:root {
            --primary-color: #1a6b3c;
            --secondary-color: #f8b500;
            --dark-color: #333;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
        }
        body {
            font-family: "Microsoft YaHei", sans-serif;
            color: var(--dark-color);
            line-height: 1.8;
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: bold;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        .navbar-nav .nav-link {
            color: var(--dark-color);
            font-weight: 500;
            padding: 0.5rem 1rem;
            transition: color 0.3s;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1500382017468-9049fed747ef?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 150px 0;
            text-align: center;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            font-weight: bold;
        }
        .section-title {
            color: var(--primary-color);
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 10px;
            margin-bottom: 40px;
            display: inline-block;
        }
        .card {
            border: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 12px 30px;
            font-weight: bold;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: #14532d;
            border-color: #14532d;
            transform: scale(1.05);
        }
        .icon-box {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 20px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
        }
        .friendlink .flink {
            display: inline-block;
            background: var(--light-color);
            color: var(--primary-color);
            padding: 10px 20px;
            margin: 5px;
            border-radius: 5px;
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid #ddd;
        }
        .friendlink .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .contact-info i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        .img-hover {
            overflow: hidden;
            border-radius: 10px;
        }
        .img-hover img {
            transition: transform 0.5s;
            width: 100%;
            height: auto;
        }
        .img-hover:hover img {
            transform: scale(1.05);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .navbar-brand {
                font-size: 1.5rem;
            }
        }