/* 样式重置与核心变量 */
        :root {
            --primary: #4f46e5;
            --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #db2777 100%);
            --accent-pink: #db2777;
            --accent-orange: #ea580c;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --border-color: #e2e8f0;
            --container-width: 1200px;
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 统一布局容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition-smooth);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            height: 100%;
        }

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 20px;
        }

        .nav-menu a {
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition-smooth);
        }

        .nav-menu a:hover {
            color: var(--primary);
        }

        .nav-btns {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn-outline {
            padding: 8px 16px;
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            text-decoration: none;
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition-smooth);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }

        .btn-primary {
            padding: 8px 20px;
            background: var(--primary-gradient);
            color: white;
            border-radius: 6px;
            text-decoration: none;
            font-weight: bold;
            font-size: 14px;
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
            transition: var(--transition-smooth);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition-smooth);
        }

        /* 核心首屏 (Hero Section) - 严格无图，使用高饱和渐变与卡片 */
        .hero {
            padding: 160px 0 80px 0;
            background: radial-gradient(circle at 80% 20%, rgba(219, 39, 119, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 20% 80%, rgba(79, 70, 229, 0.08) 0%, transparent 50%),
                        var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }

        .hero-content {
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 25px;
            border: 1px solid rgba(79, 70, 229, 0.2);
        }

        .hero h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 25px;
            letter-spacing: -0.5px;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }

        .btn-large {
            padding: 14px 32px;
            font-size: 16px;
        }

        /* 核心特色卡片（首屏下部数据卡片） */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            transition: var(--transition-smooth);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(79, 70, 229, 0.1);
        }

        .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 通用区块样式 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 关于我们与平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
            line-height: 1.8;
        }

        .features-list {
            list-style: none;
        }

        .features-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 15px;
            font-size: 15px;
            color: var(--text-dark);
            font-weight: 500;
        }

        .features-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 0;
            color: var(--accent-pink);
            font-weight: bold;
            font-size: 18px;
        }

        /* 标签云 - AI模型聚合展示 */
        .model-cloud {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

        .tags-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .model-tag {
            padding: 8px 16px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition-smooth);
        }

        .model-tag:hover {
            background: var(--primary-gradient);
            color: white;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* AIGC 服务能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary-gradient);
            opacity: 0;
            transition: var(--transition-smooth);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.06);
            border-color: rgba(79, 70, 229, 0.2);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            font-size: 32px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .case-img-wrapper {
            position: relative;
            width: 100%;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #e2e8f0;
        }

        .case-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

        .case-card:hover .case-img-wrapper img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 20px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(219, 39, 119, 0.1);
            color: var(--accent-pink);
            border-radius: 4px;
            font-size: 11px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .case-info h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .case-info p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 流程步骤与时间线 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            position: relative;
        }

        .process-step {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 45px;
            height: 45px;
            background: var(--primary-gradient);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            margin: 0 auto 20px auto;
            box-shadow: 0 4px 10px rgba(79, 70, 229, 0.2);
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测板块 */
        .review-table-wrapper {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
            overflow-x: auto;
        }

        .rating-hero {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(219, 39, 119, 0.05) 100%);
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 30px;
            border: 1px dashed rgba(79, 70, 229, 0.2);
        }

        .rating-stars {
            display: flex;
            gap: 5px;
            color: #fbbf24;
            font-size: 24px;
        }

        .rating-score {
            text-align: right;
        }

        .score-val {
            font-size: 38px;
            font-weight: 900;
            color: var(--primary);
        }

        .score-max {
            font-size: 18px;
            color: var(--text-muted);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .compare-table th, .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        .compare-table th {
            font-weight: 700;
            background: var(--bg-light);
            color: var(--text-dark);
        }

        .compare-table td strong {
            color: var(--accent-pink);
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .price-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
        }

        .price-header {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-dark);
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
        }

        .price-list {
            list-style: none;
        }

        .price-item {
            display: flex;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        .price-item:last-child {
            border-bottom: none;
        }

        .price-item .model-name {
            font-weight: 600;
            color: var(--text-dark);
        }

        .price-item .model-val {
            color: var(--accent-orange);
            font-weight: bold;
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .train-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition-smooth);
        }

        .train-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(79, 70, 229, 0.08);
        }

        .train-badge {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            border-radius: 4px;
            font-size: 11px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .train-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .train-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .train-features {
            list-style: none;
            padding-top: 15px;
            border-top: 1px solid var(--border-color);
        }

        .train-features li {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
            position: relative;
            padding-left: 18px;
        }

        .train-features li::before {
            content: "•";
            color: var(--primary);
            position: absolute;
            left: 0;
            font-size: 16px;
            top: -2px;
        }

        /* 常见用户问题 FAQ (折叠面板) */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .faq-question {
            padding: 20px;
            font-weight: 700;
            font-size: 15px;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: "+";
            font-size: 20px;
            color: var(--text-muted);
            transition: var(--transition-smooth);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            transition: var(--transition-smooth);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-item.active .faq-answer {
            padding-bottom: 20px;
            max-height: 200px; /* 足够容纳文本即可 */
        }

        /* AI术语百科 & 知识库 */
        .encyclopedia-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .wiki-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
        }

        .wiki-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .wiki-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 资讯与最新文章 */
        .news-section {
            background: var(--bg-white);
        }

        .articles-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }

        .article-link-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            text-decoration: none;
            color: var(--text-dark);
            transition: var(--transition-smooth);
        }

        .article-link-card:hover {
            transform: translateX(5px);
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.05);
        }

        .article-title {
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 80%;
        }

        .article-arrow {
            color: var(--primary);
            font-weight: bold;
        }

        /* 客户评论卡片 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .comment-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.01);
            position: relative;
        }

        .comment-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }

        .comment-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
        }

        .author-info h4 {
            font-size: 13px;
            font-weight: 700;
        }

        .author-info p {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* 智能需求匹配与联系我们 (表单板块) */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }

        .form-container {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            background: var(--bg-light);
            transition: var(--transition-smooth);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px;
            background: var(--primary-gradient);
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-smooth);
        }

        .form-submit-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.3);
        }

        .contact-info-panel {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            margin-bottom: 20px;
        }

        .info-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .info-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 15px;
        }

        .qr-item {
            text-align: center;
        }

        .qr-item img {
            width: 100px;
            height: 100px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 6px;
        }

        .qr-item span {
            font-size: 11px;
            color: var(--text-muted);
            display: block;
        }

        /* 浮动客服 */
        .floating-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: var(--primary-gradient);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            cursor: pointer;
            text-decoration: none;
            font-weight: bold;
            font-size: 12px;
            transition: var(--transition-smooth);
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.05);
        }

        .float-btn-qr {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: white;
            padding: 10px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
        }

        .float-btn-qr img {
            width: 120px;
            height: 120px;
        }

        .float-btn-qr span {
            font-size: 10px;
            color: var(--text-muted);
            display: block;
            margin-top: 5px;
        }

        .float-btn:hover .float-btn-qr {
            display: block;
        }

        /* 页脚区域 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 13px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
            border-bottom: 1px solid #1e293b;
            padding-bottom: 40px;
        }

        .footer-brand h3 {
            color: white;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .footer-brand p {
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .footer-links h4 {
            color: white;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links ul li {
            margin-bottom: 10px;
        }

        .footer-links ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition-smooth);
        }

        .footer-links ul li a:hover {
            color: white;
        }

        /* 友情链接 */
        .friend-links {
            margin-bottom: 30px;
            padding-top: 20px;
            border-top: 1px solid #1e293b;
        }

        .friend-links-title {
            color: white;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-list a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition-smooth);
        }

        .friend-links-list a:hover {
            color: white;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom p {
            color: #64748b;
        }

        /* 动画控制 */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .case-grid, .training-grid, .comments-grid, .encyclopedia-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: white;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-cta {
                flex-direction: column;
                align-items: center;
            }
            .about-grid {
                grid-template-columns: 1fr;
            }
            .services-grid, .case-grid, .training-grid, .comments-grid, .encyclopedia-grid {
                grid-template-columns: 1fr;
            }
            .process-flow {
                grid-template-columns: 1fr;
            }
            .token-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }
        }