:root {
            --primary: #0052d9;
            --primary-light: #e3eeff;
            --secondary: #ff5f15;
            --accent: #00b578;
            --dark: #0f172a;
            --gray-light: #f8fafc;
            --gray-border: #e2e8f0;
            --text-muted: #64748b;
            --container-w: 1200px;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            border-bottom: 1px solid var(--gray-border);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
        }

        .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: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
        }

        .nav-item {
            font-size: 14px;
            font-weight: 500;
            color: var(--dark);
            padding: 5px 10px;
            border-radius: 4px;
        }

        .nav-item:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-btn {
            background-color: var(--secondary);
            color: #fff;
            padding: 8px 16px;
            border-radius: 6px;
            font-weight: bold;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: transform 0.2s, background-color 0.2s;
        }

        .nav-btn:hover {
            background-color: #e04f0e;
            transform: translateY(-1px);
            color: #fff;
        }

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

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 2px;
            transition: 0.3s;
        }

        /* 移动端导航展开态 */
        @media (max-width: 1024px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #fff;
                border-bottom: 1px solid var(--gray-border);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }
        }

        /* Hero首屏 - 严禁出现图片 */
        .hero {
            background: radial-gradient(circle at 80% 20%, rgba(0, 82, 217, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 20% 80%, rgba(255, 95, 21, 0.08) 0%, transparent 50%),
                        #fff;
            padding: 100px 0 80px;
            text-align: center;
            border-bottom: 1px solid var(--gray-border);
            position: relative;
            overflow: hidden;
        }

        .hero-badge {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 25px;
            border: 1px solid rgba(0, 82, 217, 0.2);
        }

        .hero h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 900;
            line-height: 1.25;
            color: var(--dark);
            max-width: 900px;
            margin: 0 auto 20px;
        }

        .hero p {
            font-size: clamp(16px, 2vw, 20px);
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 35px;
        }

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

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
            border: 2px solid var(--primary);
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(0, 82, 217, 0.25);
        }

        .btn-primary:hover {
            background-color: #0044bd;
            border-color: #0044bd;
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: #fff;
            color: var(--dark);
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
            border: 2px solid var(--gray-border);
            cursor: pointer;
        }

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

        /* 核心数据卡片 */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 60px;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--gray-border);
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-num span {
            color: var(--secondary);
        }

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

        /* 通用区块样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--gray-border);
        }

        .section-light {
            background-color: #fff;
        }

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

        .section-tag {
            color: var(--secondary);
            font-weight: 800;
            text-transform: uppercase;
            font-size: 14px;
            letter-spacing: 1px;
            margin-bottom: 10px;
            display: block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
        }

        .section-desc {
            color: var(--text-muted);
            max-width: 600px;
            margin: 10px auto 0;
        }

        /* 平台介绍 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .intro-grid {
                grid-template-columns: 1fr;
            }
        }

        .intro-content h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--primary);
        }

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

        .intro-feat-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .intro-feat-icon {
            color: var(--accent);
            font-weight: bold;
        }

        .intro-feat-text h4 {
            font-size: 16px;
            font-weight: 700;
        }

        .intro-feat-text p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 服务与能力 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .service-card {
            background-color: #fff;
            border: 1px solid var(--gray-border);
            border-radius: 12px;
            padding: 30px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background-color: var(--primary);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

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

        .service-card:hover {
            box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
            transform: translateY(-3px);
        }

        .service-icon {
            font-size: 28px;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .service-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-list {
            margin-top: 15px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .service-list li {
            margin-bottom: 6px;
            padding-left: 15px;
            position: relative;
        }

        .service-list li::before {
            content: '•';
            position: absolute;
            left: 0;
            color: var(--secondary);
        }

        /* AIGC一站式制作与场景 */
        .scenes-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .scene-card {
            background: var(--gray-light);
            border: 1px solid var(--gray-border);
            padding: 24px;
            border-radius: 8px;
            text-align: center;
        }

        .scene-card h4 {
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
            padding-bottom: 10px;
            display: inline-block;
        }

        .scene-card p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 支持平台标签云 */
        .tags-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }

        .tag-item {
            background: #fff;
            border: 1px solid var(--gray-border);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
            transition: all 0.2s;
        }

        .tag-item:hover {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 流程步骤与时间线 */
        .timeline {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
            position: relative;
        }

        .timeline-step {
            background: #fff;
            border: 1px solid var(--gray-border);
            padding: 30px 20px;
            border-radius: 8px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background-color: var(--secondary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            margin: 0 auto 20px;
        }

        .timeline-step h4 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .timeline-step p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测要求 */
        .rating-box {
            background: linear-gradient(135deg, var(--primary) 0%, #003eb3 100%);
            color: #fff;
            padding: 40px;
            border-radius: 12px;
            text-align: center;
            margin-bottom: 40px;
        }

        .rating-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .rating-score {
            font-size: 64px;
            font-weight: 900;
            color: #fadb14;
            line-height: 1;
        }

        .rating-stars {
            font-size: 28px;
            color: #fadb14;
            margin: 10px 0;
        }

        .rating-meta {
            font-size: 14px;
            opacity: 0.9;
        }

        .compare-table-wrapper {
            overflow-x: auto;
            background: #fff;
            border: 1px solid var(--gray-border);
            border-radius: 8px;
        }

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

        .compare-table th, .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--gray-border);
        }

        .compare-table th {
            background-color: var(--gray-light);
            font-weight: 700;
        }

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

        .highlight-col {
            background-color: rgba(0, 82, 217, 0.03);
            font-weight: 600;
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--gray-border);
        }

        .case-img-box {
            aspect-ratio: 16/9;
            background-color: var(--gray-light);
            overflow: hidden;
        }

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

        .case-info {
            padding: 20px;
        }

        .case-tag {
            font-size: 12px;
            color: var(--primary);
            font-weight: bold;
            margin-bottom: 5px;
            display: inline-block;
        }

        .case-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .case-desc {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* Token比价与匹配 */
        .token-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }

        @media (max-width: 992px) {
            .token-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 职业技术培训 */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .train-card {
            background: #fff;
            border: 1px solid var(--gray-border);
            padding: 25px 20px;
            border-radius: 8px;
            text-align: center;
            border-top: 4px solid var(--accent);
        }

        .train-card h4 {
            font-size: 16px;
            margin-bottom: 10px;
        }

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

        /* 常见问题 FAQ */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--gray-border);
            border-radius: 6px;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-trigger {
            width: 100%;
            padding: 18px 24px;
            text-align: left;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-trigger::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            font-weight: bold;
        }

        .faq-item.active .faq-trigger::after {
            content: '-';
        }

        .faq-content {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            font-size: 14px;
            color: var(--text-muted);
            border-top: 0 solid var(--gray-border);
        }

        .faq-item.active .faq-content {
            padding: 16px 24px 24px;
            max-height: 200px;
            border-top-width: 1px;
        }

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .review-card {
            background: #fff;
            border: 1px solid var(--gray-border);
            padding: 25px;
            border-radius: 8px;
            position: relative;
        }

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

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

        .review-avatar {
            width: 45px;
            height: 45px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
        }

        .review-meta h5 {
            font-size: 14px;
            font-weight: 700;
        }

        .review-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 智能需求匹配与表单 */
        .form-section {
            background: #fff;
            border: 1px solid var(--gray-border);
            border-radius: 12px;
            padding: 40px;
            max-width: 650px;
            margin: 0 auto;
        }

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

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--gray-border);
            border-radius: 6px;
            font-size: 14px;
            background-color: var(--gray-light);
        }

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

        /* 文章列表与资讯 */
        .article-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .article-card {
            background: #fff;
            border: 1px solid var(--gray-border);
            border-radius: 8px;
            padding: 25px;
            transition: transform 0.2s;
        }

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

        .article-card h4 {
            font-size: 16px;
            margin-bottom: 12px;
        }

        .article-card a {
            color: var(--primary);
            font-weight: 600;
        }

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

        /* 联系与加盟渠道 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr;
            }
        }

        .contact-info-list {
            margin-bottom: 30px;
        }

        .contact-info-item {
            margin-bottom: 15px;
            font-size: 15px;
        }

        .contact-info-item strong {
            color: var(--primary);
        }

        .qr-wrapper {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .qr-card {
            background: #fff;
            border: 1px solid var(--gray-border);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            width: 140px;
        }

        .qr-card img {
            width: 110px;
            height: 110px;
            margin: 0 auto 10px;
        }

        .qr-card span {
            font-size: 12px;
            font-weight: 700;
        }

        /* 友情链接与底部 */
        footer {
            background-color: var(--dark);
            color: #fff;
            padding: 60px 0 20px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 40px;
            margin-bottom: 20px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        .footer-brand h4 {
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 15px;
        }

        .footer-links h5 {
            font-size: 15px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 15px;
        }

        .footer-links a {
            display: block;
            color: rgba(255,255,255,0.8);
            margin-bottom: 8px;
        }

        .footer-links a:hover {
            color: var(--secondary);
        }

        .friend-links {
            margin-top: 20px;
            font-size: 12px;
            color: rgba(255,255,255,0.5);
        }

        .friend-links a {
            color: rgba(255,255,255,0.5);
            margin-right: 15px;
            display: inline-block;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: rgba(255,255,255,0.5);
            flex-wrap: wrap;
            gap: 15px;
        }

        .ai-page-home-link {
            color: var(--secondary);
            font-weight: bold;
        }

        /* 侧边悬浮浮窗 */
        .floating-widget {
            position: fixed;
            right: 20px;
            bottom: 80px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 99;
        }

        .float-btn {
            background-color: var(--primary);
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            font-size: 12px;
            text-align: center;
            line-height: 1.2;
            cursor: pointer;
            border: none;
            transition: all 0.3s;
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--secondary);
            transform: scale(1.05);
        }

        .float-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            border: 1px solid var(--gray-border);
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: none;
            width: 140px;
        }

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