/* ========== 全局变量 & 重置 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* 浅色模式 */
  --bg-body: #f4f7fb;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-soft: #f0f3f8;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-light: #e2e8f0;
  --accent: #3b82f6;
  --accent-soft: #dbeafe;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
  --shadow-hover: 0 20px 30px -10px rgba(0, 0, 0, 0.15);
  --header-bg: rgba(255, 255, 255, 0.8);
  --footer-border: #e2e8f0;
  --code-bg: #f1f5f9;

  /* 归档/标签/分类特有 */
  --archive-year-bg: #ffffff;
  --archive-item-hover: #f8fafc;
  --tag-group-bg: #ffffff;
  --tag-item-hover: #f8fafc;
  --category-group-bg: #ffffff;
  --category-item-hover: #f8fafc;

  /* 笔记页面特有 */
  --note-bg-hover: #fafdff;
  --interactive-bg: #ffffff;
}

body.dark {
  /* 深色模式 */
  --bg-body: #0f172a;
  --bg-surface: #1e293b;
  --bg-card: #1e293b;
  --bg-soft: #2d3a4f;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-light: #334155;
  --accent: #60a5fa;
  --accent-soft: #1e3a5f;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 25px 35px -12px rgba(0, 150, 255, 0.25);
  --header-bg: rgba(15, 23, 42, 0.8);
  --footer-border: #334155;
  --code-bg: #2d3a4f;

  --archive-year-bg: #1e293b;
  --archive-item-hover: #2d3a4f;
  --tag-group-bg: #1e293b;
  --tag-item-hover: #2d3a4f;
  --category-group-bg: #1e293b;
  --category-item-hover: #2d3a4f;

  --note-bg-hover: #26303f;
  --interactive-bg: #1e293b;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.2s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== 全局组件：头部、导航、搜索框、主题切换、页脚 ========== */
header {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background-color: var(--header-bg);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 0.75rem 1.5rem;
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo{
  flex: 1;
}

.logo a {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  font-size: 1rem;
}

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

/* 搜索框 */
.search-box form{
  display: flex;
  align-items: center;
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: 2rem;
  padding: 0.2rem 0.2rem 0.2rem 1rem;
  transition: background 0.2s, border-color 0.2s;
}

.search-box input {
  background: transparent;
  border: none;
  padding: 0.4rem 0;
  color: var(--text-primary);
  font-size: 0.9rem;
  min-width: 130px;
  width: 150px;
  outline: none;
}

.search-box input::placeholder {
  color: var(--text-muted);
  font-weight: 300;
}

.search-box button {
  background: var(--accent);
  border: none;
  border-radius: 2rem;
  width: 2.2rem;
  height: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: white;
  font-size: 1.1rem;
  transition: background 0.2s, color 0.2s;
  margin-left: 0.2rem;
}

.search-box button:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

/* 主题切换 */
.theme-toggle {
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: 2rem;
  width: 2.8rem;
  height: 2.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.4rem;
  transition: background 0.2s, transform 0.1s;
  color: var(--text-primary);
  outline: none;
}

.theme-toggle:hover {
  background: var(--accent-soft);
  transform: scale(1.05);
}

.theme-toggle:active {
  transform: scale(0.98);
}

/* 页脚 */
footer {
  border-top: 1px solid var(--footer-border);
  background-color: var(--bg-surface);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 3rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
}

/* ========== 首页样式 (卡片网格、分页) ========== */
.container {
  max-width: 1280px;
  margin: 2.5rem auto;
  padding: 0 1.5rem;
  flex: 1;
  width: 100%;
}

.main-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}

.blog-card {
  background-color: var(--bg-card);
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.25s cubic-bezier(0.2, 0, 0, 1);
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.card-image {
  height: 180px;
  background: linear-gradient(145deg, var(--accent-soft), var(--bg-soft));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 3rem;
  font-weight: 300;
  border-bottom: 1px solid var(--border-light);
}

.card-content {
  padding: 1.5rem 1.2rem 1.2rem;
  flex: 1;
}

.card-content h3 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  line-height: 1.4;
}

.card-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  gap: 1rem;
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.card-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.2rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
  font-size: 0.9rem;
  border-bottom: 1px dashed transparent;
  transition: border-color 0.2s;
}

.read-more:hover {
  border-bottom-color: var(--accent);
}

/* 分页 */
.pagination {
  margin-top: 3rem;
  display: flex;
  justify-content: center;
}

.pagination-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  background-color: var(--pagination-bg, var(--bg-surface));
  padding: 0.5rem 0.8rem;
  border-radius: 3rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
}

.pagination-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.5rem;
  border-radius: 2rem;
  color: var(--text-secondary);
  background-color: transparent;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.15s;
}

.pagination-link:hover {
  background-color: var(--pagination-hover, var(--bg-soft));
  border-color: var(--border-light);
  color: var(--accent);
}

.pagination-link.active {
  background-color: var(--accent);
  color: white;
  border-color: var(--accent);
}

.pagination-dots {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  color: var(--text-muted);
}

/* ========== 侧边栏通用样式 ========== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}

.sidebar-card {
  background-color: var(--bg-surface);
  border-radius: 1.5rem;
  padding: 1.8rem 1.5rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
}

.sidebar-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--accent), #a78bfa);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2.8rem;
  font-weight: 300;
  border: 3px solid var(--bg-surface);
  box-shadow: 0 0 0 2px var(--accent);
}

.profile p {
  color: var(--text-secondary);
  margin: 0.8rem 0 1.2rem;
}

.category-list {
  list-style: none;
}

.category-list a {
  padding: 0.7rem 0;
  text-decoration: none;
  border-bottom: 1px dashed var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.category-list a:last-child {
  border-bottom: none;
}

.category-list a:hover {
  color: var(--text-primary);
}

.category-list span {
  background-color: var(--bg-soft);
  padding: 0.2rem 0.8rem;
  border: 1px solid var(--border-light);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag {
  background-color: var(--bg-soft);
  color: var(--text-secondary);
  padding: 0.4rem 1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  border: 1px solid var(--border-light);
  transition: 0.1s;
  text-decoration: none;
}

.tag:hover, .category-list a:hover span {
  background-color: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

/* ========== 文章详情页样式 ========== */
.detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
}

.article-main {
  min-width: 0;
  background-color: var(--bg-surface);
  border-radius: 2rem;
  padding: 2.2rem 2rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
}

.article-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1.5rem;
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.featured-image {
  width: 100%;
  height: 280px;
  background: linear-gradient(145deg, var(--accent-soft), var(--bg-soft));
  border-radius: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--accent);
  margin-bottom: 2rem;
  border: 1px solid var(--border-light);
}

.article-content {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.article-content h2 {
  font-size: 1.8rem;
  font-weight: 600;
  margin: 2rem 0 1rem;
  color: var(--text-primary);
}

.article-content h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 1.5rem 0 1rem;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 1.2rem;
}

.article-content img {
  max-width: 100%;
  border-radius: 1.2rem;
  margin: 1.5rem 0;
}

.article-content .highlight {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
}

.article-content table{
  width: 100%;
}

.article-content blockquote {
  border-left: 4px solid var(--accent);
  background-color: var(--bg-soft);
  padding: 1rem 1.5rem;
  border-radius: 1rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--text-secondary);
}

.article-content pre {
  background-color: var(--code-bg);
  padding: 1.2rem;
  border-radius: 1rem;
  overflow-x: auto;
  border: 1px solid var(--border-light);
  margin: 1.5rem 0;
}

.article-content code {
  font-family: 'Fira Code', monospace;
  font-size: 0.9em;
}

.article-content ul, .article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.article-content li {
  margin-bottom: 0.4rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}

.author-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background-color: var(--bg-soft);
  border-radius: 1.5rem;
  padding: 1.2rem 1.5rem;
  margin-top: 2rem;
  border: 1px solid var(--border-light);
}

.author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--accent), #a78bfa);
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  font-weight: 300;
}

.author-info h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.author-info p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ========== 归档页样式 ========== */
.archive-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
}

.archive-main {
  background-color: var(--bg-surface);
  border-radius: 2rem;
  padding: 2.2rem 2rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
}

.archive-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.archive-header p {
  color: var(--text-muted);
  font-size: 1rem;
}

.archive-year {
  margin-bottom: 2.5rem;
}

.year-title {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent);
  border-bottom: 2px solid var(--accent-soft);
  padding-bottom: 0.3rem;
}

.year-title span {
  background-color: var(--accent-soft);
  color: var(--accent);
  font-size: 1rem;
  padding: 0.2rem 0.8rem;
  border-radius: 2rem;
}

.archive-list {
  list-style: none;
}

.archive-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-radius: 1rem;
  transition: background-color 0.15s;
  border-bottom: 1px solid var(--border-light);
}

.archive-item:hover {
  background-color: var(--archive-item-hover);
}

.item-date {
  font-size: 0.9rem;
  color: var(--text-muted);
  min-width: 65px;
  font-feature-settings: "tnum";
}

.item-title {
  flex: 1;
  font-weight: 500;
}

.item-title a {
  text-decoration: none;
  color: var(--text-primary);
  transition: color 0.2s;
}

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

.item-category {
  background-color: var(--bg-soft);
  color: var(--text-secondary);
  padding: 0.2rem 0.8rem;
  border-radius: 2rem;
  font-size: 0.75rem;
  border: 1px solid var(--border-light);
}

/* ========== 标签页样式 ========== */
.tags-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
}

.tags-main {
  background-color: var(--bg-surface);
  border-radius: 2rem;
  padding: 2.2rem 2rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
}

.tags-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.tags-header p {
  color: var(--text-muted);
  font-size: 1rem;
}

.tag-group {
  margin-bottom: 2.5rem;
}

.tag-title {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--accent-soft);
  color: var(--accent);
  padding: 0.3rem 1.2rem 0.3rem 1rem;
  border-radius: 3rem;
  border: 1px solid var(--border-light);
}

.tag-title span {
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.1rem 0.6rem;
  border-radius: 2rem;
}

.tag-articles {
  list-style: none;
  margin-left: 0.5rem;
}

.tag-article-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.7rem 1rem;
  border-radius: 1rem;
  transition: background-color 0.15s;
  border-bottom: 1px solid var(--border-light);
}

.tag-article-item:hover {
  background-color: var(--tag-item-hover);
}

/* ========== 分类页样式 ========== */
.categories-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
}

.categories-main {
  background-color: var(--bg-surface);
  border-radius: 2rem;
  padding: 2.2rem 2rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
}

.categories-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.categories-header p {
  color: var(--text-muted);
  font-size: 1rem;
}

.category-group {
  margin-bottom: 2.5rem;
}

.category-title {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--accent-soft);
  color: var(--accent);
  padding: 0.3rem 1.2rem 0.3rem 1rem;
  border-radius: 3rem;
  border: 1px solid var(--border-light);
}

.category-title span {
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.1rem 0.6rem;
  border-radius: 2rem;
}

.category-articles {
  list-style: none;
  margin-left: 0.5rem;
}

.category-article-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.7rem 1rem;
  border-radius: 1rem;
  transition: background-color 0.15s;
  border-bottom: 1px solid var(--border-light);
}

.category-article-item:hover {
  background-color: var(--category-item-hover);
}

/* ========== 笔记页面样式 (类微博流) ========== */
/* 笔记页面使用更窄的容器 */
.notes-container {
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1.5rem;
  flex: 1;
  width: 100%;
}

.notes-header {
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.notes-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.notes-header h1 span {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1rem;
  padding: 0.2rem 1rem;
  border-radius: 30px;
}

.new-note-btn {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 2rem;
  padding: 0.5rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.new-note-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.notes-feed {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.note-card {
  background-color: var(--bg-card);
  border-radius: 1.8rem;
  padding: 1.5rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}

.note-card:hover {
  background-color: var(--note-bg-hover);
  border-color: var(--accent-soft);
}

.note-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
}

.note-header .avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--accent), #f472b6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.8rem;
  font-weight: 300;
  flex-shrink: 0;
}

.author-name {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.author-name .badge {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.7rem;
  padding: 0.1rem 0.5rem;
  border-radius: 30px;
}

.note-time {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.note-content {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0.2rem 0 1rem 56px;
  word-break: break-word;
}

.note-content p {
  margin-bottom: 0.6rem;
}

.note-content .topic-tag {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.note-content .topic-tag:hover {
  text-decoration: underline;
}

.note-images {
  margin: 0.8rem 0 0.8rem 56px;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.image-placeholder {
  width: 100px;
  height: 100px;
  background: var(--bg-soft);
  border-radius: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 2rem;
  border: 1px solid var(--border-light);
}

.note-actions {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  margin-top: 0.8rem;
  margin-left: 56px;
  padding-top: 0.6rem;
  border-top: 1px solid var(--border-light);
}

.action-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  transition: color 0.15s;
  padding: 0.2rem 0.5rem;
  border-radius: 2rem;
}

.action-btn:hover {
  color: var(--accent);
  background-color: var(--accent-soft);
}

.divider {
  text-align: center;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.8rem;
  position: relative;
}

.divider::before,
.divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 30%;
  height: 1px;
  background: var(--border-light);
}

.divider::before {
  left: 0;
}

.divider::after {
  right: 0;
}

/* 搜索页布局 */
.search-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
}

.search-main {
  background-color: var(--bg-surface);
  border-radius: 2rem;
  padding: 2.2rem 2rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
}

.search-main h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

/* 搜索表单 */
.search-form {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.search-form input {
  flex: 1;
  padding: 0.8rem 1.2rem;
  border: 1px solid var(--border-light);
  border-radius: 2rem;
  background-color: var(--bg-soft);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.search-form input:focus {
  border-color: var(--accent);
}

.search-form button {
  padding: 0.8rem 2rem;
  background-color: var(--accent);
  color: white;
  border: none;
  border-radius: 2rem;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.search-form button:hover {
  background-color: var(--accent-soft);
  color: var(--accent);
}

/* 搜索结果 */
.search-results {
  margin-top: 2rem;
}

.search-stats {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.search-result-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-light);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.search-result-item h3 a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s;
}

.search-result-item h3 a:hover {
  color: var(--accent);
}

.search-meta {
  display: flex;
  gap: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
}

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

/* 高亮关键词 */
mark {
  background-color: var(--accent-soft);
  color: var(--accent);
  padding: 0 2px;
  border-radius: 4px;
}

/* 加载和错误提示 */
.search-loading,
.search-error,
.search-no-results {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* 上一篇/下一篇导航 */
.post-nav {
  margin-top: 3rem;
  border-top: 1px solid var(--border-light);
  padding-top: 2rem;
}

.post-nav-list {
  display: flex;
  justify-content: space-between;
  list-style: none;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.post-nav-prev,
.post-nav-next {
  flex: 1;
  min-width: 0; /* 防止长标题溢出 */
}

.post-nav a {
  display: block;
  text-decoration: none;
  color: var(--text-primary);
  padding: 1rem 1.2rem;
  border: 1px solid var(--border-light);
  border-radius: 1rem;
  transition: all 0.2s ease;
  height: 100%;
  box-sizing: border-box;
}

.post-nav a:hover {
  background-color: var(--accent-soft);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.post-nav span {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.post-nav strong {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  word-break: break-word;
}


/* ========== 响应式设计 ========== */
@media screen and (max-width: 900px) {
  .logo span{
    display: none;
  }
  .main-grid,
  .detail-grid,
  .archive-grid,
  .tags-grid,
  .categories-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .sidebar {
    order: 2;
  }
  .search-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media screen and (max-width: 760px) {
  .nav-links {
    gap: 1rem;
  }
  .search-box {
    order: 1;
    width: 100%;
    margin-top: 0.5rem;
  }
  .search-box input {
    flex: 1;
    width: auto;
    min-width: 0;
  }
  /* 笔记页面移动端调整 */
  .note-content,
  .note-images,
  .note-actions {
    margin-left: 0;
  }
  .note-header .avatar {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }
  .image-placeholder {
    width: 70px;
    height: 70px;
    font-size: 1.5rem;
  }
  .note-actions {
    gap: 1rem;
  }
}

@media screen and (max-width: 640px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
  .header-container {
    align-items: flex-start;
  }
  .nav-links {
    width: 100%;
    justify-content: space-between;
  }
  .logo a {
    font-size: 1.8rem;
  }
  .container,
  .notes-container {
    margin: 1.5rem auto;
  }
  .article-main,
  .archive-main,
  .tags-main,
  .categories-main {
    padding: 1.5rem;
  }
  .article-header h1 {
    font-size: 2rem;
  }
  .featured-image {
    height: 200px;
    font-size: 4rem;
  }
  .year-title,
  .tag-title,
  .category-title {
    font-size: 1.5rem;
  }
  .archive-item,
  .tag-article-item,
  .category-article-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
  }
  .item-date {
    min-width: auto;
  }
  .notes-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .post-nav-list {
    flex-direction: column;
    gap: 1rem;
  }
  
  .post-nav a {
    padding: 0.8rem 1rem;
  }
  
  .post-nav strong {
    font-size: 1rem;
  }
}

@media screen and (max-width: 480px) {
  .pagination-list {
    gap: 0.2rem;
    padding: 0.3rem 0.5rem;
  }
  .pagination-link {
    min-width: 2rem;
    height: 2rem;
    font-size: 0.9rem;
  }
  .note-actions {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
}

@media screen and (max-width: 400px) {
  .theme-toggle {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.2rem;
  }
}

/* ========== 工具类 ========== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.inline-code {
  background: var(--code-bg);
  padding: 0.2rem 0.4rem;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.9em;
  color: var(--accent);
}