/* 变量及基础重置 */
        :root {
            --primary: #6366f1;
            --primary-light: #818cf8;
            --secondary: #ec4899;
            --accent: #f43f5e;
            --text-dark: #1e1b4b;
            --text-muted: #475569;
            --bg-light: #f8fafc;
            --bg-pure: #ffffff;
            --gradient-rainbow: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
            --gradient-soft: linear-gradient(135deg, #e0e7ff 0%, #fce7f3 100%);
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
            --shadow-md: 0 10px 25px -5px rgba(99, 102, 241, 0.1), 0 8px 10px -6px rgba(99, 102, 241, 0.1);
            --shadow-lg: 0 20px 40px -15px rgba(99, 102, 241, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --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(--bg-light);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 斑斓彩调风格全局装饰背景 */
        .page-bg-decor {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            background: radial-gradient(circle at 10% 20%, rgba(224, 231, 255, 0.4) 0%, rgba(252, 231, 243, 0.3) 90%);
            pointer-events: none;
        }

        /* 居中主容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        /* 标题设计 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--gradient-rainbow);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 99px;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--gradient-rainbow);
            color: var(--bg-pure);
            box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(236, 72, 153, 0.4);
        }

        .btn-secondary {
            background: var(--bg-pure);
            color: var(--primary);
            border: 2px solid var(--primary);
        }

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

        /* 顶部导航 */
        header {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
        }

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

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-wrap img {
            height: 40px;
            display: block;
        }

        .logo-wrap span {
            font-size: 1.25rem;
            font-weight: 800;
            background: var(--gradient-rainbow);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 24px;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .nav-menu a:hover {
            color: var(--secondary);
        }

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

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 4px;
        }

        .hamburger span {
            width: 24px;
            height: 2px;
            background-color: var(--text-dark);
            transition: var(--transition);
        }

        /* 移动端菜单激活样式 */
        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* 首屏 Hero - 无图片，纯色彩斑斓流光设计 */
        .hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%);
            text-align: center;
            position: relative;
        }

        .hero-inner {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .hero-badge {
            background: rgba(99, 102, 241, 0.08);
            border: 1px solid rgba(99, 102, 241, 0.2);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 99px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            display: inline-block;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-dark);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero h1 span {
            background: var(--gradient-rainbow);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p.lead {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 700px;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            margin-bottom: 60px;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            width: 100%;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(10px);
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.5);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
        }

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

        .stat-card h3 {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--gradient-rainbow);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 500;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 18px;
            font-size: 1.05rem;
        }

        .about-highlights {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .highlight-item {
            background: var(--bg-pure);
            padding: 20px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--secondary);
            box-shadow: var(--shadow-sm);
        }

        .highlight-item h4 {
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .highlight-item p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }

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

        .service-card {
            background: var(--bg-pure);
            border-radius: var(--radius-md);
            padding: 32px;
            border: 1px solid rgba(99, 102, 241, 0.1);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--gradient-rainbow);
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            width: 56px;
            height: 56px;
            background: var(--gradient-soft);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--primary);
            font-size: 1.5rem;
        }

        .service-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tags span {
            background: rgba(99, 102, 241, 0.05);
            color: var(--primary);
            padding: 4px 10px;
            font-size: 0.8rem;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 流程步骤 */
        .step-timeline {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            position: relative;
            margin-top: 40px;
        }

        .step-timeline::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 50px;
            right: 50px;
            height: 4px;
            background: var(--gradient-soft);
            z-index: 1;
        }

        .step-item {
            position: relative;
            z-index: 2;
            text-align: center;
            flex: 1;
        }

        .step-number {
            width: 80px;
            height: 80px;
            background: var(--bg-pure);
            border: 4px solid var(--primary-light);
            color: var(--primary);
            font-size: 1.8rem;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .step-item:hover .step-number {
            transform: scale(1.1);
            background: var(--gradient-rainbow);
            color: var(--bg-pure);
            border-color: transparent;
        }

        .step-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            padding: 0 10px;
        }

        /* 对比评测表格 */
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            background: var(--bg-pure);
        }

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

        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(99, 102, 241, 0.08);
        }

        th {
            background-color: #f1f5f9;
            color: var(--text-dark);
            font-weight: 700;
        }

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

        .highlight-row {
            background: rgba(99, 102, 241, 0.03);
        }

        .rating-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--gradient-rainbow);
            color: var(--bg-pure);
            padding: 4px 12px;
            border-radius: 99px;
            font-weight: bold;
            font-size: 0.9rem;
        }

        /* 案例展示区 */
        .case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 30px;
        }

        .case-card {
            background: var(--bg-pure);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .case-img-container {
            width: 100%;
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--gradient-soft);
        }

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

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 24px;
        }

        .case-category {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

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

        /* 评论区域 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .testimonial-card {
            background: var(--bg-pure);
            border-radius: var(--radius-md);
            padding: 30px;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(236, 72, 153, 0.05);
            position: relative;
        }

        .quote-icon {
            position: absolute;
            top: 20px;
            right: 30px;
            font-size: 3rem;
            color: rgba(99, 102, 241, 0.05);
            font-family: serif;
            line-height: 1;
        }

        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 24px;
            border-top: 1px solid #f1f5f9;
            padding-top: 20px;
        }

        .user-avatar-placeholder {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-rainbow);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.1rem;
        }

        .user-meta h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
        }

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

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-pure);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(99, 102, 241, 0.05);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
            color: var(--text-dark);
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(99, 102, 241, 0.01);
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid rgba(99, 102, 241, 0.05);
            padding-top: 15px;
        }

        /* 需求匹配表单 & 联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
        }

        .contact-info {
            background: var(--gradient-soft);
            padding: 40px;
            border-radius: var(--radius-lg);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-methods {
            list-style: none;
            margin-top: 30px;
        }

        .contact-methods li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            background: var(--bg-pure);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
        }

        .contact-text h4 {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .contact-text p {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
        }

        .contact-qr-box {
            display: flex;
            gap: 20px;
            margin-top: 30px;
            align-items: center;
        }

        .contact-qr-box img {
            width: 110px;
            height: 110px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            background: #fff;
            padding: 5px;
        }

        .contact-form-card {
            background: var(--bg-pure);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-lg);
        }

        .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 #cbd5e1;
            border-radius: var(--radius-sm);
            outline: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
        }

        select.form-control {
            cursor: pointer;
        }

        /* 术语百科 & 加盟代理 */
        .info-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .info-card {
            background: var(--bg-pure);
            border-radius: var(--radius-md);
            padding: 32px;
            box-shadow: var(--shadow-md);
        }

        .info-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-dark);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-item {
            background: #f1f5f9;
            color: var(--text-dark);
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 0.85rem;
            text-decoration: none;
            transition: var(--transition);
        }

        .tag-item:hover {
            background: var(--gradient-rainbow);
            color: white;
        }

        /* 文章列表 */
        .article-list {
            list-style: none;
        }

        .article-list li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px dashed #e2e8f0;
            padding-bottom: 8px;
        }

        .article-list a {
            color: var(--text-dark);
            text-decoration: none;
            font-size: 0.95rem;
            transition: var(--transition);
        }

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

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

        /* 侧边悬浮窗口 */
        .floating-widget {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-pure);
            color: var(--primary);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(99, 102, 241, 0.1);
            position: relative;
        }

        .float-btn:hover {
            background: var(--gradient-rainbow);
            color: white;
            transform: translateY(-2px);
        }

        .float-qr-popup {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            padding: 12px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            display: none;
            text-align: center;
            width: 140px;
        }

        .float-qr-popup img {
            width: 100%;
            height: auto;
        }

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

        /* 页脚设计 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }

        .footer-links h4 {
            color: #fff;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 10px;
        }

        .friendship-links a {
            color: #94a3b8;
            text-decoration: none;
            background: rgba(255, 255, 255, 0.05);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            transition: var(--transition);
        }

        .friendship-links a:hover {
            background: var(--gradient-rainbow);
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-3, .testimonial-grid, .case-grid {
                grid-template-columns: 1fr 1fr;
            }
            .contact-grid, .about-grid, .info-grid {
                grid-template-columns: 1fr;
            }
            .step-timeline {
                flex-direction: column;
                gap: 40px;
            }
            .step-timeline::before {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background: #fff;
                flex-direction: column;
                padding: 40px 24px;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
            }
            .nav-menu.active {
                left: 0;
            }
            .hamburger {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero-btns {
                flex-direction: column;
                width: 100%;
                padding: 0 20px;
            }
            .btn {
                width: 100%;
            }
            .stats-grid, .card-grid-3, .testimonial-grid, .case-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }
        }