:root {
            --primary-color: #6c5ce7;
            --secondary-color: #00cec9;
            --accent-color: #fd79a8;
            --text-color: #2d3436;
            --light-text: #636e72;
            --bg-color: #f9f9f9;
            --card-bg: #ffffff;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: all 0.3s ease;
        }
        
        a:hover {
            color: var(--accent-color);
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        section {
            padding: 80px 0;
        }
        
        h1, h2, h3, h4 {
            margin-bottom: 20px;
            font-weight: 600;
            line-height: 1.3;
        }
        
        h1 {
            font-size: 2.5rem;
        }
        
        h2 {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        
        h2:after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 3px;
        }
        
        h3 {
            font-size: 1.5rem;
        }
        
        p {
            margin-bottom: 15px;
            color: var(--light-text);
        }
        
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            color: white;
            border-radius: 30px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
            border: none;
            cursor: pointer;
        }
        
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(108, 92, 231, 0.4);
            color: white;
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
        }
        
        .btn-outline:hover {
            background: var(--primary-color);
            color: white;
        }
        
        .text-center {
            text-align: center;
        }
        
        .text-primary {
            color: var(--primary-color);
        }
        
        .text-secondary {
            color: var(--secondary-color);
        }
        
        .mb-30 {
            margin-bottom: 30px;
        }
        
        .mt-30 {
            margin-top: 30px;
        }
        
        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            padding: 20px 0;
            z-index: 1000;
            transition: all 0.3s ease;
            background-color: rgba(255, 255, 255, 0.9);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        header.scrolled {
            padding: 15px 0;
            background-color: rgba(255, 255, 255, 0.98);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .logo img {
            height: 40px;
            margin-right: 10px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            color: var(--text-color);
            font-weight: 500;
            position: relative;
        }
        
        .nav-links a:after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover:after {
            width: 100%;
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-color);
        }
        
        /* Banner区域 */
        #banner {
            height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding-top: 80px;
        }
        
        #particles-js {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
        }
        
        .banner-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            width: 100%;
        }
        
        .banner-text {
            flex: 1;
            padding-right: 50px;
        }
        
        .banner-image {
            flex: 1;
            text-align: center;
        }
        
        .banner-image img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            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); }
        }
        
        .typing-text h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            line-height: 1.2;
            min-height: 120px;
        }
        
        .typing-text p {
            font-size: 1.1rem;
            margin-bottom: 30px;
            min-height: 100px;
        }
        
        .btn-group {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        
        /* 关于区域 */
        .about-container {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-image {
            flex: 1;
            text-align: center;
        }
        
        .about-image img {
            max-width: 100%;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        /* 功能区域 */
        .features {
            background-color: var(--bg-color);
        }
        
        .features-intro {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 50px;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background-color: var(--card-bg);
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        /* 分隔区域 */
        .divider {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 100px 0;
            text-align: center;
        }
        
        .divider h2 {
            color: white;
            margin-bottom: 20px;
        }
        
        .divider h2:after {
            background: white;
        }
        
        .divider p {
            color: rgba(255, 255, 255, 0.9);
            max-width: 800px;
            margin: 0 auto;
        }
        
        /* 案例区域 */
        .cases-intro {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 50px;
        }
        
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .case-card {
            background-color: var(--card-bg);
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .case-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .case-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        
        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .case-card:hover .case-image img {
            transform: scale(1.1);
        }
        
        .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background-color: rgba(255, 255, 255, 0.8);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .play-btn i {
            color: var(--primary-color);
            font-size: 1.5rem;
            margin-left: 5px;
        }
        
        .play-btn:hover {
            background-color: var(--primary-color);
        }
        
        .play-btn:hover i {
            color: white;
        }
        
        .case-content {
            padding: 20px;
        }
        
        .case-content h3 {
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        
        /* 页脚 */
        footer {
            background-color: #2d3436;
            color: white;
            padding: 80px 0 20px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-col h3 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
            position: relative;
        }
        
        .footer-col h3:after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--primary-color);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #b2bec3;
            transition: all 0.3s ease;
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .footer-about p {
            color: #b2bec3;
            margin-bottom: 20px;
        }
        
        .contact-info {
            color: #b2bec3;
        }
        
        .contact-info p {
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: var(--primary-color);
        }
        
        .friend-links {
            text-align: center;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 20px;
        }
        
        .friend-links a {
            color: #b2bec3;
            margin: 0 10px;
            transition: all 0.3s ease;
        }
        
        .friend-links a:hover {
            color: white;
        }
        
        .copyright {
            text-align: center;
            color: #b2bec3;
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .banner-content, .about-container {
                flex-direction: column;
            }
            
            .banner-text {
                padding-right: 0;
                margin-bottom: 50px;
                text-align: center;
            }
            
            .btn-group {
                justify-content: center;
            }
            
            .about-text {
                order: 2;
            }
            
            .about-image {
                order: 1;
                margin-bottom: 30px;
            }
            
            .typing-text h1 {
                min-height: auto;
                font-size: 2.5rem;
            }
            
            .typing-text p {
                min-height: auto;
            }
        }
        
        @media (max-width: 768px) {
            section {
                padding: 60px 0;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            h2 {
                font-size: 1.8rem;
            }
            
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: white;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                transition: all 0.5s ease;
            }
            
            .nav-links.active {
                left: 0;
            }
            
            .nav-links li {
                margin: 15px 0;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 576px) {
            .typing-text h1 {
                font-size: 2rem;
            }
            
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
        }
        
        /* 弹窗样式 */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            z-index: 2000;
            align-items: center;
            justify-content: center;
        }
        
        .modal-content {
            width: 80%;
            max-width: 800px;
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            position: relative;
        }
        
        .close-modal {
            position: absolute;
            top: 10px;
            right: 20px;
            font-size: 2rem;
            color: white;
            cursor: pointer;
            z-index: 1;
        }
        
        .video-container {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
        }
        
        .video-container video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }
        
        /* 动画效果 */
        .fade-in {
            animation: fadeIn 1s ease-in;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .slide-up {
            animation: slideUp 1s ease-out;
        }
        
        @keyframes slideUp {
            from { 
                opacity: 0;
                transform: translateY(50px);
            }
            to { 
                opacity: 1;
                transform: translateY(0);
            }
        }