* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航样式 */
        header {
            background-color: #1a1a2e;
            color: white;
            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;
            padding: 15px 0;
        }
        
        .logo {
            font-size: 28px;
            font-weight: 700;
            color: #ffcc00;
            text-decoration: none;
        }
        
        .logo span {
            color: #fff;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 30px;
        }
        
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            font-size: 17px;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        
        nav ul li a:hover, nav ul li a.active {
            background-color: #ffcc00;
            color: #1a1a2e;
        }
        
        .mobile-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
        }
        
        /* 首页Banner */
        .hero {
            background: linear-gradient(rgba(26, 26, 46, 0.8), rgba(26, 26, 46, 0.9)), url('https://images.unsplash.com/photo-1514525253161-7a46d19cd819?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
            padding: 120px 0;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            color: #ffcc00;
        }
        
        .hero p {
            font-size: 1.3rem;
            max-width: 700px;
            margin: 0 auto 30px;
            color: #f0f0f0;
        }
        
        .btn {
            display: inline-block;
            background-color: #ffcc00;
            color: #1a1a2e;
            padding: 14px 32px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        
        .btn:hover {
            background-color: #ffd633;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        
        /* 内容区域 */
        section {
            padding: 80px 0;
        }
        
        section:nth-child(even) {
            background-color: #f0f2f5;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: #1a1a2e;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: #ffcc00;
        }
        
        .section-title p {
            color: #666;
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
        }
        
        /* 关于我们 */
        .about-content {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #1a1a2e;
        }
        
        .about-text p {
            margin-bottom: 15px;
            font-size: 1.05rem;
            color: #555;
        }
        
        .about-image {
            flex: 1;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .about-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s ease;
        }
        
        .about-image:hover img {
            transform: scale(1.05);
        }
        
        /* 公司动态 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .news-item {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease;
        }
        
        .news-item:hover {
            transform: translateY(-10px);
        }
        
        .news-img {
            height: 220px;
            overflow: hidden;
        }
        
        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .news-item:hover .news-img img {
            transform: scale(1.1);
        }
        
        .news-content {
            padding: 25px;
        }
        
        .news-date {
            color: #ffcc00;
            font-weight: 600;
            margin-bottom: 10px;
            display: block;
        }
        
        .news-content h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: #1a1a2e;
        }
        
        .news-content p {
            color: #666;
            margin-bottom: 15px;
        }
        
        .read-more {
            color: #1a1a2e;
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }
        
        .read-more i {
            margin-left: 5px;
            transition: transform 0.3s ease;
        }
        
        .read-more:hover i {
            transform: translateX(5px);
        }
        
        /* 公司业务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .service-item {
            background-color: white;
            padding: 35px 30px;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }
        
        .service-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .service-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(255, 204, 0, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: #ffcc00;
            font-size: 32px;
        }
        
        .service-item h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: #1a1a2e;
        }
        
        .service-item p {
            color: #666;
        }
        
        /* 联系我们 */
        .contact-content {
            display: flex;
            gap: 50px;
        }
        
        .contact-info {
            flex: 1;
        }
        
        .contact-form {
            flex: 1;
        }
        
        .contact-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 30px;
        }
        
        .contact-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(255, 204, 0, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 20px;
            color: #ffcc00;
            font-size: 20px;
            flex-shrink: 0;
        }
        
        .contact-details h3 {
            font-size: 1.3rem;
            margin-bottom: 8px;
            color: #1a1a2e;
        }
        
        .contact-details p {
            color: #666;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #555;
        }
        
        .form-control {
            width: 100%;
            padding: 14px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 16px;
            transition: border 0.3s ease;
        }
        
        .form-control:focus {
            outline: none;
            border-color: #ffcc00;
        }
        
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        
        /* 页脚 */
        footer {
            background-color: #1a1a2e;
            color: white;
            padding: 70px 0 30px;
        }
        
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 50px;
        }
        
        .footer-logo {
            flex: 1;
            min-width: 300px;
            margin-bottom: 30px;
        }
        
        .footer-logo .logo {
            margin-bottom: 20px;
            display: inline-block;
        }
        
        .footer-logo p {
            color: #aaa;
            max-width: 300px;
            line-height: 1.7;
        }
        
        .footer-links {
            flex: 1;
            min-width: 200px;
            margin-bottom: 30px;
        }
        
        .footer-links h3 {
            font-size: 1.4rem;
            margin-bottom: 25px;
            color: #ffcc00;
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links ul li {
            margin-bottom: 12px;
        }
        
        .footer-links ul li a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-links ul li a:hover {
            color: #ffcc00;
        }
        
        .friend-links {
            flex: 2;
            min-width: 300px;
            margin-bottom: 30px;
        }
        
        .friend-links h3 {
            font-size: 1.4rem;
            margin-bottom: 25px;
            color: #ffcc00;
        }
        
        .friend-links-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .friend-link {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 8px 20px;
            border-radius: 30px;
            color: #ccc;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .friend-link:hover {
            background-color: #ffcc00;
            color: #1a1a2e;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 15px;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .about-content, .contact-content {
                flex-direction: column;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
        }
        
        @media (max-width: 768px) {
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #1a1a2e;
                flex-direction: column;
                padding: 20px 0;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
            }
            
            nav ul.active {
                display: flex;
            }
            
            nav ul li {
                margin: 0;
                text-align: center;
            }
            
            nav ul li a {
                display: block;
                padding: 15px;
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .hero h1 {
                font-size: 2.3rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .news-grid, .services-grid {
                grid-template-columns: 1fr;
            }
        }