* {
    margin: 0;
    padding: 0;
}

.header_box {
    width: 100%;
    position: absolute;
    top: 0;
    z-index: 1000;
    background-color: #ffffff;
}

.header {
    max-width: 1640px;
    height: calc(20px + 4rem);
    width: 85%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header .header_logo {
    width: calc(51px + 10rem);
}

.header .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-start;
    align-items: center;
    gap: calc(11px + 3rem);
    margin-right: calc(9px + 4rem);


}

.header_nav .header_nav_item {
    height: 100%;
    position: relative;
}

.header_nav .header_nav_item .p1 {
    height: 100%;
    font-family: Source_Han_normal;
    font-weight: 350;
    font-size: calc(8px + 0.5rem);
    color: #333333;


}

.header_nav .header_nav_item .p1 {
    height: 100%;

}

.header_nav .header_nav_item .p1 a {
    height: 100%;
    display: flex;
    align-items: center;
}

.header_nav .header_nav_item_act {
    color: #000000;
}

.header_right .lang {

    font-family: Source_Han_normal;
    font-weight: 350;
    font-size: calc(6px + 0.5rem);
    color: #000000;
    margin-right: calc(7px + 1.5rem);

}

.header_right .line {
    width: 1px;
    height: calc(4px + 0.5rem);
    background: #000000;
    margin-right: calc(1px + 2rem);
}

.header_right .search {
    width: calc(8px + 0.5rem);
    cursor: pointer;
}

.header_right .search img {
    width: 100%;
}

.second_nav {
    display: none;
    width: calc(36px + 7rem);
    max-height: 0;
    background: #FFFFFF;
    border-radius: 0px 0px calc(5px + 0.25rem) calc(5px + 0.25rem);
    position: absolute;
    top: 100%;
    left: -40%;
    flex-direction: column;
    justify-content: flex-start;

    padding-left: calc(5px + 1rem);
    overflow: hidden;
    transition: .5s;
}

.header_nav .header_nav_item:nth-of-type(4) .second_nav {
    display: flex;
}

.second_nav .second_nav_item {
    font-family: Source_Han_normal;
    font-weight: 350;
    font-size: calc(6px + 0.5rem);
    color: #666666;
    line-height: calc(3px + 2rem);
}

.second_nav .second_nav_item:hover {
    color: #333333;
}

.search_box{
    width: 100%;
    height: 100vh;
    background-color: #ffffff;
    position: fixed;
    top: 0;
    z-index: 100000;
    display: flex;
    justify-content: center;
    align-items: center;
    display: none;

}
.search_box .close{
    position: absolute;
    top: calc(13px + 2rem);
    right: calc(52px + 5rem);
    cursor: pointer;
}

.search_input{
    height: calc(25px + 2rem);
    width: calc(300px + 50rem);
border-bottom:1px #D8D8D8 solid;
display: flex;
justify-content: space-between;
align-items: center;
padding: 0 calc(5px + 1rem);
}
.search_input input{
    width: 80%;
    height: 100%;
font-family: DM_Sans-bold;
font-weight: 600;
font-size: calc(8px + 0.5rem);
color: #666666;
border: none;
outline: medium;

}
.search_input div{
    cursor: pointer;
}