:root {
            --primary: #4f46e5;
            --primary-hover: #4338ca;
            --text-main: #0f172a;
            --text-muted: #475569;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
            --rainbow-gradient: linear-gradient(90deg, #ff5e62, #ff9966, #ffea00, #4effa4, #00f0ff, #7000ff);
        }

        * {
            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-main);
            background-color: var(--bg-light);
        }

        body {
            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: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
        }

        .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: 40px;
            width: auto;
        }

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

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

        nav a {
            text-decoration: none;
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s;
        }

        nav a:hover {
            color: var(--primary);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            transition: 0.3s;
        }

        /* 首屏 Hero 区域 (无图片) */
        .hero {
            position: relative;
            padding: 100px 0 80px 0;
            background: radial-gradient(circle at 10% 20%, rgba(0, 240, 255, 0.05) 0%, rgba(112, 0, 255, 0.05) 90.2%);
            text-align: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 234, 0, 0.03) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(79, 70, 229, 0.15);
        }

        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 20px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

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

        .hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 50px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--bg-white);
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
        }

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

        .btn-outline {
            background: var(--bg-white);
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }

        .btn-outline:hover {
            background: var(--bg-light);
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: var(--bg-white);
            padding: 24px;
            border-radius: 12px;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
            border-top: 4px solid var(--primary);
            transition: transform 0.3s;
        }

        .stat-card:nth-child(2) { border-top-color: #ff5e62; }
        .stat-card:nth-child(3) { border-top-color: #00f0ff; }
        .stat-card:nth-child(4) { border-top-color: #ffea00; }

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

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 章节通用样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .section-title-area h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title-area h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--rainbow-gradient);
            border-radius: 2px;
        }

        .section-title-area p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }

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

        .about-text h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 16px;
            font-size: 1rem;
            line-height: 1.7;
        }

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

        .about-feature-item {
            padding: 16px;
            background: var(--bg-light);
            border-radius: 8px;
            border-left: 4px solid var(--primary);
        }

        .about-feature-item h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }

        .about-feature-item p {
            font-size: 0.85rem;
            margin: 0;
        }

        /* 全平台 AIGC 服务标签云 */
        .tag-cloud-wrapper {
            background: var(--bg-light);
            padding: 40px;
            border-radius: 16px;
            border: 1px dashed var(--border-color);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .tag-item {
            padding: 8px 16px;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            transition: all 0.3s ease;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
        }

        .tag-item:hover {
            border-color: transparent;
            color: white;
            background: var(--primary);
            transform: scale(1.05);
            box-shadow: 0 4px 10px rgba(79, 70, 229, 0.2);
        }

        .tag-item:nth-child(3n):hover { background: #ff5e62; }
        .tag-item:nth-child(3n+1):hover { background: #00f0ff; color: var(--text-main); }
        .tag-item:nth-child(3n+2):hover { background: #ffea00; color: var(--text-main); }

        /* 一站式制作场景 & 解决方案 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .feature-card {
            background: var(--bg-white);
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            border: 1px solid var(--border-color);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            border-color: var(--primary);
        }

        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            background: rgba(79, 70, 229, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* 流程步骤与时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

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

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
            box-sizing: border-box;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            right: -6px;
            top: 26px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--bg-white);
            z-index: 1;
        }

        .timeline-item.left {
            left: 0;
            text-align: right;
        }

        .timeline-item.right {
            left: 50%;
            text-align: left;
        }

        .timeline-item.right::after {
            left: -6px;
        }

        .timeline-content {
            background: var(--bg-white);
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border-color);
        }

        .timeline-content h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--primary);
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border-color);
            background: var(--bg-white);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

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

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

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

        .badge-score {
            display: inline-block;
            padding: 4px 10px;
            background: #22c55e;
            color: white;
            border-radius: 5px;
            font-weight: bold;
            font-size: 0.9rem;
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            background: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border-color);
        }

        .case-img-holder {
            width: 100%;
            height: 200px;
            background-color: #e2e8f0;
            overflow: hidden;
        }

        .case-img-holder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }

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

        .case-info {
            padding: 20px;
        }

        .case-info h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .case-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 培训计划 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(255, 94, 98, 0.05) 100%);
            border: 1px solid rgba(79, 70, 229, 0.15);
            padding: 24px;
            border-radius: 12px;
            text-align: center;
        }

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

        .training-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .training-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            background: var(--primary);
            color: white;
            padding: 3px 8px;
            border-radius: 4px;
        }

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

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

        .faq-header {
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            user-select: none;
            transition: background 0.3s;
        }

        .faq-header:hover {
            background: var(--bg-light);
        }

        .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-body {
            padding: 0 24px 18px 24px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* 客户评论 */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .review-text {
            font-style: italic;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

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

        .avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--rainbow-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 1.1rem;
        }

        .user-info h5 {
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

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

        /* 文章列表 */
        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            transition: all 0.3s;
        }

        .article-card:hover {
            border-color: var(--primary);
            transform: translateX(4px);
        }

        .article-card h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .article-card a {
            color: var(--text-main);
            text-decoration: none;
            font-weight: 600;
        }

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

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

        /* 联系与表单 & 底部信息 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .form-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
        }

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

        .form-label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            background-color: var(--bg-light);
            color: var(--text-main);
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.3s;
        }

        .form-control:focus {
            border-color: var(--primary);
            background-color: var(--bg-white);
        }

        .contact-info-panel {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            color: white;
            border-radius: 12px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-info-panel h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 10px;
        }

        .contact-item {
            margin-bottom: 20px;
        }

        .contact-item span {
            display: block;
            font-size: 0.85rem;
            color: #94a3b8;
        }

        .contact-item p {
            font-size: 1.05rem;
            font-weight: 500;
        }

        .qrcode-area {
            display: flex;
            align-items: center;
            gap: 20px;
            background: rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 8px;
        }

        .qrcode-area img {
            width: 90px;
            height: 90px;
            border-radius: 6px;
            background: white;
            padding: 4px;
        }

        .qrcode-desc {
            font-size: 0.85rem;
            color: #cbd5e1;
        }

        /* 友情链接与页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 50px 0 20px 0;
            font-size: 0.9rem;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
            padding-bottom: 30px;
            border-bottom: 1px solid #1e293b;
        }

        .footer-col h5 {
            color: white;
            font-size: 1rem;
            margin-bottom: 20px;
        }

        .footer-col p {
            line-height: 1.8;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 18px;
        }

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

        .footer-links a:hover {
            color: white;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 悬浮客服 */
        .float-kefu {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 12px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            width: 140px;
            text-align: center;
            display: none;
        }

        .float-kefu img {
            width: 100%;
            height: auto;
            border-radius: 6px;
            margin-bottom: 6px;
        }

        .float-kefu span {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .kefu-trigger {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 1000;
            width: 50px;
            height: 50px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
            font-size: 1.5rem;
            transition: transform 0.3s;
        }

        .kefu-trigger:hover {
            transform: scale(1.1);
        }

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

        @media (max-width: 768px) {
            .nav-wrapper {
                position: relative;
            }
            nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: white;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            }
            nav.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .about-content, .contact-layout {
                grid-template-columns: 1fr;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left !important;
            }
            .timeline-item.right {
                left: 0;
            }
            .timeline-item::after {
                left: 14px !important;
            }
            .case-grid, .review-grid, .article-list {
                grid-template-columns: 1fr;
            }
        }