#tgBanner{ position:fixed; left:50%; transform:translateX(-50%); bottom:14px; z-index:9000;
  width:max-content; max-width:calc(100vw - 28px); margin:0; padding:8px 14px;
  box-shadow:0 12px 32px rgba(15,23,42,.28); font-size:.82rem; }
@media (max-width:820px){
  #tgBanner{ bottom:4px; padding:6px 10px; gap:6px; font-size:.74rem;
    max-width:calc(100vw - 8px); border-radius:10px; }
  #tgBanner a{ margin-left:0; }
}