:root {
            --primary-color: #8b5cf6;
            --primary-light: #a78bfa;
            --primary-dark: #6d28d9;
            --secondary-color: #ec4899;
            --text-dark: #1f1a24;
            --text-muted: #5b5266;
            --bg-light: #f9f8fc;
            --bg-white: #ffffff;
            --border-color: #e5e0eb;
            --card-shadow: 0 10px 30px rgba(139, 92, 246, 0.08);
            --transition: all 0.3s ease;
        }

        * {
            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;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

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

        /* 统一标题样式 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

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

        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            margin: 8px auto 0;
            border-radius: 2px;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
        }

        .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;
            width: auto;
        }

        .logo-text {
            font-weight: 800;
            font-size: 1.3rem;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-link {
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 5px 10px;
            border-radius: 4px;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary-color);
            background-color: rgba(139, 92, 246, 0.05);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white !important;
            padding: 8px 18px;
            border-radius: 20px;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(139, 92, 246, 0.3);
        }

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

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

        /* 页面主要区域 */
        main {
            padding-top: 70px;
        }

        /* Section 通用样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        section:nth-child(even) {
            background-color: var(--bg-white);
        }

        /* 首屏 Hero (无图片) */
        .hero-section {
            background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
                        var(--bg-white);
            padding: 120px 0 100px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-badge {
            background: rgba(139, 92, 246, 0.1);
            color: var(--primary-color);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 25px;
            letter-spacing: 1px;
            border: 1px solid rgba(139, 92, 246, 0.2);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        .hero-section h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            color: var(--text-dark);
            max-width: 900px;
            margin: 0 auto 25px;
            font-weight: 800;
        }

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

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 40px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .btn {
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1.05rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            box-shadow: 0 8px 25px rgba(139, 92, 246, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(139, 92, 246, 0.35);
        }

        .btn-secondary {
            background: var(--bg-light);
            color: var(--text-dark);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            background: #f1ecf7;
            transform: translateY(-2px);
        }

        /* 核心数据卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
            margin-top: 20px;
        }

        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px 20px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 5px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 关于我们 */
        .about-wrapper {
            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 {
            list-style: none;
        }

        .about-features li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .about-features li::before {
            content: '✓';
            color: var(--secondary-color);
            font-weight: 900;
            background: rgba(236, 72, 153, 0.1);
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 0.8rem;
        }

        .about-highlight {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.05), rgba(236, 72, 153, 0.05));
            border-left: 4px solid var(--primary-color);
            padding: 25px;
            border-radius: 0 16px 16px 0;
        }

        .about-highlight h4 {
            color: var(--primary-color);
            margin-bottom: 10px;
            font-size: 1.2rem;
        }

        /* 服务与制作场景 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 35px 25px;
            border-radius: 20px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow);
            border-color: rgba(139, 92, 246, 0.2);
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-icon {
            font-size: 2.2rem;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tags span {
            background: var(--bg-light);
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.8rem;
            color: var(--primary-color);
            font-weight: 500;
        }

        /* 聚合平台列表 */
        .platform-list {
            margin-top: 50px;
            text-align: center;
        }

        .platform-list h4 {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 25px;
            letter-spacing: 1px;
        }

        .platform-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .platform-badge {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .platform-badge:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            background: rgba(139, 92, 246, 0.05);
            transform: translateY(-2px);
        }

        /* 全行业解决方案 */
        .solution-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .tab-btn {
            padding: 10px 24px;
            border-radius: 30px;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            color: var(--text-dark);
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }

        .solution-content {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

        .solution-pane {
            display: none;
        }

        .solution-pane.active {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .solution-info h3 {
            font-size: 1.6rem;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

        .solution-info p {
            color: var(--text-muted);
            margin-bottom: 25px;
        }

        .solution-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .sol-feature-card {
            background: var(--bg-light);
            padding: 15px;
            border-radius: 12px;
            border-left: 3px solid var(--secondary-color);
        }

        .sol-feature-card h4 {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .sol-feature-card p {
            font-size: 0.85rem;
            margin: 0;
        }

        /* 流程步骤 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 25px;
            margin-top: 40px;
            position: relative;
        }

        .process-step {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 16px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .process-step:hover {
            border-color: var(--secondary-color);
            transform: translateY(-5px);
        }

        .step-num {
            width: 45px;
            height: 45px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            margin: 0 auto 20px;
            box-shadow: 0 4px 10px rgba(139, 92, 246, 0.2);
        }

        .process-step h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

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

        /* 对比评测 */
        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
            background: var(--bg-white);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: rgba(139, 92, 246, 0.03);
            color: var(--text-dark);
            font-weight: 700;
        }

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

        .comparison-table td.highlight {
            background-color: rgba(139, 92, 246, 0.02);
            font-weight: 600;
            color: var(--primary-color);
        }

        .rating-badge {
            display: flex;
            align-items: center;
            gap: 15px;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.05), rgba(236, 72, 153, 0.05));
            border: 1px solid rgba(139, 92, 246, 0.15);
            padding: 25px;
            border-radius: 16px;
            margin-top: 30px;
        }

        .rating-stars {
            color: #fbbf24;
            font-size: 1.5rem;
        }

        .rating-score {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
        }

        /* Token 比价 */
        .token-pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .pricing-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .pricing-card.popular {
            border-color: var(--primary-color);
            box-shadow: var(--card-shadow);
        }

        .pricing-card.popular::after {
            content: '推荐通道';
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--secondary-color);
            color: white;
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 10px;
            font-weight: bold;
        }

        .pricing-card h3 {
            font-size: 1.25rem;
            margin-bottom: 15px;
        }

        .price-val {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .price-val span {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: normal;
        }

        .pricing-card ul {
            list-style: none;
            margin: 20px 0 30px;
            text-align: left;
        }

        .pricing-card ul li {
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .pricing-card ul li::before {
            content: '✓';
            color: #10b981;
            font-weight: bold;
        }

        /* 培训中心 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .training-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 30px;
            transition: var(--transition);
        }

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

        .training-org {
            font-size: 0.8rem;
            color: var(--secondary-color);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .training-card h3 {
            font-size: 1.3rem;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

        .training-info-list {
            list-style: none;
            margin-bottom: 25px;
        }

        .training-info-list li {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            padding-left: 15px;
            position: relative;
        }

        .training-info-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 6px;
            height: 6px;
            background-color: var(--primary-color);
            border-radius: 50%;
        }

        /* 案例展示 */
        .case-gallery {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .case-left {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .case-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .case-img-container {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: #eee;
        }

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

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

        .case-body {
            padding: 25px;
        }

        .case-body h4 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

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

        .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--primary-color);
            font-weight: 600;
        }

        /* 用户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .comment-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            position: relative;
        }

        .comment-card::before {
            content: "“";
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 4rem;
            color: rgba(139, 92, 246, 0.08);
            line-height: 1;
            font-family: Georgia, serif;
        }

        .comment-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            font-style: italic;
            position: relative;
            z-index: 1;
        }

        .commenter-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .commenter-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .commenter-details h4 {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 2px;
        }

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

        /* 智能需求匹配与表单 */
        .form-section-wrapper {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

        .form-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: var(--bg-light);
            color: var(--text-dark);
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            background-color: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px;
            border: none;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            box-shadow: 0 5px 15px rgba(139, 92, 246, 0.2);
            transition: var(--transition);
        }

        .form-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(139, 92, 246, 0.3);
        }

        .contact-info-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-block {
            margin-bottom: 30px;
        }

        .info-block h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.95rem;
        }

        .qr-codes {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .qr-item {
            text-align: center;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
        }

        .qr-item img {
            width: 100px;
            height: 100px;
            margin: 0 auto 10px;
        }

        .qr-item p {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        /* 帮助中心与 FAQ */
        .faq-accordion {
            max-width: 850px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-dark);
            background: none;
            width: 100%;
            border: none;
            text-align: left;
            font-size: 1.05rem;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary-color);
            transition: var(--transition);
        }

        .faq-item.active {
            border-color: var(--primary-color);
            box-shadow: var(--card-shadow);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background-color: rgba(139, 92, 246, 0.01);
        }

        .faq-answer-content {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* 自助排查与术语 */
        .troubleshoot-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 40px;
        }

        .glossary-box, .troubleshoot-box {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--card-shadow);
        }

        .glossary-box h3, .troubleshoot-box h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--text-dark);
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 10px;
        }

        .troubleshoot-list, .glossary-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .troubleshoot-item h4 {
            font-size: 0.95rem;
            color: var(--primary-color);
            margin-bottom: 5px;
        }

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

        .glossary-item dt {
            font-weight: 700;
            color: var(--text-dark);
            font-size: 0.95rem;
        }

        .glossary-item dd {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-left: 0;
            margin-top: 3px;
        }

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .news-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
        }

        .news-card-body {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .news-tag {
            align-self: flex-start;
            background: rgba(236, 72, 153, 0.1);
            color: var(--secondary-color);
            font-size: 0.75rem;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: bold;
            margin-bottom: 12px;
        }

        .news-card h3 {
            font-size: 1.15rem;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .news-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .news-link {
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 页脚 */
        footer {
            background-color: #171221;
            color: #b5a9c6;
            padding: 60px 0 30px;
            border-top: 3px solid var(--primary-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

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

        .footer-logo-box p {
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .footer-links-col h4 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.1rem;
            position: relative;
        }

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

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

        .footer-links-col ul li a {
            color: #b5a9c6;
            font-size: 0.9rem;
        }

        .footer-links-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 5px;
        }

        .friend-links {
            border-top: 1px solid #2d243c;
            padding-top: 25px;
            margin-bottom: 25px;
            text-align: center;
        }

        .friend-links h4 {
            color: white;
            font-size: 0.95rem;
            margin-bottom: 15px;
        }

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

        .friend-links-list a {
            color: #b5a9c6;
            font-size: 0.85rem;
        }

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

        .copyright-box {
            border-top: 1px solid #2d243c;
            padding-top: 25px;
            text-align: center;
            font-size: 0.85rem;
        }

        /* 侧边浮动栏 */
        .floating-widget {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: white;
            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 {
            transform: translateY(-3px);
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .float-btn .tooltip-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 140px;
            border: 1px solid var(--border-color);
        }

        .float-btn .tooltip-qr img {
            width: 110px;
            height: 110px;
            margin-bottom: 5px;
        }

        .float-btn .tooltip-qr p {
            font-size: 0.75rem;
            color: var(--text-dark);
            margin: 0;
        }

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

        /* 响应式媒体查询 */
        @media (max-width: 992px) {
            .about-wrapper, .solution-pane.active, .form-section-wrapper, .troubleshoot-wrapper, .case-gallery {
                grid-template-columns: 1fr;
            }
            .case-left {
                gap: 30px;
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 40px 20px;
                transition: var(--transition);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                align-items: stretch;
            }

            .nav-menu.active {
                left: 0;
            }

            .menu-toggle {
                display: flex;
            }

            .menu-toggle.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }
            .menu-toggle.active span:nth-child(3) {
                transform: rotate(-45deg) translate(5px, -5px);
            }

            .hero-section {
                padding: 80px 0 60px;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .btn {
                width: 100%;
            }
        }