.header_box {
  width: 100%;
  position: absolute;
  top: 0;
  z-index: 10;

  border-bottom: 1px #ffffff20 solid;

}

.header {
  max-width: 1721px;
  width: 89.5833%;
  float: inline-end;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header_logo {
  height: 69.3181%;
}

.header_logo {
  height: 100%;
  object-fit: contain;
}

.header_nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: calc(3px + 1rem);
  margin-right: calc(30px + 1rem);

}

.header_nav .nav_item {
  width: calc(20px + 5rem);
  height: calc(8px + 4rem);
  font-family: OPPOSans-R;
  font-weight: normal;
  font-size: calc(8px + 0.5rem);
  color: #FFFFFF;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  
}
.nav_item>div{
    width: 100%;
    height: 0%;
    position: absolute;
    top: 0;
    left: 0;
    transition: height 0.5s ease;
}
.nav_item:hover>div{
    height: 100%;
    background: linear-gradient(to bottom, #FFFFFF20 0%, rgba(255, 255, 255, 0) 100%);
}




.nav_active {
  background: linear-gradient(to bottom, #FFFFFF20 0%, rgba(255, 255, 255, 0) 100%);
  /* opacity: 0.08; */

}

/*.nav_item:hover {*/
/*  background: linear-gradient(to bottom, #FFFFFF10 0%, rgba(255, 255, 255, 0) 100%);*/
/*}*/

.language_box {
  display: flex;
  justify-content: flex-end;
  gap: calc(2px + 2rem);
}

.lang {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: calc(5px + 0.25rem);
  position: relative;
  cursor: pointer;
}

.lang img:nth-of-type(1) {
  width: calc(9px + 1rem);
}

.lang img:nth-of-type(2) {
  width: calc(5px + 0.25rem);
}

.lang p {
  font-family: OPPOSans-R;
  font-weight: normal;
  font-size: calc(8px + 0.5rem);
  color: #FFFFFF;
  opacity: 0.8;
}

.price_contact {
  width: calc(58px + 5rem);
  line-height: calc(8px + 4rem);
  background: #1D5D9F;
  font-family: OPPOSans-R;
  font-weight: normal;
  font-size: calc(8px + 0.5rem);
  color: #dfe5ee;
  text-align: center;
}


.lang_select {
  width: 100%;
  height: 0;
  background-color: #FFFFFF;
  position: absolute;
  top: 75%;
  left: 0;
  overflow: hidden;
  transition: .5s;
}

.lang_select P {
  font-family: OPPOSans-R;
  font-weight: normal;
  font-size: calc(8px + 0.5rem);
  color: #333333;
  text-align: center;
  padding: calc(5px + 0.25rem) 0;
}

.lang_select P:hover {
  background-color: #dbdbdb;
}

.lang:hover .lang_select {
  height: calc(10px + 4rem);
}























.banner {
  width: 100%;
  position: relative;

}

.banner>div {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  /* border: 1px solid #000; */

}

.banner>div>.public_w {
  width: 85%;
  height: 100%;
  /* margin-top: calc(60px + 10rem); */
  display: flex;
  flex-direction: column;
  letter-spacing: 1px;
  justify-content: center;
  /* border: 1px #f00 solid; */

}

.banner>div>.public_w>p {
  font-family: OPPOSans-B;
  font-size: calc(10px + 1.5rem);
  color: #FFFFFF;
  text-shadow: 0px 6px 12px rgba(43, 69, 90, 0.2);
  letter-spacing: 2px;
  margin-top: calc(10px + 1rem);
}

.banner>div>.public_w>span {
  font-family: OPPOSans-R;
  font-size: calc(10px + 0.5rem);
  color: #FFFFFF;
  text-shadow: 0px 6px 12px rgba(43, 69, 90, 0.2);
  margin-top: calc(10px + 0.8rem);
  letter-spacing: 2px;
}