:root {
            --primary: #4facfe;
            --secondary: #00f2fe;
            --accent: #f5576c;
            --dark: #0f172a;
            --dark-light: #1e293b;
            --light: #f8fafc;
            --text-main: #334155;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --neon-blue: rgba(79, 172, 254, 0.15);
            --neon-pink: rgba(245, 87, 108, 0.1);
        }

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

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

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

        /* 统一外层居中容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 霓虹亮彩风装饰元素（浅色背景） */
        .bg-glow {
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
            filter: blur(80px);
            opacity: 0.12;
            pointer-events: none;
            z-index: 0;
        }

        /* 导航栏 */
        header {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 20px -10px rgba(0, 0, 0, 0.05);
        }

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

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

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

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

        .nav-menu a {
            text-decoration: none;
            color: var(--text-main);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-menu a:hover {
            color: var(--primary);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff !important;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 13px;
            box-shadow: 0 4px 15px var(--neon-blue);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4);
        }

        .menu-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-main);
        }

        /* Hero首屏 - 严禁出现图片 */
        .hero-section {
            padding: 160px 0 100px 0;
            position: relative;
            background: radial-gradient(120% 120% at 50% 0%, #ffffff 50%, rgba(79, 172, 254, 0.05) 100%);
            overflow: hidden;
            text-align: center;
        }

        .hero-content {
            position: relative;
            z-index: 10;
        }

        .badge-neon {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(79, 172, 254, 0.08);
            border: 1px solid rgba(79, 172, 254, 0.3);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
            box-shadow: 0 2px 10px var(--neon-blue);
        }

        h1.hero-title {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 24px;
            background: linear-gradient(to right, var(--dark), #2563eb);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 750px;
            margin: 0 auto 40px auto;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 8px 25px var(--neon-blue);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(79, 172, 254, 0.4);
        }

        .btn-secondary {
            background: #fff;
            color: var(--dark);
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0,0,0,0.03);
        }

        .btn-secondary:hover {
            background: var(--light);
            transform: translateY(-2px);
        }

        /* 首页核心指标卡片 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .metric-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px var(--neon-blue);
            border-color: var(--primary);
        }

        .metric-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 块级标题 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }

        .section-header h2 {
            font-size: 32px;
            color: var(--dark);
            font-weight: 700;
            margin-bottom: 15px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 通用区块间距 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid #edf2f7;
            position: relative;
        }

        .bg-white-pure {
            background-color: #ffffff;
        }

        /* 关于我们与软件介绍 */
        .about-wrap {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 20px;
        }

        .about-content p {
            color: var(--text-main);
            margin-bottom: 20px;
            font-size: 15px;
            text-align: justify;
        }

        .about-features {
            list-style: none;
        }

        .about-features li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            font-size: 14px;
            color: var(--text-main);
        }

        .about-features li::before {
            content: "✓";
            color: var(--primary);
            font-weight: bold;
            margin-right: 10px;
            font-size: 16px;
        }

        /* 平台聚合图文展示 */
        .platform-box {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            padding: 40px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.03);
        }

        .platform-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .platform-tag {
            background: #f1f5f9;
            color: var(--dark-light);
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--border-color);
        }

        /* 服务体系卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 12px;
            transition: all 0.3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(79, 172, 254, 0.1);
            border-color: var(--primary);
        }

        .service-icon {
            font-size: 32px;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 12px;
        }

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

        /* 流程步骤 */
        .steps-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

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

        .step-num {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px auto;
            font-size: 18px;
            box-shadow: 0 6px 15px var(--neon-blue);
        }

        .step-item h4 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 13px;
        }

        /* 对比评测表格 */
        .comparison-table-wrap {
            overflow-x: auto;
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 5px 25px rgba(0,0,0,0.02);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        .comparison-table th {
            background: #f8fafc;
            color: var(--dark);
            font-weight: 600;
        }

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

        .table-highlight {
            background: rgba(79, 172, 254, 0.03);
            font-weight: 600;
            color: var(--primary);
        }

        /* 案例展示区 */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .gallery-item {
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }

        .gallery-item:hover {
            transform: scale(1.02);
        }

        .gallery-img-wrapper {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #f1f5f9;
        }

        .gallery-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .gallery-item:hover .gallery-img-wrapper img {
            transform: scale(1.08);
        }

        .gallery-info {
            padding: 16px;
        }

        .gallery-info h4 {
            font-size: 15px;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .gallery-info p {
            color: var(--text-muted);
            font-size: 12px;
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .training-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 20px 15px;
            text-align: center;
            transition: all 0.3s;
        }

        .training-card:hover {
            border-color: var(--accent);
            box-shadow: 0 5px 20px var(--neon-pink);
            transform: translateY(-3px);
        }

        .training-card h4 {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .training-card span {
            font-size: 12px;
            color: var(--text-muted);
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 12px;
        }

        /* 评论模块 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.01);
            position: relative;
        }

        .review-stars {
            color: #fbbf24;
            font-size: 14px;
            margin-bottom: 12px;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-main);
            margin-bottom: 15px;
            font-style: italic;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 12px;
        }

        .author-info h5 {
            font-size: 13px;
            color: var(--dark);
        }

        .author-info span {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* FAQ 折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            background: #fff;
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item:hover {
            border-color: var(--primary);
        }

        .faq-question {
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: "+";
            font-size: 20px;
            color: var(--text-muted);
            transition: transform 0.3s;
        }

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

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 14px;
            background: #fafbfc;
        }

        .faq-item.active .faq-answer {
            padding: 16px 24px;
            max-height: 200px;
            border-top: 1px solid var(--border-color);
        }

        /* 表单与需求匹配 */
        .contact-section-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

        .form-wrap {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.02);
        }

        .form-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 24px;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            color: var(--dark);
            background-color: #fafbfc;
            transition: all 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #fff;
            box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.1);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .contact-info-panel {
            background: var(--dark);
            color: #fff;
            border-radius: 16px;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            overflow: hidden;
        }

        .contact-info-panel h3 {
            font-size: 24px;
            margin-bottom: 24px;
        }

        .contact-info-list {
            list-style: none;
        }

        .contact-info-list li {
            margin-bottom: 20px;
            display: flex;
            align-items: flex-start;
            font-size: 14px;
        }

        .contact-info-list li span.label {
            font-weight: bold;
            color: var(--primary);
            width: 80px;
            flex-shrink: 0;
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }

        .qr-box {
            text-align: center;
            background: rgba(255, 255, 255, 0.05);
            padding: 12px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .qr-box img {
            width: 100px;
            height: 100px;
            object-fit: cover;
            border-radius: 4px;
            background: #fff;
        }

        .qr-box p {
            font-size: 11px;
            margin-top: 8px;
            color: #94a3b8;
        }

        /* 帮助中心自助排查与术语 */
        .troubleshooting-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .trouble-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
        }

        .trouble-card h4 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .trouble-card h4::before {
            content: "✦";
            color: var(--accent);
        }

        .trouble-card p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 行业资讯 & 最新文章 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .article-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.3s;
        }

        .article-card:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 20px var(--neon-blue);
        }

        .article-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 10px;
            text-decoration: none;
            display: block;
        }

        .article-title:hover {
            color: var(--primary);
        }

        .article-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .article-meta {
            font-size: 11px;
            color: #94a3b8;
            display: flex;
            justify-content: space-between;
        }

        /* 页脚 */
        footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

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

        .footer-logo img {
            height: 35px;
            margin-bottom: 15px;
        }

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

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

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

        .footer-links ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-links ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

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

        .friendly-links a {
            color: #64748b;
            text-decoration: none;
            font-size: 12px;
        }

        .friendly-links a:hover {
            color: #94a3b8;
        }

        .ai-page-home-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }

        /* 浮动客服入口 */
        .float-service {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: all 0.3s;
        }

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

        .float-btn svg {
            width: 20px;
            height: 20px;
            fill: currentColor;
        }

        .float-qr-hover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
        }

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

        .float-qr-hover p {
            color: var(--dark);
            font-size: 11px;
            margin-top: 5px;
            white-space: nowrap;
        }

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

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .contact-section-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: block;
            }

            h1.hero-title {
                font-size: 32px;
            }

            .about-wrap {
                grid-template-columns: 1fr;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .steps-flow {
                grid-template-columns: 1fr;
            }

            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gallery-grid {
                grid-template-columns: 1fr;
            }

            .troubleshooting-grid {
                grid-template-columns: 1fr;
            }

            .articles-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }