:root {
            --neon-cyan: #00f2fe;
            --neon-magenta: #ff007f;
            --neon-purple: #9b51e0;
            --bg-dark: #07070c;
            --card-bg: rgba(15, 15, 27, 0.75);
            --border-color: rgba(0, 242, 254, 0.15);
            --text-light: #e0e0ea;
            --text-muted: #8a8ab0;
            --gradient-primary: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
            --gradient-accent: linear-gradient(135deg, var(--neon-magenta), var(--neon-purple));
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-light);
        }

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

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

        /* 霓虹发光文字与特效 */
        .neon-text-cyan {
            color: var(--neon-cyan);
            text-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
        }
        .neon-text-magenta {
            color: var(--neon-magenta);
            text-shadow: 0 0 10px rgba(255, 0, 127, 0.5);
        }

        /* 按钮样式 */
        .btn-neon {
            display: inline-block;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            text-decoration: none;
            text-align: center;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }
        .btn-cyan {
            background: var(--gradient-primary);
            color: #000;
            box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
        }
        .btn-cyan:hover {
            box-shadow: 0 0 25px rgba(0, 242, 254, 0.8);
            transform: translateY(-2px);
        }
        .btn-magenta {
            background: var(--gradient-accent);
            color: #fff;
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
        }
        .btn-magenta:hover {
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.8);
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(7, 7, 12, 0.85);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-wrap img {
            height: 40px;
            display: block;
        }
        .logo-wrap span {
            font-size: 1.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }
        .nav-menu a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s;
        }
        .nav-menu a:hover {
            color: var(--neon-cyan);
        }
        .nav-btn {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 25px;
            height: 3px;
            background: var(--text-light);
            transition: 0.3s;
        }

        /* 首屏 Hero (无图片限制) */
        .hero {
            padding: 160px 0 100px 0;
            position: relative;
            background: radial-gradient(circle at 50% 30%, rgba(155, 81, 224, 0.15), transparent 70%);
            text-align: center;
        }
        .hero h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(to right, #fff, var(--neon-cyan), var(--neon-magenta));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }
        .hero-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-tag {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* 板块公用 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            letter-spacing: 1px;
        }
        .section-title p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
        }
        .about-text p {
            margin-bottom: 15px;
            color: var(--text-muted);
        }
        .about-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        .metric-card h4 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .metric-card p {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* 服务能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 15px;
            transition: all 0.3s ease;
        }
        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--neon-magenta);
            box-shadow: 0 10px 25px rgba(255, 0, 127, 0.2);
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: #fff;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 技术模型聚合滚动条样式 */
        .tech-logos {
            background: rgba(255, 255, 255, 0.02);
            padding: 40px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
            position: relative;
        }
        .tech-wrapper {
            display: flex;
            gap: 40px;
            width: max-content;
            animation: scroll 40s linear infinite;
        }
        .tech-item {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-muted);
            white-space: nowrap;
            letter-spacing: 1px;
            transition: color 0.3s;
        }
        .tech-item:hover {
            color: var(--neon-cyan);
        }
        @keyframes scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* 流程步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
        }
        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 15px;
            position: relative;
        }
        .step-num {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 2rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.05);
        }
        .step-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--neon-cyan);
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 表格与对比评测 */
        .table-responsive {
            overflow-x: auto;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 15px;
            padding: 20px;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        th, td {
            padding: 15px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.95rem;
        }
        th {
            color: var(--neon-cyan);
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .highlight-col {
            background: rgba(0, 242, 254, 0.05);
            font-weight: bold;
        }

        /* 对比总结看板 */
        .score-board {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: linear-gradient(135deg, rgba(155, 81, 224, 0.2), rgba(0, 242, 254, 0.1));
            border: 1px solid var(--neon-cyan);
            border-radius: 15px;
            padding: 30px;
            margin-top: 30px;
        }
        .score-left h4 {
            font-size: 1.5rem;
            margin-bottom: 10px;
        }
        .score-left p {
            color: var(--text-muted);
        }
        .score-right {
            text-align: right;
        }
        .score-num {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--neon-magenta);
            line-height: 1;
        }
        .stars {
            color: #ffaa00;
            font-size: 1.2rem;
            margin-top: 5px;
        }

        /* 案例展示区 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .case-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 15px;
            overflow: hidden;
            transition: 0.3s;
        }
        .case-card:hover {
            transform: translateY(-5px);
            border-color: var(--neon-cyan);
        }
        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #111;
        }
        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-body {
            padding: 25px;
        }
        .case-tag {
            display: inline-block;
            background: rgba(0, 242, 254, 0.1);
            color: var(--neon-cyan);
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 10px;
            margin-bottom: 15px;
        }
        .case-body h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .case-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .train-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .train-item {
            background: var(--card-bg);
            border-left: 4px solid var(--neon-magenta);
            padding: 20px;
            border-radius: 0 12px 12px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.03);
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
            border-right: 1px solid rgba(255, 255, 255, 0.03);
        }
        .train-item h3 {
            font-size: 1.1rem;
            margin-bottom: 5px;
            color: #fff;
        }
        .train-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            overflow: hidden;
            transition: 0.3s;
        }
        .faq-header {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
        .faq-header h3 {
            font-size: 1.05rem;
            font-weight: 600;
        }
        .faq-icon {
            font-size: 1.2rem;
            color: var(--neon-cyan);
            transition: transform 0.3s;
        }
        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(0, 0, 0, 0.2);
        }
        .faq-content {
            padding: 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item.active .faq-body {
            max-height: 300px; /* 足够容纳文本的高度 */
        }

        /* 用户评论 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }
        .testi-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 15px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .testi-text {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 20px;
            font-style: italic;
        }
        .testi-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .testi-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #000;
        }
        .testi-info h4 {
            font-size: 0.95rem;
            margin-bottom: 2px;
        }
        .testi-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 自助排查与术语百科 */
        .info-tab-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .troubleshoot-box, .wiki-box {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 15px;
            padding: 30px;
        }
        .troubleshoot-box h3, .wiki-box h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--neon-cyan);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding-bottom: 10px;
        }
        .troubleshoot-list, .wiki-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .troubleshoot-item h4, .wiki-item h4 {
            font-size: 1rem;
            margin-bottom: 5px;
            color: #fff;
        }
        .troubleshoot-item p, .wiki-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 表单与需求匹配 */
        .form-section {
            background: radial-gradient(circle at bottom right, rgba(255, 0, 127, 0.08), transparent 60%);
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }
        .form-intro h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
        }
        .form-intro p {
            color: var(--text-muted);
            margin-bottom: 25px;
        }
        .form-features {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .form-feat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }
        .form-feat-item span {
            color: var(--neon-cyan);
        }
        .main-form {
            background: rgba(10, 10, 18, 0.9);
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .form-control {
            width: 100%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 12px 15px;
            border-radius: 8px;
            color: #fff;
            font-size: 0.95rem;
            transition: 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--neon-cyan);
            background: rgba(255, 255, 255, 0.08);
        }
        textarea.form-control {
            height: 100px;
            resize: none;
        }

        /* 资讯与知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .news-header {
            margin-bottom: 15px;
        }
        .news-tag {
            font-size: 0.75rem;
            background: rgba(155, 81, 224, 0.2);
            color: var(--neon-purple);
            padding: 3px 8px;
            border-radius: 5px;
            margin-bottom: 10px;
            display: inline-block;
        }
        .news-card h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .news-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .news-footer {
            margin-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .news-link {
            color: var(--neon-cyan);
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: bold;
        }
        .news-link:hover {
            text-decoration: underline;
        }

        /* 合作联系与加盟代理 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }
        .contact-info h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
        }
        .contact-info p {
            color: var(--text-muted);
            margin-bottom: 30px;
        }
        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 40px;
        }
        .detail-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .detail-item span.icon {
            width: 40px;
            height: 40px;
            background: rgba(0, 242, 254, 0.1);
            color: var(--neon-cyan);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .qrcode-wrap {
            display: flex;
            gap: 30px;
            background: rgba(255, 255, 255, 0.02);
            padding: 25px;
            border-radius: 15px;
            border: 1px solid var(--border-color);
        }
        .qrcode-box {
            text-align: center;
        }
        .qrcode-box img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            margin-bottom: 8px;
            border: 3px solid rgba(255, 255, 255, 0.1);
        }
        .qrcode-box p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0;
        }

        /* 页脚与友情链接 */
        footer {
            background: #030306;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px 0;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            margin-bottom: 20px;
        }
        .footer-logo img {
            height: 35px;
            margin-bottom: 10px;
        }
        .footer-links h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1rem;
        }
        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--neon-cyan);
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 10px;
        }
        .friend-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.85rem;
            transition: color 0.3s;
        }
        .friend-links a:hover {
            color: var(--neon-magenta);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* 浮动客服栏 */
        .floating-service {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .float-btn {
            width: 55px;
            height: 55px;
            border-radius: 50%;
            background: var(--gradient-primary);
            box-shadow: 0 4px 20px rgba(0, 242, 254, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-size: 1.2rem;
            cursor: pointer;
            transition: 0.3s;
            position: relative;
        }
        .float-btn:hover {
            transform: scale(1.1);
        }
        .float-popover {
            position: absolute;
            right: 70px;
            bottom: 0;
            background: var(--bg-dark);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            display: none;
            width: 220px;
            text-align: center;
        }
        .float-popover img {
            width: 150px;
            height: 150px;
            border-radius: 5px;
            margin-bottom: 10px;
        }
        .float-btn:hover .float-popover {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 992px) {
            .hero h1 { font-size: 2.2rem; }
            .about-grid, .training-grid, .info-tab-grid, .form-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #0a0a0f;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
            }
            .nav-menu.active {
                display: flex;
            }
            .hamburger {
                display: flex;
            }
        }