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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    border-right: 2px solid #000;
    padding: 3rem 2rem;
    background-color: #f8f8f8;
}

.sidebar h1 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
}

.sidebar h1 a {
    color: #333;
    text-decoration: none;
}

.sidebar section {
    margin-bottom: 3rem;
}

.sidebar h2 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.sidebar p, .sidebar ul {
    font-size: 0.95rem;
    color: #555;
}

.sidebar ul {
    list-style: none;
    padding-left: 0;
}

.sidebar ul li {
    margin-bottom: 0.5rem;
}

.sidebar a {
    color: #0066cc;
    text-decoration: none;
}

.sidebar a:hover {
    text-decoration: underline;
}

.main-content {
    flex: 1;
    padding: 3rem;
}

.post {
    margin-bottom: 4rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid #ddd;
}

.post:last-child {
    border-bottom: none;
}

.post-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.post-meta {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.post-content {
    color: #333;
    font-size: 1.05rem;
}

.post-content p {
    margin-bottom: 1rem;
}

.read-more {
    display: inline-block;
    margin-top: 1rem;
    color: #0066cc;
    text-decoration: none;
    font-weight: 500;
}

.read-more:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 2px solid #000;
    }

    .main-content {
        padding: 2rem 1rem;
    }
}