:root {
            --primary: #00b4d8;
            --primary-hover: #0077b6;
            --secondary: #00f5d4;
            --dark-bg: #0f172a;
            --light-bg: #f8fafc;
            --card-bg: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-hover: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--light-bg);
            color: var(--text-main);
            line-height: 1.6;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2rem;
            color: #0f3b46;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            margin: 8px auto 0;
            border-radius: 2px;
        }

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

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 3px rgba(0,0,0,0.05);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            background: linear-gradient(135deg, #0077b6, #00f5d4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
            gap: 20px;
        }

        nav a {
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
        }

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

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #0f3b46;
            padding: 8px 18px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: var(--shadow);
        }

        .nav-btn:hover {
            opacity: 0.9;
            transform: translateY(-1px);
            color: #0f3b46;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Hero 首屏（无图片，采用渐变青科技风） */
        .hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 80% 20%, rgba(0, 245, 212, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 20% 80%, rgba(0, 180, 216, 0.15) 0%, transparent 50%),
                        var(--light-bg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(255,255,255,0) 60%, var(--light-bg) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            color: #0f3b46;
            margin-bottom: 20px;
            font-weight: 800;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary), #0077b6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #0f3b46;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 10px 20px rgba(0, 180, 216, 0.2);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(0, 180, 216, 0.3);
            color: #0f3b46;
        }

        .btn-secondary {
            background-color: #ffffff;
            color: var(--primary-hover);
            border: 2px solid var(--primary);
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* 数据指标卡片 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
            position: relative;
            z-index: 2;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(0, 180, 216, 0.15);
            backdrop-filter: blur(10px);
            padding: 25px 20px;
            border-radius: 16px;
            text-align: center;
            transition: var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-5px);
            border-color: var(--secondary);
            box-shadow: var(--shadow-hover);
        }

        .metric-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0f3b46;
            margin-bottom: 5px;
            background: linear-gradient(135deg, var(--primary), var(--primary-hover));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 通用区块间距 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(0, 180, 216, 0.05);
        }

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

        .about-info h3 {
            font-size: 1.6rem;
            color: #0f3b46;
            margin-bottom: 15px;
        }

        .about-info p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .about-feat-item {
            background-color: #fff;
            padding: 20px;
            border-radius: 12px;
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow);
        }

        .about-feat-item h4 {
            font-size: 1.05rem;
            color: #0f3b46;
            margin-bottom: 8px;
        }

        .about-feat-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* AIGC 服务能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

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

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 180, 216, 0.2);
        }

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

        .service-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 180, 216, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary-hover);
            font-size: 1.5rem;
        }

        .service-card h3 {
            font-size: 1.25rem;
            color: #0f3b46;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tag {
            background-color: var(--light-bg);
            color: var(--primary-hover);
            font-size: 0.75rem;
            padding: 4px 8px;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 标签云 (全平台支持的AI模型) */
        .tag-cloud-wrapper {
            background-color: #fff;
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--shadow);
            margin-top: 40px;
            text-align: center;
        }

        .tag-cloud-wrapper h3 {
            color: #0f3b46;
            margin-bottom: 25px;
            font-size: 1.3rem;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .tag-item {
            background: linear-gradient(135deg, rgba(0, 180, 216, 0.05), rgba(0, 245, 212, 0.05));
            border: 1px solid rgba(0, 180, 216, 0.1);
            color: #0f3b46;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .tag-item:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-color: transparent;
            color: #0f3b46;
            transform: scale(1.05);
        }

        /* 标准化流程 & 时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 40px auto 0;
            padding-left: 30px;
            border-left: 2px solid var(--border-color);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 40px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -37px;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.2);
        }

        .timeline-num {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
            margin-bottom: 5px;
            display: block;
        }

        .timeline-title {
            font-size: 1.15rem;
            color: #0f3b46;
            margin-bottom: 8px;
        }

        .timeline-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background-color: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow);
            margin-top: 30px;
            border: 1px solid var(--border-color);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }

        th {
            background-color: rgba(0, 180, 216, 0.05);
            color: #0f3b46;
            font-weight: 700;
        }

        tr:last-child td {
            border-bottom: none;
        }

        .highlight-col {
            background-color: rgba(0, 245, 212, 0.05);
            font-weight: 600;
        }

        .badge-star {
            background-color: #ffb703;
            color: #fff;
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 700;
        }

        /* 客户案例与媒体展示 */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .gallery-item {
            background-color: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .gallery-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .gallery-img-container {
            width: 100%;
            aspect-ratio: 16/10;
            overflow: hidden;
            background-color: #eaeaea;
        }

        .ai-page-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .gallery-item:hover .ai-page-image {
            transform: scale(1.05);
        }

        .gallery-info {
            padding: 20px;
        }

        .gallery-info h4 {
            color: #0f3b46;
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .gallery-info p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 0;
        }

        /* AI术语百科 & 帮助中心 */
        .encyclopedia-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .encyclopedia-card {
            background-color: #fff;
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .encyclopedia-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .encyclopedia-card h4 {
            color: var(--primary-hover);
            margin-bottom: 8px;
            font-size: 1rem;
        }

        .encyclopedia-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* FAQ 折叠面板 */
        .faq-wrapper {
            max-width: 800px;
            margin: 40px auto 0;
        }

        .faq-item {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: #0f3b46;
            user-select: none;
        }

        .faq-question span {
            font-size: 1.05rem;
        }

        .faq-icon {
            font-size: 1.2rem;
            transition: var(--transition);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--light-bg);
        }

        .faq-answer-inner {
            padding: 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid var(--border-color);
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* 客户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 35px;
        }

        .comment-card {
            background-color: #fff;
            padding: 25px;
            border-radius: 16px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .comment-text {
            font-size: 0.95rem;
            color: var(--text-main);
            margin-bottom: 20px;
            font-style: italic;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
        }

        .comment-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .comment-info h5 {
            color: #0f3b46;
            font-size: 0.9rem;
            margin-bottom: 2px;
        }

        .comment-info span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 资讯知识库 (最新文章) */
        .articles-wrapper {
            background-color: #fff;
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--shadow);
            margin-top: 30px;
        }

        .articles-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 25px;
        }

        .article-card {
            padding: 15px;
            border-radius: 8px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .article-card:hover {
            background-color: var(--light-bg);
        }

        .article-card h4 {
            font-size: 1.05rem;
            color: #0f3b46;
        }

        .article-card a {
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 智能匹配与联系我们表单 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: flex-start;
        }

        .contact-info-panel {
            background: linear-gradient(135deg, #0f3b46, #071e24);
            color: #fff;
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--shadow);
        }

        .contact-info-panel h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--secondary);
        }

        .contact-info-panel p {
            color: #cbd5e1;
            margin-bottom: 30px;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 40px;
        }

        .contact-detail-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .contact-detail-icon {
            width: 40px;
            height: 40px;
            background-color: rgba(0, 245, 212, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
        }

        .contact-detail-text span {
            display: block;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .contact-detail-text strong {
            font-size: 0.95rem;
        }

        .qr-codes {
            display: flex;
            gap: 30px;
            align-items: center;
        }

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

        .qr-item img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            margin-bottom: 8px;
            border: 3px solid rgba(255,255,255,0.1);
        }

        .qr-item p {
            font-size: 0.8rem;
            color: #94a3b8;
            margin-bottom: 0;
        }

        .form-panel {
            background-color: #fff;
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .form-panel h3 {
            color: #0f3b46;
            margin-bottom: 25px;
            font-size: 1.4rem;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            color: #0f3b46;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 0.95rem;
            transition: var(--transition);
            background-color: var(--light-bg);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
            background-color: #fff;
        }

        select.form-control {
            cursor: pointer;
        }

        .btn-submit {
            width: 100%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #0f3b46;
            border: none;
            padding: 14px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .btn-submit:hover {
            opacity: 0.95;
            transform: translateY(-1px);
        }

        /* 友情链接与页脚 */
        footer {
            background-color: #0b1329;
            color: #94a3b8;
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1.5fr 1.5fr;
            gap: 50px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 1.2rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.8;
        }

        .footer-links h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 1rem;
        }

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

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

        .footer-links ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
        }

        .footer-links ul li a:hover {
            color: var(--secondary);
        }

        .friend-links-area {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 25px;
            margin-bottom: 25px;
        }

        .friend-links-area h5 {
            color: #fff;
            font-size: 0.9rem;
            margin-bottom: 12px;
        }

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

        .friend-links-list a {
            color: #64748b;
            font-size: 0.8rem;
        }

        .friend-links-list a:hover {
            color: var(--secondary);
        }

        .copyright-area {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 25px;
            text-align: center;
            font-size: 0.8rem;
        }

        .copyright-area p {
            margin-bottom: 5px;
        }

        /* 浮动客服与工具 */
        .floating-tools {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: #fff;
            border-radius: 50%;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
            color: var(--primary-hover);
        }

        .float-btn:hover {
            background-color: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .float-btn svg {
            width: 22px;
            height: 22px;
            fill: currentColor;
        }

        .float-popover {
            position: absolute;
            right: 65px;
            bottom: 0;
            background-color: #fff;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            padding: 15px;
            width: 150px;
            text-align: center;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .float-btn:hover .float-popover {
            opacity: 1;
            visibility: visible;
        }

        .float-popover img {
            width: 120px;
            height: 120px;
            border-radius: 4px;
            margin-bottom: 8px;
        }

        .float-popover p {
            font-size: 0.75rem;
            color: var(--text-main);
            margin: 0;
        }

        .back-to-top {
            display: none;
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-wrapper {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .gallery-grid {
                grid-template-columns: 1fr 1fr;
            }
            .gallery-item:last-child {
                grid-column: span 2;
            }
            .comments-grid {
                grid-template-columns: 1fr;
            }
            .contact-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            nav {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #fff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow);
            }
            nav.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero {
                padding: 120px 0 60px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .gallery-grid {
                grid-template-columns: 1fr;
            }
            .gallery-item:last-child {
                grid-column: span 1;
            }
            .articles-list {
                grid-template-columns: 1fr;
            }
            .qr-codes {
                justify-content: space-around;
            }
        }