/* Markdown 主题样式 */
.markdown-body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    word-wrap: break-word;
    color: var(--text-color);
}

.markdown-body > *:first-child {
    margin-top: 0 !important;
}

.markdown-body > *:last-child {
    margin-bottom: 0 !important;
}

.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 var(--border-color);
}

.markdown-body h2 {
    font-size: 1.5em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--border-color);
}

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

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

.markdown-body h5 {
    font-size: 0.875em;
}

.markdown-body h6 {
    font-size: 0.85em;
    color: #6a737d;
}

.markdown-body p {
    margin-top: 0;
    margin-bottom: 16px;
}

.markdown-body blockquote {
    margin: 0;
    padding: 0 1em;
    color: #6a737d;
    border-left: 0.25em solid #dfe2e5;
}

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

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

.markdown-body code {
    font-family: var(--font-mono);
    font-size: 85%;
    padding: 0.2em 0.4em;
    margin: 0;
    background-color: var(--bg-secondary);
    border-radius: 3px;
}

.markdown-body pre {
    font-family: var(--font-mono);
    font-size: 85%;
    line-height: 1.45;
    padding: 16px;
    overflow: auto;
    background-color: var(--bg-secondary);
    border-radius: 6px;
}

.markdown-body pre code {
    display: inline;
    padding: 0;
    margin: 0;
    overflow: visible;
    line-height: inherit;
    word-wrap: normal;
    background-color: transparent;
    border: 0;
}

.markdown-body img {
    max-width: 100%;
    box-sizing: content-box;
    background-color: #fff;
    border-radius: 3px;
}

.markdown-body hr {
    height: 0.25em;
    padding: 0;
    margin: 24px 0;
    background-color: var(--border-color);
    border: 0;
}

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

.markdown-body table th {
    font-weight: 600;
}

.markdown-body table th,
.markdown-body table td {
    padding: 6px 13px;
    border: 1px solid var(--border-color);
}

.markdown-body table tr {
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color);
}

.markdown-body table tr:nth-child(2n) {
    background-color: var(--bg-secondary);
}

/* GitHub 主题 */
.github-theme {
    --md-text-color: #24292e;
    --md-link-color: #0366d6;
    --md-code-bg: #f6f8fa;
    --md-quote-color: #6a737d;
}

/* Vue 主题 */
.vue-theme {
    --md-text-color: #2c3e50;
    --md-link-color: #42b983;
    --md-code-bg: #f8f8f8;
    --md-quote-color: #999;
}

/* VuePress 主题 */
.vuepress-theme {
    --md-text-color: #2c3e50;
    --md-link-color: #3eaf7c;
    --md-code-bg: #282c34;
    --md-quote-color: #999;
}

/* 掘金主题 */
.juejin-theme {
    --md-text-color: #333;
    --md-link-color: #1e80ff;
    --md-code-bg: #f8f9fa;
    --md-quote-color: #666;
}

/* 代码行号 */
.markdown-body .line-numbers {
    position: relative;
    padding-left: 3.5em;
}

.markdown-body .line-numbers pre {
    padding-left: 3.5em;
}

.markdown-body .line-numbers .line-numbers-rows {
    position: absolute;
    pointer-events: none;
    top: 1em;
    left: 0;
    width: 3em;
    letter-spacing: -1px;
    border-right: 1px solid #999;
    user-select: none;
}

.markdown-body .line-numbers-rows > span {
    display: block;
    counter-increment: linenumber;
    color: #999;
}

.markdown-body .line-numbers-rows > span:before {
    content: counter(linenumber);
    display: block;
    padding-right: 0.8em;
    text-align: right;
}