.head_box{
    padding: 20px 0;
    background: linear-gradient(rgb(7, 7, 7) 0%, rgba(0, 0, 0, 0) 100%);
    position: fixed;
    z-index: 999;
    width: 100%;
    left: 0;
    top: -132px;
    transition: all 0.5s;
}

.head_box.open{
    top: 0;
}

.head_box .up_box{
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.head_box .up_box >div{
    width: 30%;
    padding: 0 20px;
}

.head_box .up_box .logo_box{
  text-align: center;
}

.head_box .up_box .logo_box img{
    max-width: 150px;
}


.head_box .up_box .login_box{
    display: block;
    text-decoration: none;
}
.head_box .up_box .login_box span{
    color: rgba(255,255,255,0.5);
}

.head_box .up_box .langage_box{
    position: relative;
}

.head_box .up_box .langage_box:hover .select_item{
    display: block;
}

.head_box .up_box .langage_box:hover .langage{
    color: transparent;
}


.head_box .up_box .langage_box .select_item{
    display: none;
    position: absolute;
    top: -15px;
    left: 10px;
}

.head_box .up_box .but_box{
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    color: rgba(255,255,255,0.5);
}

.head_box .up_box .but_box >div{
    margin: 0 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
}


.head_box .up_box .but_box img{
    width: 20px;
    margin-right: 5px;
}

.head_box .up_box .but_box .search_input{
    display: none;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.5);
    padding: 5px;
    border-radius: 5px;
}

.head_box .up_box .but_box .search_input input{
   margin-right: 5px;
   background: transparent;
    border: none;
    outline: none;
    color: #fff;
    width: 120px;
}

.head_box .up_box .but_box .search_input ::-webkit-input-placeholder { color:#fff; }
.head_box .up_box .but_box .search_input ::-moz-placeholder { color:#fff; } /* firefox 19+ */
.head_box .up_box .but_box .search_input :-ms-input-placeholder { color:#fff; } /* ie */
.head_box .up_box .but_box .search_input input:-moz-placeholder { color:#fff; }



.head_box .low_box{
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 10px;
}

.head_box .low_box a{
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    margin: 0 20px;
}