/* Css for , Version=1774246037 */
 
        :root {
            --primary-blue: #0056b3; /* 品牌主色调 */
            --text-main: #333;
            --text-gray: #666;
            --bg-color: #f7f9fc;
            --module-bg: #ffffff;
            --highlight-color: #e32636; /* 关键数据强调色：红色 */
            --chem-color: #008080; /* 化学名称强调色：青色 */
            --tab-border: #e0e0e0;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
            margin: 0;
            padding: 0;
            background-color: var(--bg-color);
            color: var(--text-main);
            overflow-x: hidden;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        /* 顶部 Header */
        header {
            text-align: center;
            padding: 30px 20px 40px;
        }

        .company-name {
            font-size: 1.5rem;
            font-weight: 700;
            color: #000;
            margin-bottom: 5px;
            letter-spacing: 1px;
            display: none; /* 隐藏原公司名，因为已合并到H1 */
        }

        /* 主标题字体大小缩小一倍：2.8rem -> 1.4rem */
        h1 {
            font-size: 1.4rem; /* 缩小一倍 */
            margin: 0;
            color: var(--primary-blue);
            letter-spacing: 1px;
        }

        h1 span {
            font-weight: 700;
            color: var(--primary-blue);
        }

        p.subtitle {
            font-size: 1.1rem;
            color: var(--text-gray);
            margin-top: 15px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
            font-weight: normal;
        }

        /* 主内容区域 - 宽度保持 90% */
        .main-container {
            max-width: 1200px;
            width: 90%;
            margin: 0 auto;
            padding: 0 0 60px;
            flex: 1;
        }

        /* 3D 容器 */
        #canvas-container {
            width: 100%;
            height: 450px;
            margin: 0 auto 30px;
            position: relative;
            background: var(--module-bg);
            border-radius: 18px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.08);
        }

        /* 交互提示 */
        .interaction-hint {
            font-size: 13px;
            position: absolute;
            bottom: 15px;
            left: 50%;
            transform: translateX(-50%);
            color: #888;
            background: rgba(255,255,255,0.7);
            padding: 6px 15px;
            border-radius: 25px;
            border: 1px solid #eee;
            z-index: 11;
        }

        /* --- 标签 (Tab) 导航栏 --- */
        .tab-nav {
            display: flex;
            justify-content: center;
            border-bottom: 2px solid var(--tab-border);
            margin-bottom: 20px;
        }

        .tab-button {
            background: none;
            border: none;
            padding: 15px 15px; /* 适应4个标签 */
            font-size: 1.2rem;
            cursor: pointer;
            color: var(--text-gray);
            transition: all 0.3s ease;
            position: relative;
            font-weight: 600;
            white-space: nowrap; /* 防止换行 */
        }

        .tab-button.active {
            color: var(--primary-blue);
        }

        .tab-button::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary-blue);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .tab-button.active::after {
            transform: scaleX(1);
        }

        /* --- 内容区域 --- */
        .tab-content {
            padding: 30px;
            background: var(--module-bg);
            border-radius: 0 0 12px 12px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            min-height: 250px;
        }

        .content-item {
            display: none;
            animation: fadeIn 0.5s ease-in-out;
        }

        .content-item.active {
            display: block;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* 卡片内容标题字体大小缩小一倍：2rem -> 1rem */
        .content-item h3 {
            font-size: 1rem;
            color: var(--primary-blue);
            margin-top: 0;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            font-weight: 700;
        }

        .content-item h3 svg {
            margin-right: 15px;
            width: 24px; /* 相应缩小图标大小 */
            height: 24px;
        }

        .content-item p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: #555;
            margin: 0 0 15px 0;
            font-weight: normal;
        }

        /* --- 强调样式 (已移除文字效果，仅保留化学名和关键数据颜色) --- */
        .content-item strong {
            font-weight: normal; 
            color: inherit;
        }

        .highlight-chem {
            color: var(--chem-color);
            font-weight: 700;
        }

        .highlight-metric {
            color: var(--highlight-color);
            font-weight: 800;
            font-size: 1.1em;
        }

        .tag-group {
            margin-top: 20px;
        }
        .tag {
            font-size: 0.9rem;
            display: inline-block;
            margin-right: 10px;
            padding: 5px 12px;
            background: #e6f0ff;
            color: var(--primary-blue);
            border-radius: 6px;
            font-weight: 600;
            line-height: 1.2;
        }

        /* 响应式 */
        @media (max-width: 768px) {
            h1 { font-size: 1.2rem; } /* 确保在小屏幕上仍然可读 */
            .main-container { width: 95%; }
            #canvas-container { height: 300px; }
            .tab-button { font-size: 0.9rem; padding: 15px 8px; } /* 小屏幕上进一步缩小标签 */
            .tab-nav { flex-wrap: wrap; }
        }

        footer {
            font-size: 0.9rem;
            text-align: center;
            padding: 20px;
            color: #ccc;
        }

        /* Three.js CSS2D Renderer Styles */
        .css-label-renderer {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
        }
        .atom-label {
            font-size: 14px;
            color: white;
            padding: 2px 5px;
            border-radius: 4px;
            font-weight: bold;
            text-shadow: 0 0 3px rgba(0,0,0,0.5);
            pointer-events: none;
            transform: translate(-50%, -50%);
        }

        .si-label { background-color: var(--primary-blue); }
        .h-label { background-color: #666; color: #eee; }
        .cl-label { background-color: #28a745; }