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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: #ffffff;
        }

        /* 导航栏 */
        .gcs5s-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
            border-bottom: 1px solid #e8e8e8;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 50px;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .gcs5s-logo {
            display: flex;
            align-items: center;
            height: 100%;
        }

        .gcs5s-logo img {
            height: 40px;
            width: auto;
        }

        .gcs5s-nav-links {
            display: flex;
            gap: 40px;
            list-style: none;
        }

        .gcs5s-nav-links a {
            text-decoration: none;
            color: #333;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
        }

        .gcs5s-nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, #1890ff, #00d4ff);
            transition: width 0.3s ease;
        }

        .gcs5s-nav-links a:hover {
            color: #1890ff;
        }

        .gcs5s-nav-links a:hover::after {
            width: 100%;
        }

        .gcs5s-download-btn {
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            color: white;
            padding: 10px 24px;
            border-radius: 25px;
            text-decoration: none;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(24, 144, 255, 0.3);
        }

        .gcs5s-download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(24, 144, 255, 0.4);
        }

        /* Hero区域 */
        .gcs5s-hero {
            margin-top: 70px;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            position: relative;
            overflow: hidden;
            padding: 80px 50px;
            min-height: 700px;
            display: flex;
            align-items: center;
        }

        .gcs5s-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(24, 144, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            animation: gcs5s-float 8s ease-in-out infinite;
        }

        .gcs5s-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            animation: gcs5s-float 10s ease-in-out infinite reverse;
        }

        @keyframes gcs5s-float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(30px); }
        }

        .gcs5s-hero-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .gcs5s-hero-content h1 {
            font-size: 52px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 20px;
            line-height: 1.3;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .gcs5s-hero-content p {
            font-size: 18px;
            color: #555;
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .gcs5s-hero-cta {
            display: flex;
            gap: 20px;
            margin-bottom: 40px;
        }

        .gcs5s-btn-primary {
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            color: white;
            padding: 16px 40px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(24, 144, 255, 0.35);
        }

        .gcs5s-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(24, 144, 255, 0.45);
        }

        .gcs5s-btn-secondary {
            background: white;
            color: #1890ff;
            padding: 16px 40px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            border: 2px solid #1890ff;
            cursor: pointer;
        }

        .gcs5s-btn-secondary:hover {
            background: #f0f5ff;
            transform: translateY(-3px);
        }

        .gcs5s-hero-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 40px;
        }

        .gcs5s-stat-item {
            background: rgba(255, 255, 255, 0.7);
            padding: 20px;
            border-radius: 15px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .gcs5s-stat-number {
            font-size: 28px;
            font-weight: 700;
            color: #1890ff;
            margin-bottom: 8px;
        }

        .gcs5s-stat-label {
            font-size: 14px;
            color: #666;
        }

        .gcs5s-hero-image {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .gcs5s-hero-image img {
            width: 100%;
            max-width: 500px;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
            transition: transform 0.3s ease;
        }

        .gcs5s-hero-image:hover img {
            transform: scale(1.05);
        }

        /* 功能特性区 */
        .gcs5s-features-section {
            padding: 100px 50px;
            background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-section-header {
            text-align: center;
            margin-bottom: 70px;
        }

        .gcs5s-section-title {
            font-size: 42px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 15px;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .gcs5s-section-subtitle {
            font-size: 18px;
            color: #666;
            max-width: 600px;
            margin: 0 auto;
        }

        .gcs5s-features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 60px;
        }

        .gcs5s-feature-card {
            background: white;
            padding: 40px 30px;
            border-radius: 20px;
            border: 1px solid #e8e8e8;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .gcs5s-feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #1890ff 0%, #00d4ff 100%);
            transform: scaleX(0);
            transition: transform 0.3s ease;
            transform-origin: left;
        }

        .gcs5s-feature-card:hover {
            border-color: #1890ff;
            box-shadow: 0 10px 40px rgba(24, 144, 255, 0.15);
            transform: translateY(-8px);
        }

        .gcs5s-feature-card:hover::before {
            transform: scaleX(1);
        }

        .gcs5s-feature-icon {
            font-size: 48px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .gcs5s-feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 15px;
        }

        .gcs5s-feature-card p {
            font-size: 15px;
            color: #666;
            line-height: 1.8;
        }

        /* 统计数据区 */
        .gcs5s-stats-section {
            padding: 100px 50px;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            color: white;
        }

        .gcs5s-stats-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }

        .gcs5s-stats-box {
            padding: 40px 20px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 15px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.3s ease;
        }

        .gcs5s-stats-box:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-5px);
        }

        .gcs5s-stats-number {
            font-size: 42px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .gcs5s-stats-label {
            font-size: 14px;
            opacity: 0.9;
            line-height: 1.6;
        }

        /* 产品展示区 */
        .gcs5s-products-section {
            padding: 100px 50px;
            background: #ffffff;
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }

        .gcs5s-product-showcase {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            border-radius: 20px;
            padding: 40px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .gcs5s-product-showcase::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(24, 144, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .gcs5s-product-showcase:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 50px rgba(24, 144, 255, 0.2);
        }

        .gcs5s-product-header {
            position: relative;
            z-index: 1;
            margin-bottom: 25px;
        }

        .gcs5s-product-icon {
            font-size: 48px;
            margin-bottom: 15px;
            display: inline-block;
        }

        .gcs5s-product-showcase h3 {
            font-size: 22px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 10px;
        }

        .gcs5s-product-highlight {
            display: inline-block;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            color: white;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .gcs5s-product-desc {
            font-size: 15px;
            color: #555;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        /* 场景应用区 */
        .gcs5s-scenarios-section {
            padding: 100px 50px;
            background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-scenarios-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .gcs5s-scenario-card {
            background: white;
            padding: 50px 40px;
            border-radius: 20px;
            border: 2px solid #e8e8e8;
            transition: all 0.3s ease;
            position: relative;
        }

        .gcs5s-scenario-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(24, 144, 255, 0.05) 0%, rgba(0, 212, 255, 0.05) 100%);
            border-radius: 20px;
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
        }

        .gcs5s-scenario-card:hover {
            border-color: #1890ff;
            box-shadow: 0 15px 50px rgba(24, 144, 255, 0.12);
        }

        .gcs5s-scenario-card:hover::before {
            opacity: 1;
        }

        .gcs5s-scenario-icon {
            font-size: 42px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .gcs5s-scenario-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 15px;
            position: relative;
            z-index: 1;
        }

        .gcs5s-scenario-card p {
            font-size: 15px;
            color: #666;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        /* 技术优势区 */
        .gcs5s-tech-section {
            padding: 100px 50px;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: white;
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }

        .gcs5s-tech-card {
            background: linear-gradient(135deg, rgba(24, 144, 255, 0.15) 0%, rgba(0, 212, 255, 0.1) 100%);
            padding: 40px;
            border-radius: 20px;
            border: 1px solid rgba(24, 144, 255, 0.3);
            transition: all 0.3s ease;
        }

        .gcs5s-tech-card:hover {
            border-color: #00d4ff;
            box-shadow: 0 10px 40px rgba(0, 212, 255, 0.2);
            transform: translateY(-8px);
        }

        .gcs5s-tech-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .gcs5s-tech-card p {
            font-size: 15px;
            opacity: 0.9;
            line-height: 1.8;
        }

        /* 用户评价区 */
        .gcs5s-testimonials-section {
            padding: 100px 50px;
            background: #ffffff;
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .gcs5s-testimonial-card {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            padding: 30px;
            border-radius: 20px;
            border: 1px solid rgba(24, 144, 255, 0.1);
            transition: all 0.3s ease;
            position: relative;
        }

        .gcs5s-testimonial-card:hover {
            box-shadow: 0 10px 40px rgba(24, 144, 255, 0.15);
            transform: translateY(-5px);
        }

        .gcs5s-testimonial-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .gcs5s-testimonial-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: white;
        }

        .gcs5s-testimonial-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 3px;
        }

        .gcs5s-testimonial-info p {
            font-size: 12px;
            color: #999;
        }

        .gcs5s-testimonial-rating {
            color: #ffc107;
            margin-bottom: 15px;
            font-size: 14px;
        }

        .gcs5s-testimonial-content {
            font-size: 14px;
            color: #555;
            line-height: 1.8;
            font-style: italic;
        }

        /* 新闻资讯区 */
        .gcs5s-news-section {
            padding: 100px 50px;
            background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .gcs5s-news-item {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            border: 1px solid #e8e8e8;
            transition: all 0.3s ease;
        }

        .gcs5s-news-item:hover {
            border-color: #1890ff;
            box-shadow: 0 10px 40px rgba(24, 144, 255, 0.12);
            transform: translateY(-8px);
        }

        .gcs5s-news-content {
            padding: 30px;
        }

        .gcs5s-news-date {
            display: inline-block;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            color: white;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .gcs5s-news-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .gcs5s-news-item p {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
        }

        /* 合作伙伴区 */
        .gcs5s-partners-section {
            padding: 100px 50px;
            background: white;
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-partners-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .gcs5s-partner-card {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            padding: 40px;
            border-radius: 15px;
            text-align: center;
            border: 1px solid rgba(24, 144, 255, 0.1);
            transition: all 0.3s ease;
        }

        .gcs5s-partner-card:hover {
            border-color: #1890ff;
            box-shadow: 0 10px 40px rgba(24, 144, 255, 0.15);
            transform: translateY(-8px);
        }

        .gcs5s-partner-name {
            font-size: 18px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 8px;
        }

        .gcs5s-partner-type {
            display: inline-block;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            color: white;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .gcs5s-partner-desc {
            font-size: 13px;
            color: #666;
            line-height: 1.6;
        }

        /* 关于区域 */
        .gcs5s-about-section {
            padding: 100px 50px;
            background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .gcs5s-about-text h2 {
            font-size: 36px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .gcs5s-about-text p {
            font-size: 15px;
            color: #666;
            line-height: 2;
            margin-bottom: 20px;
        }

        .gcs5s-about-image img {
            width: 100%;
            border-radius: 20px;
            box-shadow: 0 15px 50px rgba(24, 144, 255, 0.15);
        }

        /* 行动号召区 */
        .gcs5s-cta-section {
            padding: 80px 50px;
            background: linear-gradient(135deg, #1890ff 0%, #0066cc 100%);
            color: white;
            text-align: center;
            max-width: 1400px;
            margin: 0 auto;
            border-radius: 20px;
            margin-bottom: 100px;
        }

        .gcs5s-cta-section h2 {
            font-size: 42px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .gcs5s-cta-section p {
            font-size: 18px;
            opacity: 0.95;
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .gcs5s-cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
        }

        .gcs5s-cta-btn {
            padding: 16px 40px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            border: 2px solid white;
            background: transparent;
            color: white;
            cursor: pointer;
        }

        .gcs5s-cta-btn:hover {
            background: white;
            color: #1890ff;
            transform: translateY(-3px);
        }

        /* 页脚 */
        .gcs5s-footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 60px 50px 40px;
        }

        .gcs5s-footer-wrapper {
            max-width: 1400px;
            margin: 0 auto;
        }

        .gcs5s-footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 50px;
            margin-bottom: 60px;
        }

        .gcs5s-footer-brand {
            grid-column: 1;
        }

        .gcs5s-footer-brand-name {
            font-size: 20px;
            font-weight: 700;
            color: white;
            margin-bottom: 15px;
        }

        .gcs5s-footer-brand p {
            font-size: 13px;
            color: #999;
            line-height: 1.8;
        }

        .gcs5s-footer-section h4 {
            font-size: 14px;
            font-weight: 700;
            color: white;
            margin-bottom: 20px;
        }

        .gcs5s-footer-links {
            list-style: none;
        }

        .gcs5s-footer-links li {
            margin-bottom: 12px;
        }

        .gcs5s-footer-links a {
            color: #999;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.3s ease;
        }

        .gcs5s-footer-links a:hover {
            color: #1890ff;
        }

        .gcs5s-footer-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.1);
            margin-bottom: 40px;
        }

        .gcs5s-footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #999;
        }

        .gcs5s-footer-legal {
            display: flex;
            gap: 30px;
        }

        .gcs5s-footer-legal a {
            color: #999;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .gcs5s-footer-legal a:hover {
            color: #1890ff;
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .gcs5s-navbar {
                padding: 0 30px;
            }

            .gcs5s-hero-wrapper {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .gcs5s-hero {
                padding: 60px 30px;
                min-height: auto;
            }

            .gcs5s-features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gcs5s-products-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gcs5s-scenarios-grid {
                grid-template-columns: 1fr;
            }

            .gcs5s-tech-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gcs5s-testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gcs5s-news-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gcs5s-partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gcs5s-about-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .gcs5s-navbar {
                height: 60px;
                padding: 0 20px;
            }

            .gcs5s-nav-links {
                gap: 20px;
            }

            .gcs5s-nav-links a {
                font-size: 13px;
            }

            .gcs5s-hero {
                padding: 40px 20px;
            }

            .gcs5s-hero-content h1 {
                font-size: 36px;
            }

            .gcs5s-section-title {
                font-size: 32px;
            }

            .gcs5s-features-grid,
            .gcs5s-products-grid,
            .gcs5s-tech-grid {
                grid-template-columns: 1fr;
            }

            .gcs5s-stats-container {
                grid-template-columns: repeat(2, 1fr);
            }

            .gcs5s-testimonials-grid,
            .gcs5s-news-grid,
            .gcs5s-partners-grid {
                grid-template-columns: 1fr;
            }

            .gcs5s-footer-content {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }

            .gcs5s-footer-brand {
                grid-column: 1 / -1;
            }

            .gcs5s-footer-bottom {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            .gcs5s-navbar {
                flex-direction: column;
                height: auto;
                padding: 10px 20px;
            }

            .gcs5s-nav-links {
                flex-direction: column;
                gap: 10px;
                width: 100%;
            }

            .gcs5s-hero {
                margin-top: 0;
                padding: 30px 20px;
            }

            .gcs5s-hero-content h1 {
                font-size: 28px;
            }

            .gcs5s-hero-content p {
                font-size: 16px;
            }

            .gcs5s-hero-cta {
                flex-direction: column;
            }

            .gcs5s-section-title {
                font-size: 28px;
            }

            .gcs5s-features-section,
            .gcs5s-products-section,
            .gcs5s-scenarios-section,
            .gcs5s-tech-section,
            .gcs5s-testimonials-section,
            .gcs5s-news-section,
            .gcs5s-partners-section,
            .gcs5s-about-section {
                padding: 60px 20px;
            }

            .gcs5s-footer-content {
                grid-template-columns: 1fr;
            }
        }

        /* 加载动画 */
        @keyframes gcs5s-fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .gcs5s-feature-card,
        .gcs5s-product-showcase,
        .gcs5s-scenario-card,
        .gcs5s-tech-card,
        .gcs5s-testimonial-card,
        .gcs5s-news-item,
        .gcs5s-partner-card {
            animation: gcs5s-fadeIn 0.6s ease-out forwards;
            opacity: 0;
        }

        .gcs5s-feature-card:nth-child(1) { animation-delay: 0.1s; }
        .gcs5s-feature-card:nth-child(2) { animation-delay: 0.2s; }
        .gcs5s-feature-card:nth-child(3) { animation-delay: 0.3s; }
        .gcs5s-feature-card:nth-child(4) { animation-delay: 0.4s; }
        .gcs5s-feature-card:nth-child(5) { animation-delay: 0.5s; }
        .gcs5s-feature-card:nth-child(6) { animation-delay: 0.6s; }