/* 页面标题横幅 */
        .page-banner {
            background: linear-gradient(135deg, var(--primary) 0%, #1a3a8f 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            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="rgba(255,255,255,0.05)"/></svg>');
            background-size: 100% 100%;
        }
        
        .page-banner h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            position: relative;
            animation: fadeInUp 1s ease;
        }
        
        .page-banner p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
            position: relative;
            animation: fadeInUp 1s ease 0.2s forwards;
            opacity: 0;
        }
        
        .breadcrumb {
            display: flex;
            justify-content: center;
            margin-top: 20px;
            position: relative;
            animation: fadeInUp 1s ease 0.4s forwards;
            opacity: 0;
        }
        
        .breadcrumb a {
            color: var(--secondary);
            transition: var(--transition);
        }
        
        .breadcrumb a:hover {
            color: white;
        }
        
        .breadcrumb span {
            margin: 0 10px;
            opacity: 0.7;
        }
        
        /* 关于介绍部分 */
        .about-intro {
            padding: 80px 0;
            background-color: white;
        }
        
        .about-content {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .about-text {
            flex: 1;
            min-width: 300px;
            padding-right: 30px;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .about-text.animated {
            opacity: 1;
            transform: translateY(0);
        }
        
        .about-text h2 {
            color: var(--primary);
            margin-bottom: 20px;
            font-size: 2.2rem;
            position: relative;
            padding-bottom: 15px;
        }
        
        .about-text h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background-color: var(--secondary);
        }
        
        .about-text p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        
        .about-image {
            flex: 1;
            min-width: 300px;
            position: relative;
            opacity: 0;
            transform: translateX(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .about-image.animated {
            opacity: 1;
            transform: translateX(0);
        }
        
        .about-image img {
            width: 100%;
            border-radius: 10px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            transition: var(--transition);
        }
        
        .about-image:hover img {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        
        .about-image::before {
            content: '';
            position: absolute;
            top: -15px;
            left: -15px;
            width: 100%;
            height: 100%;
            border: 3px solid var(--secondary);
            border-radius: 10px;
            z-index: -1;
            opacity: 0.5;
            transition: var(--transition);
        }
        
        .about-image:hover::before {
            top: -10px;
            left: -10px;
            opacity: 0.8;
        }
        
        /* 时间线部分 */
        .timeline-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            position: relative;
            overflow: hidden;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title h2 {
            font-size: 2.2rem;
            color: var(--primary);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--secondary);
        }
        
        .timeline {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 100%;
            background-color: var(--primary);
        }
        
        .timeline-item {
            width: 50%;
            padding: 20px 40px;
            position: relative;
            opacity: 0;
            transform: translateY(50px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .timeline-item.animated {
            opacity: 1;
            transform: translateY(0);
        }
        
        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }
        
        .timeline-item:nth-child(even) {
            left: 50%;
        }
        
        .timeline-content {
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            position: relative;
            transition: var(--transition);
        }
        
        .timeline-content:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .timeline-item:nth-child(odd) .timeline-content::after {
            content: '';
            position: absolute;
            top: 50%;
            right: -10px;
            width: 0;
            height: 0;
            border-top: 10px solid transparent;
            border-bottom: 10px solid transparent;
            border-left: 10px solid white;
            transform: translateY(-50%);
        }
        
        .timeline-item:nth-child(even) .timeline-content::after {
            content: '';
            position: absolute;
            top: 50%;
            left: -10px;
            width: 0;
            height: 0;
            border-top: 10px solid transparent;
            border-bottom: 10px solid transparent;
            border-right: 10px solid white;
            transform: translateY(-50%);
        }
        
        .timeline-year {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 8px 15px;
            border-radius: 30px;
            font-weight: 600;
            margin-bottom: 15px;
            box-shadow: 0 5px 15px rgba(10, 36, 99, 0.2);
        }
        
        .timeline-content h3 {
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .timeline-dot {
            position: absolute;
            top: 50%;
            width: 20px;
            height: 20px;
            background-color: var(--secondary);
            border: 4px solid var(--primary);
            border-radius: 50%;
            transform: translateY(-50%);
        }
        
        .timeline-item:nth-child(odd) .timeline-dot {
            right: -10px;
        }
        
        .timeline-item:nth-child(even) .timeline-dot {
            left: -10px;
        }
        
        /* 优势部分 */
        .advantages-section {
            padding: 80px 0;
            background-color: white;
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .advantage-card {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            text-align: center;
            transition: var(--transition);
            opacity: 0;
            transform: translateY(30px);
        }
        
        .advantage-card.animated {
            opacity: 1;
            transform: translateY(0);
        }
        
        .advantage-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }
        
        .advantage-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary) 0%, #1a3a8f 100%);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 2rem;
            transition: var(--transition);
        }
        
        .advantage-card:hover .advantage-icon {
            background: linear-gradient(135deg, var(--secondary) 0%, #e0b63a 100%);
            transform: scale(1.1) rotate(5deg);
        }
        
        .advantage-card h3 {
            margin-bottom: 15px;
            color: var(--primary);
            font-size: 1.3rem;
        }
        
        /* 团队部分 */
        .team-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        
        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .team-member {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            opacity: 0;
            transform: translateY(30px);
        }
        
        .team-member.animated {
            opacity: 1;
            transform: translateY(0);
        }
        
        .team-member:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }
        
        .member-image {
            height: 280px;
            overflow: hidden;
            position: relative;
        }
        
        .member-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .team-member:hover .member-image img {
            transform: scale(1.1);
        }
        
        .member-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            background: linear-gradient(to top, rgba(10, 36, 99, 0.8), transparent);
            padding: 20px;
            color: white;
            transform: translateY(100%);
            transition: var(--transition);
        }
        
        .team-member:hover .member-overlay {
            transform: translateY(0);
        }
        
        .member-content {
            padding: 25px;
            text-align: center;
        }
        
        .member-content h3 {
            color: var(--primary);
            margin-bottom: 5px;
        }
        
        .member-content p {
            color: #666;
            margin-bottom: 15px;
        }
        
        .member-social {
            display: flex;
            justify-content: center;
            gap: 15px;
        }
        
        .member-social a {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        
        .member-social a:hover {
            background-color: var(--secondary);
            transform: translateY(-3px);
        }
        
        /* 统计数据部分 */
        .stats-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, #1a3a8f 100%);
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            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="rgba(255,255,255,0.05)"/></svg>');
            background-size: 100% 100%;
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
        }
        
        .stat-item {
            text-align: center;
            position: relative;
            z-index: 1;
            opacity: 0;
            transform: translateY(30px);
        }
        
        .stat-item.animated {
            opacity: 1;
            transform: translateY(0);
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--secondary);
        }
        
        .stat-text {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
     
        /* 动画 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            nav ul {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .about-content {
                flex-direction: column;
            }
            
            .about-text {
                padding-right: 0;
                margin-bottom: 40px;
            }
            
            .timeline::before {
                left: 30px;
            }
            
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 20px;
            }
            
            .timeline-item:nth-child(odd),
            .timeline-item:nth-child(even) {
                left: 0;
                text-align: left;
            }
            
            .timeline-item:nth-child(odd) .timeline-content::after,
            .timeline-item:nth-child(even) .timeline-content::after {
                left: -10px;
                right: auto;
                border-right: 10px solid white;
                border-left: none;
            }
            
            .timeline-item:nth-child(odd) .timeline-dot,
            .timeline-item:nth-child(even) .timeline-dot {
                left: 20px;
                right: auto;
            }
        }
        
        @media (max-width: 576px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .stat-number {
                font-size: 2.5rem;
            }
        }