:root {
  --bg: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-card: #ffffff;
  --bg-hover: #f0f1f3;
  --text: #2c3e50;
  --text-secondary: #5a6a7a;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: #eff6ff;
  --code-bg: #f1f5f9;
  --success: #10b981;
  --warning: #f59e0b;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.05);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --max-width: 800px;
  --header-height: 56px;
}

.dark {
  --bg: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --text: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #334155;
  --accent: #60a5fa;
  --accent-hover: #93bbfd;
  --accent-light: #1e3a5f;
  --code-bg: #1e293b;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.35);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background 0.3s, color 0.3s;
  min-height: 100vh;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  height: var(--header-height);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-link {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all 0.2s;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  background: var(--accent-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn-search,
.btn-theme {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 8px;
  font-size: 1.1rem;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
  color: var(--text);
}

.btn-search:hover,
.btn-theme:hover {
  background: var(--bg-hover);
}

.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 60px;
  min-height: calc(100vh - var(--header-height) - 80px);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-sep {
  color: var(--border);
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-link {
  color: var(--text-muted);
  font-size: 0.85rem;
}

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

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text);
}

/* Home */
.home-intro {
  margin-bottom: 32px;
  padding: 20px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  color: var(--text-secondary);
}

/* Post Cards */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.post-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.post-card-title {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

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

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

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.post-card-categories {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.category-pill-sm {
  padding: 2px 8px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 999px;
  font-size: 0.75rem;
  transition: background 0.2s;
}

.category-pill-sm:hover {
  background: var(--accent);
  color: #fff;
}

.post-card-excerpt {
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.post-card-readmore {
  font-size: 0.875rem;
  font-weight: 500;
}

/* Pagination */
.pagination {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.page-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.page-btn.current {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.page-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination-jump {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.page-jump-input {
  width: 48px;
  height: 32px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.85rem;
}

.page-jump-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
}

/* Single Post */
.post-single {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.post-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.post-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.post-categories {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.category-pill {
  padding: 3px 10px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 999px;
  font-size: 0.8rem;
  transition: background 0.2s;
}

.category-pill:hover {
  background: var(--accent);
  color: #fff;
}

.post-keywords {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.keyword-tag {
  padding: 2px 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Post Content */
.post-content {
  font-size: 1rem;
  line-height: 1.8;
}

.post-content h1 { font-size: 1.6rem; margin: 1.5em 0 0.6em; }
.post-content h2 { font-size: 1.35rem; margin: 1.4em 0 0.5em; padding-bottom: 0.3em; border-bottom: 1px solid var(--border); }
.post-content h3 { font-size: 1.15rem; margin: 1.2em 0 0.4em; }
.post-content h4 { font-size: 1.05rem; margin: 1em 0 0.3em; }

.post-content p {
  margin-bottom: 1em;
}

.post-content ul,
.post-content ol {
  margin-bottom: 1em;
  padding-left: 1.5em;
}

.post-content li {
  margin-bottom: 0.3em;
}

.post-content blockquote {
  margin: 1em 0;
  padding: 12px 20px;
  border-left: 4px solid var(--accent);
  background: var(--accent-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 1em 0;
}

.post-content code {
  font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", Menlo, Courier, monospace;
  font-size: 0.875em;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
}

.post-content pre {
  margin: 1em 0;
  padding: 16px 20px;
  background: var(--code-bg);
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.6;
  border: 1px solid var(--border);
}

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

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
}

.post-content th,
.post-content td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  text-align: left;
}

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

.post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

.post-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.post-footer {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.prev-post,
.next-post {
  flex: 1;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

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

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

.prev-post:hover,
.next-post:hover {
  background: var(--accent-light);
}

.nav-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.nav-title {
  display: block;
  font-size: 0.9rem;
  color: var(--text);
}

/* About */
.about-page {
  display: flex;
  justify-content: center;
  padding-top: 20px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  max-width: 520px;
  width: 100%;
}

.about-bio {
  color: var(--text);
  margin-bottom: 16px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* Archives */
.archives-page {
  padding-top: 8px;
}

.archive-year {
  margin-bottom: 36px;
}

.archive-year-title {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
}

.archive-count {
  font-size: 0.85rem;
  background: var(--accent);
  color: #fff;
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 500;
}

.archive-month-title {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 12px 0 8px;
  font-weight: 600;
}

.archive-list {
  list-style: none;
  padding: 0;
}

.archive-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
  font-size: 0.925rem;
  flex-wrap: wrap;
}

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

.archive-item time {
  color: var(--text-muted);
  font-size: 0.8rem;
  white-space: nowrap;
}

.archive-item a {
  color: var(--text);
}

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

.archive-item-cats {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

/* Books */
.books-page {
  padding-top: 8px;
}

.books-section {
  margin-bottom: 48px;
}

.books-section-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
}

.book-year {
  margin-bottom: 28px;
}

.book-year-title {
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.book-year-count {
  font-size: 0.8rem;
  background: var(--bg-secondary);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 999px;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.book-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: all 0.2s;
}

.book-card:hover {
  box-shadow: var(--shadow-md);
}

.book-card.collect {
  border-left: 3px solid var(--accent);
  background: var(--accent-light);
}

.book-card.neutral {
  border-left: 3px solid var(--border);
}

.book-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
}

.book-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.book-status {
  font-size: 0.85rem;
  white-space: nowrap;
}

.book-info {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  word-break: break-all;
}

/* Categories */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}

.category-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
  text-decoration: none;
}

.category-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.category-card-name {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.category-card-count {
  font-size: 0.8rem;
  background: var(--accent-light);
  color: var(--accent);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.category-term-page .page-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.category-term-count {
  font-size: 0.9rem;
  background: var(--bg-secondary);
  color: var(--text-muted);
  padding: 2px 12px;
  border-radius: 999px;
}

/* Links */
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 12px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
  text-decoration: none;
  min-height: 56px;
}

.link-card:hover {
  border-color: var(--accent);
  border-left-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateX(3px);
}

.link-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: all 0.2s;
}

.link-card:hover .link-card-icon {
  background: var(--accent);
  color: #fff;
}

.link-card-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
}

.link-card-name {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.link-card-arrow {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all 0.2s;
  flex-shrink: 0;
}

.link-card:hover .link-card-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

/* Tools */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
  text-decoration: none;
  min-height: 120px;
}

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

.tool-card-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}

.tool-card-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.tool-card-action {
  font-size: 0.8rem;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
}

.tool-card:hover .tool-card-action {
  opacity: 1;
}

/* Todo */
.todo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.todo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: all 0.2s;
}

.todo-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(2px);
}

.todo-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.todo-checkbox {
  font-size: 1.1rem;
  flex-shrink: 0;
}

.todo-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.todo-remark {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
  padding-left: 28px;
}

/* Search Overlay */
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  padding: 20px;
}

.search-overlay.active {
  display: flex;
  justify-content: center;
  padding-top: 10vh;
}

.search-modal {
  width: 100%;
  max-width: 560px;
  max-height: 80vh;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.search-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.search-input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

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

.search-close {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--text-muted);
  padding: 6px;
  border-radius: var(--radius-sm);
}

.search-close:hover {
  background: var(--bg-hover);
}

.search-results {
  overflow-y: auto;
  padding: 8px 0;
  flex: 1;
}

.search-hint {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 20px;
}

.search-result-item {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s;
}

.search-result-item:hover {
  background: var(--bg-hover);
}

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

.search-result-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.search-result-title mark {
  background: var(--warning);
  color: #000;
  padding: 1px 3px;
  border-radius: 2px;
}

.search-result-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.search-result-snippet {
  font-size: 0.825rem;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.search-result-snippet mark {
  background: var(--warning);
  color: #000;
  padding: 1px 2px;
  border-radius: 2px;
}

.search-no-results {
  text-align: center;
  color: var(--text-muted);
  padding: 30px 20px;
}

:target {
  scroll-margin-top: 70px;
}

@media (max-width: 768px) {
  .site-header {
    height: auto;
    position: relative;
  }
  .header-inner {
    flex-wrap: wrap;
    padding: 10px 14px;
    gap: 6px;
    justify-content: center;
  }
  .site-title {
    font-size: 1.05rem;
    order: 1;
    width: 100%;
    text-align: center;
  }
  .site-nav {
    order: 2;
    gap: 0;
    flex-wrap: wrap;
    justify-content: center;
  }
  .nav-link {
    padding: 5px 10px;
    font-size: 0.8rem;
  }
  .header-actions {
    order: 3;
    position: absolute;
    top: 8px;
    right: 12px;
  }
  .main-content {
    padding: 20px 14px 40px;
  }
  .post-single {
    padding: 18px 14px;
  }
  .post-title {
    font-size: 1.3rem;
  }
  .post-nav {
    flex-direction: column;
  }
  .post-card {
    padding: 16px;
  }
  .post-card-title {
    font-size: 1.1rem;
  }
  .category-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
  .link-grid {
    grid-template-columns: 1fr;
  }
  .link-card {
    padding: 14px 16px;
    gap: 10px;
  }
  .tool-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
  .tool-card {
    min-height: 100px;
    padding: 20px 14px;
  }
  .todo-grid {
    grid-template-columns: 1fr;
  }
  .book-grid {
    grid-template-columns: 1fr;
  }
  .about-card {
    padding: 28px;
  }
  .pagination-controls {
    gap: 2px;
  }
  .page-btn {
    min-width: 30px;
    height: 30px;
    font-size: 0.8rem;
    padding: 0 7px;
  }
  .pagination-jump {
    font-size: 0.8rem;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 6px;
  }
  .footer-left {
    flex-direction: column;
  }
  .footer-sep {
    display: none;
  }
  .search-modal {
    max-height: 85vh;
    margin: 0 8px;
  }
  .search-input {
    font-size: 0.9rem;
  }
  .page-title {
    font-size: 1.4rem;
  }
  .archive-year-title {
    font-size: 1.25rem;
  }
  .archive-item {
    font-size: 0.85rem;
    gap: 8px;
  }
  .archive-item time {
    font-size: 0.75rem;
  }
  .archive-item-cats {
    margin-left: 0;
    width: 100%;
    margin-top: 2px;
  }
  .books-section-title {
    font-size: 1.15rem;
  }
  .book-year-title {
    font-size: 1rem;
  }
  .category-term-page .page-title {
    font-size: 1.3rem;
  }
  .post-content {
    font-size: 0.925rem;
  }
  .post-content h1 { font-size: 1.35rem; }
  .post-content h2 { font-size: 1.15rem; }
  .post-content h3 { font-size: 1.05rem; }
}

@media (max-width: 400px) {
  .header-inner {
    padding: 8px 10px;
  }
  .nav-link {
    padding: 4px 7px;
    font-size: 0.75rem;
  }
  .main-content {
    padding: 14px 10px 30px;
  }
  .post-single {
    padding: 14px 12px;
  }
  .site-title {
    font-size: 0.95rem;
  }
  .search-modal {
    margin: 0 4px;
  }
  .category-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
  .tool-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
}

@media print {
  .site-header, .site-footer, .post-nav, .search-overlay {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
}