/* 基础样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            color: #333;
            background-color: #fff;
        }
        
        /* 颜色变量 */
        :root {
            --primary-color: #165DFF;
            --secondary-color: #36BFFA;
            --accent-color: #722ED1;
            --dark-color: #1D2129;
            --light-color: #F2F3F5;
            --text-color: #4E5969;
        }
        
        /* 工具类 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            color: white;
        }
        
        .btn-primary:hover {
            background-color: #0E42D2;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(22, 93, 255, 0.2);
        }
        
        .btn-secondary {
            background-color: white;
            color: var(--primary-color);
            border: 1px solid var(--primary-color);
        }
        
        .btn-secondary:hover {
            background-color: #F5F8FF;
            transform: translateY(-2px);
        }
        
        .text-center {
            text-align: center;
        }
        
        .section-title {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--dark-color);
        }
        
        .section-subtitle {
            font-size: 18px;
            color: var(--text-color);
            max-width: 700px;
            margin: 0 auto 64px auto;
        }
        
        .card {
            background-color: white;
            border-radius: 16px;
            padding: 32px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        /* 导航栏 */
        header {
            position: sticky;
            top: 0;
            background-color: white;
            z-index: 100;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--primary-color);
            border-radius: 8px;
            display: flex;
            justify-content: center;
            align-items: center;
            color: white;
        }
        
        .nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 500;
            transition: color 0.3s ease;
        }
        
        .nav-links a:hover {
            color: var(--primary-color);
        }
        
        .nav-actions {
            display: flex;
            gap: 16px;
        }
        
        .mobile-menu-button {
            display: none;
            font-size: 24px;
            cursor: pointer;
        }
        
        .mobile-menu {
            display: none;
            position: absolute;
            top: 80px;
            left: 0;
            width: 100%;
            background-color: white;
            padding: 16px;
            box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
            animation: slideDown 0.3s ease forwards;
        }
        
        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .mobile-menu ul {
            list-style: none;
        }
        
        .mobile-menu li {
            margin-bottom: 16px;
        }
        
        .mobile-menu a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 500;
        }
        
        /* 英雄区 */
        .hero {
            padding: 120px 0;
            background: linear-gradient(135deg, #F5F8FF 0%, #E8F3FF 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background-color: rgba(22, 93, 255, 0.05);
            border-radius: 50%;
            z-index: 0;
        }
        
        .hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 300px;
            height: 300px;
            background-color: rgba(54, 191, 250, 0.05);
            border-radius: 50%;
            z-index: 0;
        }
        
        .hero-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .hero-text {
            max-width: 550px;
        }
        
        .hero-title {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--dark-color);
            line-height: 1.2;
        }
        
        .hero-title span {
            color: var(--primary-color);
        }
        
        .hero-description {
            font-size: 20px;
            color: var(--text-color);
            margin-bottom: 40px;
            line-height: 1.6;
        }
        
        .hero-actions {
            display: flex;
            gap: 20px;
        }
        
        .hero-image {
            max-width: 500px;
            width: 100%;
            position: relative;
        }
        
        .hero-image img {
            width: 100%;
            border-radius: 24px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            animation: float 6s ease-in-out infinite;
        }
        
        @keyframes float {
            0% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-20px);
            }
            100% {
                transform: translateY(0px);
            }
        }
        
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 60px;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 8px;
        }
        
        .stat-label {
            color: var(--text-color);
        }
        
        /* 特性区 */
        .features {
            padding: 120px 0;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        
        .feature-card {
            background-color: white;
            border-radius: 16px;
            padding: 32px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            border: 1px solid #F2F3F5;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            border-color: rgba(22, 93, 255, 0.1);
        }
        
        .feature-icon {
            width: 64px;
            height: 64px;
            background-color: rgba(22, 93, 255, 0.1);
            border-radius: 12px;
            display: flex;
            justify-content: center;
            align-items: center;
            color: var(--primary-color);
            font-size: 28px;
            margin-bottom: 24px;
        }
        
        .feature-title {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--dark-color);
        }
        
        .feature-description {
            color: var(--text-color);
            line-height: 1.6;
        }
        
        /* 安全特性区 */
        .security {
            padding: 120px 0;
            background-color: #FAFAFA;
        }
        
        .security-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 64px;
        }
        
        .security-image {
            max-width: 500px;
            width: 100%;
        }
        
        .security-image img {
            width: 100%;
            border-radius: 24px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        }
        
        .security-text {
            max-width: 550px;
        }
        
        .security-title {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--dark-color);
        }
        
        .security-list {
            list-style: none;
            margin-top: 32px;
        }
        
        .security-item {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
        }
        
        .security-icon {
            width: 40px;
            height: 40px;
            background-color: rgba(22, 93, 255, 0.1);
            border-radius: 8px;
            display: flex;
            justify-content: center;
            align-items: center;
            color: var(--primary-color);
            flex-shrink: 0;
        }
        
        .security-item-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--dark-color);
        }
        
        .security-item-description {
            color: var(--text-color);
        }
        
        /* 应用场景 */
        .use-cases {
            padding: 120px 0;
        }
        
        .use-cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        
        .use-case-card {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            height: 300px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .use-case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .use-case-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .use-case-card:hover .use-case-image {
            transform: scale(1.05);
        }
        
        .use-case-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 24px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0));
            color: white;
        }
        
        .use-case-title {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        
        .use-case-description {
            color: rgba(255, 255, 255, 0.8);
        }
        
        /* 跨平台支持 */
        .cross-platform {
            padding: 120px 0;
            background: linear-gradient(135deg, #F5F8FF 0%, #E8F3FF 100%);
        }
        
        .platforms {
            display: flex;
            justify-content: center;
            gap: 64px;
            margin-top: 64px;
        }
        
        .platform {
            text-align: center;
        }
        
        .platform-icon {
            width: 80px;
            height: 80px;
            background-color: white;
            border-radius: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            color: var(--primary-color);
            font-size: 36px;
            margin: 0 auto 24px auto;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .platform:hover .platform-icon {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .platform-name {
            font-size: 20px;
            font-weight: 600;
            color: var(--dark-color);
        }
        
        /* 用户评价 */
        .testimonials {
            padding: 120px 0;
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        
        .testimonial-card {
            background-color: white;
            border-radius: 16px;
            padding: 32px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid #F2F3F5;
            transition: all 0.3s ease;
        }
        
        .testimonial-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            border-color: rgba(22, 93, 255, 0.1);
        }
        
        .testimonial-content {
            margin-bottom: 24px;
        }
        
        .testimonial-text {
            color: var(--text-color);
            line-height: 1.6;
            font-style: italic;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        
        .author-image {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            overflow: hidden;
            flex-shrink: 0;
        }
        
        .author-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .author-info {
            display: flex;
            flex-direction: column;
        }
        
        .author-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark-color);
        }
        
        .author-position {
            color: var(--text-color);
            font-size: 14px;
        }
        
        /* 资讯版块 */
        .news {
            padding: 120px 0;
            background-color: #FAFAFA;
        }
        
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        
        .news-card {
            background-color: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .news-image {
            height: 200px;
            overflow: hidden;
        }
        
        .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .news-card:hover .news-image img {
            transform: scale(1.05);
        }
        
        .news-content {
            padding: 24px;
        }
        
        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 12px;
        }
        
        .news-date, .news-category {
            color: var(--text-color);
            font-size: 14px;
        }
        
        .news-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--dark-color);
            transition: color 0.3s ease;
        }
        
        .news-card:hover .news-title {
            color: var(--primary-color);
        }
        
        .news-description {
            color: var(--text-color);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        
        .news-link {
            color: var(--primary-color);
            font-weight: 500;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            transition: transform 0.3s ease;
        }
        
        .news-link:hover {
            transform: translateX(5px);
        }
        
        .news-link i {
            margin-left: 8px;
        }
        
        /* 下载区 */
        .download {
            padding: 120px 0;
            background-color: var(--primary-color);
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .download::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            z-index: 0;
        }
        
        .download::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 300px;
            height: 300px;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            z-index: 0;
        }
        
        .download-content {
            position: relative;
            z-index: 1;
        }
        
        .download-title {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 24px;
        }
        
        .download-description {
            font-size: 20px;
            margin-bottom: 48px;
            max-width: 700px;
            margin: 0 auto 48px auto;
            opacity: 0.9;
        }
        
        .download-buttons {
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-top: 48px;
        }
        
        .download-btn {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 32px;
            background-color: white;
            color: var(--primary-color);
            border-radius: 12px;
            text-decoration: none;
            font-weight: 500;
            font-size: 18px;
            transition: all 0.3s ease;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .download-btn i {
            font-size: 24px;
        }
        
        /* 常见问题 */
        .faq {
            padding: 120px 0;
        }
        
        .faq-items {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            margin-bottom: 24px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
        }
        
        .faq-question {
            padding: 24px;
            background-color: white;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
            border: 1px solid #F2F3F5;
        }
        
        .faq-question:hover {
            background-color: #F5F8FF;
            border-color: rgba(22, 93, 255, 0.1);
        }
        
        .faq-question.active {
            background-color: #F5F8FF;
            border-bottom: none;
        }
        
        .faq-question h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--dark-color);
        }
        
        .faq-icon {
            font-size: 24px;
            color: var(--primary-color);
            transition: transform 0.3s ease;
        }
        
        .faq-question.active .faq-icon {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background-color: white;
            border: 1px solid #F2F3F5;
            border-top: none;
        }
        
        .faq-answer p {
            padding-bottom: 24px;
            color: var(--text-color);
            line-height: 1.6;
        }
        
        /* 页脚 */
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 80px 0;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: 3fr 1fr 1fr 1fr;
            gap: 64px;
        }
        
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            color: white;
            margin-bottom: 24px;
        }
        
        .footer-logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--primary-color);
            border-radius: 8px;
            display: flex;
            justify-content: center;
            align-items: center;
            color: white;
        }
        
        .footer-description {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            margin-bottom: 24px;
        }
        
        .social-links {
            display: flex;
            gap: 16px;
        }
        
        .social-link {
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            color: white;
            transition: all 0.3s ease;
        }
        
        .social-link:hover {
            background-color: var(--primary-color);
            transform: translateY(-2px);
        }
        
        .footer-section h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 24px;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 16px;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
        }
        
        .footer-bottom {
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .footer-bottom p {
            color: rgba(255, 255, 255, 0.5);
        }
        
        .footer-bottom-links {
            display: flex;
            gap: 24px;
        }
        
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-bottom-links a:hover {
            color: var(--primary-color);
        }
        
        /* 响应式设计 */
        @media (max-width: 1024px) {
            .hero-content, .security-content {
                flex-direction: column;
                text-align: center;
                gap: 64px;
            }
            
            .hero-text, .security-text, .hero-image, .security-image {
                max-width: 100%;
            }
            
            .hero-actions, .security-list {
                justify-content: center;
            }
            
            .features-grid, .use-cases-grid, .testimonials-grid, .footer-content, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .footer-content {
                gap: 40px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links, .nav-actions {
                display: none;
            }
            
            .mobile-menu-button {
                display: block;
            }
            
            .hero-title, .download-title {
                font-size: 36px;
            }
            
            .hero-description, .download-description {
                font-size: 18px;
            }
            
            .section-title, .security-title {
                font-size: 28px;
            }
            
            .features-grid, .use-cases-grid, .testimonials-grid, .footer-content, .platforms, .news-grid {
                grid-template-columns: 1fr;
            }
            
            .platforms {
                gap: 40px;
            }
            
            .download-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .footer-bottom {
                flex-direction: column;
                gap: 24px;
            }
        }