* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

header {
    background-color: #2466B3;
    color: white;
    padding: 1rem 0;
    border-bottom: 4px solid #1a4d8a;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-title {
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: white;
}

h1 {
    font-size: 2rem;
    color: #2466B3;
    margin: 1.5rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid #2466B3;
}

article {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: #ffffff;
}

article p {
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
    line-height: 1.8;
}

article h2 {
    color: #2466B3;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.6rem;
}

article h3 {
    color: #1a4d8a;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
}

article h4 {
    color: #333;
    margin-top: 1.2rem;
    margin-bottom: 0.6rem;
    font-size: 1.1rem;
}

.transition-section {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: #f9f9f9;
    border-left: 4px solid #2466B3;
}

.transition-section p {
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.links-section {
    margin: 2rem 0;
    padding: 2rem;
    background-color: #CCDDFF;
    border: 1px solid #2466B3;
    border-radius: 4px;
}

.links-section h3 {
    color: #2466B3;
    font-size: 1.4rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #2466B3;
}

.links-section h3:first-child {
    margin-top: 0;
}

.links-section ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem 1.5rem;
    margin-bottom: 1.5rem;
}

.links-section li {
    padding-left: 1.2rem;
    position: relative;
}

.links-section li:before {
    content: "►";
    position: absolute;
    left: 0;
    color: #2466B3;
    font-size: 0.8rem;
}

.links-section a {
    color: #1a4d8a;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.links-section a:hover {
    color: #2466B3;
    text-decoration: underline;
}

footer {
    background-color: #2466B3;
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: 3rem;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.6rem;
    }

    article {
        padding: 1rem;
    }

    article p {
        font-size: 1rem;
    }

    article h2 {
        font-size: 1.4rem;
    }

    article h3 {
        font-size: 1.2rem;
    }

    .links-section {
        padding: 1rem;
    }

    .links-section ul {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

    .links-section h3 {
        font-size: 1.2rem;
    }

    .container {
        padding: 10px;
    }

    .transition-section {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.4rem;
    }

    article h2 {
        font-size: 1.3rem;
    }

    article h3 {
        font-size: 1.1rem;
    }

    .links-section a {
        font-size: 0.9rem;
    }
}