.header{position: sticky;top: 0;width: 100%;z-index: 1000;transition: all 1s;background: #fff;box-shadow: 0px 9px 10px #00000026;}
.header_content{text-align: center;padding: 29px 0;}
.header.header_flex .header_content {width: 100%;z-index: 999;background: #fff;box-shadow: 0px 9px 15px #00000026;}
@media (max-width:980px) {
    .header{top: 0;}
    .header_content{padding: 35px 0;}
}
@media (max-width:768px) {
    .header_content{padding: 25px 0;}
}