:root {
            --primary-color: #3a5a40;
            --secondary-color: #588157;
            --accent-color: #a3b18a;
            --light-color: #dad7cd;
            --text-dark: #344e41;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: #333;
            line-height: 1.8;
        }
        .hero-section {
            background: linear-gradient(rgba(58, 90, 64, 0.85), rgba(58, 90, 64, 0.9)), url('https://images.unsplash.com/photo-1586023492125-27b2c045efd7?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0 100px;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            color: var(--primary-color);
            font-weight: 700;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--accent-color);
        }
        .section-title.text-center:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .product-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .product-card img {
            height: 250px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .product-card:hover img {
            transform: scale(1.05);
        }
        .product-card .card-body {
            padding: 1.5rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 10px 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            padding: 15px 0;
            transition: all 0.3s ease;
        }
        .navbar.scrolled {
            padding: 10px 0;
            background-color: rgba(255, 255, 255, 0.98);
        }
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        .nav-link {
            color: var(--text-dark);
            font-weight: 500;
            margin: 0 5px;
            transition: color 0.3s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: var(--light-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary-color);
            font-size: 30px;
        }
        .footer {
            background-color: var(--text-dark);
            color: white;
            padding: 60px 0 20px;
        }
        .footer a {
            color: var(--light-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: white;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-top: 40px;
            font-size: 0.9rem;
        }
        .flink {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 8px 20px;
            margin: 5px 10px 5px 0;
            border-radius: 50px;
            transition: all 0.3s ease;
            color: white;
            text-decoration: none;
        }
        .flink:hover {
            background: var(--primary-color);
            transform: translateY(-3px);
            color: white;
        }
        .contact-info {
            background: var(--light-color);
            padding: 40px;
            border-radius: 10px;
            height: 100%;
        }
        .news-card {
            border-left: 4px solid var(--accent-color);
            padding-left: 20px;
            margin-bottom: 30px;
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--accent-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--accent-color);
        }
        .process-step {
            text-align: center;
            padding: 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            height: 100%;
            transition: transform 0.3s ease;
        }
        .process-step:hover {
            transform: translateY(-10px);
        }
        .process-step .step-number {
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-weight: bold;
            font-size: 1.2rem;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 100px 0 60px;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .contact-info {
                padding: 25px;
                margin-top: 30px;
            }
        }