:root {
            --bg-main: #f8fafc;
            --bg-card: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #64748b;
            --primary: #7c3aed; /* 霓虹紫 */
            --accent: #f97316;  /* 活力橙 - 形成强力撞色 */
            --accent-green: #10b981; /* 极光绿 */
            --border-color: #e2e8f0;
            --container-max-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* Reset & Base */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            position: relative;
            overflow-x: hidden;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

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

        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* Typography */
        h1, h2, h3, h4 {
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
        }

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

        .section-header h2 {
            font-size: 2.25rem;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            gap: 8px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.6);
            background-color: #6d28d9;
        }

        .btn-accent {
            background-color: var(--accent);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.4);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.6);
            background-color: #ea580c;
        }

        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--text-primary);
            color: var(--text-primary);
        }

        .btn-outline:hover {
            background-color: var(--text-primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

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

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

        .logo-wrap img {
            height: 40px;
            width: auto;
        }

        .logo-text {
            font-size: 1.5rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-link:hover {
            color: var(--primary);
            background-color: rgba(124, 58, 237, 0.05);
        }

        .nav-actions {
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
        }

        /* Hero Section (No Image) */
        .hero-section {
            background: linear-gradient(135deg, #e0f2fe 0%, #f1f5f9 100%);
            padding: 120px 0 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 70%);
            top: -50px;
            left: -50px;
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(249,115,22,0.1) 0%, transparent 70%);
            bottom: -100px;
            right: -50px;
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-block;
            background-color: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 24px;
            border: 1px solid rgba(124, 58, 237, 0.2);
            letter-spacing: 1px;
        }

        .hero-title {
            font-size: 3.2rem;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero-title span {
            background: linear-gradient(90deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.7;
        }

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

        /* Stats Cards (Embedded in Home block) */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
        }

        .stat-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
            border-color: var(--primary);
        }

        .stat-num {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-num span {
            color: var(--accent);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* About Us Section */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .about-text p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .about-feat-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .about-feat-icon {
            color: var(--accent);
            font-weight: bold;
            font-size: 1.2rem;
        }

        .about-feat-text h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }

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

        .about-visual {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            border-radius: 20px;
            padding: 40px;
            color: #ffffff;
            position: relative;
            box-shadow: 0 20px 25px -5px rgba(124, 58, 237, 0.3);
        }

        .about-visual::before {
            content: '';
            position: absolute;
            inset: 10px;
            border: 2px dashed rgba(255,255,255,0.2);
            border-radius: 12px;
        }

        .about-visual-inner {
            position: relative;
            z-index: 2;
        }

        .about-tag {
            font-size: 0.85rem;
            background: rgba(255,255,255,0.2);
            padding: 4px 12px;
            border-radius: 12px;
            display: inline-block;
            margin-bottom: 20px;
        }

        .about-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
        }

        /* Services & Models Section */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-card);
            border: 2px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            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(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0,0,0,0.08);
            border-color: var(--primary);
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

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

        .service-tags span {
            font-size: 0.8rem;
            background-color: var(--bg-main);
            color: var(--text-secondary);
            padding: 4px 10px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        /* Platform Grid (Model Aggregation) */
        .platform-wrap {
            margin-top: 60px;
            background-color: #f1f5f9;
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

        .platform-title {
            text-align: center;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 30px;
            color: var(--text-primary);
        }

        .platform-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .platform-badge {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            transition: var(--transition);
        }

        .platform-badge:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: scale(1.05);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
        }

        /* Solutions Section */
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .solution-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: var(--transition);
        }

        .solution-card:hover {
            border-color: var(--accent);
            box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
        }

        .solution-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            opacity: 0.4;
            line-height: 1;
        }

        .solution-info h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .solution-info p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 15px;
        }

        .solution-meta {
            display: flex;
            gap: 15px;
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* Service Network & Timelines */
        .network-section {
            background-color: #ffffff;
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .timeline {
            position: relative;
            padding-left: 30px;
            border-left: 2px solid var(--border-color);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -37px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 4px solid #ffffff;
            box-shadow: 0 0 0 2px var(--primary);
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

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

        .network-cities {
            background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
            border-radius: 20px;
            padding: 40px;
            color: #ffffff;
        }

        .network-cities h3 {
            color: #ffffff;
            margin-bottom: 20px;
        }

        .city-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
        }

        .city-card {
            background-color: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            font-weight: 600;
            transition: var(--transition);
        }

        .city-card:hover {
            background-color: var(--accent);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* Technology Standards & Comparison */
        .comparison-table-wrap {
            overflow-x: auto;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            margin-top: 30px;
            box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
        }

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

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: #f1f5f9;
            font-weight: 800;
            color: var(--text-primary);
        }

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

        .comparison-table tr.highlighted {
            background-color: rgba(124, 58, 237, 0.03);
        }

        .comparison-table tr.highlighted td {
            font-weight: 600;
        }

        .score-badge {
            background: linear-gradient(135deg, var(--accent) 0%, #ea580c 100%);
            color: #ffffff;
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: 800;
            font-size: 0.9rem;
            display: inline-block;
        }

        /* Token的比价参考 */
        .token-price-section {
            background-color: #f8fafc;
        }

        .token-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .token-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
        }

        .token-card h3 {
            margin-bottom: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .token-card h3 span {
            font-size: 0.85rem;
            color: var(--accent);
            background-color: rgba(249, 115, 22, 0.1);
            padding: 4px 10px;
            border-radius: 4px;
        }

        /* Training & Certification */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .training-card {
            background-color: var(--bg-card);
            border: 2px solid var(--border-color);
            border-radius: 12px;
            padding: 24px 15px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
            box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
        }

        .training-icon {
            font-size: 2rem;
            margin-bottom: 15px;
            display: block;
        }

        .training-card h3 {
            font-size: 1rem;
            margin-bottom: 10px;
        }

        .training-card p {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        /* Customer Cases (With Images) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0,0,0,0.08);
            border-color: var(--primary);
        }

        .case-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: #f1f5f9;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-content {
            padding: 24px;
        }

        .case-tag {
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-title {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }

        .case-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 15px;
        }

        /* Partner / Agency Program */
        .partner-section {
            background: linear-gradient(135deg, #7c3aed 0%, #c084fc 100%);
            color: #ffffff;
        }

        .partner-section h2, .partner-section p {
            color: #ffffff;
        }

        .partner-section .section-header h2::after {
            background: #ffffff;
        }

        .partner-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .partner-benefits {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .benefit-card {
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 24px;
            border-radius: 12px;
            backdrop-filter: blur(10px);
        }

        .benefit-card h4 {
            color: #ffffff;
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .benefit-card p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.8);
            margin: 0;
        }

        /* Testimonials (6 Comments) */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

        .testimonial-card:hover {
            box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
            border-color: var(--accent);
        }

        .testimonial-content {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.6;
        }

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

        .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
        }

        .author-info h4 {
            font-size: 0.95rem;
            margin: 0;
        }

        .author-info p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0;
        }

        /* Articles Section */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

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

        .article-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .article-title {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-link {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* FAQ Accordion */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 20px 24px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background-color: var(--bg-card);
            transition: var(--transition);
        }

        .faq-header:hover {
            background-color: #f8fafc;
        }

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

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-content {
            max-height: 1000px;
            padding: 0 24px 20px 24px;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

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

        /* Auto-troubleshooting & Encyclopedia */
        .trouble-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .trouble-box {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
        }

        .trouble-box h3 {
            margin-bottom: 20px;
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 10px;
        }

        .trouble-list-item {
            margin-bottom: 15px;
        }

        .trouble-list-item h4 {
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .trouble-list-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Contact & Match form */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }

        .form-wrap {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 20px 25px -5px rgba(0,0,0,0.05);
        }

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

        .form-label {
            display: block;
            font-weight: 700;
            margin-bottom: 8px;
            font-size: 0.9rem;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        .contact-info-wrap {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .contact-card-box {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
        }

        .qr-wrap {
            width: 150px;
            height: 150px;
            margin: 20px auto;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 8px;
            background-color: #ffffff;
        }

        .qr-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .contact-details {
            list-style: none;
            text-align: left;
            margin-top: 20px;
        }

        .contact-details li {
            margin-bottom: 12px;
            font-size: 0.95rem;
            display: flex;
            gap: 10px;
            color: var(--text-secondary);
        }

        .contact-details li strong {
            color: var(--text-primary);
        }

        /* Footer */
        .site-footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 50px;
            margin-bottom: 40px;
        }

        .footer-logo-wrap {
            margin-bottom: 20px;
        }

        .footer-logo-wrap h3 {
            color: #ffffff;
        }

        .footer-links-group h4 {
            color: #ffffff;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

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

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

        .footer-links-group ul li a {
            color: #94a3b8;
        }

        .footer-links-group ul li a:hover {
            color: #ffffff;
        }

        .friend-links-box {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .friend-links-box a {
            color: #94a3b8;
            background-color: #1e293b;
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
        }

        .friend-links-box a:hover {
            background-color: var(--primary);
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.85rem;
        }

        /* Floating Widgets */
        .floating-widgets {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 99;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--accent);
            transform: scale(1.05);
        }

        .float-btn-kefu:hover .kefu-popover {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .kefu-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 15px;
            width: 180px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: var(--transition);
            text-align: center;
            color: var(--text-primary);
        }

        .kefu-popover img {
            width: 100%;
            border-radius: 6px;
            margin-bottom: 8px;
        }

        .kefu-popover p {
            font-size: 0.75rem;
            margin: 0;
            font-weight: 700;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .cases-grid, .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .articles-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #ffffff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .about-grid, .network-grid, .solutions-grid, .token-grid, .trouble-grid, .contact-grid, .partner-grid {
                grid-template-columns: 1fr;
            }
            .services-grid, .cases-grid, .testimonials-grid, .training-grid, .articles-grid {
                grid-template-columns: 1fr;
            }
            .about-visual {
                padding: 20px;
            }
            .about-title {
                font-size: 1.6rem;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .floating-widgets {
                bottom: 20px;
                right: 20px;
            }
        }