:root {
            --primary: #6366f1;
            --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
            --bg-gradient: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
            --card-bg: rgba(255, 255, 255, 0.85);
            --text-main: #0f172a;
            --text-muted: #475569;
            --border-color: rgba(226, 232, 240, 0.8);
            --accent-glow: 0 8px 32px 0 rgba(99, 102, 241, 0.1);
        }

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

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

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0,0,0,0.03);
        }

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

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

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

        nav {
            display: flex;
            gap: 20px;
        }

        nav a, .ai-page-home-link {
            text-decoration: none;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }

        nav a:hover, .ai-page-home-link:hover {
            color: var(--primary);
        }

        .nav-btns {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-nav-outline {
            border: 1px solid var(--primary);
            padding: 8px 16px;
            border-radius: 20px;
            color: var(--primary);
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s;
        }

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

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

        /* Hero首屏 - 斑斓彩调 绝对无图 */
        .hero {
            padding: 160px 0 80px 0;
            position: relative;
            background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.08) 0%, transparent 40%);
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: linear-gradient(90deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
            border: 1px solid rgba(99, 102, 241, 0.2);
            padding: 6px 16px;
            border-radius: 30px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            animation: pulse 2s infinite;
        }

        h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 24px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

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

        .btn-gradient {
            background: var(--primary-gradient);
            color: #fff;
            padding: 14px 32px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 700;
            box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
        }

        .btn-white {
            background: #fff;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            padding: 14px 32px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 700;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }

        .btn-white:hover {
            border-color: var(--primary);
            background: rgba(99, 102, 241, 0.02);
            transform: translateY(-2px);
        }

        /* 核心优势数据卡片 */
        .section-padding {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-title h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-muted);
            font-size: 16px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: var(--accent-glow);
            transition: transform 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 关于我们与平台介绍 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .intro-content h3 {
            font-size: 24px;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .intro-content p {
            margin-bottom: 15px;
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 25px;
        }

        .intro-tag {
            background: rgba(99, 102, 241, 0.05);
            border: 1px solid rgba(99, 102, 241, 0.15);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }

        .intro-card {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(236, 72, 153, 0.05) 100%);
            border: 1px dashed var(--primary);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
        }

        .intro-card-icon {
            font-size: 40px;
            margin-bottom: 15px;
        }

        /* 全平台AIGC服务支持 */
        .logo-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            margin-top: 30px;
        }

        .logo-badge {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .logo-badge:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: scale(1.05);
        }

        /* 一站式AIGC制作场景与解决方案 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: rgba(99, 102, 241, 0.3);
            box-shadow: var(--accent-glow);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: var(--primary-gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: bold;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 15px;
        }

        .service-features {
            list-style: none;
            font-size: 13px;
            color: var(--text-main);
        }

        .service-features li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .service-features li::before {
            content: '✓';
            color: #10b981;
            font-weight: bold;
        }

        /* 标准化AIGC流程/时间线 */
        .timeline-flow {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline-flow::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-color);
            transform: translateX(-50%);
        }

        .timeline-step {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            position: relative;
        }

        .timeline-step:nth-child(even) {
            flex-direction: row-reverse;
        }

        .timeline-pointer {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary);
            border: 4px solid #fff;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
        }

        .timeline-content {
            width: 45%;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .timeline-content h4 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 8px;
        }

        /* 技术标准与对比评测 */
        .rating-box {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(236, 72, 153, 0.05) 100%);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .rating-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .rating-num {
            font-size: 48px;
            font-weight: 900;
            color: var(--primary);
        }

        .rating-stars {
            color: #f59e0b;
            font-size: 24px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            background: #fff;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        th {
            background: #f8fafc;
            font-weight: 700;
            color: var(--text-main);
        }

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

        .highlight-row {
            background: rgba(99, 102, 241, 0.02);
            font-weight: 600;
        }

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

        .case-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--accent-glow);
        }

        .case-img-container {
            height: 200px;
            overflow: hidden;
            position: relative;
            background: #e2e8f0;
        }

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

        .case-body {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            background: rgba(99, 102, 241, 0.08);
            color: var(--primary);
            font-size: 11px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        /* Token 比价 */
        .token-compare-wrapper {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            padding: 30px;
        }

        .token-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .token-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 20px;
            border-radius: 8px;
            background: #f8fafc;
            border: 1px solid var(--border-color);
        }

        .token-item.cheapest {
            border-color: rgba(16, 185, 129, 0.3);
            background: rgba(16, 185, 129, 0.02);
        }

        .token-name {
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .badge-green {
            background: rgba(16, 185, 129, 0.1);
            color: #10b981;
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
        }

        /* 人工智能认证培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .train-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .train-card:hover {
            transform: translateY(-3px);
            border-color: var(--primary);
        }

        .train-icon {
            font-size: 32px;
            margin-bottom: 12px;
        }

        .train-card h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

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

        .review-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .review-text {
            font-style: italic;
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 20px;
            line-height: 1.7;
        }

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

        .avatar-placeholder {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
        }

        .user-info h5 {
            font-size: 14px;
            font-weight: 700;
        }

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

        /* 术语百科与FAQ折叠面板 */
        .faq-wrapper {
            max-width: 900px;
            margin: 0 auto;
        }

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

        .faq-header {
            padding: 18px 24px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            font-size: 15px;
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(248, 250, 252, 0.5);
        }

        .faq-content {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            border-top: 1px solid var(--border-color);
        }

        .faq-icon-indicator {
            transition: transform 0.3s;
            font-weight: normal;
        }

        .faq-item.active .faq-icon-indicator {
            transform: rotate(180deg);
        }

        .faq-item.active .faq-body {
            max-height: 500px;
        }

        /* 资讯 / 知识库 / 最新文章 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .news-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.01);
            transition: all 0.3s;
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

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

        .news-card h4 {
            font-size: 14px;
            line-height: 1.5;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .news-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 需求提交表单区 */
        .form-section-wrapper {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--accent-glow);
            max-width: 800px;
            margin: 0 auto;
        }

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

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        label {
            font-size: 14px;
            font-weight: 600;
        }

        input, select, textarea {
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            font-size: 14px;
            background: #f8fafc;
            transition: all 0.3s;
        }

        input:focus, select:focus, textarea:focus {
            border-color: var(--primary);
            outline: none;
            background: #fff;
        }

        .btn-submit {
            background: var(--primary-gradient);
            color: #fff;
            border: none;
            padding: 14px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: opacity 0.3s;
            width: 100%;
        }

        .btn-submit:hover {
            opacity: 0.95;
        }

        /* 联系我们与加盟代理 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

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

        .contact-item {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
        }

        .contact-icon {
            font-size: 24px;
            color: var(--primary);
        }

        .qr-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
        }

        .qr-card img {
            max-width: 150px;
            height: auto;
            margin-bottom: 15px;
            border-radius: 8px;
        }

        /* 友情链接与页脚 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 14px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: #fff;
            margin-bottom: 15px;
        }

        .footer-links h5 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 15px;
        }

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

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

        .footer-links ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }

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

        .friend-links-area {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            margin-bottom: 30px;
        }

        .friend-links-area h5 {
            color: #fff;
            margin-bottom: 12px;
            font-size: 13px;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
        }

        .friend-links-list a {
            color: #64748b;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.3s;
        }

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

        .copyright-area {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: #64748b;
        }

        /* 浮动客服组件 */
        .floating-service {
            position: fixed;
            bottom: 40px;
            right: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
            transition: transform 0.3s;
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .float-btn .tooltip-qr {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            display: none;
            width: 160px;
            border: 1px solid var(--border-color);
        }

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

        .tooltip-qr img {
            width: 100%;
            height: auto;
            display: block;
            margin-bottom: 5px;
        }

        .tooltip-qr p {
            color: var(--text-main);
            font-size: 12px;
            margin: 0;
            text-align: center;
        }

        /* 动画关键帧 */
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .cases-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 32px;
            }
            nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }
            nav.active {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .intro-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .timeline-flow::before {
                left: 20px;
            }
            .timeline-step {
                flex-direction: row !important;
            }
            .timeline-pointer {
                left: 20px;
                transform: translateX(-50%);
            }
            .timeline-content {
                width: calc(100% - 40px);
                margin-left: 40px;
            }
            .services-grid, .cases-grid, .reviews-grid {
                grid-template-columns: 1fr;
            }
            .training-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
        }