/* -------------------- 基础变量定义 -------------------- */
:root {
  /* 浅色模式默认值 */
  --bt-accent: #2d82cc;
  --bt-accent-light: #4a9fe6;
  --bt-accent-dark: #1a5a9a;
  
  /* 背景色 */
  --bt-bg-primary: #ffffff;
  --bt-bg-secondary: #f8f9fa;
  --bt-bg-tertiary: #f0f2f5;
  --bt-bg-code: #f5f7fa;
  --mark-bg: #ffd399d8;
  
  /* 文字色 */
  --bt-text-primary: #2c3e50;
  --bt-text-secondary: #5a6c7d;
  --bt-text-muted: #8b9aab;
  --bt-text-accent: var(--bt-accent);
  
  /* 边框与阴影 */
  --bt-border: rgba(0, 0, 0, 0.08);
  --bt-border-light: rgba(0, 0, 0, 0.04);
  --bt-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --bt-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --bt-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  
  /* 圆角 */
  --bt-radius-sm: 6px;
  --bt-radius-md: 12px;
  --bt-radius-lg: 20px;
  --bt-radius-xl: 28px;
  
  /* 字体 */
  --font-default: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Microsoft YaHei Light", sans-serif;
  --font-text-theme: Bookerly, 'Inter', "Segoe UI", "霞鹜文楷 GB", "LXGW WenKai", "Microsoft YaHei"; 
  --bt-font-mono: "JetBrains Mono", "Fira Code", Consolas, Monaco, monospace;
  
  /* 动画 */
  --bt-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 代码块主题 - 浅色模式 */
  --code-bg: #f8f9fa;
  --code-text: #24292e;
  --code-border: #e1e4e8;
  --code-comment: #6a737d;
  --code-keyword: #d73a49;
  --code-string: #032f62;
  --code-function: #6f42c1;
  --code-number: #005cc5;
  --code-operator: #d73a49;
}

/* -------------------- 深色模式变量覆盖 -------------------- */
@media (prefers-color-scheme: dark) {
  :root {
    /* 主题色 - 调整为更适合深色模式 */
    --bt-accent: #5ba4ff;
    --bt-accent-light: #7db9ff;
    --bt-accent-dark: #3a8bf0;
    
    /* 背景色 - 深色灰阶 */
    --bt-bg-primary: #121212;
    --bt-bg-secondary: #1e1e1e;
    --bt-bg-tertiary: #2d2d2d;
    --bt-bg-code: #252525;
    --mark-bg: #b58900cc;  /* 深色模式下改为琥珀色 */
    
    /* 文字色 - 降低对比度避免刺眼 */
    --bt-text-primary: #e0e0e0;
    --bt-text-secondary: #b0b0b0;
    --bt-text-muted: #888888;
    
    /* 边框与阴影 - 深色模式下使用更深的阴影 */
    --bt-border: rgba(255, 255, 255, 0.08);
    --bt-border-light: rgba(255, 255, 255, 0.04);
    --bt-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --bt-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --bt-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    
    /* 代码块主题 - 深色模式 */
    --code-bg: #1a1a1a;
    --code-text: #e6e6e6;
    --code-border: #333333;
    --code-comment: #888888;
    --code-keyword: #ff7b72;
    --code-string: #a5d6ff;
    --code-function: #d2a8ff;
    --code-number: #79c0ff;
    --code-operator: #ff7b72;
  }
  
  /* 覆盖博客园已有的深色模式类 */
  body.dark,
  body.night,
  html[theme="dark"] {
    /* 确保这些类也能正确应用深色变量 */
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%) !important;
  }
}

/* 手动切换支持 - 通过添加 .dark-mode 类覆盖 */
body.dark-mode {
  /* 主题色 */
  --bt-accent: #5ba4ff;
  --bt-accent-light: #7db9ff;
  --bt-accent-dark: #3a8bf0;
  
  /* 背景色 */
  --bt-bg-primary: #121212;
  --bt-bg-secondary: #1e1e1e;
  --bt-bg-tertiary: #2d2d2d;
  --bt-bg-code: #252525;
  --mark-bg: #b58900cc;
  
  /* 文字色 */
  --bt-text-primary: #e0e0e0;
  --bt-text-secondary: #b0b0b0;
  --bt-text-muted: #888888;
  
  /* 边框与阴影 */
  --bt-border: rgba(255, 255, 255, 0.08);
  --bt-border-light: rgba(255, 255, 255, 0.04);
  --bt-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --bt-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --bt-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  
  /* 代码块 */
  --code-bg: #1a1a1a;
  --code-text: #e6e6e6;
  --code-border: #333333;
  --code-comment: #888888;
  --code-keyword: #ff7b72;
  --code-string: #a5d6ff;
  --code-function: #d2a8ff;
  --code-number: #79c0ff;
  --code-operator: #ff7b72;
}

/* 针对博客园已有的深色模式类做适配 */
body.dark,
body.night,
html[theme="dark"] {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%) !important;
  color: var(--bt-text-primary);
}

body.dark #cnblogs_post_body mark,
body.night #cnblogs_post_body mark,
html[theme="dark"] #cnblogs_post_body mark,
body.dark-mode #cnblogs_post_body mark {
  background-color: var(--mark-bg) !important;
}

/* -------------------- 全局重置与基础 -------------------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

body {
  font-family: var(--font-default);
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
  background-attachment: fixed;
  color: var(--bt-text-primary);
  line-height: 1.7;
  font-size: 15px;
  min-height: 100vh;
}

/* 深色模式背景渐变 */
@media (prefers-color-scheme: dark) {
  body {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    background-attachment: fixed;
  }
}

body.dark-mode {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
  background-attachment: fixed;
}

#topics{
  font-family: var(--font-text-theme);
}

/* 链接样式 */
a {
  color: var(--bt-accent);
  text-decoration: none;
  transition: var(--bt-transition);
  position: relative;
}

a:hover {
  color: var(--bt-accent-light);
}

a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--bt-accent), var(--bt-accent-light));
  transition: width 0.3s ease;
  border-radius: 1px;
}

a:hover::after {
  width: 100%;
}

/* -------------------- 顶部导航栏 -------------------- */
#header {
  background: rgba(var(--bt-bg-primary-rgb, 255 255 255), 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--bt-border);
  box-shadow: var(--bt-shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0;
}

/* 深色模式导航栏透明度调整 */
@media (prefers-color-scheme: dark) {
  #header {
    background: rgba(30, 30, 30, 0.85);
  }
}

body.dark-mode #header {
  background: rgba(30, 30, 30, 0.85);
}

#header .header-container {
  max-width: 100%;
  margin: 0 auto;
  padding: 8px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo 区域 */
#blog_logo {
  font-size: 24px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--bt-accent), var(--bt-accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

#blogTitle h1{
    text-align: center;
}

/* 导航菜单 */
#navList {
  display: flex;
  gap: 8px;
  list-style: none;
}

#navList li a {
  padding: 8px 16px;
  border-radius: var(--bt-radius-sm);
  color: var(--bt-text-secondary);
  font-weight: 500;
  font-size: 14px;
  transition: var(--bt-transition);
}

#navList li a:hover {
  background: var(--bt-bg-tertiary);
  color: var(--bt-accent);
}

#navList li a::after {
  display: none;
}

/* -------------------- 主体布局 -------------------- */
#main {
  max-width: 100%;
  margin: 32px auto;
  padding: 0 24px;
}

#cnblogs_post_body mark{
    border-radius: 3px;
    padding: 1px 2px;
    background-color:var(--mark-bg);
} 

/* 如果博客园主题是深色模式时给 body 加类名 */
body.dark #cnblogs_post_body mark,
body.night #cnblogs_post_body mark,
html[theme="dark"] #cnblogs_post_body mark,
body.dark-mode #cnblogs_post_body mark {
    background-color: var(--mark-bg) !important;
}

/* -------------------- 侧边栏 - 玻璃拟态卡片 -------------------- */
#sideBar, .sidebar {
  position: sticky;
  top: 88px;
  height: fit-content;
}

.sidebar-block {
  background: rgba(var(--bt-bg-primary-rgb, 255 255 255), 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(var(--bt-bg-primary-rgb, 255 255 255), 0.5);
  border-radius: var(--bt-radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--bt-shadow-md);
  transition: var(--bt-transition);
}

/* 深色模式侧边栏 */
@media (prefers-color-scheme: dark) {
  .sidebar-block {
    background: rgba(30, 30, 30, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
}

body.dark-mode .sidebar-block {
  background: rgba(30, 30, 30, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-block:hover {
  box-shadow: var(--bt-shadow-lg);
  transform: translateY(-2px);
}

.sidebar-block h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--bt-text-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--bt-accent), transparent) 1;
}

/* 博主信息 */
#profile_block {
  text-align: center;
}

#profile_block a {
  display: inline-block;
  margin: 4px 0;
}

#profile_block a:first-child {
  font-size: 18px;
  font-weight: 600;
  color: var(--bt-text-primary);
  margin-bottom: 8px;
}

#profile_block a:first-child::after {
  display: none;
}

/* 侧边栏列表 */
.sidebar-block ul {
  list-style: none;
}

.sidebar-block li {
  padding: 10px 0;
  border-bottom: 1px solid var(--bt-border-light);
  transition: var(--bt-transition);
}

.sidebar-block li:last-child {
  border-bottom: none;
}

.sidebar-block li:hover {
  padding-left: 8px;
  color: var(--bt-accent);
}

.sidebar-block li a {
  color: var(--bt-text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-block li a::before {
  content: '›';
  color: var(--bt-accent);
  font-weight: bold;
  opacity: 0;
  transition: opacity 0.2s;
}

.sidebar-block li:hover a::before {
  opacity: 1;
}

/* -------------------- 文章列表区域 -------------------- */
#post_list, .post-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* 文章卡片 */
.post-item, .day, .post {
  background: rgba(var(--bt-bg-primary-rgb, 255 255 255), 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(var(--bt-bg-primary-rgb, 255 255 255), 0.6);
  border-radius: var(--bt-radius-lg);
  padding: 32px;
  box-shadow: var(--bt-shadow-md);
  transition: var(--bt-transition);
  position: relative;
  overflow: hidden;
}

/* 深色模式文章卡片 */
@media (prefers-color-scheme: dark) {
  .post-item, .day, .post {
    background: rgba(40, 40, 40, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
}

body.dark-mode .post-item,
body.dark-mode .day,
body.dark-mode .post {
  background: rgba(40, 40, 40, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.post-item::before, .day::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--bt-accent), var(--bt-accent-light), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.post-item:hover, .day:hover {
  box-shadow: var(--bt-shadow-lg);
  transform: translateY(-4px);
}

.post-item:hover::before, .day:hover::before {
  opacity: 1;
}

/* 文章标题 */
.post-title, .postTitle, .entrylistTitle {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
  color: var(--bt-text-primary);
}

.post-title a, .postTitle a {
  color: inherit;
  background: linear-gradient(135deg, var(--bt-text-primary), var(--bt-accent-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.post-title a::after {
  display: none;
}

.post-title a:hover {
  opacity: 0.8;
}

/* 文章摘要 */
.post-con, .c_b_p_desc {
  color: var(--bt-text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 20px;
}

/* 文章元信息 */
.post-meta, .postDesc {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--bt-text-muted);
  flex-wrap: wrap;
}

.post-meta span, .postDesc span,
.post-meta a, .postDesc a {
  display: flex;
  align-items: center;
  gap: 6px;
}

.post-meta a {
  color: var(--bt-accent);
  background: var(--bt-bg-tertiary);
  padding: 4px 12px;
  border-radius: var(--bt-radius-xl);
  font-size: 12px;
  transition: var(--bt-transition);
}

.post-meta a:hover {
  background: var(--bt-accent);
  color: white;
}

.post-meta a::after {
  display: none;
}

/* 阅读更多按钮 */
.c_b_p_desc_readmore {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--bt-accent), var(--bt-accent-light));
  color: white !important;
  border-radius: var(--bt-radius-xl);
  font-weight: 500;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(var(--bt-accent-rgb, 45 130 204), 0.3);
  transition: var(--bt-transition);
}

.c_b_p_desc_readmore:hover {
  transform: translateX(4px);
  box-shadow: 0 6px 20px rgba(var(--bt-accent-rgb, 45 130 204), 0.4);
}

.c_b_p_desc_readmore::after {
  display: none;
}

/* -------------------- 文章详情页 -------------------- */
#post_detail, .post-body {
  background: rgba(var(--bt-bg-primary-rgb, 255 255 255), 0.85);
  backdrop-filter: blur(16px);
  border-radius: var(--bt-radius-lg);
  padding: 48px;
  box-shadow: var(--bt-shadow-md);
}

/* 深色模式文章详情页 */
@media (prefers-color-scheme: dark) {
  #post_detail, .post-body {
    background: rgba(40, 40, 40, 0.85);
  }
}

body.dark-mode #post_detail,
body.dark-mode .post-body {
  background: rgba(40, 40, 40, 0.85);
}

/* 文章正文排版 */
.post-body, #cnblogs_post_body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--bt-text-primary);
}

.post-body h1, .post-body h2, .post-body h3,
.post-body h4, .post-body h5, .post-body h6,
#cnblogs_post_body h1, #cnblogs_post_body h2, #cnblogs_post_body h3,
#cnblogs_post_body h4, #cnblogs_post_body h5, #cnblogs_post_body h6 {
  font-weight: 700;
  line-height: 1.4;
  margin: 48px 0 24px;
  color: var(--bt-text-primary);
  position: relative;
}

.post-body h1, #cnblogs_post_body h1 {
  font-size: 32px;
  padding-bottom: 16px;
  border-bottom: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--bt-accent), var(--bt-accent-light), transparent) 1;
}

.post-body h2, #cnblogs_post_body h2 {
  font-size: 26px;
  padding-left: 16px;
  border-left: 4px solid var(--bt-accent);
}

.post-body h3, #cnblogs_post_body h3 {
  font-size: 22px;
  color: var(--bt-accent-dark);
}

.post-body p, #cnblogs_post_body p {
  margin-bottom: 20px;
  text-align: justify;
}

/* 引用块 */
.post-body blockquote, #cnblogs_post_body blockquote {
  background: linear-gradient(135deg, var(--bt-bg-tertiary), rgba(var(--bt-accent-rgb, 45 130 204), 0.05));
  border-left: 4px solid var(--bt-accent);
  padding: 24px 28px;
  margin: 28px 0;
  border-radius: 0 var(--bt-radius-md) var(--bt-radius-md) 0;
  color: var(--bt-text-secondary);
  position: relative;
}

.post-body blockquote::before,
#cnblogs_post_body blockquote::before {
  content: '"';
  position: absolute;
  top: 8px;
  left: 16px;
  font-size: 48px;
  color: var(--bt-accent);
  opacity: 0.2;
  font-family: Georgia, serif;
  line-height: 1;
}

/* 代码块 - 深色模式适配 */
.post-body pre, #cnblogs_post_body pre,
.post-body code, #cnblogs_post_body code {
  font-family: var(--bt-font-mono);
  font-size: 14px;
}

.post-body pre, #cnblogs_post_body pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 24px;
  border-radius: var(--bt-radius-md);
  overflow-x: auto;
  margin: 24px 0;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
  position: relative;
  border: 1px solid var(--code-border);
}

.post-body pre::before,
#cnblogs_post_body pre::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 16px;
  width: 12px;
  height: 12px;
  background: #ff5f56;
  border-radius: 50%;
  box-shadow: 20px 0 #ffbd2e, 40px 0 #27c93f;
}

.post-body pre code,
#cnblogs_post_body pre code {
  background: none;
  padding: 0;
  color: inherit;
  display: block;
  line-height: 1.7;
  padding-top: 16px;
}

.post-body code, #cnblogs_post_body code {
  background: var(--bt-bg-code);
  color: var(--bt-accent-dark);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.9em;
  border: 1px solid var(--bt-border);
}

/* 表格样式 */
.post-body table, #cnblogs_post_body table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 24px 0;
  border-radius: var(--bt-radius-md);
  overflow: hidden;
  box-shadow: var(--bt-shadow-sm);
  border: 1px solid var(--bt-border);
}

.post-body th, #cnblogs_post_body th {
  background: linear-gradient(135deg, var(--bt-accent), var(--bt-accent-dark));
  color: white;
  padding: 16px;
  text-align: left;
  font-weight: 600;
}

.post-body td, #cnblogs_post_body td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--bt-border-light);
  background: var(--bt-bg-primary);
}

.post-body tr:hover td,
#cnblogs_post_body tr:hover td {
  background: var(--bt-bg-secondary);
}

.post-body tr:last-child td,
#cnblogs_post_body tr:last-child td {
  border-bottom: none;
}

/* 列表样式 */
.post-body ul, #cnblogs_post_body ul,
.post-body ol, #cnblogs_post_body ol {
  margin: 20px 0;
  padding-left: 28px;
}

.post-body li, #cnblogs_post_body li {
  margin: -5px 0;
  position: relative;
}

.post-body ul li::marker,
#cnblogs_post_body ul li::marker {
  color: var(--bt-accent);
  font-size: 1.2em;
}

/* 图片样式 */
.post-body img, #cnblogs_post_body img {
  max-width: 100%;
  border-radius: var(--bt-radius-md);
  box-shadow: var(--bt-shadow-md);
  margin: 24px 0;
  transition: var(--bt-transition);
  filter: brightness(0.95);
}

/* 深色模式图片亮度调整 */
@media (prefers-color-scheme: dark) {
  .post-body img, #cnblogs_post_body img {
    filter: brightness(0.85);
  }
}

body.dark-mode .post-body img,
body.dark-mode #cnblogs_post_body img {
  filter: brightness(0.85);
}

.post-body img:hover,
#cnblogs_post_body img:hover {
  transform: scale(1.02);
  box-shadow: var(--bt-shadow-lg);
}

/* 分割线 */
.post-body hr, #cnblogs_post_body hr {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--bt-border), transparent);
  margin: 48px 0;
  position: relative;
}

.post-body hr::after,
#cnblogs_post_body hr::after {
  content: '§';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--bt-bg-primary);
  color: var(--bt-accent);
  padding: 0 16px;
  font-size: 20px;
}

/* -------------------- 右侧边栏 -------------------- */
#right_sidebar, .right-sidebar {
  position: sticky;
  top: 88px;
}

/* 搜索框 */
#widget_my_zzk, .sidebar-search {
  margin-bottom: 24px;
}

#widget_my_zzk input, .sidebar-search input {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--bt-border);
  border-radius: var(--bt-radius-xl);
  background: rgba(var(--bt-bg-primary-rgb, 255 255 255), 0.8);
  font-size: 14px;
  transition: var(--bt-transition);
  outline: none;
  color: var(--bt-text-primary);
}

#widget_my_zzk input:focus,
.sidebar-search input:focus {
  border-color: var(--bt-accent);
  box-shadow: 0 0 0 4px rgba(var(--bt-accent-rgb, 45 130 204), 0.1);
}

/* 深色模式输入框 */
@media (prefers-color-scheme: dark) {
  #widget_my_zzk input, .sidebar-search input {
    background: rgba(30, 30, 30, 0.8);
    border: 2px solid rgba(255, 255, 255, 0.1);
  }
}

body.dark-mode #widget_my_zzk input,
body.dark-mode .sidebar-search input {
  background: rgba(30, 30, 30, 0.8);
  border: 2px solid rgba(255, 255, 255, 0.1);
}

/* 标签云 */
#taglist, .tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

#taglist a, .tag-cloud a {
  padding: 6px 14px;
  background: var(--bt-bg-tertiary);
  border-radius: var(--bt-radius-xl);
  font-size: 13px;
  color: var(--bt-text-secondary);
  transition: var(--bt-transition);
}

#taglist a:hover,
.tag-cloud a:hover {
  background: var(--bt-accent);
  color: white;
  transform: translateY(-2px);
}

#taglist a::after,
.tag-cloud a::after {
  display: none;
}

/* -------------------- 分页 -------------------- */
#pager, .pager {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 48px 0;
  padding: 24px;
}

#pager a, .pager a,
#pager span, .pager span {
  min-width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--bt-radius-md);
  font-size: 14px;
  font-weight: 500;
  transition: var(--bt-transition);
}

#pager a, .pager a {
  background: var(--bt-bg-primary);
  color: var(--bt-text-secondary);
  box-shadow: var(--bt-shadow-sm);
  border: 1px solid var(--bt-border);
}

#pager a:hover, .pager a:hover {
  background: var(--bt-accent);
  color: white;
  border-color: var(--bt-accent);
  transform: translateY(-2px);
  box-shadow: var(--bt-shadow-md);
}

#pager a::after, .pager a::after {
  display: none;
}

#pager .current, .pager .current {
  background: linear-gradient(135deg, var(--bt-accent), var(--bt-accent-light));
  color: white;
  box-shadow: var(--bt-shadow-md);
}

/* -------------------- 页脚 -------------------- */
#footer, .footer {
  background: rgba(var(--bt-bg-primary-rgb, 255 255 255), 0.8);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--bt-border);
  padding: 48px 24px;
  margin-top: 64px;
  text-align: center;
  color: var(--bt-text-muted);
  font-size: 14px;
}

/* 深色模式页脚 */
@media (prefers-color-scheme: dark) {
  #footer, .footer {
    background: rgba(30, 30, 30, 0.8);
  }
}

body.dark-mode #footer,
body.dark-mode .footer {
  background: rgba(30, 30, 30, 0.8);
}

#footer a, .footer a {
  color: var(--bt-accent);
  margin: 0 8px;
}

/* -------------------- 滚动条美化 -------------------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--bt-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--bt-accent);
}

/* -------------------- 响应式设计 -------------------- */
@media (max-width: 1200px) {
  #main {
    grid-template-columns: 240px 1fr;
  }
  #right_sidebar, .right-sidebar {
    display: none;
  }
}

@media (max-width: 768px) {
  #main {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }
  #sideBar, .sidebar {
    position: relative;
    top: 0;
    order: 2;
  }
  .post-item, .day, .post,
  #post_detail, .post-body {
    padding: 24px;
  }
  .post-title, .postTitle {
    font-size: 20px;
  }
}

/* -------------------- 动画效果 -------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-item, .day {
  animation: fadeInUp 0.6s ease-out;
}

/* 选中文字样式 */
::selection {
  background: rgba(var(--bt-accent-rgb, 45 130 204), 0.2);
  color: var(--bt-accent-dark);
}

/* 专注模式 - 可选 */
.focus-mode .post-item,
.focus-mode .sidebar-block {
  opacity: 0.3;
  filter: blur(2px);
  transition: var(--bt-transition);
}

.focus-mode .post-item:hover,
.focus-mode .sidebar-block:hover {
  opacity: 1;
  filter: none;
}

/* 深色模式开关按钮样式（可选） */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bt-bg-primary);
  border: 1px solid var(--bt-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--bt-shadow-md);
  transition: var(--bt-transition);
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--bt-shadow-lg);
}

.theme-toggle svg {
  width: 24px;
  height: 24px;
  fill: var(--bt-text-secondary);
}

/* 打印样式 - 确保打印时颜色正常 */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  
  .post-item, .day, .post,
  #post_detail, .post-body,
  .sidebar-block {
    background: white !important;
    box-shadow: none !important;
    border: 1px solid #ddd !important;
  }
  
  a {
    color: #0066cc !important;
  }
}


/* ==================== 美观的代码块容器样式 ==================== */

.bt-code-container {
  position: relative;
  margin: 32px 0;
  background: var(--bt-bg-primary);
  border-radius: var(--bt-radius-lg);
  border: 1px solid var(--bt-border);
  box-shadow: var(--bt-shadow-md);
  transition: var(--bt-transition);
  overflow: hidden;
}

.bt-code-container:hover {
  border-color: var(--bt-accent-light);
  box-shadow: var(--bt-shadow-lg);
  transform: translateY(-2px);
}

.bt-code-container pre {
  margin: 0 !important;
  padding: 52px 32px 32px 32px !important;
  background: transparent !important;
  border-radius: 0 !important;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.6;
}

/* 保留原有的圆点样式，调整位置 */
.bt-code-container pre::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  width: 10px;
  height: 10px;
  background: #ff5f56;
  border-radius: 50%;
  box-shadow: 18px 0 #ffbd2e, 36px 0 #27c93f;
  z-index: 2;
}

/* ==================== 复制按钮样式 ==================== */

.bt-copy-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 30;
  padding: 8px 16px;
  background: linear-gradient(135deg, 
    var(--bt-bg-secondary) 0%, 
    var(--bt-bg-tertiary) 100%);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-xl);
  color: var(--bt-text-secondary);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--bt-font-mono);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--bt-shadow-sm);
  opacity: 0.9;
}

.bt-copy-btn:hover {
  background: linear-gradient(135deg, 
    var(--bt-accent-light) 0%, 
    var(--bt-accent) 100%);
  color: white;
  border-color: var(--bt-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(var(--bt-accent-rgb, 45 130 204), 0.3);
  opacity: 1;
}

.bt-copy-btn:active {
  transform: translateY(0);
  transition-duration: 0.1s;
}

.bt-copy-icon {
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}

.bt-copy-btn:hover .bt-copy-icon {
  transform: scale(1.1);
}

/* 按钮状态样式 */
.bt-copy-btn[data-state="success"] {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  border-color: #10b981;
  animation: pulse 0.5s ease;
}

.bt-copy-btn[data-state="error"] {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
  border-color: #ef4444;
  animation: shake 0.5s ease;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-2px); }
  40%, 80% { transform: translateX(2px); }
}

/* ==================== 语言标签样式 ==================== */

.bt-lang-badge {
  position: absolute;
  top: 10px;
  left: 75px; /* 放在圆点之后 */
  z-index: 30;
  padding: 6px 14px;
  background: linear-gradient(135deg, 
    var(--bt-bg-tertiary) 0%, 
    var(--bt-bg-secondary) 100%);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-lg);
  color: var(--bt-text-secondary);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--bt-font-mono);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--bt-shadow-sm);
  opacity: 0.9;
  user-select: none;
}

.bt-lang-badge:hover {
  background: linear-gradient(135deg, 
    var(--bt-accent-light) 15%, 
    var(--bt-accent) 100%);
  color: white;
  border-color: var(--bt-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--bt-accent-rgb, 45 130 204), 0.25);
  opacity: 1;
}

.bt-lang-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  transition: all 0.3s ease;
}

.bt-lang-badge:hover .bt-lang-icon {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(5deg) scale(1.1);
}

.bt-lang-name {
  letter-spacing: 0.3px;
  white-space: nowrap;
}

/* ==================== 深色模式适配 ==================== */

@media (prefers-color-scheme: dark) {
  .bt-code-container {
    background: var(--bt-bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
  }
  
  .bt-copy-btn,
  .bt-lang-badge {
    background: linear-gradient(135deg, 
      rgba(255, 255, 255, 0.08) 0%, 
      rgba(255, 255, 255, 0.05) 100%);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--bt-text-muted);
  }
  
  .bt-copy-btn:hover,
  .bt-lang-badge:hover {
    background: linear-gradient(135deg, 
      var(--bt-accent) 0%, 
      var(--bt-accent-dark) 100%);
    color: white;
    border-color: var(--bt-accent-light);
  }
  
  .bt-lang-icon {
    background: rgba(255, 255, 255, 0.15);
  }
}

body.dark-mode .bt-code-container {
  background: var(--bt-bg-secondary);
  border-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .bt-copy-btn,
body.dark-mode .bt-lang-badge {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.08) 0%, 
    rgba(255, 255, 255, 0.05) 100%);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--bt-text-muted);
}

body.dark-mode .bt-copy-btn:hover,
body.dark-mode .bt-lang-badge:hover {
  background: linear-gradient(135deg, 
    var(--bt-accent) 0%, 
    var(--bt-accent-dark) 100%);
  color: white;
  border-color: var(--bt-accent-light);
}

/* ==================== 响应式设计 ==================== */

@media (max-width: 768px) {
  .bt-code-container pre {
    padding: 48px 20px 24px 20px !important;
    font-size: 13px;
  }
  
  .bt-code-container pre::before {
    top: 18px;
    left: 16px;
    width: 8px;
    height: 8px;
    box-shadow: 16px 0 #ffbd2e, 32px 0 #27c93f;
  }
  
  .bt-copy-btn {
    top: 14px;
    right: 14px;
    padding: 6px 12px;
    font-size: 12px;
    gap: 6px;
  }
  
  .bt-lang-badge {
    top: 14px;
    left: 52px;
    padding: 5px 10px;
    font-size: 11px;
    gap: 6px;
  }
  
  .bt-lang-icon {
    width: 18px;
    height: 18px;
    font-size: 10px;
  }
}

/* 小屏幕适配 */
@media (max-width: 480px) {
  .bt-copy-btn .bt-copy-text,
  .bt-lang-badge .bt-lang-name {
    display: none;
  }
  
  .bt-copy-btn {
    padding: 8px;
  }
  
  .bt-lang-badge {
    padding: 8px;
  }
  
  .bt-copy-btn .bt-copy-icon,
  .bt-lang-badge .bt-lang-icon {
    margin: 0;
  }
}

/* ==================== 打印样式 ==================== */

@media print {
  .bt-copy-btn,
  .bt-lang-badge {
    display: none !important;
  }
  
  .bt-code-container {
    border: 1px solid #ddd !important;
    box-shadow: none !important;
    background: white !important;
  }
  
  .bt-code-container pre {
    padding: 20px !important;
  }
}

/* ==================== 代码折叠功能样式 ==================== */

/* 折叠控制栏 */
.bt-fold-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 25;
  padding: 14px 32px;
  background: linear-gradient(
    to top,
    var(--bt-bg-primary) 85%,
    transparent
  );
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--bt-border-light);
  opacity: 0.95;
  transition: all 0.3s ease;
}

.bt-code-container:hover .bt-fold-controls {
  opacity: 1;
  background: linear-gradient(
    to top,
    var(--bt-bg-primary) 90%,
    transparent
  );
}

/* 折叠状态指示器 */
.bt-fold-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bt-bg-tertiary);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-md);
  color: var(--bt-text-muted);
  font-size: 12px;
  font-family: var(--bt-font-mono);
  font-weight: 500;
  transition: var(--bt-transition);
}

.bt-fold-indicator:hover {
  background: var(--bt-bg-secondary);
  color: var(--bt-text-secondary);
  border-color: var(--bt-accent-light);
  transform: translateY(-1px);
}

.bt-fold-indicator svg {
  opacity: 0.7;
}

/* 折叠按钮 */
.bt-fold-btn {
  padding: 8px 20px;
  background: linear-gradient(
    135deg,
    var(--bt-bg-secondary) 0%,
    var(--bt-bg-tertiary) 100%
  );
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-xl);
  color: var(--bt-text-secondary);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--bt-font-mono);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--bt-shadow-sm);
}

.bt-fold-btn:hover {
  background: linear-gradient(
    135deg,
    var(--bt-accent-light) 0%,
    var(--bt-accent) 100%
  );
  color: white;
  border-color: var(--bt-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--bt-accent-rgb, 45 130 204), 0.4);
}

.bt-fold-btn:active {
  transform: translateY(-1px);
  transition-duration: 0.1s;
}

.bt-fold-btn.expanded .bt-fold-icon svg {
  transform: rotate(180deg);
}

.bt-fold-icon {
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}

.bt-fold-btn:hover .bt-fold-icon {
  transform: translateY(1px);
}

/* 可折叠代码块的特殊样式 */
.bt-code-container.bt-foldable pre {
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 折叠状态 */
.bt-code-container.bt-foldable.collapsed pre {
  max-height: 380px;
  overflow: hidden;
}

.bt-code-container.bt-foldable.collapsed::after {
  content: '';
  position: absolute;
  bottom: 60px;
  left: 0;
  right: 0;
  height: 40px;
  pointer-events: none;
}

/* 展开状态 */
.bt-code-container.bt-foldable.expanded pre {
  max-height: none !important;
  overflow: visible;
}

/* 确保折叠控制栏不影响其他元素 */
.bt-code-container.bt-foldable .bt-copy-btn,
.bt-code-container.bt-foldable .bt-lang-badge {
  z-index: 30;
}

/* 调整圆点位置以适应折叠 */
.bt-code-container.bt-foldable pre::before {
  top: 18px;
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
  .bt-fold-controls {
    background: linear-gradient(
      to top,
      var(--bt-bg-secondary) 85%,
      transparent
    );
    border-top-color: rgba(255, 255, 255, 0.1);
  }
  
  .bt-code-container:hover .bt-fold-controls {
    background: linear-gradient(
      to top,
      var(--bt-bg-secondary) 90%,
      transparent
    );
  }
  
  .bt-fold-indicator {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--bt-text-muted);
  }
  
  .bt-fold-indicator:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--bt-text-secondary);
    border-color: var(--bt-accent-light);
  }
  
  .bt-fold-btn {
    background: linear-gradient(
      135deg,
      rgba(255, 255, 255, 0.08) 0%,
      rgba(255, 255, 255, 0.05) 100%
    );
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--bt-text-muted);
  }
  
  .bt-fold-btn:hover {
    background: linear-gradient(
      135deg,
      var(--bt-accent) 0%,
      var(--bt-accent-dark) 100%
    );
    color: white;
    border-color: var(--bt-accent-light);
  }
}

body.dark-mode .bt-fold-controls {
  background: linear-gradient(
    to top,
    var(--bt-bg-secondary) 85%,
    transparent
  );
  border-top-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .bt-fold-indicator {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--bt-text-muted);
}

body.dark-mode .bt-fold-btn {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.08) 0%,
    rgba(255, 255, 255, 0.05) 100%
  );
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--bt-text-muted);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .bt-fold-controls {
    padding: 12px 20px;
  }
  
  .bt-fold-indicator {
    padding: 5px 10px;
    font-size: 11px;
    gap: 6px;
  }
  
  .bt-fold-indicator svg {
    width: 12px;
    height: 12px;
  }
  
  .bt-fold-btn {
    padding: 6px 16px;
    font-size: 12px;
    gap: 8px;
  }
  
  .bt-fold-btn .bt-fold-icon svg {
    width: 14px;
    height: 14px;
  }
  
  .bt-code-container.bt-foldable.collapsed pre {
    max-height: 320px;
  }
}

@media (max-width: 480px) {
  .bt-fold-controls {
    padding: 10px 16px;
    flex-direction: column;
    gap: 10px;
    align-items: stretch;
  }
  
  .bt-fold-indicator,
  .bt-fold-btn {
    width: 100%;
    justify-content: center;
  }
  
  .bt-fold-btn .bt-fold-text {
    flex-grow: 1;
    text-align: center;
  }
}

/* 打印样式 */
@media print {
  .bt-fold-controls {
    display: none !important;
  }
  
  .bt-code-container.bt-foldable.collapsed pre {
    max-height: none !important;
    overflow: visible !important;
  }
}