body {
  margin: 0;
  overflow: hidden;
  background: black;
}

canvas {
  display: block;
}

/* 可选: 添加简单的加载提示美化 (不影响功能) */
.aframe-loading {
  position: fixed;
  bottom: 10px;
  left: 10px;
  color: white;
  background: rgba(0,0,0,0.5);
  padding: 5px 10px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 12px;
  pointer-events: none;
  z-index: 100;
}