:root {
            --primary: #0d9488;
            --primary-dark: #0f766e;
            --primary-light: #ccfbf1;
            --accent: #22d3ee;
            --bg-base: #f8fafc;
            --bg-card: #ffffff;
            --text-main: #0f172a;
            --text-muted: #475569;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
            --radius: 12px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

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

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

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

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

        .nav-btns {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn-outline {
            padding: 8px 16px;
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
        }

        .btn-outline:hover {
            background-color: var(--primary-light);
        }

        .btn-primary {
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white !important;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            box-shadow: 0 2px 4px rgba(13, 148, 136, 0.2);
        }

        .btn-primary:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }

        /* 移动端菜单开关 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
        }

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

        /* Hero首屏 - 严禁出现任何图片 */
        .hero {
            position: relative;
            padding: 100px 0;
            background: radial-gradient(circle at 10% 20%, rgba(204, 251, 241, 0.4) 0%, rgba(248, 250, 252, 1) 90%);
            text-align: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 50%;
            height: 80%;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.1) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            right: -10%;
            width: 50%;
            height: 80%;
            background: radial-gradient(circle, rgba(13, 148, 136, 0.08) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 25px;
            text-transform: uppercase;
            letter-spacing: 1px;
            border: 1px solid rgba(13, 148, 136, 0.2);
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.2;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

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

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .hero-btns .btn-main {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: 8px;
            font-weight: 600;
        }

        /* 通用区块样式 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px auto;
        }

        .section-header h2 {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-muted);
        }

        /* 1. 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }

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

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

        .stat-val {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

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

        /* 2. 关于我们 */
        .about-content {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.75rem;
            margin-bottom: 20px;
            color: var(--primary-dark);
        }

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

        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .about-feature-item {
            background-color: var(--bg-card);
            padding: 20px;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }

        .about-feature-item h4 {
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .about-info-box {
            background: linear-gradient(135deg, var(--primary-light), rgba(34, 211, 238, 0.1));
            padding: 30px;
            border-radius: var(--radius);
            border: 1px solid rgba(13, 148, 136, 0.15);
        }

        .info-list-item {
            margin-bottom: 15px;
        }

        .info-list-item:last-child {
            margin-bottom: 0;
        }

        .info-list-label {
            font-weight: 700;
            color: var(--primary-dark);
            display: block;
            font-size: 0.9rem;
            text-transform: uppercase;
        }

        .info-list-val {
            color: var(--text-main);
            font-size: 1.1rem;
        }

        /* 3. 全平台AIGC服务 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-card);
            padding: 40px 30px;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .service-icon {
            width: 60px;
            height: 60px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.75rem;
            margin-bottom: 25px;
        }

        .service-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--text-main);
        }

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

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

        .service-tag {
            background-color: var(--bg-base);
            color: var(--text-muted);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 500;
        }

        /* 4. 一站式AIGC制作 (主打场景) */
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scene-card {
            background-color: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .scene-img-holder {
            background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
            height: 180px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

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

        .scene-card:hover .scene-img-holder img {
            transform: scale(1.05);
        }

        .scene-info {
            padding: 20px;
        }

        .scene-info h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--text-main);
        }

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

        /* 5. 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

        .solution-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .solution-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .solution-list li {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            padding-left: 15px;
            position: relative;
        }

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

        /* 6. 全国服务网络 */
        .network-box {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

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

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

        .network-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .network-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .network-dot {
            width: 8px;
            height: 8px;
            background-color: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--accent);
        }

        .network-map-sim {
            height: 250px;
            background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
            border-radius: var(--radius);
            position: relative;
            border: 1px dashed var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .network-map-sim span {
            font-weight: 700;
            color: var(--primary-dark);
            font-size: 1.1rem;
        }

        /* 7. 标准化AIGC流程 */
        .flow-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
            gap: 20px;
        }

        .flow-steps::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 50px;
            right: 50px;
            height: 2px;
            background-color: var(--border-color);
            z-index: 1;
        }

        .flow-step {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 80px;
            height: 80px;
            background-color: var(--bg-card);
            border: 3px solid var(--primary);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 auto 20px auto;
            transition: var(--transition);
        }

        .flow-step:hover .step-num {
            background-color: var(--primary);
            color: white;
            transform: scale(1.1);
        }

        .flow-step h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--text-main);
        }

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

        /* 8. 技术标准 */
        .tech-standards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

        .standard-card h3 {
            color: var(--primary-dark);
            margin-bottom: 10px;
            font-size: 1.25rem;
        }

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

        /* 9. 客户案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

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

        .case-banner {
            height: 200px;
            background: linear-gradient(135deg, var(--primary-light), rgba(34, 211, 238, 0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

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

        .case-info {
            padding: 25px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 8px;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 4px;
            margin-bottom: 15px;
        }

        .case-info h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--text-main);
        }

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

        /* 10. 对比评测 */
        .eval-section {
            background-color: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 40px;
        }

        .eval-summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 30px;
            margin-bottom: 30px;
        }

        .eval-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-num {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
        }

        .score-stars {
            display: flex;
            flex-direction: column;
        }

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

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

        .eval-table-container {
            width: 100%;
            overflow-x: auto;
        }

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

        .eval-table th, .eval-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .eval-table th {
            background-color: var(--bg-base);
            font-weight: 700;
            color: var(--text-main);
        }

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

        /* 11. 智能需求匹配与表单 */
        .match-section {
            background: linear-gradient(135deg, rgba(204, 251, 241, 0.3) 0%, rgba(255, 255, 255, 1) 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
        }

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

        .form-info h3 {
            font-size: 1.75rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
        }

        .form-info p {
            color: var(--text-muted);
            margin-bottom: 30px;
        }

        .form-info-items {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .form-info-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .form-info-icon {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .match-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

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

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

        .form-group input, .form-group select, .form-group textarea {
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.95rem;
            background-color: var(--bg-card);
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        .btn-submit {
            padding: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-submit:hover {
            opacity: 0.95;
            transform: translateY(-1px);
        }

        /* 12. Token比价参考 */
        .token-comparison {
            background-color: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 40px;
        }

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

        .token-card {
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px;
            text-align: center;
            background-color: var(--bg-base);
            transition: var(--transition);
        }

        .token-card.best {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            position: relative;
            background-color: var(--bg-card);
        }

        .token-card.best::before {
            content: '最优选择';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: white;
            padding: 4px 12px;
            font-size: 0.75rem;
            border-radius: 20px;
            font-weight: 600;
        }

        .token-card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin: 20px 0;
        }

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

        .token-features li {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            padding-left: 20px;
            position: relative;
        }

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

        /* 13 & 14. 职业技术与人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

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

        .training-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .training-card h3 {
            font-size: 1.2rem;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

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

        .training-badge {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            padding: 4px 10px;
            font-size: 0.75rem;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 15 & 16. 帮助中心与FAQ */
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 15px;
            max-width: 800px;
            margin: 0 auto;
        }

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

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

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

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

        .faq-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-content {
            padding: 0 20px 20px 20px;
        }

        /* 17. 常见问题自助排查 */
        .troubleshooting {
            background-color: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 45px;
        }

        .trouble-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .trouble-card h3 {
            font-size: 1.2rem;
            color: var(--text-main);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .trouble-step-list {
            list-style: none;
        }

        .trouble-step-list li {
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        .trouble-step-list span {
            font-weight: 700;
            color: var(--primary);
            margin-right: 8px;
        }

        /* 18. AI术语百科 */
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

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

        .glossary-card h4 {
            color: var(--primary-dark);
            margin-bottom: 8px;
            font-size: 1rem;
        }

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

        /* 19. 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .news-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .news-card h3 {
            font-size: 1.15rem;
            margin-bottom: 15px;
            color: var(--text-main);
        }

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

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

        /* 20 & 21. 联系我们与加盟代理 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .contact-info-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
        }

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

        .contact-detail-item h4 {
            color: var(--primary);
            font-size: 0.9rem;
            margin-bottom: 5px;
        }

        .contact-detail-item p {
            font-size: 1rem;
            color: var(--text-main);
        }

        .agent-card {
            background: linear-gradient(135deg, var(--primary-light), rgba(34, 211, 238, 0.15));
            border: 1px solid rgba(13, 148, 136, 0.2);
            border-radius: var(--radius);
            padding: 40px;
            text-align: center;
        }

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

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

        .qr-wrapper {
            margin: 20px auto;
            width: 180px;
            height: 180px;
            background-color: white;
            padding: 10px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
        }

        .qr-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        /* 6条用户评论 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .testimonial-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px;
            position: relative;
        }

        .testimonial-card::before {
            content: '“';
            font-size: 4rem;
            color: rgba(13, 148, 136, 0.1);
            position: absolute;
            top: 10px;
            left: 20px;
            line-height: 1;
        }

        .testimonial-content {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

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

        .author-avatar {
            width: 45px;
            height: 45px;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
        }

        .author-info h4 {
            font-size: 0.95rem;
            color: var(--text-main);
        }

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

        /* 浮动客服 */
        .float-service {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            border-radius: 50%;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.05);
        }

        .qr-popup {
            position: absolute;
            bottom: 70px;
            right: 0;
            width: 200px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            padding: 15px;
            text-align: center;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            transform: translateY(10px);
        }

        .float-btn:hover .qr-popup {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .qr-popup img {
            width: 100%;
            height: auto;
            margin-bottom: 8px;
        }

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

        .back-to-top {
            width: 45px;
            height: 45px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-sm);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            height: 40px;
            margin-bottom: 15px;
        }

        .footer-about p {
            font-size: 0.9rem;
            line-height: 1.5;
        }

        .footer-links h4 {
            color: white;
            font-size: 1.05rem;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: #94a3b8;
        }

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

        .friendship-links {
            grid-column: span 4;
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friendship-links span {
            font-size: 0.9rem;
            color: white;
            font-weight: 600;
        }

        .friendship-links a {
            font-size: 0.85rem;
            color: #64748b;
        }

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

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            text-align: center;
            font-size: 0.85rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid, .scenes-grid, .solutions-grid, .case-grid, .token-grid, .training-grid, .testimonials-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-content, .contact-grid, .network-box, .form-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .friendship-links {
                grid-column: span 2;
            }
        }

        @media (max-width: 768px) {
            .nav-menu, .nav-btns {
                display: none;
            }
            .nav-menu.active {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--bg-card);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: var(--shadow-lg);
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2.25rem;
            }
            .flow-steps {
                flex-direction: column;
                gap: 40px;
            }
            .flow-steps::before {
                display: none;
            }
            .stats-grid, .service-grid, .scenes-grid, .solutions-grid, .case-grid, .token-grid, .training-grid, .testimonials-grid, .glossary-grid, .trouble-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .friendship-links {
                grid-column: span 1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }