:root {
            --primary: #ff007a;
            --primary-rgb: 255, 0, 122;
            --secondary: #7928ca;
            --accent: #00f2fe;
            --dark: #0f111a;
            --dark-rgb: 15, 17, 26;
            --light-bg: #f8fafc;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.05);
            --trend-gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            --glow-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* Base Reset */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--light-bg);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        ul {
            list-style: none;
        }

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

        /* Layout Container */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

        /* Global Typography */
        h2.section-title {
            font-size: 2.2rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 12px;
            color: var(--dark);
            letter-spacing: -0.5px;
        }

        h2.section-title span {
            background: var(--trend-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-desc {
            text-align: center;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 50px;
            font-size: 1.1rem;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            gap: 8px;
        }

        .btn-primary {
            background: var(--trend-gradient);
            color: #fff;
            box-shadow: 0 4px 15px rgba(255, 0, 122, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 0, 122, 0.4);
        }

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

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

        .btn-accent {
            background: var(--glow-gradient);
            color: var(--dark);
            box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4);
        }

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

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

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

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

        .nav-links {
            display: flex;
            gap: 24px;
            align-items: center;
        }

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

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

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

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

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

        /* Hero Section (No Image) */
        .hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 90% 10%, rgba(255, 0, 122, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 10% 80%, rgba(121, 40, 202, 0.05) 0%, transparent 40%),
                        #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--trend-gradient);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 0, 122, 0.08);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 0, 122, 0.15);
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            color: var(--dark);
            line-height: 1.25;
            max-width: 900px;
            margin: 0 auto 24px;
            letter-spacing: -1px;
        }

        .hero-title span {
            background: var(--trend-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 650px;
            margin: 0 auto 36px;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 60px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
            border-top: 1px solid var(--border-color);
            padding-top: 40px;
        }

        .stat-item h3 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .stat-item h3 span {
            color: var(--primary);
        }

        .stat-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* About Us Section */
        .about {
            background-color: #fff;
        }

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

        .about-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--dark);
        }

        .about-text {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }

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

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

        .about-feat-item span {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(255, 0, 122, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.8rem;
            flex-shrink: 0;
            margin-top: 3px;
        }

        .about-feat-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
        }

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

        .about-media img {
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border: 1px solid var(--border-color);
        }

        /* Service Capability (AIGC体系) */
        .services {
            background-color: var(--light-bg);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 50px;
        }

        .service-card {
            background: #fff;
            padding: 36px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

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

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

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(121, 40, 202, 0.1);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 24px;
            font-weight: bold;
        }

        .service-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
        }

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

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

        .service-tags span {
            font-size: 0.75rem;
            background: var(--light-bg);
            color: var(--text-main);
            padding: 4px 10px;
            border-radius: 30px;
            border: 1px solid var(--border-color);
        }

        /* Platform Aggregation */
        .platforms {
            background: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 60px 0;
            text-align: center;
        }

        .platforms h3 {
            font-size: 1.4rem;
            margin-bottom: 30px;
            color: var(--dark);
            font-weight: 700;
        }

        .platform-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .platform-tag {
            background: var(--light-bg);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .platform-tag:hover {
            background: var(--trend-gradient);
            color: #fff;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* Workflow Step (全自动制作流程) */
        .workflow {
            background: #fff;
        }

        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-num {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--light-bg);
            border: 3px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-muted);
            margin: 0 auto 20px;
            transition: var(--transition);
        }

        .step-item:hover .step-num {
            background: var(--trend-gradient);
            color: #fff;
            border-color: transparent;
            transform: scale(1.1);
            box-shadow: 0 10px 20px rgba(255, 0, 122, 0.2);
        }

        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Solutions (行业解决方案) */
        .solutions {
            background: var(--light-bg);
        }

        .solutions-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
        }

        .tab-btn {
            padding: 10px 24px;
            border-radius: 30px;
            background: #fff;
            border: 1px solid var(--border-color);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--dark);
            color: #fff;
            border-color: var(--dark);
        }

        .solution-content {
            background: #fff;
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--border-color);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .solution-info h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .solution-info p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .solution-features {
            margin-bottom: 30px;
        }

        .solution-feat-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            font-weight: 600;
            color: var(--dark);
        }

        .solution-feat-row i {
            color: var(--primary);
        }

        .solution-media img {
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            width: 100%;
            object-fit: cover;
        }

        /* Service Network & Flow (服务网络与标准化服务流程) */
        .network-section {
            background: #fff;
        }

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

        .network-map {
            background: var(--light-bg);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .network-point {
            position: absolute;
            width: 12px;
            height: 12px;
            background: var(--primary);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 0, 122, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(255, 0, 122, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 0, 122, 0); }
        }

        /* Standardized Flow Timeline */
        .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: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--primary);
        }

        .timeline-item h4 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 6px;
        }

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

        /* Tech Standards (技术标准) */
        .standards {
            background: var(--light-bg);
        }

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

        .standard-card {
            background: #fff;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .standard-card .icon {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: 16px;
        }

        .standard-card h4 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .standard-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Cases (客户案例中心) */
        .cases {
            background: #fff;
        }

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

        .case-card {
            background: var(--light-bg);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .case-image img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .case-info {
            padding: 24px;
        }

        .case-info .category {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: block;
        }

        .case-info h3 {
            font-size: 1.2rem;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .case-meta {
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Review Section (对比评测) */
        .reviews-eval {
            background: var(--light-bg);
        }

        .eval-container {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            background: #fff;
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

        .eval-score-card {
            background: var(--trend-gradient);
            color: #fff;
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

        .eval-score-card h3 {
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        .eval-score {
            font-size: 4.5rem;
            font-weight: 900;
            line-height: 1;
            margin-bottom: 10px;
        }

        .eval-stars {
            color: #f9d423;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .eval-table-container {
            overflow-x: auto;
        }

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

        .eval-table th, .eval-table td {
            padding: 16px;
            border-bottom: 1px solid var(--border-color);
        }

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

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

        /* Token Price Reference (Token比价参考) */
        .price-section {
            background: #fff;
        }

        .price-table-wrapper {
            margin-top: 30px;
            background: #fff;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .price-table {
            width: 100%;
            border-collapse: collapse;
        }

        .price-table th {
            background: var(--light-bg);
            padding: 18px;
            font-weight: 700;
            color: var(--dark);
            text-align: left;
            border-bottom: 2px solid var(--border-color);
        }

        .price-table td {
            padding: 18px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-main);
        }

        .price-table tr:hover {
            background: rgba(255, 0, 122, 0.02);
        }

        .badge-low {
            background: rgba(0, 242, 254, 0.15);
            color: #008ba3;
            padding: 4px 10px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
        }

        /* Training Section (职业技术培训) */
        .training {
            background: var(--light-bg);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .training-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }

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

        .training-card .cert-badge {
            display: inline-block;
            background: rgba(121, 40, 202, 0.08);
            color: var(--secondary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 30px;
            margin-bottom: 16px;
        }

        .training-card h4 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .training-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* User Testimonials (6条用户评论) */
        .testimonials {
            background: #fff;
        }

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

        .testi-card {
            background: var(--light-bg);
            padding: 30px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .testi-stars {
            color: #f9d423;
            margin-bottom: 16px;
        }

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

        .testi-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testi-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--trend-gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.1rem;
        }

        .testi-user-info h4 {
            font-size: 0.95rem;
            color: var(--dark);
            font-weight: 700;
        }

        .testi-user-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Smart Matching Form (智能需求匹配/联系我们) */
        .matching-form-section {
            background: var(--light-bg);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: flex-start;
        }

        .form-desc h3 {
            font-size: 2rem;
            color: var(--dark);
            margin-bottom: 20px;
        }

        .form-desc p {
            color: var(--text-muted);
            margin-bottom: 30px;
        }

        .form-channels {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .channel-card {
            background: #fff;
            padding: 20px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .channel-icon {
            font-size: 1.5rem;
            color: var(--primary);
        }

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

        .channel-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .matching-form {
            background: #fff;
            padding: 40px;
            border-radius: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
        }

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

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

        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--light-bg);
            color: var(--dark);
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(255, 0, 122, 0.1);
        }

        /* FAQ Section (常见用户问题 FAQ) */
        .faq {
            background: #fff;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .faq-column {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            background: var(--light-bg);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-header::after {
            content: '+';
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-header::after {
            content: '-';
            transform: rotate(180deg);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.active .faq-body {
            padding: 0 20px 20px 20px;
        }

        /* Troubleshoot & Dictionary (排查与百科) */
        .tools-section {
            background: var(--light-bg);
        }

        .tools-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

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

        .tool-box h3 {
            font-size: 1.4rem;
            color: var(--dark);
            margin-bottom: 24px;
            font-weight: 700;
        }

        .trouble-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .trouble-item span {
            background: rgba(255, 0, 122, 0.1);
            color: var(--primary);
            font-weight: 700;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.8rem;
        }

        .trouble-info h4 {
            font-size: 0.95rem;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .trouble-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

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

        .dict-item h4 {
            font-size: 1rem;
            color: var(--dark);
            margin-bottom: 6px;
            font-weight: 700;
        }

        .dict-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Article / Knowledge Base (资讯与文章) */
        .articles {
            background: #fff;
        }

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

        .article-card {
            background: var(--light-bg);
            border-radius: 16px;
            padding: 24px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h3 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .article-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .article-link {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Contact (联系我们二维码区) */
        .contact-details {
            background: var(--light-bg);
            text-align: center;
        }

        .contact-cards {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .contact-card {
            background: #fff;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .contact-card img {
            width: 140px;
            height: 140px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 16px;
            border: 1px solid var(--border-color);
        }

        .contact-card h4 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .contact-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Footer & Floating Widgets */
        footer {
            background: var(--dark);
            color: #fff;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            background: var(--trend-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .footer-brand p {
            color: rgba(255,255,255,0.6);
            margin-bottom: 20px;
        }

        .footer-links h4 {
            font-size: 1rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

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

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255,255,255,0.4);
            font-size: 0.8rem;
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
        }

        .footer-bottom-links a {
            color: rgba(255,255,255,0.4);
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        .friend-links {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friend-links a {
            color: rgba(255,255,255,0.5);
        }

        .friend-links a:hover {
            color: #fff;
        }

        /* Floating Widget */
        .floating-contact {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fff;
            box-shadow: 0 4px 20px 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;
        }

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

        .float-qr {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 12px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 140px;
        }

        .float-qr img {
            width: 120px;
            height: 120px;
            margin-bottom: 6px;
        }

        .float-qr p {
            font-size: 0.75rem;
            color: var(--dark);
            font-weight: 700;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .services-grid, .cases-grid, .testimonials-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .workflow-steps, .training-grid, .contact-cards {
                grid-template-columns: repeat(3, 1fr);
            }
            .about-grid, .network-grid, .form-grid, .tools-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--card-shadow);
            }
            .nav-links.active {
                display: flex;
            }
            .burger-menu {
                display: flex;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .cases-grid, .testimonials-grid, .articles-grid, .workflow-steps, .training-grid, .contact-cards {
                grid-template-columns: 1fr;
            }
            .eval-container {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .dict-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }