:root {
            --primary-green: #2e7d32;
            --secondary-green: #4caf50;
            --accent-orange: #ff9800;
            --dark-gray: #333333;
            --light-gray: #f8f9fa;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: var(--dark-gray);
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
        }
        .navbar-brand i {
            color: var(--primary-green);
            margin-right: 10px;
        }
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                        url('https://images.unsplash.com/photo-1586771107445-d3ca888129fe?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 150px 0;
            text-align: center;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            margin-bottom: 30px;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        .section-title {
            color: var(--primary-green);
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: var(--accent-orange);
        }
        .card {
            border: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .product-card .card-img-top {
            height: 220px;
            object-fit: cover;
        }
        .news-card .card-img-top {
            height: 200px;
            object-fit: cover;
        }
        .btn-primary {
            background-color: var(--primary-green);
            border-color: var(--primary-green);
            padding: 10px 30px;
            font-weight: 600;
        }
        .btn-primary:hover {
            background-color: #1b5e20;
            border-color: #1b5e20;
        }
        .btn-outline-primary {
            color: var(--primary-green);
            border-color: var(--primary-green);
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-green);
            border-color: var(--primary-green);
        }
        .feature-icon {
            font-size: 3rem;
            color: var(--primary-green);
            margin-bottom: 20px;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-green);
        }
        .flink {
            display: inline-block;
            background-color: var(--light-gray);
            padding: 10px 20px;
            margin: 5px 10px;
            border-radius: 5px;
            text-decoration: none;
            color: var(--dark-gray);
            transition: all 0.3s ease;
            border: 1px solid #dee2e6;
        }
        .flink:hover {
            background-color: var(--primary-green);
            color: white;
            transform: translateY(-3px);
        }
        .footer {
            background-color: #212529;
            color: #adb5bd;
            padding-top: 60px;
        }
        .footer a {
            color: #adb5bd;
            text-decoration: none;
        }
        .footer a:hover {
            color: white;
        }
        .contact-info li {
            margin-bottom: 15px;
        }
        .contact-info i {
            width: 30px;
            color: var(--secondary-green);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-green);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            z-index: 1000;
            cursor: pointer;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .back-to-top.show {
            opacity: 1;
        }
        .map-container {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 100px 0;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }