:root {
            --primary: #5c4df2;
            --primary-light: #eef0ff;
            --accent-cyan: #00cec9;
            --accent-pink: #fd79a8;
            --dark: #1a1a24;
            --text-main: #2d3748;
            --text-muted: #718096;
            --bg-base: #f8fafc;
            --bg-card: #ffffff;
            --laser-gradient: linear-gradient(135deg, rgba(92,77,242,0.1), rgba(0,206,201,0.1), rgba(253,121,168,0.1));
            --btn-gradient: linear-gradient(135deg, #5c4df2, #00cec9);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        a:hover {
            color: var(--accent-cyan);
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }

        /* 统一容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* 镭射质感背景修饰 */
        .laser-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(92, 77, 242, 0.15) 0%, rgba(0, 206, 201, 0.1) 50%, transparent 100%);
            filter: blur(80px);
            z-index: -1;
            pointer-events: none;
        }

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(92, 77, 242, 0.1);
        }

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

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

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

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

        .nav-link {
            font-size: 14px;
            color: var(--text-main);
            font-weight: 500;
        }

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

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

        .mobile-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 30px;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .btn-gradient {
            background: var(--btn-gradient);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(92, 77, 242, 0.3);
        }

        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(92, 77, 242, 0.5);
            color: #ffffff;
        }

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

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

        /* 模块统一样式 */
        section {
            padding: 80px 0;
            position: relative;
        }

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

        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--btn-gradient);
            border-radius: 2px;
        }

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

        /* Hero 区域 - 无图片 */
        .hero-section {
            background: var(--laser-gradient);
            padding: 120px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section .laser-glow {
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .hero-content {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            background: rgba(92, 77, 242, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 25px;
            border: 1px solid rgba(92, 77, 242, 0.2);
        }

        .hero-title {
            font-size: 46px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 25px;
        }

        .hero-title span {
            background: var(--btn-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-main);
            margin-bottom: 40px;
            line-height: 1.8;
        }

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

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border: 1px solid rgba(92, 77, 242, 0.08);
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-cyan);
            box-shadow: 0 15px 40px rgba(92, 77, 242, 0.12);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 关于我们 */
        .about-section {
            background: #ffffff;
        }

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

        .about-content h3 {
            font-size: 28px;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .about-features {
            margin-top: 30px;
        }

        .about-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 20px;
        }

        .feature-icon-wrapper {
            background: var(--primary-light);
            color: var(--primary);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .feature-text h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 5px;
        }

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

        /* 软件/平台介绍 */
        .intro-section {
            background: var(--bg-base);
        }

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

        .intro-card {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 40px 30px;
            border: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .intro-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border-color: rgba(92, 77, 242, 0.2);
        }

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

        .intro-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .intro-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 服务体系 (29个模型支持标签云) */
        .model-tags-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
            max-width: 1000px;
            margin-left: auto;
            margin-right: auto;
        }

        .model-tag {
            background: var(--bg-card);
            border: 1px solid rgba(92, 77, 242, 0.15);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0,0,0,0.03);
        }

        .model-tag:hover {
            background: var(--btn-gradient);
            color: #ffffff;
            border-color: transparent;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(92, 77, 242, 0.25);
        }

        /* 制作流程 & 标准化流程 (时间线样式) */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 4px;
            background-color: var(--primary-light);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
        }

        .timeline-item {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: white;
            border: 4px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
            transition: all 0.3s ease;
        }

        .left {
            left: 0;
        }

        .right {
            left: 50%;
        }

        .right::after {
            left: -10px;
        }

        .timeline-content {
            padding: 20px;
            background-color: var(--bg-card);
            position: relative;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            border: 1px solid rgba(0,0,0,0.03);
        }

        .timeline-content h3 {
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--primary);
        }

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

        .timeline-item:hover::after {
            background-color: var(--accent-cyan);
            transform: scale(1.2);
        }

        /* 全行业解决方案 & 服务网络 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .solution-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            transition: all 0.3s ease;
            border: 1px solid rgba(92, 77, 242, 0.05);
        }

        .solution-card:hover {
            transform: scale(1.03);
            border-color: var(--accent-pink);
            box-shadow: 0 10px 30px rgba(253, 121, 168, 0.1);
        }

        .solution-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 案例展示 (含图) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.04);
            border: 1px solid rgba(0,0,0,0.05);
        }

        .case-img-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

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

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

        .case-info {
            padding: 24px;
        }

        .case-tag {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .case-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 16px;
            box-shadow: 0 10px 35px rgba(0,0,0,0.05);
            background: var(--bg-card);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid #edf2f7;
            font-size: 14px;
        }

        th {
            background: var(--primary-light);
            color: var(--dark);
            font-weight: 700;
        }

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

        .highlight-col {
            background: rgba(92, 77, 242, 0.03);
            font-weight: 600;
            color: var(--primary);
        }

        .score-highlight {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
        }

        /* 培训板块 (横向卡片) */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
        }

        .training-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

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

        .training-body h4 {
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .training-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        /* 表单区域 */
        .form-section {
            background: var(--laser-gradient);
        }

        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
            background: #ffffff;
            padding: 40px;
            border-radius: 20px;
            box-shadow: 0 15px 40px rgba(0,0,0,0.1);
        }

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

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: all 0.3s ease;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(92, 77, 242, 0.15);
        }

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

        /* 评论模块 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.03);
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-main);
            font-style: italic;
            margin-bottom: 20px;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-avatar-placeholder {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .review-meta h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--dark);
        }

        .review-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

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

        .faq-item {
            background: var(--bg-card);
            border-radius: 10px;
            margin-bottom: 12px;
            border: 1px solid rgba(0,0,0,0.05);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            color: var(--dark);
            user-select: none;
            transition: background-color 0.3s ease;
        }

        .faq-question:hover {
            background-color: var(--primary-light);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding-bottom: 20px;
            padding-top: 10px;
        }

        .faq-icon {
            font-size: 18px;
            transition: transform 0.3s ease;
        }

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

        /* 术语百科 & 自助排查 */
        .terms-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .term-card {
            background: var(--bg-card);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid rgba(0,0,0,0.04);
        }

        .term-card h4 {
            font-size: 15px;
            color: var(--primary);
            margin-bottom: 8px;
        }

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

        /* 行业资讯 / 知识库 */
        .articles-list {
            margin-top: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .article-item {
            background: var(--bg-card);
            padding: 20px;
            border-radius: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border: 1px solid rgba(0,0,0,0.04);
            transition: all 0.3s ease;
        }

        .article-item:hover {
            transform: translateX(5px);
            border-color: var(--primary);
        }

        .article-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: #a0aec0;
            padding: 60px 0 30px 0;
            font-size: 14px;
        }

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

        .footer-col h4 {
            color: #ffffff;
            font-size: 16px;
            margin-bottom: 20px;
            position: relative;
        }

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

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

        .footer-links a {
            color: #a0aec0;
        }

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

        .footer-qr {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .footer-qr img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            background: #ffffff;
            padding: 5px;
        }

        .footer-bottom {
            border-top: 1px solid #2d3748;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .friend-links {
            margin-top: 20px;
            border-top: 1px solid #2d3748;
            padding-top: 20px;
            font-size: 12px;
        }

        .friend-links a {
            color: #718096;
            margin-right: 15px;
            display: inline-block;
        }

        .friend-links a:hover {
            color: #ffffff;
        }

        /* 悬浮客服面板 */
        .floating-contact {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #ffffff;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: all 0.3s ease;
        }

        .float-btn:hover {
            background: var(--primary);
            color: #ffffff;
            transform: scale(1.1);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .qr-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #ffffff;
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            display: none;
            text-align: center;
            width: 150px;
        }

        .qr-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }

        .qr-popover p {
            font-size: 12px;
            color: var(--dark);
            margin: 0;
        }

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

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 20px;
            }
            .about-grid, .training-grid {
                grid-template-columns: 1fr;
            }
            .solutions-grid, .cases-grid, .reviews-grid, .intro-features, .terms-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                border-bottom: 1px solid rgba(92, 77, 242, 0.1);
            }
            .nav-menu.active {
                display: flex;
            }
            .mobile-toggle {
                display: flex;
            }
            .hero-title {
                font-size: 32px;
            }
            .solutions-grid, .cases-grid, .reviews-grid, .intro-features, .terms-grid {
                grid-template-columns: 1fr;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item.right {
                left: 0;
            }
            .timeline-item::after {
                left: 21px;
                right: auto;
            }
            .timeline-item.right::after {
                left: 21px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }