:root {
            --primary: #7000ff;
            --secondary: #ff007f;
            --accent: #00f0ff;
            --dark-bg: #12121c;
            --light-bg: #f8f7fc;
            --card-bg: #ffffff;
            --text-main: #1b1b29;
            --text-muted: #5e5d75;
            --gradient-main: linear-gradient(135deg, var(--primary), var(--secondary));
            --gradient-cool: linear-gradient(135deg, var(--primary), var(--accent));
            --shadow-sm: 0 4px 6px -1px rgba(112, 0, 255, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            --shadow-md: 0 10px 15px -3px rgba(112, 0, 255, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 20px 25px -5px rgba(112, 0, 255, 0.12), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
            --radius: 12px;
            --container-w: 1200px;
        }

        /* 基础复位 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--light-bg);
            color: var(--text-main);
            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;
        }

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

        .section-padding {
            padding: 90px 0;
        }

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

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--text-main);
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--gradient-main);
            border-radius: 2px;
        }

        .section-title p {
            font-size: 1.1rem;
            color: var(--text-muted);
        }

        /* 统一按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 30px;
            border: none;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            font-size: 1rem;
        }

        .btn:hover {
            transform: translateY(-2px);
        }

        .btn-primary {
            background: var(--gradient-main);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.3);
        }

        .btn-primary:hover {
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.4);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        /* 顶部导航 */
        header {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(112, 0, 255, 0.08);
            box-shadow: var(--shadow-sm);
        }

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

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

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

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

        .nav-menu a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--primary);
            background: rgba(112, 0, 255, 0.05);
        }

        .nav-btn {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
            padding: 4px;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text-main);
            transition: all 0.3s;
        }

        /* 首屏 Hero (无图) */
        .hero {
            padding-top: 150px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 80% 20%, rgba(0, 240, 255, 0.15), transparent 45%),
                        radial-gradient(circle at 10% 80%, rgba(112, 0, 255, 0.12), transparent 50%),
                        var(--light-bg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(0deg, var(--light-bg) 0%, transparent 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 850px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            background: var(--gradient-cool);
            color: #ffffff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
            box-shadow: 0 4px 10px rgba(0, 240, 255, 0.2);
        }

        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 24px;
        }

        .hero h1 span {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 35px;
            line-height: 1.8;
        }

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

        /* 数据指标卡片 */
        .stats-bar {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
            box-shadow: var(--shadow-lg);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            border: 1px solid rgba(112, 0, 255, 0.08);
        }

        .stat-item {
            text-align: center;
            border-right: 1px solid rgba(112, 0, 255, 0.08);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--gradient-cool);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 关于我们 */
        .about-section {
            background: var(--card-bg);
            border-bottom: 1px solid rgba(112, 0, 255, 0.05);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            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: 1.05rem;
        }

        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .about-feat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: var(--text-main);
        }

        .about-feat-item svg {
            color: var(--secondary);
            flex-shrink: 0;
        }

        .about-image img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            border: 4px solid var(--card-bg);
            outline: 2px solid var(--primary);
        }

        /* 全平台AIGC服务 */
        .service-platforms {
            background: var(--light-bg);
        }

        .platform-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
            gap: 15px;
            margin-top: 30px;
        }

        .platform-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 18px 10px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(112, 0, 255, 0.04);
            font-weight: 600;
            color: var(--text-main);
            transition: all 0.3s ease;
        }

        .platform-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 8px 20px rgba(112, 0, 255, 0.15);
            background: var(--gradient-main);
            color: #ffffff;
        }

        /* 一站式AIGC制作 */
        .creation-section {
            background: var(--card-bg);
        }

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

        .creation-card {
            background: var(--light-bg);
            border-radius: var(--radius);
            padding: 35px 25px;
            transition: all 0.3s ease;
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .creation-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--gradient-main);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .creation-card:hover {
            transform: translateY(-5px);
            background: var(--card-bg);
            border-color: rgba(112, 0, 255, 0.1);
            box-shadow: var(--shadow-lg);
        }

        .creation-card:hover::before {
            transform: scaleX(1);
        }

        .creation-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(112, 0, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary);
        }

        .creation-card:hover .creation-icon {
            background: var(--gradient-main);
            color: #fff;
        }

        .creation-card h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .creation-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 全行业解决方案 */
        .solutions {
            background: var(--light-bg);
        }

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

        .solution-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px 20px;
            text-align: center;
            border: 1px solid rgba(112, 0, 255, 0.05);
            box-shadow: var(--shadow-sm);
        }

        .solution-card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .solution-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 全国服务网络 & 加盟代理 */
        .network-section {
            background: var(--card-bg);
        }

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

        .network-content h3 {
            font-size: 1.8rem;
            margin-bottom: 15px;
            color: var(--text-main);
        }

        .network-content p {
            color: var(--text-muted);
            margin-bottom: 25px;
        }

        .partner-box {
            background: var(--light-bg);
            border-left: 4px solid var(--secondary);
            padding: 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin-top: 20px;
        }

        .partner-box h4 {
            color: var(--text-main);
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .network-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .network-item {
            background: var(--light-bg);
            padding: 15px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
        }

        /* 流程步骤 */
        .flow-section {
            background: var(--light-bg);
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            position: relative;
        }

        .flow-card {
            background: var(--card-bg);
            padding: 30px 20px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            text-align: center;
            position: relative;
            border: 1px solid rgba(112, 0, 255, 0.05);
        }

        .flow-num {
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 40px;
            background: var(--gradient-main);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            box-shadow: 0 4px 10px rgba(112, 0, 255, 0.3);
        }

        .flow-card h3 {
            margin-top: 15px;
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .flow-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 技术标准 */
        .tech-standards {
            background: var(--card-bg);
        }

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

        .tech-card {
            background: var(--light-bg);
            padding: 30px;
            border-radius: var(--radius);
            border-top: 4px solid var(--accent);
        }

        .tech-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }

        /* 案例展示 */
        .portfolio-section {
            background: var(--light-bg);
        }

        .portfolio-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .portfolio-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: transform 0.3s;
        }

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

        .portfolio-img {
            width: 100%;
            height: 250px;
            object-fit: cover;
        }

        .portfolio-info {
            padding: 25px;
        }

        .portfolio-tag {
            display: inline-block;
            background: rgba(112, 0, 255, 0.08);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 15px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .portfolio-info h3 {
            font-size: 1.35rem;
            margin-bottom: 10px;
        }

        .portfolio-info p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 对比评测 */
        .compare-section {
            background: var(--card-bg);
        }

        .compare-header {
            background: var(--gradient-main);
            color: #fff;
            padding: 30px;
            border-radius: var(--radius) var(--radius) 0 0;
            text-align: center;
        }

        .compare-header h3 {
            font-size: 1.8rem;
            margin-bottom: 10px;
        }

        .rating-box {
            display: inline-flex;
            align-items: center;
            gap: 15px;
            background: rgba(255, 255, 255, 0.15);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: bold;
        }

        .stars {
            color: #ffd700;
            letter-spacing: 2px;
        }

        .table-responsive {
            overflow-x: auto;
            border: 1px solid rgba(112, 0, 255, 0.1);
            border-top: none;
            border-radius: 0 0 var(--radius) var(--radius);
        }

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

        .compare-table th,
        .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(112, 0, 255, 0.05);
        }

        .compare-table th {
            background: #fcfbfe;
            color: var(--text-main);
            font-weight: 700;
        }

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

        .compare-table td:nth-child(2) {
            font-weight: 700;
            color: var(--primary);
            background: rgba(112, 0, 255, 0.02);
        }

        .status-yes {
            color: #00c853;
            font-weight: bold;
        }

        .status-no {
            color: #ff3d00;
            font-weight: bold;
        }

        /* 需求匹配表单 & 联系我们 */
        .contact-section {
            background: var(--light-bg);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 50px;
        }

        .contact-form-box {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(112, 0, 255, 0.05);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid rgba(112, 0, 255, 0.1);
            border-radius: 8px;
            background: var(--light-bg);
            color: var(--text-main);
            font-size: 1rem;
            transition: border-color 0.3s;
        }

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

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

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

        .info-card {
            background: var(--card-bg);
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            margin-bottom: 20px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .info-card-icon {
            color: var(--primary);
        }

        .info-card h4 {
            margin-bottom: 5px;
            font-size: 1.1rem;
        }

        .info-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .kefu-qrcode-box {
            text-align: center;
            background: var(--card-bg);
            padding: 20px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
        }

        .kefu-qrcode-box img {
            width: 150px;
            height: 150px;
            margin: 10px auto;
            border: 1px solid rgba(112, 0, 255, 0.1);
        }

        /* Token 比价 */
        .token-section {
            background: var(--card-bg);
        }

        /* 培训版块 */
        .training-section {
            background: var(--light-bg);
        }

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

        .training-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border-top: 4px solid var(--secondary);
        }

        .training-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .training-card ul {
            list-style: none;
            padding-left: 0;
        }

        .training-card li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 8px;
            color: var(--text-muted);
        }

        .training-card li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: bold;
        }

        /* 帮助中心 & FAQ */
        .faq-section {
            background: var(--card-bg);
        }

        .faq-wrapper {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--light-bg);
            border-radius: var(--radius);
            margin-bottom: 15px;
            overflow: hidden;
            border: 1px solid rgba(112, 0, 255, 0.05);
            transition: all 0.3s ease;
        }

        .faq-question {
            padding: 20px 25px;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-answer {
            padding: 0 25px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.active {
            border-color: var(--primary);
            background: var(--card-bg);
            box-shadow: var(--shadow-md);
        }

        .faq-item.active .faq-answer {
            padding: 0 25px 20px 25px;
            max-height: 200px;
        }

        .faq-icon {
            transition: transform 0.3s;
        }

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

        /* 故障自助排查 & 百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 40px;
        }

        .troubleshoot-box,
        .encyclopedia-box {
            background: var(--light-bg);
            padding: 30px;
            border-radius: var(--radius);
        }

        .troubleshoot-box h3,
        .encyclopedia-box h3 {
            margin-bottom: 20px;
            font-size: 1.5rem;
            color: var(--text-main);
        }

        /* 客户评论 */
        .testimonials {
            background: var(--light-bg);
        }

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

        .testimonial-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow-md);
            position: relative;
        }

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

        .testi-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient-main);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .testi-meta h4 {
            font-size: 1.05rem;
        }

        .testi-meta span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .testi-content {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* 文章列表 */
        .blog-section {
            background: var(--card-bg);
        }

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

        .blog-card {
            background: var(--light-bg);
            border-radius: var(--radius);
            padding: 25px;
            border: 1px solid rgba(112, 0, 255, 0.05);
            transition: all 0.3s;
        }

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

        .blog-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        .blog-card a {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 15px;
        }

        /* 浮动客服 */
        .floating-kefu {
            position: fixed;
            bottom: 40px;
            right: 40px;
            z-index: 999;
            background: var(--gradient-main);
            color: #fff;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px rgba(112, 0, 255, 0.35);
            cursor: pointer;
            transition: transform 0.3s;
        }

        .floating-kefu:hover {
            transform: scale(1.1);
        }

        .floating-box {
            display: none;
            position: absolute;
            bottom: 75px;
            right: 0;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            width: 250px;
            padding: 20px;
            border: 1px solid rgba(112, 0, 255, 0.1);
            color: var(--text-main);
            text-align: center;
        }

        .floating-box p {
            margin-bottom: 10px;
            font-size: 0.9rem;
            font-weight: 600;
        }

        .floating-box img {
            width: 160px;
            height: 160px;
            margin: 0 auto;
        }

        /* 底部 */
        footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 0 30px 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 50px;
            margin-bottom: 50px;
        }

        .footer-col h4 {
            color: #ffffff;
            margin-bottom: 25px;
            font-size: 1.2rem;
            position: relative;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--secondary);
        }

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

        .footer-col li {
            margin-bottom: 12px;
        }

        .footer-col a:hover {
            color: #ffffff;
        }

        .footer-about p {
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .footer-contact p {
            margin-bottom: 10px;
            font-size: 0.95rem;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 15px;
        }

        .friend-links a {
            background: rgba(255, 255, 255, 0.08);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
        }

        .friend-links a:hover {
            background: var(--gradient-main);
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 30px;
            text-align: center;
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .creation-grid,
            .training-grid,
            .testimonials-grid,
            .blog-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item {
                border-right: none;
                padding: 10px 0;
            }
            .solutions-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .about-grid,
            .network-grid,
            .flow-steps,
            .portfolio-grid,
            .contact-grid,
            .troubleshoot-grid {
                grid-template-columns: 1fr;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-lg);
                border-top: 1px solid rgba(112, 0, 255, 0.08);
            }
            .nav-menu.active {
                display: flex;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .creation-grid,
            .training-grid,
            .testimonials-grid,
            .blog-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
        }