/* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', Arial, sans-serif;
        }
        
        body {
            color: #333;
            line-height: 1.6;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        .container {
            width: 1200px;
            margin: 0 auto;
        }
        
        /* 导航栏 */
        header {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #2c3e50;
        }
        
        .logo span {
            color: #3498db;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 30px;
            position: relative;
        }
        
        nav ul li a {
            font-weight: 500;
            transition: color 0.3s;
        }
        
        nav ul li a:hover {
            color: #3498db;
        }
        
        /* 轮播图 */
        .banner {
            height: 500px;
            background: linear-gradient(135deg, #3498db, #2c3e50);
            color: white;
            display: flex;
            align-items: center;
            text-align: center;
        }
        
        .banner-content {
            width: 100%;
        }
        
        .banner h1 {
            font-size: 48px;
            margin-bottom: 20px;
        }
        
        .banner p {
            font-size: 20px;
            margin-bottom: 30px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background-color: #fff;
            color: #3498db;
            border-radius: 30px;
            font-weight: bold;
            transition: all 0.3s;
        }
        
        .btn:hover {
            background-color: #f8f9fa;
            transform: translateY(-3px);
        }
        
        /* 服务板块 */
        .services {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title h2 {
            font-size: 36px;
            color: #2c3e50;
            margin-bottom: 15px;
        }
        
        .section-title p {
            color: #7f8c8d;
            font-size: 18px;
        }
        
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .service-card {
            background-color: #fff;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            text-align: center;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
        .service-icon {
            font-size: 50px;
            color: #3498db;
            margin-bottom: 20px;
        }
        
        .service-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: #2c3e50;
        }
        
        /* 关于我们 */
        .about {
            padding: 80px 0;
            background-color: #f8f9fa;
        }
        
        .about-content {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-text h2 {
            font-size: 36px;
            color: #2c3e50;
            margin-bottom: 20px;
        }
        
        .about-text p {
            margin-bottom: 20px;
            color: #555;
        }
        
        .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;
        }
        
        /* 客户案例 */
        .portfolio {
            padding: 80px 0;
        }
        
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        .portfolio-item {
            position: relative;
            border-radius: 5px;
            overflow: hidden;
            height: 250px;
        }
        
        .portfolio-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .portfolio-item:hover img {
            transform: scale(1.1);
        }
        
        .portfolio-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(52, 152, 219, 0.8);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: opacity 0.3s;
            color: white;
        }
        
        .portfolio-item:hover .portfolio-overlay {
            opacity: 1;
        }
        
        /* 联系我们 */
        .contact {
            padding: 80px 0;
            background-color: #2c3e50;
            color: white;
        }
        
        .contact-container {
            display: flex;
            gap: 50px;
        }
        
        .contact-info {
            flex: 1;
        }
        
        .contact-info h2 {
            font-size: 36px;
            margin-bottom: 20px;
        }
        
        .contact-info p {
            margin-bottom: 30px;
        }
        
        .contact-details {
            margin-bottom: 30px;
        }
        
        .contact-details div {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .contact-details i {
            margin-right: 15px;
            font-size: 20px;
            color: #3498db;
        }
        
        .contact-form {
            flex: 1;
            background-color: white;
            padding: 30px;
            border-radius: 10px;
        }
        
        .contact-form h3 {
            color: #2c3e50;
            font-size: 24px;
            margin-bottom: 20px;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #2c3e50;
            font-weight: 500;
        }
        
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 16px;
        }
        
        .form-group textarea {
            height: 120px;
        }
        
        .submit-btn {
            background-color: #3498db;
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
            transition: background-color 0.3s;
        }
        
        .submit-btn:hover {
            background-color: #2980b9;
        }
        
        /* 页脚 */
        footer {
            background-color: #1a252f;
            color: #bdc3c7;
            padding: 50px 0 20px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .footer-col h3 {
            color: white;
            font-size: 20px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-col h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 2px;
            background-color: #3498db;
        }
        
        .footer-col p {
            margin-bottom: 15px;
        }
        
        .footer-links li {
            margin-bottom: 10px;
            list-style: none;
        }
        
        .footer-links a {
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: #3498db;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
        }
        
        .social-links a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background-color: #2c3e50;
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            transition: background-color 0.3s;
        }
        
        .social-links a:hover {
            background-color: #3498db;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2c3e50;
        }
    </style>
	<style>
    /* 成功案例文章列表样式 */
    .article-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
        margin-bottom: 40px;
    }
    
    .case-article {
        background-color: #fff;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        transition: transform 0.3s, box-shadow 0.3s;
    }
    
    .case-article:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    }
    
    .article-image {
        height: 200px;
        overflow: hidden;
    }
    
    .article-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s;
    }
    
    .case-article:hover .article-image img {
        transform: scale(1.05);
    }
    
    .article-content {
        padding: 20px;
    }
    
    .article-content h3 {
        font-size: 18px;
        margin-bottom: 12px;
        color: #2c3e50;
    }
    
    .article-meta {
        display: flex;
        justify-content: space-between;
        font-size: 14px;
        color: #7f8c8d;
        margin-bottom: 15px;
    }
    
    .article-meta i {
        margin-right: 5px;
    }
    
    .article-content p {
        color: #555;
        font-size: 15px;
        margin-bottom: 15px;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .read-more {
        color: #3498db;
        font-size: 14px;
        font-weight: 500;
        display: inline-flex;
        align-items: center;
    }
    
    .read-more i {
        margin-left: 5px;
        font-size: 12px;
        transition: transform 0.3s;
    }
    
    .read-more:hover i {
        transform: translateX(3px);
    }
    
    .view-all {
        text-align: center;
    }
    
    @media (max-width: 992px) {
        .article-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 768px) {
        .article-grid {
            grid-template-columns: 1fr;
        }
    }
</style>
<style>
    /* 联系我们4栏文章列表样式 */
    .contact-articles {
        padding: 80px 0;
        background-color: #f8f9fa;
    }
    
    .contact-columns {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
        margin-top: 40px;
    }
    
    .contact-column {
        background-color: #fff;
        padding: 25px;
        border-radius: 8px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    }
    
    .column-title {
        font-size: 18px;
        color: #2c3e50;
        margin-bottom: 20px;
        padding-bottom: 10px;
        border-bottom: 2px solid #3498db;
        display: flex;
        align-items: center;
    }
    
    .column-title i {
        margin-right: 10px;
        color: #3498db;
    }
    
    .article-list {
        list-style: none;
    }
    
    .article-list li {
        margin-bottom: 12px;
        position: relative;
        padding-left: 15px;
    }
    
    .article-list li::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 6px;
        height: 6px;
        background-color: #3498db;
        border-radius: 50%;
    }
    
    .article-list a {
        color: #555;
        transition: color 0.3s;
        font-size: 15px;
    }
    
    .article-list a:hover {
        color: #3498db;
    }
    
    @media (max-width: 992px) {
        .contact-columns {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 576px) {
        .contact-columns {
            grid-template-columns: 1fr;
        }
    }
	
	  /* 联系我们4栏文章列表样式 */
    .contact-articles {
        padding: 80px 0;
        background-color: #f8f9fa;
    }
    
    .contact-columns {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
        margin-top: 40px;
    }
    
    .contact-column {
        background-color: #fff;
        padding: 25px;
        border-radius: 8px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    }
    
    .column-title {
        font-size: 18px;
        color: #2c3e50;
        margin-bottom: 20px;
        padding-bottom: 10px;
        border-bottom: 2px solid #3498db;
        display: flex;
        align-items: center;
    }
    
    .column-title i {
        margin-right: 10px;
        color: #3498db;
    }
    
    .article-list {
        list-style: none;
    }
    
    .article-list li {
        margin-bottom: 12px;
        position: relative;
        padding-left: 15px;
    }
    
    .article-list li::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 6px;
        height: 6px;
        background-color: #3498db;
        border-radius: 50%;
    }
    
    .article-list a {
        color: #555;
        transition: color 0.3s;
        font-size: 15px;
    }
    
    .article-list a:hover {
        color: #3498db;
    }
    
    @media (max-width: 992px) {
        .contact-columns {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 576px) {
        .contact-columns {
            grid-template-columns: 1fr;
        }
    }