/* 轮播图 */
        .slider {
            position: relative;
            height: 500px;
            overflow: hidden;
        }
        
        .slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            color: white;
        }
        
        .slide.active {
            opacity: 1;
        }
        
        .slide-content {
            background: rgba(0, 0, 0, 0.6);
            padding: 30px;
            max-width: 600px;
            border-radius: 5px;
            animation: fadeInUp 1s ease;
        }
        
        .slide h2 {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }
        
        .slide p {
            font-size: 1.2rem;
            margin-bottom: 20px;
        }
        
        .slider-nav {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
        }
        
        .slider-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            margin: 0 5px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .slider-dot.active {
            background: white;
            transform: scale(1.2);
        }
        
        /* 园区介绍 */
        .intro {
            background: white;
        }
        
        .intro-content {
            display: flex;
            align-items: center;
            gap: 40px;
        }
        
        .intro-text {
            flex: 1;
        }
        
        .intro-image {
            flex: 1;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .intro-image:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        
        /* 服务展示 */
        .services {
            background: var(--light-color);
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .service-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .service-icon {
            background: var(--secondary-color);
            color: white;
            font-size: 2.5rem;
            padding: 25px;
            text-align: center;
        }
        
        .service-content {
            padding: 20px;
        }
        
        .service-content h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        /* 知识库 */
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .knowledge-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .knowledge-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .knowledge-image {
            height: 200px;
            overflow: hidden;
        }
        
        .knowledge-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .knowledge-card:hover .knowledge-image img {
            transform: scale(1.1);
        }
        
        .knowledge-content {
            padding: 20px;
        }
        
        .knowledge-content h3 {
            margin-bottom: 10px;
            color: var(--primary-color);
        }
        

        /* 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) {
            .intro-content {
                flex-direction: column;
            }
            
            .slide h2 {
                font-size: 2rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr 1fr;
            }
            
            .footer-column:first-child {
                grid-column: span 2;
                margin-bottom: 20px;
            }
        }
        
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            
            nav ul {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: white;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                transition: left 0.3s ease;
            }
            
            nav ul.active {
                left: 0;
            }
            
            nav li {
                margin: 15px 0;
            }
            
            .slider {
                height: 400px;
            }
            
            .slide h2 {
                font-size: 1.8rem;
            }
            
            .slide p {
                font-size: 1rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .footer-column:first-child {
                grid-column: span 1;
            }
            
            .friend-links .container {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .friend-links h4 {
                margin-bottom: 10px;
            }
        }
        
        @media (max-width: 576px) {
            .slider {
                height: 350px;
            }
            
            .slide-content {
                padding: 20px;
            }
            
            .slide h2 {
                font-size: 1.5rem;
            }
            
            .section {
                padding: 40px 0;
            }
            
            .services-grid,
            .knowledge-grid {
                grid-template-columns: 1fr;
            }
        }