:root {
            --primary: #FF6A00;
            --primary-hover: #E55B00;
            --secondary: #FF2E00;
            --dark: #1E1E24;
            --light-bg: #FCFCFD;
            --card-bg: #FFFFFF;
            --text-main: #2D2F33;
            --text-muted: #626770;
            --border-color: #EAECEF;
            --accent-orange-light: rgba(255, 106, 0, 0.08);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            overflow-x: hidden;
        }

        /* 布局容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            z-index: 1000;
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-links a {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition);
        }

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

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff !important;
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 14px;
            transition: var(--transition);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(255, 106, 0, 0.3);
        }

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

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

        /* 纯文本/几何首屏 Hero */
        .hero {
            padding-top: 152px;
            padding-bottom: 90px;
            background: radial-gradient(circle at 80% 20%, rgba(255, 106, 0, 0.08) 0%, transparent 60%),
                        radial-gradient(circle at 10% 80%, rgba(255, 46, 0, 0.05) 0%, transparent 50%),
                        var(--card-bg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: 50%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 106, 0, 0.05) 0%, transparent 70%);
            transform: translateX(-50%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: var(--accent-orange-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 106, 0, 0.2);
            animation: pulse 2s infinite;
        }

        .hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 36px auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 48px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 106, 0, 0.45);
        }

        .btn-secondary {
            background: var(--card-bg);
            color: var(--text-main);
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--accent-orange-light);
        }

        /* 核心优势数据卡片 */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: var(--card-bg);
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 24px rgba(255, 106, 0, 0.08);
        }

        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 通用标题 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

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

        .section-header p {
            margin-top: 12px;
            color: var(--text-muted);
            font-size: 16px;
        }

        /* 关于我们 & 软件介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
            line-height: 1.8;
        }

        .about-features {
            list-style: none;
        }

        .about-features li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            color: var(--text-main);
        }

        .about-features li::before {
            content: "✓";
            color: #fff;
            background: var(--primary);
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: bold;
        }

        .about-badges {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .about-badge-card {
            background: var(--accent-orange-light);
            border-left: 4px solid var(--primary);
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }

        .about-badge-card h4 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 6px;
        }

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

        /* 全平台AIGC服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 32px;
            border-radius: 12px;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary);
            box-shadow: 0 12px 30px rgba(255, 106, 0, 0.1);
        }

        .service-icon {
            font-size: 36px;
            margin-bottom: 20px;
            display: inline-block;
        }

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

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
        }

        /* 标签云 (支持模型) */
        .tags-container {
            margin-top: 40px;
            background: var(--card-bg);
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .tags-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-muted);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
        }

        .tag-item {
            font-size: 12px;
            background: var(--light-bg);
            padding: 6px 12px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            color: var(--text-main);
            transition: var(--transition);
        }

        .tag-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--accent-orange-light);
        }

        /* 全自动AIGC制作流程 & 流程步骤 */
        .flow-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .flow-step {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            position: relative;
            transition: var(--transition);
        }

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

        .flow-step-num {
            position: absolute;
            top: -15px;
            left: 20px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            box-shadow: 0 4px 10px rgba(255, 106, 0, 0.3);
        }

        .flow-step h3 {
            margin-top: 12px;
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 8px;
        }

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

        /* 全行业解决方案 */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .solution-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary);
            box-shadow: 0 12px 30px rgba(0,0,0,0.05);
        }

        .solution-body {
            padding: 24px;
        }

        .solution-tag {
            background: var(--accent-orange-light);
            color: var(--primary);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 12px;
        }

        .solution-body h3 {
            font-size: 20px;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .solution-body p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
        }

        /* 全国服务网络 */
        .network-section {
            background: var(--accent-orange-light);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .network-content h3 {
            font-size: 26px;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .network-content p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 15px;
        }

        .network-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .network-item {
            background: var(--card-bg);
            padding: 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .network-dot {
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--primary);
        }

        /* 技术标准 */
        .tech-standards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .tech-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            transition: var(--transition);
        }

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

        .tech-card h4 {
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        /* 客户案例中心 (包含宣传图) */
        .case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .case-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 18px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 28px rgba(0,0,0,0.08);
            border-color: var(--primary);
        }

        .case-img-wrap {
            width: 100%;
            height: 280px;
            overflow: hidden;
            position: relative;
            background: #eee;
        }

        .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-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: 20px;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .case-info p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 16px;
        }

        .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测 */
        .review-card {
            background: linear-gradient(135deg, var(--dark) 0%, #2A2C35 100%);
            color: #fff;
            border-radius: 20px;
            padding: 48px;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
        }

        .review-score-box {
            text-align: center;
            background: rgba(255, 106, 0, 0.1);
            border: 2px solid var(--primary);
            padding: 30px;
            border-radius: 16px;
            min-width: 220px;
        }

        .review-stars {
            color: var(--primary);
            font-size: 24px;
            margin-bottom: 8px;
        }

        .review-number {
            font-size: 54px;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }

        .review-max {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.6);
        }

        .review-content-box {
            flex: 1;
            margin-left: 48px;
        }

        .review-content-box h3 {
            font-size: 28px;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .review-content-box p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .compare-table-wrapper {
            overflow-x: auto;
            background: var(--card-bg);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px 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 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

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

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

        .compare-table td:nth-child(2) {
            font-weight: 600;
            color: var(--primary);
            background-color: rgba(255, 106, 0, 0.02);
        }

        .check-icon {
            color: #2ecc71;
            font-weight: bold;
        }

        .cross-icon {
            color: #e74c3c;
            font-weight: bold;
        }

        /* Token比价参考 */
        .token-price-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .token-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
        }

        .token-card h3 {
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 16px;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 8px;
            display: inline-block;
        }

        .token-list {
            list-style: none;
        }

        .token-item {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 14px;
        }

        .token-item:last-child {
            border-bottom: none;
        }

        .token-price-val {
            font-weight: 600;
            color: var(--primary);
        }

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

        .train-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }

        .train-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 24px rgba(255, 106, 0, 0.08);
            transform: translateY(-3px);
        }

        .train-badge {
            background: var(--accent-orange-light);
            color: var(--primary);
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 12px;
            display: inline-block;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .train-card h3 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 8px;
        }

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

        /* 常见问题自助排查 & 术语百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .helper-box {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 32px;
            border-radius: 16px;
        }

        .helper-box h3 {
            font-size: 20px;
            color: var(--dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .helper-list {
            list-style: none;
        }

        .helper-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        .helper-list li:last-child {
            border-bottom: none;
        }

        .helper-list strong {
            color: var(--primary);
        }

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

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-icon-arrow {
            transition: var(--transition);
            font-weight: bold;
            color: var(--primary);
        }

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

        .faq-answer-inner {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            border-top: 1px solid var(--border-color);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

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

        /* 客户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .comment-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            position: relative;
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .user-avatar-placeholder {
            width: 44px;
            height: 44px;
            background: var(--accent-orange-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .user-meta h4 {
            font-size: 15px;
            color: var(--dark);
        }

        .user-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

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

        /* 行业资讯 / 知识库 */
        .articles-wrapper {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 32px;
            border-radius: 16px;
        }

        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }

        .article-card-item {
            padding: 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--light-bg);
            transition: var(--transition);
        }

        .article-card-item:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .article-card-item a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 600;
            font-size: 14px;
            display: block;
            margin-bottom: 8px;
        }

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

        .article-card-item span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 智能需求匹配与联系我们 (表单 & 客服) */
        .contact-section {
            background: linear-gradient(135deg, rgba(255, 106, 0, 0.02) 0%, rgba(255, 46, 0, 0.02) 100%), var(--card-bg);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 3fr 2fr;
            gap: 48px;
        }

        .form-box {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
        }

        .form-box h3 {
            font-size: 22px;
            margin-bottom: 24px;
            color: var(--dark);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .form-group {
            margin-bottom: 16px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }

        .form-group input, .form-group select, .form-group textarea {
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            color: var(--text-main);
            outline: none;
            background: var(--light-bg);
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.15);
            background: #fff;
        }

        .contact-info-box {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 16px;
            margin-bottom: 24px;
        }

        .info-card h3 {
            font-size: 20px;
            margin-bottom: 16px;
            color: var(--dark);
        }

        .info-item {
            margin-bottom: 16px;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .info-item strong {
            color: var(--dark);
            min-width: 80px;
        }

        .qrcode-box {
            text-align: center;
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            margin-top: 24px;
        }

        .qrcode-box img {
            width: 140px;
            height: 140px;
            margin-top: 12px;
            border: 1px solid var(--border-color);
            padding: 4px;
            border-radius: 8px;
        }

        /* 浮动客服入口 */
        .float-widget {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .widget-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .widget-item:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

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

        .kefu-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 16px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            width: 180px;
            text-align: center;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: var(--transition);
            pointer-events: none;
        }

        .kefu-popover img {
            width: 100%;
            height: auto;
            margin-bottom: 8px;
        }

        .kefu-popover p {
            font-size: 12px;
            color: var(--text-muted);
        }

        .widget-icon {
            font-size: 20px;
        }

        /* 页脚 */
        footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo-desc h4 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 16px;
        }

        .footer-logo-desc p {
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .footer-links h4 {
            color: #fff;
            font-size: 15px;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        .friend-links a {
            color: rgba(255,255,255,0.6);
            text-decoration: none;
            font-size: 13px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            text-align: center;
            font-size: 12px;
        }

        .footer-bottom p {
            margin-bottom: 10px;
        }

        .ai-page-home-link {
            color: var(--primary);
            text-decoration: none;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .hero-title { font-size: 38px; }
            .about-grid, .network-grid, .case-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .comments-grid {
                grid-template-columns: 1fr 1fr;
            }
            .token-price-grid {
                grid-template-columns: 1fr;
            }
            .review-card {
                flex-direction: column;
                gap: 24px;
                text-align: center;
            }
            .review-content-box {
                margin-left: 0;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .flow-timeline {
                grid-template-columns: 1fr;
            }
            .solution-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .comments-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 动画 */
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.02); }
            100% { transform: scale(1); }
        }