html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.marquee {
  margin: 0;
  font-weight: 800;
  font-size: clamp(28px, 9vw, 46px);
  line-height: 1.2;
  font-family: inherit;
  text-align: center;
}

.marquee span {
  display: inline-block;
  color: #fff7e6;
  animation: bulb 2s linear infinite;
  animation-delay: calc(var(--i, 0) * 120ms);
}

.marquee__gap {
  width: 0.3em;
}

@keyframes bulb {
  0%, 40%, 100% {
    opacity: 1;
  }
  47% {
    opacity: 0.22;
  }
  54% {
    opacity: 1;
  }
}
@media (prefers-reduced-motion: reduce) {
  .marquee span {
    animation: none;
  }
}