1) span {
  color: #009944;
}
.about_history_box .about_history .about_history_title p:nth-of-type(2) {
  text-align: center;
  font-family: DM_Sans-medium;
  font-weight: 500;
  font-size: calc(6px + 0.5rem);
  color: #666666;
  line-height: calc(10px + 3rem);
}
.about_history_list_item{
    position: relative;
    padding-left: 42%;
}
.about_history_list_item .p2:hover .p3 p{

font-weight: 500;
font-size: calc(6px + 1.5rem);
color: #333333;
line-height: calc(15px + 1.5rem);
letter-spacing: calc(0px + 0.1rem);
}
.about_history_list_item .p2:hover .p3 div{

font-weight: 500;
font-size: calc(6px + 1.5rem);
color: #333333;
line-height: calc(15px + 3rem);
letter-spacing: calc(0px + 0.1rem);
}
.about_history_list_item .p2:hover .p3{

font-weight: 500;
font-size: calc(6px + 1.5rem);
color: #333333;
line-height: calc(15px + 3rem);
letter-spacing: calc(0px + 0.1rem);
}
.about_history_list{
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: calc(2px + 2rem);
    margin-top: calc(17px + 3rem);
}
.about_history_list_item_pic{
    width: calc(180px + 20rem);
   
    position:absolute;
    left: 0;
    top: 0;
}
.about_history_list_item_pic img{
    width: 100%;
 border-radius: calc(5px + 0.25rem);
    object-fit: cover;
}
.about_history_list_item .p1{
font-family: DM_Sans-medium;
font-weight: 500;
font-size: calc(4px + 1rem);
color: #333333;
line-height: calc(10px + 1rem);
letter-spacing: 1px;
margin-bottom: calc(4px + 1rem);

}
.about_history_list_item .p2{
    border-left: calc(0px + 0.1rem) solid #BFBFBF;
    padding-left: calc(4px + 5rem);
    padding-bottom: calc(20px + 2rem);
    margin-left: calc(1px + 1.5rem);
}
.about_history_list_item .p2 .p3{
   margin-top: calc(1px + 0.5rem) ;
   
    cursor: pointer;
    font-family: DM_Sans-medium;
font-weight: 500;
font-size: calc(10px + 0.5rem);
color: #333333;
line-height: calc(10px + 1rem);
letter-spacing: 1px;
 transition: .3s;
}
.about_history_list_item .p2 .p3 p{
font-family: DM_Sans-medium;
font-weight: 500;
font-size: calc(10px + 0.5rem);
color: #333333;
line-height: calc(10px + 1rem);
letter-spacing: 1px;
 transition: .3s;
}
.about_history_list_item .p2 .p3 div{
font-family: DM_Sans-medium;
font-weight: 500;
font-size: calc(10px + 0.5rem);
color: #333333;
line-height: calc(10px + 1rem);
letter-spacing: 1px;
 transition: .3s;
}
..about_history_list_item .p2 img{
    width: calc(8px + 1rem);
}
@media (max-width: 1100px) {
  .about_nav {
    flex-direction: column;
    justify-content: flex-start;
  }
  .about_nav .about_nav_item {
    width: 100%;
    padding: calc(10px + 2rem) 0;
  }
  .about_nav .about_nav_item a {
    font-size: calc(12px + 1rem);
  }
  .about_history_box .about_history .about_history_title p:nth-of-type(1) {
    font-size: calc(16px + 1rem);
  }
  .about_history_box .about_history .about_history_title p:nth-of-type(2) {
    font-size: calc(12px + 1rem);
  }
  .about_history_box .about_history .about_history_list .about_history_item .about_history_text p {
    font-size: calc(12px + 1rem);
  }
  .about_history_box .about_history .about_history_list .about_history_item .about_history_text div p {
    font-size: calc(10px + 1rem);
    line-height: 1.5;
  }
  .about_history_box .about_history .about_history_list .about_history_item .about_history_text img {
    width: calc(25px + 27rem);
  }
  .about_history_list_item_pic {
    width: calc(180px + -16rem);
   
}
.about_history_list_item .p1{
    font-size: calc(14px + 1rem);
}
}