body { padding: 0; margin: 0; overflow: hidden; }
#sidebar {
  position: absolute;
  top: 0;
  left: -250px; /* 預設隱藏在左邊 */
  width: 250px;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  padding: 20px;
  box-sizing: border-box;
  z-index: 10;
  transition: left 0.3s ease;
}
#sidebar.show {
  left: 0; /* 顯示時滑入 */
}
/* 關閉按鈕 */
#close-sidebar {
  background: transparent;
  border: none;
  color: white;
  font-size: 18px;
  cursor: pointer;
  position: absolute;
  top: 10px;
  right: 10px;
}

/* 開啟按鈕 */
#open-sidebar {
  position: absolute;
  top: 100px;
  left: 20px;
  background: rgba(0, 0, 0, 0.6);
  border: none;
  color: white;
  padding: 8px 12px;
  font-size: 16px;
  cursor: pointer;
  z-index: 9;
}
#unity-container { position: absolute; width: 100vw; height: 100vh; overflow: hidden;}
#unity-container.unity-desktop { left: 50%; top: 50%; transform: translate(-50%, -50%) }
#unity-container.unity-mobile { position: fixed; width: 100%; height: 100% }
#unity-canvas { background: #231F20 }
.unity-mobile #unity-canvas { width: 100%; height: 100% }
#unity-loading-bar { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: none }
#unity-logo { width: 154px; height: 130px; background: url('../TemplateData/unity-logo-dark.png') no-repeat center }
#unity-progress-bar-empty { width: 141px; height: 18px; margin-top: 10px; margin-left: 6.5px; background: url('../TemplateData/progress-bar-empty-dark.png') no-repeat center }
#unity-progress-bar-full { width: 0%; height: 18px; margin-top: 10px; background: url('../TemplateData/progress-bar-full-dark.png') no-repeat center }
#unity-footer { position: relative }
.unity-mobile #unity-footer { display: none }
#unity-webgl-logo { float:left; width: 204px; height: 38px; background: url('../TemplateData/webgl-logo.png') no-repeat center }
#unity-build-title { float: right; margin-right: 10px; line-height: 38px; font-family: arial; font-size: 18px }
#unity-fullscreen-button { cursor:pointer; float: right; width: 38px; height: 38px; background: url('fullscreen-button.png') no-repeat center }
#unity-warning { position: absolute; left: 50%; top: 5%; transform: translate(-50%); background: white; padding: 10px; display: none }