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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 3rem;
}

header h1 {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

header h1 a {
    color: #667eea;
    text-decoration: none;
}

.subtitle {
    color: #666;
    font-size: 1.1rem;
}

main {
    padding-bottom: 4rem;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.post-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.post-header h2 {
    color: #333;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.post-header time {
    color: #999;
    font-size: 0.9rem;
}

.post-excerpt {
    margin: 1rem 0;
    color: #666;
    line-height: 1.8;
}

.read-more {
    display: inline-block;
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #764ba2;
}

.post-detail {
    background: white;
    border-radius: 15px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.post-detail h1 {
    color: #333;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.post-meta {
    color: #999;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #f0f0f0;
}

.post-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #444;
    margin-bottom: 2rem;
}

.back-link {
    display: inline-block;
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    padding: 0.8rem 1.5rem;
    border: 2px solid #667eea;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.back-link:hover {
    background: #667eea;
    color: white;
}

footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2rem 0;
    text-align: center;
    color: #666;
}

footer .icp {
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

footer .icp a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer .icp a:hover {
    color: #667eea;
}

@media (max-width: 768px) {
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .post-detail {
        padding: 2rem 1.5rem;
    }
    
    .post-detail h1 {
        font-size: 1.8rem;
    }
}