�拖拽, 材质高亮,局部辉光,three.js模型加载">
    <style>
        #loading-mask {
            position: fixed;
            top: 0;
            left: 0;
            z-index: 9999;
            width: 100%;
            height: 100%;
            overflow: hidden;
            user-select: none;
            background: #ffffff
        }

        .loading-wrapper {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -100%)
        }

     