/* Newspaper Theme - Main Stylesheet */

/* ===== Variables ===== */
:root {
  --primary-color: #1a1a1a;
  --secondary-color: #666666;
  --accent-color: #ff6b6b;
  --background-color: #ffffff;
  --text-color: #333333;
  --overlay-color: rgba(0, 0, 0, 0.7);
  --border-color: #e5e5e5;
  --max-width: 1400px;
  --sidebar-width: 300px;
  --content-padding: 2rem;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'Playfair Display', Georgia, serif;
  --font-monospace: 'Fira Code', Monaco, Consolas, monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===== Reset & Base Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  overflow-x: hidden;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
  margin-bottom: var(--spacing-md);
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: transform var(--transition-normal);
}

.header.nav-up {
  transform: translateY(-100%);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem var(--content-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.nav-menu {
  margin-left: auto;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-secondary);
  display: block;
  text-decoration: none;
  color: var(--text-color);
}

.nav-logo img {
  height: 40px;
  width: auto;
  display: none;
}



.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-item {
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width var(--transition-normal);
}

.nav-item:hover,
.nav-item.active {
  color: var(--accent-color);
}

.nav-item.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  transition: all var(--transition-normal);
}

/* ===== Hero Section ===== */
.hero-section {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -2;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--overlay-color);
  z-index: -1;
}

.hero-content {
  text-align: center;
  color: white;
  z-index: 1;
}

.hero-typing {
  font-size: 3rem;
  font-weight: 700;
  font-family: var(--font-secondary);
  margin-bottom: var(--spacing-2xl);
  min-height: 4rem;
}

#typing-text {
  display: inline-block;
}

.hero-scroll {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: white;
  cursor: pointer;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

.scroll-mouse {
  width: 30px;
  height: 50px;
  border: 2px solid white;
  border-radius: 15px;
  position: relative;
  margin: 0 auto var(--spacing-sm);
}

.scroll-wheel {
  width: 6px;
  height: 6px;
  background: white;
  border-radius: 50%;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll 2s infinite;
}

@keyframes scroll {
  0% {
    top: 8px;
    opacity: 1;
  }
  100% {
    top: 30px;
    opacity: 0;
  }
}

.scroll-text {
  font-size: 0.875rem;
  opacity: 0.8;
}

/* ===== Articles Section ===== */
.articles-section {
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-3xl);
  padding-left: var(--content-padding);
  padding-right: var(--content-padding);
  max-width: var(--max-width);
  margin: 0 auto;
}

.articles-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.articles-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  font-family: var(--font-secondary);
}

.articles-filter {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: white;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

/* Articles Grid - 使用更严格的网格布局 */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr); /* 使用5列固定布局，增加列数使卡片变小 */
  grid-auto-flow: dense; /* 密集排列，填充空白空间 */
  gap: var(--spacing-md); /* 减小卡片间距 */
  margin-bottom: var(--spacing-2xl);
}

/* 响应式调整 */
@media (max-width: 1200px) {
  .articles-grid {
    grid-template-columns: repeat(4, 1fr); /* 中等屏幕使用4列 */
  }
}

@media (max-width: 768px) {
  .articles-grid {
    grid-template-columns: repeat(3, 1fr); /* 小屏幕使用3列 */
  }
}

@media (max-width: 480px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr); /* 超小屏幕使用2列 */
  }
}

/* 大卡片样式 - 当配置为large时使用 */
.articles-grid.card-size-large {
  grid-template-columns: repeat(4, 1fr); /* 使用4列固定布局 */
  gap: var(--spacing-xl); /* 增大卡片间距 */
}

.articles-grid.card-size-large .article-content {
  padding: var(--spacing-lg); /* 增大内边距 */
}

.articles-grid.card-size-large .article-card--large .article-content {
  padding: var(--spacing-xl); /* 增大内边距 */
}

.articles-grid.card-size-large .article-card--tall .article-content {
  padding: calc(var(--spacing-lg) * 1.2); /* 增大内边距 */
}

.articles-grid.card-size-large .article-card--wide .article-content {
  padding: calc(var(--spacing-lg) * 1.1); /* 增大内边距 */
}

.articles-grid.card-size-large .article-title {
  font-size: 1.25rem; /* 增大标题字体大小 */
  margin-bottom: var(--spacing-sm); /* 增大下边距 */
}

.articles-grid.card-size-large .article-card--large .article-title {
  font-size: 1.85rem; /* 增大标题字体大小 */
}

.articles-grid.card-size-large .article-card--wide .article-title {
  font-size: 1.6rem; /* 增大标题字体大小 */
}

/* 大卡片响应式调整 */
@media (max-width: 1200px) {
  .articles-grid.card-size-large {
    grid-template-columns: repeat(3, 1fr); /* 中等屏幕使用3列 */
  }
}

@media (max-width: 768px) {
  .articles-grid.card-size-large {
    grid-template-columns: repeat(2, 1fr); /* 小屏幕使用2列 */
  }
}

@media (max-width: 480px) {
  .articles-grid.card-size-large {
    grid-template-columns: 1fr; /* 超小屏幕使用1列 */
  }
}

/* Article Cards - Magazine Style */
.article-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 不同卡片尺寸的网格布局 */
.article-card--large {
  grid-column: span 2;
  grid-row: span 2;
}

.article-card--wide {
  grid-column: span 2;
  grid-row: span 1;
}

.article-card--tall {
  grid-column: span 1;
  grid-row: span 2;
}

.article-card--medium {
  grid-column: span 1;
  grid-row: span 1;
}

.article-card--small {
  grid-column: span 1;
  grid-row: span 1;
}

/* 文章图片样式 - 调整为7:3的图片/标题区域占比 */
.article-image {
  position: relative;
  overflow: hidden;
  flex: 7; /* 使用flex比例来控制图片区域占比 */
}

/* 大卡片的图片样式 - 保持7:3的占比 */
.article-card--large .article-image {
  flex: 7; /* 使用flex比例来控制图片区域占比 */
}

.article-card--tall .article-image {
  flex: 7; /* 使用flex比例来控制图片区域占比 */
}

.article-card--wide .article-image {
  flex: 7; /* 使用flex比例来控制图片区域占比 */
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.article-card:hover .article-image img {
  transform: scale(1.05);
}

/* 文章内容样式 - 调整为3的flex比例 */
.article-content {
  padding: var(--spacing-md); /* 减小内边距 */
  flex: 3; /* 使用flex比例来控制内容区域占比 */
  display: flex;
  flex-direction: column;
}

/* 大卡片的内容样式 - 调整内边距和flex比例 */
.article-card--large .article-content {
  padding: var(--spacing-lg); /* 减小内边距 */
  flex: 3; /* 使用flex比例来控制内容区域占比 */
  display: flex;
  flex-direction: column;
}

.article-card--tall .article-content {
  padding: var(--spacing-md); /* 减小内边距 */
  flex: 3; /* 使用flex比例来控制内容区域占比 */
  display: flex;
  flex-direction: column;
}

.article-card--wide .article-content {
  padding: var(--spacing-md); /* 减小内边距 */
  flex: 3; /* 使用flex比例来控制内容区域占比 */
  display: flex;
  flex-direction: column;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--secondary-color);
}

.article-category {
  color: var(--accent-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.article-date {
  opacity: 0.8;
}

.article-title {
  font-size: 1rem; /* 减小标题字体大小 */
  margin-bottom: var(--spacing-xs); /* 减小下边距 */
  line-height: 1.3;
}

.article-card--large .article-title {
  font-size: 1.5rem; /* 减小标题字体大小 */
}

.article-card--wide .article-title {
  font-size: 1.3rem; /* 减小标题字体大小 */
}

.article-excerpt {
  color: var(--secondary-color);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.read-more {
  color: var(--accent-color);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-tags {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

/* ===== Footer Badges ===== */
.footer-badges {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.footer-badges a {
  display: inline-block;
  line-height: 1;
}

.footer-badges img {
  height: 20px;
  display: block;
}

/* ===== Load More Button ===== */
.load-more-container {
  text-align: center;
  margin-top: 0;
  margin-bottom: var(--spacing-xl);
  padding-top: var(--spacing-md);
}

.load-more-btn {
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--primary-color);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.load-more-btn:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

/* ===== Post Detail Page ===== */
.post-container {
  max-width: 800px;
  margin: 0 auto;
  padding: calc(var(--spacing-3xl) + var(--spacing-2xl)) var(--content-padding) var(--spacing-3xl);
}

.post-cover {
  width: 100%;
  height: 400px;
  margin-bottom: var(--spacing-xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.post-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.post-category {
  color: var(--accent-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

.post-date {
  color: var(--secondary-color);
  font-size: 0.875rem;
}

.post-author {
  color: var(--secondary-color);
  font-size: 0.875rem;
}

.post-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

.post-tags {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

.post-content {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-2xl);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.post-content p {
  margin-bottom: var(--spacing-md);
}

.post-content img {
  border-radius: var(--radius-md);
  margin: var(--spacing-lg) 0;
}

.post-content table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
  display: table;
  table-layout: fixed;
}

.post-content table th,
.post-content table td {
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
}

.post-content table th {
  background-color: var(--background-color);
  font-weight: 600;
}

.post-content table tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

.post-content blockquote {
  border-left: 4px solid var(--accent-color);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  font-style: italic;
  color: var(--secondary-color);
}

.post-content code {
  background: var(--background-color);
  padding: 0.125rem 0.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-monospace);
  font-size: 0.875rem;
}

.post-content pre {
  background: #282c34;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--spacing-sm) 0;
  width: 100%;
  max-width: 100%;
  position: relative;
  color: #abb2bf;
  font-family: var(--font-monospace);
  font-size: 0.9rem;
  line-height: 1.5;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  box-sizing: border-box;
  display: block;
}

.code-block-wrapper {
  position: relative;
  margin: var(--spacing-sm) 0;
  width: 100%;
  max-width: 100%;
  display: block;
}

.code-block-wrapper.collapsed {
  max-height: var(--code-max-height, 300px);
  overflow: hidden;
  position: relative;
}

.code-block-wrapper.collapsed::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(transparent, #282c34);
  pointer-events: none;
}

.code-block-wrapper.expanded {
  max-height: none;
}

.code-toggle {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: var(--accent-color);
  color: white;
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  z-index: 10;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.code-toggle:hover {
  background: #e06c75;
  transform: translateY(-2px);
}

.code-toggle::before {
  content: '展开代码';
}

.code-block-wrapper.expanded .code-toggle::before {
  content: '折叠代码';
}

.post-content pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
}

/* 代码高亮配色方案 - One Dark 主题 */
.post-content pre .hljs-comment,
.post-content pre .hljs-quote {
  color: #5c6370;
  font-style: italic;
}

.post-content pre .hljs-keyword,
.post-content pre .hljs-selector-tag,
.post-content pre .hljs-addition {
  color: #c678dd;
}

.post-content pre .hljs-number,
.post-content pre .hljs-string,
.post-content pre .hljs-meta .hljs-string,
.post-content pre .hljs-literal,
.post-content pre .hljs-doctag,
.post-content pre .hljs-regexp {
  color: #98c379;
}

.post-content pre .hljs-title,
.post-content pre .hljs-section,
.post-content pre .hljs-name,
.post-content pre .hljs-selector-id,
.post-content pre .hljs-selector-class {
  color: #e06c75;
}

.post-content pre .hljs-attribute,
.post-content pre .hljs-attr,
.post-content pre .hljs-variable,
.post-content pre .hljs-template-variable,
.post-content pre .hljs-class .hljs-title,
.post-content pre .hljs-type {
  color: #d19a66;
}

.post-content pre .hljs-symbol,
.post-content pre .hljs-bullet,
.post-content pre .hljs-subst,
.post-content pre .hljs-meta,
.post-content pre .hljs-meta .hljs-keyword,
.post-content pre .hljs-selector-attr,
.post-content pre .hljs-selector-pseudo,
.post-content pre .hljs-link {
  color: #61afef;
}

.post-content pre .hljs-built_in,
.post-content pre .hljs-deletion {
  color: #e06c75;
}

.post-content pre .hljs-formula {
  background: #3e4451;
}

.post-content pre .hljs-emphasis {
  font-style: italic;
}

.post-content pre .hljs-strong {
  font-weight: bold;
}

/* ===== Post Navigation ===== */
.post-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.post-nav {
  padding: var(--spacing-lg);
  background: var(--background-color);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.post-nav:hover {
  border-color: var(--accent-color);
  transform: translateY(-2px);
}

.post-nav.prev {
  text-align: left;
}

.post-nav.next {
  text-align: right;
}

.nav-label {
  display: block;
  font-size: 0.875rem;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-sm);
}

.nav-title {
  font-weight: 600;
  color: var(--primary-color);
  line-height: 1.3;
}

/* ===== Post Share ===== */
.post-share {
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-lg);
  background: var(--background-color);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.share-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-secondary);
}

.share-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.share-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary-color);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.share-btn:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

/* ===== Footer ===== */
.footer {
  background: var(--primary-color);
  color: white;
  padding: var(--spacing-3xl) var(--content-padding) var(--spacing-xl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

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

.footer-section h4 {
  color: white;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-secondary);
}

.footer-text {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-color);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-link {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.social-link:hover {
  color: var(--accent-color);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-xl);
  text-align: center;
}

.footer-copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

.footer-image {
  text-align: center;
  margin: 15px 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-image img {
  max-width: 100%;
  height: auto;
  display: inline-block;
}

/* ===== Archive Page ===== */
.archive-container {
  max-width: 800px;
  margin: 0 auto;
  padding: calc(var(--spacing-3xl) + var(--spacing-2xl)) var(--content-padding) var(--spacing-3xl);
}

.archive-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.archive-title {
  font-size: 2.5rem;
  font-family: var(--font-secondary);
}

.timeline {
  position: relative;
  padding-left: var(--spacing-lg);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.archive-year {
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.year-title {
  position: relative;
  display: inline-block;
  margin-bottom: var(--spacing-lg);
  margin-left: 0;
  background: var(--accent-color);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  white-space: nowrap;
  z-index: 10;
}

.timeline {
  position: relative;
  padding-left: 2rem;
  overflow: visible;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.archive-year {
  position: relative;
  margin-bottom: var(--spacing-xl);
  padding-left: 0;
}

.archive-post {
  position: relative;
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-lg);
}

.archive-post::before {
  content: '';
  position: absolute;
  left: -1.5rem;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  background: var(--accent-color);
  border-radius: 50%;
}

.archive-date {
  font-size: 0.875rem;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-sm);
}

.archive-post-title {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

.archive-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--secondary-color);
}

.archive-category a,
.archive-tags .tag {
  color: var(--secondary-color);
  font-size: 0.75rem;
  padding: 0.125rem 0.5rem;
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

/* ===== Categories Page ===== */
.categories-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--spacing-3xl) + var(--spacing-2xl)) var(--content-padding) var(--spacing-3xl);
}

.categories-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.categories-title {
  font-size: 2.5rem;
  font-family: var(--font-secondary);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.category-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-normal);
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.category-header {
  margin-bottom: var(--spacing-lg);
}

.category-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.category-count {
  color: var(--secondary-color);
  font-size: 0.875rem;
}

.category-description {
  margin-bottom: var(--spacing-lg);
  color: var(--secondary-color);
}

.category-latest h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-primary);
}

.latest-posts {
  list-style: none;
}

.latest-posts li {
  margin-bottom: var(--spacing-sm);
}

.latest-posts a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.latest-posts a:hover {
  background: var(--background-color);
}

.post-date {
  color: var(--secondary-color);
  font-size: 0.875rem;
}

/* ===== Tags Page ===== */
.tags-container {
  max-width: 800px;
  margin: 0 auto;
  padding: calc(var(--spacing-3xl) + var(--spacing-2xl)) var(--content-padding) var(--spacing-3xl);
}

.tags-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.tags-title {
  font-size: 2.5rem;
  font-family: var(--font-secondary);
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
}

.tag-cloud-item {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.tag-cloud-item:hover {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
  transform: translateY(-2px);
}

.tag-cloud-item--large {
  font-size: 1.25rem;
  font-weight: 600;
}

.tag-cloud-item--medium {
  font-size: 1rem;
  font-weight: 500;
}

.tag-cloud-item--small {
  font-size: 0.875rem;
}

.tag-count {
  background: var(--primary-color);
  color: white;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
}

.tag-cloud-item:hover .tag-count {
  background: white;
  color: var(--accent-color);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero-typing {
    font-size: 2rem;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .article-card--large,
  .article-card--wide,
  .article-card--tall {
    grid-column: span 1;
    grid-row: span 1;
  }
  
  .post-navigation {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .timeline {
    padding-left: var(--spacing-md);
  }
  
  .year-title {
    position: static;
    margin-bottom: var(--spacing-md);
  }
  
  .archive-post {
    padding-left: var(--spacing-md);
  }
  
  .archive-post::before {
    left: -1rem;
  }
}

@media (max-width: 480px) {
  .hero-typing {
    font-size: 1.5rem;
  }
  
  .articles-title {
    font-size: 2rem;
  }
  
  .post-title {
    font-size: 2rem;
  }
  
  .archive-title,
  .categories-title,
  .tags-title {
    font-size: 2rem;
  }
}

/* ===== Utility Classes ===== */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.hidden {
  display: none;
}

.visible {
  display: block;
}

.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Loading Animation ===== */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--accent-color);
  animation: spin 1s ease-in-out infinite;
}

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

/* ===== Smooth Scroll ===== */
html {
  scroll-behavior: smooth;
}

/* ===== Selection ===== */
::selection {
  background: var(--accent-color);
  color: white;
}

/* ===== Focus Styles ===== */
:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* ===== Comments Section ===== */
.comments-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--content-padding) var(--spacing-2xl);
}

.comments-title {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-lg);
  font-family: var(--font-secondary);
}

/* ===== Print Styles ===== */
@media print {
  .header,
  .footer,
  .hero-section,
  .post-share,
  .comments-section {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
  }
  
  .post-content {
    max-width: none;
    margin: 0;
    padding: 0;
  }
}

/* ===== Author Card Styles ===== */
.author-card-section {
  padding: calc(var(--spacing-2xl) * 2) 0 var(--spacing-sm) 0;
  background-color: var(--background-color);
}

.author-card-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
  display: flex;
  justify-content: center;
}

.author-card {
  background-color: var(--background-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  padding: var(--spacing-xl);
  max-width: 800px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.author-card--with-bg {
  position: relative;
  background-size: cover;
  background-position: center;
  color: #ffffff;
  border: none;
}

.author-card--with-bg::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  border-radius: var(--radius-lg);
  z-index: 0;
}

.author-card--with-bg > * {
  position: relative;
  z-index: 1;
}

.author-card--with-bg .author-name,
.author-card--with-bg .author-bio {
  color: #ffffff;
}

.author-card--large {
  max-width: 100%;
}

.author-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* 作者卡片动画背景样式 */
.author-card--animated {
  position: relative;
  overflow: hidden;
}

.author-card-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  border-radius: var(--radius-lg);
}

/* 粒子动画背景 */
.author-card-bg--particles {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.author-card-bg--particles::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
  animation: particleFloat 20s infinite linear;
}

@keyframes particleFloat {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(30px, -30px) rotate(120deg);
  }
  66% {
    transform: translate(-20px, 20px) rotate(240deg);
  }
  100% {
    transform: translate(0, 0) rotate(360deg);
  }
}

/* 几何图形动画背景 */
.author-card-bg--geometric {
  background: linear-gradient(45deg, #1a2a6c, #b21f1f, #fdbb2d);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
}

.author-card-bg--geometric::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(30deg, rgba(255, 255, 255, 0.1) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.1) 87.5%, rgba(255, 255, 255, 0.1)),
    linear-gradient(150deg, rgba(255, 255, 255, 0.1) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.1) 87.5%, rgba(255, 255, 255, 0.1)),
    linear-gradient(30deg, rgba(255, 255, 255, 0.1) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.1) 87.5%, rgba(255, 255, 255, 0.1)),
    linear-gradient(150deg, rgba(255, 255, 255, 0.1) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.1) 87.5%, rgba(255, 255, 255, 0.1)),
    linear-gradient(60deg, rgba(255, 255, 255, 0.1) 25%, transparent 25.5%, transparent 75%, rgba(255, 255, 255, 0.1) 75%, rgba(255, 255, 255, 0.1)),
    linear-gradient(60deg, rgba(255, 255, 255, 0.1) 25%, transparent 25.5%, transparent 75%, rgba(255, 255, 255, 0.1) 75%, rgba(255, 255, 255, 0.1));
  background-size: 80px 140px;
  background-position: 0 0, 0 0, 40px 70px, 40px 70px, 0 0, 40px 70px;
  animation: geometricMove 20s linear infinite;
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes geometricMove {
  0% {
    background-position: 0 0, 0 0, 40px 70px, 40px 70px, 0 0, 40px 70px;
  }
  100% {
    background-position: 80px 0, 80px 0, 120px 70px, 120px 70px, 80px 0, 120px 70px;
  }
}

/* 渐变动画背景 */
.author-card-bg--gradient {
  background: linear-gradient(45deg, #ff9a9e, #fad0c4, #fad0c4, #a18cd1);
  background-size: 400% 400%;
  animation: gradientWave 15s ease infinite;
}

@keyframes gradientWave {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* 暗色主题 */
.author-card-bg--dark {
  filter: brightness(0.7) contrast(1.2);
}

/* 亮色主题 */
.author-card-bg--light {
  filter: brightness(1.1) saturate(1.2);
}

/* 交互效果 */
.author-card-bg--interactive {
  cursor: pointer;
}

.author-card-bg--interactive::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: var(--radius-lg);
}

.author-card-bg--interactive:hover::after {
  opacity: 1;
}

/* 密度设置 */
.author-card-bg--low::before {
  opacity: 0.5;
}

.author-card-bg--medium::before {
  opacity: 0.7;
}

.author-card-bg--high::before {
  opacity: 0.9;
}

/* 确保内容在动画背景之上 */
.author-card--animated > *:not(.author-card-bg) {
  position: relative;
  z-index: 1;
}

.author-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  border: 4px solid var(--background-color);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-info {
  width: 100%;
}

.author-name {
  font-family: var(--font-secondary);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.author-bio {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.author-social {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--background-color);
  color: var(--secondary-color);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
  transform: translateY(-3px);
}

.author-cta {
  margin-top: var(--spacing-md);
}

.author-button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--primary-color);
  color: white;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.author-button:hover {
  background-color: var(--accent-color);
  transform: translateY(-2px);
  color: #ffffff; /* 确保文字为白色，在粉红色背景上清晰可见 */
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); /* 添加文字阴影增强可读性 */
}

/* Responsive Styles */
@media (max-width: 768px) {
  .author-card {
    padding: var(--spacing-lg);
  }
  
  .author-avatar {
    width: 100px;
    height: 100px;
  }
  
  .author-name {
    font-size: 1.75rem;
  }
}