:root {
            --primary: #198754;
            --primary-light: #20c997;
            --primary-dark: #146c43;
            --secondary: #ffc107;
            --secondary-light: #ffda6a;
            --gray-light: #f5f7fa;
            --gray: #e0e6ed;
            --gray-dark: #4b5563;
            --text-dark: #1f2937;
            --text-light: #f9fafb;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
        }
        
        /* 头部样式 */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .navbar-brand img {
            max-height: 60px;
        }
        
        .navbar-nav .nav-link {
            color: var(--text-dark);
            font-weight: 500;
            padding: 0.8rem 1.2rem;
            transition: all 0.3s ease;
        }
        
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--primary);
        }
        
        .contact-phone {
            background-color: var(--secondary);
            color: var(--text-dark);
            padding: 0.5rem 1.5rem;
            border-radius: 30px;
            font-weight: bold;
            text-decoration: none;
            transition: background-color 0.3s ease;
        }
        
        .contact-phone:hover {
            background-color: var(--secondary-light);
            color: var(--text-dark);
        }
        
        /* 英雄区域 */
        .hero {
            background: linear-gradient(rgba(25, 135, 84, 0.9), rgba(25, 135, 84, 0.8)), url('https://picsum.photos/id/1076/1920/600') center/cover no-repeat;
            color: white;
            padding: 6rem 0;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            font-weight: 700;
        }
        
        .hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2rem;
        }
        
        .btn-primary {
            background-color: var(--secondary);
            border: none;
            color: var(--text-dark);
            padding: 0.8rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            background-color: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            color: var(--text-dark);
        }
        
        /* 服务区域 */
        .services {
            padding: 5rem 0;
            background-color: var(--gray-light);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        
        .section-title h2 {
            color: var(--primary);
            font-weight: 700;
            position: relative;
            display: inline-block;
            padding-bottom: 0.5rem;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background-color: var(--secondary);
        }
        
        .service-card {
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            padding: 2rem;
            margin-bottom: 2rem;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .service-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
        }
        
        .service-card h3 {
            color: var(--primary);
            margin-bottom: 1rem;
            font-weight: 600;
        }
        
        /* 服务描述两行限制 */
        .service-description {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            text-overflow: ellipsis;
            height: 3.2em;
            line-height: 1.6;
        }
        
        /* 关于我们 */
        .about {
            padding: 5rem 0;
        }
        
        .about-img {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        .about-img img {
            width: 100%;
            height: auto;
            transition: transform 0.5s ease;
        }
        
        .about-img:hover img {
            transform: scale(1.05);
        }
        
        .about-content h3 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            font-weight: 700;
        }
        
        .about-content p {
            margin-bottom: 1rem;
        }
        
        /* 成功案例 */
        .cases {
            padding: 5rem 0;
            background-color: var(--gray-light);
        }
        
        .case-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 2rem;
            transition: all 0.3s ease;
        }
        
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .case-img {
            height: 200px;
            overflow: hidden;
        }
        
        .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .case-card:hover .case-img img {
            transform: scale(1.1);
        }
        
        .case-content {
            padding: 1.5rem;
        }
        
        .case-content h3 {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
            color: var(--primary);
        }
        
        .case-content a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }
        
        .case-content a:hover {
            color: var(--secondary);
        }
        
        /* 新闻动态 */
        .news {
            padding: 2rem 0;
        }
        
        .news-item {
            display: flex;
            margin-bottom: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--gray);
            transition: all 0.3s ease;
        }
        
        .news-item:hover {
            transform: translateX(5px);
        }
        
        .news-date {
            background-color: var(--primary);
            color: white;
            width: 70px;
            height: 70px;
            border-radius: 5px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            margin-right: 1.5rem;
            flex-shrink: 0;
        }
        
        .news-date .day {
            font-size: 1.5rem;
            font-weight: bold;
            line-height: 1;
        }
        
        .news-date .month {
            font-size: 0.8rem;
        }
        
        .news-content {
            flex: 1;
            min-width: 0; /* 确保文本溢出处理正常工作 */
        }
        
        .news-content h3 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            /* 标题一行限制，超出用省略号 */
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .news-content a {
            color: var(--text-dark);
            text-decoration: none;
        }
        
        .news-content a:hover {
            color: var(--primary);
        }
        
        /* 新闻描述两行限制 */
        .news-description {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            text-overflow: ellipsis;
            height: 3.2em;
            line-height: 1.6;
        }
        
        .btn-primary {
            background-color: var(--secondary);
            border: none;
            color: var(--text-dark);
            padding: 0.8rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            background-color: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            color: var(--text-dark);
        }
        
        
        /* 服务流程 */
        .service-process-section {
            padding: 5rem 0;
            background-color: var(--primary);
            color: white;
        }
        
        .process-steps {
            display: flex;
            justify-content: space-between;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }
        
        .process-step {
            flex: 1;
            min-width: 180px;
            text-align: center;
            padding: 1.5rem;
            margin: 0.5rem;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            transition: all 0.3s ease;
        }
        
        .process-step:hover {
            transform: translateY(-5px);
            background-color: rgba(255, 255, 255, 0.15);
        }
        
        .step-number {
            width: 50px;
            height: 50px;
            background-color: white;
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0 auto 1rem;
            font-weight: bold;
            font-size: 1.2rem;
        }
        
        .step-content h4 {
            margin-bottom: 0.5rem;
            font-size: 1.1rem;
        }
        
        .quick-contact {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        
        .contact-item {
            flex: 1;
            min-width: 200px;
            text-align: center;
            padding: 1.5rem;
            margin: 0.5rem;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            transition: all 0.3s ease;
        }
        
        .contact-item:hover {
            transform: translateY(-5px);
            background-color: rgba(255, 255, 255, 0.15);
        }
        
        .contact-icon {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        
        .contact-item h4 {
            margin-bottom: 0.5rem;
        }
        
        /* 友情链接 */
        .friend-links {
            padding: 3rem 0;
            background-color: var(--gray-light);
        }
        
        .friend-links h3 {
            text-align: center;
            margin-bottom: 2rem;
            color: var(--primary);
        }
        
        .friend-link-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }
        
        .friend-link-list a {
            color: var(--gray-dark);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .friend-link-list a:hover {
            color: var(--primary);
        }
        
        /* 页脚 */
        footer {
            background-color: #111;
            color: rgba(255, 255, 255, 0.7);
            padding: 3rem 0 1.5rem;
        }
        
        .footer-logo {
            margin-bottom: 1.5rem;
        }
        
        .footer-logo img {
            max-height: 50px;
        }
        
        .footer-links h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-links a:hover {
            color: var(--secondary);
        }
        
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        /* 悬浮工具栏 */
        .floating-toolbar {
            position: fixed;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 999;
        }
        
        .tool-item {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            margin-bottom: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .tool-item:hover {
            background-color: var(--secondary);
            transform: scale(1.1);
            color: var(--text-dark);
        }
        
        .wechat-qr {
            position: absolute;
            right: 60px;
            top: 0;
            background-color: white;
            padding: 10px;
            border-radius: 5px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            display: none;
        }
        
        .wechat-qr img {
            width: 150px;
            height: 150px;
        }
        
        .show-qr .wechat-qr {
            display: block;
        }
        
        /* 模态框样式 */
        .modal-content {
            border-radius: 10px;
            border: none;
        }
        
        .modal-header {
            background-color: var(--primary);
            color: white;
            border-bottom: none;
            border-radius: 10px 10px 0 0;
        }
        
        .modal-body {
            text-align: center;
            padding: 2rem;
        }
        
        .modal-qr {
            width: 200px;
            height: 200px;
            margin: 0 auto 1rem;
        }
        
        .modal-body p {
            margin-bottom: 0;
            color: var(--gray-dark);
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2rem;
            }
            
            .about-content {
                margin-top: 2rem;
            }
            
            .process-steps, .quick-contact {
                flex-direction: column;
            }
            
            .process-step, .contact-item {
                margin-bottom: 1rem;
            }
        }
        
        @media (max-width: 768px) {
            .navbar-nav {
                text-align: center;
            }
            
            .contact-phone {
                display: block;
                text-align: center;
                margin-top: 1rem;
            }
            
            .hero {
                padding: 4rem 0;
            }
            
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .floating-toolbar {
                display: none;
            }
        }
        
        @media (max-width: 576px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .service-card, .case-card {
                padding: 1.5rem;
            }
            
          .news-item {
                flex-direction: column;
            }
            
            .news-date {
                margin-bottom: 1rem;
                margin-right: 0;
                align-self: center;
            }
            
            .news-content h3 {
                text-align: center;
            }
        }