* {
  margin: 0;
  padding: 0;
}

.header_box {
  width: 100%;
  position: fixed;
  top: 0;
  z-index: 10;
  transition: .5s;
}

.header {
  max-width: 1857px;
  width: 90%;
  height: calc(20px + 4rem);
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  
}

.header_logo img{
  height: calc(20px + 3rem);
}


.header_right{
  height: 100%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.header_nav{
  height: 100%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: calc(20px + 2rem);
}
.header_nav_item{
  height: 100%;
  position: relative;
}
.header_nav_item .p1{
  height: 100%;
  color: #ffffff;
  font-size: calc(8px + 0.5rem);
  transition: .5s;
  display: flex;
  align-items: center;
  
}

.search{
  width: calc(15px + 1.5rem);
  height: calc(15px + 1.5rem);
  background-color: #ffffff;
  border-radius: 50%;
  margin-left: calc(20px + 4rem);
  display: flex;
  justify-content: center;
  align-items: center;
}

.language{
  width: calc(8px + 5rem);
  height: calc(5px + 2rem);
  background-color: #ffffff;
  border-radius: calc(10px + 1rem);
  margin-left: calc(15px + 0.5rem);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: calc(5px + 0.25rem);
  position: relative;
  cursor: pointer;
}

.language  .p1{
  font-size: calc(6px + 0.5rem);
}

.header_box_act{
  background-color: #ffffff;
}

.header_box_act .header_nav_item .p1{
  color: #333333;
}
.header_box_act .header_nav_item_act .p1{
  color: #175cb1;
}
.header_nav_item_act .p1 {
  color: #175cb1;
}

.second_nav{
width: calc(45px + 8rem);
max-height: 0;
background-color: #ffffff;
position: absolute;
top: 100%;
left: -50%;
z-index: 100000;
border-radius: calc(10px + 0.5rem);
box-shadow: 0px calc(2px + 0.1rem) calc(2px + 0.5rem) #00000030;
overflow: hidden;
transition: .5s;
}
.second_nav_item {
  font-size: calc(6px + 0.5rem);
  color: #333333;
  text-align: center;
  line-height: calc(10px + 1.5rem);
  transition: .3s;
}

.header_nav_item:hover .second_nav{
  max-height: calc(55px + 10rem);
  padding: calc(10px + 0.5rem) 0;
}
.second_nav_item:hover{
  background-color: #f6f6f6;
}

.lang{
  width: 100%;
  height: 0;
  background-color: #ffffff;
position: absolute;
top: 100%;
z-index: 100000;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
gap: calc(1px + 0.5rem);
border-radius: calc(5px + 0.5rem);
box-shadow: 0px calc(2px + 0.1rem) calc(2px + 0.5rem) #00000030;
overflow: hidden;
transition: .3s;
}
.lang p{
  width: 100%;
  text-align: center;
  font-size: calc(6px + 0.5rem);
  color: #666666;
  font-weight: 700;
  transition: .3s;
}
.lang p:hover{
  background-color: #f6f6f6;
}
.language:hover .lang{
  height: calc(10px + 4rem);
}