:root {
            --primary-color: #2d5a27;
            --secondary-color: #d4af37;
            --accent-color: #8b4513;
            --light-bg: #f8f5f0;
            --dark-text: #333333;
        }
        body {
            font-family: "SimSun", "Microsoft YaHei", sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            transition: all 0.3s;
            position: relative;
        }
        .nav-link:hover {
            color: var(--secondary-color) !important;
        }
        .nav-link.active {
            color: var(--secondary-color) !important;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 5px;
            left: 15px;
            right: 15px;
            height: 2px;
            background-color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(45, 90, 39, 0.85), rgba(45, 90, 39, 0.9)), url('https://images.unsplash.com/photo-1564894809614-974c70f19d85?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 150px 0;
            margin-top: 76px;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 5px rgba(0,0,0,0.3);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .section-title {
            color: var(--primary-color);
            font-weight: 700;
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 2.5rem;
            text-align: center;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--secondary-color);
        }
        .section-subtitle {
            color: var(--accent-color);
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .card-hover {
            transition: transform 0.3s, box-shadow 0.3s;
            border: none;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
        }
        .card-hover: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;
        }
        .product-card:hover img {
            transform: scale(1.05);
        }
        .btn-primary-custom {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
            padding: 10px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary-custom:hover {
            background-color: #1f411b;
            border-color: #1f411b;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .btn-secondary-custom {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            color: #333;
            padding: 10px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-secondary-custom:hover {
            background-color: #b8941f;
            border-color: #b8941f;
            color: white;
            transform: translateY(-3px);
        }
        .feature-icon {
            font-size: 3rem;
            color: var(--secondary-color);
            margin-bottom: 1rem;
        }
        .process-step {
            position: relative;
            padding: 20px;
            background-color: var(--light-bg);
            border-radius: 10px;
            text-align: center;
            height: 100%;
        }
        .process-number {
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 40px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .testimonial-card {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
        }
        .testimonial-text {
            font-style: italic;
            margin-bottom: 1.5rem;
        }
        .client-img {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            object-fit: cover;
            border: 3px solid var(--secondary-color);
        }
        footer {
            background-color: #1a1a1a;
            color: #ccc;
            padding-top: 60px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
        }
        .social-icons a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background-color: #333;
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            color: white;
            margin-right: 10px;
            transition: all 0.3s;
        }
        .social-icons a:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
        }
        .copyright {
            background-color: #111;
            padding: 20px 0;
            margin-top: 40px;
        }
        .flink {
            display: inline-block;
            padding: 8px 15px;
            background-color: var(--light-bg);
            border-radius: 5px;
            margin: 5px;
            color: var(--primary-color);
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid #ddd;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .contact-info-box {
            background-color: var(--light-bg);
            border-radius: 10px;
            padding: 30px;
            height: 100%;
            text-align: center;
            transition: all 0.3s;
        }
        .contact-info-box:hover {
            background-color: white;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .contact-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            text-decoration: none;
            z-index: 1000;
            opacity: 0;
            transition: all 0.3s;
        }
        .back-to-top.visible {
            opacity: 1;
        }
        .back-to-top:hover {
            background-color: var(--secondary-color);
            color: #333;
            transform: translateY(-5px);
        }
        .about-img {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .about-img img {
            transition: transform 0.5s;
        }
        .about-img:hover img {
            transform: scale(1.05);
        }
        .timeline {
            position: relative;
            padding-left: 30px;
            margin-top: 30px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background-color: var(--secondary-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: var(--primary-color);
            border: 3px solid var(--secondary-color);
        }
        .timeline-date {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 5px;
        }
        .form-control-custom {
            border-radius: 5px;
            border: 1px solid #ddd;
            padding: 12px 15px;
            transition: all 0.3s;
        }
        .form-control-custom:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(45, 90, 39, 0.25);
        }
        .map-container {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            height: 100%;
        }
        .map-container iframe {
            width: 100%;
            height: 400px;
            border: none;
        }
        .news-card {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
            transition: all 0.3s;
        }
        .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .news-img {
            height: 200px;
            object-fit: cover;
        }
        .news-date {
            color: var(--primary-color);
            font-weight: 600;
        }
        .certificate-img {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }
        .certificate-img:hover {
            transform: scale(1.03);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .tea-culture-img {
            border-radius: 10px;
            overflow: hidden;
            height: 300px;
            object-fit: cover;
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        .stats-label {
            color: var(--accent-color);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .stats-section {
            background-color: var(--light-bg);
            padding: 60px 0;
        }
        .tea-category {
            text-align: center;
            padding: 30px 20px;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
            transition: all 0.3s;
        }
        .tea-category:hover {
            background-color: var(--light-bg);
            transform: translateY(-10px);
        }
        .tea-category-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }