* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        :root {
            --primary-blue: #0066ff;
            --secondary-blue: #3399ff;
            --dark-blue: #003366;
            --light-blue: #e6f2ff;
            --accent-color: #00cc99;
            --text-dark: #333333;
            --text-light: #666666;
            --white: #ffffff;
            --shadow: 0 5px 15px rgba(0, 51, 102, 0.1);
        }
        
        body {
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部导航样式 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow);
            z-index: 1000;
            padding: 15px 0;
            transition: all 0.3s ease;
        }
        
        header.scrolled {
            padding: 10px 0;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary-blue), var(--accent-color));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 12px;
            color: white;
            font-size: 20px;
        }
        
        .logo-text {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark-blue);
        }
        
        .logo-text span {
            color: var(--primary-blue);
        }
        .logo-text span {
            color: var(--primary-blue);
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 30px;
        }
        
        nav ul li a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            transition: color 0.3s;
            position: relative;
        }
        
        nav ul li a:hover {
            color: var(--primary-blue);
        }
        
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-blue);
            transition: width 0.3s;
        }
        
        nav ul li a:hover::after {
            width: 100%;
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--dark-blue);
        }
        
        /* 英雄区域样式 */
        .hero {
            padding: 180px 0 100px;
            background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(51, 153, 255, 0.05) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero-bg {
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="%230066ff" opacity="0.03"/></svg>') no-repeat;
            background-size: cover;
        }
        
        .hero-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .hero-text {
            flex: 1;
            padding-right: 40px;
        }
        
        .hero-image {
            flex: 1;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 3.2rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark-blue);
        }
        
        .hero h1 span {
            color: var(--primary-blue);
        }
        
        .hero p {
            font-size: 1.2rem;
            color: var(--text-light);
            margin-bottom: 30px;
            max-width: 600px;
        }
        
        .cta-button {
            display: inline-block;
            background: linear-gradient(to right, var(--primary-blue), var(--secondary-blue));
            color: white;
            padding: 15px 35px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s;
            box-shadow: 0 5px 15px rgba(0, 102, 255, 0.3);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 102, 255, 0.4);
        }
        
        .hero-image img {
            max-width: 100%;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        
        /* 服务区域样式 */
        .services {
            padding: 100px 0;
            background-color: var(--white);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--dark-blue);
            margin-bottom: 15px;
        }
        
        .section-title p {
            color: var(--text-light);
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .service-card {
            background-color: var(--white);
            border-radius: 10px;
            padding: 40px 30px;
            box-shadow: var(--shadow);
            transition: transform 0.3s, box-shadow 0.3s;
            text-align: center;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 51, 102, 0.15);
        }
        
        .service-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--light-blue), rgba(0, 102, 255, 0.1));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: var(--primary-blue);
            font-size: 32px;
        }
        
        .service-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--dark-blue);
        }
        
        .service-card p {
            color: var(--text-light);
            margin-bottom: 20px;
        }
        
        .service-link {
            color: var(--primary-blue);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
        }
        
        .service-link i {
            margin-left: 5px;
            transition: transform 0.3s;
        }
        
        .service-link:hover i {
            transform: translateX(5px);
        }
        
        /* 关于我们样式 */
        .about {
            padding: 100px 0;
            background-color: var(--light-blue);
        }
        
        .about-content {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-image {
            flex: 1;
        }
        
        .about h2 {
            font-size: 2.5rem;
            color: var(--dark-blue);
            margin-bottom: 20px;
        }
        
        .about p {
            color: var(--text-light);
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        
        .stats {
            display: flex;
            justify-content: space-between;
            margin-top: 40px;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 5px;
        }
        
        .stat-label {
            color: var(--text-light);
            font-weight: 600;
        }
        
        .about-image img {
            width: 100%;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        
        /* 案例展示样式 */
        .portfolio {
            padding: 100px 0;
            background-color: var(--white);
        }
        
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .portfolio-item {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s;
        }
        
        .portfolio-item:hover {
            transform: translateY(-10px);
        }
        
        .portfolio-img {
            height: 200px;
            background-color: #f0f7ff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-blue);
            font-size: 60px;
        }
        
        .portfolio-info {
            background-color : #fff;
            padding: 25px;
        }
        
        .portfolio-info h3 {
            font-size: 1.3rem;
            color: var(--dark-blue);
            margin-bottom: 10px;
        }
        .portfolio-info h3 span {
            color: var(--primary-blue);
        }
        
        .portfolio-info p {
            color: var(--text-light);
        }
        .portfolio-img {
            width:343px;
            heigth:200px;
        }
        .portfolio-img img{
            margin-top: 226px;
            width:100%;
            heigth:200px;
            object-fit : cover;
            object-position : 80% center;
        }
        
        /* 联系我们样式 */
        .contact {
            padding: 100px 0;
            background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(51, 153, 255, 0.05) 100%);
        }
        
        .contact-content {
            display: flex;
            gap: 50px;
        }
        
        .contact-info {
            flex: 1;
        }
        
        .contact-form {
            flex: 1;
        }
        
        .contact-info h2 {
            font-size: 2.5rem;
            color: var(--dark-blue);
            margin-bottom: 20px;
        }
        
        .contact-info p {
            color: var(--text-light);
            margin-bottom: 30px;
        }
        
        .contact-details {
            margin-top: 40px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .contact-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 20px;
            margin-right: 15px;
        }
        
        .contact-text h4 {
            color: var(--dark-blue);
            margin-bottom: 5px;
        }
        
        .contact-text p {
            color: var(--text-light);
            margin-bottom: 0;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: var(--dark-blue);
            font-weight: 600;
        }
        
        .form-control {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        
        .form-control:focus {
            outline: none;
            border-color: var(--primary-blue);
        }
        
        .submit-btn {
            background: linear-gradient(to right, var(--primary-blue), var(--secondary-blue));
            color: white;
            border: none;
            padding: 15px 35px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            width: 100%;
        }
        
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 102, 255, 0.3);
        }
        
        /* 页脚样式 */
        footer {
            background-color: var(--dark-blue);
            color: white;
            padding: 70px 0 20px;
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        
        .footer-column {
            flex: 1;
            min-width: 250px;
            margin-bottom: 30px;
            padding-right: 20px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: white;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column ul li a {
            color: #cccccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column ul li a:hover {
            color: white;
        }
        
        .social-icons {
            display: flex;
            margin-top: 20px;
        }
        
        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            margin-right: 10px;
            color: white;
            text-decoration: none;
            transition: background-color 0.3s;
        }
        
        .social-icons a:hover {
            background-color: var(--primary-blue);
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #cccccc;
            font-size: 0.9rem;
        }
        .team-section {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }
        
        .team-member {
            width: 220px;
            background-color: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .team-member:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 20px rgba(0, 0, 0, 0.12);
        }
        
        .member-photo {
            height: 270px;
            overflow: hidden;
        }
        
        .member-photo img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform 0.5s ease;
            /* position: relative;
            top:80px; */
        }
        
        .team-member:hover .member-photo img {
            transform: scale(1.05);
        }
        
        .member-info {
            padding: 25px;
        }
        
        .member-name {
            font-size: 1.5rem;
            font-weight: 700;
            color: #2c3e50;
            margin-bottom: 5px;
        }
        
        .member-position {
            font-size: 1rem;
            color: #3498db;
            font-weight: 600;
            margin-bottom: 15px;
        }
        
        .responsibility {
            background-color: #f8f9fa;
            padding: 12px 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            border-left: 4px solid #3498db;
        }
        
        .responsibility h3 {
            font-size: 1rem;
            color: #2c3e50;
            margin-bottom: 8px;
        }
        
        .responsibility ul {
            padding-left: 20px;
        }
        
        .responsibility li {
            margin-bottom: 5px;
            color: #555;
        }
        
        .member-intro {
            color: #666;
            font-size: 0.95rem;
            line-height: 1.7;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero-content, .about-content, .contact-content {
                flex-direction: column;
            }
            
            .hero-text, .about-text, .contact-info, .contact-form {
                padding-right: 0;
                margin-bottom: 50px;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
        }
        
        @media (max-width: 768px) {
            nav ul {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .section-title h2, .about h2, .contact-info h2 {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 480px) {
            .hero {
                padding: 150px 0 80px;
            }
            
            .services, .about, .portfolio, .contact {
                padding: 70px 0;
            }
            
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .cta-button {
                padding: 12px 25px;
            }
            
        }