/* 大标题+留白 */
#blogTitle h1 {
    font-size: 3em;
    letter-spacing: 3px;
}

.postBody {
    line-height: 1.9;
}

/* 图片样式 */
.postBody img {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin: 2em auto;
    display: block;
    max-width: 90%;
}

/* 引用块美化 */
blockquote {
    border-left: 3px solid #ff6b6b;
    background: #fff9f9;
    padding: 15px 20px;
    font-style: italic;
}