body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #000;
}

/* Remove spin of input type number */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    /* display: none; <- Crashes Chrome on hover */
  -webkit-appearance: none;
  margin: 0; /* <-- Apparently some margin are still there even though it's hidden */
}

canvas {
  background-color: rgba(0, 0, 0, 0);
}

#GameDiv {
  position: relative;
  width: 100vw;
  height: 100vh;
  max-width: calc(9 / 16 * 100vh);
  /* 保持 9:16 比例 */
  max-height: calc(16 / 9 * 100vw);
  overflow: hidden;
}

#Cocos3dGameContainer, #GameCanvas {
  width: 100%;
  height: 100%;
}

:root {
  --safe-top: env(safe-area-inset-top);
  --safe-right: env(safe-area-inset-right);
  --safe-bottom: env(safe-area-inset-bottom);
  --safe-left: env(safe-area-inset-left);
}