.rail36{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.masthead84h{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:1rem}.rail53b{display:flex;align-items:center;gap:.55rem;text-decoration:none;font-weight:800;color:var(--text-title)}.rail53b img{width:30px;height:30px;border-radius:6px}.masthead36{display:none;gap:1rem;font-size:.95rem;color:var(--text-muted)}.masthead36 a{text-decoration:none}.masthead36 a:hover{color:var(--brand)}