body { padding: 0; margin: 0 }
#unity-container { position: absolute }
#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-canvas { width: 100%;
    height: 100%;
    background: url('background.jpg') no-repeat;
    background-size: cover;
    background-position: center; } 
/* .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: 350px;
    height: 350px;
    background: url('iconGif.gif') no-repeat center;
    background-size: 25%;
    position: absolute; /* 添加 position 属性 */
    left: 50%; /* 水平居中 */
    top: calc(50% + 250px); /* 垂直居中偏下 100px */
    transform: translate(-50%, -50%); /* 使元素的中心点对齐 */
}
/* #unity-logo { width: 154px; height: 130px; background: url('unity-logo-dark.png') no-repeat center } */
#unity-progress-bar-empty { width: 141px; height: 18px; margin-top: 10px; margin-left: 6.5px; background: url('progress-bar-empty-dark.png') no-repeat center }
#unity-progress-bar-full { width: 0%; height: 18px; margin-top: 10px; background: url('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('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 }
canvas:focus {
    outline: none;  
    box-shadow: none;
}
@media (orientation: landscape) {
    #unity-canvas {
        /* background-size: contain; 确保背景图在横屏模式下完整显示 */
        width: 100%;
        height: 100%;
        background: url('lanBg.jpg') no-repeat;
        background-size: cover;
        background-position: center;
    }

    #unity-logo {
        top: calc(50% + 150px); /* 调整图标位置，使其在横屏模式下可见 */
    }
}