/* CSS Reset & Variable Definition */
        :root {
            --primary: #E60012;
            --primary-hover: #C5000F;
            --secondary: #990000;
            --dark: #1A1A1A;
            --light: #F9F9F9;
            --gray: #666666;
            --border: #EEEEEE;
            --gold: #FFB800;
            --white: #FFFFFF;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.6;
        }

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

        ul {
            list-style: none;
        }

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

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

        /* Common Section Title */
        .section-title-wrap {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title-wrap h2 {
            font-size: 2.2rem;
            color: var(--dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
            font-weight: 700;
        }

        .section-title-wrap h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .section-title-wrap p {
            color: var(--gray);
            margin-top: 15px;
            font-size: 1.1rem;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            font-size: 1rem;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--white) !important;
        }

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

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

        .btn-outline:hover {
            background-color: var(--primary);
            color: var(--white) !important;
            transform: translateY(-2px);
        }

        /* Header Navigation */
        .header {
            background-color: var(--white);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

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

        .ai-page-logo {
            height: 45px;
            width: auto;
        }

        .logo-text {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
        }

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

        .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: #333;
            padding: 8px 12px;
            border-radius: 4px;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary);
            background-color: rgba(230, 0, 18, 0.05);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .nav-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            transition: var(--transition);
        }

        /* Hero Section (No Image) */
        .hero-section {
            background: linear-gradient(135deg, #1A1A1A 0%, #3a0007 50%, #990000 100%);
            color: var(--white);
            padding: 120px 0 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle, rgba(230, 0, 18, 0.15) 10%, transparent 80%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 10;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-tag {
            background-color: var(--primary);
            color: var(--white);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 25px;
            letter-spacing: 1px;
            border: 1px solid rgba(255,255,255,0.2);
        }

        .hero-title h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 25px;
            letter-spacing: 1px;
            color: var(--white);
        }

        .hero-desc {
            font-size: 1.25rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-btn-group .btn {
            min-width: 180px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

        .hero-btn-group .btn-white {
            background-color: var(--white);
            color: var(--dark) !important;
        }

        .hero-btn-group .btn-white:hover {
            background-color: rgba(255,255,255,0.9);
            transform: translateY(-2px);
        }

        /* Info Stats Section */
        .stats-section {
            margin-top: -50px;
            position: relative;
            z-index: 20;
            padding-bottom: 60px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--gray);
            font-weight: 500;
        }

        /* General Section Layout */
        .section-padding {
            padding: 80px 0;
        }

        .bg-white {
            background-color: var(--white);
        }

        /* About Us Section */
        .about-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .about-text p {
            color: var(--gray);
            margin-bottom: 18px;
            font-size: 1rem;
            line-height: 1.8;
        }

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

        .about-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .about-feature-item svg {
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 4px;
        }

        .about-feature-item h4 {
            font-size: 1.05rem;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .about-feature-item p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        .about-img-box {
            background: linear-gradient(135deg, rgba(230,0,18,0.05) 0%, rgba(153,0,0,0.05) 100%);
            border-radius: 12px;
            padding: 30px;
            border: 1px dashed var(--primary);
        }

        .about-info-list {
            margin-top: 15px;
        }

        .about-info-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            font-size: 0.95rem;
        }

        .about-info-list li span:first-child {
            color: var(--gray);
        }

        .about-info-list li span:last-child {
            font-weight: 600;
            color: var(--dark);
        }

        /* AIGC Platforms Section */
        .platform-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .platform-card {
            background-color: var(--light);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 15px 10px;
            text-align: center;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .platform-card:hover {
            background-color: var(--primary);
            color: var(--white);
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* Services Capabilities */
        .capability-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .capability-card {
            background-color: var(--light);
            border-radius: 8px;
            padding: 40px 30px;
            transition: var(--transition);
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .capability-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--primary);
            transform: scaleY(0);
            transition: var(--transition);
            transform-origin: bottom;
        }

        .capability-card:hover {
            transform: translateY(-5px);
            background-color: var(--white);
            box-shadow: var(--shadow);
        }

        .capability-card:hover::before {
            transform: scaleY(1);
        }

        .capability-icon {
            color: var(--primary);
            margin-bottom: 25px;
        }

        .capability-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .capability-card p {
            color: var(--gray);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* Production Workflows & Standardization */
        .workflow-timeline {
            position: relative;
            max-width: 1000px;
            margin: 40px auto 0 auto;
        }

        .workflow-timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 100%;
            background-color: var(--border);
            top: 0;
        }

        .workflow-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            margin-bottom: 40px;
            position: relative;
        }

        .workflow-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .workflow-dot {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 4px solid var(--white);
            z-index: 10;
        }

        .workflow-card {
            width: 45%;
            background-color: var(--white);
            padding: 25px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            border-top: 3px solid var(--primary);
        }

        .workflow-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .workflow-card h4 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .workflow-card p {
            color: var(--gray);
            font-size: 0.9rem;
        }

        /* Industry Solutions */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .solution-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 30px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .solution-card:hover {
            background-color: var(--secondary);
            border-color: var(--secondary);
            transform: translateY(-5px);
        }

        .solution-card:hover h3, .solution-card:hover p {
            color: var(--white);
        }

        .solution-card:hover .solution-icon {
            color: var(--gold);
        }

        .solution-icon {
            color: var(--primary);
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .solution-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            font-weight: 700;
            color: var(--dark);
        }

        .solution-card p {
            font-size: 0.9rem;
            color: var(--gray);
            line-height: 1.6;
        }

        /* Technical Standards */
        .tech-box {
            background-color: var(--white);
            border-radius: 8px;
            padding: 40px;
            box-shadow: var(--shadow);
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .tech-item h4 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 15px;
            font-weight: 700;
            border-left: 3px solid var(--primary);
            padding-left: 10px;
        }

        .tech-item p {
            font-size: 0.9rem;
            color: var(--gray);
            line-height: 1.7;
        }

        /* Case Studies (with images) */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: var(--white);
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
        }

        .case-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

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

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

        .case-tag {
            position: absolute;
            top: 15px;
            left: 15px;
            background-color: var(--primary);
            color: var(--white);
            font-size: 0.8rem;
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 600;
        }

        .case-info {
            padding: 25px;
        }

        .case-info h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .case-info p {
            color: var(--gray);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border);
            padding-top: 15px;
            font-size: 0.85rem;
            color: var(--gray);
        }

        .case-meta span strong {
            color: var(--primary);
        }

        /* Network & Agent */
        .agent-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }

        .agent-desc h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .agent-desc p {
            color: var(--gray);
            margin-bottom: 20px;
            font-size: 1rem;
            line-height: 1.8;
        }

        .agent-list {
            margin-bottom: 30px;
        }

        .agent-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .agent-list svg {
            color: var(--primary);
        }

        .network-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 35px;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary);
        }

        .network-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark);
        }

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

        .node-item {
            background-color: var(--light);
            padding: 12px 5px;
            text-align: center;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid var(--border);
        }

        /* Comparison Board */
        .comparison-table-wrapper {
            background-color: var(--white);
            border-radius: 8px;
            padding: 30px;
            box-shadow: var(--shadow);
            overflow-x: auto;
        }

        .comparison-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--border);
        }

        .rating-box {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
        }

        .stars {
            color: var(--gold);
            font-size: 1.5rem;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .comparison-table th, .comparison-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border);
        }

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

        .comparison-table td strong {
            color: var(--primary);
        }

        /* Token Price Comparison */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .token-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 30px;
            border: 1px solid var(--border);
            text-align: center;
            position: relative;
        }

        .token-card.popular {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .token-card.popular::after {
            content: '首选推荐';
            position: absolute;
            top: 15px;
            right: 15px;
            background-color: var(--primary);
            color: var(--white);
            font-size: 0.75rem;
            padding: 2px 8px;
            border-radius: 3px;
            font-weight: 600;
        }

        .token-model-name {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin: 20px 0;
        }

        .token-price span {
            font-size: 0.9rem;
            color: var(--gray);
            font-weight: 400;
        }

        .token-features {
            margin-bottom: 25px;
            font-size: 0.9rem;
            color: var(--gray);
        }

        .token-features li {
            margin-bottom: 10px;
        }

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

        .training-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 25px 15px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }

        .training-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .training-card p {
            font-size: 0.85rem;
            color: var(--gray);
            margin-bottom: 15px;
        }

        .cert-org {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
            background-color: rgba(230,0,18,0.05);
            padding: 4px 8px;
            border-radius: 12px;
            display: inline-block;
        }

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

        .form-box {
            background-color: var(--white);
            padding: 40px;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border);
            border-radius: 4px;
            outline: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230,0,18,0.1);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .contact-info-card {
            background-color: var(--secondary);
            color: var(--white);
            padding: 40px;
            border-radius: 8px;
            position: relative;
            overflow: hidden;
        }

        .contact-info-card h3 {
            font-size: 1.5rem;
            margin-bottom: 30px;
            font-weight: 700;
            position: relative;
            z-index: 10;
        }

        .contact-details {
            position: relative;
            z-index: 10;
            margin-bottom: 30px;
        }

        .contact-detail-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 20px;
        }

        .contact-detail-item svg {
            color: var(--gold);
            flex-shrink: 0;
            margin-top: 4px;
        }

        .contact-detail-item p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.9);
        }

        .contact-qr {
            background-color: var(--white);
            padding: 15px;
            border-radius: 8px;
            width: 160px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }

        .contact-qr img {
            width: 100%;
        }

        .contact-qr-label {
            text-align: center;
            font-size: 0.85rem;
            color: var(--white);
            margin-top: 10px;
            position: relative;
            z-index: 10;
        }

        /* User Testimonials */
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .comment-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }

        .comment-content {
            font-size: 0.95rem;
            color: var(--gray);
            line-height: 1.7;
            margin-bottom: 20px;
            position: relative;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .user-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
        }

        .user-info p {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 500;
        }

        /* Help Center / FAQ */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--white);
            border-radius: 6px;
            margin-bottom: 12px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.02);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 18px 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--dark);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            transition: transform 0.3s ease;
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background-color: #FAFAFA;
        }

        .faq-answer-inner {
            padding: 20px 25px;
            font-size: 0.95rem;
            color: var(--gray);
            line-height: 1.7;
            border-top: 1px solid var(--border);
        }

        .faq-item.active .faq-answer {
            max-height: 250px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        /*自助排查 & 术语百科*/
        .troubleshooting-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            max-width: 900px;
            margin: 40px auto 0 auto;
        }

        .trouble-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 30px;
            box-shadow: var(--shadow);
            border-top: 3px solid var(--secondary);
        }

        .trouble-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .trouble-card h3 svg {
            color: var(--primary);
        }

        .trouble-list li {
            font-size: 0.9rem;
            color: var(--gray);
            margin-bottom: 10px;
            position: relative;
            padding-left: 15px;
        }

        .trouble-list li::before {
            content: '•';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        /* Article / Knowledge Base */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .article-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 25px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 15px;
            line-height: 1.5;
            color: var(--dark);
        }

        .article-card h3 a:hover {
            color: var(--primary);
        }

        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--gray);
            border-top: 1px solid var(--border);
            padding-top: 15px;
            margin-top: 15px;
        }

        /* Footer */
        .footer {
            background-color: #111111;
            color: #CCCCCC;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 0.8fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            color: var(--white);
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .footer-brand p {
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background-color: var(--primary);
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: #999999;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        .footer-contact li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact svg {
            color: var(--primary);
            flex-shrink: 0;
        }

        .footer-qr-wrapper {
            text-align: center;
        }

        .footer-qr {
            background-color: var(--white);
            padding: 10px;
            border-radius: 6px;
            display: inline-block;
            margin-bottom: 10px;
            width: 120px;
        }

        .footer-qr img {
            width: 100%;
        }

        .friend-links {
            border-top: 1px solid #222222;
            padding-top: 20px;
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friend-links span {
            font-weight: 600;
            color: var(--white);
        }

        .friend-links a {
            color: #777777;
            font-size: 0.85rem;
        }

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

        .footer-bottom {
            border-top: 1px solid #222222;
            padding-top: 25px;
            text-align: center;
            font-size: 0.8rem;
            color: #666666;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* Floating Widgets */
        .floating-widget {
            position: fixed;
            right: 20px;
            bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .widget-item {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .widget-item:hover {
            background-color: var(--primary-hover);
            transform: translateY(-3px);
        }

        .widget-qr-box {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--white);
            padding: 15px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            display: none;
            text-align: center;
            width: 160px;
        }

        .widget-qr-box img {
            width: 128px;
            height: 128px;
            margin-bottom: 8px;
        }

        .widget-qr-box p {
            color: var(--dark);
            font-size: 0.8rem;
            font-weight: 600;
        }

        .widget-item:hover .widget-qr-box {
            display: block;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .capability-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solution-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .comment-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background-color: var(--white);
                border-top: 1px solid var(--border);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                padding: 20px;
                gap: 15px;
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-toggle {
                display: flex;
            }

            .hero-title h1 {
                font-size: 2rem;
            }

            .about-grid, .agent-grid, .contact-grid, .troubleshooting-grid {
                grid-template-columns: 1fr;
            }

            .workflow-timeline::before {
                left: 20px;
            }

            .workflow-item {
                flex-direction: row !important;
                padding-left: 45px;
            }

            .workflow-dot {
                left: 20px;
            }

            .workflow-card {
                width: 100%;
            }

            .tech-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .capability-grid, .solution-grid, .case-grid, .comment-grid, .article-grid, .training-grid {
                grid-template-columns: 1fr;
            }
            .platform-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .network-nodes {
                grid-template-columns: repeat(2, 1fr);
            }
            .token-grid {
                grid-template-columns: 1fr;
            }
        }