/* 艳红热烈风 主题配色设计 */
        :root {
            --primary: #D32F2F; /* 深红 */
            --primary-light: #FF5252; /* 亮红 */
            --primary-dark: #B71C1C; /* 极深红 */
            --secondary: #212121; /* 碳黑 */
            --bg-light: #FAFAFA; /* 浅灰底 */
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A; /* 深色文字 */
            --text-muted: #666666; /* 灰色辅助文字 */
            --border-color: #EEEEEE;
            --container-width: 1200px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        /* 基础重置与排版 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul {
            list-style: none;
        }
        h1, h2, h3, h4, h5, h6 {
            color: var(--secondary);
            font-weight: 700;
            line-height: 1.3;
        }

        /* 全局容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            width: 60px;
            height: 4px;
            background: var(--primary);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 15px auto 0;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 30px;
            transition: var(--transition);
            cursor: pointer;
            border: 2px solid transparent;
            text-align: center;
        }
        .btn-primary {
            background-color: var(--primary);
            color: var(--bg-white);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            color: var(--bg-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(211, 47, 47, 0.3);
        }
        .btn-outline {
            background-color: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: var(--bg-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(211, 47, 47, 0.2);
        }

        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
            z-index: 1000;
            transition: var(--transition);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-box {
            display: flex;
            align-items: center;
        }
        .ai-page-logo {
            max-height: 45px;
            width: auto;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-link {
            color: var(--text-dark);
            font-weight: 500;
            padding: 8px 12px;
            font-size: 0.95rem;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }
        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--secondary);
            transition: var(--transition);
        }

        /* 首屏 Hero (无背景图，纯色块与渐变) */
        .hero-section {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #FFF5F5 0%, #FFEBEB 50%, #FFF5F5 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 82, 82, 0.1) 0%, transparent 70%);
            top: -100px;
            right: -100px;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(211, 47, 47, 0.08) 0%, transparent 70%);
            bottom: -50px;
            left: -100px;
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            background-color: rgba(211, 47, 47, 0.1);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(211, 47, 47, 0.2);
        }
        .hero-title {
            font-size: 2.8rem;
            line-height: 1.25;
            color: var(--secondary);
            margin-bottom: 25px;
        }
        .hero-title span {
            color: var(--primary);
            position: relative;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .stats-section {
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            padding: 40px 0;
            margin-top: -40px;
            position: relative;
            z-index: 2;
            border-radius: 12px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.03);
            max-width: calc(var(--container-width) - 40px);
            margin-left: auto;
            margin-right: auto;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }
        .stat-card h3 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 5px;
        }
        .stat-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* 关于我们与平台介绍 */
        .about-section {
            background-color: var(--bg-white);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--secondary);
        }
        .about-text p {
            margin-bottom: 15px;
            color: var(--text-muted);
        }
        .about-list {
            margin: 25px 0;
        }
        .about-list-item {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-weight: 500;
        }
        .about-list-item::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }
        .about-image img {
            border-radius: 12px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border: 1px solid var(--border-color);
        }

        /* AIGC服务能力与一站式制作 */
        .services-section {
            background-color: var(--bg-light);
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 35px 25px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.05);
        }
        .service-card:hover::before {
            transform: scaleX(1);
        }
        .service-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .model-tags {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .model-tag {
            background-color: var(--bg-light);
            color: var(--text-dark);
            padding: 3px 8px;
            font-size: 0.75rem;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        /* 解决方案与服务网络 */
        .solutions-section {
            background-color: var(--bg-white);
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .solution-card {
            background-color: var(--bg-light);
            padding: 30px;
            border-radius: 12px;
            border-left: 5px solid var(--primary);
        }
        .solution-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
        }
        .solution-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 标准化AIGC流程及技术标准 */
        .process-section {
            background-color: var(--bg-light);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }
        .process-card {
            background: var(--bg-white);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-color);
            position: relative;
        }
        .process-num {
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: var(--bg-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 20px;
        }
        .process-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }
        .process-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 客户案例中心 */
        .cases-section {
            background-color: var(--bg-white);
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .case-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.08);
        }
        .case-img-container {
            position: relative;
            overflow: hidden;
        }
        .case-info {
            padding: 25px;
        }
        .case-info h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }
        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }
        .case-tag {
            display: inline-block;
            background-color: rgba(211, 47, 47, 0.05);
            color: var(--primary);
            padding: 4px 10px;
            font-size: 0.8rem;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 对比评测板块 */
        .evaluation-section {
            background-color: var(--bg-light);
        }
        .eval-container {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }
        .eval-summary {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: var(--bg-white);
            padding: 40px 30px;
            border-radius: 16px;
            text-align: center;
            box-shadow: 0 15px 35px rgba(211, 47, 47, 0.2);
        }
        .eval-summary h3 {
            color: var(--bg-white);
            font-size: 1.6rem;
            margin-bottom: 15px;
        }
        .eval-score {
            font-size: 4.5rem;
            font-weight: 800;
            line-height: 1;
            margin-bottom: 10px;
        }
        .eval-score span {
            font-size: 1.5rem;
            font-weight: 400;
        }
        .eval-stars {
            font-size: 1.5rem;
            color: #FFD700;
            margin-bottom: 15px;
        }
        .eval-table-wrapper {
            background: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow-x: auto;
        }
        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        .eval-table th, .eval-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }
        .eval-table th {
            background-color: rgba(0, 0, 0, 0.02);
            font-weight: 600;
        }
        .eval-table td strong {
            color: var(--primary);
        }

        /* Token比价与智能需求匹配 */
        .token-section {
            background-color: var(--bg-white);
        }
        .token-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .token-list {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            background: var(--bg-light);
        }
        .token-list h3 {
            margin-bottom: 20px;
            font-size: 1.4rem;
        }
        .token-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border-color);
        }
        .token-item:last-child {
            border-bottom: none;
        }
        .token-price {
            font-weight: 700;
            color: var(--primary);
        }

        /* 培训板块 */
        .training-section {
            background: var(--bg-light);
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .training-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            transition: var(--transition);
        }
        .training-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.05);
        }
        .training-cert {
            display: inline-block;
            background-color: rgba(211, 47, 47, 0.05);
            color: var(--primary);
            padding: 5px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 15px;
        }
        .training-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }
        .training-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }

        /* 帮助中心与FAQ */
        .faq-section {
            background-color: var(--bg-white);
        }
        .faq-container {
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--secondary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-muted);
            margin-top: 0;
            font-size: 0.95rem;
        }
        .faq-answer.show {
            max-height: 200px;
            margin-top: 15px;
            transition: max-height 0.3s ease-in;
        }
        .faq-icon {
            font-weight: bold;
            font-size: 1.2rem;
            transition: transform 0.3s;
            color: var(--primary);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* 客户评论卡片 */
        .reviews-section {
            background-color: var(--bg-light);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .review-card {
            background: var(--bg-white);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            position: relative;
        }
        .review-quote {
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .review-user-info h4 {
            font-size: 1rem;
            margin-bottom: 2px;
        }
        .review-user-info p {
            font-size: 0.8rem;
            color: var(--primary);
        }

        /* 术语百科与标签云 */
        .encyclopedia-section {
            background-color: var(--bg-white);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }
        .wiki-tag {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-dark);
            cursor: pointer;
            transition: var(--transition);
        }
        .wiki-tag:hover {
            background-color: var(--primary);
            color: var(--bg-white);
            border-color: var(--primary);
        }

        /* 行业资讯 / 知识库 */
        .news-section {
            background-color: var(--bg-light);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .news-card {
            background: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 25px;
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.03);
        }
        .news-date {
            font-size: 0.8rem;
            color: var(--primary);
            margin-bottom: 10px;
            display: block;
        }
        .news-card h3 {
            font-size: 1.15rem;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .news-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        /* 联系我们与加盟代理（表单） */
        .contact-section {
            background-color: var(--bg-white);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }
        .contact-info {
            padding-right: 20px;
        }
        .contact-info h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
        }
        .contact-info p {
            color: var(--text-muted);
            margin-bottom: 30px;
        }
        .info-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }
        .info-icon {
            width: 40px;
            height: 40px;
            background-color: rgba(211, 47, 47, 0.08);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }
        .contact-form-wrapper {
            background-color: var(--bg-light);
            padding: 40px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            outline: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
        }

        /* 友情链接与页脚 */
        footer {
            background-color: var(--secondary);
            color: #CCCCCC;
            padding: 60px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-col h3 {
            color: var(--bg-white);
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
        }
        .footer-col h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 30px;
            height: 2px;
            background-color: var(--primary);
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #AAAAAA;
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: var(--bg-white);
            padding-left: 5px;
        }
        .footer-qrcode {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .footer-qrcode img {
            width: 90px;
            height: 90px;
            border-radius: 6px;
            border: 2px solid var(--bg-white);
        }
        .friend-links {
            border-top: 1px solid #333333;
            padding-top: 25px;
            margin-bottom: 25px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
        }
        .friend-links span {
            color: #888888;
        }
        .friend-links a {
            color: #888888;
        }
        .friend-links a:hover {
            color: var(--primary-light);
        }
        .copyright {
            border-top: 1px solid #333333;
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #777777;
        }

        /* 浮动客服 */
        .floating-contact {
            position: fixed;
            right: 25px;
            bottom: 25px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: var(--bg-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }
        .float-btn:hover {
            background-color: var(--primary-dark);
            transform: scale(1.05);
        }
        .float-qrcode-card {
            position: absolute;
            right: 65px;
            bottom: 0;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 140px;
        }
        .float-qrcode-card img {
            width: 110px;
            height: 110px;
            margin-bottom: 8px;
        }
        .float-qrcode-card span {
            font-size: 0.75rem;
            color: var(--text-dark);
            display: block;
        }
        .float-btn:hover .float-qrcode-card {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid, .services-grid, .cases-grid, .training-grid, .reviews-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                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.show {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .hero-title {
                font-size: 2rem;
            }
            .about-grid, .solutions-grid, .eval-container, .token-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid, .services-grid, .cases-grid, .training-grid, .reviews-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }