:root {
  --primary: #2c3e50;
  --secondary: #6c757d;
  --accent: #3498db;
  --bg: #f8f9fa;
  --error: #dc3545;
  --text: #4a5568;
  --border: #f0f0f0;
  --card-bg: #ffffff;
}

:root[data-theme="dark"] {
  --primary: #a0b3c9;
  --secondary: #9ba6af;
  --accent: #61afef;
  --bg: #1a1b1e;
  --error: #f56c6c;
  --text: #e0e0e0;
  --border: #2c2e31;
  --card-bg: #2c2e31;
}

/* 基础样式 */
body {
  font-family: 'Microsoft YaHei', sans-serif;
  line-height: 1.8;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  transition: background-color 0.3s ease;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* 主题切换按钮 */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 2px solid var(--accent);
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 1000;
}

.theme-toggle:hover {
  transform: rotate(180deg);
  background: var(--accent);
  color: var(--card-bg);
}

/* 作者信息区 */
.author-header {
  max-width: 800px;
  margin: 3rem auto 2rem;
}

.author-card {
  display: flex;
  gap: 2rem;
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  position: relative;
}

.author-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  flex-shrink: 0;
}

.author-info {
  flex: 1;
}

.author-info h1 {
  margin: 0 0 0.5rem;
  color: var(--primary);
  font-size: 1.8rem;
}

/* 动态文案区 */
.random-quote {
  margin-top: 1rem;
  position: relative;
}

#dynamic-quote {
  min-height: 60px;
  padding: 1.2rem;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--secondary);
  position: relative;
}

.loading-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 1rem;
}

.dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: bounce 1.4s infinite;
}

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

.refresh-btn {
  position: absolute;
  right: -15px;
  bottom: -15px;
  width: 40px;
  height: 40px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--card-bg);
  color: var(--accent);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.refresh-btn:hover {
  background: var(--accent);
  color: var(--card-bg);
  transform: rotate(360deg);
}

/* 错误提示 */
.error-message {
  padding: 1rem;
  background: var(--error);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--card-bg);
}

.error-message i {
  margin-right: 0.5rem;
}

/* 文章列表 */
.post-container {
  max-width: 800px;
  margin: 0 auto;
}

.post-card {
  background: var(--card-bg);
  padding: 1.8rem;
  margin-bottom: 2rem;
  border-radius: 10px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: transform 0.2s ease;
}

.post-card:hover {
  transform: translateY(-3px);
}

.post-title {
  margin: 0 0 0.5rem;
  font-size: 1.4rem;
  color: var(--primary);
}

.post-meta {
  color: var(--secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.post-excerpt {
  color: var(--secondary);
  line-height: 1.6;
}

/* 文章页样式 */
.post-article {
  background: var(--card-bg);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  padding: 3rem 2.5rem;
}

.post-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
}

.post-content {
  color: var(--text);
}

.post-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg);
  color: var(--secondary);
}

.post-content pre {
  background: var(--primary);
  color: var(--card-bg);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .theme-toggle {
    top: 10px;
    right: 10px;
  }
  
  .author-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
  }

  .author-avatar {
    width: 100px;
    height: 100px;
  }

  .refresh-btn {
    position: static;
    margin: 1rem auto 0;
  }

  body {
    padding: 15px;
  }

  .post-card {
    padding: 1.2rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .author-card {
    padding: 1rem;
  }

  #dynamic-quote {
    padding: 1rem;
  }
}

/* 文章页导航栏 */
.post-nav {
  margin-bottom: 2rem;
}

.home-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent);
  font-size: 1rem;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  background: var(--card-bg);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.home-link:hover {
  transform: translateX(-3px);
  text-decoration: none;
}

/* 文章页主体 */
.post-main {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

/* 文章元信息 */
.post-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--secondary);
  font-size: 0.9rem;
}

.meta-item i {
  color: var(--accent);
}

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

.tag {
  background: var(--bg);
  padding: 0.2rem 0.8rem;
  border-radius: 15px;
  font-size: 0.85rem;
  color: var(--accent);
  transition: all 0.3s ease;
}

.tag:hover {
  background: var(--accent);
  color: var(--card-bg);
  text-decoration: none;
}

/* 文章目录 */
.post-toc {
  position: fixed;
  right: 2rem;
  top: 100px;
  width: 250px;
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  max-height: calc(100vh - 200px);
  overflow-y: auto;
}

.toc-title {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent);
}

.post-toc ol {
  list-style: none;
  padding-left: 1rem;
}

.post-toc a {
  color: var(--text);
  font-size: 0.9rem;
  display: block;
  padding: 0.3rem 0;
  transition: all 0.3s ease;
}

.post-toc a:hover {
  color: var(--accent);
  text-decoration: none;
  transform: translateX(5px);
}

/* 文章底部导航 */
.post-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.nav-links {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.prev-post,
.next-post {
  flex: 1;
  padding: 1rem;
  background: var(--bg);
  border-radius: 8px;
  color: var(--text);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.prev-post:hover,
.next-post:hover {
  background: var(--accent);
  color: var(--card-bg);
  text-decoration: none;
}

.next-post {
  text-align: right;
  justify-content: flex-end;
}

/* 访问统计 */
.post-stats {
  text-align: center;
  margin-top: 2rem;
  color: var(--secondary);
  font-size: 0.9rem;
}

.post-stats i {
  color: var(--accent);
  margin-right: 0.5rem;
}

/* 响应式调整 */
@media (max-width: 1200px) {
  .post-toc {
    display: none;
  }
}

@media (max-width: 768px) {
  .post-article {
    padding: 2rem 1.5rem;
  }

  .nav-links {
    flex-direction: column;
  }

  .prev-post,
  .next-post {
    width: 100%;
  }
}