:root {
            --primary-green: #2a6e3f;
            --secondary-green: #4a9e5f;
            --light-green: #e9f5ec;
            --dark-green: #1a4d2f;
            --accent-brown: #8b7355;
            --text-dark: #333333;
            --text-light: #666666;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-green) !important;
        }
        .nav-link {
            font-weight: 500;
            color: var(--text-dark) !important;
            transition: all 0.3s;
            margin: 0 5px;
            padding: 8px 15px !important;
            border-radius: 4px;
        }
        .nav-link:hover, .nav-link.active {
            background-color: var(--light-green);
            color: var(--primary-green) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(42, 110, 63, 0.85), rgba(26, 77, 47, 0.9)), url('https://images.unsplash.com/photo-1500382017468-9049fed747ef?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0;
            margin-top: 76px;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            color: var(--primary-green);
            font-weight: 700;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 70px;
            height: 4px;
            background-color: var(--accent-brown);
        }
        .section-title.text-center::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(42, 110, 63, 0.1);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background-color: var(--light-green);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary-green);
            font-size: 30px;
        }
        .product-card {
            border: 1px solid #eee;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
            height: 100%;
        }
        .product-card:hover {
            border-color: var(--primary-green);
            box-shadow: 0 10px 20px rgba(42, 110, 63, 0.1);
        }
        .product-img {
            height: 220px;
            overflow: hidden;
        }
        .product-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .product-card:hover .product-img img {
            transform: scale(1.05);
        }
        .bg-light-green {
            background-color: var(--light-green);
        }
        .btn-primary {
            background-color: var(--primary-green);
            border-color: var(--primary-green);
            padding: 10px 25px;
            font-weight: 500;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--dark-green);
            border-color: var(--dark-green);
            transform: translateY(-2px);
        }
        .contact-info li {
            margin-bottom: 15px;
            padding-left: 30px;
            position: relative;
        }
        .contact-info i {
            position: absolute;
            left: 0;
            top: 5px;
            color: var(--primary-green);
        }
        .friendlink {
            background-color: #f8f9fa;
            padding: 60px 0;
        }
        .flink {
            display: inline-block;
            background-color: white;
            padding: 10px 20px;
            margin: 5px 10px;
            border-radius: 5px;
            color: var(--text-dark);
            text-decoration: none;
            border: 1px solid #eaeaea;
            transition: all 0.3s;
        }
        .flink:hover {
            color: var(--primary-green);
            border-color: var(--primary-green);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        footer {
            background-color: var(--dark-green);
            color: rgba(255,255,255,0.8);
        }
        footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: color 0.3s;
        }
        footer a:hover {
            color: white;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 40px;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
                margin-top: 66px;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }