/* 基础与变量重置 */
        :root {
            --primary: #FBC02D; /* 鲜耀黄 */
            --primary-hover: #F9A825;
            --primary-light: #FFF9C4;
            --dark: #1E1E24;
            --dark-light: #2A2A35;
            --text-dark: #2B2D42;
            --text-muted: #6C757D;
            --bg-light: #FAFAFA;
            --bg-white: #FFFFFF;
            --border: #E5E5E5;
            --transition: all 0.3s ease;
        }

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

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

        /* 外层主容器对齐规范 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            background-color: var(--bg-white);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

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

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

        .ai-page-logo {
            max-height: 45px;
            object-fit: contain;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 20px;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition);
        }

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

        .nav-btn {
            background-color: var(--primary);
            color: #000 !important;
            padding: 8px 16px;
            border-radius: 4px;
            font-weight: bold;
            transition: var(--transition);
        }

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

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

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

        /* 首屏 Hero 区域（要求绝对无图片） */
        .hero {
            background: linear-gradient(135deg, #1E1E24 0%, #2D2D3A 100%);
            color: #FFF;
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(251,192,45,0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-badge {
            background-color: var(--primary);
            color: #000;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 25px;
            text-transform: uppercase;
            box-shadow: 0 4px 15px rgba(251,192,45,0.3);
        }

        .hero h1 {
            font-size: 2.5rem;
            line-height: 1.3;
            margin-bottom: 20px;
            font-weight: 800;
            color: #FFF;
        }

        .hero h1 span {
            color: var(--primary);
        }

        .hero-desc {
            font-size: 1.1rem;
            color: #CCC;
            max-width: 800px;
            margin: 0 auto 35px auto;
            line-height: 1.8;
        }

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

        .btn-main {
            background-color: var(--primary);
            color: #000;
            text-decoration: none;
            padding: 14px 28px;
            border-radius: 6px;
            font-weight: bold;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(251,192,45,0.4);
        }

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

        .btn-secondary {
            background-color: transparent;
            color: #FFF;
            text-decoration: none;
            padding: 14px 28px;
            border-radius: 6px;
            border: 2px solid #FFF;
            font-weight: bold;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        /* 数据指标卡片（首屏下侧） */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .stat-card {
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .stat-card:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--primary);
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: #AAA;
        }

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

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

        .section-subtitle {
            color: var(--primary-hover);
            font-weight: 700;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 2px;
            display: block;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }

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

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.8;
        }

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

        .feature-item {
            background-color: var(--bg-white);
            padding: 20px;
            border-radius: 6px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
            border-left: 4px solid var(--primary);
        }

        .feature-item h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

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

        /* 软件介绍 / 平台能力 */
        .intro-container {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            border: 1px solid var(--border);
        }

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

        .intro-box {
            background-color: var(--bg-light);
            padding: 25px;
            border-radius: 8px;
            border-top: 4px solid var(--primary);
            transition: var(--transition);
        }

        .intro-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        }

        .intro-box h4 {
            margin-bottom: 12px;
            font-size: 1.1rem;
            color: var(--text-dark);
        }

        .intro-box p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 服务体系 (支持的模型) */
        .services-desc {
            text-align: center;
            max-width: 800px;
            margin: -30px auto 40px auto;
            color: var(--text-muted);
        }

        .logo-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
        }

        .logo-cloud-item {
            background-color: var(--bg-white);
            padding: 8px 16px;
            border-radius: 4px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border);
            box-shadow: 0 2px 5px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .logo-cloud-item:hover {
            background-color: var(--primary-light);
            border-color: var(--primary);
            transform: scale(1.05);
        }

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

        .service-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 30px;
            transition: var(--transition);
        }

        .service-card:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            border-color: var(--primary);
            transform: translateY(-5px);
        }

        .service-icon {
            font-size: 2rem;
            margin-bottom: 15px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* 全自动制作流程 */
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: 8px;
            border: 1px solid var(--border);
            position: relative;
            z-index: 2;
        }

        .step-number {
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #000;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

        .process-step h4 {
            margin-bottom: 10px;
            font-weight: 700;
        }

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

        /* 全行业解决方案 & 服务网络 */
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

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

        .solution-list li {
            background-color: var(--bg-white);
            padding: 15px;
            border-radius: 6px;
            margin-bottom: 12px;
            border-left: 4px solid var(--primary);
            font-weight: 500;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .solution-list span {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .network-card {
            background-color: var(--dark);
            color: #FFF;
            padding: 40px;
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .network-card h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.5rem;
        }

        .network-card p {
            color: #CCC;
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 25px;
        }

        .network-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .network-tag {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
        }

        /* 流程与技术标准 */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .flow-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 8px;
            border: 1px solid var(--border);
            text-align: center;
        }

        .flow-card h4 {
            margin-bottom: 12px;
            font-size: 1.15rem;
            color: var(--text-dark);
        }

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

        .tech-standards {
            background-color: var(--primary-light);
            border-radius: 8px;
            padding: 35px;
            margin-top: 40px;
            border: 1px dashed var(--primary-hover);
        }

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

        .std-item {
            background-color: var(--bg-white);
            padding: 15px;
            border-radius: 6px;
            text-align: center;
            font-weight: 500;
            font-size: 0.9rem;
        }

        /* 案例展示 (含宣传图及素材图) */
        .case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .case-large {
            background-color: var(--bg-white);
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .case-media-box {
            background-color: #EEE;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-media-box img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .case-large:hover .case-media-box img {
            transform: scale(1.03);
        }

        .case-info {
            padding: 25px;
        }

        .case-tag {
            background-color: var(--primary);
            color: #000;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 8px;
            border-radius: 3px;
            display: inline-block;
            margin-bottom: 10px;
        }

        .case-info h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
        }

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

        .case-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .case-mini {
            background-color: var(--bg-white);
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border);
            display: grid;
            grid-template-columns: 150px 1fr;
            height: 100%;
        }

        .case-mini-media {
            background-color: #EEE;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

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

        .case-mini-info {
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .case-mini-info h4 {
            font-size: 1rem;
            margin-bottom: 8px;
        }

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

        /* 推荐评分与对比评测 */
        .rating-banner {
            background: linear-gradient(135deg, #1E1E24 0%, #2A2A35 100%);
            color: #FFF;
            padding: 40px;
            border-radius: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
        }

        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 1.5rem;
            color: var(--primary);
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

        .rating-score span {
            font-size: 1.2rem;
            color: #AAA;
            font-weight: normal;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background-color: var(--bg-white);
            border-radius: 8px;
            border: 1px solid var(--border);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

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

        .comparison-table th {
            background-color: #F8F9FA;
            font-weight: 700;
        }

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

        .comparison-table td strong {
            color: #2E7D32;
        }

        .highlight-col {
            background-color: var(--primary-light);
            font-weight: bold;
        }

        /* Token 比价看板 */
        .token-pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .price-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 25px;
            text-align: center;
            transition: var(--transition);
        }

        .price-card.featured {
            border: 2px solid var(--primary);
            box-shadow: 0 5px 15px rgba(251,192,45,0.15);
            position: relative;
        }

        .price-card.featured::before {
            content: '推荐使用';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: #000;
            padding: 2px 10px;
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: 20px;
        }

        .price-header h4 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .price-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin: 15px 0;
        }

        .price-value span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: normal;
        }

        .price-features {
            list-style: none;
            padding: 0;
            margin-top: 15px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .price-features li {
            margin: 8px 0;
        }

        /* 职业技术与人工智能培训 */
        .training-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .training-content h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
        }

        .training-courses {
            list-style: none;
            margin-top: 20px;
        }

        .training-courses li {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            padding: 15px;
            border-radius: 6px;
            margin-bottom: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .training-courses span {
            background-color: var(--primary-light);
            color: #000;
            padding: 2px 8px;
            font-size: 0.75rem;
            border-radius: 3px;
            font-weight: 700;
        }

        .training-side {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            padding: 30px;
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .training-side h4 {
            font-size: 1.15rem;
            margin-bottom: 15px;
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

        .training-side p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 15px;
        }

        /* 智能需求匹配与表单 */
        .form-section-bg {
            background-color: var(--bg-white);
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            border: 1px solid var(--border);
            padding: 40px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }

        .form-intro h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .form-intro p {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 0.95rem;
        }

        .contact-card-box {
            background-color: var(--bg-light);
            padding: 20px;
            border-radius: 8px;
            border: 1px solid var(--border);
        }

        .contact-info-item {
            margin-bottom: 15px;
            font-size: 0.9rem;
        }

        .contact-info-item strong {
            display: block;
            color: var(--text-dark);
        }

        .main-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

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

        .main-form label {
            display: block;
            margin-bottom: 5px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .main-form input, .main-form select, .main-form textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: 4px;
            background-color: var(--bg-light);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .main-form input:focus, .main-form select:focus, .main-form textarea:focus {
            outline: none;
            border-color: var(--primary);
            background-color: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(251,192,45,0.25);
        }

        .btn-submit {
            grid-column: span 2;
            background-color: var(--primary);
            color: #000;
            border: none;
            padding: 12px;
            border-radius: 4px;
            font-weight: bold;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 10px;
        }

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

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 25px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
            transition: var(--transition);
        }

        .review-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.04);
        }

        .review-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .review-avatar-placeholder {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            color: #000;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

        .review-meta h5 {
            font-size: 0.9rem;
            margin-bottom: 2px;
        }

        .review-meta span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .review-text {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 常见问题 FAQ 折叠面板 & 常见问题自助排查 */
        .faq-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
        }

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

        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 6px;
            overflow: hidden;
        }

        .faq-header {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 16px 20px;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-header:hover {
            background-color: var(--bg-light);
        }

        .faq-icon-state {
            font-size: 1.2rem;
            transition: var(--transition);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-light);
        }

        .faq-content-inner {
            padding: 16px 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            line-height: 1.7;
        }

        .faq-item.active .faq-content {
            max-height: 200px;
        }

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

        .troubleshoot-box {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 8px;
            border: 1px solid var(--border);
        }

        .troubleshoot-box h4 {
            margin-bottom: 15px;
            font-size: 1.1rem;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 8px;
        }

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

        .troubleshoot-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .troubleshoot-list li::before {
            content: '●';
            color: var(--primary-hover);
        }

        /* 网站术语百科与知识库标签云 */
        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
        }

        .wiki-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 15px;
            text-align: center;
        }

        .wiki-card h5 {
            font-size: 0.9rem;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .wiki-card p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .wiki-tags-wrap {
            margin-top: 30px;
            text-align: center;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
        }

        .tag-item {
            background-color: var(--bg-white);
            color: var(--text-muted);
            border: 1px solid var(--border);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            text-decoration: none;
            transition: var(--transition);
        }

        .tag-item:hover {
            background-color: var(--primary);
            color: #000;
            border-color: var(--primary);
        }

        /* 行业资讯 / 知识库文章列表 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .news-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .news-body {
            padding: 20px;
        }

        .news-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: block;
        }

        .news-title-link {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            text-decoration: none;
            line-height: 1.5;
            display: block;
            margin-bottom: 12px;
            transition: var(--transition);
        }

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

        .news-body p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .news-footer {
            padding: 15px 20px;
            border-top: 1px solid var(--border);
            background-color: var(--bg-light);
        }

        .news-more-btn {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-dark);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 页脚与友情链接 */
        footer {
            background-color: var(--dark);
            color: #FFF;
            padding: 60px 0 20px 0;
            font-size: 0.85rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            padding-bottom: 40px;
        }

        .footer-brand p {
            color: #AAA;
            margin-top: 15px;
            line-height: 1.7;
        }

        .footer-col h4 {
            color: var(--primary);
            font-size: 1rem;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: #CCC;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

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

        .footer-qrcode img {
            width: 80px;
            height: 80px;
            background-color: #FFF;
            border-radius: 4px;
            padding: 3px;
        }

        .footer-qrcode span {
            font-size: 0.8rem;
            color: #CCC;
            line-height: 1.5;
        }

        /* 友情链接专区 */
        .friendship-links {
            background-color: rgba(255,255,255,0.02);
            padding: 20px;
            border-radius: 6px;
            margin-bottom: 30px;
            border: 1px solid rgba(255,255,255,0.05);
        }

        .friendship-links h5 {
            color: var(--primary);
            margin-bottom: 10px;
            font-size: 0.85rem;
        }

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

        .friendship-links-wrap a {
            color: #CCC;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #888;
            flex-wrap: wrap;
            gap: 15px;
        }

        .footer-bottom a {
            color: #888;
            text-decoration: none;
        }

        /* 悬浮客服面板 */
        .float-widget {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: #000;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            font-weight: bold;
            position: relative;
        }

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

        .float-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            display: none;
            width: 200px;
            text-align: center;
        }

        .float-popover img {
            width: 120px;
            height: 120px;
            margin: 0 auto 10px auto;
            display: block;
        }

        .float-popover p {
            font-size: 0.75rem;
            color: var(--text-dark);
            line-height: 1.4;
        }

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

        /* 响应式媒体查询 */
        @media (max-width: 992px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }

            .about-grid, .intro-grid, .services-grid, .flow-grid, .case-grid, .reviews-grid, .news-grid {
                grid-template-columns: 1fr;
            }

            .process-timeline {
                grid-template-columns: 1fr 1fr;
            }

            .grid-2col, .training-container, .form-grid, .faq-layout {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .case-mini {
                grid-template-columns: 120px 1fr;
            }
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 1.8rem;
            }

            .hero-desc {
                font-size: 0.95rem;
            }

            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                padding: 20px;
                box-shadow: 0 4px 10px rgba(0,0,0,0.05);
                gap: 15px;
            }

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

            .menu-toggle {
                display: flex;
            }

            .hero-stats {
                grid-template-columns: 1fr;
            }

            .process-timeline {
                grid-template-columns: 1fr;
            }

            .wiki-grid {
                grid-template-columns: 1fr 1fr;
            }

            .main-form {
                grid-template-columns: 1fr;
            }

            .btn-submit {
                grid-column: span 1;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }