.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(15px)}.header-row{height:var(--header-height);display:flex;align-items:center;gap:28px}.brand img{width:188px}.site-nav{display:flex;align-items:center;gap:21px;margin-left:auto}.site-nav a{font-size:.89rem;font-weight:780}.site-nav a.is-active{color:var(--gold-dark)}.header-tools{display:flex;align-items:center;gap:10px}.language-switch{display:flex;gap:6px}.language-switch a{font-size:.72rem;font-weight:900;color:var(--muted)}.language-switch a.is-active{color:var(--gold-dark)}.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;padding:10px}.nav-toggle span{display:block;height:2px;background:#111;margin:5px 0}