/* 极致鲜亮风 + 浅色底 变量定义 */
        :root {
            --primary: #2563eb;
            --primary-light: #eff6ff;
            --primary-gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
            --accent: #d946ef;
            --accent-light: #fdf4ff;
            --accent-gradient: linear-gradient(135deg, #d946ef 0%, #a855f7 100%);
            --text-dark: #0f172a;
            --text-muted: #475569;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -4px rgba(0,0,0,0.05);
            --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.04);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

        /* 基础样式重置 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-dark);
        }
        body {
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        li {
            list-style: none;
        }

        /* 全局统一布局容器 */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 极致鲜亮辅助背景 */
        .glow-bg {
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, rgba(217,70,239,0.05) 70%);
            filter: blur(40px);
            z-index: -1;
            pointer-events: none;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .nav-logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .nav-menu {
            display: flex;
            gap: 20px;
        }
        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 6px;
        }
        .nav-menu a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .nav-btn-box {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-outline {
            border: 1.5px solid var(--primary);
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
        }
        .btn-outline:hover {
            background-color: var(--primary-light);
        }
        .btn-filled {
            background: var(--primary-gradient);
            color: white !important;
            padding: 9px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 10px rgba(37,99,235,0.2);
        }
        .btn-filled:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: none;
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text-dark);
            transition: var(--transition);
        }

        /* 模块标题通用 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 4px 12px;
            border-radius: 50px;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 1. Hero首屏 - 极致鲜亮纯代码无图方案 */
        .hero-section {
            position: relative;
            padding: 100px 0 80px;
            background: radial-gradient(circle at top right, #fdf4ff 0%, #eff6ff 100%);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .hero-content {
            z-index: 10;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }
        .hero-badge span {
            color: var(--accent);
        }
        .hero-title {
            font-size: 46px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 20px;
        }
        .hero-title span {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }
        .hero-actions .btn-filled {
            padding: 14px 28px;
            font-size: 16px;
        }
        .hero-actions .btn-outline {
            padding: 13px 26px;
            font-size: 16px;
            background-color: white;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            border-top: 1px solid var(--border-color);
            padding-top: 30px;
        }
        .stat-item h4 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
        }
        .stat-item p {
            font-size: 12px;
            color: var(--text-muted);
        }
        /* 右侧视觉纯代码卡片组合 */
        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
        }
        .visual-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 18px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .visual-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .vc-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
        }
        .vc-badge {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 11px;
        }
        .vc-body {
            font-size: 14px;
            font-weight: 700;
        }
        .vc-bar-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 10px;
        }
        .vc-bar {
            height: 6px;
            border-radius: 3px;
            background-color: var(--border-color);
            overflow: hidden;
        }
        .vc-bar-inner {
            height: 100%;
            background: var(--primary-gradient);
        }

        /* 2. 关于我们与平台介绍 */
        .section-padding {
            padding: 80px 0;
            position: relative;
        }
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }
        .af-item {
            background: white;
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .af-icon {
            font-size: 24px;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .af-title {
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 6px;
        }
        .af-desc {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 3. 全平台AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .service-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary-gradient);
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .service-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .service-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .model-tag {
            font-size: 11px;
            background-color: var(--bg-light);
            color: var(--text-muted);
            padding: 2px 8px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        /* 4. 一站式AIGC制作 & 5. 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .solution-card-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .solution-row {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
            display: flex;
            gap: 16px;
            transition: var(--transition);
        }
        .solution-row:hover {
            transform: translateX(5px);
            border-color: var(--primary);
        }
        .sol-num {
            font-size: 20px;
            font-weight: 800;
            color: var(--accent);
        }
        .sol-content h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .sol-content p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .solution-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .showcase-img-box {
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .showcase-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
            display: block;
        }
        .showcase-img-box:hover img {
            transform: scale(1.05);
        }

        /* 6. 全国服务网络 & 7. 标准化AIGC流程 & 8. 技术标准 */
        .network-section {
            background-color: var(--bg-white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            background: var(--bg-light);
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }
        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-weight: 700;
        }
        .step-title {
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 9. 客户案例中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background-color: var(--bg-white);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .case-img {
            height: 200px;
            overflow: hidden;
            position: relative;
            background-color: var(--bg-light);
        }
        .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: rgba(255,255,255,0.95);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 700;
            color: var(--primary);
        }
        .case-body {
            padding: 24px;
        }
        .case-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .case-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 10. 对比评测 */
        .eval-section {
            background: linear-gradient(180deg, var(--bg-light) 0%, #fff 100%);
        }
        .eval-card-large {
            background-color: var(--bg-white);
            border-radius: 20px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-lg);
            padding: 40px;
            margin-top: 30px;
        }
        .eval-score-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 30px;
            margin-bottom: 30px;
        }
        .score-left {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .score-big {
            font-size: 64px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }
        .score-meta h5 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .score-stars {
            color: #f59e0b;
            font-size: 16px;
        }
        .eval-table-wrapper {
            overflow-x: auto;
        }
        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        .eval-table th, .eval-table td {
            padding: 16px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }
        .eval-table th {
            font-weight: 700;
            background-color: var(--bg-light);
        }
        .eval-table td strong {
            color: var(--primary);
        }

        /* 12. Token比价参考 */
        .price-section {
            background-color: var(--bg-white);
        }
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 30px;
        }
        .price-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .price-card.featured {
            background-color: var(--bg-white);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }
        .price-card.featured::before {
            content: "最佳性价比";
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent-gradient);
            color: white;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
        }
        .price-title {
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 10px;
        }
        .price-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 20px;
        }
        .price-value span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
        }
        .price-features {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 24px;
            text-align: left;
            font-size: 13px;
        }
        .price-features li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .price-features li::before {
            content: "✓";
            color: var(--primary);
            font-weight: bold;
        }

        /* 13. 职业技术培训 & 14. 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            margin-top: 30px;
        }
        .train-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }
        .train-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
        }
        .train-icon {
            font-size: 32px;
            margin-bottom: 16px;
        }
        .train-title {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
        }
        .train-badge {
            display: inline-block;
            font-size: 11px;
            color: var(--accent);
            background-color: var(--accent-light);
            padding: 2px 8px;
            border-radius: 4px;
        }

        /* 11. 智能需求匹配 (表单) & 20. 联系我们 & 21. 加盟代理 */
        .contact-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 40px;
            background-color: var(--bg-white);
            border-radius: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
        }
        .contact-info-panel {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            color: white;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .info-header h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .info-header p {
            font-size: 14px;
            color: #94a3b8;
        }
        .info-list {
            margin: 40px 0;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }
        .ii-icon {
            font-size: 18px;
            color: var(--primary);
        }
        .ii-text h5 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .ii-text p {
            font-size: 13px;
            color: #94a3b8;
        }
        .qr-box {
            display: flex;
            align-items: center;
            gap: 16px;
            background-color: rgba(255,255,255,0.05);
            padding: 16px;
            border-radius: 12px;
        }
        .qr-box img {
            width: 70px;
            height: 70px;
            border-radius: 6px;
            object-fit: cover;
        }
        .qr-text {
            font-size: 12px;
            color: #cbd5e1;
        }
        .contact-form-panel {
            padding: 40px;
        }
        .contact-form-panel h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 24px;
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-group-full {
            grid-column: span 2;
        }
        .form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
        }
        .form-control {
            border: 1px solid var(--border-color);
            background-color: var(--bg-light);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 14px;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: white;
            box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
        }
        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }
        .form-submit-btn {
            background: var(--primary-gradient);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
        }
        .form-submit-btn:hover {
            opacity: 0.95;
            transform: translateY(-1px);
        }

        /* 15. 帮助中心 & 16. FAQ & 17. 常见问题排查 & 18. AI术语百科 */
        .faq-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 15px;
            user-select: none;
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            font-size: 14px;
            color: var(--text-muted);
            border-top: 0px solid var(--border-color);
        }
        .faq-item.active .faq-answer {
            padding: 18px 24px;
            border-top-width: 1px;
        }
        .faq-icon-arrow {
            transition: var(--transition);
        }
        .faq-item.active .faq-icon-arrow {
            transform: rotate(180deg);
        }
        .help-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .help-box {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
        }
        .help-box h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            border-bottom: 1.5px solid var(--primary);
            padding-bottom: 8px;
            display: inline-block;
        }
        .help-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .help-link-item {
            font-size: 13px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .help-link-item span {
            color: var(--text-muted);
        }
        .help-link-item a:hover {
            color: var(--primary);
        }

        /* 19. 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .news-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.5;
        }
        .news-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 用户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 30px;
        }
        .comment-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .comment-content {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-style: italic;
        }
        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .avatar-placeholder {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .cu-info h5 {
            font-size: 13px;
            font-weight: 700;
        }
        .cu-info p {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* 友情链接与底部导航 */
        .footer-links-section {
            background-color: var(--bg-white);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-about h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .footer-about p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .footer-menu-col h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-dark);
        }
        .footer-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-links-list a {
            font-size: 13px;
            color: var(--text-muted);
            background-color: var(--bg-light);
            padding: 6px 12px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }
        .footer-links-list a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
            border-color: var(--primary);
        }
        .footer-contact h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-contact p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-copyright {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* 悬浮客服面板 */
        .sticky-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
        }
        .sticky-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--bg-white);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }
        .sticky-btn:hover {
            transform: scale(1.05);
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .sticky-btn svg {
            width: 22px;
            height: 22px;
            fill: currentColor;
        }
        .sticky-qr-panel {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 16px;
            box-shadow: var(--shadow-lg);
            display: none;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            width: 160px;
        }
        .sticky-qr-panel img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border-radius: 6px;
        }
        .sticky-qr-panel span {
            font-size: 11px;
            color: var(--text-dark);
            font-weight: 700;
        }
        .sticky-btn:hover .sticky-qr-panel {
            display: flex;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .hero-grid, .about-layout, .solutions-grid, .contact-layout, .faq-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-visual {
                order: -1;
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .news-grid, .comments-grid, .cases-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-flow {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: var(--shadow-lg);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-title {
                font-size: 32px;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid, .comments-grid, .cases-grid {
                grid-template-columns: 1fr;
            }
            .price-grid {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group-full {
                grid-column: span 1;
            }
        }