:root {
            --primary-color: #0052cc;
            --primary-light: #00d2ff;
            --primary-dark: #0a2540;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --bg-light: #f4f7fc;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
            --success-color: #10b981;
            --container-width: 1200px;
            --transition-speed: 0.3s;
        }

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

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

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

        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
        }

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

        /* 顶部导航 */
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

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

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

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

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary-color);
            letter-spacing: 0.5px;
        }

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

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            padding: 5px 10px;
            border-radius: 4px;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--primary-color);
            background-color: rgba(0, 82, 204, 0.05);
        }

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

        .nav-btn {
            background-color: var(--primary-color);
            color: #ffffff !important;
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 6px rgba(0, 82, 204, 0.15);
            transition: all var(--transition-speed);
        }

        .nav-btn:hover {
            background-color: #0043a4;
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-dark);
        }

        /* Hero首屏 - 严禁出现任何图片 */
        .hero {
            background: radial-gradient(circle at 80% 20%, rgba(0, 210, 255, 0.15) 0%, transparent 50%), 
                        linear-gradient(135deg, #0a2540 0%, #0052cc 100%);
            color: #ffffff;
            padding: 100px 0 120px 0;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-shapes {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 1;
            pointer-events: none;
        }

        .hero-shapes span {
            position: absolute;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
        }

        .hero-shapes span:nth-child(1) { width: 300px; height: 300px; top: -50px; left: -50px; }
        .hero-shapes span:nth-child(2) { width: 400px; height: 400px; bottom: -100px; right: -50px; background: rgba(0, 210, 255, 0.05); }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(5px);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: clamp(28px, 4.5vw, 44px);
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero p {
            font-size: clamp(16px, 2vw, 18px);
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 40px;
            max-width: 650px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn-primary {
            background-color: var(--primary-light);
            color: var(--primary-dark) !important;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 8px 16px rgba(0, 210, 255, 0.25);
            transition: all var(--transition-speed);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 20px rgba(0, 210, 255, 0.35);
        }

        .btn-secondary {
            background-color: transparent;
            color: #ffffff !important;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 16px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition-speed);
        }

        .btn-secondary:hover {
            border-color: #ffffff;
            background-color: rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
        }

        /* 通用Section结构 */
        section {
            padding: 80px 0;
        }

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

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px auto;
        }

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

        .section-header p {
            color: var(--text-muted);
            font-size: 16px;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
            margin-top: -60px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 82, 204, 0.05);
            border: 1px solid var(--border-color);
            transition: transform var(--transition-speed);
        }

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

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 全平台AIGC服务 / 模型聚合 */
        .models-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .model-tag {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
            transition: all var(--transition-speed);
            cursor: default;
        }

        .model-tag:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            background-color: rgba(0, 82, 204, 0.02);
            transform: translateY(-2px);
        }

        .model-tag.highlight {
            background-color: var(--primary-color);
            color: #ffffff;
            border-color: var(--primary-color);
        }

        /* 场景卡片 / 服务能力 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: all var(--transition-speed);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 82, 204, 0.08);
            border-color: var(--primary-color);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(0, 82, 204, 0.08);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary-color);
        }

        .service-icon svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

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

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 15px;
        }

        .service-features {
            list-style: none;
            font-size: 13px;
            color: var(--text-dark);
        }

        .service-features li {
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .service-features li::before {
            content: "✓";
            color: var(--success-color);
            font-weight: bold;
        }

        /* 一站式制作流程 / 时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

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

        .timeline-item {
            margin-bottom: 40px;
            position: relative;
            width: 50%;
            padding: 0 40px;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-badge {
            width: 40px;
            height: 40px;
            background-color: var(--primary-color);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            position: absolute;
            top: 0;
            z-index: 10;
        }

        .timeline-item:nth-child(odd) .timeline-badge {
            right: -20px;
        }

        .timeline-item:nth-child(even) .timeline-badge {
            left: -20px;
        }

        .timeline-content {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
            border: 1px solid var(--border-color);
        }

        .timeline-content h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--primary-dark);
        }

        .timeline-content p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            background-color: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 8px 24px rgba(0,0,0,0.02);
        }

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

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

        .compare-table th {
            background-color: #fafbfc;
            font-weight: 700;
            color: var(--primary-dark);
        }

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

        .compare-table td.highlight {
            background-color: rgba(0, 82, 204, 0.02);
            font-weight: 600;
            color: var(--primary-color);
        }

        .badge-score {
            display: inline-flex;
            align-items: center;
            background-color: #fffbeb;
            color: #d97706;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 700;
            border: 1px solid #fde68a;
        }

        /* 案例展示区 - 包含图片 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

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

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 82, 204, 0.08);
        }

        .case-img-container {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: #eaeaea;
        }

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

        .case-body {
            padding: 25px;
        }

        .case-tag {
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            color: var(--primary-color);
            margin-bottom: 10px;
            display: inline-block;
        }

        .case-body h3 {
            font-size: 18px;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .case-body p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 职业技术培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background-color: var(--bg-light);
            border-radius: 10px;
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition-speed);
        }

        .training-card:hover {
            border-color: var(--primary-color);
            background-color: var(--bg-white);
            transform: scale(1.02);
        }

        .training-card h3 {
            font-size: 16px;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

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

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 850px;
            margin: 0 auto;
        }

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 16px;
            color: var(--primary-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 20px;
            color: var(--primary-color);
            transition: transform var(--transition-speed);
        }

        .faq-item.active .faq-question::after {
            content: '−';
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-speed) ease-out;
            background-color: #fafbfc;
        }

        .faq-answer-inner {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            line-height: 1.7;
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .review-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 25px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.01);
        }

        .review-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }

        .review-avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 18px;
        }

        .review-user-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary-dark);
        }

        .review-user-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

        .review-stars {
            color: #fbbf24;
            font-size: 14px;
            margin-bottom: 10px;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-dark);
            line-height: 1.6;
        }

        /* 表单与联系区 */
        .contact-wrapper {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: start;
        }

        .contact-form-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .form-title {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 25px;
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            background-color: #fafbfc;
            transition: all var(--transition-speed);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            background-color: #ffffff;
            box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
        }

        .form-submit-btn {
            background-color: var(--primary-color);
            color: #ffffff;
            border: none;
            padding: 14px 28px;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            width: 100%;
            transition: background-color var(--transition-speed);
        }

        .form-submit-btn:hover {
            background-color: #0043a4;
        }

        .contact-info-card {
            background-color: var(--primary-dark);
            color: #ffffff;
            border-radius: 12px;
            padding: 40px;
            height: 100%;
        }

        .contact-info-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--primary-light);
        }

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

        .info-icon {
            color: var(--primary-light);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .info-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }

        .info-text strong {
            display: block;
            font-size: 15px;
            color: #ffffff;
            margin-bottom: 2px;
        }

        .qr-section {
            margin-top: 30px;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
        }

        .qr-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 15px;
        }

        .qr-item img {
            width: 100px;
            height: 100px;
            border-radius: 6px;
            margin-bottom: 5px;
            background-color: white;
            padding: 5px;
        }

        .qr-item span {
            display: block;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* 资讯与知识库 */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .article-card {
            background-color: var(--bg-white);
            border-radius: 8px;
            padding: 25px;
            border: 1px solid var(--border-color);
            transition: border-color var(--transition-speed);
        }

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

        .article-card h3 {
            font-size: 16px;
            margin-bottom: 12px;
            color: var(--primary-dark);
            line-height: 1.4;
        }

        .article-card a {
            font-size: 14px;
            color: var(--primary-color);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .article-card a:hover {
            text-decoration: underline;
        }

        /* 页脚与友情链接 */
        .footer {
            background-color: var(--primary-dark);
            color: #ffffff;
            padding: 60px 0 20px 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr repeat(3, 0.6fr);
            gap: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            color: var(--primary-light);
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 15px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            margin-bottom: 15px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            margin-top: 20px;
        }

        .friend-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
        }

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

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: #ffffff;
            border-radius: 50%;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-speed);
            position: relative;
        }

        .float-btn:hover {
            background-color: #0043a4;
            transform: translateY(-2px);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .float-qr-hover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            display: none;
            width: 150px;
            text-align: center;
        }

        .float-qr-hover img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }

        .float-qr-hover span {
            font-size: 12px;
            color: var(--text-dark);
            display: block;
        }

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

        /* 响应式适配 */
        @media (max-width: 992px) {
            .navbar-container {
                position: relative;
            }
            .menu-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-links.active {
                display: flex;
            }
            .contact-wrapper {
                grid-template-columns: 1fr;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left !important;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
            .timeline-badge {
                left: 0 !important;
                right: auto !important;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .nav-actions {
                display: none;
            }
        }