.post-content .image-container {
    text-align: center;
    margin: 1rem auto;
}

.post-content .image-container img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.post-content .image-caption {
    color: #666;
    font-size: 0.9em;
    margin-top: 0.5em;
    font-style: italic;
    text-align: center;
    margin: 1rem auto;
}

.post-content h1 {
    font-size: 2em;
    color: #2c3e50;
    border-bottom: 2px solid #cf6a87;
    padding-bottom: 0.3em;
    margin-bottom: 1em;
}

.post-content h2 {
    font-size: 1.5em;
    color: #34495e;
    border-left: 4px solid #cf6a87;
    padding-left: 0.8em;
    margin: 1em 0;
    text-decoration: none;
    border-bottom: none;  /* 添加这行 */
}

.post-content h3 {
    font-size: 1.3em;
    color: #34495e;
    position: relative;
    padding-left: 1em;
    margin: 1em 0;
    text-decoration: none;
    border-bottom: none;  /* 添加这行 */
}

.post-content h2:after,
.post-content h3:after {
    display: none;  /* 添加这个规则 */
}

.post-content h3::before {
    content: "•";
    color: #cf6a87;
    position: absolute;
    left: 0;
    font-size: 1.2em;
}