* {
  margin: 0;
  padding: 0;
}

.header_box {
  width: 100%;
  height: calc(20px + 4rem);
  position: absolute;
  top: 0;
  border-bottom: 1px rgba(255, 255, 255, 0.3) solid;
}

.header {
  max-width: 1744px;
  width: 90%;
  height: 100%;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header_logo {
  width: calc(74px + 10rem);
}

.header_logo img {
  width: 100%;
}

.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(9px + 3rem);
}

.header_nav_item {
  height: 100%;
  font-family: Source Han Sans, Source Han Sans;
  font-weight: 400;
  font-size: calc(8px + 0.5rem);
  color: #FFFFFF;
  line-height: calc(6px + 1rem);

}

.header_nav_item a {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
}

.header_nav_item_act {
  border-bottom: calc(0px + 0.1rem) #ffffff solid;
}

.language {
  margin-left: calc(4px + 3rem);
}

.language img {
  width: calc(4px + 1rem);
}

.search {
  margin-left: calc(13px + 2rem);
}

.search img {
  width: calc(4px + 1rem);
}

.header_nav_item_act1 {

  border-bottom: calc(0px + 0.1rem) #007BA3 solid;
}

.header_nav_item_act1 a {
  color: #007BA3;
}

.xiala_box {
  width: 1920px;
  background: #00000080;
  border-radius: 0px 0px 0px 0px;
  position: absolute;
  top: 100%;
  left: 0;
  display: none;
  max-height: 0;
  overflow: hidden;
  transition: .5s;
}

.div1:nth-of-type(1) .xiala_box {
  display: block;
  
}
.xiala{
max-width: 1640px;
width: 90%;
margin: auto;
display: flex;
justify-content: flex-start;
align-items: center;
}
.xiala_left{
  flex: 1;
}
.xiala_left .p1 {
  font-family: Source Han Sans, Source Han Sans;
  font-weight: 500;
  font-size: calc(8px + 0.5rem);
  color: #FFFFFF;
  line-height: calc(6px + 1rem);
  text-shadow: 0px calc(2px + 0.1rem) calc(5px + 0.25rem) rgba(0, 0, 0, 0.3);
}
.xiala_left .p2 {
  font-family: Source Han Sans, Source Han Sans;
  font-weight: 500;
  font-size: calc(6px + 1.5rem);
  color: #FFFFFF;
  line-height: calc(6px + 1rem);
  text-shadow: 0px calc(2px + 0.1rem) calc(5px + 0.25rem) rgba(0, 0, 0, 0.3);
  margin-top: calc(10px + 1rem);
}

.xiala_right{
  width: 60.2439%;
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: calc(3px + 0.5rem);
  row-gap: calc(5px + 1rem);
}

.xiala_item{
  width: 23.7854%;

}

.xiala_item_pic{
  width: 100%;
  height: calc(60px + 5rem);
  border-radius: calc(10px + 0.5rem);
  box-shadow: 0 calc(2px + 0.1rem) calc(5px + 0.25rem) 0 #00000030;
  overflow: hidden;
  ov
}
.xiala_item_pic img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.15);
  transition: .5s;
}
.xiala_item_pic img:hover{

  transform: scale(1.25);

}
.xiala_item p{
font-family: Source Han Sans, Source Han Sans;
font-weight: 400;
font-size: calc(6px + 0.5rem);
color: #FFFFFF;
line-height: calc(3px + 1rem);
text-align: center;
margin-top: calc(5px + 1rem);
}

.div1:hover .xiala_box{
  max-height: calc(200px + 20rem);
  padding: calc(2px + 1.5rem) 0;
}