/* 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Microsoft YaHei', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 头部样式 */
        header {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            position: relative;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo-img {
            width: 60px;
            margin-right: 15px;
        }
        
        .logo-img img {
            width: 100%;
            height: auto;
        }
        
        .logo h1 {
            font-size: 22px;
            color: #0056b3;
        }
        
        nav {
            display: flex;
            align-items: center;
        }
        
        #menu {
            display: flex;
            list-style: none;
            transition: transform 0.3s ease-in-out;
        }
        
        #menu li a {
            text-decoration: none;
            color: #333;
            padding: 10px 15px;
            display: block;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        #menu li a:hover {
            color: #0056b3;
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 24px;
            cursor: pointer;
            padding: 10px;
            color: #0056b3;
        }
        
        /* 轮播图样式 */
        .hero-slider {
            margin-top: 80px;
            position: relative;
            overflow: hidden;
            height: 500px;
        }
        
        .slides {
            display: flex;
            width: 300%;
            height: 100%;
            transition: transform 0.5s ease-in-out;
        }
        
        .slide {
            width: 33.333%;
            height: 100%;
            position: relative;
            background-size: cover;
            background-position: center;
        }
        
        .slide:nth-child(1) {
            background-color: #1a6fc4;
            background-image: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('../img/banner2.jpg');
        }
        
        .slide:nth-child(2) {
            background-color: #2c3e50;
            background-image: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('../img/banner3.jpg');
        }
        
        .slide:nth-child(3) {
            background-color: #27ae60;
            background-image: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('../img/banner6.jpg');
        }
        
        .slide-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            color: white;
            width: 80%;
        }
        
        .slide-content h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
        }
        
        .slide-content p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.7);
        }
        
        .btn {
            display: inline-block;
            background-color: #0056b3;
            color: white;
            padding: 12px 30px;
            text-decoration: none;
            border-radius: 4px;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        
        .btn:hover {
            background-color: #003d82;
        }
        
        .slider-controls {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
        }
        
        .slider-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255,255,255,0.5);
            margin: 0 5px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .slider-dot.active {
            background-color: white;
        }
        
        .slider-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background-color: rgba(0,0,0,0.3);
            color: white;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            cursor: pointer;
            transition: background-color 0.3s;
            z-index: 10;
        }
        
        .slider-arrow:hover {
            background-color: rgba(0,0,0,0.6);
        }
        
        .slider-arrow.prev {
            left: 20px;
        }
        
        .slider-arrow.next {
            right: 20px;
        }
        
        /* 其他部分样式 */
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            padding-top: 50px;
        }
        
        .section-title h2 {
            font-size: 2rem;
            color: #0056b3;
            margin-bottom: 15px;
        }
        
        .section-title p {
            color: #666;
            font-size: 1.1rem;
        }
        
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .product-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        
        .product-card:hover {
            transform: translateY(-5px);
        }
        
        .product-img {
            height: 200px;
            overflow: hidden;
        }
        
        .product-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .product-card:hover .product-img img {
            transform: scale(1.05);
        }
        
        .product-content {
            padding: 20px;
        }
        
        .product-content h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: #333;
        }
        
        .solution-tabs {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .solution-tab {
            text-align: center;
            padding: 30px 20px;
            background-color: #f8f9fa;
            border-radius: 8px;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .solution-tab:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .solution-tab i {
            font-size: 3rem;
            color: #0056b3;
            margin-bottom: 20px;
        }
        
        .solution-tab h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }
        
        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .about-image img {
            width: 100%;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .contact-info h3, .contact-form h3 {
            margin-bottom: 20px;
            color: #0056b3;
        }
        
        .contact-info p {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: #0056b3;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
        }
        
        .form-group input, .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-family: inherit;
        }
        
        .form-group textarea {
            height: 150px;
            resize: vertical;
        }
        
        footer {
            background-color: #2c3e50;
            color: white;
            padding: 50px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .footer-section h3 {
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        
        .footer-section ul {
            list-style: none;
        }
        
        .footer-section ul li {
            margin-bottom: 10px;
        }
        
        .footer-section ul li a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-section ul li a:hover {
            color: white;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .slide-content h2 {
                font-size: 2rem;
            }
            
            .slide-content p {
                font-size: 1rem;
            }
        }
        
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                text-align: center;
                padding: 10px 0;
            }
            
            .logo {
                margin-bottom: 15px;
                justify-content: center;
                width: 100%;
            }
            
            .mobile-menu-btn {
                display: block;
                position: absolute;
                top: 15px;
                right: 15px;
            }
            
            #menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: white;
                position: absolute;
                top: 100%;
                left: 0;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
                z-index: 999;
                transform: translateY(-10px);
                opacity: 0;
                transition: opacity 0.3s ease, transform 0.3s ease;
            }
            
            #menu.show {
                display: flex;
                opacity: 1;
                transform: translateY(0);
            }
            
            #menu li {
                width: 100%;
                text-align: center;
                border-bottom: 1px solid #f0f0f0;
            }
            
            #menu li:last-child {
                border-bottom: none;
            }
            
            #menu li a {
                padding: 15px;
                width: 100%;
            }
            
            .hero-slider {
                height: 400px;
                margin-top: 130px;
            }
            
            .slide-content h2 {
                font-size: 1.8rem;
            }
            
            .about-content, .contact-content {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 576px) {
            .logo h1 {
                font-size: 18px;
            }
            
            .hero-slider {
                height: 300px;
            }
            
            .slide-content h2 {
                font-size: 1.5rem;
            }
            
            .slide-content p {
                display: none;
            }
            
            .btn {
                padding: 10px 20px;
            }
            
            .slider-arrow {
                width: 30px;
                height: 30px;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
        }