/**
 * 统一 Markdown 展示样式（公开站 .pub-content 与编辑器预览 .md-preview 共用）
 * 覆盖 AI 输出常见元素：表格、任务列表、脚注、公式、代码块（语言标签 + 复制）
 */

.md-content {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text, #1f2937);
    word-break: break-word;
}

.md-content > *:first-child { margin-top: 0; }

.md-content h1,
.md-content h2,
.md-content h3,
.md-content h4,
.md-content h5,
.md-content h6 {
    color: var(--text, #111827);
    line-height: 1.4;
    margin: 26px 0 12px;
    scroll-margin-top: 84px;
}
.md-content h1 { font-size: 26px; }
.md-content h2 { font-size: 22px; }
.md-content h3 { font-size: 19px; }
.md-content h4 { font-size: 17px; }
.md-content h5 { font-size: 15.5px; }
.md-content h6 { font-size: 15px; color: var(--muted, #6b7280); }

.md-content p { margin: 0 0 14px; }

.md-content a {
    color: var(--primary, #448AFF);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.md-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 8px 0;
    border: 1px solid var(--line, #e5e7eb);
}

.md-content ul,
.md-content ol { padding-left: 24px; margin: 0 0 14px; }
.md-content li { margin-bottom: 6px; }
.md-content li > ul,
.md-content li > ol { margin: 6px 0 0; }

/* 任务列表 */
.md-content li > input[type="checkbox"] { margin-right: 6px; vertical-align: middle; }
.md-content li:has(> input[type="checkbox"]) { list-style: none; }

.md-content blockquote {
    margin: 16px 0;
    padding: 10px 18px;
    border-left: 3px solid var(--primary, #448AFF);
    background: #fafbfc;
    color: var(--text-2, #4b5563);
    border-radius: 0 8px 8px 0;
}
.md-content blockquote > :last-child { margin-bottom: 0; }

.md-content hr {
    border: 0;
    border-top: 1px solid var(--line, #e5e7eb);
    margin: 26px 0;
}

.md-content code {
    background: #f3f4f6;
    padding: 2px 6px;
    border-radius: 5px;
    /* font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    font-size: 13px;
}

/* 代码块：语言标签 + 复制按钮 */
.md-content pre {
    background: #f8f9fb;
    border: 1px solid var(--line, #e5e7eb);
    border-radius: 10px;
    padding: 0;
    overflow: hidden;
    margin: 0 0 16px;
    position: relative;
}
.md-content pre code {
    display: block;
    background: none;
    padding: 14px 16px;
    overflow-x: auto;
    color: #24292f;
    font-size: 13px;
    line-height: 1.65;
}
.md-content .code-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: #f1f3f6;
    border-bottom: 1px solid var(--line, #e5e7eb);
    font-size: 12px;
    color: var(--muted, #6b7280);
}
.md-content .code-lang { letter-spacing: .3px; }
.md-content .code-copy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: 0;
    background: transparent;
    color: var(--muted, #6b7280);
    font-size: 12px;
    padding: 0;
    border-radius: 5px;
    cursor: pointer;
}
.md-content .code-copy:hover { background: #e5e7eb; color: var(--text, #111827); }
.md-content .code-copy.is-copied { color: #16a34a; }
.md-content .code-copy svg { display: block; }

/* 表格 */
.md-content .table-wrap {
    overflow-x: auto;
    margin: 0 0 16px;
}
.md-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.md-content th,
.md-content td {
    border: 1px solid var(--line, #e5e7eb);
    padding: 8px 12px;
    text-align: left;
}
.md-content th {
    background: #fafbfc;
    color: var(--text, #111827);
    font-weight: 600;
}
.md-content tbody tr:nth-child(even) { background: #fcfcfd; }

/* 脚注 */
.md-content .footnotes {
    margin-top: 28px;
    padding-top: 12px;
    border-top: 1px solid var(--line, #e5e7eb);
    font-size: 13.5px;
    color: var(--muted, #6b7280);
}
.md-content .footnotes ol { padding-left: 20px; }
.md-content .footnote-backref { text-decoration: none; }

/* 数学公式（KaTeX 渲染前后） */
.md-content .math-inline { white-space: nowrap; }
.md-content .math-block {
    display: block;
    text-align: center;
    margin: 14px 0;
    overflow-x: auto;
    white-space: nowrap;
}
.md-content .katex { font-size: 1.05em; }
.md-content .katex-display { margin: 0; }

/* 语法高亮 token（GitHub 浅色） */
.md-content .token.comment,
.md-content .token.prolog,
.md-content .token.doctype,
.md-content .token.cdata { color: #6a737d; font-style: italic; }
.md-content .token.punctuation { color: #24292f; }
.md-content .token.property,
.md-content .token.tag,
.md-content .token.constant,
.md-content .token.symbol,
.md-content .token.deleted { color: #005cc5; }
.md-content .token.boolean,
.md-content .token.number { color: #005cc5; }
.md-content .token.selector,
.md-content .token.attr-name,
.md-content .token.string,
.md-content .token.char,
.md-content .token.builtin,
.md-content .token.inserted { color: #22863a; }
.md-content .token.operator,
.md-content .token.entity,
.md-content .token.url { color: #d73a49; }
.md-content .token.atrule,
.md-content .token.attr-value,
.md-content .token.keyword { color: #d73a49; }
.md-content .token.function,
.md-content .token.class-name { color: #6f42c1; }
.md-content .token.regex,
.md-content .token.important,
.md-content .token.variable { color: #e36209; }
.md-content .token.important,
.md-content .token.bold { font-weight: 700; }
.md-content .token.italic { font-style: italic; }
.md-content .token.entity { cursor: help; }