/* ============================================================
   note.css — Markdown 排版样式
   阅读态 / 编辑态 / 导出的 HTML 共用，保证三处外观一致。
   ============================================================ */

:root {
    --md-text: #1f2329;
    --md-text-2: #4e5969;
    --md-muted: #8f959e;
    --md-border: #eaebef;
    --md-border-strong: #dfe1e6;
    --md-bg: #ffffff;
    --md-bg-soft: #f7f8fa;
    --md-accent: #1a6dff;
    --md-code-bg: #f6f7f9;
    --md-radius: 8px;
    --md-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    --md-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
        "Liberation Mono", "Courier New", monospace;
}

.markdown-body {
    font-family: var(--md-font);
    font-size: 16px;
    line-height: 1.78;
    color: var(--md-text);
    word-wrap: break-word;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* ---------- 标题 ---------- */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    margin: 1.9em 0 0.7em;
    font-weight: 600;
    line-height: 1.4;
    color: var(--md-text);
    letter-spacing: -0.01em;
    scroll-margin-top: 90px;
}

.markdown-body > h1:first-child,
.markdown-body > h2:first-child,
.markdown-body > h3:first-child {
    margin-top: 0.1em;
}

.markdown-body h1 { font-size: 1.72em; }
.markdown-body h2 { font-size: 1.42em; }
.markdown-body h3 { font-size: 1.2em; }
.markdown-body h4 { font-size: 1.05em; }
.markdown-body h5 { font-size: 0.97em; }
.markdown-body h6 {
    font-size: 0.92em;
    color: var(--md-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.markdown-body h1 { padding-bottom: 0.35em; border-bottom: 1px solid var(--md-border); }
.markdown-body h2 { padding-bottom: 0.28em; border-bottom: 1px solid var(--md-border); }

/* ---------- 段落与行内 ---------- */
.markdown-body p {
    margin: 0.9em 0;
}

.markdown-body strong { font-weight: 660; color: var(--md-text); }
.markdown-body em { font-style: italic; }
.markdown-body del { color: var(--md-muted); }
.markdown-body mark {
    background: #fff3c4;
    color: inherit;
    padding: 0.08em 0.24em;
    border-radius: 3px;
}

.markdown-body a {
    color: var(--md-accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(26, 109, 255, 0.28);
    transition: border-color 0.15s ease, color 0.15s ease;
}
.markdown-body a:hover {
    border-bottom-color: var(--md-accent);
}

.markdown-body hr {
    height: 1px;
    margin: 2.2em 0;
    border: 0;
    background: var(--md-border);
}

.markdown-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--md-radius);
    margin: 0.4em 0;
}

.markdown-body kbd {
    display: inline-block;
    padding: 0.14em 0.44em;
    font-family: var(--md-mono);
    font-size: 0.82em;
    line-height: 1.4;
    color: var(--md-text-2);
    background: #fff;
    border: 1px solid var(--md-border-strong);
    border-bottom-width: 2px;
    border-radius: 5px;
}

/* ---------- 行内代码 ---------- */
.markdown-body code {
    font-family: var(--md-mono);
    font-size: 0.875em;
    padding: 0.16em 0.4em;
    margin: 0 0.1em;
    background: var(--md-code-bg);
    border: 1px solid var(--md-border);
    border-radius: 5px;
    color: #c7254e;
    word-break: break-word;
}

/* ---------- 代码块 ---------- */
.markdown-body pre {
    position: relative;
    margin: 1.1em 0;
    padding: 16px 18px;
    background: var(--md-code-bg);
    border: 1px solid var(--md-border);
    border-radius: 10px;
    overflow-x: auto;
    line-height: 1.62;
}
.markdown-body pre code {
    display: block;
    padding: 0;
    margin: 0;
    background: none;
    border: 0;
    color: var(--md-text);
    font-size: 13.5px;
    white-space: pre;
    word-break: normal;
}
/* 语言标签：放在左上，给右上角的「复制」按钮让位 */
.markdown-body pre[data-lang]::before {
    content: attr(data-lang);
    position: absolute;
    top: 8px;
    left: 14px;
    font-family: var(--md-font);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: #b0b6be;
    text-transform: uppercase;
    pointer-events: none;
}

/* ---------- 代码块顶部工具条（仅在有复制按钮时占位） ---------- */
.markdown-body pre.has-copy {
    padding-top: 36px;
}
.markdown-body pre.has-copy[data-lang]::before {
    top: 12px;
}

.code-copy {
    position: absolute;
    top: 6px;
    right: 8px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 46px;
    height: 24px;
    padding: 0 9px;
    font-family: var(--md-font);
    font-size: 11.5px;
    line-height: 1;
    color: var(--md-text-2);
    background: #fff;
    border: 1px solid var(--md-border);
    border-radius: 6px;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    opacity: 0;
    transition: opacity .14s, color .14s, border-color .14s, background .14s;
}
.markdown-body pre:hover .code-copy,
.code-copy:focus-visible {
    opacity: 1;
}
.code-copy:hover {
    color: #1a6dff;
    border-color: #bcd4ff;
    background: #f7faff;
}
.code-copy.ok {
    opacity: 1;
    color: #1a9e5e;
    border-color: #b9e6cd;
    background: #f2fbf6;
}
.code-copy.err {
    opacity: 1;
    color: #d03050;
    border-color: #f3c1cb;
    background: #fdf3f5;
}
/* 触屏没有 hover，直接常显 */
@media (hover: none) {
    .code-copy { opacity: 1; }
}
/* 打印与导出时不需要按钮 */
@media print {
    .code-copy { display: none !important; }
    .markdown-body pre.has-copy { padding-top: 16px; }
}

/* ---------- 引用 ---------- */
.markdown-body blockquote {
    margin: 1.1em 0;
    padding: 0.55em 1.1em;
    color: var(--md-text-2);
    background: var(--md-bg-soft);
    border-left: 3px solid var(--md-border-strong);
    border-radius: 0 8px 8px 0;
}
.markdown-body blockquote > :first-child { margin-top: 0; }
.markdown-body blockquote > :last-child { margin-bottom: 0; }
.markdown-body blockquote blockquote {
    background: transparent;
    border-left-color: var(--md-border);
}

/* ---------- 列表 ---------- */
.markdown-body ul,
.markdown-body ol {
    margin: 0.85em 0;
    padding-left: 1.6em;
}
.markdown-body li {
    margin: 0.32em 0;
}
.markdown-body li > ul,
.markdown-body li > ol {
    margin: 0.3em 0;
}
.markdown-body li::marker {
    color: var(--md-muted);
}
.markdown-body ul.contains-task-list,
.markdown-body li.task {
    list-style: none;
}
.markdown-body li.task {
    display: flex;
    align-items: flex-start;
    gap: 0.55em;
    margin-left: -1.35em;
}
.markdown-body li.task input[type="checkbox"] {
    flex: none;
    width: 15px;
    height: 15px;
    margin: 0.42em 0 0;
    accent-color: var(--md-accent);
    cursor: default;
}
.markdown-body li.task > span {
    min-width: 0;
}

/* ---------- 表格 ---------- */
.markdown-body .table-wrap {
    margin: 1.2em 0;
    overflow-x: auto;
    border-radius: 10px;
}
.markdown-body .table-wrap > table { margin: 0; }

.markdown-body table {
    width: auto;
    min-width: 100%;
    margin: 1.2em 0;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--md-border);
    border-radius: 10px;
    overflow: hidden;
    font-size: 0.94em;
}
.markdown-body .table-wrap > table { min-width: 100%; }
.markdown-body thead th {
    background: var(--md-bg-soft);
    font-weight: 600;
    color: var(--md-text);
}
.markdown-body th,
.markdown-body td {
    padding: 9px 14px;
    border-bottom: 1px solid var(--md-border);
    text-align: left;
    vertical-align: top;
}
.markdown-body tbody tr:last-child td {
    border-bottom: 0;
}

/* ---------- HTML 块 ---------- */
.markdown-body details {
    margin: 1em 0;
    padding: 0.7em 1em;
    background: var(--md-bg-soft);
    border: 1px solid var(--md-border);
    border-radius: 10px;
}
.markdown-body summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--md-text);
}
.markdown-body figure { margin: 1.2em 0; }
.markdown-body figcaption {
    margin-top: 0.5em;
    font-size: 0.88em;
    color: var(--md-muted);
    text-align: center;
}

/* ---------- 空态 ---------- */
.markdown-body > *:first-child { margin-top: 0; }
.markdown-body > *:last-child { margin-bottom: 0; }

/* ---------- 代码高亮底色交给容器 ---------- */
.markdown-body pre code.hljs {
    background: transparent;
    padding: 0;
}
.markdown-body pre code.hljs::selection,
.markdown-body pre code.hljs *::selection {
    background: rgba(26, 109, 255, .2);
}