:root {
            --primary: #00b4d8;
            --primary-dark: #0077b6;
            --primary-light: #90e0ef;
            --accent: #00f5d4;
            --bg-dark: #0a1128;
            --bg-light: #f8f9fa;
            --bg-card: #ffffff;
            --text-dark: #1c2541;
            --text-muted: #5c677d;
            --border-color: #e2e8f0;
            --shadow: 0 10px 30px rgba(0, 180, 216, 0.06);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .section-padding {
            padding: 80px 0;
        }

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

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--text-dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-muted);
            margin-top: 15px;
            font-size: 1.1rem;
        }

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .ai-page-logo {
            height: 40px;
            object-fit: contain;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.3rem;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-links a {
            font-size: 0.95rem;
            color: var(--text-dark);
            font-weight: 500;
        }

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

        .nav-btn {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff !important;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            box-shadow: 0 4px 10px rgba(0, 180, 216, 0.2);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(0, 180, 216, 0.3);
        }

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

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

        /* Hero首屏 (纯科技风，绝无图片) */
        .hero {
            padding-top: 150px;
            padding-bottom: 90px;
            background: linear-gradient(135deg, #f0fafb 0%, #e8f5e9 50%, #e0f2f1 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 180, 216, 0.1) 0%, transparent 70%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 245, 212, 0.1) 0%, transparent 70%);
            z-index: 1;
        }

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

        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            color: var(--text-dark);
            font-weight: 800;
            margin-bottom: 20px;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary-dark), #00f5d4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 35px;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 50px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1.05rem;
            box-shadow: 0 8px 20px rgba(0, 180, 216, 0.25);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(0, 180, 216, 0.35);
            color: #fff;
        }

        .btn-secondary {
            background-color: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border-color);
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1.05rem;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background-color: var(--bg-light);
            border-color: var(--primary);
            transform: translateY(-3px);
        }

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

        .stat-card {
            background-color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 15px;
            padding: 20px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 180, 216, 0.12);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 5px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        /* 关于我们 */
        .about {
            background-color: #fff;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

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

        .about-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .about-feature-item svg {
            width: 24px;
            height: 24px;
            stroke: var(--primary);
            flex-shrink: 0;
        }

        .about-feature-item div h4 {
            font-size: 1rem;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .about-feature-item div p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* 全平台AIGC服务体系 */
        .services {
            background-color: var(--bg-light);
        }

        .service-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-bottom: 50px;
        }

        .service-card {
            background-color: #fff;
            border-radius: 15px;
            padding: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-light);
            box-shadow: 0 15px 35px rgba(0, 180, 216, 0.1);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background-color: #e0f7fa;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary-dark);
        }

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

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .model-list-wrapper {
            background-color: #fff;
            border-radius: 15px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }

        .model-list-wrapper h4 {
            text-align: center;
            font-size: 1.2rem;
            margin-bottom: 25px;
            color: var(--text-dark);
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .model-tag {
            background-color: var(--bg-light);
            color: var(--text-dark);
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .model-tag:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
        }

        /* 平台软件介绍 */
        .software-intro {
            background-color: #fff;
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-features {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .intro-feature {
            display: flex;
            gap: 15px;
            background: var(--bg-light);
            padding: 20px;
            border-radius: 12px;
            border-left: 4px solid var(--primary);
        }

        .intro-feature h4 {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .intro-feature p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 全自动AIGC制作流程 */
        .workflow {
            background-color: var(--bg-light);
        }

        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }

        .workflow-step {
            background-color: #fff;
            border-radius: 12px;
            padding: 25px 20px;
            text-align: center;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            position: relative;
            z-index: 2;
        }

        .workflow-num {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            box-shadow: 0 4px 10px rgba(0, 180, 216, 0.2);
        }

        .workflow-step h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        .workflow-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 全行业解决方案 */
        .solutions {
            background-color: #fff;
        }

        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .solution-card {
            border: 1px solid var(--border-color);
            border-radius: 15px;
            padding: 30px;
            transition: var(--transition);
            background: #fff;
        }

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

        .solution-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--text-dark);
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

        .solution-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .solution-tag {
            display: inline-block;
            background-color: #e0f7fa;
            color: var(--primary-dark);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* 全国服务网络 & 标准化流程 & 技术标准 (拼图模块) */
        .standards-network {
            background-color: var(--bg-light);
        }

        .triple-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .triple-card {
            background-color: #fff;
            border-radius: 15px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }

        .triple-card h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--text-dark);
            border-bottom: 2px solid var(--primary-light);
            padding-bottom: 10px;
        }

        .standards-list, .flow-timeline {
            list-style: none;
        }

        .standards-list li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 15px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .standards-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        .flow-timeline li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .flow-timeline li::before {
            content: '';
            position: absolute;
            left: 5px;
            top: 5px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--primary);
        }

        .flow-timeline li::after {
            content: '';
            position: absolute;
            left: 9px;
            top: 20px;
            bottom: -20px;
            width: 2px;
            background-color: var(--border-color);
        }

        .flow-timeline li:last-child::after {
            display: none;
        }

        .flow-timeline h4 {
            color: var(--text-dark);
            margin-bottom: 3px;
        }

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

        .network-details p {
            margin-bottom: 15px;
        }

        .network-regions {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .network-region {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 4px 10px;
            font-size: 0.8rem;
            border-radius: 4px;
        }

        /* 案例展示 */
        .cases {
            background-color: #fff;
        }

        .case-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .case-card {
            background-color: #fff;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 180, 216, 0.15);
        }

        .case-img-box {
            height: 200px;
            overflow: hidden;
            background-color: var(--bg-light);
            position: relative;
        }

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

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

        .case-info {
            padding: 20px;
        }

        .case-tag {
            background-color: #e0f7fa;
            color: var(--primary-dark);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 10px;
        }

        .case-info h3 {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .case-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 对比评测 */
        .evaluation {
            background-color: var(--bg-light);
        }

        .evaluation-layout {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }

        .score-box {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0d1f2d 100%);
            color: #fff;
            border-radius: 20px;
            padding: 40px 30px;
            text-align: center;
            box-shadow: 0 15px 35px rgba(10, 17, 40, 0.3);
        }

        .score-box h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .score-num {
            font-size: 4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 10px;
        }

        .score-max {
            font-size: 1.1rem;
            color: #8892b0;
            margin-bottom: 20px;
        }

        .stars {
            color: #ffc107;
            font-size: 1.5rem;
            margin-bottom: 25px;
        }

        .stars span {
            margin: 0 2px;
        }

        .score-badge {
            background-color: rgba(0, 245, 212, 0.15);
            color: var(--accent);
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            border: 1px solid rgba(0, 245, 212, 0.3);
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background: #fff;
            border-radius: 15px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 500px;
        }

        .eval-table th, .eval-table td {
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }

        .eval-table th {
            background-color: #f8fafc;
            color: var(--text-dark);
            font-weight: 600;
        }

        .eval-table td strong {
            color: var(--primary-dark);
        }

        /* Token 比价参考 & 价格参考 */
        .token-pricing {
            background-color: #fff;
        }

        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .token-card {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 15px;
            padding: 30px;
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }

        .token-card.popular {
            border-color: var(--primary);
        }

        .token-card.popular::before {
            content: '推荐';
            position: absolute;
            top: 15px;
            right: -25px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 25px;
            transform: rotate(45deg);
        }

        .token-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 180, 216, 0.1);
        }

        .token-card h3 {
            font-size: 1.4rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        .token-provider {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .token-price-box {
            display: flex;
            align-items: baseline;
            gap: 5px;
            margin-bottom: 25px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 20px;
        }

        .token-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-dark);
        }

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

        .token-features {
            list-style: none;
            margin-bottom: 30px;
        }

        .token-features li {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            padding-left: 20px;
            position: relative;
        }

        .token-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        /* 职业技术培训 & 人工智能培训 */
        .training {
            background-color: var(--bg-light);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .course-card {
            background-color: #fff;
            border-radius: 15px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

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

        .course-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #00b4d8 100%);
            color: #fff;
            padding: 30px 25px;
            text-align: center;
        }

        .course-header h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .course-header span {
            background-color: rgba(255,255,255,0.2);
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
        }

        .course-body {
            padding: 25px;
        }

        .course-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .course-details {
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
        }

        .course-detail-item {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .course-detail-item strong {
            color: var(--text-dark);
        }

        /* 客户评论卡片 (6条用户评论) */
        .comments {
            background-color: #fff;
        }

        .comment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .comment-card {
            background-color: var(--bg-light);
            border-radius: 15px;
            padding: 30px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .comment-card:hover {
            border-color: var(--primary-light);
            transform: translateY(-5px);
            background-color: #fff;
            box-shadow: var(--shadow);
        }

        .comment-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .comment-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary-dark);
            font-size: 1.1rem;
        }

        .comment-user-info h4 {
            font-size: 1rem;
            color: var(--text-dark);
        }

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

        .comment-body {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 帮助中心 & FAQ折叠面板 & 常见问题排查 & 百科 */
        .help-faq {
            background-color: var(--bg-light);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background-color: #fff;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.95rem;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            content: '-';
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: #fcfdfe;
        }

        .faq-answer-inner {
            padding: 0 20px 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .help-aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .diagnose-box, .wiki-box {
            background-color: #fff;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }

        .diagnose-box h3, .wiki-box h3 {
            font-size: 1.25rem;
            margin-bottom: 20px;
            color: var(--text-dark);
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

        .diagnose-steps {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .diagnose-step {
            display: flex;
            gap: 12px;
            font-size: 0.88rem;
        }

        .diag-num {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .diag-content h4 {
            color: var(--text-dark);
            margin-bottom: 3px;
        }

        .diag-content p {
            color: var(--text-muted);
        }

        .wiki-terms {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .wiki-term dt {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 0.9rem;
            margin-bottom: 4px;
        }

        .wiki-term dd {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-inline-start: 0;
        }

        /* 行业资讯 / 知识库 */
        .news {
            background-color: #fff;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .news-card {
            background-color: #fff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 180, 216, 0.1);
        }

        .news-meta {
            padding: 20px 20px 10px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .news-title {
            padding: 0 20px 15px;
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.5;
        }

        .news-title a {
            color: var(--text-dark);
        }

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

        .news-excerpt {
            padding: 0 20px 25px;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 智能需求匹配 + 联系我们 */
        .contact {
            background-color: var(--bg-light);
        }

        .contact-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
        }

        .form-box {
            background-color: #fff;
            border-radius: 15px;
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .form-group label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        .form-group input, .form-group select, .form-group textarea {
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.9rem;
            transition: var(--transition);
            width: 100%;
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.1);
        }

        .form-submit-btn {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            border: none;
            padding: 14px 30px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
            font-size: 1rem;
            box-shadow: 0 4px 15px rgba(0, 180, 216, 0.2);
        }

        .form-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 180, 216, 0.3);
        }

        .contact-info-aside {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }

        .info-card {
            background-color: #fff;
            border-radius: 12px;
            padding: 25px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            text-align: center;
        }

        .info-card h3 {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

        .info-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .info-card img {
            width: 120px;
            height: 120px;
            object-fit: contain;
            margin-top: 10px;
            border: 1px solid var(--border-color);
            padding: 5px;
            border-radius: 8px;
        }

        /* 页脚 (Footer) */
        footer {
            background-color: var(--bg-dark);
            color: #8892b0;
            padding: 60px 0 30px;
            font-size: 0.85rem;
            border-top: 1px solid #1c2c4c;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo-box h3 {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 15px;
        }

        .footer-logo-box p {
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .footer-links-box h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 20px;
        }

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

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: #8892b0;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }

        .footer-qrcode-box {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .footer-qrcode-box h4 {
            color: #fff;
            font-size: 1rem;
        }

        .footer-qr-wrapper {
            display: flex;
            gap: 15px;
            align-items: center;
        }

        .footer-qr-wrapper img {
            width: 90px;
            height: 90px;
            background-color: #fff;
            padding: 4px;
            border-radius: 4px;
        }

        .footer-qr-desc {
            font-size: 0.75rem;
            line-height: 1.5;
        }

        .friend-links {
            border-top: 1px solid #1c2c4c;
            padding: 20px 0;
            margin-bottom: 20px;
        }

        .friend-links-title {
            color: #fff;
            font-weight: 600;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-list a {
            color: #8892b0;
            font-size: 0.8rem;
        }

        .friend-links-list a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid #1c2c4c;
            padding-top: 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 侧边悬浮面板 */
        .floating-widget {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: #fff;
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            border: 1px solid var(--border-color);
        }

        .float-btn:hover {
            background-color: var(--primary);
            color: #fff !important;
            transform: translateY(-2px);
        }

        .float-btn svg {
            width: 22px;
            height: 22px;
            fill: currentColor;
        }

        .float-qrcode-pop {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: #fff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            width: 140px;
        }

        .float-qrcode-pop img {
            width: 110px;
            height: 110px;
        }

        .float-qrcode-pop span {
            font-size: 0.75rem;
            color: var(--text-dark);
            white-space: nowrap;
        }

        .float-btn:hover .float-qrcode-pop {
            display: flex;
        }

        /* 移动端响应式适配 */
        @media (max-width: 1024px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .intro-grid, .evaluation-layout, .contact-layout, .faq-layout {
                grid-template-columns: 1fr;
                gap: 35px;
            }
            .triple-grid {
                grid-template-columns: 1fr;
                gap: 25px;
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #fff;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                gap: 15px;
            }
            .nav-links.active {
                display: flex;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .service-features, .workflow-steps, .solutions .solution-grid, .token-grid, .training-grid, .comment-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }