.blog-main {
    margin-top: 80px;
    padding: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.blog-navigation {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
}

.nav-button {
    background-color: #7F7F7F;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-family: Arial, sans-serif;
    transition: background-color 0.3s;
}

.nav-button:hover {
    background-color: #666;
}

.nav-button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.blog-article {
    line-height: 1.8;
}

.blog-header {
    margin-bottom: 30px;
    text-align: center;
    border-bottom: 2px solid #eee;
    padding-bottom: 20px;
}

.blog-title {
    font-size: 2.2em;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
}

.blog-meta {
    color: #666;
    font-size: 14px;
}

.blog-content {
    font-size: 16px;
    line-height: 1.8;
}

.blog-content p {
    margin-bottom: 20px;
}

.blog-content h2 {
    color: #333;
    margin: 30px 0 15px 0;
    font-size: 1.5em;
}

.blog-content h3 {
    color: #333;
    margin: 25px 0 10px 0;
    font-size: 1.3em;
}

.blog-content a {
    color: #0066cc;
    text-decoration: underline;
}

.blog-content a:hover {
    color: #004499;
}

.blog-content ul, .blog-content ol {
    margin: 15px 0;
    padding-left: 30px;
}

.blog-content li {
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .blog-main {
        margin-top: 70px;
        padding: 15px;
    }
    
    .blog-title {
        font-size: 1.8em;
    }
    
    .nav-button {
        padding: 8px 15px;
        font-size: 14px;
    }
}