body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: #333;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e4e4e4;
}
@media screen and (max-width: 550px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }
}
.site-title {
    font-size: 28px;
    font-weight: bold;
    color: #2c3e50;
}
.site-description {
    font-size: 14px;
    color: #6c757d;
    margin-top: 5px;
}
.header-links {
    display: flex;
    gap: 20px;
}
.header-link {
    color: #3490dc;
    text-decoration: none;
    font-size: 14px;
}
.header-link:hover {
    text-decoration: underline;
    color: #2779bd;
}
.post {
    margin-bottom: 20px;
}
.post-source {
  display: none;
    color: #6c757d;
    margin-bottom: 5px;
    font-size: 14px;
}
.post-title a {
    font-size: 20px;
    color: #3490dc;
    font-weight: 600;
    text-decoration: none;
}
.post-title a:hover {
    text-decoration: underline;
    color: #3490dc;
}
.post-summary {
    color: #495057;
    margin-top: 10px;
    line-height: 1.7;
}
.post-data {
    color: #6c757d;
    font-size: 14px;
}
.post-data a {
    color: #3490dc;
    text-decoration: none;
}
.post-data a:hover {
    text-decoration: underline;
    color: #2779bd;
}