:root {
            --primary-color: #1a6d73;
            --secondary-color: #f8b739;
            --light-color: #f8f9fa;
            --dark-color: #343a40;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.8;
        }
        .navbar-brand {
            font-weight: bold;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            transition: color 0.3s;
        }
        .navbar-nav .nav-link:hover {
            color: var(--secondary-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 109, 115, 0.8), rgba(26, 109, 115, 0.9)), url('https://images.unsplash.com/photo-1576091160399-112ba8d25d1f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
            color: white;
            padding: 120px 0;
        }
        .section-title {
            color: var(--primary-color);
            border-bottom: 3px solid var(--secondary-color);
            display: inline-block;
            padding-bottom: 10px;
            margin-bottom: 40px;
        }
        .service-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .team-member img {
            transition: transform 0.3s;
        }
        .team-member:hover img {
            transform: scale(1.05);
        }
        .contact-info i {
            color: var(--primary-color);
            margin-right: 10px;
        }
        .friendlink {
            background-color: var(--light-color);
            padding: 40px 0;
        }
        .flink {
            display: inline-block;
            margin: 10px 15px;
            padding: 10px 20px;
            background: white;
            border-radius: 50px;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s;
            border: 2px solid transparent;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--secondary-color);
            transform: scale(1.05);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
        }
        footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        footer a:hover {
            color: var(--secondary-color);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 12px 30px;
            font-weight: bold;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            color: var(--dark-color);
            transform: scale(1.05);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            color: var(--dark-color);
            padding: 12px 30px;
            font-weight: bold;
            transition: all 0.3s;
        }
        .btn-secondary:hover {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
        }
        .news-card {
            border-left: 5px solid var(--primary-color);
            padding-left: 20px;
            margin-bottom: 30px;
        }
        .news-card h5 {
            color: var(--primary-color);
        }
        .stats-number {
            font-size: 3rem;
            font-weight: bold;
            color: var(--primary-color);
        }
        .stats-label {
            color: var(--dark-color);
            font-size: 1.2rem;
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 109, 115, 0.25);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }