.hch-header.scrolled{background:rgba(9,9,15,.93);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);border-bottom:1px solid rgba(204,0,0,.15);box-shadow:0 1px 0 rgba(204,0,0,.08),0 8px 40px rgba(0,0,0,.72)}.hch-header.scrolled::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--redd) 0%,var(--red) 30%,var(--redh) 50%,var(--red) 70%,var(--redd) 100%);background-size:200% 100%;animation:hchSlide 4s linear infinite}.hch-nav-link.hch-active{color:var(--t1)}.hch-nav-link.hch-active::after{left:12px;right:12px}.hch-burger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}.hch-burger.open span:nth-child(2){opacity:0}.hch-burger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}.hch-drawer.open{transform:translateX(0)}.hch-drawer-link.hch-active{color:var(--t1);border-color:rgba(204,0,0,.3)}.hch-drawer-link.hch-active .hch-drawer-link-arr{color:var(--red)}@media (prefers-reduced-motion:reduce){.hch-header.scrolled::before{animation:none}}