:root {
            --primary: #FF5500;
            --primary-hover: #E04800;
            --primary-light: #FFF0E5;
            --gradient-start: #FF7700;
            --gradient-end: #FF3300;
            --dark: #1F1F1F;
            --dark-gray: #333333;
            --light-gray: #F8F9FA;
            --border-color: #EAEAEA;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 10px 30px rgba(255, 85, 0, 0.08);
            --shadow-lg: 0 20px 40px rgba(0,0,0,0.1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: var(--font-family);
            color: var(--dark-gray);
            background-color: #FFFFFF;
            -webkit-text-size-adjust: 100%;
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

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

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

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

        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .section-desc {
            font-size: 16px;
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
            color: #FFFFFF;
            box-shadow: 0 4px 15px rgba(255, 85, 0, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 85, 0, 0.4);
        }

        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--dark);
            border: 2px solid var(--border-color);
        }

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

        /* 顶部导航 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

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

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

        .ai-page-logo {
            height: 40px;
            object-fit: contain;
        }

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

        .nav-item {
            font-size: 15px;
            font-weight: 500;
            color: var(--dark-gray);
            padding: 5px 0;
            position: relative;
        }

        .nav-item::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.3s ease;
        }

        .nav-item:hover::after {
            width: 100%;
        }

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

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

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

        /* Hero首屏 - 严禁出现任何图片，采用纯CSS渲染科技感与炽艳风格 */
        .hero {
            padding-top: 150px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 80% 20%, rgba(255, 85, 0, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(255, 51, 0, 0.05) 0%, transparent 50%),
                        var(--light-gray);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(255,85,0,0.03) 0%, transparent 70%);
            pointer-events: none;
            animation: rotateBg 40s linear infinite;
        }

        @keyframes rotateBg {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

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

        .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(255, 85, 0, 0.1);
            color: var(--primary);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 25px;
            border: 1px solid rgba(255, 85, 0, 0.2);
        }

        .hero-title {
            font-size: 48px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 25px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: #555555;
            margin-bottom: 40px;
            line-height: 1.8;
        }

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

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .stat-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

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

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: #666666;
            font-weight: 500;
        }

        /* 平台介绍 */
        .intro-section {
            background-color: #FFFFFF;
        }

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

        .intro-text-box h3 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .intro-text-box p {
            font-size: 16px;
            line-height: 1.8;
            color: #555;
            margin-bottom: 20px;
        }

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

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

        .highlight-icon {
            width: 24px;
            height: 24px;
            background-color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: bold;
            flex-shrink: 0;
            font-size: 14px;
        }

        .highlight-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .highlight-content p {
            font-size: 13px;
            color: #777;
            margin: 0;
        }

        /* 平台模型支持墙 */
        .model-wall {
            background-color: var(--light-gray);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

        .model-wall-title {
            text-align: center;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 25px;
            color: var(--dark-gray);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag-item {
            background-color: #FFFFFF;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 14px;
            color: var(--dark-gray);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
        }

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

        /* 服务能力与制作 */
        .services-section {
            background-color: var(--light-gray);
        }

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

        .service-card {
            background-color: #FFFFFF;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

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

        .service-icon-box {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary);
            font-size: 24px;
            font-weight: bold;
        }

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

        .service-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 全行业解决方案与服务网络 */
        .network-section {
            background-color: #FFFFFF;
        }

        .solution-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 50px;
        }

        .solution-card {
            background-color: var(--light-gray);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid var(--border-color);
            text-align: center;
            transition: all 0.3s ease;
        }

        .solution-card:hover {
            background-color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .solution-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .solution-detail {
            font-size: 14px;
            color: #666;
        }

        .network-map-box {
            background: linear-gradient(135deg, #1A1A1A, #2A2A2A);
            border-radius: 16px;
            padding: 40px;
            color: #FFFFFF;
            text-align: center;
        }

        .network-map-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 15px;
            color: #FFFFFF;
        }

        .network-map-desc {
            font-size: 15px;
            color: #BBBBBB;
            margin-bottom: 30px;
        }

        .city-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
        }

        .city-tag {
            background-color: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 14px;
            color: #FFFFFF;
            transition: all 0.3s ease;
        }

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

        /* 流程与技术标准 */
        .process-section {
            background-color: var(--light-gray);
        }

        .step-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .step-card {
            background-color: #FFFFFF;
            border-radius: 12px;
            padding: 30px 24px;
            position: relative;
            border: 1px solid var(--border-color);
        }

        .step-number {
            position: absolute;
            top: -20px;
            left: 24px;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(255,85,0,0.3);
        }

        .step-title {
            font-size: 18px;
            font-weight: 700;
            margin-top: 10px;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .step-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 技术指标表格 */
        .tech-table-wrapper {
            margin-top: 50px;
            background-color: #FFFFFF;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow-x: auto;
        }

        .tech-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .tech-table th {
            background-color: var(--light-gray);
            color: var(--dark);
            padding: 16px 24px;
            font-weight: 700;
            border-bottom: 2px solid var(--border-color);
        }

        .tech-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

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

        /* 案例展示区 */
        .case-section {
            background-color: #FFFFFF;
        }

        .case-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 20px;
        }

        .case-item {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            height: 350px;
        }

        .case-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .case-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.85));
            padding: 24px;
            color: #FFFFFF;
            transition: all 0.3s ease;
        }

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

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

        .case-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .case-desc {
            font-size: 13px;
            color: #DDDDDD;
        }

        /* 对比评测板块 */
        .comparison-section {
            background-color: var(--light-gray);
        }

        .rating-box {
            background-color: #FFFFFF;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 30px;
            text-align: center;
            max-width: 500px;
            margin: 0 auto 40px auto;
            box-shadow: var(--shadow-sm);
        }

        .rating-score {
            font-size: 64px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .rating-stars {
            color: #FFCC00;
            font-size: 24px;
            margin-bottom: 8px;
        }

        .rating-label {
            font-size: 16px;
            color: var(--dark-gray);
            font-weight: 700;
        }

        .comparison-table-wrapper {
            background-color: #FFFFFF;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow-x: auto;
            box-shadow: var(--shadow-sm);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: center;
            min-width: 800px;
        }

        .comparison-table th {
            padding: 20px;
            font-weight: 700;
            border-bottom: 2px solid var(--border-color);
        }

        .comparison-table td {
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        .comparison-table tr:hover {
            background-color: var(--light-gray);
        }

        .text-left {
            text-align: left;
        }

        .col-highlight {
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        /* 需求匹配与表单 */
        .demand-section {
            background-color: #FFFFFF;
        }

        .demand-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }

        .demand-info h3 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .demand-info p {
            font-size: 16px;
            color: #666666;
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .benefit-list {
            display: grid;
            gap: 15px;
        }

        .benefit-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
            font-size: 15px;
        }

        .benefit-check {
            color: var(--primary);
            font-weight: bold;
        }

        .demand-form-box {
            background-color: var(--light-gray);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            font-size: 15px;
            background-color: #FFFFFF;
            transition: border-color 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }

        /* Token比价与培训服务 */
        .token-training-section {
            background-color: var(--light-gray);
        }

        .token-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
        }

        .token-box {
            background-color: #FFFFFF;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }

        .token-box h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .token-list {
            display: grid;
            gap: 12px;
        }

        .token-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 16px;
            background-color: var(--light-gray);
            border-radius: 8px;
            font-size: 14px;
        }

        .token-name {
            font-weight: 600;
        }

        .token-price {
            color: var(--primary);
            font-weight: 700;
        }

        .training-box {
            background-color: #FFFFFF;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .training-box h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .training-list {
            display: grid;
            gap: 15px;
            margin-bottom: 25px;
        }

        .training-item {
            padding: 10px 14px;
            border-left: 4px solid var(--primary);
            background-color: var(--light-gray);
            font-size: 14px;
            font-weight: 600;
        }

        /* 客户评论卡片 */
        .comments-section {
            background-color: #FFFFFF;
        }

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

        .comment-card {
            background-color: var(--light-gray);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .comment-text {
            font-size: 14px;
            color: #555555;
            line-height: 1.6;
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .user-info h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark);
        }

        .user-info p {
            font-size: 12px;
            color: #888888;
        }

        /* FAQ 折叠面板与术语百科 */
        .faq-section {
            background-color: var(--light-gray);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
        }

        .faq-list {
            display: grid;
            gap: 15px;
        }

        .faq-item {
            background-color: #FFFFFF;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-header {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

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

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

        .faq-content {
            padding: 20px 24px;
            font-size: 14px;
            color: #666666;
            line-height: 1.6;
            border-top: 1px solid var(--border-color);
        }

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

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

        .faq-item.active .faq-body {
            max-height: 200px;
        }

        .wiki-box {
            background-color: #FFFFFF;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            height: fit-content;
        }

        .wiki-box h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .wiki-list {
            display: grid;
            gap: 15px;
        }

        .wiki-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .wiki-item p {
            font-size: 13px;
            color: #666;
            line-height: 1.5;
        }

        /* 行业资讯 / 知识库 */
        .news-section {
            background-color: #FFFFFF;
        }

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

        .news-card {
            background-color: var(--light-gray);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }

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

        .news-img-box {
            height: 180px;
            background-color: #DDD;
            overflow: hidden;
        }

        .news-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-content {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-date {
            font-size: 12px;
            color: #999999;
            margin-bottom: 8px;
        }

        .news-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-title a:hover {
            color: var(--primary);
        }

        .news-desc {
            font-size: 13px;
            color: #666666;
            line-height: 1.6;
            margin-bottom: 15px;
            flex-grow: 1;
        }

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

        /* 招商代理与合作 */
        .agent-section {
            background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
            color: #FFFFFF;
            text-align: center;
            padding: 80px 20px;
        }

        .agent-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .agent-title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .agent-desc {
            font-size: 18px;
            opacity: 0.9;
            margin-bottom: 35px;
            line-height: 1.8;
        }

        .agent-btn {
            background-color: #FFFFFF;
            color: var(--primary);
            font-weight: 700;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
        }

        .agent-btn:hover {
            background-color: var(--light-gray);
            color: var(--primary-hover);
        }

        /* 联系我们与页脚 */
        .contact-section {
            background-color: #1A1A1A;
            color: #FFFFFF;
            padding: 80px 0 40px 0;
            border-bottom: 1px solid #333333;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 60px;
        }

        .contact-info-col h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

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

        .contact-list {
            display: grid;
            gap: 15px;
            font-size: 14px;
            color: #CCCCCC;
        }

        .contact-list span {
            color: #FFFFFF;
            font-weight: 600;
        }

        .qr-box {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .qr-item {
            text-align: center;
        }

        .qr-item img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            margin-bottom: 8px;
            border: 2px solid #333333;
        }

        .qr-item p {
            font-size: 12px;
            color: #AAAAAA;
        }

        /* 友情链接区与版权声明 */
        .footer-bottom {
            background-color: #111111;
            padding: 30px 0;
            color: #888888;
            font-size: 13px;
        }

        .footer-bottom-container {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px 25px;
            padding-bottom: 20px;
            border-bottom: 1px solid #222222;
        }

        .friend-links a {
            color: #888888;
        }

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

        .copyright-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

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

        .kf-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(255,85,0,0.3);
            cursor: pointer;
            position: relative;
            transition: all 0.3s ease;
        }

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

        .kf-tooltip {
            position: absolute;
            right: 60px;
            background-color: #FFFFFF;
            color: var(--dark);
            padding: 15px;
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            width: 180px;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .kf-tooltip img {
            width: 120px;
            height: 120px;
            margin: 0 auto 8px auto;
        }

        .kf-tooltip p {
            font-size: 12px;
            color: #666;
            margin: 0;
        }

        .kf-btn:hover .kf-tooltip {
            opacity: 1;
            pointer-events: auto;
        }

        .back-to-top {
            width: 50px;
            height: 50px;
            background-color: #FFFFFF;
            color: var(--dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .back-to-top:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 38px;
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: 1fr 1fr;
            }
            .intro-grid, .demand-layout, .token-grid, .faq-layout, .contact-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .comments-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid var(--border-color);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .hero-title {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
            .step-timeline {
                grid-template-columns: 1fr;
            }
            .solution-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comments-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .case-item {
                height: 250px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
        }