.lv-nav{z-index:20;background:color-mix(in oklab, var(--raised) 82%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);align-items:center;gap:24px;padding:14px clamp(20px,4vw,40px);display:flex;position:sticky;top:0}.lv-nav-mark{font-family:var(--font-display);letter-spacing:.04em;color:var(--accent-bright);cursor:pointer;background:0 0;border:none;padding:0;font-size:22px;font-weight:700}.lv-nav-links{gap:6px;display:flex}.lv-nav-link{font-family:var(--font-sans);color:var(--text-secondary);cursor:pointer;transition:color var(--dur-fast);background:0 0;border:none;border-radius:8px;padding:7px 12px;font-size:14px}.lv-nav-link:hover{color:var(--text-primary)}.lv-nav-link.is-active{color:var(--accent-bright)}.lv-nav-right{align-items:center;gap:16px;margin-left:auto;display:flex}.lv-lang{border:1px solid var(--border);border-radius:8px;display:flex;overflow:hidden}.lv-lang-b{font-family:var(--font-mono);color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:6px 9px;font-size:11px}.lv-lang-b.is-on{background:var(--surface);color:var(--accent-bright)}.lv-nav-cta{padding:8px 16px;font-size:13px}@media (max-width:860px){.lv-nav-links{display:none}}