#site-banner {
  font-family: inherit;
  letter-spacing: 0.02em;
  animation: banner-slide-down 0.5s cubic-bezier(0.4,0,0.2,1);
  position: fixed;
  left: -30vw;
  top: 2em;
  width: 160vw;
  z-index: 10000;
  transform: rotate(-15deg);
  text-align: center;
  font-weight: bold;
  font-size: 1.3rem;
  padding: 0.85em 0;
  box-shadow: 0 2px 12px rgba(0,0,0,0.13);
  pointer-events: none;
  opacity: 0.97;
  color: inherit;
  background: inherit;
}

@keyframes banner-slide-down {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}