body {
    cursor: default;
    padding: 0;
    border: 0;
    margin: 0;
    text-align: center;
    background-color: black;
    font-family: Helvetica, Verdana, Arial, sans-serif;
    /* 确保body占满整个视口 */
    height: 100vh;
    overflow: hidden;
  }
  
  body, canvas, div {
    outline: none;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    -khtml-user-select: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  }
  
  /* 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 {
      margin: 0 auto;
      position: relative;
      border: 5px solid black;
      border-radius: 10px;
      box-shadow: 0 5px 50px #333;
      /* 保持750:1334的宽高比，高度自适应浏览器 */
      height: calc(100vh - 20px); /* 减去一些边距 */
      width: calc((100vh - 20px) * 750 / 1334); /* 根据高度计算宽度，保持750:1334比例 */
      max-width: 90vw; /* 确保不会超出屏幕宽度 */
  }
  
  #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);
  }