/* 公共样式 */
html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background-color: #f7f7f7;
    color: #333;
}
.article-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.article-title {
    font-size: 2.5rem;
    margin-top: 0;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #eee;
    text-align: center;
    color: #336699;
}
.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
}
.date-time {
    background-color: #e0e7ff;
    padding: 5px;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 10px;
}
.response-date-time {
    background-color: #d1e7dd;
    padding: 5px;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 10px;
}
.text-block {
    line-height: 1.5;
    margin: 1em 0;
    text-align: left;
    display: block;
}
.fullscreen-img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 30px auto;
    object-fit: contain;
    border: 1px solid #e0e0e0;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}
blockquote {
    margin: 1em 0;
    padding: 10px 20px;
    background-color: #f0f0f0;
    border-left: 5px solid #336699;
}
@media (min-width: 768px) {
    .article-container {
        padding: 40px;
    }
}