:root {
            --bg-dark: #080b11;
            --card-bg: #111622;
            --neon-blue: #00f0ff;
            --neon-pink: #ff007f;
            --neon-green: #39ff14;
            --text-main: #e2e8f0;
            --text-muted: #94a3b8;
            --border-color: #1e293b;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            background-color: var(--bg-dark);
            color: var(--text-main);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 11, 17, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            background: linear-gradient(45deg, var(--neon-blue), var(--neon-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
        }

        .nav-link {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
            padding: 5px 10px;
            border-radius: 4px;
        }

        .nav-link:hover {
            color: var(--neon-blue);
            text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: bold;
            color: #fff;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(255, 0, 127, 0.6);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            transition: 0.3s;
        }

        /* Hero 首屏 - 霓虹炫彩无图设计 */
        .hero {
            padding: 160px 0 100px;
            position: relative;
            background: radial-gradient(circle at 50% 30%, rgba(0, 240, 255, 0.08), transparent 60%),
                        radial-gradient(circle at 80% 70%, rgba(255, 0, 127, 0.05), transparent 50%);
            text-align: center;
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--neon-blue);
            color: var(--neon-blue);
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 2px;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
        }

        h1.hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 24px;
            background: linear-gradient(to right, #fff, var(--text-muted), var(--neon-blue), var(--neon-pink));
            background-size: 200% auto;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: textShimmer 4s linear infinite;
        }

        .hero-desc {
            max-width: 800px;
            margin: 0 auto 40px;
            font-size: 1.2rem;
            color: var(--text-muted);
        }

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

        .btn-primary {
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
            color: #fff;
            padding: 15px 35px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: bold;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.4);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            transform: scale(1.05);
            box-shadow: 0 0 35px rgba(255, 0, 127, 0.7);
        }

        .btn-secondary {
            background: transparent;
            border: 2px solid var(--neon-blue);
            color: var(--neon-blue);
            padding: 13px 33px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: bold;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.3);
        }

        /* 统一 Section 样式 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-subtitle {
            color: var(--neon-pink);
            font-size: 0.9rem;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
            display: block;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
        }

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

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            border-color: var(--neon-blue);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
            transform: translateY(-5px);
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--neon-blue);
            margin-bottom: 10px;
            font-family: sans-serif;
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
        }

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

        /* 关于我们 */
        .about-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #fff;
        }

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

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

        .about-feature-item {
            background: rgba(255, 255, 255, 0.02);
            border-left: 3px solid var(--neon-pink);
            padding: 15px;
            border-radius: 0 8px 8px 0;
        }

        .about-feature-item h4 {
            color: #fff;
            margin-bottom: 5px;
            font-size: 1rem;
        }

        .about-feature-item p {
            font-size: 0.85rem;
            margin: 0;
        }

        .about-tech-stack {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            position: relative;
        }

        .stack-title {
            font-size: 1.1rem;
            font-weight: bold;
            margin-bottom: 20px;
            color: var(--neon-blue);
            text-align: center;
        }

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

        .stack-tag {
            background: rgba(0, 240, 255, 0.05);
            border: 1px solid rgba(0, 240, 255, 0.2);
            color: var(--text-main);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            transition: all 0.3s;
        }

        .stack-tag:hover {
            border-color: var(--neon-pink);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.2);
            color: var(--neon-pink);
        }

        /* 平台服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px 30px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(to right, var(--neon-blue), var(--neon-pink));
            opacity: 0;
            transition: opacity 0.3s;
        }

        .service-card:hover {
            transform: translateY(-10px);
            border-color: var(--neon-blue);
            box-shadow: 0 10px 30px rgba(0, 240, 255, 0.1);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--neon-blue);
            display: inline-block;
        }

        .service-card h3 {
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 15px;
        }

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

        /* 自动化制作流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
        }

        .step-num {
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #fff;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
        }

        .step-card h3 {
            margin-top: 15px;
            margin-bottom: 10px;
            font-size: 1.2rem;
            color: #fff;
        }

        .step-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: linear-gradient(180deg, var(--card-bg), rgba(17, 22, 34, 0.5));
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s ease;
        }

        .solution-card:hover {
            border-color: var(--neon-pink);
            box-shadow: 0 0 20px rgba(255, 0, 127, 0.15);
        }

        .solution-card h3 {
            color: var(--neon-blue);
            font-size: 1.3rem;
            margin-bottom: 15px;
        }

        .solution-list {
            list-style: none;
            padding: 0;
        }

        .solution-list li {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-list li::before {
            content: "✦";
            color: var(--neon-green);
        }

        /* 全国服务网络 */
        .network-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .network-map-placeholder {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.05), rgba(255, 0, 127, 0.05));
            border: 2px dashed var(--border-color);
            border-radius: 16px;
            height: 350px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 20px;
        }

        .network-dots {
            display: flex;
            gap: 15px;
            margin-top: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .network-dot-tag {
            background: var(--card-bg);
            border: 1px solid var(--neon-blue);
            color: #fff;
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
        }

        /* 客户案例中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: scale(1.02);
            border-color: var(--neon-pink);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            background: #232c3f;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-info {
            padding: 25px;
        }

        .case-tag {
            font-size: 0.75rem;
            color: var(--neon-blue);
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
            display: block;
        }

        .case-info h3 {
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 10px;
        }

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

        /* 对比评测 */
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            background: var(--card-bg);
        }

        table.comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        table.comparison-table th, table.comparison-table td {
            padding: 20px 25px;
            border-bottom: 1px solid var(--border-color);
        }

        table.comparison-table th {
            background: rgba(255, 255, 255, 0.02);
            color: #fff;
            font-weight: 600;
        }

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

        .comp-highlight {
            color: var(--neon-green);
            font-weight: bold;
        }

        .badge-star {
            display: inline-block;
            background: rgba(255, 0, 127, 0.1);
            color: var(--neon-pink);
            border: 1px solid var(--neon-pink);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: bold;
            font-size: 0.85rem;
        }

        /* 智能需求匹配与表单 */
        .form-wrap {
            max-width: 800px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 16px;
            position: relative;
            box-shadow: 0 10px 40px rgba(0,0,0,0.5);
        }

        .form-wrap::after {
            content: '';
            position: absolute;
            inset: -2px;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
            z-index: -1;
            border-radius: 18px;
            opacity: 0.3;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .form-group label {
            font-size: 0.85rem;
            color: var(--text-main);
            font-weight: 600;
        }

        .form-control {
            background: rgba(8, 11, 17, 0.6);
            border: 1px solid var(--border-color);
            color: #fff;
            padding: 12px 16px;
            border-radius: 8px;
            outline: none;
            font-family: inherit;
            transition: all 0.3s;
        }

        .form-control:focus {
            border-color: var(--neon-blue);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        .submit-btn {
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
            color: #fff;
            border: none;
            padding: 15px 30px;
            font-size: 1rem;
            font-weight: bold;
            border-radius: 8px;
            cursor: pointer;
            width: 100%;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            transition: all 0.3s;
        }

        .submit-btn:hover {
            box-shadow: 0 0 30px rgba(255, 0, 127, 0.6);
            transform: translateY(-2px);
        }

        /* Token 比价 */
        .token-info {
            margin-top: 30px;
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
        }

        /* 人工智能培训 & 职业技术培训 */
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .training-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 16px;
            position: relative;
        }

        .training-card h3 {
            font-size: 1.5rem;
            color: #fff;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .training-card h3::before {
            content: "🎓";
            font-size: 1.8rem;
        }

        .course-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .course-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border-color);
            padding: 15px 20px;
            border-radius: 8px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .course-name {
            font-weight: bold;
            color: var(--neon-blue);
        }

        .course-cert {
            font-size: 0.75rem;
            background: rgba(57, 255, 20, 0.1);
            color: var(--neon-green);
            padding: 2px 8px;
            border-radius: 4px;
            border: 1px solid var(--neon-green);
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-main);
            margin-bottom: 20px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
        }

        .user-avatar-placeholder {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #fff;
            font-size: 0.9rem;
        }

        .user-info h4 {
            font-size: 0.9rem;
            color: #fff;
        }

        .user-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* FAQ 折叠面板 */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

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

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

        .faq-question::after {
            content: "+";
            font-size: 1.5rem;
            color: var(--neon-blue);
            transition: transform 0.3s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background: rgba(0, 0, 0, 0.1);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 20px 25px;
            border-top: 1px solid var(--border-color);
        }

        /* 常见问题自助排查 & 百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .wiki-card, .troubleshoot-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 12px;
        }

        .wiki-list, .troubleshoot-list {
            list-style: none;
            padding: 0;
        }

        .wiki-list li, .troubleshoot-list li {
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

        .wiki-list li:last-child, .troubleshoot-list li:last-child {
            border-bottom: none;
        }

        .wiki-term {
            color: var(--neon-pink);
            font-weight: bold;
            margin-bottom: 5px;
            display: block;
        }

        .troubleshoot-q {
            color: var(--neon-blue);
            font-weight: bold;
            margin-bottom: 5px;
            display: block;
        }

        /* 行业资讯 & 最新文章 */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 25px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.3s;
        }

        .news-card:hover {
            border-color: var(--neon-blue);
            transform: translateX(5px);
        }

        .news-title {
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .news-link {
            color: var(--neon-blue);
            font-weight: bold;
        }

        /* 联系我们 */
        .contact-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }

        .contact-item {
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }

        .contact-icon {
            font-size: 1.5rem;
            color: var(--neon-blue);
        }

        .contact-details h4 {
            color: #fff;
            margin-bottom: 5px;
            font-size: 1.1rem;
        }

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

        .qrcode-box {
            margin-top: 20px;
            display: flex;
            align-items: center;
            gap: 20px;
            background: rgba(255, 255, 255, 0.02);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .qrcode-box img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            border: 2px solid var(--neon-blue);
        }

        /* 友情链接与页脚 */
        footer {
            background: #05070b;
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-color);
        }

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

        .footer-brand h3 {
            margin-bottom: 15px;
            color: #fff;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            max-width: 400px;
            margin-bottom: 20px;
        }

        .footer-links h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 1rem;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
        }

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .friend-links-area {
            border-top: 1px solid var(--border-color);
            padding-top: 30px;
            margin-top: 30px;
        }

        .friend-links-area h5 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 0.9rem;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-list a {
            font-size: 0.85rem;
            color: var(--text-muted);
            background: rgba(255,255,255,0.02);
            padding: 5px 10px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        .friend-links-list a:hover {
            border-color: var(--neon-blue);
            color: var(--neon-blue);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 浮动客服 */
        .floating-contact {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
            cursor: pointer;
            position: relative;
            transition: all 0.3s;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .qr-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            display: none;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.5);
            width: 140px;
        }

        .qr-popover img {
            width: 100px;
            height: 100px;
            border-radius: 4px;
        }

        .qr-popover span {
            font-size: 0.75rem;
            color: #fff;
            text-align: center;
        }

        .float-btn:hover .qr-popover {
            display: flex;
        }

        /* 动效 */
        @keyframes textShimmer {
            0% { background-position: 0% 50%; }
            100% { background-position: 200% 50%; }
        }

        /* 响应式媒体查询 */
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-wrap, .network-wrap, .training-grid, .troubleshoot-grid, .contact-wrap {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .service-grid, .cases-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            h1.hero-title {
                font-size: 2.2rem;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-dark);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .service-grid, .cases-grid, .reviews-grid, .news-list, .process-steps {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
        }