html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: #05060a;
}

.video-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
}

.hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  object-fit: cover; 
  width: 100%;
  height: 100%;
}

/* 热点样式 */
.hotspot {
  position: absolute;
  width: 24px;
  height: 24px;
  background: #606060;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 10;
}
.hotspot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 9px;
  background: #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  z-index: 11;
}
.hotspot::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background: rgba(61, 61, 61, 0.5);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
  animation: ripple 2s infinite;
  z-index: 9;
}
.hotspot:hover {
  background: radial-gradient(circle, #fff 5%, orange 70%);
  transform: translate(-50%, -50%) scale(1.2);
  box-shadow: 0 0 10px rgba(255, 165, 0, 0.9);
}
@keyframes ripple {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
  100% { transform: translate(-50%, -50%) scale(3); opacity: 0; }
}

.bubble {
  position: absolute;
  border: 2px solid #fff;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  z-index: 20;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.bubble.show {
  opacity: 1;
  pointer-events: auto;
}
.bubble-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}