.hero h1 {
  font-size: clamp(44px, 4.9vw, 84px);
  letter-spacing: -.04em;
  transform-origin: left center;
}

.hero h1 em { white-space: nowrap; }
.hero .hero-copy, .hero .hero-aside { position: relative; z-index: 4; }

.hero h1.tianji-opening-original {
  opacity: 1;
  transition: opacity .22s ease-out;
}

.hero .tianji-opening-compact {
  position: absolute;
  margin: 0;
  opacity: 0;
  pointer-events: none;
  color: inherit;
  font: 500 clamp(30px, 3.15vw, 42px)/1.18 Georgia, "Songti SC", serif;
  letter-spacing: -.035em;
  transform-origin: left center;
  transition: opacity .32s ease;
}

.hero .tianji-opening-compact em {
  font-style: normal;
  color: #f0c995;
  text-shadow: 0 2px 18px #0005;
}

.hero .tianji-opening-compact .headline-tail {
  display: block;
  white-space: nowrap;
}

.hero-copy.tianji-opening-compact-active h1.tianji-opening-original { opacity: 0; }
.hero-copy.tianji-opening-compact-active .tianji-opening-compact {
  opacity: 1;
  transition: opacity .32s ease .18s;
  animation: tianji-opening-settle 1.15s both;
}
.hero-copy.tianji-opening-returning .tianji-opening-compact {
  opacity: 0;
  transition: opacity .28s ease;
}
.hero-copy.tianji-opening-returning h1.tianji-opening-original { opacity: 0; }
.hero-copy.tianji-opening-restoring h1.tianji-opening-original {
  opacity: 1;
  transition: opacity .48s cubic-bezier(.22, 1, .36, 1);
}

.hero h1.tianji-opening-original.tianji-opening-pushed {
  animation: tianji-opening-spring 1.5s both;
}

@keyframes tianji-opening-spring {
  0% { transform: translateX(0) rotate(0); }
  28% { transform: translateX(min(3vw, 38px)) rotate(.85deg); }
  42% { transform: translateX(min(3.3vw, 42px)) rotate(1deg); }
  68% { transform: translateX(-7px) rotate(-.2deg); }
  83% { transform: translateX(3px) rotate(.08deg); }
  93% { transform: translateX(-1px) rotate(0); }
  100% { transform: translateX(0) rotate(0); }
}

@keyframes tianji-opening-settle {
  0% { transform: translateX(min(3vw, 38px)) rotate(.8deg); }
  54% { transform: translateX(-6px) rotate(-.15deg); }
  76% { transform: translateX(2px) rotate(.06deg); }
  100% { transform: translateX(0) rotate(0); }
}

.hero #tianji-opening-canvas {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 70%;
  height: auto;
  aspect-ratio: 16 / 9;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 3;
}

@media (max-width: 650px) {
  .hero h1 { font-size: 8vw; letter-spacing: -.02em; }
  .hero .tianji-opening-compact { font-size: clamp(25px, 6.5vw, 34px); }
  .hero #tianji-opening-canvas { width: 115%; top: 35%; }
}

@media (prefers-reduced-motion: reduce) {
  .hero #tianji-opening-canvas { display: none; }
}