:root {
            --primary: #00f2fe;
            --secondary: #4facfe;
            --accent: #ff007f;
            --dark: #0f172a;
            --light-bg: #f8fafc;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --glow-color: rgba(0, 242, 254, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

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

        .section-header h2 {
            font-size: 2rem;
            color: var(--dark);
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            margin: 8px auto 0;
            border-radius: 2px;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

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

        .brand img {
            height: 45px;
            width: auto;
        }

        .brand-text {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-link:hover {
            color: var(--secondary);
            background-color: var(--light-bg);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
            border: none;
            cursor: pointer;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(79, 172, 254, 0.6);
        }

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

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

        /* Hero首屏 - 极致鲜亮 纯CSS科技感 */
        .hero {
            background: radial-gradient(circle at 10% 20%, rgba(0, 242, 254, 0.08) 0%, rgba(79, 172, 254, 0.05) 90%), #ffffff;
            padding: 120px 0 100px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 40%;
            height: 60%;
            background: radial-gradient(circle, rgba(0, 242, 254, 0.2) 0%, transparent 70%);
            z-index: 1;
            filter: blur(50px);
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 40%;
            height: 60%;
            background: radial-gradient(circle, rgba(255, 0, 127, 0.1) 0%, transparent 70%);
            z-index: 1;
            filter: blur(50px);
        }

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

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 242, 254, 0.1);
            border: 1px solid rgba(0, 242, 254, 0.3);
            color: var(--secondary);
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: 50px;
            margin-bottom: 24px;
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.05); opacity: 0.8; }
            100% { transform: scale(1); opacity: 1; }
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero-title span {
            background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #ff007f 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            font-weight: 700;
            font-size: 1.1rem;
            padding: 16px 36px;
            border-radius: 50px;
            box-shadow: 0 10px 25px rgba(0, 242, 254, 0.4);
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(0, 242, 254, 0.6);
        }

        .btn-secondary {
            background: #ffffff;
            color: var(--dark);
            border: 2px solid var(--border-color);
            font-weight: 700;
            font-size: 1.1rem;
            padding: 14px 34px;
            border-radius: 50px;
            transition: var(--transition);
        }

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

        /* 数据指标卡片 */
        .stats-bar {
            background: #ffffff;
            padding: 40px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            text-align: center;
        }

        .stat-card h3 {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 600;
        }

        /* 关于我们与平台介绍 */
        .about-section {
            background: var(--light-bg);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

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

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

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

        .about-feat-card {
            background: #ffffff;
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
        }

        .about-feat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 20px var(--glow-color);
        }

        .about-feat-card h4 {
            color: var(--dark);
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .about-feat-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* 平台服务 - 模型云 */
        .services-section {
            background: #ffffff;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }

        .model-tag {
            background: var(--light-bg);
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .model-tag:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            border-color: transparent;
            transform: scale(1.05);
            box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
        }

        /* 一站式AIGC制作场景 */
        .scenes-section {
            background: var(--light-bg);
        }

        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .scene-card {
            background: #ffffff;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            padding: 30px;
            transition: var(--transition);
        }

        .scene-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(15, 23, 42, 0.08);
            border-color: var(--secondary);
        }

        .scene-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(79, 172, 254, 0.1);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            font-weight: bold;
        }

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

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

        /* 解决方案区 & 横版素材 */
        .solutions-section {
            background: #ffffff;
        }

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

        .solution-img-wrapper {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            border: 1px solid var(--border-color);
        }

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

        .solution-item {
            margin-bottom: 24px;
            display: flex;
            gap: 16px;
        }

        .solution-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }

        .solution-info h4 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 6px;
        }

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

        /* 服务网络 & 步骤 */
        .network-section {
            background: var(--light-bg);
        }

        .steps-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .step-node {
            text-align: center;
            position: relative;
        }

        .step-badge {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: #ffffff;
            border: 3px solid var(--primary);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 auto 20px;
            box-shadow: 0 8px 20px rgba(0, 242, 254, 0.2);
        }

        .step-node h4 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 8px;
        }

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

        /* 案例中心 */
        .cases-section {
            background: #ffffff;
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: #ffffff;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.08);
            border-color: var(--primary);
        }

        .case-img-container {
            position: relative;
            overflow: hidden;
            background: var(--light-bg);
            aspect-ratio: 16/10;
        }

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

        .case-body {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(79, 172, 254, 0.1);
            color: var(--secondary);
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .case-body h3 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 8px;
        }

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

        /* 对比评测 - 极致鲜亮设计 */
        .review-section {
            background: linear-gradient(185deg, #ffffff 0%, var(--light-bg) 100%);
        }

        .rating-box {
            background: linear-gradient(135deg, var(--dark) 0%, #1e293b 100%);
            color: #ffffff;
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            max-width: 500px;
            margin: 0 auto 50px;
            box-shadow: 0 15px 35px rgba(15, 23, 42, 0.15);
            border: 1px solid rgba(0, 242, 254, 0.3);
        }

        .rating-score {
            font-size: 5rem;
            font-weight: 900;
            line-height: 1;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .rating-max {
            font-size: 1.5rem;
            color: var(--text-muted);
        }

        .stars {
            color: #ffb800;
            font-size: 1.5rem;
            margin: 10px 0;
        }

        .compare-table-wrapper {
            overflow-x: auto;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            background: #ffffff;
        }

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

        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background-color: var(--light-bg);
            color: var(--dark);
            font-weight: 700;
        }

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

        .compare-table td.highlight {
            background-color: rgba(0, 242, 254, 0.03);
            font-weight: 600;
            color: var(--secondary);
        }

        /* Token 比价 */
        .pricing-section {
            background: #ffffff;
        }

        .pricing-table-wrapper {
            overflow-x: auto;
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

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

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

        .pricing-table th {
            background-color: var(--light-bg);
            color: var(--dark);
        }

        /* 培训中心 */
        .training-section {
            background: var(--light-bg);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }

        .train-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            transition: var(--transition);
        }

        .train-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 10px 20px rgba(255, 0, 127, 0.08);
        }

        .train-badge {
            display: inline-block;
            padding: 4px 8px;
            background: rgba(255, 0, 127, 0.08);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        /* FAQ折叠面板 */
        .faq-section {
            background: #ffffff;
        }

        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            padding: 8px 0;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

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

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
            color: var(--accent);
        }

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

        .faq-answer p {
            padding: 8px 0 16px;
        }

        /* 用户评论区 */
        .reviews-section {
            background: var(--light-bg);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .review-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
        }

        .user-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
        }

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

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

        .review-body {
            color: var(--text-main);
            font-size: 0.95rem;
        }

        /* 资讯与知识库 */
        .news-section {
            background: #ffffff;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .news-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            transition: var(--transition);
        }

        .news-card:hover {
            border-color: var(--secondary);
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-card h3 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-link {
            color: var(--secondary);
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 联系我们 & 加盟代理表单 */
        .contact-section {
            background: var(--light-bg);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info-panel {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
        }

        .contact-item-detail {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
        }

        .contact-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(0, 242, 254, 0.1);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }

        .qr-codes {
            display: flex;
            gap: 30px;
            margin-top: 30px;
            flex-wrap: wrap;
        }

        .qr-item {
            text-align: center;
        }

        .qr-item img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            margin-bottom: 8px;
        }

        .qr-item span {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: block;
        }

        .form-panel {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid var(--border-color);
            border-radius: 8px;
            outline: none;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 8px rgba(79, 172, 254, 0.2);
        }

        .form-btn {
            width: 100%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            font-weight: 700;
            padding: 14px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 242, 254, 0.4);
        }

        /* 侧边悬浮及返回顶部 */
        .floating-widget {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #ffffff;
            border: 1px solid var(--border-color);
            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;
        }

        .float-btn:hover {
            background: var(--secondary);
            color: #ffffff;
            transform: scale(1.05);
        }

        .float-btn-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            display: none;
        }

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

        .float-btn-qr img {
            width: 120px;
            height: 120px;
        }

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

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

        .footer-logo img {
            height: 40px;
            margin-bottom: 16px;
        }

        .footer-info p {
            font-size: 0.9rem;
            margin-bottom: 8px;
        }

        .footer-links h4 {
            color: #ffffff;
            margin-bottom: 16px;
            font-size: 1.1rem;
        }

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

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

        .footer-links a {
            font-size: 0.9rem;
        }

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

        .friend-links {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            margin-bottom: 20px;
            font-size: 0.85rem;
        }

        .friend-links a {
            margin-right: 15px;
            color: #64748b;
        }

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

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
        }

        /* 移动端响应式 */
        @media (max-width: 991px) {
            .about-grid, .solutions-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: #ffffff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
        }