:root {
            --primary: #e60012;
            --primary-hover: #b8000e;
            --secondary: #ffeb3b;
            --dark: #1a1a1a;
            --gray-dark: #2d2d2d;
            --gray-light: #f8f9fa;
            --text-dark: #212529;
            --text-muted: #6c757d;
            --white: #ffffff;
            --glow: 0 0 15px rgba(230, 0, 18, 0.4);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 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;
            color: var(--text-dark);
            background-color: var(--white);
        }

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

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

        /* 顶部导航 */
        header {
            background-color: var(--dark);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            border-bottom: 2px solid var(--primary);
        }

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

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

        .ai-page-logo {
            height: 45px;
            width: auto;
        }

        .brand-text {
            color: var(--white);
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .brand-text span {
            color: var(--primary);
        }

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

        .nav-menu a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            padding: 5px 10px;
            border-radius: 4px;
        }

        .nav-menu a:hover, 
        .nav-menu a.active {
            color: var(--secondary);
            background: rgba(230, 0, 18, 0.1);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--white);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* 首屏 Hero Area (无图片) */
        .hero {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #2d0003 0%, #120001 50%, #4a0005 100%);
            color: var(--white);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(230, 0, 18, 0.15) 0%, transparent 60%);
            animation: rotateBg 20s linear infinite;
            pointer-events: none;
        }

        @keyframes rotateBg {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .hero-tag {
            background-color: var(--primary);
            color: var(--white);
            padding: 6px 16px;
            font-size: 0.9rem;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 25px;
            font-weight: 600;
            letter-spacing: 1px;
            box-shadow: var(--glow);
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 25px;
            color: var(--white);
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }

        .hero h1 span {
            color: var(--secondary);
        }

        .hero-desc {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 40px;
            color: rgba(255, 255, 255, 0.8);
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 30px;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
            box-shadow: var(--glow);
        }

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

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

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

        /* 核心卖点微型看板 */
        .hero-features {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .hero-feat-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 12px;
            backdrop-filter: blur(5px);
        }

        .hero-feat-card h3 {
            font-size: 1.1rem;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .hero-feat-card p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* 模块统一样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid #eee;
        }

        .section-light {
            background-color: var(--white);
        }

        .section-gray {
            background-color: var(--gray-light);
        }

        .section-dark {
            background-color: var(--dark);
            color: var(--white);
        }

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 55px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            position: relative;
            display: inline-block;
            margin-bottom: 15px;
            color: inherit;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background-color: var(--primary);
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
        }

        .section-dark .section-header p {
            color: rgba(255,255,255,0.7);
        }

        /* 关于我们与平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .about-content p {
            margin-bottom: 15px;
            color: var(--text-dark);
            font-size: 1.05rem;
        }

        .about-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .metric-card {
            background: var(--white);
            padding: 25px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            border-top: 4px solid var(--primary);
            text-align: center;
        }

        .metric-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .metric-label {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* 全平台AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            border: 1px solid #eaeaea;
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background-color: var(--primary);
            transform: scaleX(0);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(230, 0, 18, 0.1);
            border-color: rgba(230, 0, 18, 0.2);
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.5;
        }

        /* 一站式AIGC制作与媒体展示 */
        .prod-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .media-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .media-box {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
        }

        .media-box img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .media-box img:hover {
            transform: scale(1.05);
        }

        /* 标签云与模型聚合 */
        .tags-wrapper {
            background-color: var(--gray-light);
            border-radius: 16px;
            padding: 40px;
            text-align: center;
        }

        .tags-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .tag-pill {
            background: var(--white);
            color: var(--text-dark);
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid #e0e0e0;
            transition: var(--transition);
        }

        .tag-pill:hover {
            background-color: var(--primary);
            color: var(--white);
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 标准化AIGC流程 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            background: var(--white);
            padding: 30px 20px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }

        .step-num {
            width: 50px;
            height: 50px;
            line-height: 50px;
            background-color: var(--primary);
            color: var(--white);
            border-radius: 50%;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 20px;
            box-shadow: var(--glow);
        }

        /* 对比评测 */
        .comparison-table-wrapper {
            overflow-x: auto;
            margin: 0 auto;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.05);
            background: var(--white);
        }

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

        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid #eee;
        }

        th {
            background-color: var(--primary);
            color: var(--white);
            font-weight: 600;
        }

        tr:nth-child(even) {
            background-color: #fff9f9;
        }

        .highlight-td {
            font-weight: 700;
            color: var(--primary);
            background-color: rgba(230, 0, 18, 0.05);
        }

        .rating-box {
            background: linear-gradient(135deg, var(--primary) 0%, #ff5722 100%);
            color: var(--white);
            padding: 30px;
            border-radius: 12px;
            text-align: center;
            margin-bottom: 40px;
        }

        .rating-num {
            font-size: 4rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1;
        }

        /* Token比价 */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .pricing-card {
            background: var(--white);
            border-radius: 16px;
            border: 2px solid #eee;
            padding: 40px 30px;
            text-align: center;
            transition: var(--transition);
        }

        .pricing-card.featured {
            border-color: var(--primary);
            position: relative;
            transform: scale(1.05);
        }

        .pricing-badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: var(--white);
            padding: 5px 15px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 20px;
            text-transform: uppercase;
        }

        .pricing-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .price span {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        .pricing-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }

        .pricing-features li {
            padding: 10px 0;
            border-bottom: 1px solid #f1f1f1;
            font-size: 0.95rem;
        }

        /* 培训中心 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .training-card {
            background: var(--white);
            border: 1px solid #eaeaea;
            border-radius: 8px;
            padding: 25px 15px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(230, 0, 18, 0.08);
        }

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

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

        /* FAQ折叠面板 */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid #eaeaea;
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-question {
            padding: 20px;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
            background-color: rgba(230, 0, 18, 0.02);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: #fafafa;
        }

        .faq-answer-content {
            padding: 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            border-top: 1px solid #f1f1f1;
        }

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--white);
            border: 1px solid #eee;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.02);
        }

        .review-content {
            font-style: italic;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .author-info h4 {
            font-size: 1rem;
            font-weight: 600;
        }

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

        /* 资讯与百科 */
        .articles-wrapper {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .article-card {
            background: var(--white);
            border-radius: 8px;
            border: 1px solid #eee;
            padding: 20px;
            display: flex;
            gap: 20px;
            transition: var(--transition);
        }

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

        .article-content h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }

        .article-content h3 a {
            color: var(--text-dark);
            text-decoration: none;
        }

        .article-content h3 a:hover {
            color: var(--primary);
        }

        .article-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 百科小册 */
        .wiki-card {
            background-color: var(--gray-light);
            border-radius: 8px;
            padding: 25px;
        }

        .wiki-card h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
        }

        .wiki-list {
            list-style: none;
        }

        .wiki-list li {
            margin-bottom: 15px;
        }

        .wiki-list strong {
            display: block;
            font-size: 0.95rem;
            color: var(--primary);
        }

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

        /* 表单与转化 */
        .form-section {
            background: linear-gradient(135deg, #1a1a1a 0%, #2a0305 100%);
            color: var(--white);
        }

        .form-container {
            max-width: 700px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.05);
            padding: 40px;
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(0,0,0,0.3);
            color: var(--white);
            border-radius: 6px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 10px rgba(230, 0, 18, 0.3);
        }

        /* 加盟代理 */
        .agent-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .agent-qr {
            text-align: center;
            background: var(--white);
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.05);
            border-top: 4px solid var(--primary);
        }

        .agent-qr img {
            width: 180px;
            height: 180px;
            margin-bottom: 15px;
        }

        /* 侧边悬停客服 */
        .sticky-contact {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .sticky-btn {
            background-color: var(--primary);
            color: var(--white);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            font-size: 1.2rem;
            position: relative;
        }

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

        .qr-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--white);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 150px;
        }

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

        .qr-popover p {
            color: var(--text-dark);
            font-size: 0.75rem;
            margin-top: 5px;
        }

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

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: var(--white);
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

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

        .footer-info h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.2rem;
        }

        .footer-info p {
            color: rgba(255,255,255,0.7);
            margin-bottom: 10px;
        }

        .footer-links h4 {
            color: var(--white);
            margin-bottom: 15px;
            font-size: 1rem;
            border-left: 3px solid var(--primary);
            padding-left: 10px;
        }

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

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

        .footer-links a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-bottom p {
            color: rgba(255,255,255,0.5);
        }

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

        .friend-links a {
            color: rgba(255,255,255,0.5);
            text-decoration: none;
        }

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

        /* 响应式适配 */
        @media (max-width: 992px) {
            .hero h1 { font-size: 2.2rem; }
            .hero-features { grid-template-columns: repeat(2, 1fr); }
            .about-grid, .prod-grid, .agent-grid { grid-template-columns: 1fr; }
            .services-grid, .pricing-grid { grid-template-columns: 1fr; }
            .training-grid { grid-template-columns: repeat(3, 1fr); }
            .reviews-grid { grid-template-columns: 1fr; }
            .articles-wrapper { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--dark);
                padding: 20px;
                border-bottom: 2px solid var(--primary);
            }
            
            .nav-menu.active {
                display: flex;
            }

            .nav-toggle {
                display: block;
            }

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