:root {
            --primary: #FFD600;      /* 鲜黄耀眼风主色 */
            --primary-hover: #E5C000;
            --primary-light: #FFFBE6;
            --dark-bg: #111827;      /* 耀眼风必配的深灰/黑背景，用于强对比区 */
            --light-bg: #F9FAFB;     /* 页面主背景，浅灰/白 */
            --card-bg: #FFFFFF;
            --text-dark: #1F2937;    /* 默认深色正文 */
            --text-light: #F9FAFB;   /* 深底区域使用的浅色文字 */
            --text-gray: #6B7280;
            --border-color: #E5E7EB;
            --container-width: 1200px;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }

        /* 基础样式复位 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--text-dark);
            background-color: var(--light-bg);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 外层容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* 统一标题样式 */
        .section-title {
            text-align: center;
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 1rem;
            position: relative;
        }
        .section-title span {
            background: linear-gradient(180deg, transparent 60%, var(--primary) 60%);
            padding: 0 4px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-gray);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 3rem auto;
        }

        /* 头部与导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(8px);
            border-bottom: 2px solid var(--primary);
        }

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

        .logo-container {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            height: 45px;
            width: auto;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            align-items: center;
        }

        .nav-link {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            position: relative;
        }

        .nav-link:hover, .nav-link.active {
            color: #000;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--primary);
            transition: width 0.3s ease;
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.6rem 1.25rem;
            font-weight: 700;
            border-radius: 6px;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: 2px solid transparent;
            font-size: 0.95rem;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--text-dark);
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background-color: var(--text-dark);
            color: var(--primary);
            border-color: var(--text-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--text-dark);
            border-color: var(--text-dark);
        }

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

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: space-between;
            width: 24px;
            height: 18px;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: 1001;
        }

        .menu-toggle span {
            width: 100%;
            height: 3px;
            background-color: var(--text-dark);
            border-radius: 3px;
            transition: all 0.3s ease;
        }

        /* Section 布局规范 */
        section {
            padding: 5rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* 1. Hero 首屏 - 纯文字/几何结构设计 (禁止任何图片) */
        .hero-section {
            background: linear-gradient(135deg, #FFFBE6 0%, #FFFFFF 100%);
            padding: 7rem 0 6rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
            border-bottom: 3px solid var(--primary);
        }

        /* 装饰背景几何体 */
        .hero-bg-shapes {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .shape {
            position: absolute;
            background-color: var(--primary);
            opacity: 0.15;
            border-radius: 50%;
        }

        .shape-1 { width: 300px; height: 300px; top: -100px; right: -50px; }
        .shape-2 { width: 200px; height: 200px; bottom: -50px; left: -50px; }
        .shape-3 { width: 100px; height: 100px; top: 40%; left: 10%; border-radius: 0; transform: rotate(45deg); background-color: var(--primary); }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-block;
            background-color: var(--text-dark);
            color: var(--primary);
            font-size: 0.9rem;
            font-weight: 800;
            padding: 0.4rem 1rem;
            border-radius: 50px;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero-title {
            font-size: 3.5rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 1.5rem;
        }

        .hero-title span {
            color: #000;
            background: linear-gradient(120deg, var(--primary) 0%, var(--primary) 100%);
            background-repeat: no-repeat;
            background-size: 100% 40%;
            background-position: 0 80%;
        }

        .hero-description {
            font-size: 1.25rem;
            color: var(--text-gray);
            margin-bottom: 2.5rem;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-bottom: 3.5rem;
        }

        .hero-btn-main {
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            border-radius: 8px;
            box-shadow: 0 4px 14px rgba(255, 214, 0, 0.4);
        }

        .hero-btn-sub {
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            border-radius: 8px;
        }

        /* 亮点横条 */
        .hero-highlights {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .highlight-item {
            background-color: var(--card-bg);
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow-md);
            border-top: 4px solid var(--primary);
            transition: transform 0.3s ease;
        }

        .highlight-item:hover {
            transform: translateY(-5px);
        }

        .highlight-num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-dark);
            margin-bottom: 0.25rem;
        }
        .highlight-num span {
            color: var(--primary-hover);
        }

        .highlight-title {
            font-size: 0.95rem;
            color: var(--text-gray);
            font-weight: 600;
        }

        /* 2. 关于我们 */
        .about-section {
            background-color: var(--card-bg);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1.2rem;
            color: var(--text-dark);
        }

        .about-text p {
            color: var(--text-gray);
            font-size: 1.05rem;
            margin-bottom: 1.5rem;
            line-height: 1.8;
        }

        .about-features {
            list-style: none;
        }

        .about-features li {
            position: relative;
            padding-left: 1.8rem;
            margin-bottom: 0.8rem;
            font-weight: 600;
        }

        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--text-dark);
            background-color: var(--primary);
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 900;
        }

        .about-visual {
            background-color: var(--primary-light);
            border: 4px solid var(--text-dark);
            border-radius: 12px;
            padding: 2.5rem;
            position: relative;
            box-shadow: 8px 8px 0px var(--text-dark);
        }

        .about-visual::after {
            content: "";
            position: absolute;
            top: -15px;
            right: -15px;
            width: 30px;
            height: 30px;
            background-color: var(--primary);
            border: 3px solid var(--text-dark);
            transform: rotate(45deg);
        }

        .visual-stat-item {
            margin-bottom: 1.5rem;
        }
        .visual-stat-item:last-child {
            margin-bottom: 0;
        }

        .stat-label {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.5rem;
            display: flex;
            justify-content: space-between;
        }

        .stat-bar-container {
            width: 100%;
            height: 10px;
            background-color: var(--border-color);
            border-radius: 50px;
            overflow: hidden;
            border: 1px solid var(--text-dark);
        }

        .stat-bar {
            height: 100%;
            background-color: var(--text-dark);
            border-radius: 50px;
        }

        /* 3. AIGC 服务能力卡片 */
        .services-section {
            background-color: var(--light-bg);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .service-card {
            background-color: var(--card-bg);
            border: 2px solid var(--border-color);
            border-radius: 10px;
            padding: 2.5rem;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--text-dark);
            box-shadow: var(--shadow-lg);
        }

        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background-color: var(--primary);
            transition: height 0.3s ease;
        }

        .service-card:hover::before {
            height: 10px;
        }

        .service-icon {
            background-color: var(--primary);
            color: var(--text-dark);
            width: 60px;
            height: 60px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            border: 2px solid var(--text-dark);
            box-shadow: 3px 3px 0 var(--text-dark);
        }

        .service-card h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .service-card p {
            color: var(--text-gray);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .service-tag {
            background-color: var(--light-bg);
            color: var(--text-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.6rem;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        /* 4. 一站式制作场景 & 模型聚合区 */
        .one-stop-section {
            background-color: var(--card-bg);
        }

        .models-container {
            margin-top: 3.5rem;
            background-color: var(--dark-bg);
            border-radius: 12px;
            padding: 3rem 2rem;
            color: var(--text-light);
            text-align: center;
        }

        .models-title {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--primary);
        }

        .models-subtitle {
            color: #9CA3AF;
            font-size: 1rem;
            max-width: 800px;
            margin: 0 auto 2rem auto;
        }

        .models-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.8rem;
        }

        .model-chip {
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all 0.2s ease;
        }

        .model-chip:hover {
            background-color: var(--primary);
            color: var(--text-dark);
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 5. 行业解决方案 */
        .solutions-section {
            background-color: var(--light-bg);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .solution-card {
            background-color: var(--card-bg);
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

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

        .solution-content {
            padding: 2rem;
        }

        .solution-icon {
            font-size: 2rem;
            margin-bottom: 1rem;
            display: block;
        }

        .solution-title {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
        }

        .solution-desc {
            color: var(--text-gray);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }

        .solution-link {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 700;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .solution-link:hover {
            text-decoration: underline;
        }

        /* 6. 全国服务网络 */
        .network-section {
            background-color: var(--card-bg);
            position: relative;
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 3.5rem;
            align-items: center;
        }

        .network-map-placeholder {
            background-color: var(--primary-light);
            border: 3px solid var(--text-dark);
            border-radius: 12px;
            padding: 3rem 2rem;
            text-align: center;
            box-shadow: 6px 6px 0 var(--text-dark);
            position: relative;
        }

        .network-dots {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }

        .network-dot {
            background: var(--card-bg);
            border: 1px solid var(--text-dark);
            padding: 0.4rem 1rem;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 700;
            box-shadow: 2px 2px 0 var(--text-dark);
        }

        /* 7. 标准化流程 */
        .steps-section {
            background-color: var(--light-bg);
        }

        .steps-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }

        .step-node {
            background-color: var(--card-bg);
            border: 2px solid var(--border-color);
            border-radius: 8px;
            padding: 2rem 1.5rem;
            position: relative;
            z-index: 2;
            transition: all 0.3s ease;
        }

        .step-node:hover {
            border-color: var(--text-dark);
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            background-color: var(--primary);
            color: var(--text-dark);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.2rem;
            border: 2px solid var(--text-dark);
            margin-bottom: 1.2rem;
        }

        .step-title {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
        }

        .step-desc {
            font-size: 0.9rem;
            color: var(--text-gray);
        }

        /* 8. 客户案例中心 */
        .cases-section {
            background-color: var(--card-bg);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .case-card {
            border: 2px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            background-color: var(--card-bg);
            transition: all 0.3s ease;
        }

        .case-card:hover {
            border-color: var(--text-dark);
            box-shadow: var(--shadow-lg);
        }

        .case-image-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background-color: var(--light-bg);
            border-bottom: 2px solid var(--border-color);
        }

        .case-image-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .case-info {
            padding: 1.5rem;
        }

        .case-tag {
            font-size: 0.75rem;
            font-weight: 700;
            background-color: var(--primary-light);
            color: var(--text-dark);
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary);
        }

        .case-title {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 0.6rem;
        }

        .case-desc {
            font-size: 0.9rem;
            color: var(--text-gray);
        }

        /* 9. 对比评测 - 突出 9.9 高分与五星推荐 */
        .eval-section {
            background-color: var(--dark-bg);
            color: var(--text-light);
            border-bottom: 3px solid var(--primary);
        }

        .eval-grid {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 3.5rem;
            align-items: center;
        }

        .eval-score-card {
            background-color: rgba(255, 255, 255, 0.05);
            border: 3px solid var(--primary);
            border-radius: 12px;
            padding: 3rem 2rem;
            text-align: center;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }

        .eval-stars {
            color: var(--primary);
            font-size: 1.8rem;
            margin-bottom: 1rem;
        }

        .eval-score-big {
            font-size: 5rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 0.5rem;
        }

        .eval-score-label {
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .eval-score-sub {
            color: #9CA3AF;
            font-size: 0.85rem;
            margin-top: 0.5rem;
        }

        .eval-table-container {
            overflow-x: auto;
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .eval-table th, .eval-table td {
            padding: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .eval-table th {
            font-weight: 800;
            color: var(--primary);
            font-size: 1.05rem;
        }

        .eval-table td {
            font-size: 0.95rem;
        }

        .eval-highlight {
            color: var(--primary);
            font-weight: 700;
        }

        /* 10. 智能需求匹配 (表单板块) */
        .match-section {
            background-color: var(--light-bg);
        }

        .match-form-container {
            max-width: 700px;
            margin: 0 auto;
            background-color: var(--card-bg);
            border: 3px solid var(--text-dark);
            border-radius: 12px;
            padding: 3rem;
            box-shadow: 8px 8px 0px var(--text-dark);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .form-group-full {
            grid-column: span 2;
        }

        .form-label {
            display: block;
            font-weight: 700;
            margin-bottom: 0.5rem;
            font-size: 0.95rem;
        }

        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            background-color: var(--light-bg);
            transition: all 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--text-dark);
            background-color: #fff;
        }

        .btn-submit {
            width: 100%;
            padding: 1rem;
            font-size: 1.1rem;
            margin-top: 1rem;
        }

        /* 11. Token 比价 */
        .token-section {
            background-color: var(--card-bg);
        }

        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .token-card {
            border: 2px solid var(--border-color);
            border-radius: 10px;
            padding: 2rem;
            text-align: center;
            transition: all 0.3s ease;
            position: relative;
        }

        .token-card.recommended {
            border-color: var(--text-dark);
            background-color: var(--primary-light);
            box-shadow: 4px 4px 0 var(--text-dark);
        }

        .token-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--text-dark);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 800;
            padding: 0.25rem 0.8rem;
            border-radius: 50px;
        }

        .token-name {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }

        .token-pricing {
            margin: 1.5rem 0;
        }

        .token-price-num {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--text-dark);
        }

        .token-price-unit {
            color: var(--text-gray);
            font-size: 0.9rem;
        }

        .token-features-list {
            list-style: none;
            text-align: left;
            margin-bottom: 2rem;
        }

        .token-features-list li {
            padding: 0.5rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
        }

        /* 12 & 13. 职业技术培训 & 人工智能培训 (工信部证书) */
        .training-section {
            background-color: var(--light-bg);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
        }

        .course-card {
            background-color: var(--card-bg);
            border: 2px solid var(--border-color);
            border-radius: 8px;
            padding: 1.5rem;
            text-align: center;
            transition: all 0.3s ease;
        }

        .course-card:hover {
            border-color: var(--text-dark);
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .course-icon {
            font-size: 2.20rem;
            margin-bottom: 1rem;
            display: block;
        }

        .course-title {
            font-size: 1rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
            line-height: 1.4;
        }

        .course-badge {
            background-color: var(--primary);
            color: var(--text-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }

        /* 14 & 15. 常见用户问题 FAQ */
        .faq-section {
            background-color: var(--card-bg);
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 1.2rem 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.1rem;
            user-select: none;
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--primary-hover);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-gray);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .faq-item.active .faq-answer {
            max-height: 250px;
            padding-top: 1rem;
        }

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

        /* 16. AI 术语百科 */
        .wiki-section {
            background-color: var(--light-bg);
        }

        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .wiki-card {
            background-color: var(--card-bg);
            border-left: 4px solid var(--primary);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            border-radius: 0 8px 8px 0;
        }

        .wiki-term {
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }

        .wiki-definition {
            font-size: 0.85rem;
            color: var(--text-gray);
            line-height: 1.5;
        }

        /* 17. 行业资讯 / 知识库 (最新文章) */
        .news-section {
            background-color: var(--card-bg);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.5rem;
        }

        .news-card {
            background-color: var(--light-bg);
            border-radius: 8px;
            padding: 1.5rem;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            height: 100%;
        }

        .news-card:hover {
            border-color: var(--text-dark);
            transform: translateY(-4px);
        }

        .news-meta {
            font-size: 0.75rem;
            color: var(--text-gray);
            margin-bottom: 0.8rem;
        }

        .news-title-link {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-dark);
            text-decoration: none;
            line-height: 1.4;
            display: block;
            margin-bottom: 1rem;
        }

        .news-title-link:hover {
            color: var(--primary-hover);
        }

        .news-more {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-dark);
            text-decoration: none;
        }

        /* 18. 联系我们 & 19. 加盟代理 (双列紧凑布局) */
        .contact-section {
            background-color: var(--light-bg);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
        }

        .contact-info-panel {
            background-color: var(--card-bg);
            border: 3px solid var(--text-dark);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 6px 6px 0 var(--text-dark);
        }

        .agent-panel {
            background-color: var(--primary-light);
            border: 3px solid var(--text-dark);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 6px 6px 0 var(--text-dark);
        }

        .panel-title {
            font-size: 1.5rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--text-dark);
        }

        .contact-list {
            list-style: none;
        }

        .contact-list li {
            margin-bottom: 1.2rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .contact-label {
            font-weight: 800;
            min-width: 80px;
        }

        .contact-value {
            color: var(--text-dark);
        }

        .agent-list {
            list-style: none;
            margin-bottom: 1.5rem;
        }

        .agent-list li {
            margin-bottom: 0.8rem;
            position: relative;
            padding-left: 1.5rem;
            font-weight: 600;
        }

        .agent-list li::before {
            content: "✦";
            position: absolute;
            left: 0;
            color: var(--text-dark);
        }

        /* 用户评论区 (6 条评论) */
        .testimonials-section {
            background-color: var(--card-bg);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .testimonial-card {
            background-color: var(--light-bg);
            border-radius: 8px;
            padding: 2rem;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .testimonial-text {
            font-style: italic;
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .author-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            border: 2px solid var(--text-dark);
        }

        .author-info h4 {
            font-size: 0.95rem;
            font-weight: 800;
        }

        .author-info p {
            font-size: 0.8rem;
            color: var(--text-gray);
        }

        /* 友情链接与底部导航区 */
        .footer-links-section {
            background-color: var(--light-bg);
            padding: 3rem 0;
            border-top: 1px solid var(--border-color);
        }

        .links-title {
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }

        .links-flex {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
        }

        .links-flex a {
            color: var(--text-gray);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }

        .links-flex a:hover {
            color: var(--text-dark);
            text-decoration: underline;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 4rem 0 2rem 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 3.5rem;
            margin-bottom: 3rem;
        }

        .footer-brand h3 {
            color: var(--primary);
            font-size: 1.6rem;
            font-weight: 900;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: #9CA3AF;
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            max-width: 400px;
        }

        .footer-title {
            color: #FFFFFF;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 1.2rem;
            position: relative;
        }

        .footer-menu {
            list-style: none;
        }

        .footer-menu li {
            margin-bottom: 0.8rem;
        }

        .footer-menu a {
            color: #9CA3AF;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }

        .footer-menu a:hover {
            color: var(--primary);
        }

        .footer-qrcode {
            text-align: center;
        }

        .footer-qrcode img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            border: 3px solid var(--primary);
            margin-bottom: 0.5rem;
        }

        .footer-qrcode p {
            font-size: 0.8rem;
            color: #9CA3AF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #9CA3AF;
        }

        .footer-bottom-links a {
            color: #9CA3AF;
            text-decoration: none;
            margin-left: 1.5rem;
        }

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

        /* 浮动客服 */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            background-color: var(--primary);
            color: var(--text-dark);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            border: 2px solid var(--text-dark);
            font-weight: 900;
            font-size: 1.2rem;
            position: relative;
            transition: all 0.3s ease;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: white;
            border: 2px solid var(--text-dark);
            border-radius: 8px;
            padding: 1rem;
            box-shadow: var(--shadow-lg);
            display: none;
            text-align: center;
            width: 150px;
        }

        .qr-popover img {
            width: 100%;
            height: auto;
            margin-bottom: 0.5rem;
        }

        .qr-popover p {
            font-size: 0.75rem;
            color: var(--text-dark);
            font-weight: 700;
        }

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

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .hero-title { font-size: 2.8rem; }
            .solutions-grid { grid-template-columns: repeat(2, 1fr); }
            .training-grid { grid-template-columns: repeat(3, 1fr); }
            .wiki-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: repeat(3, 1fr); }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: white;
                flex-direction: column;
                padding: 2rem;
                gap: 1.5rem;
                border-bottom: 2px solid var(--primary);
                box-shadow: var(--shadow-md);
                display: none;
            }

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

            .nav-actions {
                display: none;
            }

            .hero-title { font-size: 2.2rem; }
            .hero-highlights { grid-template-columns: repeat(2, 1fr); }
            .about-grid { grid-template-columns: 1fr; gap: 2rem; }
            .steps-timeline { grid-template-columns: repeat(2, 1fr); }
            .cases-grid { grid-template-columns: 1fr; }
            .eval-grid { grid-template-columns: 1fr; }
            .form-grid { grid-template-columns: 1fr; }
            .form-group-full { grid-column: span 1; }
            .token-grid { grid-template-columns: 1fr; }
            .training-grid { grid-template-columns: repeat(2, 1fr); }
            .testimonials-grid { grid-template-columns: 1fr; }
            .contact-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
            .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
            .footer-bottom-links a { margin: 0 0.75rem; }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 480px) {
            .hero-highlights { grid-template-columns: 1fr; }
            .steps-timeline { grid-template-columns: 1fr; }
            .training-grid { grid-template-columns: 1fr; }
            .wiki-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
        }