/* 标题层级 */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    margin-top: 24px;
    margin-bottom: 16px;
    font-weight: 600;
    line-height: 1.25;
}

.markdown-body h1 {
    font-size: 2em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid #d0d7de;
}

.markdown-body h2 {
    font-size: 1.5em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid #d0d7de;
}

.markdown-body h3 { font-size: 1.25em; }
.markdown-body h4 { font-size: 1em; }

/* 段落与文本 */
.markdown-body p {
    margin-top: 0;
    margin-bottom: 16px;
}

/* 链接 */
.markdown-body a {
    color: #0969da;
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

/* 强调 */
.markdown-body strong {
    font-weight: 600;
}

.markdown-body em {
    font-style: italic;
}

/* 列表 */
.markdown-body ul,
.markdown-body ol {
    margin-top: 0;
    margin-bottom: 16px;
    padding-left: 2em;
}

.markdown-body li + li {
    margin-top: 0.25em;
}

/* 引用块 */
.markdown-body blockquote {
    margin: 0 0 16px 0;
    padding: 0 1em;
    color: #57606a;
    border-left: 0.25em solid #d0d7de;
}

/* 代码：行内代码与代码块 */
.markdown-body code {
    padding: 0.2em 0.4em;
    margin: 0;
    font-size: 85%;
    background-color: rgba(175, 184, 193, 0.2);
    border-radius: 6px;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

.markdown-body pre {
    margin-top: 0;
    margin-bottom: 16px;
    padding: 16px;
    overflow: auto;
    font-size: 85%;
    line-height: 1.45;
    background-color: #f6f8fa;
    border-radius: 6px;
}

.markdown-body pre code {
    padding: 0;
    background-color: transparent;
    border-radius: 0;
    font-size: 100%;
    white-space: pre;
}

/* 表格 */
.markdown-body table {
    border-spacing: 0;
    border-collapse: collapse;
    margin-top: 0;
    margin-bottom: 16px;
    width: 100%;
    overflow: auto;
}

.markdown-body table th,
.markdown-body table td {
    padding: 6px 13px;
    border: 1px solid #d0d7de;
}

.markdown-body table th {
    font-weight: 600;
    background-color: #f6f8fa;
}

.markdown-body table tr:nth-child(2n) {
    background-color: #f6f8fa;
}

/* 图片 */
.markdown-body img {
    max-width: 100%;
    height: auto;
    box-sizing: content-box;
}

/* 分割线 */
.markdown-body hr {
    height: 0.25em;
    padding: 0;
    margin: 24px 0;
    background-color: #d0d7de;
    border: 0;
}