/* 样式重置与全局基础变量 */
        :root {
            --primary: #FACC15; /* 鲜黄耀眼风 - 亮黄色 */
            --primary-hover: #E2B80D;
            --primary-light: #FEF08A;
            --dark: #111827; /* 深色文字与暗底 */
            --dark-light: #374151;
            --light: #F9FAFB;
            --white: #FFFFFF;
            --gray-100: #F3F4F6;
            --gray-200: #E5E7EB;
            --gray-300: #D1D5DB;
            --gray-600: #4B5563;
            --border-radius: 12px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --max-width: 1200px;
        }

        * {
            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(--light);
            color: var(--dark);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        /* 基础容器 */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

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

        button, input, select, textarea {
            font-family: inherit;
        }

        /* 按钮通用样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--border-radius);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--dark);
            box-shadow: 0 4px 12px rgba(250, 204, 21, 0.3);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(250, 204, 21, 0.4);
        }

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

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

        /* 导航栏 */
        .header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--gray-200);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }

        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

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

        .logo-area img {
            height: 48px;
            width: auto;
        }

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

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

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--dark-light);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-link:hover {
            color: var(--dark);
            background-color: var(--primary-light);
        }

        .nav-btn-group {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--dark);
            cursor: pointer;
        }

        /* 主体内容排版 */
        main {
            flex-grow: 1;
        }

        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--gray-100);
        }

        .section-bg-light {
            background-color: var(--gray-100);
        }

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 60px;
        }

        .section-header .subtitle {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--dark);
            font-size: 14px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 20px;
        }

        .section-header p {
            color: var(--gray-600);
            font-size: 16px;
        }

        /* 1. Hero 首页区 - 严格限制：首屏不要出现图片 */
        .hero {
            background: linear-gradient(135deg, #FFFFFF 0%, #FFFDF0 50%, #FFF9C4 100%);
            padding: 100px 0 120px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(250, 204, 21, 0.15) 0%, transparent 70%);
            z-index: 1;
        }

        .hero-container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 900;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero h1 span {
            background: linear-gradient(180deg, var(--dark) 60%, var(--primary) 60%);
            padding: 0 4px;
        }

        .hero p {
            font-size: 20px;
            color: var(--dark-light);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* 2. 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .stat-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 24px;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary);
            transition: var(--transition);
        }

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

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

        .stat-label {
            font-size: 14px;
            color: var(--gray-600);
            font-weight: 500;
        }

        /* 3. 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .about-content p {
            color: var(--dark-light);
            margin-bottom: 20px;
            font-size: 16px;
            line-height: 1.8;
        }

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

        .about-feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 15px;
        }

        .about-feature-item svg {
            color: var(--primary-hover);
            flex-shrink: 0;
        }

        .about-visual {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
            border: 2px solid var(--dark);
        }

        .about-visual-box {
            background-color: var(--white);
            border-radius: 8px;
            padding: 24px;
            border: 2px solid var(--dark);
        }

        .about-visual-box h4 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 12px;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 8px;
        }

        /* 4. 全平台AIGC服务 (支持平台展示) */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
            transition: var(--transition);
        }

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

        .service-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 24px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--gray-600);
            font-size: 14px;
        }

        .platform-tag-container {
            margin-top: 40px;
            background-color: var(--white);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            text-align: center;
        }

        .platform-tag-container h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .platform-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .platform-tag {
            background-color: var(--gray-100);
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--dark-light);
            border: 1px solid var(--gray-200);
            transition: var(--transition);
        }

        .platform-tag:hover {
            background-color: var(--primary);
            color: var(--dark);
            border-color: var(--primary);
        }

        /* 5. 一站式AIGC制作 & 6. 全行业解决方案 */
        .solutions-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .tab-btn {
            background-color: var(--white);
            border: 1px solid var(--gray-300);
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .solution-content h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .solution-content p {
            color: var(--gray-600);
            margin-bottom: 20px;
        }

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

        .solution-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .solution-list svg {
            color: var(--primary-hover);
        }

        /* 7. 全国服务网络 */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }

        .network-info h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .network-info p {
            color: var(--gray-600);
            margin-bottom: 24px;
        }

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

        .network-item {
            background-color: var(--white);
            padding: 16px;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow);
        }

        .network-map-placeholder {
            background-color: var(--dark);
            color: var(--white);
            border-radius: var(--border-radius);
            padding: 40px;
            height: 350px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            border: 4px solid var(--primary);
            position: relative;
        }

        .network-map-placeholder svg {
            font-size: 60px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        /* 8. 标准化AIGC流程 */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            position: relative;
            border: 1px solid var(--gray-200);
            transition: var(--transition);
        }

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

        .step-num {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 48px;
            font-weight: 900;
            color: var(--primary-light);
            line-height: 1;
            z-index: 1;
        }

        .step-content {
            position: relative;
            z-index: 2;
        }

        .step-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            margin-top: 20px;
        }

        .step-content p {
            color: var(--gray-600);
            font-size: 14px;
        }

        /* 9. 技术标准 & API接口 */
        .tech-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .tech-box {
            background-color: var(--white);
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
        }

        .tech-box h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 20px;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
        }

        .tech-box ul {
            list-style: none;
        }

        .tech-box li {
            padding: 12px 0;
            border-bottom: 1px solid var(--gray-100);
            display: flex;
            justify-content: space-between;
            font-weight: 600;
        }

        .tech-box li span:last-child {
            color: var(--gray-600);
            font-weight: 400;
        }

        /* 10. 客户案例中心 - 含指定图文 */
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .portfolio-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
            transition: var(--transition);
        }

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

        .portfolio-img-container {
            width: 100%;
            overflow: hidden;
            background-color: var(--gray-100);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .portfolio-img-container img {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
        }

        .portfolio-info {
            padding: 24px;
        }

        .portfolio-info .tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--dark);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        .portfolio-info h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .portfolio-info p {
            color: var(--gray-600);
            font-size: 14px;
        }

        /* 11. 对比评测 - 突出推荐度 */
        .rating-box {
            background: linear-gradient(135deg, var(--dark) 0%, #1E293B 100%);
            color: var(--white);
            border-radius: var(--border-radius);
            padding: 40px;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border: 2px solid var(--primary);
        }

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

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

        .rating-title {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .rating-desc {
            color: var(--gray-300);
            font-size: 14px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background-color: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
        }

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

        .compare-table th, .compare-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--gray-200);
        }

        .compare-table th {
            background-color: var(--gray-100);
            font-weight: 800;
            color: var(--dark);
        }

        .compare-table tr:hover {
            background-color: var(--gray-100);
        }

        .compare-table td.highlight {
            background-color: rgba(250, 204, 21, 0.05);
            font-weight: 600;
        }

        .compare-table .badge {
            display: inline-block;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
        }

        .compare-table .badge-success {
            background-color: var(--primary-light);
            color: var(--dark);
        }

        /* 12. Token比价参考 */
        .token-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .token-calc {
            background-color: var(--white);
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
        }

        .token-calc h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 20px;
        }

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

        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 8px;
            font-size: 14px;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--gray-300);
            border-radius: 8px;
            background-color: var(--gray-100);
            font-size: 15px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            background-color: var(--white);
        }

        .calc-result {
            background-color: var(--primary-light);
            padding: 20px;
            border-radius: 8px;
            margin-top: 20px;
            border: 1px dashed var(--primary-hover);
        }

        .calc-result p {
            font-weight: 700;
            font-size: 16px;
        }

        /* 13. 职业技术培训 & 14. 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .training-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary);
            transition: var(--transition);
        }

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

        .training-card h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .training-card .meta {
            color: var(--gray-600);
            font-size: 13px;
            margin-bottom: 16px;
            background-color: var(--gray-100);
            padding: 4px 8px;
            border-radius: 4px;
            display: inline-block;
        }

        .training-card p {
            color: var(--dark-light);
            font-size: 14px;
            margin-bottom: 20px;
        }

        .training-card .cert-badge {
            font-weight: 700;
            color: var(--primary-hover);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* 15. 常见用户问题 FAQ & 16. 帮助中心 */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--white);
            border: 1px solid var(--gray-200);
            border-radius: var(--border-radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question:hover {
            background-color: var(--gray-100);
        }

        .faq-question::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--gray-600);
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--white);
            border-top: 0 solid var(--gray-200);
        }

        .faq-item.active .faq-answer {
            border-top-width: 1px;
            max-height: 500px; /* 足够容纳展开的内容 */
        }

        .faq-answer-inner {
            padding: 20px 24px;
            color: var(--gray-600);
            font-size: 14px;
            line-height: 1.8;
        }

        /* 17. 常见问题自助排查 */
        .troubleshoot-box {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
            margin-top: 40px;
        }

        .troubleshoot-box h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .troubleshoot-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .troubleshoot-item {
            background-color: var(--gray-100);
            padding: 20px;
            border-radius: 8px;
            border-top: 3px solid var(--dark);
        }

        .troubleshoot-item h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .troubleshoot-item p {
            font-size: 13px;
            color: var(--gray-600);
        }

        /* 18. AI术语百科 */
        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .wiki-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            border: 1px solid var(--gray-200);
            transition: var(--transition);
        }

        .wiki-card:hover {
            border-color: var(--primary);
            background-color: var(--primary-light);
        }

        .wiki-card h4 {
            font-weight: 700;
            margin-bottom: 8px;
            font-size: 15px;
        }

        .wiki-card p {
            font-size: 13px;
            color: var(--gray-600);
        }

        /* 19. 客户评论卡片 (6条) */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .comment-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
            position: relative;
        }

        .comment-card::before {
            content: "“";
            position: absolute;
            top: 10px;
            left: 20px;
            font-size: 64px;
            font-family: Georgia, serif;
            color: var(--primary-light);
            line-height: 1;
            z-index: 1;
        }

        .comment-content {
            position: relative;
            z-index: 2;
            font-size: 14px;
            color: var(--dark-light);
            margin-bottom: 20px;
            line-height: 1.8;
        }

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

        .comment-avatar {
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
        }

        .comment-info h4 {
            font-size: 14px;
            font-weight: 700;
        }

        .comment-info p {
            font-size: 12px;
            color: var(--gray-600);
        }

        /* 20. 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
        }

        .news-card-body {
            padding: 24px;
        }

        .news-card-body .date {
            font-size: 12px;
            color: var(--gray-600);
            margin-bottom: 8px;
            display: block;
        }

        .news-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-card-body p {
            font-size: 13px;
            color: var(--gray-600);
            margin-bottom: 16px;
        }

        .news-card-body a {
            font-weight: 700;
            color: var(--dark);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        /* 21. 联系我们 & 22. 加盟代理 & 23. 智能需求匹配 (表单) */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
        }

        .contact-info-panel {
            background-color: var(--dark);
            color: var(--white);
            border-radius: var(--border-radius);
            padding: 40px;
            border: 4px solid var(--primary);
        }

        .contact-info-panel h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--primary);
        }

        .contact-details {
            margin-bottom: 30px;
        }

        .contact-detail-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 20px;
        }

        .contact-detail-item svg {
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 4px;
        }

        .contact-detail-item h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .contact-detail-item p {
            color: var(--gray-300);
            font-size: 14px;
        }

        .qr-codes {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
            border-top: 1px solid var(--dark-light);
            padding-top: 30px;
        }

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

        .qr-item img {
            width: 120px;
            height: 120px;
            background-color: var(--white);
            border-radius: 8px;
            padding: 8px;
            margin-bottom: 8px;
        }

        .qr-item p {
            font-size: 12px;
            color: var(--gray-300);
        }

        .contact-form-panel {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-200);
        }

        .contact-form-panel h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 24px;
        }

        .submit-btn {
            width: 100%;
            background-color: var(--primary);
            color: var(--dark);
            font-weight: 700;
            border: none;
            padding: 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }

        .submit-btn:hover {
            background-color: var(--primary-hover);
        }

        /* 友情链接与底部导航 */
        .footer {
            background-color: var(--dark);
            color: var(--white);
            padding: 60px 0 20px;
            border-top: 4px solid var(--primary);
        }

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

        .footer-logo img {
            height: 40px;
            margin-bottom: 16px;
        }

        .footer-logo p {
            color: var(--gray-300);
            font-size: 14px;
            line-height: 1.6;
        }

        .footer-links h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--primary);
        }

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

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

        .footer-links a {
            color: var(--gray-300);
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--dark-light);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--gray-300);
        }

        .friend-links {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--dark-light);
            font-size: 13px;
            color: var(--gray-300);
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .friend-links a {
            color: var(--gray-300);
            text-decoration: underline;
        }

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

        /* 悬浮客服面板 */
        .floating-kefu {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .kefu-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            cursor: pointer;
            transition: var(--transition);
            font-size: 20px;
            border: 2px solid var(--dark);
        }

        .kefu-btn:hover {
            background-color: var(--dark);
            color: var(--primary);
            transform: scale(1.1);
        }

        .kefu-popover {
            position: absolute;
            bottom: 70px;
            right: 0;
            width: 220px;
            background-color: var(--white);
            border: 2px solid var(--dark);
            border-radius: var(--border-radius);
            padding: 16px;
            box-shadow: var(--shadow-hover);
            display: none;
            text-align: center;
        }

        .kefu-popover img {
            width: 100%;
            height: auto;
            border-radius: 4px;
            margin-bottom: 8px;
        }

        .kefu-popover p {
            font-size: 12px;
            font-weight: 700;
            color: var(--dark);
        }

        .kefu-container:hover .kefu-popover {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid, .services-grid, .training-grid, .portfolio-grid, .comments-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-container {
                padding: 0 16px;
            }
            .nav-links {
                display: none; /* 原生JS控制展开 */
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                border-bottom: 1px solid var(--gray-200);
                padding: 20px;
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-btn-group {
                display: none;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero p {
                font-size: 16px;
            }
            .about-grid, .solutions-grid, .network-grid, .tech-grid, .token-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .training-grid, .portfolio-grid, .comments-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .steps-container {
                grid-template-columns: 1fr;
            }
            .troubleshoot-steps {
                grid-template-columns: 1fr;
            }
            .wiki-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .rating-box {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }
        }