:root {
    --primary-green: #2c5f2d;
    --secondary-green: #97bc62;
    --light-beige: #eae7d6;
}

body {
    background-color: #f8f9fa;
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
}

.navbar {
    background-color: var(--primary-green) !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.jumbotron {
    background: linear-gradient(to right, var(--primary-green), var(--secondary-green));
    color: white;
    padding: 4rem 2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.section-title {
    color: var(--primary-green);
    border-left: 5px solid var(--secondary-green);
    padding-left: 1rem;
    margin: 2rem 0;
    font-weight: 600;
}

.card {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card-header {
    background-color: var(--light-beige);
    font-weight: bold;
    font-size: 1.1rem;
}

.list-group-item {
    border-color: rgba(0,0,0,0.05);
}

footer {
    background-color: var(--primary-green);
    color: white;
    padding: 2rem 0;
    margin-top: 4rem;
}

.bi {
    margin-right: 0.5rem;
}

@media (max-width: 768px) {
    .jumbotron {
        padding: 2rem 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
}