.site-head,.inner-head{will-change:transform;transition:transform .28s ease,background-color .28s ease,box-shadow .28s ease,color .28s ease}.site-head{position:fixed;top:0;left:0;right:0}.inner-head{position:sticky;top:0}.site-head.nav-scrolled{background:rgba(255,255,255,.97);color:#171717;border-bottom-color:#dedbd5;backdrop-filter:blur(12px);box-shadow:0 8px 30px rgba(0,0,0,.1)}.site-head.nav-scrolled .brand img{filter:none}.site-head.nav-scrolled .head-contact{border-left-color:#dedbd5}.site-head.nav-scrolled .menu{color:#171717;border-color:#777}.inner-head.nav-scrolled{background:#fff;box-shadow:0 8px 30px rgba(0,0,0,.08)}.site-head.nav-hidden,.inner-head.nav-hidden{transform:translateY(-110%)}@media(prefers-reduced-motion:reduce){.site-head,.inner-head{transition:none}}