/**
 * VuePress风格文档主题样式
 * 采用VuePress的简洁现代设计风格
 */

/* CSS变量定义 */
:root {
  /* 颜色系统 - 浅色模式 */
  --primary-color: rgba(62, 175, 124, 0.7);
  --primary-dark: #369970;
  --primary-light: #4fc08d;
  --text-color: #2c3e50;
  --text-light: #7f8c8d;
  --text-lighter: #95a5a6;
  --border-color: #eaecef;
  --bg-color: #ffffff;
  --bg-light: #f8f9fa;
  --bg-sidebar: #ffffff;
  --code-bg: #f6f8fa;
  --code-border: #e1e4e8;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --shadow-hover: rgba(0, 0, 0, 0.15);
  
  /* 字体系统 */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-family-code: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  
  /* 尺寸系统 */
  --header-height: 60px;
  --sidebar-width: 280px;

  --content-max-width: 1000px; /* 增加电脑端最大宽度 */
  --content-max-width-mobile: 100%; /* 手机端最大宽度 */
  --border-radius: 6px;
  --box-shadow: 0 2px 8px var(--shadow-color);
  --transition: all 0.3s ease;
}

/* 夜间模式变量 */
[data-theme="dark"] {
  /* 颜色系统 - 夜间模式 */
  --primary-color: rgba(79, 192, 141, 0.7);
  --primary-dark: #42b883;
  --primary-light: #5dd39e;
  --text-color: #e2e8f0;
  --text-light: #94a3b8;
  --text-lighter: #64748b;
  --border-color: #334155;
  --bg-color: #0f172a;
  --bg-light: #1e293b;
  --bg-sidebar: #1e293b;
  --code-bg: #1e293b;
  --code-border: #334155;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --shadow-hover: rgba(0, 0, 0, 0.4);
}

/* 基础重置 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* 防止夜间模式闪白的优化 */
html {
  font-size: 16px;
  line-height: 1.6;
  /* 确保在主题切换时有平滑过渡 */
  transition: background-color 0.2s ease, color 0.2s ease;
}

body {
  font-family: var(--font-family);
  color: var(--text-color);
  background-color: var(--bg-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* 优化主题切换过渡 */
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* 为所有可能变色的元素添加过渡效果 */
*,
*::before,
*::after {
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

/* 防止页面加载时的过渡效果 */
.no-transition,
.no-transition *,
.no-transition *::before,
.no-transition *::after {
  transition: none !important;
}

/* 主题切换时的优化 */
.theme-switching {
  pointer-events: none; /* 防止切换过程中的意外点击 */
}

/* 代码复制按钮样式 */
.code-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 12px;
  color: var(--text-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transition: all 0.2s ease;
  z-index: 10;
}

.code-copy-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.code-copy-btn.copied {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

pre:hover .code-copy-btn {
  opacity: 1;
}

.code-copy-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.theme-switching *,
.theme-switching *::before,
.theme-switching *::after {
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease !important;
}

/* 特别优化TOC和主内容区域的主题切换 */
html.theme-switching {
  transition: background-color 0.15s ease !important;
}

.theme-switching .docs-main,
.theme-switching .toc-desktop,
.theme-switching .toc-desktop-toggle {
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease !important;
}

/* 确保主题切换时所有背景区域同步更新 */
.theme-switching body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-color);
  z-index: -1;
  transition: background-color 0.15s ease;
}

/* 确保关键元素在主题切换时有正确的背景色 */
html[data-theme="dark"] {
  background-color: var(--bg-color);
  color: var(--text-color);
}

html:not([data-theme="dark"]) {
  background-color: #ffffff;
  color: #2c3e50;
}

/* 确保body和所有容器元素都有统一的背景色过渡 */
body,
.docs-container,
.docs-wrapper {
  background-color: var(--bg-color);
  transition: background-color 0.15s ease;
}

/* 防止TOC和主内容区域之间的空隙闪烁 */
.docs-main {
  background-color: var(--bg-color);
  transition: background-color 0.15s ease, margin-right 0.3s ease;
}

/* 确保TOC区域的背景色过渡 */
.toc-desktop,
.toc-desktop-toggle {
  transition: background-color 0.15s ease, transform 0.3s ease;
}

/* 防止特定元素的闪烁 */
.docs-header,
.docs-sidebar,
.docs-main,
.docs-footer {
  background-color: var(--bg-color);
}

/* 确保代码块在主题切换时不闪烁 */
pre,
code {
  background-color: var(--code-bg);
  border-color: var(--code-border);
}

/* 链接样式 */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 1rem 0;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

/* 段落和文本 */
p {
  margin: 0 0 1rem 0;
}

/* 列表样式 */
ul, ol {
  margin: 0 0 1rem 1.5rem;
}

li {
  margin: 0.25rem 0;
}

/* 代码样式 */
code {
  font-family: var(--font-family-code);
  font-size: 0.875em;
  background-color: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 3px;
  padding: 0.2em 0.4em;
}

pre {
  background-color: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--border-radius);
  padding: 1rem;
  overflow-x: auto;
  margin: 1rem 0;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
}

/* 表格样式 */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

th, td {
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  text-align: left;
}

th {
  background-color: var(--bg-light);
  font-weight: 600;
}

/* 引用样式 */
blockquote {
  border-left: 4px solid var(--primary-color);
  padding: 0.5rem 1rem;
  margin: 1rem 0;
  background-color: var(--bg-light);
  color: var(--text-light);
}

/* 顶部导航 */
.docs-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.docs-nav {
  height: 100%;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 电脑端首页logo布局调整 */
.nav-brand {
  display: flex;
  align-items: center;
  /* 默认居中对齐 */
  margin-left: 0;
}

/* 当有logo时，稍微向左偏移 */
.nav-brand.has-logo {
  margin-left: -20px;
}

.brand-link {
  display: flex;
  align-items: center;
  color: var(--text-color);
  font-weight: 600;
  font-size: 1.125rem;
}

.brand-logo {
  height: 32px;
  margin-right: 0.5rem;
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin: 0 1rem;
}

.nav-links a {
  color: var(--text-color);
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

/* 搜索框 */
.nav-search {
  position: relative;
}

.search-form {
  display: flex;
  align-items: center;
}

.search-input {
  width: 200px;
  padding: 0.5rem 2.5rem 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(62, 175, 124, 0.2);
}

.search-btn {
  position: absolute;
  right: 0.5rem;
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 0.25rem;
}

.search-icon {
  width: 16px;
  height: 16px;
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.toggle-line {
  width: 20px;
  height: 2px;
  background-color: var(--text-color);
  margin: 2px 0;
  transition: var(--transition);
}



/* 主容器布局 */
.docs-container {
  display: flex;
  /* 修复：确保内容区域从顶部开始显示 */
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

/* 侧边栏 */
.docs-sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  position: fixed;
  top: var(--header-height);
  left: 0;
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  z-index: 100;
}

.sidebar-content {
  padding: 1.5rem;
}

.sidebar-section {
  margin-bottom: 2rem;
}

.sidebar-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* 侧边栏分割线 */
.sidebar-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1.5rem 0;
}

.section-icon {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

/* 页面导航列表 */
.page-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-nav-list li {
  margin-bottom: 0.5rem;
}

.page-nav-list a {
  display: block;
  padding: 0.5rem;
  color: var(--text-color);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.page-nav-list a:hover,
.page-nav-list a.active {
  background-color: var(--bg-light);
  color: var(--primary-color);
}

/* 默认情况下隐藏移动端侧边栏内容 */
.sidebar-section:first-child,
.sidebar-divider {
  display: none;
}

/* 移动端显示侧边栏内容 */
@media (max-width: 768px) {
  .sidebar-section:first-child,
  .sidebar-divider {
    display: block;
  }
}

/* FontAwesome图标样式 - 与SVG图标保持一致 */
.sidebar-title .fa,
.sidebar-title .fas,
.sidebar-title .far,
.sidebar-title .fab {
  width: 16px;
  height: 16px;
  opacity: 0.7;
  margin-right: 0.5rem;
  display: inline-block;
  text-align: center;
}

/* 文档目录树样式 */
.docs-tree {
  font-size: 0.875rem;
}

.tree-root {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tree-node {
  margin-bottom: 0.25rem;
}

.node-content {
  display: flex;
  align-items: center;
  padding: 0.25rem 0;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.node-content:hover {
  background-color: var(--bg-light);
}

.tree-node.current-category > .node-content {
  background-color: rgba(62, 175, 124, 0.1);
}

.node-toggle {
  background: none;
  border: none;
  padding: 0.25rem;
  color: var(--text-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  border-radius: 3px;
}

.node-toggle:hover {
  background-color: var(--border-color);
  color: var(--text-color);
}

.node-spacer {
  width: 22px;
  height: 22px;
}

.toggle-icon {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.tree-node.expanded .toggle-icon {
  transform: rotate(90deg);
}

.node-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

.node-icon {
  width: 16px;
  height: 16px;
  color: var(--primary-color);
  flex-shrink: 0;
}

/* FontAwesome分类图标样式 */
.node-label .fa,
.node-label .fas,
.node-label .far,
.node-label .fab {
  width: 16px;
  height: 16px;
  color: var(--primary-color);
  flex-shrink: 0;
  display: inline-block;
  text-align: center;
}

.node-link {
  color: var(--text-color);
  font-weight: 500;
  text-decoration: none;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: var(--transition);
}

.node-link:hover {
  color: var(--primary-color);
}

.node-link.active {
  color: var(--primary-color);
  font-weight: 600;
}

.node-count {
  font-size: 0.75rem;
  background-color: var(--bg-light);
  color: var(--text-light);
  padding: 0.125rem 0.375rem;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
  flex-shrink: 0;
}

.tree-node.current-category .node-count {
  background-color: var(--primary-color);
  color: white;
}

/* 子文档列表 */
.tree-children {
  list-style: none;
  margin: 0.25rem 0 0 0;
  padding: 0;
  border-left: 1px solid var(--border-color);
  margin-left: 11px;
  overflow: hidden;
  transition: max-height 0.3s ease;
  max-height: 0;
}

.tree-node.expanded .tree-children {
  max-height: none;
}

.tree-leaf {
  margin: 0;
}

.leaf-content {
  display: flex;
  align-items: center;
  padding: 0.125rem 0;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.leaf-content:hover {
  background-color: var(--bg-light);
}

.tree-leaf.current-post > .leaf-content {
  background-color: rgba(62, 175, 124, 0.15);
}

.leaf-spacer {
  width: 22px;
  height: 22px;
}

.leaf-label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  flex: 1;
  min-width: 0;
}

.leaf-icon {
  width: 14px;
  height: 14px;
  color: var(--text-light);
  flex-shrink: 0;
}

/* FontAwesome文章图标样式 */
.leaf-label .fa,
.leaf-label .fas,
.leaf-label .far,
.leaf-label .fab {
  width: 14px;
  height: 14px;
  color: var(--text-light);
  flex-shrink: 0;
  display: inline-block;
  text-align: center;
  font-size: 14px;
}

.leaf-link {
  color: var(--text-light);
  text-decoration: none;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: var(--transition);
  font-size: 0.8125rem;
}

.leaf-link:hover {
  color: var(--primary-color);
}

.leaf-link.active {
  color: var(--primary-color);
  font-weight: 500;
}

/* 空状态 */
.tree-empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-light);
}

.empty-icon {
  width: 48px;
  height: 48px;
  opacity: 0.3;
  margin-bottom: 1rem;
}

.tree-empty p {
  margin: 0;
  font-size: 0.875rem;
}

/* 最近更新 */
.sidebar-recent {
  list-style: none;
  margin: 0;
  padding: 0;
}

.recent-item {
  margin-bottom: 0.75rem;
}

.recent-link {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.recent-link:hover {
  background-color: var(--bg-light);
}

.recent-title {
  display: block;
  font-size: 0.875rem;
  color: var(--text-color);
  margin-bottom: 0.25rem;
}

.recent-date {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* 标签云 */
.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-link {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background-color: var(--bg-light);
  color: var(--text-light);
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  transition: var(--transition);
}

.tag-link:hover {
  background-color: var(--primary-color);
  color: white;
}

/* 主内容区 */
.docs-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  max-width: var(--content-max-width);
  padding: 2rem;
  width: calc(100vw - var(--sidebar-width));
}

.docs-content {
  max-width: 100%;
  width: 100%;
}

/* 文章内容区域优化 */
.article-content,
.page-content {
  max-width: 100%;
  width: 100%;
}

/* 文章样式 */
.docs-article,
.docs-page {
  background-color: var(--bg-color);
}

.article-header,
.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.article-title,
.page-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.article-meta,
.page-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-light);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.meta-icon {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.article-category {
  color: var(--primary-color);
  font-weight: 500;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background-color: var(--bg-light);
  color: var(--text-light);
  border-radius: var(--border-radius);
  font-size: 0.75rem;
}

/* 文章内容 */
.article-content,
.page-content {
  line-height: 1.7;
  font-size: 1rem;
}

/* 文章内容元素响应式优化 */
.article-content img,
.page-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin: 1rem 0;
}

.article-content table,
.page-content table {
  width: 100%;
  overflow-x: auto;
  display: block;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .article-content table,
  .page-content table {
    display: table;
    white-space: normal;
  }
}

.article-content pre,
.page-content pre {
  overflow-x: auto;
  max-width: 100%;
  margin: 1.5rem 0;
}

.article-content pre code,
.page-content pre code {
  white-space: pre;
  word-wrap: normal;
}

/* 电脑端内容优化 */
@media (min-width: 1200px) {
  .article-content,
  .page-content {
    font-size: 1.125rem;
    line-height: 1.8;
  }
  
  .article-content h1,
  .article-content h2,
  .article-content h3,
  .page-content h1,
  .page-content h2,
  .page-content h3 {
    margin: 2.5rem 0 1.5rem 0;
  }
  
  .article-content p,
  .page-content p {
    margin-bottom: 1.25rem;
  }
}

/* 手机端内容优化 */
@media (max-width: 767px) {
  .article-content,
  .page-content {
    font-size: 1rem;
    line-height: 1.6;
  }
  
  .article-content h1,
  .article-content h2,
  .article-content h3,
  .page-content h1,
  .page-content h2,
  .page-content h3 {
    margin: 1.5rem 0 1rem 0;
  }
  
  .article-content pre,
  .page-content pre {
    margin: 1rem -0.75rem;
    border-radius: 0;
    padding: 1rem 0.75rem;
  }
  
  .article-content table,
  .page-content table {
    font-size: 0.875rem;
  }
  
  .article-content blockquote,
  .page-content blockquote {
    margin: 1rem -0.75rem;
    padding: 1rem 0.75rem;
    border-radius: 0;
  }
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6,
.page-content h1,
.page-content h2,
.page-content h3,
.page-content h4,
.page-content h5,
.page-content h6 {
  margin: 2rem 0 1rem 0;
  position: relative;
}

.article-content h1:first-child,
.page-content h1:first-child {
  margin-top: 0;
}

/* 文章导航 */
.article-footer,
.page-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  /* 防止内容溢出 */
  overflow: hidden;
  /* 确保在所有浏览器中正确渲染 */
  min-height: 0;
}

.nav-prev,
.nav-next {
  flex: 1;
  max-width: 48%;
  /* 防止flex项目收缩过度 */
  min-width: 0;
  /* 确保内容不会溢出 */
  overflow: hidden;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 1rem;
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  transition: var(--transition);
  /* 防止内容溢出 */
  overflow: hidden;
  /* 确保链接可点击 */
  position: relative;
  /* 防止变形导致的渲染问题 */
  will-change: transform;
  /* 确保最小高度 */
  min-height: 60px;
}

.nav-link:hover {
  background-color: var(--border-color);
  transform: translateY(-2px);
  /* 添加阴影增强视觉效果 */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.nav-prev .nav-link {
  justify-content: flex-start;
  /* 确保文本方向正确 */
  text-align: left;
}

.nav-next .nav-link {
  justify-content: flex-end;
  /* 确保文本方向正确 */
  text-align: right;
}

.nav-icon {
  width: 16px;
  height: 16px;
  color: var(--text-light);
  /* 防止图标变形 */
  flex-shrink: 0;
}

.nav-text {
  display: flex;
  flex-direction: column;
  margin: 0 0.5rem;
  /* 防止文本溢出 */
  overflow: hidden;
  /* 允许文本收缩 */
  flex: 1;
  min-width: 0;
}

.nav-label {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-bottom: 0.25rem;
  /* 防止标签换行 */
  white-space: nowrap;
  /* 防止溢出 */
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-title {
  font-size: 0.875rem;
  color: var(--text-color);
  font-weight: 500;
  /* 处理长标题 */
  overflow: hidden;
  text-overflow: ellipsis;
  /* 允许最多两行 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.4;
}

/* 导航占位符样式 */
.nav-placeholder {
  /* 保持布局平衡，但不显示内容 */
  visibility: hidden;
  /* 确保占用空间 */
  flex: 1;
  max-width: 48%;
  min-width: 0;
}

/* 当只有一个导航项时的特殊处理 */
.article-nav:has(.nav-placeholder) .nav-prev:not(.nav-placeholder),
.article-nav:has(.nav-placeholder) .nav-next:not(.nav-placeholder) {
  /* 单个导航项时可以占用更多空间 */
  max-width: 60%;
}

/* 为不支持:has()的浏览器提供备用方案 */
@supports not (selector(:has(*))) {
  .nav-prev:only-child,
  .nav-next:only-child {
    max-width: 60%;
  }
}

/* 编辑链接 */
.article-edit,
.page-edit {
  text-align: center;
}

.edit-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: var(--bg-light);
  color: var(--text-light);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  transition: var(--transition);
}

.edit-link:hover {
  background-color: var(--primary-color);
  color: white;
}

.edit-icon {
  width: 16px;
  height: 16px;
}



/* 页脚 */
.docs-footer {
  background-color: var(--bg-light);
  border-top: 1px solid var(--border-color);
  margin-top: 4rem;
  padding: 3rem 0 2rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.footer-section p {
  color: var(--text-light);
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer-links,
.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li,
.footer-contact li {
  margin: 0.5rem 0;
}

.footer-links a,
.footer-contact a {
  color: var(--text-light);
  font-size: 0.875rem;
  transition: var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
  color: var(--text-light);
}

.footer-copyright a,
.footer-theme a {
  color: var(--text-light);
}

.footer-copyright a:hover,
.footer-theme a:hover {
  color: var(--primary-color);
}

/* 评论区样式 */
.comments-section {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.comments-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.comments-title::before {
  content: "💬";
  font-size: 1.25rem;
}

/* 评论列表 */
.comments-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.comment-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.comment-item:hover {
  box-shadow: var(--box-shadow);
  border-color: var(--primary-color);
}

.comment-avatar {
  flex-shrink: 0;
}

.comment-avatar img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  transition: var(--transition);
}

.comment-item:hover .comment-avatar img {
  border-color: var(--primary-color);
}

.comment-content {
  flex: 1;
  min-width: 0;
}

.comment-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.comment-author {
  font-weight: 600;
  color: var(--text-color);
  font-size: 0.9rem;
}

.comment-date {
  font-size: 0.8rem;
  color: var(--text-light);
}

.comment-status {
  font-size: 0.75rem;
  background-color: #ffeaa7;
  color: #d63031;
  padding: 0.125rem 0.5rem;
  border-radius: 12px;
  font-weight: 500;
}

.comment-text {
  color: var(--text-color);
  line-height: 1.6;
  margin-bottom: 1rem;
  word-wrap: break-word;
}

.comment-text p {
  margin-bottom: 0.75rem;
}

.comment-text p:last-child {
  margin-bottom: 0;
}

.comment-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.comment-reply {
  cursor: pointer;
}

.comment-reply a {
  color: var(--text-light);
  font-size: 0.875rem;
  text-decoration: none;
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.comment-reply a::before {
  content: "↩️";
  font-size: 0.75rem;
}

.comment-reply a:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
  background-color: rgba(62, 175, 124, 0.1);
}

/* 子评论 */
.comment-children {
  list-style: none;
  margin: 1.5rem 0 0 0;
  padding: 0;
}

.comment-children .comment-item {
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  margin-bottom: 1rem;
  padding: 1rem;
}

/* 在子评论项目之间添加横向分割线 */
.comment-children .comment-item + .comment-item {
  border-top: 1px solid var(--border-color);
  margin-top: 1rem;
}

.comment-children .comment-avatar img {
  width: 32px;
  height: 32px;
}

/* 评论分页 */
.comments-nav {
  margin: 2rem 0;
  text-align: center;
}

.comments-nav span {
  display: inline-block;
  margin: 0 0.25rem;
}

.comments-nav a {
  display: inline-block;
  padding: 0.5rem 0.75rem;
  color: var(--text-light);
  text-decoration: none;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.comments-nav a:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
  background-color: rgba(62, 175, 124, 0.1);
}

.comments-nav .current a {
  color: white;
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* 评论表单 */
.comment-form-section {
  margin-top: 3rem;
  padding: 2rem;
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.comment-form-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.comment-form-title::before {
  content: "✍️";
  font-size: 1rem;
}

.comment-logged-in {
  margin-bottom: 1.5rem;
  padding: 1rem;
  background-color: rgba(62, 175, 124, 0.1);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--primary-color);
}

.comment-logged-in p {
  margin: 0;
  color: var(--text-color);
  font-size: 0.9rem;
}

.comment-logged-in a {
  color: var(--primary-color);
  font-weight: 500;
}

.comment-form-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.form-group label.required::after {
  content: " *";
  color: #e74c3c;
}

.form-control {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(62, 175, 124, 0.2);
}

.form-control::placeholder {
  color: var(--text-lighter);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
  line-height: 1.5;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(62, 175, 124, 0.3);
}

.btn-secondary {
  background-color: var(--bg-color);
  color: var(--text-light);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--border-color);
  color: var(--text-color);
}

/* 评论关闭状态 */
.comment-closed {
  text-align: center;
  padding: 2rem;
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  margin-top: 2rem;
}

.comment-closed p {
  margin: 0;
  color: var(--text-light);
  font-size: 0.9rem;
}

/* 评论回复表单样式 */
#respond {
  transition: var(--transition);
}

#respond.comment-reply-form {
  margin-top: 1rem;
  padding: 1.5rem;
  background-color: var(--bg-color);
  border: 2px solid var(--primary-color);
  border-radius: var(--border-radius);
}

/* 评论加载动画 */
.comments-loading {
  text-align: center;
  padding: 2rem;
  color: var(--text-light);
}

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 评论区响应式设计 */
@media (max-width: 768px) {
  .comments-section {
    margin-top: 2rem;
    padding-top: 1.5rem;
  }
  
  .comment-item {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
  }
  
  .comment-avatar {
    align-self: flex-start;
  }
  
  .comment-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .comment-form-fields {
    grid-template-columns: 1fr;
  }
  
  .comment-form-section {
    padding: 1.5rem;
  }
  
  .form-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn {
    justify-content: center;
  }
  
  .comment-children {
    padding-left: 0.5rem;
  }
}

@media (max-width: 480px) {
  .comment-item {
    padding: 0.75rem;
  }
  
  .comment-form-section {
    padding: 1rem;
  }
  
  .comments-title {
    font-size: 1.25rem;
  }
  
  .comment-form-title {
    font-size: 1.125rem;
  }
}

/* 响应式设计 */

/* 大屏幕 (>1400px) - 更宽的内容区域 */
@media (min-width: 1400px) {
  :root {
    --content-max-width: 1200px;
    --sidebar-width: 300px;
  }
  
  .docs-main {
    padding: 2.5rem 3rem;
  }
  
  .article-content,
  .page-content {
    font-size: 1.125rem;
    line-height: 1.8;
  }
}

/* 中等屏幕 (1200px-1400px) */
@media (min-width: 1200px) and (max-width: 1399px) {
  :root {
    --content-max-width: 1000px;
  }
  
  .docs-main {
    padding: 2rem 2.5rem;
  }
}

/* 平板横屏和小桌面 (768px-1199px) */
@media (max-width: 1199px) {
  .docs-main {
    width: calc(100vw - var(--sidebar-width));
    max-width: none;
  }
}

/* 平板竖屏 (768px-1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .docs-main {
    padding: 1.5rem 2rem;
    max-width: var(--content-max-width-mobile);
  }
  
  .article-content,
  .page-content {
    font-size: 1rem;
    line-height: 1.7;
  }
}

/* 手机端 (<=767px) */
@media (max-width: 767px) {
  .nav-menu {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .search-input {
    width: 150px;
  }
  
  /* 首页搜索框在手机端隐藏 */
  .nav-search.homepage-search {
    display: none !important;
  }
  
  .docs-sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  
  .docs-sidebar.active {
    transform: translateX(0);
  }
  
  .docs-main {
    margin-left: 0;
    margin-right: 0;
    width: 100%;
    max-width: 100%;
    padding: 1rem;
  }
  
  .docs-content {
    width: 100%;
  }
}

/* 电脑端确保首页搜索框显示 */
@media (min-width: 768px) {
  .nav-search.homepage-search {
    display: block !important;
  }
  
  .article-content,
  .page-content {
    width: 100%;
    max-width: 100%;
    font-size: 1rem;
    line-height: 1.6;
  }
  
  .article-title,
  .page-title {
    font-size: 2rem;
  }
  
  .article-nav {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .nav-prev,
  .nav-next {
    max-width: 100%;
    /* 移动端确保完整宽度 */
    width: 100%;
  }
  
  .nav-link {
    /* 移动端减少内边距 */
    padding: 0.75rem;
    /* 确保最小触摸目标 */
    min-height: 48px;
  }
  
  .nav-text {
    /* 移动端调整边距 */
    margin: 0 0.375rem;
  }
  
  .nav-title {
    /* 移动端允许更多行数 */
    -webkit-line-clamp: 3;
    font-size: 0.8125rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* 小手机 (<=480px) */
@media (max-width: 480px) {
  .nav-container {
    padding: 0 1rem;
  }
  
  .docs-main {
    padding: 0.75rem;
  }
  
  .article-content,
  .page-content {
    font-size: 0.95rem;
    line-height: 1.6;
  }
  
  .article-title,
  .page-title {
    font-size: 1.75rem;
  }
  
  .article-meta,
  .page-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* 用户体验增强功能 */


/* 用户体验工具栏 */
.ux-toolbar {
  position: fixed;
  right: 2rem;
  bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
}

.ux-tool {
  width: 48px;
  height: 48px;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
  color: var(--text-color);
}

.ux-tool:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(62, 175, 124, 0.3);
}

.ux-tool.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* 夜间模式按钮样式 */
.dark-mode-toggle .sun-icon,
.dark-mode-toggle .moon-icon {
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.dark-mode-toggle.active .sun-icon {
  opacity: 0;
  transform: rotate(180deg);
}

.dark-mode-toggle.active .moon-icon {
  opacity: 1;
  transform: rotate(0deg);
}

/* 夜间模式特殊样式优化 */
[data-theme="dark"] .search-input {
  background-color: var(--bg-light);
  color: var(--text-color);
}

[data-theme="dark"] .search-input::placeholder {
  color: var(--text-lighter);
}

[data-theme="dark"] .nav-links a:hover,
[data-theme="dark"] .nav-links a.active {
  color: var(--primary-light);
}

[data-theme="dark"] .comment-item {
  background-color: var(--bg-light);
  border-color: var(--border-color);
}

[data-theme="dark"] .form-control {
  background-color: var(--bg-light);
  color: var(--text-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .btn-primary {
  background-color: var(--primary-color);
  color: var(--bg-color);
}

[data-theme="dark"] .btn-primary:hover {
  background-color: var(--primary-light);
}

/* 返回顶部按钮 */
.back-to-top {
  opacity: 0;
  visibility: hidden;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* 字体大小调节 */
.font-size-toggle {
  /* 继承通用按钮样式，无需额外样式 */
}

/* 阅读模式样式 */
.reading-mode .docs-main {
  max-width: 700px;
  margin: 0 auto !important;
  padding: 2rem;
  width: 100%;
  margin-right: auto !important;
}

.reading-mode .docs-sidebar {
  display: none;
}

/* 阅读模式下隐藏桌面端TOC */
.reading-mode .toc-desktop {
  display: none !important;
}

.reading-mode .toc-desktop-toggle {
  display: none !important;
}

.reading-mode .article-content,
.reading-mode .page-content {
  font-size: var(--reading-font-size, 1rem);
  line-height: 1.8;
  max-width: 100%;
}

/* 电脑端阅读模式优化 */
@media (min-width: 1200px) {
  .reading-mode .docs-main {
    max-width: 800px;
    padding: 3rem;
    margin-right: auto !important;
  }
  
  .reading-mode .article-content,
  .reading-mode .page-content {
    font-size: var(--reading-font-size, 1.125rem);
    line-height: 1.9;
  }
}

/* 手机端阅读模式优化 */
@media (max-width: 767px) {
  .reading-mode .docs-main {
    max-width: 100%;
    padding: 1rem;
    margin: 0;
  }
  
  .reading-mode .article-content,
  .reading-mode .page-content {
    font-size: var(--reading-font-size, 1rem);
    line-height: 1.7;
  }
}

/* 字体大小变量 */
:root {
  --reading-font-size: 1rem;
}

.font-size-small {
  --reading-font-size: 0.875rem;
}

.font-size-medium {
  --reading-font-size: 1rem;
}

.font-size-large {
  --reading-font-size: 1.125rem;
}

.font-size-xlarge {
  --reading-font-size: 1.25rem;
}

/* PJAX加载指示器 */
.pjax-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.pjax-loader.active {
  opacity: 1;
  visibility: visible;
}

.pjax-loader-bar {
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  width: 0%;
  transition: width 0.3s ease;
  box-shadow: 0 0 10px rgba(62, 175, 124, 0.5);
}

/* 移除转圈动画，只保留进度条 */

/* PJAX页面过渡效果 */
#pjax-container {
  transition: opacity 0.2s ease;
}

.pjax-loading #pjax-container {
  opacity: 0.7;
}

/* 工具提示 */
.tooltip {
  position: relative;
}

.tooltip::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0.5rem;
  padding: 0.5rem 0.75rem;
  background-color: var(--text-color);
  color: var(--bg-color);
  font-size: 0.75rem;
  border-radius: var(--border-radius);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1001;
}

.tooltip::after {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0.25rem;
  border: 4px solid transparent;
  border-top-color: var(--text-color);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1001;
}

.tooltip:hover::before,
.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
}

/* 移动端工具栏适配 */
@media (max-width: 768px) {
  .ux-toolbar {
    right: 1rem;
    bottom: 3rem;
  }
  
  .ux-tool {
    width: 44px;
    height: 44px;
  }
  
  .font-size-panel {
    /* 在移动端保持居中显示 */
    width: 180px;
    max-width: 80vw;
  }
  
  .reading-progress {
    top: var(--header-height);
  }
}

@media (max-width: 480px) {
  .ux-toolbar {
    flex-direction: column;
    bottom: 3rem;
    right: 1rem;
  }
  
  .font-size-panel {
    bottom: 100%;
    width: 160px;
    max-width: 85vw;
    margin-bottom: 0.5rem;
    padding: 0.75rem;
  }
  
  .font-size-presets {
    gap: 0.25rem;
  }
  
  .font-size-preset {
    padding: 0.2rem 0.25rem;
    font-size: 0.7rem;
  }
}

@media (max-width: 320px) {
  .font-size-panel {
    width: 140px;
    max-width: 90vw;
    padding: 0.5rem;
  }
  
  .font-size-title {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
  }
  
  .font-size-presets {
    gap: 0.2rem;
  }
  
  .font-size-preset {
    padding: 0.15rem 0.2rem;
    font-size: 0.65rem;
  }
}