/* 核心重置与基础变量 */
        :root {
            --neon-blue: #00f0ff;
            --neon-pink: #ff007f;
            --neon-purple: #9400d3;
            --dark-bg: #0f172a;
            --light-bg: #f8fafc;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --white: #ffffff;
            --neon-gradient: linear-gradient(135deg, var(--neon-blue) 0%, var(--neon-pink) 100%);
            --neon-border: 1px solid rgba(0, 240, 255, 0.3);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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;
            color: var(--text-dark);
            background-color: var(--light-bg);
        }

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

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

        /* 霓虹亮彩风 - 浅色基调下的发光文字与边框 */
        .neon-text-gradient {
            background: var(--neon-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
        }

        .neon-card {
            background: var(--white);
            border-radius: 16px;
            border: var(--neon-border);
            box-shadow: 0 10px 30px rgba(0, 240, 255, 0.05);
            transition: var(--transition);
        }

        .neon-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(255, 0, 127, 0.15), 0 0 15px rgba(0, 240, 255, 0.1);
            border-color: var(--neon-pink);
        }

        .btn-neon {
            background: var(--neon-gradient);
            color: var(--white);
            border: none;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.4);
        }

        .btn-neon:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.6);
        }

        .btn-outline {
            border: 2px solid var(--neon-blue);
            color: var(--text-dark);
            background: transparent;
            padding: 10px 26px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--neon-pink);
            color: var(--neon-pink);
        }

        /* 顶部导航 */
        header {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

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

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

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .nav-links a:hover {
            color: var(--neon-pink);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            transition: var(--transition);
        }

        /* Hero首屏 - 严禁图片 */
        .hero {
            padding: 160px 0 100px 0;
            background: radial-gradient(circle at top right, rgba(0, 240, 255, 0.08), transparent 40%),
                        radial-gradient(circle at bottom left, rgba(255, 0, 127, 0.08), transparent 40%),
                        var(--white);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
                              linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
            background-size: 30px 30px;
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-tag {
            background: rgba(0, 240, 255, 0.1);
            color: var(--neon-purple);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: bold;
            display: inline-block;
            margin-bottom: 20px;
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

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

        .hero-actions {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin-bottom: 50px;
        }

        /* 页面通用段落标题 */
        section {
            padding: 80px 0;
        }

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

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

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

        .stat-card {
            padding: 25px;
            text-align: center;
        }

        .stat-card h3 {
            font-size: 2.5rem;
            margin-bottom: 5px;
        }

        /* 关于我们与平台介绍 */
        .about-layout {
            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 {
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .about-feat-item {
            padding: 20px;
        }

        .about-feat-item h4 {
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        /* 服务与制作场景 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            padding: 30px;
        }

        .service-card .icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            margin-bottom: 15px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tags span {
            background: #f1f5f9;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 流程步骤 */
        .step-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-item {
            position: relative;
            padding: 20px;
            text-align: center;
        }

        .step-num {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--neon-gradient);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            margin: 0 auto 20px auto;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            background: var(--white);
            border-radius: 16px;
            padding: 20px;
            border: var(--neon-border);
            box-shadow: 0 10px 30px rgba(0, 240, 255, 0.05);
        }

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

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid #f1f5f9;
        }

        th {
            background-color: #f8fafc;
            font-weight: 700;
        }

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

        .rating-badge {
            background: linear-gradient(45deg, #f59e0b, #ef4444);
            color: var(--white);
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: bold;
            font-size: 0.9rem;
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .training-card {
            padding: 30px;
            border-top: 4px solid var(--neon-pink);
        }

        .training-card h3 {
            margin-bottom: 15px;
            font-size: 1.3rem;
        }

        .training-card ul {
            list-style: none;
            margin-bottom: 20px;
        }

        .training-card ul li {
            margin-bottom: 8px;
            position: relative;
            padding-left: 15px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        /* 案例展示 - 带宣传图 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .case-img-container {
            position: relative;
            width: 100%;
            height: 250px;
            overflow: hidden;
            background: #e2e8f0;
        }

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

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 25px;
            flex-grow: 1;
        }

        /* 智能需求匹配与表单 */
        .form-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }

        .form-info h3 {
            font-size: 2rem;
            margin-bottom: 20px;
        }

        .form-info p {
            color: var(--text-muted);
            margin-bottom: 30px;
        }

        .custom-form {
            background: var(--white);
            padding: 40px;
            border-radius: 16px;
            border: var(--neon-border);
            box-shadow: 0 15px 40px rgba(0, 240, 255, 0.08);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            outline: none;
            transition: var(--transition);
            background: #f8fafc;
        }

        .form-control:focus {
            border-color: var(--neon-blue);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
            background: var(--white);
        }

        /* 常见用户问题 FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border-radius: 8px;
            margin-bottom: 15px;
            border: var(--neon-border);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px;
            font-weight: 700;
            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-pink);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

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

        /* 用户评论 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .testimonial-card {
            padding: 25px;
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--neon-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: bold;
        }

        .user-details h4 {
            font-size: 0.95rem;
        }

        .user-details span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .testimonial-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-style: italic;
        }

        /* 标签云与辅助组件 */
        .tags-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 30px;
        }

        .tag-cloud-item {
            background: #f1f5f9;
            color: var(--text-dark);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .tag-cloud-item:hover {
            border-color: var(--neon-blue);
            color: var(--neon-blue);
            transform: scale(1.05);
        }

        /* 术语百科 & 自助排查 */
        .tab-section {
            background: var(--white);
            border-radius: 16px;
            padding: 40px;
            border: var(--neon-border);
        }

        .tab-headers {
            display: flex;
            gap: 20px;
            border-bottom: 2px solid #f1f5f9;
            margin-bottom: 30px;
        }

        .tab-btn {
            padding: 12px 24px;
            cursor: pointer;
            font-weight: 700;
            border: none;
            background: transparent;
            color: var(--text-muted);
            border-bottom: 2px solid transparent;
            margin-bottom: -2px;
            transition: var(--transition);
        }

        .tab-btn.active {
            color: var(--neon-blue);
            border-bottom-color: var(--neon-blue);
        }

        .tab-content {
            display: none;
        }

        .tab-content.active {
            display: block;
        }

        /* 行业资讯 & 友情链接 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .news-card {
            padding: 25px;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--neon-pink);
            margin-bottom: 10px;
            font-weight: bold;
        }

        .news-card h3 {
            font-size: 1.1rem;
            margin-bottom: 15px;
        }

        .news-card a {
            color: var(--neon-blue);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: bold;
        }

        .friend-links {
            background: #f1f5f9;
            padding: 20px;
            border-radius: 8px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

        .friend-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

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

        /* 页脚 */
        footer {
            background: var(--dark-bg);
            color: #94a3b8;
            padding: 60px 0 20px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--white);
            margin-bottom: 20px;
            font-size: 1rem;
        }

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

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

        .footer-col ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--neon-blue);
        }

        .qr-box {
            display: flex;
            gap: 15px;
            align-items: center;
        }

        .qr-box img {
            width: 80px;
            height: 80px;
            border-radius: 4px;
            background: var(--white);
            padding: 4px;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 侧边悬浮 */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--white);
            border: var(--neon-border);
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            background: var(--neon-blue);
            color: var(--white);
            transform: scale(1.1);
        }

        .float-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--white);
            padding: 15px;
            border-radius: 8px;
            border: var(--neon-border);
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 150px;
        }

        .float-qr img {
            width: 120px;
            height: 120px;
        }

        .float-btn:hover .float-qr {
            display: block;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .services-grid, .testimonial-grid, .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background: var(--white);
                flex-direction: column;
                padding: 40px 20px;
                transition: var(--transition);
                z-index: 999;
                border-top: 1px solid rgba(0,240,255,0.1);
            }
            .nav-links.active {
                left: 0;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .about-layout, .form-layout, .case-grid {
                grid-template-columns: 1fr;
            }
            .services-grid, .testimonial-grid, .training-grid, .step-timeline {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 2fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
        }