:root{--bg-color: #D3D3D3;--text-color: #333333}body,html{margin:0;padding:0;width:100%;height:100%;overflow:hidden;background-color:var(--bg-color);font-family:Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:none}#root{width:100%;height:100%;position:relative;display:flex;justify-content:center;align-items:center}.app-container{width:100%;height:100%;position:relative}