.blog-container {
        max-width: 800px;
        margin: 0 auto;
        padding: 20px;
        font-family: Arial, sans-serif;
    }
    .blog-entry {
        border: 1px solid #ddd;
        margin: 20px 0;
        padding: 20px;
        border-radius: 8px;
        background-color: #f9f9f9;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        transition: all 0.3s ease;
    }
    .blog-entry.expired {
        background-color: #f5f5f5;
        border-color: #e0e0e0;
        color: #999;
    }
    .blog-entry.expired h2 {
        color: #999;
    }
    .blog-entry.expired .referral-code {
        color: #999;
    }
    .blog-entry.expired .blog-content {
        color: #999;
    }
    .blog-entry.expired a {
        color: #999 !important;
        text-decoration: none;
        pointer-events: none;
    }
    .blog-entry h2 {
        margin-top: 0;
        color: #333;
        border-bottom: 2px solid #eee;
        padding-bottom: 10px;
    }
    .promo-title {
        font-size: 1.4em;
        color: #2c3e50;
    }
    .end-date {
        color: #7f8c8d;
        font-size: 0.8em;
        margin-left: 15px;
        font-weight: normal;
    }
    .expired-date {
        color: #e74c3c;
        font-size: 0.8em;
        margin-left: 15px;
        font-weight: normal;
    }
    .referral-code {
        font-weight: bold;
        color: #e74c3c;
        margin: 10px 0;
        font-size: 1.1em;
    }
    .blog-content {
        margin: 15px 0;
        line-height: 1.6;
        color: #555;
    }
    .blog-content a {
        color: #3498db;
        text-decoration: none;
    }
    .blog-content a:hover {
        text-decoration: underline;
    }
    .timestamp {
        color: #95a5a6;
        font-size: 0.9em;
        border-top: 1px solid #ecf0f1;
        padding-top: 10px;
        margin-top: 15px;
    }
    .error {
        color: #e74c3c;
        padding: 20px;
        text-align: center;
        background-color: #ffeaea;
        border: 1px solid #e74c3c;
        border-radius: 5px;
    }