:root {
            --primary-color: #1a6e3a;
            --secondary-color: #d32f2f;
            --accent-color: #ff9800;
            --light-bg: #f8f9fa;
            --dark-text: #333;
            --border-radius: 8px;
            --box-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: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary-color);
        }
        .navbar {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            padding: 1rem 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 600;
            padding: 0.5rem 1.2rem !important;
            color: #555 !important;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
            background-color: rgba(26, 110, 58, 0.08);
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1498837167922-ddd27525d352?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 8rem 0;
            position: relative;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        .section-padding {
            padding: 5rem 0;
        }
        .icon-box {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            height: 100%;
            border-top: 4px solid var(--primary-color);
        }
        .icon-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .icon-box i {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .product-card {
            border: none;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            height: 100%;
        }
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .product-card img {
            height: 220px;
            object-fit: cover;
            transition: var(--transition);
        }
        .product-card:hover img {
            transform: scale(1.05);
        }
        .badge-custom {
            background-color: var(--secondary-color);
            color: white;
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-weight: 600;
        }
        .contact-info-box {
            background: var(--light-bg);
            padding: 2rem;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--primary-color);
        }
        .footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 4rem 0 2rem;
        }
        .footer a {
            color: #bdc3c7;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            padding-left: 5px;
        }
        .flink {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            color: #ecf0f1;
            padding: 0.6rem 1.5rem;
            margin: 0.5rem;
            border-radius: 30px;
            transition: var(--transition);
            text-decoration: none !important;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            border-color: var(--primary-color);
        }
        .certification-logo {
            max-height: 70px;
            margin: 1rem;
            filter: grayscale(20%);
            opacity: 0.9;
            transition: var(--transition);
        }
        .certification-logo:hover {
            filter: grayscale(0);
            opacity: 1;
            transform: scale(1.05);
        }
        .timeline-item {
            border-left: 3px solid var(--primary-color);
            padding-left: 2rem;
            padding-bottom: 2rem;
            position: relative;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -10px;
            top: 0;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary-color);
        }
        .btn-custom {
            background: var(--primary-color);
            color: white;
            padding: 0.7rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            border: 2px solid var(--primary-color);
            transition: var(--transition);
        }
        .btn-custom:hover {
            background: transparent;
            color: var(--primary-color);
            transform: translateY(-3px);
        }
        .map-container {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            height: 400px;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .news-card {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            height: 100%;
            background: white;
        }
        .news-card:hover {
            transform: translateY(-10px);
        }
        .news-date {
            position: absolute;
            top: 15px;
            left: 15px;
            background: var(--primary-color);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }