:root {
            --primary: #005aab;
            --primary-dark: #004488;
            --primary-light: #3377cc;
            --secondary: #d50100;
            --secondary-dark: #a00000;
            --secondary-light: #ff3333;
            --accent: #ffab00;
            --light: #f5f5f5;
            --dark: #212121;
            --gray: #757575;
            --gray-light: #e0e0e0;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Noto Sans SC', sans-serif;
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
            background-color: #f9f9f9;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        
        a:hover {
            color: var(--secondary);
        }
        
        .container {
            max-width: 1200px;
        }
        
        /* 头部样式 */
        header {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: white;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            height: 50px;
            margin-right: 15px;
        }
        
        .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
        }
        
        .logo-subtitle {
            font-size: 0.8rem;
            opacity: 0.8;
        }
        
        /* 导航样式 */
        .nav-container {
            display: flex;
            align-items: center;
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .nav-item {
            position: relative;
        }
        
        .nav-link {
            display: block;
            padding: 15px 20px;
            font-weight: 500;
            color: white;
            transition: all 0.3s ease;
        }
        
        .nav-link:hover, .nav-link.active {
            color: white;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
        }
        
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--secondary);
        }
        
        /* 页面标题样式 */
        .page-header {
            background: linear-gradient(rgba(0, 90, 171, 0.8), rgba(0, 68, 136, 0.8)), url('https://www.maccaslans.com/storage/18130/banner/20180706/20180706150054_54860.png');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 80px 0;
            text-align: center;
        }
        
        .page-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        
        .page-subtitle {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 主要内容区域 */
        .section {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 15px;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--secondary);
        }
        
        /* 关于内容样式 */
        .about-content {
            display: flex;
            align-items: center;
            gap: 50px;
            margin-bottom: 60px;
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--primary);
        }
        
        .about-desc {
            margin-bottom: 25px;
            color: var(--gray);
            line-height: 1.8;
        }
        
        .about-image {
            flex: 1;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        .about-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        
        /* 特点样式 */
        .features-section {
            background-color: var(--light);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            text-align: center;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(0, 90, 171, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        
        .feature-icon i {
            font-size: 2rem;
            color: var(--primary);
        }
        
        .feature-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .feature-desc {
            color: var(--gray);
        }
        
        /* 团队样式 */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .team-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            text-align: center;
        }
        
        .team-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .team-img {
            height: 250px;
            background-size: cover;
            background-position: center;
        }
        
        .team-content {
            padding: 25px;
        }
        
        .team-name {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 5px;
            color: var(--primary);
        }
        
        .team-position {
            color: var(--secondary);
            font-weight: 500;
            margin-bottom: 15px;
        }
        
        .team-desc {
            color: var(--gray);
            font-size: 0.9rem;
        }
        

        /* 联系我们样式 */
        .contact-section {
            background: linear-gradient(135deg, var(#f8f9fa), var(#f8f9fa));
            color: white;
        }
        
        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }
        
        .contact-info h3, .contact-form h3 {
            font-size: 1.5rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .contact-info h3::after, .contact-form h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background-color: var(--secondary);
        }
        
        .contact-item {
            display: flex;
            margin-bottom: 20px;
            align-items: flex-start;
        }
        
        .contact-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .contact-details h4 {
            font-size: 1.1rem;
            margin-bottom: 5px;
        }
        
        .contact-details p {
            opacity: 0.8;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: none;
            border-radius: 4px;
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
        }
        
        .form-control::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        
        .btn-primary {
            background-color: var(--secondary);
            border: none;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            background-color: var(--secondary-dark);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        /* 页脚样式 */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 60px 0 20px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-logo {
            margin-bottom: 20px;
        }
        
        .footer-logo img {
            height: 50px;
        }
        
        .footer-about {
            margin-bottom: 20px;
            opacity: 0.8;
        }
        
        .footer-title {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--accent);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            opacity: 0.8;
            transition: all 0.3s ease;
        }
        
        .footer-links a:hover {
            opacity: 1;
            color: var(--accent);
            padding-left: 5px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            opacity: 0.7;
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .about-content {
                flex-direction: column;
            }
            
            .page-header {
                padding: 60px 0;
            }
            
            .page-title {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                text-align: center;
            }
            
            .logo {
                margin-bottom: 15px;
            }
            
            .nav-menu {
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .page-header {
                padding: 50px 0;
            }
            
            .page-title {
                font-size: 1.8rem;
            }
            
            .page-subtitle {
                font-size: 1rem;
            }
        }
        
        @media (max-width: 576px) {
            .section {
                padding: 60px 0;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .page-header {
                padding: 40px 0;
            }
            
            .page-title {
                font-size: 1.5rem;
            }
        }