:root {
            --primary-color: #2a5c3d;
            --secondary-color: #8db596;
            --accent-color: #d4a574;
            --light-color: #f8f9fa;
            --dark-color: #1e3a2d;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.8;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-color) !important;
            font-size: 1.5rem;
        }
        .nav-link {
            font-weight: 500;
            transition: all 0.3s ease;
            margin: 0 5px;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--accent-color) !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(42, 92, 61, 0.85), rgba(42, 92, 61, 0.9)), url('https://images.unsplash.com/photo-1523348837708-15d4a09cfac2?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0 80px;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 50px;
            text-align: center;
            color: var(--dark-color);
            font-weight: 700;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: var(--accent-color);
        }
        .card-hover {
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            border: 1px solid #eaeaea;
            height: 100%;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            border-color: var(--secondary-color);
        }
        .bg-light-green {
            background-color: #f1f8f4 !important;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 10px 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--dark-color);
            border-color: var(--dark-color);
            transform: scale(1.05);
        }
        .btn-outline-primary {
            color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            background: var(--secondary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 1.8rem;
            transition: all 0.3s;
        }
        .icon-box:hover {
            background: var(--primary-color);
            transform: rotate(15deg) scale(1.1);
        }
        .product-img {
            height: 220px;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .product-img:hover {
            transform: scale(1.05);
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px;
            background: white;
            border-radius: 30px;
            color: var(--dark-color);
            text-decoration: none;
            border: 1px solid #ddd;
            transition: all 0.3s;
            font-size: 0.9rem;
        }
        .flink:hover {
            background: var(--secondary-color);
            color: white;
            border-color: var(--secondary-color);
            transform: translateY(-3px);
        }
        .footer {
            background: var(--dark-color);
            color: #ccc;
            padding-top: 60px;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: var(--accent-color);
        }
        .footer-bottom {
            background: rgba(0, 0, 0, 0.2);
            padding: 20px 0;
            margin-top: 40px;
            font-size: 0.9rem;
        }
        .contact-info li {
            margin-bottom: 15px;
            display: flex;
            align-items: flex-start;
        }
        .contact-info i {
            color: var(--accent-color);
            margin-right: 10px;
            margin-top: 5px;
        }
        .timeline {
            position: relative;
            padding-left: 30px;
            border-left: 2px solid var(--secondary-color);
            margin-left: 20px;
        }
        .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(--secondary-color);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 100px 0 60px;
                min-height: 70vh;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--dark-color);
            transform: translateY(-5px);
        }