/* 根变量 - 高饱和艳彩风 & 浅色高对比度基调 */
        :root {
            --primary: #0052ff; /* 极客蓝 */
            --primary-glow: rgba(0, 82, 255, 0.15);
            --secondary: #7928ca; /* 霓虹紫 */
            --accent: #ff007a; /* 荧光粉 */
            --gradient-primary: linear-gradient(135deg, #0052ff 0%, #7928ca 50%, #ff007a 100%);
            --gradient-hover: linear-gradient(135deg, #ff007a 0%, #7928ca 50%, #0052ff 100%);
            --background: #f8fafc;
            --card-bg: #ffffff;
            --text-main: #0f172a;
            --text-muted: #475569;
            --border-color: #e2e8f0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 40px rgba(0, 82, 255, 0.08);
            --radius-lg: 16px;
            --radius-md: 10px;
            --container-width: 1200px;
        }

        /* 基础重置 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--background);
            color: var(--text-main);
            line-height: 1.6;
        }
        body {
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 全局排版及容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            border-radius: 2px;
            background: var(--gradient-primary);
        }
        .section-header p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 10px auto 0;
        }

        /* 按钮通用样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--gradient-primary);
            color: #ffffff !important;
            box-shadow: 0 4px 15px rgba(0, 82, 255, 0.3);
        }
        .btn-primary:hover {
            background: var(--gradient-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 0, 122, 0.4);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary) !important;
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff !important;
            transform: translateY(-2px);
        }

        /* 导航栏 */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            transition: background 0.3s;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-box {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-links {
            display: flex;
            gap: 20px;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 6px;
        }
        .nav-links a:hover, .nav-links a.active {
            color: var(--primary);
            background: var(--primary-glow);
        }
        .nav-btn {
            font-size: 0.9rem;
            padding: 8px 20px;
        }
        
        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }
        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 3px;
            transition: 0.3s;
        }

        /* 首屏 Hero 区域 (无图片) */
        .hero {
            position: relative;
            background: radial-gradient(circle at 10% 20%, rgba(0, 82, 255, 0.05) 0%, rgba(255, 0, 122, 0.05) 90%), #ffffff;
            padding: 120px 0 100px;
            text-align: center;
            overflow: hidden;
        }
        /* 科技感几何装饰块 */
        .hero-decor-1, .hero-decor-2 {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            z-index: 1;
            opacity: 0.6;
        }
        .hero-decor-1 {
            top: -10%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: var(--primary);
        }
        .hero-decor-2 {
            bottom: -10%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: var(--accent);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: var(--gradient-primary);
            color: #ffffff;
            font-size: 0.85rem;
            font-weight: 700;
            border-radius: 20px;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 span {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero p {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 35px;
            line-height: 1.6;
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .stats-bar {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 40px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
            box-shadow: var(--shadow-lg);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
            border: 1px solid var(--border-color);
        }
        .stat-item h3 {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }
        .stat-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
        }

        /* 关于我们与平台介绍 */
        .about-section {
            background-color: var(--card-bg);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }
        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1rem;
        }
        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        .about-feat-item {
            background: var(--background);
            padding: 20px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--primary);
        }
        .about-feat-item h4 {
            font-size: 1rem;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .about-feat-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }
        /* 右侧展示纯色渐变框而非图片，符合首屏后图片规则，此处可用小图或插图，但既然要求专业大气，我们用扁平化卡片式设计代替大图 */
        .about-display {
            background: var(--gradient-primary);
            border-radius: var(--radius-lg);
            padding: 40px;
            color: #ffffff;
            min-height: 350px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: var(--shadow-lg);
        }
        .about-display h4 {
            font-size: 1.6rem;
            margin-bottom: 15px;
        }
        .about-display ul {
            list-style: none;
        }
        .about-display li {
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }
        .about-display li::before {
            content: '✓';
            background: rgba(255,255,255,0.2);
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
        }

        /* 全平台 AIGC 服务 */
        .services-section {
            background: var(--background);
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: var(--card-bg);
            padding: 35px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: transform 0.3s ease;
            transform-origin: left;
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .service-card:hover::before {
            transform: scaleX(1);
        }
        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: var(--primary-glow);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 24px;
            font-weight: 700;
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .service-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .service-tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            background: var(--background);
            color: var(--text-muted);
            border-radius: 4px;
        }

        /* 标签云 - 支持的 AI 平台 */
        .brand-cloud-section {
            background: #ffffff;
            text-align: center;
            padding: 60px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .cloud-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-muted);
            margin-bottom: 30px;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .cloud-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .cloud-tag {
            font-size: 0.9rem;
            font-weight: 600;
            padding: 8px 18px;
            background: var(--background);
            color: var(--text-main);
            border-radius: 30px;
            border: 1px solid var(--border-color);
            transition: all 0.2s;
        }
        .cloud-tag:hover {
            background: var(--gradient-primary);
            color: #ffffff;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* 一站式 AIGC 制作与解决方案 */
        .solutions-section {
            background: var(--background);
        }
        .solution-tabs-content {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .sol-list {
            list-style: none;
        }
        .sol-list li {
            margin-bottom: 15px;
            padding-left: 24px;
            position: relative;
            font-size: 0.95rem;
            color: var(--text-muted);
        }
        .sol-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        /* 案例展示 */
        .cases-section {
            background: #ffffff;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .case-card {
            background: var(--background);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }
        .case-card:hover {
            transform: translateY(-5px);
        }
        .case-img-holder {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #e2e8f0;
        }
        .case-img-holder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-info {
            padding: 24px;
        }
        .case-cat {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .case-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .case-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 标准化流程 & 技术标准 & 服务网络 */
        .flow-section {
            background: var(--background);
        }
        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .step-card {
            background: var(--card-bg);
            padding: 30px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            position: relative;
            text-align: center;
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #ffffff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            margin-bottom: 20px;
        }
        .step-card h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 培训版块 */
        .training-section {
            background: #ffffff;
        }
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .training-info h3 {
            font-size: 1.8rem;
            margin-bottom: 16px;
        }
        .training-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-top: 24px;
        }
        .training-item {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 16px;
            background: var(--background);
            border-radius: var(--radius-md);
            border-left: 4px solid var(--secondary);
        }
        .training-item-icon {
            font-weight: 800;
            color: var(--secondary);
            font-size: 1.2rem;
        }
        .training-cert-badge {
            background: #fffbeb;
            border: 1px solid #fef3c7;
            padding: 30px;
            border-radius: var(--radius-lg);
            text-align: center;
        }
        .training-cert-badge h4 {
            color: #b45309;
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .training-cert-badge p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 对比评测 */
        .comparison-section {
            background: var(--background);
        }
        .comp-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--gradient-primary);
            color: #ffffff;
            padding: 30px 40px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .comp-score-box {
            text-align: right;
        }
        .comp-score {
            font-size: 2.5rem;
            font-weight: 900;
        }
        .comp-table-container {
            background: var(--card-bg);
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-color);
            border-top: none;
            overflow-x: auto;
        }
        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }
        .comp-table th, .comp-table td {
            padding: 16px;
            border-bottom: 1px solid var(--border-color);
        }
        .comp-table th {
            font-weight: 700;
            color: var(--text-main);
        }
        .comp-table td {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .highlight-row {
            background: var(--primary-glow);
            font-weight: 600;
        }
        .highlight-row td {
            color: var(--primary);
        }

        /* Token 比价与加盟代理 */
        .token-agent-section {
            background: #ffffff;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
        }
        .token-box, .agent-box {
            background: var(--background);
            padding: 40px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .token-box h3, .agent-box h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .token-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 15px;
        }
        .token-table th, .token-table td {
            padding: 10px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .token-table th {
            text-align: left;
            color: var(--text-main);
        }
        .token-table td {
            color: var(--text-muted);
        }
        .token-price-tag {
            color: var(--accent);
            font-weight: 700;
        }

        /* 资讯 / 知识库 */
        .news-section {
            background: var(--background);
        }
        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .news-item {
            background: var(--card-bg);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s;
        }
        .news-item:hover {
            border-color: var(--primary);
            transform: translateX(5px);
        }
        .news-link {
            font-weight: 600;
            color: var(--text-main);
            font-size: 1.05rem;
        }
        .news-link:hover {
            color: var(--primary);
        }
        .news-date {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 客户评论 */
        .testimonials-section {
            background: #ffffff;
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .testi-card {
            background: var(--background);
            padding: 30px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .testi-stars {
            color: #f59e0b;
            margin-bottom: 15px;
            font-size: 1.2rem;
        }
        .testi-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-style: italic;
        }
        .testi-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testi-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }
        .testi-info h4 {
            font-size: 0.95rem;
            color: var(--text-main);
            font-weight: 700;
        }
        .testi-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 帮助中心 & FAQ */
        .faq-section {
            background: var(--background);
        }
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
        }
        .faq-question {
            padding: 20px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s;
        }
        .faq-question:hover {
            background: rgba(0, 82, 255, 0.02);
        }
        .faq-icon-arrow {
            width: 10px;
            height: 10px;
            border-right: 2px solid var(--text-muted);
            border-bottom: 2px solid var(--text-muted);
            transform: rotate(45deg);
            transition: transform 0.3s;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: #fafafa;
        }
        .faq-answer-content {
            padding: 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
        }
        .faq-item.active .faq-icon-arrow {
            transform: rotate(-135deg);
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
        }

        /* 智能需求匹配与联系我们 */
        .contact-section {
            background: #ffffff;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }
        .contact-form-box {
            background: var(--background);
            padding: 40px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            background: #ffffff;
            color: var(--text-main);
            font-size: 0.95rem;
            transition: border-color 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }
        .contact-info-box {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .info-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .info-card {
            background: var(--background);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }
        .info-card h4 {
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .info-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .qr-area {
            background: var(--background);
            border-radius: var(--radius-lg);
            padding: 30px;
            display: flex;
            align-items: center;
            gap: 24px;
            margin-top: 30px;
            border: 1px dashed var(--primary);
        }
        .qr-img {
            width: 100px;
            height: 100px;
            background: #fff;
            padding: 5px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
        }
        .qr-text h4 {
            color: var(--text-main);
            margin-bottom: 5px;
        }
        .qr-text p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 友情链接区 */
        .friend-links-section {
            background: #f1f5f9;
            padding: 30px 0;
            border-top: 1px solid var(--border-color);
        }
        .friend-links-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
            font-size: 0.9rem;
        }
        .friend-links-wrap a {
            color: var(--text-muted);
            background: #ffffff;
            padding: 6px 14px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }
        .friend-links-wrap a:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* 页脚 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            color: #ffffff;
            font-size: 1.5rem;
            margin-bottom: 15px;
        }
        .footer-brand p {
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 20px;
            position: relative;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -6px;
            width: 30px;
            height: 2px;
            background: var(--gradient-primary);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 12px;
        }
        .footer-col a {
            color: #94a3b8;
        }
        .footer-col a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }
        .footer-bottom p {
            font-size: 0.85rem;
        }

        /* 浮动客服 & 返回顶部 */
        .floating-widget {
            position: fixed;
            right: 24px;
            bottom: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #ffffff;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
            border: 1px solid var(--border-color);
            position: relative;
        }
        .float-btn:hover {
            transform: scale(1.05);
            background: var(--gradient-primary);
            color: #ffffff;
            border-color: transparent;
        }
        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }
        .float-btn-kefu {
            background: var(--gradient-primary);
            color: #ffffff;
            border: none;
        }
        .float-btn-kefu:hover {
            background: var(--gradient-hover);
        }
        .qr-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            display: none;
            flex-direction: column;
            align-items: center;
            width: 140px;
        }
        .float-btn-kefu:hover .qr-popover {
            display: flex;
        }
        .qr-popover img {
            width: 110px;
            height: 110px;
            margin-bottom: 8px;
        }
        .qr-popover span {
            font-size: 0.75rem;
            color: var(--text-main);
            font-weight: 600;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .services-grid, .cases-grid, .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .token-agent-section {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: var(--shadow-md);
                gap: 15px;
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .about-grid, .training-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .services-grid, .cases-grid, .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .steps-container {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 24px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .info-cards {
                grid-template-columns: 1fr;
            }
        }