/* CSS 变量定义：鲜黄耀眼风 (明亮简洁版，配合醒目黄色和深灰色/黑色字体) */
        :root {
            --primary-color: #FFD200;      /* 耀眼鲜黄 */
            --primary-hover: #E5BD00;     /* 较深鲜黄 */
            --secondary-color: #1a1a1a;   /* 极深灰/接近黑 */
            --bg-light: #F8F9FA;          /* 全局浅灰底色 */
            --bg-white: #FFFFFF;          /* 纯白背景 */
            --text-main: #2D3748;         /* 深灰色主正文 */
            --text-dark: #1A202C;         /* 接近纯黑，用于标题 */
            --text-muted: #718096;        /* 辅助灰字 */
            --accent-border: #E2E8F0;     /* 浅色分割线 */
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
            --shadow-md: 0 10px 20px rgba(0,0,0,0.08);
            --shadow-yellow: 0 10px 25px rgba(255, 210, 0, 0.25);
            --border-radius: 12px;
            --max-width: 1200px;
        }

        /* 基础重置与规范 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
        }
        body {
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: var(--text-dark);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul {
            list-style: none;
        }
        button, input, select, textarea {
            font-family: inherit;
            outline: none;
        }

        /* 全局通用布局容器 */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 通用主标题与样式 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        .section-header h2 {
            font-size: 2rem;
            color: var(--text-dark);
            font-weight: 800;
            display: inline-block;
            position: relative;
            z-index: 1;
            padding: 0 15px;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 10px;
            background-color: var(--primary-color);
            z-index: -1;
            transform: skewX(-15deg);
        }
        .section-header p {
            color: var(--text-muted);
            margin-top: 12px;
            font-size: 1rem;
        }

        /* 基础按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 700;
            border-radius: 50px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            font-size: 0.95rem;
        }
        .btn-yellow {
            background-color: var(--primary-color);
            color: var(--secondary-color);
            box-shadow: 0 4px 12px rgba(255, 210, 0, 0.3);
        }
        .btn-yellow:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-yellow);
        }
        .btn-dark {
            background-color: var(--secondary-color);
            color: #fff;
        }
        .btn-dark:hover {
            background-color: #333;
            transform: translateY(-2px);
        }

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

        /* 1. 顶部导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--accent-border);
            box-shadow: var(--shadow-sm);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-area {
            display: flex;
            align-items: center;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .nav-menu {
            display: flex;
            gap: 20px;
            align-items: center;
        }
        .nav-menu a {
            font-size: 0.95rem;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 6px;
        }
        .nav-menu a:hover {
            background-color: rgba(255, 210, 0, 0.15);
            color: var(--text-dark);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 5px;
        }
        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--secondary-color);
            transition: all 0.3s;
        }

        /* 2. Hero 首屏 - 纯文字与CSS交互，绝无图片 */
        .hero-section {
            background: linear-gradient(135deg, #FFFDF0 0%, #FFFFFF 100%);
            padding: 100px 0 80px 0;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--accent-border);
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -200px;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 210, 0, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            font-size: 0.85rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
        }
        .hero-section h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-dark);
            margin-bottom: 24px;
        }
        .hero-section h1 span {
            background: linear-gradient(90deg, #111 50%, var(--primary-hover) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
        }
        .hero-section h1 span::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 8px;
            background-color: rgba(255, 210, 0, 0.4);
            z-index: -1;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-highlights {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            border-top: 1px solid var(--accent-border);
            padding-top: 30px;
        }
        .highlight-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
        }
        .highlight-item svg {
            color: var(--primary-hover);
            flex-shrink: 0;
        }

        /* 3. 数据指标卡片 */
        .stats-section {
            background-color: var(--bg-white);
            padding: 60px 0;
            border-bottom: 1px solid var(--accent-border);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }
        .stat-card {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 30px 24px;
            text-align: center;
            border: 2px solid transparent;
            transition: all 0.3s;
        }
        .stat-card:hover {
            border-color: var(--primary-color);
            transform: translateY(-5px);
            box-shadow: var(--shadow-sm);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1;
            margin-bottom: 10px;
        }
        .stat-number span {
            color: var(--primary-hover);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 4. 关于我们 */
        .about-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 18px;
        }
        .about-text p {
            font-size: 1rem;
            color: var(--text-main);
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .about-values {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .value-card {
            background-color: var(--bg-white);
            padding: 24px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--primary-color);
        }
        .value-card h4 {
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .value-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* 5. 全平台 AIGC 服务 */
        .services-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .services-intro {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 30px;
            margin-bottom: 40px;
            border: 1px solid var(--accent-border);
        }
        .services-intro h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--text-dark);
        }
        .brand-tags-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .brand-tag {
            background-color: var(--bg-white);
            color: var(--text-dark);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid var(--accent-border);
            transition: all 0.2s;
        }
        .brand-tag:hover {
            border-color: var(--primary-color);
            background-color: var(--primary-color);
            transform: scale(1.05);
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .service-card {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 35px 24px;
            border-top: 5px solid var(--secondary-color);
            transition: all 0.3s;
        }
        .service-card:hover {
            transform: translateY(-5px);
            border-top-color: var(--primary-color);
            box-shadow: var(--shadow-md);
        }
        .service-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }
        .service-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 6. 一站式 AIGC 制作 */
        .production-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .production-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .production-card {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
        }
        .production-card:hover {
            box-shadow: var(--shadow-yellow);
            transform: scale(1.02);
        }
        .production-card h4 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .production-card h4::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--primary-color);
            display: inline-block;
        }
        .production-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* 7. 全行业解决方案 */
        .solutions-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .solutions-tabs-nav {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        .tab-btn {
            background-color: var(--bg-light);
            border: 1px solid var(--accent-border);
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }
        .tab-btn.active, .tab-btn:hover {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: var(--secondary-color);
        }
        .solutions-tabs-content {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 35px;
            border: 1px solid var(--accent-border);
        }
        .tab-pane {
            display: none;
        }
        .tab-pane.active {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .solution-info h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 15px;
        }
        .solution-info p {
            font-size: 0.95rem;
            color: var(--text-main);
            margin-bottom: 20px;
        }
        .solution-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .feat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            font-weight: 600;
        }
        .solution-card-right {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 24px;
            border-left: 5px solid var(--primary-color);
            box-shadow: var(--shadow-sm);
        }

        /* 8. 全国服务网络 */
        .network-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .network-box {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .network-map-placeholder {
            background: radial-gradient(circle, #fcf8e3 10%, #f7f0cf 40%, #ffffff 80%);
            border: 2px dashed var(--primary-color);
            height: 300px;
            border-radius: var(--border-radius);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .network-node {
            position: absolute;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            padding: 4px 10px;
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: 4px;
            box-shadow: var(--shadow-sm);
        }
        .node-hz { top: 60%; left: 65%; }
        .node-bj { top: 25%; left: 55%; }
        .node-sh { top: 55%; left: 70%; }
        .node-sz { top: 80%; left: 60%; }
        .node-cd { top: 65%; left: 40%; }

        /* 9. 标准化 AIGC 流程 */
        .flow-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            position: relative;
        }
        .flow-card {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 30px 20px;
            text-align: center;
            border-bottom: 4px solid var(--primary-color);
            position: relative;
        }
        .flow-card .step-num {
            width: 40px;
            height: 40px;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            font-weight: 800;
            font-size: 1.2rem;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .flow-card h4 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .flow-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 10. 技术标准 */
        .standards-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .standard-card {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 30px;
            border-top: 4px solid var(--primary-color);
            box-shadow: var(--shadow-sm);
        }
        .standard-card h4 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .standard-card ul li {
            font-size: 0.88rem;
            color: var(--text-main);
            margin-bottom: 8px;
            padding-left: 14px;
            position: relative;
        }
        .standard-card ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary-hover);
            font-weight: 700;
        }

        /* 11. 客户案例中心 - 包含指定展示图与素材图 */
        .cases-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-bottom: 40px;
        }
        .gallery-card {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            overflow: hidden;
            border: 1px solid var(--accent-border);
            transition: all 0.3s;
        }
        .gallery-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .gallery-img-wrapper {
            width: 100%;
            overflow: hidden;
            background-color: #eee;
            aspect-ratio: 16/10;
        }
        .gallery-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .gallery-card:hover img {
            transform: scale(1.05);
        }
        .gallery-info {
            padding: 20px;
        }
        .gallery-info .case-tag {
            display: inline-block;
            background-color: var(--primary-color);
            color: var(--secondary-color);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: 4px;
            margin-bottom: 10px;
        }
        .gallery-info h4 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .gallery-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 12. 对比评测 - 9.9分 */
        .evaluation-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .eval-rating-box {
            background-color: var(--secondary-color);
            color: #fff;
            border-radius: var(--border-radius);
            padding: 30px;
            text-align: center;
            margin-bottom: 40px;
            box-shadow: var(--shadow-sm);
        }
        .eval-stars {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin-bottom: 8px;
        }
        .eval-score {
            font-size: 3rem;
            font-weight: 900;
            color: var(--primary-color);
            line-height: 1;
        }
        .eval-score span {
            font-size: 1.2rem;
            color: #ccc;
        }
        .eval-rating-box p {
            font-size: 0.95rem;
            color: #ddd;
            margin-top: 10px;
        }
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            background-color: var(--bg-white);
        }
        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }
        .eval-table th, .eval-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--accent-border);
            font-size: 0.9rem;
        }
        .eval-table th {
            background-color: var(--secondary-color);
            color: #fff;
            font-weight: 700;
        }
        .eval-table td strong {
            color: var(--text-dark);
        }
        .eval-table tr:hover td {
            background-color: #fffde6;
        }
        .eval-table .highlight-col {
            background-color: rgba(255, 210, 0, 0.05);
            font-weight: 600;
        }

        /* 13. 智能需求匹配与表单 */
        .match-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .match-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: flex-start;
        }
        .match-form-box {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 40px;
            border: 1px solid var(--accent-border);
            box-shadow: var(--shadow-sm);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--accent-border);
            background-color: var(--bg-white);
            border-radius: 8px;
            color: var(--text-dark);
            font-size: 0.9rem;
            transition: all 0.3s;
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.2);
        }
        .btn-block {
            width: 100%;
            justify-content: center;
        }

        /* 14. Token比价参考 */
        .token-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .price-card {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 30px;
            text-align: center;
            border: 1px solid var(--accent-border);
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        .price-card.popular {
            border: 2px solid var(--primary-color);
            box-shadow: var(--shadow-yellow);
        }
        .badge-popular {
            position: absolute;
            top: 15px;
            right: -30px;
            background-color: var(--primary-color);
            color: var(--secondary-color);
            font-size: 0.75rem;
            font-weight: 800;
            padding: 4px 30px;
            transform: rotate(45deg);
        }
        .price-card h3 {
            font-size: 1.25rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }
        .price-num {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--secondary-color);
            margin-bottom: 20px;
        }
        .price-num span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .price-features {
            margin-bottom: 24px;
            text-align: left;
        }
        .price-features li {
            font-size: 0.88rem;
            margin-bottom: 10px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 15. 职业技术培训 & 人工智能培训 */
        .training-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .training-card {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 24px;
            border-left: 4px solid var(--secondary-color);
            transition: all 0.3s;
        }
        .training-card:hover {
            border-left-color: var(--primary-color);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }
        .training-card h4 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .training-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 16. 帮助中心与常见问题自助排查 */
        .help-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .accordion-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .accordion-item {
            background-color: var(--bg-white);
            margin-bottom: 12px;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .accordion-header {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background-color 0.2s;
        }
        .accordion-header:hover {
            background-color: #fffdf0;
        }
        .accordion-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-white);
            border-top: 1px solid transparent;
        }
        .accordion-content p {
            padding: 18px 24px;
            color: var(--text-main);
            font-size: 0.9rem;
            margin: 0;
        }
        .accordion-item.active .accordion-icon {
            transform: rotate(45deg);
        }
        .accordion-item.active .accordion-content {
            border-top-color: var(--accent-border);
        }

        /* 17. AI 术语百科与标签云 */
        .glossary-section {
            padding: 60px 0;
            background-color: var(--bg-white);
        }
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .glossary-card {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 24px;
        }
        .glossary-card h4 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .glossary-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* 18. 用户评论 */
        .reviews-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }
        .review-card {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border-top: 4px solid var(--primary-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-text {
            font-style: italic;
            color: var(--text-main);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .author-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: var(--secondary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
        }
        .author-info h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-dark);
        }
        .author-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 19. 行业资讯 / 知识库 - 挂接最新文章 */
        .news-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .news-card {
            background-color: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 24px;
            border: 1px solid var(--accent-border);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.3s;
        }
        .news-card:hover {
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .news-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-card h4 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .news-link {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary-hover);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 20. 联系我们与加盟代理 */
        .contact-section {
            padding: 90px 0;
            background-color: var(--bg-light);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
            align-items: flex-start;
        }
        .contact-info-panel {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }
        .contact-info-panel h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--text-dark);
        }
        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
        }
        .contact-item-icon {
            width: 40px;
            height: 40px;
            background-color: rgba(255, 210, 0, 0.15);
            color: var(--primary-hover);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .contact-item-text h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .contact-item-text p {
            font-size: 0.9rem;
            color: var(--text-main);
        }
        .kefu-qrcode-box {
            margin-top: 30px;
            border-top: 1px solid var(--accent-border);
            padding-top: 30px;
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .kefu-qrcode-box img {
            width: 120px;
            height: 120px;
            border: 1px solid var(--accent-border);
            border-radius: 8px;
        }
        .agent-badge-box {
            background-color: #fffde6;
            border: 1px solid var(--primary-color);
            padding: 24px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
        }
        .agent-badge-box h4 {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 8px;
            font-weight: 800;
        }
        .agent-badge-box p {
            font-size: 0.88rem;
            color: var(--text-main);
        }

        /* 21. 友情链接 */
        .friendly-links-section {
            background-color: var(--bg-white);
            border-top: 1px solid var(--accent-border);
            padding: 30px 0;
        }
        .friendly-links-wrapper {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 15px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .friendly-links-wrapper a {
            color: var(--text-muted);
            margin-right: 15px;
        }
        .friendly-links-wrapper a:hover {
            color: var(--primary-hover);
        }

        /* 页脚 */
        footer {
            background-color: var(--secondary-color);
            color: #E2E8F0;
            padding: 60px 0 30px 0;
            font-size: 0.88rem;
            border-top: 3px solid var(--primary-color);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo-desc p {
            margin-top: 15px;
            color: #A0AEC0;
            font-size: 0.8rem;
            line-height: 1.6;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 20px;
            font-size: 0.95rem;
            position: relative;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -6px;
            width: 30px;
            height: 2px;
            background-color: var(--primary-color);
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul li a {
            color: #A0AEC0;
            font-size: 0.82rem;
        }
        .footer-col ul li a:hover {
            color: var(--primary-color);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid #2D3748;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.8rem;
            color: #A0AEC0;
        }

        /* 浮动工具与客服 */
        .float-widget {
            position: fixed;
            right: 24px;
            bottom: 40px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .widget-item {
            width: 50px;
            height: 50px;
            background-color: var(--bg-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
            border: 2px solid var(--primary-color);
        }
        .widget-item:hover {
            background-color: var(--primary-color);
            transform: scale(1.05);
        }
        .widget-qrcode {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: var(--bg-white);
            border: 2px solid var(--primary-color);
            padding: 10px;
            border-radius: 8px;
            box-shadow: var(--shadow-md);
            display: none;
            width: 140px;
        }
        .widget-qrcode img {
            width: 100%;
            height: auto;
        }
        .widget-item:hover .widget-qrcode {
            display: block;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .about-grid, .tab-pane.active, .network-box, .match-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--accent-border);
                box-shadow: var(--shadow-md);
                gap: 10px;
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-highlights {
                gap: 15px;
            }
        }