html,body{background:#999;width:100%;height:100%;margin:0;padding:0}.wrapper{flex-direction:column;width:100%;height:100%;display:flex}.game{flex:1}#root{width:100%;height:100%}.menu{box-sizing:border-box;background:#fff;border-top:1px solid #ddd;flex-shrink:0;justify-content:space-between;align-items:center;width:100%;height:56px;padding:0 16px;display:flex}.menu-left,.menu-right{align-items:center;gap:12px;display:flex}.menu select,.menu button{color:#222;background:#fafafa;border:1px solid #ccc;border-radius:6px;height:36px;padding:0 12px;font-size:14px;line-height:1}.menu button{color:#fff;cursor:pointer;background:#1b1b1b;border-color:#1b1b1b}.menu button:hover{background:#2a2a2a}.menu button:active{transform:translateY(1px)}