/* 变量定义：霓虹亮彩 + 浅色底底色与强对比度 */
        :root {
            --primary-neon: #ff007f;    /* 霓虹粉 */
            --secondary-neon: #00f0ff;  /* 霓虹蓝 */
            --accent-neon: #7000ff;     /* 霓虹紫 */
            --bg-main: #f8fafc;         /* 浅冷灰底色 */
            --bg-card: rgba(255, 255, 255, 0.9);
            --text-main: #0f172a;       /* 深slate色，确保可读性 */
            --text-muted: #475569;
            --border-neon-gradient: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon));
            --shadow-neon: 0 10px 30px rgba(0, 240, 255, 0.08), 0 5px 15px rgba(255, 0, 127, 0.05);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1280px;
        }

        /* 基础重置 */
        * {
            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-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 主体宽度限制容器 */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 通用标题样式 */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2rem;
            color: var(--text-main);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--border-neon-gradient);
            border-radius: 2px;
        }
        .section-header p {
            color: var(--text-muted);
            margin-top: 12px;
            font-size: 1rem;
        }

        /* 按钮通用 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-neon {
            background: var(--border-neon-gradient);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
        }
        .btn-neon:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.4);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border: 2px solid var(--text-main);
        }
        .btn-outline:hover {
            border-color: var(--primary-neon);
            color: var(--primary-neon);
            transform: translateY(-2px);
        }

        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(248, 250, 252, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-box {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }
        .nav-menu a {
            color: var(--text-main);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: 4px;
        }
        .nav-menu a:hover {
            color: var(--primary-neon);
            background: rgba(255, 0, 127, 0.05);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: transparent;
        }
        .nav-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-main);
            transition: var(--transition);
        }

        /* Hero 首屏 - 无任何图片 */
        .hero-section {
            padding: 160px 0 100px 0;
            background: radial-gradient(circle at 80% 20%, rgba(0, 240, 255, 0.07), transparent 45%),
                        radial-gradient(circle at 10% 80%, rgba(255, 0, 127, 0.07), transparent 45%);
            text-align: center;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(112, 0, 255, 0.08);
            border: 1px solid rgba(112, 0, 255, 0.2);
            color: var(--accent-neon);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 50px;
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: 2.8rem;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--text-main) 30%, var(--accent-neon) 70%, var(--primary-neon));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 36px auto;
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .stats-section {
            padding: 40px 0;
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.15);
            padding: 24px;
            border-radius: 16px;
            text-align: center;
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-neon);
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-neon);
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 关于我们 */
        .about-section {
            padding: 80px 0;
        }
        .about-box {
            background: var(--bg-card);
            border-radius: 24px;
            padding: 48px;
            border: 1px solid rgba(112, 0, 255, 0.1);
            box-shadow: var(--shadow-neon);
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .about-text p {
            color: var(--text-muted);
            margin-bottom: 16px;
            font-size: 1.05rem;
            text-indent: 2em;
        }

        /* 全平台AIGC服务 */
        .services-section {
            padding: 80px 0;
            background: rgba(0, 240, 255, 0.02);
        }
        .model-list-wrap {
            margin-top: 30px;
            padding: 20px;
            background: var(--bg-card);
            border-radius: 12px;
            border: 1px solid rgba(0, 240, 255, 0.15);
        }
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .model-tag {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(0, 240, 255, 0.2);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-main);
            font-weight: 500;
            transition: var(--transition);
        }
        .model-tag:hover {
            background: var(--border-neon-gradient);
            color: #fff;
            border-color: transparent;
        }

        /* 一站式AIGC制作 & 解决方案 */
        .creation-section {
            padding: 80px 0;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .service-card {
            background: var(--bg-card);
            border: 1px solid rgba(112, 0, 255, 0.1);
            border-radius: 16px;
            padding: 32px;
            transition: var(--transition);
            box-shadow: var(--shadow-neon);
        }
        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--secondary-neon);
            box-shadow: 0 15px 35px rgba(0, 240, 255, 0.15);
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .service-card h3::before {
            content: "✦";
            color: var(--primary-neon);
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 解决方案与全国网络 */
        .solutions-section {
            padding: 80px 0;
            background: rgba(112, 0, 255, 0.01);
        }
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 40px auto 0 auto;
            padding: 20px 0;
        }
        .timeline::after {
            content: '';
            position: absolute;
            width: 4px;
            background: var(--border-neon-gradient);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
        }
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            background: inherit;
            width: 50%;
        }
        .timeline-item::after {
            content: '';
            position: absolute;
            width: 16px;
            height: 16px;
            right: -8px;
            background-color: var(--bg-main);
            border: 4px solid var(--primary-neon);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }
        .left {
            left: 0;
        }
        .right {
            left: 50%;
        }
        .right::after {
            left: -8px;
        }
        .timeline-content {
            padding: 20px;
            background: var(--bg-card);
            position: relative;
            border-radius: 12px;
            border: 1px solid rgba(0, 240, 255, 0.15);
            box-shadow: var(--shadow-neon);
        }

        /* 案例展示区 */
        .cases-section {
            padding: 80px 0;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .case-card {
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(112, 0, 255, 0.1);
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
        }
        .case-card:hover {
            transform: scale(1.02);
            border-color: var(--primary-neon);
        }
        .case-image-wrapper {
            position: relative;
            width: 100%;
            overflow: hidden;
            background-color: #eaeaea;
        }
        .case-image-wrapper img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
        }
        .case-info {
            padding: 24px;
        }
        .case-tag {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--text-main);
            font-size: 0.75rem;
            border-radius: 4px;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .case-info h4 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 评测与比价 */
        .compare-section {
            padding: 80px 0;
            background: rgba(0, 240, 255, 0.02);
        }
        .comparison-table-wrapper {
            overflow-x: auto;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid rgba(0, 240, 255, 0.15);
            box-shadow: var(--shadow-neon);
            margin-bottom: 40px;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }
        .comparison-table th, .comparison-table td {
            padding: 16px 24px;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }
        .comparison-table th {
            background-color: rgba(112, 0, 255, 0.03);
            color: var(--text-main);
            font-weight: 700;
        }
        .comparison-table tr:hover {
            background-color: rgba(0, 240, 255, 0.01);
        }
        .rating-box {
            text-align: center;
            background: var(--bg-card);
            border: 2px solid var(--primary-neon);
            border-radius: 16px;
            padding: 30px;
            max-width: 400px;
            margin: 0 auto;
            box-shadow: var(--shadow-neon);
        }
        .rating-score {
            font-size: 3rem;
            font-weight: 900;
            color: var(--primary-neon);
        }
        .rating-stars {
            color: #fbbf24;
            font-size: 1.5rem;
            margin: 8px 0;
        }

        /* 培训中心 */
        .training-section {
            padding: 80px 0;
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .training-card {
            background: var(--bg-card);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            border: 1px solid rgba(112, 0, 255, 0.1);
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
        }
        .training-card:hover {
            border-color: var(--accent-neon);
            transform: translateY(-4px);
        }
        .training-card h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .training-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 智能需求匹配与表单 */
        .form-section {
            padding: 80px 0;
            background: linear-gradient(180deg, rgba(248, 250, 252, 1) 0%, rgba(240, 245, 255, 1) 100%);
        }
        .form-container {
            max-width: 650px;
            margin: 0 auto;
            background: var(--bg-card);
            padding: 40px;
            border-radius: 24px;
            border: 1px solid rgba(0, 240, 255, 0.15);
            box-shadow: var(--shadow-neon);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid rgba(112, 0, 255, 0.2);
            background: #ffffff;
            border-radius: 8px;
            color: var(--text-main);
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary-neon);
            box-shadow: 0 0 0 3px rgba(255, 0, 127, 0.1);
        }
        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        /* FAQ折叠面板 */
        .faq-section {
            padding: 80px 0;
        }
        .faq-wrapper {
            max-width: 850px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.1);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-neon);
        }
        .faq-header {
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
            font-weight: 600;
        }
        .faq-header:hover {
            background-color: rgba(0, 240, 255, 0.02);
        }
        .faq-icon {
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .faq-content {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 0 solid transparent;
        }
        .faq-item.active .faq-content {
            max-height: 1000px;
            padding: 18px 24px;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            transition: max-height 0.5s ease-in-out;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--primary-neon);
        }

        /* 术语百科与自助排查 */
        .wiki-section {
            padding: 80px 0;
            background: rgba(112, 0, 255, 0.01);
        }

        /* 客户评论卡片 */
        .reviews-section {
            padding: 80px 0;
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .review-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid rgba(0, 240, 255, 0.1);
            box-shadow: var(--shadow-neon);
        }
        .review-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .review-avatar {
            width: 45px;
            height: 45px;
            background: var(--border-neon-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .review-meta h5 {
            font-size: 1rem;
            margin-bottom: 2px;
        }
        .review-meta span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .review-content {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* 知识库/文章列表 */
        .articles-section {
            padding: 80px 0;
            background: rgba(0, 240, 255, 0.02);
        }
        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .article-item-card {
            background: var(--bg-card);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid rgba(112, 0, 255, 0.1);
            transition: var(--transition);
        }
        .article-item-card:hover {
            border-color: var(--primary-neon);
            transform: translateY(-3px);
        }
        .article-item-card h4 {
            font-size: 1rem;
            margin-bottom: 12px;
        }
        .article-link {
            font-size: 0.85rem;
            color: var(--accent-neon);
            text-decoration: none;
            word-break: break-all;
            display: block;
        }
        .article-link:hover {
            color: var(--primary-neon);
        }

        /* 联系我们 & 加盟代理 */
        .contact-section {
            padding: 80px 0;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 40px;
            align-items: flex-start;
        }
        .contact-info-panel {
            background: var(--bg-card);
            padding: 40px;
            border-radius: 24px;
            border: 1px solid rgba(0, 240, 255, 0.15);
            box-shadow: var(--shadow-neon);
        }
        .contact-method {
            margin-bottom: 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .contact-icon {
            width: 40px;
            height: 40px;
            background: rgba(112, 0, 255, 0.08);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-neon);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .contact-detail h5 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .contact-detail p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .qrcode-box {
            text-align: center;
            margin-top: 30px;
            padding: 20px;
            background: #ffffff;
            border-radius: 12px;
            border: 1px dashed rgba(0, 240, 255, 0.3);
            display: inline-block;
        }
        .qrcode-box img {
            width: 140px;
            height: 140px;
            margin-bottom: 8px;
            display: block;
        }
        .qrcode-box span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 页脚 */
        footer {
            background: #0f172a; /* 页脚强制使用安全深色底，确保版权等清晰 */
            color: #94a3b8;
            padding: 60px 0 20px 0;
            border-top: 2px solid var(--accent-neon);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        .footer-logo {
            
            height: 40px;
            margin-bottom: 16px;
        }
        .footer-title {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary-neon);
        }
        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .friendship-links a {
            color: #94a3b8;
            font-size: 0.85rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .friendship-links a:hover {
            color: var(--secondary-neon);
        }
        .copyright-area {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* 侧边浮动 */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #ffffff;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            color: var(--text-main);
            transition: var(--transition);
            border: 1px solid rgba(0, 240, 255, 0.2);
            cursor: pointer;
            position: relative;
        }
        .float-btn:hover {
            background: var(--border-neon-gradient);
            color: #ffffff;
            transform: translateY(-2px);
        }
        .float-tooltip {
            position: absolute;
            right: 60px;
            background: #ffffff;
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 0.8rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            border: 1px solid rgba(112, 0, 255, 0.1);
        }
        .float-btn:hover .float-tooltip {
            opacity: 1;
            visibility: visible;
        }

        /* 动画控制 */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-in.appear {
            opacity: 1;
            transform: translateY(0);
        }

        /* 响应式样式适配 */
        @media (max-width: 992px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background: var(--bg-main);
                flex-direction: column;
                padding: 30px;
                gap: 15px;
                transition: var(--transition);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                left: 0;
            }
            .nav-toggle {
                display: flex;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item::after {
                left: 23px;
            }
            .right {
                left: 0%;
            }
        }
        @media (max-width: 576px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .about-box {
                padding: 24px;
            }
            .form-container {
                padding: 24px;
            }
        }