/* ============================
   QIWI THEME - UNIFIED CSS SYSTEM
   Dark Minimalist Design
   ============================ */

/* ===== CSS CUSTOM PROPERTIES (VARIABLES) ===== */
:root {
  /* Colors */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #161616;
  --color-bg-tertiary: #1f1f1f;
  --color-text-primary: #e8e8e8;
  --color-text-secondary: #a8a8a8;
  --color-text-muted: #666666;
  --color-accent: #d99f00;
  --color-accent-hover: #bf9200;
  --color-border: #2a2a2a;
  --color-border-light: #3a3a3a;
  
  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-code: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-sm: 14px;
  --font-size-xs: 12px;
  --line-height-base: 1.7;
  --line-height-heading: 1.3;
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 64px;
  
  /* Layout */
  --container-max-width: 1200px;
  --content-max-width: 800px;
  --sidebar-width: 240px;
  
  /* Border radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* ===== RESET & BASE STYLES ===== */
* {
  box-sizing: border-box;
}

body, html {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  scroll-behavior: smooth;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-primary);
  font-weight: 600;
  line-height: var(--line-height-heading);
  margin: 0 0 var(--spacing-sm) 0;
}

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

p {
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ===== LAYOUT COMPONENTS ===== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.main-wrapper {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: var(--spacing-lg);
  min-height: calc(100vh - 200px);
}

.content-area {
  max-width: var(--content-max-width);
}

.sidebar {
  background-color: var(--color-bg-secondary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  height: fit-content;
  position: sticky;
  top: var(--spacing-lg);
}

/* ===== HEADER STYLES ===== */
.site-header {
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  margin-bottom: var(--spacing-xl);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
}

.site-title:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.site-description {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin: var(--spacing-xs) 0 0 0;
}

.site-nav {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.site-nav a {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: all 0.2s ease;
}

.site-nav a:hover,
.site-nav a.current {
  color: var(--color-text-primary);
  background-color: var(--color-bg-tertiary);
  text-decoration: none;
}

.search-form {
  display: flex;
  align-items: center;
  background-color: var(--color-bg-tertiary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xs);
}

.search-form input {
  background: none;
  border: none;
  color: var(--color-text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
  width: 200px;
}

.search-form input::placeholder {
  color: var(--color-text-muted);
}

.search-form button {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-sm);
}

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

/* ===== POST LIST STYLES ===== */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-list-item {
  margin-bottom: var(--spacing-lg);
  transition: all 0.2s ease;
}

.post-list-item:last-child {
  margin-bottom: 0;
}

.post-card {
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background-color: var(--color-bg-secondary);
  transition: all 0.3s ease;
  cursor: pointer;
}

.post-card:hover {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.post-preview {
  transition: all 0.2s ease;
}

.post-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0 0 var(--spacing-sm) 0;
}

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

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

.post-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.post-meta span {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* ===== POST TAGS META STYLES ===== */
.post-tags-meta {
  color: var(--color-text-muted);
}

.post-tags-meta a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.post-tags-meta a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

/* ===== POST READING INFO STYLES ===== */
.post-reading-info {
  color: var(--color-text-muted);
  font-weight: 500;
  background-color: var(--color-bg-tertiary);
  padding: 4px 8px;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  border: 1px solid var(--color-border);
  transition: all 0.2s ease;
}

.post-reading-info:hover {
  background-color: var(--color-border-light);
  border-color: var(--color-accent);
  color: var(--color-text-secondary);
}

/* ===== POST EDIT BUTTON STYLES ===== */
.post-edit-btn {
  margin-left: var(--spacing-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  /* 一行内显示 */
  display: inline-flex;
  align-items: center;
}

.post-edit-btn:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.post-edit-btn svg {
  color: var(--color-text-muted);
}

.post-edit-btn a {
  color: var(--color-text-muted);
}

.post-edit-btn a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.post-excerpt {
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
  margin: 0;
}

/* ===== THUMBNAIL STYLES ===== */
.post-thumbnail {
  width: 100%;
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  border-radius: var(--border-radius-md);
  position: relative;
}

.post-thumbnail a {
  display: block;
  text-decoration: none;
}

.post-thumbnail img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.3s ease, opacity 0.3s ease;
  border-radius: var(--border-radius-md);
  opacity: 0.9;
}

.post-card:hover .post-thumbnail img {
  transform: scale(1.02);
  opacity: 1;
}

.post-thumbnail-single {
  width: 100%;
  margin-bottom: var(--spacing-xl);
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
}

.post-thumbnail-single img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  opacity: 0.95;
  transition: opacity 0.3s ease;
}

.post-thumbnail-single img:hover {
  opacity: 1;
}

/* ===== SINGLE POST STYLES ===== */
.post-card-container {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-xl);
  transition: all 0.3s ease;
}

.post-card-container:hover {
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-md);
}

.post-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.post-header .post-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.post-content {
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

/* ===== SINGLE PAGE STYLES ===== */
.single-page {
  margin-bottom: var(--spacing-xxl);
}

.page-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.page-meta {
  margin-top: var(--spacing-md);
}

.page-date {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.page-date svg {
  flex-shrink: 0;
}

.page-content {
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

.page-content h2,
.page-content h3,
.page-content h4 {
  color: var(--color-text-primary);
  margin: var(--spacing-xl) 0 var(--spacing-md) 0;
}

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

.page-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
  margin: var(--spacing-lg) 0;
}

.page-content blockquote {
  background-color: var(--color-bg-secondary);
  border-left: 4px solid var(--color-accent);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  border-radius: var(--border-radius-sm);
  font-style: italic;
}

.page-content pre {
  background-color: var(--color-bg-secondary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  overflow-x: auto;
  font-family: var(--font-family-code);
  font-size: var(--font-size-sm);
}

.page-content code {
  background-color: var(--color-bg-tertiary);
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-family-code);
  font-size: var(--font-size-sm);
}

.page-content pre code {
  background: none;
  padding: 0;
}

.post-content h2,
.post-content h3,
.post-content h4 {
  color: var(--color-text-primary);
  margin: var(--spacing-xl) 0 var(--spacing-md) 0;
}

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

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
  margin: var(--spacing-lg) 0;
}

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

.post-content pre {
  background-color: var(--color-bg-secondary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  overflow-x: auto;
  font-family: var(--font-family-code);
  font-size: var(--font-size-sm);
}

.post-content code {
  background-color: var(--color-bg-tertiary);
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-family-code);
  font-size: var(--font-size-sm);
}

.post-content pre code {
  background: none;
  padding: 0;
}

/* ===== SIDEBAR STYLES ===== */
.widget {
  margin-bottom: var(--spacing-lg);
}

.widget:last-child {
  margin-bottom: 0;
}

.widget-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-accent);
}

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

.widget-list li {
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
}

.widget-list li:last-child {
  border-bottom: none;
}

.widget-list a {
  color: var(--color-text-secondary);
  text-decoration: none;
  display: block;
  padding: 4px 0;
  transition: color 0.2s ease;
  font-size: var(--font-size-sm);
}

.widget-list a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

/* Recent Posts Styles */
.recent-posts .recent-post-item {
  padding: 2px 0;
  border-bottom: none;
}

.recent-posts .recent-post-item:last-child {
  border-bottom: none;
}

.recent-post-link {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: 0;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.recent-post-link:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.recent-post-title {
  flex: 1;
  line-height: 1.4;
  font-size: var(--font-size-sm);
}

.recent-post-date {
  flex-shrink: 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  margin-left: auto;
}

/* ===== PAGINATION ===== */
.page-navigator {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-xl) 0;
}

.page-navigator a,
.page-navigator span {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border-radius: var(--border-radius-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.page-navigator a:hover {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  text-decoration: none;
}

.page-navigator .current {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
}

/* ===== COMMENTS STYLES ===== */
.comments-section {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

#comments {
  background-color: var(--color-bg-secondary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}

#comments h3 {
  color: var(--color-text-primary);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-accent);
}

/* Comment List Styles */
.comment-list, .comment-children {
  list-style: none;
  padding: 0;
  margin: 0;
}

.comment-body {
  background-color: var(--color-bg-tertiary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-left: 3px solid var(--color-accent);
}

.comment-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.comment-author {
  font-weight: 600;
  color: var(--color-accent);
}

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

.comment-author a:hover {
  text-decoration: underline;
}

.comment-time {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.comment-content {
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
  margin: var(--spacing-sm) 0;
}

.comment-content p {
  margin: 0 0 var(--spacing-sm) 0;
}

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

.comment-reply {
  font-size: var(--font-size-sm);
}

.comment-reply a {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: var(--border-radius-sm);
  transition: all 0.2s ease;
}

.comment-reply a:hover {
  color: var(--color-accent);
  background-color: var(--color-bg-secondary);
}

/* Comment Form Styles */
.respond {
  background-color: var(--color-bg-tertiary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  margin-top: var(--spacing-lg);
}

.respond h3 {
  margin-top: 0;
  color: var(--color-text-primary);
}

.respond form {
  display: grid;
  gap: var(--spacing-md);
}

.respond p {
  margin: 0;
}

.respond label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.respond label.required::after {
  content: " *";
  color: var(--color-accent);
}

.respond input[type="text"],
.respond input[type="email"],
.respond input[type="url"],
.respond textarea {
  width: 100%;
  padding: var(--spacing-sm);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  transition: border-color 0.2s ease;
}

.respond input[type="text"]:focus,
.respond input[type="email"]:focus,
.respond input[type="url"]:focus,
.respond textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.respond textarea {
  resize: vertical;
  min-height: 120px;
  line-height: var(--line-height-base);
}

.respond .submit {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all 0.2s ease;
  justify-self: start;
}

.respond .submit:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

/* Comment Navigation */
.comment-pagenav {
  margin: var(--spacing-lg) 0;
  text-align: center;
}

.comment-pagenav a {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  margin: 0 var(--spacing-xs);
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  transition: all 0.2s ease;
}

.comment-pagenav a:hover {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
}

/* Comment Children (Replies) */
.comment-children {
  margin-left: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.comment-children .comment-body {
  border-left-color: var(--color-text-muted);
  background-color: var(--color-bg-secondary);
}

/* ===== FOOTER STYLES ===== */
.site-footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-xxl);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-info p {
  margin: 0;
  line-height: 1.5;
}

.footer-info .site-description {
  margin-top: var(--spacing-xs);
  opacity: 0.8;
  font-size: var(--font-size-xs);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--spacing-sm);
}

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

.footer-links a {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.theme-info {
  display: flex;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.theme-name {
  font-weight: 500;
}

.theme-name a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.theme-name a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.theme-version {
  opacity: 0.6;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 48px;
  height: 48px;
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 1000;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.back-to-top svg {
  transition: transform 0.2s ease;
}

.back-to-top:hover svg {
  transform: translateY(-1px);
}

/* ===== FLOATING ADD BUTTON ===== */
.floating-add-btn {
  position: fixed;
  bottom: var(--spacing-lg);
  right: calc(var(--spacing-lg) + 60px);
  width: 48px;
  height: 48px;
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 1000;
  font-size: 20px;
  font-weight: bold;
}

.floating-add-btn.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.floating-add-btn:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.floating-add-btn:active {
  transform: translateY(0);
}

/* ===== SEARCH FORM ENHANCEMENTS ===== */
.search-form.focused {
  box-shadow: 0 0 0 2px var(--color-accent);
}

.search-form input:focus {
  outline: none;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  .main-wrapper {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .sidebar {
    order: 1;
    position: static;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .site-header .container {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .search-form {
    width: 100%;
    max-width: 300px;
  }

  .search-form input {
    width: 100%;
  }

  .post-title {
    font-size: 1.25rem;
  }

  .post-header .post-title,
  .page-title {
    font-size: 2rem;
  }

  .post-meta,
  .page-meta {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  /* 平板端浮动按钮调整 */
  .floating-add-btn {
    bottom: var(--spacing-md);
    right: calc(var(--spacing-md) + 50px);
  }
}

@media (max-width: 480px) {
  .page-navigator {
    flex-wrap: wrap;
  }

  .page-navigator a,
  .page-navigator span {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
  }

  .page-title {
    font-size: 1.75rem;
  }

  .page-date {
    font-size: var(--font-size-xs);
  }

  /* 移动端浮动按钮调整 */
  .floating-add-btn {
    bottom: var(--spacing-sm);
    right: calc(var(--spacing-sm) + 50px);
  }
}

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

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

.mb-0 { margin-bottom: 0; }
.mt-0 { margin-top: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mt-sm { margin-top: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mt-md { margin-top: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mt-lg { margin-top: var(--spacing-lg); }

/* ===== ADDITIONAL POST PREVIEW STYLES ===== */
.post-preview {
  transition: all 0.3s ease;
}

.post-preview-header {
  margin-bottom: var(--spacing-md);
}

/* ===== EMPTY STATE STYLES ===== */
.empty-posts {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
  color: var(--color-text-muted);
}

.empty-icon {
  margin-bottom: var(--spacing-lg);
  opacity: 0.6;
}

.empty-posts h2 {
  color: var(--color-text-secondary);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.empty-posts p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ===== SINGLE POST ENHANCEMENTS ===== */
.single-post .post-meta svg {
  flex-shrink: 0;
}

.post-tags {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-md);
  background-color: var(--color-bg-tertiary);
  border-radius: var(--border-radius-md);
  border-left: 3px solid var(--color-accent);
}

.post-tags svg {
  flex-shrink: 0;
  margin-top: 0;
}

.tags-label {
  color: var(--color-text-secondary);
  font-weight: 500;
}

.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tags-list a {
  padding: 4px 8px;
  background-color: var(--color-bg-tertiary);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.tags-list a:hover {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  text-decoration: none;
}

/* ===== POST NAVIGATION STYLES ===== */
.post-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: var(--spacing-xl) 0;
  background-color: var(--color-bg-tertiary);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.nav-previous,
.nav-next {
  width: 100%;
  position: relative;
}

.nav-previous {
  border-right: 1px solid var(--color-border);
}

.nav-next {
  justify-self: start;
  text-align: left;
}

.nav-previous {
  justify-self: end;
  text-align: right;
}

.nav-post {
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  padding: var(--spacing-lg);
  height: 100%;
  width: 100%;
  box-sizing: border-box;
  min-height: 80px;
}

.nav-post:hover {
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
  text-decoration: none;
}

/* Ensure proper link styling for the entire button area */
.nav-post:link,
.nav-post:visited {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.nav-post:hover,
.nav-post:active {
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

.nav-label.nav-label-right {
  justify-content: flex-end;
}

.nav-title {
  display: block;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
  color: var(--color-accent);
}

.nav-title:hover {
  text-decoration: underline;
}

/* Disabled navigation state */
.nav-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.nav-disabled:hover {
  background-color: var(--color-bg-tertiary);
  transform: none;
}

.nav-disabled .nav-title {
  color: var(--color-text-muted);
}

.nav-disabled .nav-label {
  color: var(--color-text-muted);
}

/* ===== ENHANCED SIDEBAR STYLES ===== */
.widget-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.widget-title svg {
  flex-shrink: 0;
}

.search-widget .search-form {
  width: 100%;
}

.search-widget .search-input {
  width: 100%;
}

.comment-item {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.comment-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xs);
}

.comment-author {
  color: var(--color-accent);
  /* font-weight: 500; */
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: bold;
}

.comment-date {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.comment-excerpt {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  /* ittalic */
  /* font-style: italic; */
}

/* ===== TAGS CLOUD STYLES ===== */
.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tag-item {
  padding: 6px 12px;
  background-color: var(--color-bg-tertiary);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.tag-item:hover {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  text-decoration: none;
  transform: translateY(-1px);
}

/* ===== SITE STATISTICS STYLES ===== */
.stats-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background-color: var(--color-bg-tertiary);
  border-radius: var(--border-radius-md);
  transition: all 0.2s ease;
}

.stat-item:hover {
  background-color: var(--color-border-light);
  transform: translateY(-2px);
}

.stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ===== META LINKS STYLES ===== */
.meta-links a {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

.meta-links svg {
  flex-shrink: 0;
}

/* ===== ENHANCED RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  .post-card-container {
    padding: var(--spacing-lg);
  }
  
  .post-navigation {
    grid-template-columns: 1fr;
  }
  
  .nav-previous {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
  }
  
  .nav-next {
    text-align: center;
  }
  
  .stats-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .post-card-container {
    padding: var(--spacing-md);
    margin: 0 calc(-1 * var(--spacing-sm));
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  
  .post-tags {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
  }
  
  .tags-list {
    width: auto;
    flex: 1;
  }
  
  .nav-post {
    padding: var(--spacing-md);
    min-height: 70px;
  }
  
  .nav-title {
    white-space: normal;
    overflow: visible;
    text-overflow: initial;
    line-height: 1.3;
  }
  
  .stats-list {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
  }
  
  .stat-item {
    padding: var(--spacing-sm);
  }
  
  .stat-number {
    font-size: 1.25rem;
  }
  
  /* Thumbnail responsive styles */
  .post-thumbnail img {
    height: 180px;
  }
  
  .post-thumbnail-single img {
    height: 250px;
  }
}

@media (max-width: 480px) {
  .post-meta {
    gap: var(--spacing-sm);
  }
  
  .post-meta span {
    font-size: var(--font-size-xs);
  }
  
  .tags-cloud {
    gap: 6px;
  }
  
  .tag-item {
    padding: 4px 8px;
    font-size: var(--font-size-xs);
  }
  
  /* Small screen thumbnail adjustments */
  .post-thumbnail img {
    height: 160px;
  }
  
  .post-thumbnail-single img {
    height: 220px;
  }
}

/* ===== TABLE STYLES ===== */
table {
  width: 100%;
  margin: var(--spacing-lg) 0;
  border-collapse: collapse;
  background-color: var(--color-bg-secondary);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

thead {
  background-color: var(--color-bg-tertiary);
}

thead th {
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: var(--font-size-base);
  padding: var(--spacing-md) var(--spacing-sm);
  border-bottom: 2px solid var(--color-accent);
  position: relative;
}

tbody tr {
  transition: background-color 0.2s ease;
}

tbody tr:nth-child(even) {
  background-color: var(--color-bg-tertiary);
}

tbody tr:hover {
  background-color: var(--color-border-light);
}

tbody td {
  padding: var(--spacing-sm);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

tbody tr:last-child td {
  border-bottom: none;
}

/* Table alignment styles */
th[align="left"],
td[align="left"] {
  text-align: left;
}

th[align="center"],
td[align="center"] {
  text-align: center;
}

th[align="right"],
td[align="right"] {
  text-align: right;
}

/* Default alignment if not specified */
th:first-child,
td:first-child {
  text-align: left;
}

/* Table responsiveness */
.table-responsive {
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
  border-radius: var(--border-radius-md);
}

.table-responsive table {
  margin: 0;
  min-width: 600px;
}

/* Content area table styles */
.post-content table,
.page-content table {
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
}

.post-content th,
.page-content th {
  background-color: var(--color-bg-tertiary);
}

.post-content td,
.page-content td {
  border-right: 1px solid var(--color-border);
}

.post-content td:last-child,
.page-content td:last-child {
  border-right: none;
}

/* Table caption styles */
caption {
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  text-align: left;
  caption-side: top;
}

/* Small table variant */
.table-sm th,
.table-sm td {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
}

/* Borderless table variant */
.table-borderless th,
.table-borderless td {
  border: none;
}

.table-borderless tbody tr:nth-child(even) {
  background-color: transparent;
}

/* Compact table variant */
.table-compact {
  margin: var(--spacing-md) 0;
}

.table-compact th,
.table-compact td {
  padding: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

/* ===== RESPONSIVE TABLE STYLES ===== */
@media (max-width: 768px) {
  table {
    font-size: var(--font-size-sm);
  }
  
  th, td {
    padding: var(--spacing-xs);
  }
  
  .table-responsive {
    border-radius: 0;
    margin: var(--spacing-md) calc(-1 * var(--spacing-sm));
  }
  
  .table-responsive table {
    min-width: 500px;
  }
}

@media (max-width: 480px) {
  .table-responsive table {
    min-width: 400px;
  }
  
  th, td {
    padding: 6px 8px;
    font-size: var(--font-size-xs);
  }
  
  caption {
    font-size: var(--font-size-base);
  }
}

/* ===== TIMEMACHINE PAGE STYLES ===== */
.timemachine-page {
  margin-bottom: var(--spacing-xl);
}

.timemachine-page .page-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.timemachine-page .page-title {
  display: flex;
  align-items: center;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.timemachine-page .page-title svg {
  color: var(--color-accent);
  margin-right: var(--spacing-sm);
}

/* Timemachine Stats */
.timemachine-stats {
  margin-top: var(--spacing-md);
}

.timemachine-stats .stats-item {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
}

.timemachine-stats svg {
  color: var(--color-accent);
}

/* Timemachine Publisher */
.timemachine-publisher {
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.timemachine-publisher:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

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

.publisher-header h3 {
  color: var(--color-text-primary);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.publisher-header p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

.timemachine-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.publisher-content {
  position: relative;
}

.timemachine-form textarea {
  width: 100%;
  padding: var(--spacing-md);
  background-color: var(--color-bg-primary);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  resize: vertical;
  min-height: 120px;
  transition: all 0.2s ease;
}

.timemachine-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(217, 159, 0, 0.1);
}

.timemachine-form textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.8;
}

.publisher-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.publisher-tips {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.tip-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.tip-item svg {
  opacity: 0.7;
}

.publish-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  color: var(--color-bg-primary);
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.publish-btn:hover {
  background: linear-gradient(135deg, var(--color-accent-hover) 0%, var(--color-accent) 100%);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.publish-btn:active {
  transform: translateY(0);
}

/* Timemachine Content */
.timemachine-content {
  margin-top: var(--spacing-xl);
}

.timemachine-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* Timemachine Item */
.timemachine-item {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.timemachine-item:hover {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.timemachine-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.timemachine-item:hover::before {
  opacity: 1;
}

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

.author-avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.author-avatar svg {
  color: var(--color-bg-primary);
}

.meta-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.author-name {
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
}

.publish-time {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.timemachine-text {
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
  word-wrap: break-word;
}

.timemachine-text p {
  margin: 0 0 var(--spacing-sm) 0;
}

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

.timemachine-text strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.timemachine-text em {
  font-style: italic;
  color: var(--color-accent);
}

.timemachine-text code {
  background-color: var(--color-bg-tertiary);
  color: var(--color-accent);
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-family-code);
  font-size: 0.9em;
}

.timemachine-text a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: all 0.2s ease;
}

.timemachine-text a:hover {
  color: var(--color-accent-hover);
  text-decoration-color: var(--color-accent-hover);
}

.timemachine-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}

.action-time {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  opacity: 0.8;
}

.action-time svg {
  opacity: 0.6;
}

/* Timemachine Pagination */
.timemachine-pagination {
  margin-top: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center;
}

/* 分页导航样式 */
.pagination-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-md);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: all 0.2s ease;
  cursor: pointer;
  min-width: 100px;
  justify-content: center;
}

.pagination-btn:hover {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  border-color: var(--color-accent);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.pagination-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-muted);
}

.pagination-numbers {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin: 0 var(--spacing-sm);
}

.pagination-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: all 0.2s ease;
  cursor: pointer;
}

.pagination-number:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-color: var(--color-accent);
  text-decoration: none;
  transform: translateY(-1px);
}

.pagination-number.current {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  border-color: var(--color-accent);
  cursor: default;
  transform: none;
  box-shadow: var(--shadow-sm);
}

.pagination-ellipsis {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: var(--font-size-sm);
  padding: 0 var(--spacing-xs);
}

.pagination-info {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
  margin-top: var(--spacing-sm);
}

/* Empty Timemachine */
.empty-timemachine {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
  color: var(--color-text-muted);
  background-color: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
  border: 2px dashed var(--color-border);
}

.empty-timemachine .empty-icon {
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-timemachine h3 {
  color: var(--color-text-secondary);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.empty-timemachine p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* ===== TIMEMACHINE RESPONSIVE STYLES ===== */
@media (max-width: 768px) {
  .timemachine-page .page-title {
    font-size: 2rem;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
  
  .timemachine-publisher {
    padding: var(--spacing-md);
  }
  
  .publisher-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-md);
  }
  
  .publisher-tips {
    justify-content: center;
    order: 2;
  }
  
  .publish-btn {
    order: 1;
    justify-content: center;
  }
  
  .timemachine-item {
    padding: var(--spacing-md);
  }
  
  .timemachine-meta {
    gap: var(--spacing-xs);
  }
  
  .author-avatar {
    width: 36px;
    height: 36px;
  }
  
  .timemachine-actions {
    justify-content: center;
  }
  
  .load-more-btn {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 480px) {
  .timemachine-page .page-title {
    font-size: 1.75rem;
  }
  
  .timemachine-stats .stats-item {
    font-size: var(--font-size-xs);
    padding: 6px var(--spacing-xs);
  }
  
  .timemachine-publisher {
    padding: var(--spacing-sm);
  }
  
  .publisher-header h3 {
    font-size: 1.125rem;
  }
  
  .timemachine-form textarea {
    padding: var(--spacing-sm);
    min-height: 100px;
  }
  
  .tip-item {
    font-size: 11px;
  }
  
  .publish-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
  
  .timemachine-item {
    padding: var(--spacing-sm);
  }
  
  .timemachine-text {
    font-size: var(--font-size-sm);
  }
  
  .author-name {
    font-size: var(--font-size-sm);
  }
  
  .publish-time {
    font-size: var(--font-size-xs);
  }
  
  .action-time {
    font-size: 11px;
  }
  
  /* 小屏分页导航 */
  .pagination-btn {
    min-width: 70px;
    padding: 6px var(--spacing-xs);
    font-size: 11px;
  }
  
  .pagination-number {
    width: 32px;
    height: 32px;
    font-size: 11px;
  }
  
  .pagination-ellipsis {
    font-size: 11px;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .sidebar,
  .site-header,
  .site-footer,
  .post-navigation,
  .comments-section,
  .timemachine-publisher,
  .timemachine-pagination {
    display: none;
  }
  
  .main-wrapper {
    grid-template-columns: 1fr;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .post-title {
    color: black;
  }
  
  .timemachine-item {
    background: white;
    border: 1px solid #ddd;
    break-inside: avoid;
    margin-bottom: 20px;
  }
  
  .timemachine-text {
    color: black;
  }
}

/* ===== TIMEMACHINE DEBUGGING STYLES ===== */
.comment-closed-notice {
  background-color: var(--color-bg-secondary);
  border: 2px dashed var(--color-accent);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
  text-align: center;
}

.comment-closed-notice p {
  color: var(--color-text-secondary);
  margin: 0;
  font-size: var(--font-size-sm);
}

/* 确保隐藏的评论组件完全不可见且不影响布局 */
.hidden-comments {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
  overflow: hidden !important;
}

/* ===== TIMEMACHINE NEW FEATURES STYLES ===== */

/* 一键到底部按钮 */
.go-to-publisher-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  color: var(--color-bg-primary);
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
  margin-left: var(--spacing-sm);
}

.go-to-publisher-btn:hover {
  background: linear-gradient(135deg, var(--color-accent-hover) 0%, var(--color-accent) 100%);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  color: var(--color-bg-primary);
}

.go-to-publisher-btn:active {
  transform: translateY(0);
}

/* 设置按钮 */
.publisher-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-lg);
}

.publisher-header .settings-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.publisher-header .settings-btn:hover {
  background-color: var(--color-bg-primary);
  border-color: var(--color-accent);
  color: var(--color-text-secondary);
}

/* 设置Modal样式 */
.settings-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.modal-header h3 {
  margin: 0;
  color: var(--color-text-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  border-radius: var(--border-radius-sm);
  transition: all 0.2s ease;
}

.modal-close:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.form-group input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  box-sizing: border-box;
  transition: all 0.2s ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-bg-primary);
  box-shadow: 0 0 0 3px rgba(217, 159, 0, 0.1);
}

.form-group input[readonly] {
  background-color: var(--color-bg-tertiary);
  cursor: not-allowed;
  opacity: 0.7;
}

.form-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.form-actions button {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  font-weight: 500;
  font-size: var(--font-size-base);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.btn-primary {
  background: linear-gradient(135deg, #007cba 0%, #005a87 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #005a87 0%, #007cba 100%);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-success {
  background: linear-gradient(135deg, #46b450 0%, #2e7d32 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-success:hover {
  background: linear-gradient(135deg, #2e7d32 0%, #46b450 100%);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.form-actions button:active {
  transform: translateY(0);
}

.form-actions button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* 上传进度样式 */
.upload-progress {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  display: none;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-bg-secondary);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  width: 100%;
  border-radius: 3px;
  animation: progress-animation 1.5s ease-in-out infinite;
}

@keyframes progress-animation {
  0% { transform: translateX(-100%); }
  50% { transform: translateX(0%); }
  100% { transform: translateX(100%); }
}

.progress-text {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* 图片样式增强 */
.timemachine-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
  margin: var(--spacing-sm) 0;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  cursor: pointer;
}

.timemachine-image:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

/* 代码块样式增强 */
.timemachine-text pre {
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin: var(--spacing-sm) 0;
  overflow-x: auto;
  font-family: var(--font-family-code);
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.timemachine-text pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  color: var(--color-text-primary);
}

/* 响应式适配 */
@media (max-width: 768px) {
  .publisher-header {
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
  }
  
  .publisher-header .settings-btn {
    align-self: flex-end;
  }
  
  .modal-content {
    width: 95%;
    margin: var(--spacing-sm);
  }
  
  .modal-header {
    padding: var(--spacing-md);
  }
  
  .modal-body {
    padding: var(--spacing-md);
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .form-actions button {
    width: 100%;
  }
  
  .go-to-publisher-btn {
    margin-left: 0;
    margin-top: var(--spacing-xs);
  }
  
  .timemachine-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .publisher-header h3 {
    font-size: 1.125rem;
  }
  
  .publisher-header p {
    font-size: var(--font-size-xs);
  }
  
  .settings-btn {
    font-size: 11px;
    padding: 4px var(--spacing-xs);
  }
  
  .modal-header h3 {
    font-size: 1.125rem;
  }
  
  .form-group label {
    font-size: var(--font-size-xs);
  }
  
  .form-group input {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
  }
  
  .form-actions button {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
  }
  
  .go-to-publisher-btn {
    font-size: var(--font-size-xs);
    padding: 6px var(--spacing-xs);
  }
}

/* 暗色模式适配 */
@media (prefers-color-scheme: dark) {
  .modal-overlay {
    background: rgba(0, 0, 0, 0.8);
  }
  
  .progress-bar {
    background: rgba(255, 255, 255, 0.1);
  }
  
  .timemachine-image {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }
  
  .timemachine-image:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  }
}

/* 加载动画增强 */
.loading-icon {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 辅助功能增强 */
.settings-btn:focus,
.go-to-publisher-btn:focus,
.modal-close:focus,
.form-actions button:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* 打印样式适配 */
@media print {
  .settings-modal,
  .go-to-publisher-btn,
  .settings-btn,
  .upload-progress {
    display: none !important;
  }
  
  .timemachine-image {
    max-width: 100%;
    break-inside: avoid;
  }
}