/* ============================================================
   吃土皮皮虎 · 页面层：首页 / 长图文（知乎式）/ 短图文（小红书式）
   ============================================================ */

/* ================================ 首页 Hero ================================ */
.hero {
  padding: 44px 0 34px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -140px;
  right: -80px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 68%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.hero h1 {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 10px;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero p {
  font-size: 15.5px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.75;
}
.hero-stats {
  display: flex;
  gap: 30px;
}
.hero-stat {
  text-align: right;
}
.hero-stat b {
  display: block;
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.5px;
  font-variant-numeric: tabular-nums;
}
.hero-stat span {
  font-size: 12.5px;
  color: var(--text-tertiary);
}

/* 双栏布局：主内容 + 侧栏 */
.layout-2col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 32px;
  align-items: start;
}
.sidebar {
  position: sticky;
  top: calc(var(--header-h) + 20px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.side-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
}
.side-card h3 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.side-card h3 svg {
  width: 15px;
  height: 15px;
  color: var(--accent);
}
.side-cat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all 0.15s var(--ease);
}
.side-cat:hover {
  background: var(--bg-subtle);
  color: var(--accent);
}
.side-cat b {
  font-weight: 500;
}
.side-cat span {
  font-size: 12px;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

/* ========================= 长图文列表（知乎式信息流） ========================= */
.article-list {
  display: flex;
  flex-direction: column;
}
.article-item {
  display: block;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: all 0.18s var(--ease);
}
.article-item:first-child {
  padding-top: 4px;
}
.article-item:hover .article-title {
  color: var(--link);
}
.article-item:hover .article-cover img {
  transform: scale(1.045);
}
.article-meta-top {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}
.article-cat {
  color: var(--accent);
  font-weight: 600;
}
.article-body {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.article-main {
  flex: 1;
  min-width: 0;
}
.article-title {
  font-size: 18.5px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
  transition: color 0.15s var(--ease);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-summary {
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.article-meta-bottom {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12.5px;
  color: var(--text-tertiary);
  flex-wrap: wrap;
}
.article-meta-bottom span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.article-meta-bottom svg {
  width: 13px;
  height: 13px;
}
.article-cover {
  width: 172px;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-subtle);
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease);
}
.pin-flag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--accent);
  font-weight: 600;
}

/* 分类筛选条 */
.filter-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 18px;
  scrollbar-width: none;
  border-bottom: 1px solid var(--border);
}
.filter-bar::-webkit-scrollbar {
  display: none;
}
.filter-chip {
  padding: 8px 15px;
  font-size: 14.5px;
  color: var(--text-secondary);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s var(--ease);
}
.filter-chip:hover {
  color: var(--text);
}
.filter-chip.active {
  color: var(--accent);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

/* ============================ 长图文详情（知乎阅读页） ============================ */
.reader {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 232px;
  gap: 40px;
  align-items: start;
  max-width: 1000px;
  margin: 0 auto;
}
.reader-main {
  min-width: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px 44px;
}
.reader-head {
  margin-bottom: 26px;
}
.reader-title {
  font-size: 27px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.7px;
  margin-bottom: 16px;
}
.reader-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-tertiary);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.reader-author {
  display: flex;
  align-items: center;
  gap: 8px;
}
.avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ff9a5c);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.reader-author b {
  font-size: 14px;
  color: var(--text);
  font-weight: 600;
}
.meta-dot::before {
  content: '·';
  margin-right: 12px;
}

/* -------- 正文排版 -------- */
.prose {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  letter-spacing: 0.1px;
}
.prose > *:first-child {
  margin-top: 0;
}
.prose p {
  margin: 1.05em 0;
}
.prose h2 {
  font-size: 21px;
  font-weight: 700;
  margin: 1.9em 0 0.75em;
  letter-spacing: -0.3px;
  padding-left: 12px;
  border-left: 3.5px solid var(--accent);
  line-height: 1.4;
}
.prose h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 1.6em 0 0.6em;
}
.prose h4 {
  font-size: 16.5px;
  font-weight: 700;
  margin: 1.4em 0 0.5em;
  color: var(--text-secondary);
}
.prose a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.15s var(--ease);
}
.prose a:hover {
  color: var(--link-hover);
  border-bottom-color: currentColor;
}
.prose strong {
  font-weight: 700;
}
.prose em {
  font-style: italic;
}
.prose ul,
.prose ol {
  margin: 1.05em 0;
  padding-left: 1.5em;
}
.prose ul {
  list-style: disc;
}
.prose ol {
  list-style: decimal;
}
.prose li {
  margin: 0.45em 0;
  padding-left: 0.25em;
}
.prose li::marker {
  color: var(--accent);
}
.prose ul ul,
.prose ol ol,
.prose ul ol,
.prose ol ul {
  margin: 0.4em 0;
}
.prose blockquote {
  margin: 1.4em 0;
  padding: 14px 18px;
  border-left: 3px solid var(--border-strong);
  background: var(--bg-subtle);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-secondary);
}
.prose blockquote p {
  margin: 0.4em 0;
}
.prose blockquote > *:first-child {
  margin-top: 0;
}
.prose blockquote > *:last-child {
  margin-bottom: 0;
}
.prose hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 2.2em 0;
}
.prose img,
.md-img {
  margin: 1.5em auto;
  border-radius: var(--radius);
  cursor: zoom-in;
  background: var(--bg-subtle);
  box-shadow: var(--shadow-sm);
  transition: opacity 0.2s var(--ease);
}
.prose img:hover {
  opacity: 0.92;
}
.prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-subtle);
  color: var(--accent);
  border: 1px solid var(--border);
}
.prose pre {
  margin: 1.4em 0;
  padding: 16px 18px;
  border-radius: var(--radius);
  background: #1a1c20;
  overflow-x: auto;
  line-height: 1.6;
}
.prose pre code {
  background: none;
  border: none;
  padding: 0;
  color: #e6e6e6;
  font-size: 13.5px;
}
.table-wrap {
  margin: 1.5em 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  -webkit-overflow-scrolling: touch;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 460px;
}
.prose th,
.prose td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.prose th {
  background: var(--bg-subtle);
  font-weight: 600;
  font-size: 13.5px;
  position: sticky;
  top: 0;
}
.prose tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--bg-subtle) 45%, transparent);
}
.prose tbody tr:hover {
  background: var(--bg-subtle);
}
.prose tbody tr:last-child td {
  border-bottom: none;
}
.heading-anchor {
  float: left;
  margin-left: -0.85em;
  padding-right: 0.25em;
  color: var(--text-tertiary);
  opacity: 0;
  border: none !important;
  font-weight: 400;
  transition: opacity 0.15s var(--ease);
}
.prose h2:hover .heading-anchor,
.prose h3:hover .heading-anchor,
.prose h4:hover .heading-anchor {
  opacity: 0.6;
}

/* 文末标签 / 上下篇 / 相关 */
.reader-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 34px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.reader-foot {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-tertiary);
}
.adjacent {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 24px;
}
.adjacent-item {
  padding: 15px 17px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  transition: all 0.18s var(--ease);
  min-width: 0;
}
.adjacent-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.adjacent-item small {
  font-size: 12px;
  color: var(--text-tertiary);
  display: block;
  margin-bottom: 6px;
}
.adjacent-item b {
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.adjacent-next {
  text-align: right;
}

/* -------- 侧边目录 TOC -------- */
.toc {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  max-height: calc(100vh - var(--header-h) - 60px);
  overflow-y: auto;
  padding-left: 18px;
  border-left: 1px solid var(--border);
  scrollbar-width: thin;
}
.toc-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-tertiary);
  letter-spacing: 0.6px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.toc-list {
  font-size: 13.5px;
}
.toc-list a {
  display: block;
  padding: 5px 0 5px 11px;
  color: var(--text-tertiary);
  line-height: 1.5;
  border-left: 2px solid transparent;
  margin-left: -19px;
  padding-left: 17px;
  transition: all 0.15s var(--ease);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.toc-list a:hover {
  color: var(--text);
}
.toc-list a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}
.toc-l3 a {
  padding-left: 29px;
  font-size: 13px;
}
.toc-l4 a {
  padding-left: 41px;
  font-size: 12.5px;
}

/* 移动端目录浮层 */
.toc-fab {
  display: none;
  position: fixed;
  right: 14px;
  bottom: 66px;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  place-items: center;
  box-shadow: 0 4px 14px rgba(244, 81, 30, 0.4);
  z-index: 90;
}
.toc-fab svg {
  width: 19px;
  height: 19px;
}
.toc-sheet {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
}
.toc-sheet.open {
  display: block;
}
.toc-sheet-mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  animation: fadeIn 0.2s var(--ease);
}
.toc-sheet-panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: 68vh;
  overflow-y: auto;
  background: var(--bg-elevated);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 18px 20px calc(24px + env(safe-area-inset-bottom));
  animation: sheetUp 0.26s var(--ease);
}
@keyframes sheetUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}
.toc-sheet-panel .toc-title {
  margin-bottom: 14px;
}
.toc-sheet-panel .toc-list a {
  padding: 9px 0 9px 12px;
  font-size: 14.5px;
  margin-left: 0;
}

/* ========================= 短图文瀑布流（小红书式） ========================= */
.masonry {
  columns: 5;
  column-gap: 14px;
}
.note-card {
  break-inside: avoid;
  margin-bottom: 14px;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  overflow: hidden;
  display: block;
  transition: all 0.22s var(--ease);
  border: 1px solid transparent;
}
.note-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}
.note-cover {
  position: relative;
  background: var(--bg-subtle);
  overflow: hidden;
  line-height: 0;
}
.note-cover img {
  width: 100%;
  transition: transform 0.5s var(--ease);
}
.note-card:hover .note-cover img {
  transform: scale(1.04);
}
.note-cover-ph {
  aspect-ratio: 3 / 4;
  display: grid;
  place-items: center;
  color: var(--text-tertiary);
  font-size: 12px;
  background: var(--bg-subtle);
}
.note-imgcount {
  position: absolute;
  top: 8px;
  right: 8px;
  height: 21px;
  padding: 0 8px;
  border-radius: 11px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 11.5px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  backdrop-filter: blur(6px);
}
.note-imgcount svg {
  width: 11px;
  height: 11px;
}
.note-info {
  padding: 10px 12px 12px;
}
.note-card-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.48;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 9px;
}
.note-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-tertiary);
}
.note-card-author {
  display: flex;
  align-items: center;
  gap: 5px;
  min-width: 0;
}
.note-card-author .avatar {
  width: 19px;
  height: 19px;
  font-size: 9px;
}
.note-card-author span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.note-card-views {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}
.note-card-views svg {
  width: 12px;
  height: 12px;
}

/* ========================== 短图文详情（小红书笔记页） ========================== */
.note-detail {
  max-width: 1080px;
  margin: 0 auto;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) 400px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.gallery {
  position: relative;
  background: #0c0c0e;
  display: flex;
  align-items: center;
  min-height: 420px;
}
.gallery-track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  width: 100%;
  height: 100%;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.gallery-track::-webkit-scrollbar {
  display: none;
}
.gallery-slide {
  flex: 0 0 100%;
  scroll-snap-align: center;
  display: grid;
  place-items: center;
  padding: 0;
  min-height: 420px;
  max-height: 74vh;
}
.gallery-slide img {
  max-width: 100%;
  max-height: 74vh;
  object-fit: contain;
  cursor: zoom-in;
}
.gallery-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: #333;
  display: grid;
  place-items: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transition: opacity 0.2s var(--ease);
  z-index: 2;
}
.gallery:hover .gallery-btn {
  opacity: 1;
}
.gallery-btn:disabled {
  opacity: 0 !important;
}
.gallery-btn svg {
  width: 17px;
  height: 17px;
}
.gallery-prev {
  left: 12px;
}
.gallery-next {
  right: 12px;
}
.gallery-dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  padding: 6px 10px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 12px;
  backdrop-filter: blur(6px);
  z-index: 2;
  max-width: 82%;
  overflow-x: auto;
  scrollbar-width: none;
}
.gallery-dots::-webkit-scrollbar {
  display: none;
}
.gallery-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  transition: all 0.2s var(--ease);
  flex-shrink: 0;
}
.gallery-dot.active {
  background: #fff;
  width: 16px;
  border-radius: 3px;
}
.gallery-counter {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 3px 10px;
  border-radius: 11px;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  font-size: 12px;
  backdrop-filter: blur(6px);
  z-index: 2;
  font-variant-numeric: tabular-nums;
}

.note-side {
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-height: 74vh;
}
.note-side-head {
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.note-side-head .avatar {
  width: 38px;
  height: 38px;
  font-size: 15px;
}
.note-side-head b {
  font-size: 14.5px;
  font-weight: 600;
  display: block;
}
.note-side-head small {
  font-size: 12px;
  color: var(--text-tertiary);
}
.note-side-body {
  padding: 20px 22px 24px;
  overflow-y: auto;
  flex: 1;
}
.note-detail-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 12px;
  letter-spacing: -0.2px;
}
.note-content {
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
  white-space: pre-wrap;
}
.note-content p {
  margin: 0.7em 0;
}
.note-content img {
  border-radius: var(--radius-sm);
  margin: 0.8em 0;
  cursor: zoom-in;
}
.note-content a {
  color: var(--link);
}
.note-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 16px;
}
.note-tag {
  color: var(--link);
  font-size: 14px;
}
.note-tag:hover {
  color: var(--accent);
}
.note-side-foot {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.note-side-foot span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.note-side-foot svg {
  width: 13px;
  height: 13px;
}

/* ============================== 其他页面 ============================== */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.cat-card {
  padding: 22px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.2s var(--ease);
}
.cat-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.cat-card b {
  font-size: 17px;
  font-weight: 700;
  display: block;
  margin-bottom: 6px;
}
.cat-card p {
  font-size: 13.5px;
  color: var(--text-tertiary);
  margin-bottom: 14px;
  min-height: 20px;
}
.cat-card em {
  font-style: normal;
  font-size: 12.5px;
  color: var(--accent);
  font-weight: 600;
}

.timeline {
  position: relative;
  padding-left: 22px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}
.timeline-group {
  margin-bottom: 30px;
}
.timeline-ym {
  position: relative;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}
.timeline-ym::before {
  content: '';
  position: absolute;
  left: -21px;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--bg);
}
.timeline-item {
  display: flex;
  gap: 14px;
  padding: 8px 0;
  font-size: 14.5px;
  align-items: baseline;
}
.timeline-item time {
  font-size: 12.5px;
  color: var(--text-tertiary);
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.timeline-item a {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.timeline-item a:hover {
  color: var(--accent);
}

.about-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px;
  max-width: 720px;
  margin: 0 auto;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 26px 0;
}
.about-stat {
  text-align: center;
  padding: 16px 10px;
  background: var(--bg-subtle);
  border-radius: var(--radius);
}
.about-stat b {
  display: block;
  font-size: 21px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.about-stat span {
  font-size: 12px;
  color: var(--text-tertiary);
}

.search-tabs {
  display: flex;
  gap: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}
.search-tab {
  padding: 10px 2px;
  font-size: 15px;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
}
.search-tab.active {
  color: var(--accent);
  font-weight: 600;
  border-bottom-color: var(--accent);
}
.search-panel {
  display: none;
}
.search-panel.active {
  display: block;
}

/* ================================ 响应式 ================================ */
@media (max-width: 1400px) {
  .masonry {
    columns: 4;
  }
}
@media (max-width: 1100px) {
  .layout-2col {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  .reader {
    grid-template-columns: minmax(0, 1fr);
    max-width: 760px;
  }
  .toc {
    display: none;
  }
  .toc-fab {
    display: grid;
  }
  .masonry {
    columns: 3;
  }
  .note-detail {
    grid-template-columns: 1fr;
    max-width: 620px;
  }
  .note-side {
    max-height: none;
  }
  .gallery-slide,
  .gallery {
    min-height: 300px;
  }
  .gallery-slide img {
    max-height: 62vh;
  }
  .gallery-btn {
    opacity: 1;
  }
}
@media (max-width: 860px) {
  .hero {
    padding: 30px 0 26px;
  }
  .hero h1 {
    font-size: 27px;
  }
  .hero-stats {
    gap: 22px;
  }
  .hero-stat b {
    font-size: 21px;
  }
  .reader-main {
    padding: 24px 20px 32px;
  }
  .reader-title {
    font-size: 22px;
  }
  .prose {
    font-size: 16px;
    line-height: 1.8;
  }
  .prose h2 {
    font-size: 19px;
  }
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 700px) {
  .masonry {
    columns: 2;
    column-gap: 10px;
  }
  .note-card {
    margin-bottom: 10px;
  }
  .article-cover {
    width: 112px;
    border-radius: 8px;
  }
  .article-title {
    font-size: 16.5px;
  }
  .article-summary {
    -webkit-line-clamp: 2;
    font-size: 13.5px;
  }
  .article-body {
    gap: 12px;
  }
  .adjacent {
    grid-template-columns: 1fr;
  }
  .adjacent-next {
    text-align: left;
  }
  .note-detail {
    border-radius: var(--radius);
  }
  .note-side-body {
    padding: 16px 16px 20px;
  }
  .note-side-head {
    padding: 14px 16px 12px;
  }
  .note-side-foot {
    padding: 12px 16px;
  }
  .hero-inner {
    align-items: flex-start;
  }
  .about-card {
    padding: 22px 18px;
  }
}
@media (max-width: 420px) {
  .article-cover {
    width: 96px;
  }
  .prose img {
    margin: 1.1em auto;
  }
}

/* --------------------------------- 分享栏 --------------------------------- */
.share-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
  padding: 14px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.share-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-right: 2px;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: all .15s ease;
}
.share-btn svg { width: 15px; height: 15px; }
.share-btn:hover {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.share-copied {
  font-size: 12.5px;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition: all .2s ease;
  pointer-events: none;
}
.share-copied.show {
  opacity: 1;
  transform: translateX(0);
}

/* ------------------------------ 微信分享弹层 ------------------------------ */
.share-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
  align-items: center;
  justify-content: center;
}
.share-modal.open { display: flex; }
.share-modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .5);
  backdrop-filter: blur(2px);
}
.share-modal-box {
  position: relative;
  z-index: 1;
  width: 280px;
  max-width: 86vw;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 22px 22px;
  text-align: center;
  animation: sharePop .22s ease;
}
@keyframes sharePop {
  from { opacity: 0; transform: scale(.92) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.share-modal-close {
  position: absolute;
  top: 8px;
  right: 12px;
  border: none;
  background: none;
  font-size: 24px;
  line-height: 1;
  color: var(--text-tertiary);
  cursor: pointer;
}
.share-modal-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary, #1f2329);
  margin-bottom: 14px;
}
.share-qr {
  width: 180px;
  height: 180px;
  margin: 0 auto 12px;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.share-qr img { width: 100%; height: 100%; display: block; }
.share-modal-url {
  font-size: 12px;
  color: var(--text-tertiary);
  word-break: break-all;
  margin-bottom: 14px;
  line-height: 1.5;
}

/* ------------------------------ 热门阅读榜单 ------------------------------ */
.hot-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.hot-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
}
.hot-item:last-child { border-bottom: none; }
.hot-rank {
  flex: 0 0 22px;
  height: 22px;
  line-height: 22px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-tertiary);
  background: var(--bg);
  border-radius: 6px;
}
.hot-rank.top {
  color: #fff;
  background: var(--accent);
}
.hot-link {
  flex: 1;
  min-width: 0;
  font-size: 13.5px;
  color: var(--text-primary, #1f2329);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hot-link:hover { color: var(--accent); }
.hot-views {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--text-tertiary);
}

@media (max-width: 600px) {
  .share-bar { gap: 6px; padding: 12px; }
  .share-btn { padding: 6px 10px; font-size: 12.5px; }
  .share-label { width: 100%; margin-bottom: 2px; }
}