:root {
            --primary: #E60012;
            --primary-hover: #B8000E;
            --primary-light: #FFF0F1;
            --dark: #1A1A1A;
            --gray-dark: #333333;
            --gray-light: #F8F9FA;
            --border-color: #EAEAEA;
            --text-muted: #666666;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 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(--gray-dark);
            background-color: #FFFFFF;
        }

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

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--dark);
            font-weight: 700;
            font-size: 1.2rem;
        }

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

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

        .nav-menu a {
            color: var(--gray-dark);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            padding: 5px 10px;
            border-radius: 4px;
        }

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

        .nav-btn {
            background: var(--primary);
            color: #fff !important;
            padding: 8px 18px !important;
            border-radius: 20px !important;
            font-weight: 600 !important;
        }

        .nav-btn:hover {
            background: var(--primary-hover) !important;
            color: #fff !important;
        }

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

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

        /* 页面主要区域间距 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* 艳红风格的首屏 (无图片) */
        .hero {
            padding-top: 150px;
            padding-bottom: 100px;
            background: linear-gradient(135deg, #FFF5F5 0%, #FFE5E6 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
            border-bottom: none;
        }

        .hero::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(230,0,18,0.08) 0%, transparent 70%);
            top: -50px;
            right: -50px;
        }

        .hero::after {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(230,0,18,0.05) 0%, transparent 70%);
            bottom: -100px;
            left: -100px;
        }

        .hero h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.3;
            font-weight: 800;
        }

        .hero h1 span {
            color: var(--primary);
            position: relative;
            display: inline-block;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--gray-dark);
            max-width: 800px;
            margin: 0 auto 35px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 15px rgba(230, 0, 18, 0.3);
        }

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

        .btn-secondary {
            background: #fff;
            color: var(--dark);
            border: 1px solid var(--border-color);
        }

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

        /* 模块标题 */
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2rem;
            color: var(--dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
            padding-bottom: 10px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--primary);
        }

        .section-title p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 8px;
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(230,0,18,0.05);
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--gray-dark);
            font-weight: 600;
        }

        /* 关于我们与软件介绍 */
        .about-content {
            display: flex;
            gap: 50px;
            align-items: center;
            flex-wrap: wrap;
        }

        .about-text {
            flex: 1 1 500px;
        }

        .about-text p {
            margin-bottom: 20px;
            font-size: 1rem;
            color: var(--gray-dark);
        }

        .about-features {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 25px;
        }

        .about-features li {
            position: relative;
            padding-left: 25px;
            font-size: 0.95rem;
            font-weight: 500;
        }

        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        .software-intro {
            background: var(--gray-light);
            border-radius: 12px;
            padding: 40px;
            border-left: 4px solid var(--primary);
            margin-top: 30px;
        }

        /* 全平台AIGC服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border-color: var(--primary);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .service-icon svg {
            width: 25px;
            height: 25px;
            fill: var(--primary);
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--dark);
        }

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

        /* 制作流程 & 时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 2px;
            background: var(--border-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -1px;
        }

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

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 16px;
            height: 16px;
            right: -8px;
            background-color: white;
            border: 3px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }

        .left {
            left: 0;
            text-align: right;
        }

        .right {
            left: 50%;
        }

        .right::after {
            left: -8px;
        }

        .timeline-content {
            padding: 20px;
            background-color: var(--gray-light);
            position: relative;
            border-radius: 6px;
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 8px;
        }

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

        .comparison-table th, .comparison-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .highlight-col {
            background: var(--primary-light);
            font-weight: 600;
        }

        .badge {
            background: var(--primary);
            color: #fff;
            padding: 2px 8px;
            border-radius: 10px;
            font-size: 0.75rem;
        }

        /* 对比评测核心得分 */
        .rating-box {
            background: var(--primary-light);
            border: 2px solid var(--primary);
            border-radius: 8px;
            padding: 25px;
            text-align: center;
            margin-bottom: 40px;
            max-width: 400px;
            margin-left: auto;
            margin-right: auto;
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
        }

        /* 全行业解决方案 & 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }

        .case-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }

        .case-img-container {
            width: 100%;
            background: var(--gray-light);
            aspect-ratio: 16/9;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .case-info {
            padding: 20px;
        }

        .case-info h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--dark);
        }

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

        /* 职业培训 & AI培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .training-card {
            background: #fff;
            border-top: 4px solid var(--primary);
            border-left: 1px solid var(--border-color);
            border-right: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            border-radius: 0 0 8px 8px;
            padding: 30px;
            transition: var(--transition);
        }

        .training-card:hover {
            box-shadow: 0 8px 25px rgba(0,0,0,0.05);
        }

        .training-card h3 {
            font-size: 1.2rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .training-card ul {
            list-style: none;
            padding-left: 0;
        }

        .training-card li {
            padding: 6px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 0.9rem;
        }

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

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 6px;
            margin-bottom: 15px;
            overflow: hidden;
            background: #fff;
        }

        .faq-question {
            padding: 18px 20px;
            background: var(--gray-light);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            user-select: none;
            transition: var(--transition);
        }

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

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: #fff;
            border-top: 0 solid var(--border-color);
        }

        .faq-item.active .faq-answer {
            padding: 18px 20px;
            max-height: 500px;
            border-top: 1px solid var(--border-color);
        }

        .faq-icon::after {
            content: '+';
            font-size: 1.2rem;
            font-weight: bold;
        }

        .faq-item.active .faq-icon::after {
            content: '−';
        }

        /* 网站术语百科 & 自助排查 */
        .terms-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .term-card {
            background: var(--gray-light);
            padding: 20px;
            border-radius: 6px;
            border-left: 3px solid var(--primary);
        }

        .term-card h4 {
            margin-bottom: 8px;
            color: var(--dark);
        }

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

        /* 客户评论卡片 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }

        .review-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 25px;
            position: relative;
        }

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

        .review-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .review-author h4 {
            font-size: 0.95rem;
            color: var(--dark);
        }

        .review-author p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .review-content {
            font-size: 0.95rem;
            color: var(--gray-dark);
            line-height: 1.6;
        }

        /* 行业资讯 / 知识库 */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .news-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 20px;
            transition: var(--transition);
        }

        .news-item:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .news-item a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 600;
            display: block;
            margin-bottom: 10px;
            transition: var(--transition);
        }

        .news-item a:hover {
            color: var(--primary);
        }

        /* 智能需求匹配与联系我们表单 */
        .contact-section-inner {
            display: flex;
            gap: 50px;
            flex-wrap: wrap;
        }

        .contact-info {
            flex: 1 1 400px;
        }

        .contact-form-box {
            flex: 1 1 500px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 40px 30px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.02);
        }

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

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

        .form-control {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230,0,18,0.1);
        }

        .btn-submit {
            width: 100%;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-submit:hover {
            background: var(--primary-hover);
        }

        .contact-details {
            margin-top: 30px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .contact-item-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .qrcode-box {
            margin-top: 30px;
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

        .qrcode-card {
            text-align: center;
        }

        .qrcode-card img {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 5px;
            margin-bottom: 8px;
        }

        .qrcode-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 友情链接与页脚 */
        footer {
            background: var(--dark);
            color: #ccc;
            padding: 60px 0 20px;
            border-top: none;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            height: 45px;
            margin-bottom: 20px;
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.1rem;
            position: relative;
        }

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

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

        .footer-col a {
            color: #aaa;
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary);
        }

        .friend-links {
            border-top: 1px solid #333;
            padding-top: 20px;
            margin-bottom: 20px;
            font-size: 0.85rem;
        }

        .friend-links a {
            color: #888;
            margin-right: 15px;
            text-decoration: none;
            display: inline-block;
        }

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

        .footer-bottom {
            border-top: 1px solid #333;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            font-size: 0.85rem;
        }

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

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

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

        .float-btn:hover svg {
            fill: #fff;
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: var(--primary);
            transition: var(--transition);
        }

        .qr-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 15px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 160px;
        }

        .qr-popover img {
            width: 130px;
            height: 130px;
        }

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

        /* 响应式调整 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item::after {
                left: 23px;
            }
            .left {
                text-align: left;
            }
            .right {
                left: 0;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-top: 1px solid var(--border-color);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            section {
                padding: 60px 0;
            }
        }