.letter-article-content {
    font-size: 1.05rem;
    line-height: 1.85;
    color: #2c3e50;
}

.letter-article-content h1,
.letter-article-content h2,
.letter-article-content h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: #1a2332;
    font-family: Georgia, 'Times New Roman', serif;
}

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

.letter-article-content a {
    color: #1e3a5f;
    text-decoration: underline;
    text-decoration-color: #c5a55a;
    text-underline-offset: 2px;
}

.letter-article-content a:hover {
    color: #c5a55a;
}

.letter-article-content img {
    max-width: 100%;
    border-radius: 4px;
    margin: 1rem 0;
}

.letter-article-content ul,
.letter-article-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.letter-article-content blockquote {
    border-left: 3px solid #c5a55a;
    margin: 1rem 0;
    padding: 0.5rem 1.25rem;
    background: #fdfbf6;
    border-radius: 0 4px 4px 0;
    color: #4a5568;
}

.letter-article-content code {
    background-color: #eef1f5;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    padding: 0 3px;
}

.letter-article-content .ad-container {
    border: 2px dashed #d1d5db;
    border-radius: 4px;
    background: #fafafa;
    position: relative;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.letter-article-content .ad-container::before {
    content: 'Advertisement';
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #8b95a3;
}

.letter-article-content .ad-container ins,
.letter-article-content .ad-container script {
    display: none;
}

.letter-article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.95rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.letter-article-content th,
.letter-article-content td {
    padding: 0.8rem 1rem;
    border: 1px solid #e2e8f0;
    text-align: left;
}

.letter-article-content thead th {
    background-color: #1e3a5f;
    color: #ffffff;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid #1a2332;
}

.letter-article-content tbody tr:nth-child(even) {
    background-color: #f8fafc;
}

.letter-article-content tbody tr:hover {
    background-color: #f1f5f9;
}