/* Css for , Version=1774246037 */
 
        /* 使用局部变量范围，防止污染 */
        #bcl3-wrapper {
            --bcl3-bg: #ffffff;
            --bcl3-text: #333;
            --bcl3-blue: #0056b3;
        }
        #bcl3-wrapper {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: var(--bcl3-bg);
            color: var(--bcl3-text);
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 100%;
        }
        /* 顶部 Header */
        #bcl3-wrapper header {
            text-align: center; 
            padding: 20px 20px 10px;
            width: 100%;
        }
        #bcl3-wrapper h1 {
            font-size: 36px;
            margin: 0;
            color: var(--bcl3-text);
            letter-spacing: 1px;
            line-height: 1.2;
        }
        #bcl3-wrapper h1 span {
            font-weight: 300;
            color: var(--bcl3-blue);
            font-size: 36px;
        }
        /* 3D 容器 - ID已修改为唯一 */
        #bcl3-canvas-container {
            width: 90%;
            max-width: 800px;
            height: 375px; 
            position: relative;
            margin: 20px 0;
            border: 1px solid #eee;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            border-radius: 8px;
            background: #f8f8f8; /* 增加底色，确保即使模型未加载也不是纯白 */
        }
        /* CSS 3D 渲染器容器 */
        #bcl3-wrapper .css-label-renderer {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
        }
        /* 交互提示 */
        #bcl3-wrapper .interaction-hint {
            font-size: 14px;
            position: absolute;
            bottom: 15px;
            left: 50%;
            transform: translateX(-50%);
            color: #aaa;
            pointer-events: none;
            background: rgba(255,255,255,0.9);
            padding: 5px 12px;
            border-radius: 20px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            z-index: 11;
            white-space: nowrap;
        }
        /* 原子标签样式 */
        #bcl3-wrapper .atom-label {
            font-size: 16px; 
            color: black; /* 确保文字黑色 */
            padding: 3px 6px;
            border-radius: 4px;
            font-weight: bold;
            text-shadow: 0 0 3px rgba(255,255,255,0.8);
            pointer-events: none;
            margin-top: -15px;
            margin-left: -10px;
        }
        #bcl3-wrapper .b-label {
            background-color: #ffb5b5;
        }
        #bcl3-wrapper .cl-label {
            background-color: #2eff2e;
        }
        @media (max-width: 768px) {
            #bcl3-canvas-container {
                height: 300px; 
            }
            #bcl3-wrapper h1 {
                font-size: 28px;
            }
            #bcl3-wrapper h1 span {
                font-size: 28px;
            }
        }