:root {
            --primary-color: #1a6b3c;
            --secondary-color: #0d4d2a;
            --accent-color: #34a853;
            --light-bg: #f8f9fa;
            --dark-text: #333;
            --shadow: 0 5px 15px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            padding: 0.5rem 1.2rem !important;
            transition: var(--transition);
            border-radius: 4px;
        }
        .nav-link:hover, .nav-link.active {
            background-color: rgba(26, 107, 60, 0.1);
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1542601906990-b4d3fb778b09?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 150px 0;
            min-height: 85vh;
            display: flex;
            align-items: center;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .hero-section p {
            font-size: 1.2rem;
            max-width: 700px;
            margin-bottom: 2rem;
        }
        .btn-primary-custom {
            background-color: var(--accent-color);
            border: none;
            padding: 12px 35px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            color: var(--primary-color);
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background-color: var(--accent-color);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
        }
        .service-card, .project-card, .news-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            margin-bottom: 30px;
        }
        .service-card:hover, .project-card:hover, .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .flink {
            display: inline-block;
            background-color: var(--light-bg);
            padding: 10px 20px;
            margin: 8px;
            border-radius: 5px;
            text-decoration: none;
            color: var(--dark-text);
            transition: var(--transition);
            border: 1px solid #dee2e6;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        .friendlink {
            background-color: #f9f9f9;
            padding: 60px 0;
        }
        footer {
            background-color: #222;
            color: #bbb;
            padding-top: 60px;
        }
        footer h5 {
            color: #fff;
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--accent-color);
            padding-left: 10px;
        }
        footer a {
            color: #bbb;
            text-decoration: none;
            transition: color 0.3s;
        }
        footer a:hover {
            color: white;
        }
        .copyright {
            border-top: 1px solid #444;
            padding-top: 20px;
            margin-top: 40px;
            font-size: 0.9rem;
        }
        .contact-info li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        .contact-info i {
            margin-right: 12px;
            color: var(--accent-color);
            width: 20px;
            text-align: center;
        }
        .stats-counter {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0;
        }
        .stats-label {
            font-size: 1rem;
            color: #666;
        }
        .testimonial-card {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            border-left: 5px solid var(--accent-color);
        }
        .client-logo {
            filter: grayscale(100%);
            opacity: 0.7;
            transition: var(--transition);
        }
        .client-logo:hover {
            filter: grayscale(0);
            opacity: 1;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 100px 0;
                min-height: 70vh;
                text-align: center;
            }
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .stats-counter {
                font-size: 2rem;
            }
        }