* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
        }

        body {
            background-color: #f5f5f7;
            color: #1d1d1f;
            line-height: 1.4;
            overflow-x: hidden;
        }

        /* 苹果风格导航栏 */
        .apple-navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
            padding: 0 10px;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 48px;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 700;
            color: #000;
            text-decoration: none;
            display: flex;
            align-items: center;
        }

        .nav-logo i {
            margin-right: 8px;
            color: #0071e3;
        }

        .nav-links {
            display: flex;
            list-style: none;
            height: 100%;
            background: transparent;
            /* 默认状态下透明背景 */
        }

        .nav-links.mobile-open {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 48px;
            left: 0;
            width: 100%;
            background: rgba(245, 245, 247, 0.95);
            /* 确保有浅灰色背景 */
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 0;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            z-index: 1002;
            border-radius: 0 0 20px 20px;
        }

        .nav-item {
            position: relative;
            height: 100%;
        }

        .nav-link {
            display: flex;
            align-items: center;
            padding: 0 16px;
            height: 100%;
            color: #1d1d1f;
            text-decoration: none;
            font-size: 13px;
            font-weight: 400;
            transition: color 0.3s;
            position: relative;
        }

        .nav-link:hover {
            color: #0071e3;
        }

        /* 宽幅下拉菜单 */
        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background: white;
            min-width: 100%;
            width: 900px;
            /* 固定宽度而不是全屏宽度 */
            max-width: 900px;
            /* 限制最大宽度 */
            border-radius: 0 0 16px 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            padding: 20px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 1001;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            overflow-x: auto;
            /* 添加横向滚动条 */
            max-height: 60vh;
            /* 设置最大高度，超过则出现纵向滚动 */
        }

        .nav-item:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-content {
            width: 100%;
            /* 内容宽度适应容器 */
            display: flex;
            padding: 0 40px;
        }

        .dropdown-column {
            flex: 1;
            min-width: 200px;
            padding: 0 20px;
        }

        .dropdown-column h3 {
            font-size: 16px;
            font-weight: 600;
            color: #86868b;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid #d2d2d7;
        }

        .dropdown-item {
            display: block;
            padding: 10px 0;
            color: #1d1d1f;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
            display: flex;
            align-items: center;
        }

        .dropdown-item:hover {
            color: #0071e3;
        }

        .dropdown-item i {
            margin-right: 10px;
            width: 16px;
            text-align: center;
        }

        .dropdown-divider {
            height: 1px;
            background-color: #d2d2d7;
            margin: 12px 0;
        }

        /* 二级下拉菜单 */
        .dropdown-submenu {
            position: relative;
        }

        .dropdown-submenu .submenu {
            position: absolute;
            left: 100%;
            top: 0;
            background: white;
            min-width: 250px;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            padding: 10px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateX(10px);
            transition: all 0.3s ease;
            z-index: 1002;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }

        .dropdown-submenu:hover .submenu {
            opacity: 1;
            visibility: visible;
            transform: translateX(0);
        }

        .nav-actions {
            display: flex;
            align-items: center;
        }

        .nav-icon {
            margin-left: 16px;
            color: #1d1d1f;
            font-size: 16px;
            cursor: pointer;
            transition: color 0.3s;
        }

        .nav-icon:hover {
            color: #0071e3;
        }

        /* 英雄区域 */
        .hero-section {
            padding-top: 120px;
            text-align: center;
            background: linear-gradient(135deg, #ffffff 0%, #f5f5f7 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            position: relative;
            overflow: hidden;
            color: #333;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.05) 100%);
            z-index: 0;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 900px;
            padding: 0 20px;
        }

        .hero-title {
            font-size: 4.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.1;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            letter-spacing: -0.5px;
            color: #1d1d1f;
            /* 添加深色文字 */
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
            /* 减少文字阴影强度 */
        }

        .hero-subtitle {
            font-size: 2.2rem;
            font-weight: 600;
            margin-bottom: 30px;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            letter-spacing: -0.3px;
            color: #333;
            /* 添加更深的颜色 */
        }

        .hero-tagline {
            font-size: 1.3rem;
            margin-bottom: 40px;
            line-height: 1.6;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
            opacity: 0.95;
            color: #4a4a4a;
            /* 添加更明确的颜色 */
        }

        .hero-highlight {
            display: inline-flex;
            align-items: center;
            padding: 14px 30px;
            background: rgba(0, 0, 0, 0.7);
            /* 改为深色背景提高对比度 */
            backdrop-filter: blur(10px);
            border-radius: 50px;
            font-size: 1.1rem;
            border: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            margin-bottom: 30px;
        }

        .hero-highlight:hover {
            background: rgba(0, 0, 0, 0.8);
            /* 悬停时更深的背景 */
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
        }

        .hero-highlight i {
            color: #0edf7e;
            /* 保持图标颜色 */
        }

        .hero-highlight,
        .hero-highlight span {
            color: white;
            /* 确保文字为白色 */
        }

        .hero-buttons {
            margin-top: 20px;
            display: flex;
            gap: 20px;
            justify-content: center;
        }

        .hero-btn {
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .primary-btn {
            background: #0071e3;
            /* 使用品牌蓝色背景 */
            color: white;
            /* 白色文字 */
            font-weight: 600;
        }

        .primary-btn:hover {
            background: #005bb5;
            /* 悬停时加深蓝色 */
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }

        .secondary-btn {
            background: transparent;
            border: 2px solid #0071e3;
            /* 使用品牌蓝色边框 */
            color: #0071e3;
            /* 文字也是蓝色 */
        }

        .secondary-btn:hover {
            background: rgba(0, 113, 227, 0.1);
            /* 悬停时添加浅蓝色背景 */
            transform: translateY(-3px);
        }

        /* 波浪底部效果 */
        .wave-bottom {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 100px;
            background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 1200 120" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="none"><path d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" fill="rgba(255,255,255,0.1)"/></svg>');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        /* 内容区域 */
        .content-section {
            max-width: 1200px;
            margin: 80px auto;
            padding: 0 20px;
        }

        .section-title {
            font-size: 40px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 60px;
            color: #1d1d1f;
        }

        .section-subtitle {
            font-size: 18px;
            text-align: center;
            margin-bottom: 60px;
            color: #515154;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            padding: 0 20px;
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
            margin-bottom: 80px;
        }

        .card {
            background-color: #fff;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .card-image {
            height: 220px;
            overflow: hidden;
        }

        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .card-content {
            padding: 24px;
        }

        .card-title {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #1d1d1f;
        }

        .card-description {
            font-size: 15px;
            color: #515154;
            line-height: 1.5;
            margin-bottom: 20px;
        }

        .card-link {
            color: #0071e3;
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
        }

        .card-link i {
            margin-left: 6px;
            transition: transform 0.3s;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* 特色产品区域样式 */
        .featured-products {
            padding: 80px 0;
            background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
            margin: 80px 0;
            display: block;
            width: 100%;
            overflow: visible;
        }
        
        .featured-products .section-title {
            font-size: 40px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 20px;
            color: #1d1d1f;
        }
        
        .featured-products .section-subtitle {
            font-size: 18px;
            text-align: center;
            margin-bottom: 60px;
            color: #515154;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            padding: 0 20px;
        }
        
        .featured-products .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
            margin-bottom: 0;
        }

        /* 服务流程样式 */
        .how-it-works-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 80px 0;
            margin: 80px 0;
        }

        .service-process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .service_box {
            text-align: center;
            padding: 30px 20px;
            background: white;
            border-radius: 18px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .service_box:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .service-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, #0edf7e 0%, #007bff 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            transition: all 0.3s ease;
        }

        .service_box:hover .service-icon {
            transform: scale(1.1) rotate(5deg);
            box-shadow: 0 10px 20px rgba(14, 223, 126, 0.3);
        }

        .title {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #1d1d1f;
        }

        .text {
            font-size: 15px;
            color: #515154;
            line-height: 1.5;
        }

        /* 技术优势样式 */
        .tech-advantages-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
            margin: 80px 0;
        }

        .tech-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .tech-advantage-card {
            background: white;
            border-radius: 18px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            height: 100%;
        }

        .tech-advantage-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .tech-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, #0edf7e 0%, #007bff 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            transition: all 0.3s ease;
        }

        .tech-advantage-card:hover .tech-icon {
            transform: scale(1.1) rotate(5deg);
            box-shadow: 0 10px 20px rgba(14, 223, 126, 0.3);
        }

        .tech-features {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-top: 15px;
        }

        .feature-tag {
            background: rgba(14, 223, 126, 0.1);
            color: #0edf7e;
            padding: 6px 12px;
            border-radius: 15px;
            font-size: 0.8rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .feature-tag:hover {
            background: rgba(14, 223, 126, 0.2);
            transform: translateY(-2px);
        }

        /* 客户评价样式 */
        .testimonials-section {
            padding: 80px 0;
            margin: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }

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

        .testimonials-3d-container {
            position: relative;
            height: 500px;
            width: 100%;
            overflow: hidden;
            border-radius: 20px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            margin: 40px 0;
        }

        #testimonials-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            background: transparent;
        }

        .testimonial-content-overlay {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 2;
            width: 80%;
            max-width: 600px;
        }

        .testimonial-card {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
            position: absolute;
            width: 100%;
            top: 0;
            left: 0;
        }

        .testimonial-card.active {
            opacity: 1;
            transform: translateY(0);
        }

        .testimonial-info {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        .client-name {
            color: #333;
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 5px;
        }

        .client-position {
            color: #666;
            font-size: 14px;
            margin-bottom: 15px;
        }

        .ratings {
            margin-bottom: 15px;
        }

        .ratings i {
            color: #ddd;
            font-size: 16px;
            margin: 0 1px;
        }

        .ratings i.active {
            color: #ffc107;
        }

        .testimonial-text {
            color: #555;
            font-size: 15px;
            line-height: 1.6;
            margin: 0;
            font-style: italic;
        }

        .testimonial-controls {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .control-btn {
            background: rgba(255, 255, 255, 0.2);
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            cursor: pointer;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .control-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            border-color: rgba(255, 255, 255, 0.5);
            transform: scale(1.1);
        }

        .testimonial-indicators {
            display: flex;
            gap: 8px;
        }

        .indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .indicator.active {
            background: white;
            transform: scale(1.2);
        }

        /* 行业应用样式 */
        .industry-applications-section {
            padding: 80px 0;
            margin: 80px 0;
            background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
        }

        .industry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .industry-card {
            background: white;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            position: relative;
            height: 100%;
        }

        .industry-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .industry-image {
            height: 200px;
            position: relative;
            overflow: hidden;
        }

        .industry-image div {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .industry-content {
            padding: 24px;
        }

        .industry-stats {
            display: flex;
            justify-content: space-around;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }

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

        .stat-number {
            display: block;
            font-size: 1.8rem;
            font-weight: 700;
            color: #1d1d1f;
        }

        .stat-label {
            display: block;
            font-size: 0.9rem;
            color: #515154;
        }

        /* 合作伙伴样式 */
        .partners-section {
            padding: 80px 0;
            margin: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .partner-item {
            background: white;
            border-radius: 18px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .partner-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }

        .partner-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 15px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
        }

        .partner-name {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 5px;
            color: #1d1d1f;
        }

        .partner-type {
            font-size: 14px;
            color: #515154;
        }

        /* 可折叠页脚 */
        .apple-footer {
            background: linear-gradient(135deg, #f5f5f7 0%, #e8e8ed 100%);
            color: #515154;
            padding-top: 40px;
        }

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

        .footer-links {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .footer-column {
            margin-bottom: 30px;
        }

        .footer-title {
            font-size: 12px;
            font-weight: 600;
            color: #1d1d1f;
            margin-bottom: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer-title::after {
            content: '+';
            font-size: 18px;
            transition: transform 0.3s;
        }

        .footer-title.active::after {
            transform: rotate(45deg);
            content: '×';
        }

        .footer-links-list {
            list-style: none;
            overflow: hidden;
            max-height: 0;
            transition: max-height 0.5s ease-out;
        }

        .footer-links-list.expanded {
            max-height: 500px;
        }

        .footer-link-item {
            margin-bottom: 10px;
        }

        .footer-link {
            color: #515154;
            text-decoration: none;
            font-size: 12px;
            transition: color 0.3s;
        }

        .footer-link:hover {
            color: #0071e3;
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid #d2d2d7;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-copyright {
            font-size: 12px;
            color: #86868b;
        }

        .footer-legal {
            display: flex;
            gap: 20px;
        }

        .footer-legal-link {
            color: #515154;
            text-decoration: none;
            font-size: 12px;
        }

        .footer-legal-link:hover {
            color: #0071e3;
            text-decoration: underline;
        }

        .footer-locale {
            display: flex;
            align-items: center;
            color: #515154;
            font-size: 12px;
        }

        .footer-locale i {
            margin-right: 6px;
        }

        /* 滚动条样式 */
        .dropdown-menu::-webkit-scrollbar {
            height: 8px;
        }

        .dropdown-menu::-webkit-scrollbar-track {
            background: rgba(0, 0, 0, 0.05);
            border-radius: 4px;
        }

        .dropdown-menu::-webkit-scrollbar-thumb {
            background: rgba(0, 0, 0, 0.2);
            border-radius: 4px;
        }

        .dropdown-menu::-webkit-scrollbar-thumb:hover {
            background: rgba(0, 0, 0, 0.3);
        }

                /* 新增的产品展示样式 */
        .additional-products {
            padding: 80px 0;
            background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
            margin: 80px 0;
        }

        .product-showcase {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .product-card {
            display: flex;
            background: white;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            margin-bottom: 40px;
            align-items: center;
        }

        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .product-image {
            flex: 1;
            height: 350px;
            overflow: hidden;
        }

        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .product-card:hover .product-image img {
            transform: scale(1.05);
        }

        .product-info {
            flex: 1;
            padding: 40px;
        }

        .product-title {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #1d1d1f;
        }

        .product-description {
            font-size: 16px;
            color: #515154;
            line-height: 1.6;
            margin-bottom: 25px;
        }

        .product-link {
            color: #0071e3;
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            transition: all 0.3s ease;
        }

        .product-link i {
            margin-left: 8px;
            transition: transform 0.3s;
        }

        .product-link:hover {
            color: #005bb5;
        }

        .product-link:hover i {
            transform: translateX(5px);
        }

        .product-card.reverse {
            flex-direction: row-reverse;
        }

        /* 新增的重大事件样式 */
        .major-events-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            margin: 80px 0;
        }

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

        .event-card {
            display: flex;
            background: white;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            margin-bottom: 40px;
            align-items: center;
        }

        .event-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .event-image {
            flex: 1;
            height: 350px;
            overflow: hidden;
        }

        .event-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .event-card:hover .event-image img {
            transform: scale(1.05);
        }

        .event-content {
            flex: 1;
            padding: 40px;
        }

        .event-title {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #1d1d1f;
        }

        .event-description {
            font-size: 16px;
            color: #515154;
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .event-tags {
            display: flex;
            gap: 10px;
            margin-top: 15px;
        }

        .event-tag {
            background: rgba(0, 113, 227, 0.1);
            color: #0071e3;
            padding: 6px 12px;
            border-radius: 15px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        .event-card.reverse {
            flex-direction: row-reverse;
        }

        /* 动画类 */
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .scroll-fade {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }

        .scroll-fade.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-links.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 48px;
                left: 0;
                width: 100%;
                background: rgba(245, 245, 247, 0.95);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                padding: 0;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
                z-index: 1002;
                border-radius: 0 0 20px 20px;
            }

            .nav-item {
                width: 100%;
                border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            }

            .nav-item:last-child {
                border-bottom: none;
            }

            .nav-link {
                display: flex;
                align-items: center;
                padding: 18px 20px;
                height: auto;
                width: 100%;
                color: #1d1d1f;
                text-decoration: none;
                font-size: 16px;
                font-weight: 500;
                transition: background-color 0.3s;
                border-radius: 0;
            }

            .nav-link:hover {
                background-color: rgba(255, 255, 255, 0.4);
                color: #0071e3;
            }

            /* 移动端下拉菜单样式 */
            .dropdown-menu {
                position: static;
                width: 100%;
                max-width: 100%;
                /* 移动端占满全宽 */
                box-shadow: none;
                border-radius: 0;
                margin-top: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
                background: rgba(240, 240, 242, 0.8);
                left: 0;
                right: 0;
                display: block;
            }

            .dropdown-menu.show {
                max-height: 500px;
                padding: 10px 0;
            }

            .dropdown-content {
                display: block;
                padding: 0 !important;
                width: 100% !important;
            }

            .dropdown-column {
                padding: 10px 20px !important;
                border-bottom: 1px solid #d2d2d7;
                margin-bottom: 10px;
            }

            .dropdown-column h3 {
                font-size: 14px !important;
                padding-left: 0 !important;
                padding-right: 0 !important;
            }

            /* 二级下拉菜单在移动端的样式 */
            .dropdown-submenu .submenu {
                position: static;
                left: 0;
                width: 100%;
                margin-left: 0;
                box-shadow: none;
                border-radius: 0;
                margin-top: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                background: rgba(235, 235, 237, 0.8);
                margin-left: 15px;
                border-left: 2px solid #0071e3;
            }

            .dropdown-submenu .submenu.show {
                max-height: 300px;
                padding: 10px 0;
            }

            /* 三级导航项样式 */
            .dropdown-submenu .submenu .dropdown-item {
                padding: 12px 45px;
                font-size: 14px;
                background: rgba(230, 230, 232, 0.8);
            }

            .dropdown-submenu .submenu .dropdown-item:hover {
                background-color: rgba(0, 0, 0, 0.05);
            }

            .submenu-trigger {
                display: flex;
                justify-content: space-between;
                align-items: center;
            }

            .submenu-arrow {
                transition: transform 0.3s ease;
                font-size: 10px;
            }

            .submenu-arrow.rotated {
                transform: rotate(90deg);
            }

            .hero-title {
                font-size: 40px;
            }

            .hero-subtitle {
                font-size: 22px;
            }

            .hero-tagline {
                font-size: 18px;
                padding: 0 20px;
            }

            .card-grid {
                grid-template-columns: 1fr;
                padding: 0 20px;
            }

            .service-process-grid {
                grid-template-columns: 1fr;
                padding: 0 20px;
            }

            .tech-features-grid {
                grid-template-columns: 1fr;
                padding: 0 20px;
            }

            .industry-grid {
                grid-template-columns: 1fr;
                padding: 0 20px;
            }

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

            .footer-column {
                margin-bottom: 10px;
            }

            .footer-title {
                border-bottom: 1px solid #424245;
                padding: 12px 0;
                margin-bottom: 0;
            }

            .footer-links-list {
                padding-left: 10px;
            }

            .footer-link-item {
                margin-bottom: 8px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }

            /* 客户评价响应式 */
            .testimonials-3d-container {
                height: 450px;
            }

            .testimonial-info {
                padding: 25px 15px;
            }

            .client-name {
                font-size: 18px;
            }

            .testimonial-text {
                font-size: 14px;
            }

            .control-btn {
                width: 35px;
                height: 35px;
            }

            .industry-stats {
                flex-direction: column;
                gap: 15px;
            }

            .stat-item {
                display: flex;
                justify-content: space-between;
                align-items: center;
                text-align: left;
            }

            .stat-number {
                margin-bottom: 0;
            }
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: #1d1d1f;
            font-size: 24px;
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
        }

        /* 移动端底部导航 */
        .bottom-navigation {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            display: none;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid rgba(0, 0, 0, 0.1);
            padding: 8px 0;
            z-index: 1000;
        }

        .bottom-nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-around;
            align-items: center;
            width: 100%;
        }

        .nav-item {
            flex: 1;
            text-align: center;
        }

        .nav-link-mobile {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-decoration: none;
            color: #86868b;
            font-size: 1.0rem;
            transition: all 0.3s ease;
            padding: 4px 0;
        }

        .nav-link-mobile.active,
        .nav-link-mobile:hover {
            color: #0071e3;
        }

        .nav-icon {
            font-size: 1.4rem;
            /* 减小图标大小 */
            margin-bottom: 2px;
        }

        .nav-text {
            font-size: 0.8rem;
        }

        @media (max-width: 768px) {
            .bottom-navigation {
                display: flex;
            }

            .apple-footer {
                padding-bottom: 70px;
                /* 为底部导航留出空间 */
            }
        }