/** Custom style defined file **/

/* 浅色模式加深页面底色，白色内容卡片继续使用主题的独立背景色。 */
:root {
  --body-bg-color: #e5e5e5;
}

.mydefined {
  font-size: 0.65em;
  color: #ed6c24;
}

.custom-head5 {
  font-size: 1.2em;
  color: #ed6c24;
  font-weight: bold;
}

/* 印象笔记导入的 Stata 博文：只调整呈现，不改动原始正文与图片。 */
.yinxiang-note {
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.yinxiang-note ul,
.yinxiang-note ol {
  margin-block: 0.55em;
  padding-inline-start: 1.65em;
}

.yinxiang-note li + li {
  margin-top: 0.28em;
}

.yinxiang-note img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.15em auto;
  border-radius: 6px;
  box-shadow: 0 2px 12px rgb(0 0 0 / 8%);
}

.yinxiang-note a {
  overflow-wrap: anywhere;
}

.yinxiang-note .highlight {
  margin-block: 1.25em;
}

/* Stata 代码块沿用 NexT 的 macOS 标题栏，并补充官方词法器的配色。 */
.highlight > .code-header.language-stata .code-lang::after {
  content: "Stata";
}

.highlight > .code-header.language-spss .code-lang::after {
  content: "SPSS";
}

.language-stata.hljs,
.language-spss.hljs {
  color: #f8f8f2;
  background: transparent;
}

.language-stata .hljs-comment,
.language-stata .hljs-quote,
.language-spss .hljs-comment,
.language-spss .hljs-quote {
  color: #8f9b87;
  font-style: italic;
}

.language-stata .hljs-keyword,
.language-stata .hljs-selector-tag,
.language-stata .hljs-meta,
.language-spss .hljs-keyword,
.language-spss .hljs-selector-tag,
.language-spss .hljs-meta {
  color: #f92672;
}

.language-stata .hljs-built_in,
.language-stata .hljs-type,
.language-stata .hljs-literal,
.language-spss .hljs-built_in,
.language-spss .hljs-type,
.language-spss .hljs-literal {
  color: #66d9ef;
}

.language-stata .hljs-string,
.language-stata .hljs-regexp,
.language-stata .hljs-symbol,
.language-spss .hljs-string,
.language-spss .hljs-regexp,
.language-spss .hljs-symbol {
  color: #e6db74;
}

.language-stata .hljs-number,
.language-stata .hljs-variable,
.language-stata .hljs-template-variable,
.language-spss .hljs-number,
.language-spss .hljs-variable,
.language-spss .hljs-template-variable {
  color: #ae81ff;
}

.language-stata .hljs-title,
.language-stata .hljs-function,
.language-stata .hljs-params,
.language-spss .hljs-title,
.language-spss .hljs-function,
.language-spss .hljs-params {
  color: #a6e22e;
}

/* SPSS 讲义沿用原有人工章节号；侧栏目录不再重复生成数字。 */
.post-toc.toc-unnumbered a::before {
  content: none !important;
  counter-increment: none !important;
}

/* 文章页脚统一为黑、白、灰配色。 */
.post-copyright {
  border-left-color: #222 !important;
}

.reward-container button {
  color: #555 !important;
  background: transparent !important;
  border-color: #777 !important;
}

.reward-container button:hover {
  color: #fff !important;
  background-color: #333 !important;
  border-color: #333 !important;
}

:root[data-theme="dark"] .reward-container button {
  color: #ddd !important;
  border-color: #aaa !important;
}

:root[data-theme="dark"] .reward-container button:hover {
  color: #fff !important;
  background-color: #111 !important;
  border-color: #777 !important;
}

/* 右下角工具按钮：悬停时只加深底色，图标保持白色。 */
.tool-buttons .button:hover,
.tool-buttons .back-to-top:hover {
  color: #fff !important;
  background-color: #111 !important;
  opacity: 1;
}

/* 语言菜单外仅保留一个中性翻译图标，选项内部不再重复显示。 */
.footer .i18n-translate {
  align-items: center;
  gap: 6px;
}

.footer .i18n-translate .language-switch-icon {
  display: inline-block;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  background-image: url("/imgs/language-switch.png") !important;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

:root[data-theme="dark"] .footer .i18n-translate .language-switch-icon {
  filter: invert(1);
}

/* 统一左侧菜单、文章正文和文章标题字号；元信息保持主题原值。 */
.site-subtitle,
.menu-item > a,
.menu-child-item > a {
  font-size: 15px;
}

.posts-expand .post-body {
  font-size: 15px;
}

/* 简介页开头的个人照片：保留原始比例，桌面端适度收敛，移动端自适应。 */
.about-profile-photo {
  margin: 0 auto 24px;
  text-align: center;
}

.about-profile-photo img {
  display: inline-block;
  width: 293px;
  max-width: 100%;
  height: auto;
}

/* 仅简介页隐藏音乐播放器下方的文章页脚分割线。 */
.post-content.hide-footer-line .post-footer > hr {
  display: none;
}

/* 覆盖印象笔记残留的局部 14/15/16px 行内字号，使导入正文统一为 15px。 */
.posts-expand .post-body .yinxiang-note [style*="font-size"] {
  font-size: 15px !important;
}

.posts-expand .post-title {
  font-size: 20px;
}

/* 单篇文章总标题加粗；首页预览标题保持原有字重。 */
.posts-expand:not(.index) .post-title {
  font-weight: 700;
}

/* 单篇文章二级标题与文章总标题统一为 20px；适用于既有及新增博文。 */
.posts-expand:not(.index) .post-body h2 {
  font-size: 20px;
}

/* 每周资讯正文不使用两端对齐，避免标题与长网址之间被强行拉出大段空白。 */
.posts-expand .post-body.weekly-news {
  text-align: left;
}

/* 每周资讯的“导读／推荐语”与清单圆点平齐，并统一为正文大小和中性灰色。 */
.posts-expand .post-body.weekly-news li > .post-alert-info {
  margin-left: -1em;
}

.posts-expand .post-body.weekly-news .post-alert-info {
  border-left-color: #555;
  color: #555;
  font-size: 15px;
}

.posts-expand .post-body.weekly-news .post-alert-info .post-alert-title,
.posts-expand .post-body.weekly-news .post-alert-info .post-alert-title i,
.posts-expand .post-body.weekly-news .post-alert-info .post-alert-title span {
  color: #555;
  font-size: 15px;
}

.posts-expand .post-body.weekly-news .post-alert-info .post-alert-content {
  font-size: 15px;
}

:root[data-theme="dark"] .posts-expand .post-body.weekly-news .post-alert-info,
:root[data-theme="dark"] .posts-expand .post-body.weekly-news .post-alert-info .post-alert-title,
:root[data-theme="dark"] .posts-expand .post-body.weekly-news .post-alert-info .post-alert-title i,
:root[data-theme="dark"] .posts-expand .post-body.weekly-news .post-alert-info .post-alert-title span {
  border-left-color: #aaa;
  color: #aaa;
}

/* 页码预留透明四边框，悬停时显示完整黑色方框且不发生位移。 */
.pagination .page-number {
  border: 1px solid transparent;
  border-top-color: #eee;
}

.pagination .page-number:hover {
  border-color: #000;
}

/* 桌面端紧凑列表较短时，由清单卡片填满左栏高度，避免分页前出现大块空白。 */
@media (min-width: 992px) {
  .main-inner.categories.posts-collapse,
  .main-inner.archive.posts-collapse {
    display: flex;
    flex-direction: column;
  }

  .main-inner.categories.posts-collapse > .post-block,
  .main-inner.archive.posts-collapse > .post-block {
    flex: 1 0 auto;
  }

  .main-inner.categories.posts-collapse > .pagination,
  .main-inner.archive.posts-collapse > .pagination {
    margin-top: 12px;
  }
}

/* 移动端与平板端：子菜单展开后让导航栏随内容增高，避免归档分类被固定高度裁切。 */
@media (max-width: 991px) {
  body.site-nav-on .site-nav {
    height: auto;
  }
}

@media (max-width: 767px) {
  .pagination .page-number {
    border-top-color: transparent;
    border-bottom-color: #eee;
  }

  .pagination .page-number:hover {
    border-color: #000;
  }
}

/* 文章页脚使用完整实线分隔，不显示主题默认的结束语。 */
.post-footer > hr {
  width: 100%;
  height: 0;
  margin: 24px 0 12px;
  border: 0;
  border-bottom: 1px solid #999;
}

.post-footer > hr::after {
  content: none !important;
  padding: 0;
}

:root[data-theme="dark"] .post-footer > hr {
  border-bottom-color: #666;
}

/* 分享按钮沿用 AddToAny 的服务类和点击逻辑，仅替换为站点内的单色 SVG。 */
.post-share-tools .custom-share-kit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.post-share-tools .custom-share-kit .custom-share-button {
  display: inline-flex !important;
  float: none !important;
  align-items: center;
  justify-content: center;
  box-sizing: border-box !important;
  width: 32px !important;
  height: 32px !important;
  padding: 4px !important;
  color: #555 !important;
  background: transparent !important;
  border: 0 !important;
  cursor: pointer;
  opacity: 1 !important;
}

.post-share-tools .custom-share-kit .custom-share-button::before {
  content: "";
  display: block;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  background-color: currentColor;
  -webkit-mask-image: var(--share-icon);
  mask-image: var(--share-icon);
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: 28px 28px;
  mask-size: 28px 28px;
}

/* AddToAny 加载后会注入原始彩色图标；将其隐藏，但保留事件绑定。 */
.post-share-tools .custom-share-button .a2a_svg,
.post-share-tools .custom-share-button .a2a_label {
  display: none !important;
}

.post-share-tools .custom-share-kit .custom-share-button:hover {
  color: #222 !important;
}

:root[data-theme="dark"] .post-share-tools .custom-share-kit .custom-share-button {
  color: #ccc !important;
}

:root[data-theme="dark"] .post-share-tools .custom-share-kit .custom-share-button:hover {
  color: #fff !important;
}

/* 侧栏只重设激活态；未选中的标签与非当前章节继续使用主题默认样式。 */
.sidebar-toc-active .sidebar-nav-toc,
.sidebar-overview-active .sidebar-nav-overview {
  color: #222 !important;
  border-bottom-color: #222 !important;
  font-weight: 700;
}

.sidebar-toc-active .sidebar-nav-toc:hover,
.sidebar-overview-active .sidebar-nav-overview:hover {
  color: #222 !important;
  border-bottom-color: #222 !important;
}

.post-toc .active-current,
.post-toc .nav .active > a {
  color: #222 !important;
  font-weight: 700;
}

.post-toc .active-current:hover,
.post-toc .nav .active > a:hover {
  color: #222 !important;
}

:root[data-theme="dark"] .sidebar-toc-active .sidebar-nav-toc,
:root[data-theme="dark"] .sidebar-overview-active .sidebar-nav-overview {
  color: #eee !important;
  border-bottom-color: #eee !important;
}

:root[data-theme="dark"] .sidebar-toc-active .sidebar-nav-toc:hover,
:root[data-theme="dark"] .sidebar-overview-active .sidebar-nav-overview:hover,
:root[data-theme="dark"] .post-toc .active-current,
:root[data-theme="dark"] .post-toc .active-current:hover,
:root[data-theme="dark"] .post-toc .nav .active > a,
:root[data-theme="dark"] .post-toc .nav .active > a:hover {
  color: #eee !important;
}

/* 目录标签和章节标题仅在悬停时使用黑色加粗；移开后恢复原状态。 */
.sidebar-nav li:hover,
.post-toc a:hover {
  color: #222 !important;
  font-weight: 700;
}

.sidebar-nav li:hover {
  border-bottom-color: #222 !important;
}

:root[data-theme="dark"] .sidebar-nav li:hover,
:root[data-theme="dark"] .post-toc a:hover {
  color: #eee !important;
}

:root[data-theme="dark"] .sidebar-nav li:hover {
  border-bottom-color: #eee !important;
}

/* 简介页仅显示站点概览；唯一标签无需再承担栏目切换功能。 */
.sidebar-nav.sidebar-nav-overview-only .sidebar-nav-overview {
  margin-left: 0;
  cursor: default;
  pointer-events: none;
}

/* 个人信息卡片：社交链接与友情链接共用两列网格，使两行左边缘严格对齐。 */
.sidebar-links-grid {
  display: grid;
  grid-template-columns: repeat(2, max-content);
  justify-content: center;
  column-gap: 14px;
  row-gap: 6px;
  margin-top: 5px;
}

.sidebar-links-grid-item {
  border-bottom: 0;
  text-align: left;
  white-space: nowrap;
}

.sidebar-links-grid-item .fa,
.sidebar-links-grid-item .fab,
.sidebar-links-grid-item .far,
.sidebar-links-grid-item .fas {
  margin-right: 2px;
}

.sidebar-links-grid-item:hover {
  border-bottom: 0;
}

/* 左侧折叠菜单加快展开与收起，但不改变原有折叠逻辑。 */
.menu-children,
.menu-children.expand {
  transition: max-height 0.35s ease-in-out !important;
}

/* 语言选择器与版权信息作为一个整体，在文章内容区域内水平居中。 */
.footer {
  padding: 20px 0 90px;
}

.footer-inner {
  flex-direction: row !important;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  column-gap: 16px;
  row-gap: 10px;
}

.footer-inner > .i18n-translate {
  order: 1;
}

.footer-inner > .copyright {
  order: 2;
  white-space: nowrap;
}

.footer .i18n-translate .lang-select {
  margin-left: 0;
}

/* 清除移除国旗后遗留的固定宽度与选项空位。 */
.footer .i18n-translate .lang-select .selected-option {
  box-sizing: border-box;
  width: 112px;
}

.footer .i18n-translate .lang-select .lang-options .lang-option {
  justify-content: center;
  padding: 5px 8px;
}

.footer .i18n-translate .lang-select .lang-options .lang-option .lang-name {
  margin: 0;
}

/* 使用指定图片替换文章标签前的主题书签字符。 */
.post-tags a::before {
  content: none !important;
}

.post-tags .post-tag-icon {
  display: inline-block;
  width: auto;
  height: 1.25em;
  max-width: none;
  margin: 0 0.2em 0 0;
  object-fit: contain;
  vertical-align: -0.2em;
}