body {
            font-family: 'Microsoft YaHei', sans-serif;
            line-height: 1.8;
            color: #333;
        }
        .navbar-brand {
            font-weight: bold;
            font-size: 1.5rem;
        }
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            text-align: center;
            font-size: 2.5rem;
            font-weight: bold;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 4px;
            background: #007bff;
        }
        .service-card, .project-card, .news-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            margin-bottom: 30px;
            height: 100%;
        }
        .service-card:hover, .project-card:hover, .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .service-icon {
            font-size: 3rem;
            color: #007bff;
            margin-bottom: 20px;
        }
        .project-card img, .news-card img {
            width: 100%;
            height: 250px;
            object-fit: cover;
        }
        .contact-info i {
            color: #007bff;
            margin-right: 10px;
        }
        .flink {
            display: inline-block;
            padding: 10px 20px;
            margin: 10px;
            background: #f8f9fa;
            border-radius: 50px;
            text-decoration: none;
            color: #333;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }
        .flink:hover {
            background: #007bff;
            color: white;
            border-color: #0056b3;
        }
        .friendlinks {
            background: #f8f9fa;
            padding: 40px 0;
            text-align: center;
        }
        footer {
            background: #343a40;
            color: white;
            padding: 40px 0;
        }
        .social-icons a {
            color: white;
            margin: 0 10px;
            font-size: 1.5rem;
            transition: color 0.3s ease;
        }
        .social-icons a:hover {
            color: #007bff;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
            }
            .section-title {
                font-size: 2rem;
            }
        }