:root {
  --page: #f7f8f5;
  --surface: #ffffff;
  --text: #202523;
  --muted: #68716c;
  --line: #dfe4df;
  --accent: #0c7a66;
  --accent-dark: #075f50;
  --amber: #c9852b;
  --code: #1d2421;
  --code-text: #e8eee9;
  --inline-code: #a4433f;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(12, 122, 102, 0.25);
  outline-offset: 3px;
}

::selection {
  background: rgba(201, 133, 43, 0.24);
}

.shell {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  min-height: 68px;
  border-bottom: 1px solid rgba(223, 228, 223, 0.92);
  background: rgba(247, 248, 245, 0.94);
  backdrop-filter: blur(14px);
}

.site-header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 750;
  font-size: 18px;
}

.site-brand img {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
  font-weight: 650;
  color: var(--muted);
}

.site-nav a {
  position: relative;
  padding: 22px 0 20px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 160ms ease;
}

.site-nav a:hover {
  color: var(--text);
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-intro {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.site-intro-inner {
  min-height: 208px;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
}

.site-intro-avatar {
  width: 76px;
  height: 76px;
  border: 1px solid var(--line);
  border-radius: 50%;
  object-fit: cover;
}

.site-intro-copy h1 {
  margin: 2px 0 4px;
  font-size: 34px;
  line-height: 1.2;
}

.site-intro-copy > p:last-child {
  margin: 0;
  color: var(--muted);
}

.site-intro-eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 11px;
  line-height: 1.4;
  font-weight: 800;
}

.site-stats {
  display: flex;
  gap: 34px;
  margin: 0;
}

.site-stats div {
  min-width: 50px;
  text-align: right;
}

.site-stats dt {
  font-size: 22px;
  line-height: 1.2;
  font-weight: 750;
}

.site-stats dd {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.site-main {
  padding-top: 52px;
  padding-bottom: 84px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  gap: 64px;
  align-items: start;
}

.content-grid--focused {
  display: block;
}

.content-primary {
  min-width: 0;
}

.post-list {
  border-bottom: 1px solid var(--line);
}

.post-list-item {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 28px;
  padding: 30px 0 34px;
  border-top: 1px solid var(--line);
}

.post-list-body {
  min-width: 0;
}

.post-list-date {
  padding-top: 4px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.post-list-date span,
.post-list-date small {
  display: block;
}

.post-list-date span {
  font-size: 17px;
  font-weight: 750;
}

.post-list-date small {
  margin-top: 1px;
  color: var(--muted);
  font-size: 12px;
}

.post-list-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-bottom: 8px;
  color: var(--amber);
  font-size: 12px;
  font-weight: 750;
}

.post-list-categories a:hover,
.post-list-tags a:hover {
  color: var(--accent-dark);
}

.post-list-body h2 {
  margin: 0;
  font-size: 25px;
  line-height: 1.38;
  overflow-wrap: anywhere;
}

.post-list-body h2 a:hover {
  color: var(--accent);
}

.post-list-body > p {
  margin: 11px 0 0;
  color: var(--muted);
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.post-list-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-top: 16px;
}

.post-list-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  min-width: 0;
  color: #7a827e;
  font-size: 12px;
}

.post-list-read {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 13px;
  font-weight: 750;
}

.post-list-read span {
  display: inline-block;
  margin-left: 4px;
  transition: transform 160ms ease;
}

.post-list-read:hover span {
  transform: translateX(3px);
}

.site-sidebar {
  position: sticky;
  top: 96px;
}

.sidebar-section {
  padding: 20px 0 30px;
  border-top: 1px solid var(--line);
}

.sidebar-heading {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}

.sidebar-heading span {
  color: var(--amber);
  font-size: 10px;
  font-weight: 800;
}

.sidebar-heading h2 {
  margin: 0;
  font-size: 15px;
}

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

.category-list-child {
  margin: 5px 0 0;
  padding-left: 14px;
}

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

.category-list-item > a {
  display: inline-block;
  padding: 4px 0;
  color: var(--muted);
  font-size: 13px;
}

.category-list-item > a:hover {
  color: var(--accent);
}

.category-list-count {
  margin-left: 5px;
  color: #9ba29e;
  font-size: 11px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
}

.tag-cloud a {
  display: inline-block;
  padding: 3px 0;
  color: var(--muted);
  line-height: 1.35;
}

.tag-cloud a::before {
  content: "#";
  margin-right: 1px;
  color: var(--accent);
}

.tag-cloud a:hover {
  color: var(--text);
}

.sidebar-note p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
}

.sidebar-note .sidebar-signature {
  color: var(--accent);
}

.pagination {
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 7px;
}

.pagination .page-number,
.pagination .extend,
.pagination .space {
  min-width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
}

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

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

.pagination .extend {
  width: auto;
  padding: 0 12px;
  gap: 7px;
}

.page-heading {
  margin-bottom: 34px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.page-heading p {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 750;
}

.page-heading h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.archive-list {
  position: relative;
}

.archive-year {
  margin: 34px 0 12px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 800;
}

.archive-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 18px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.archive-row time {
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.archive-row h2 {
  margin: 0;
  font-size: 17px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.archive-row h2 a:hover {
  color: var(--accent);
}

.archive-row > span {
  color: var(--muted);
  font-size: 11px;
}

.site-main--article {
  width: min(calc(100% - 48px), 1360px);
}

.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 64px;
  align-items: start;
}

.post-detail {
  min-width: 0;
}

.post-layout--single {
  display: block;
}

.post-layout--single .post-detail {
  width: min(100%, 1120px);
  margin: 0 auto;
}

.post-header {
  margin-bottom: 48px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.post-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 9px;
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.post-kicker a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-title {
  margin: 0;
  font-size: 43px;
  line-height: 1.22;
  font-weight: 780;
  overflow-wrap: anywhere;
}

.post-reading-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.article-content {
  font-size: 16px;
  line-height: 1.85;
  overflow-wrap: anywhere;
}

.article-content > *:first-child {
  margin-top: 0;
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4 {
  line-height: 1.4;
  font-weight: 750;
  scroll-margin-top: 96px;
}

.article-content h1 {
  margin: 0 0 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 30px;
}

.article-content h2 {
  margin: 48px 0 20px;
  padding: 0 0 10px 14px;
  border-bottom: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  font-size: 24px;
}

.article-content h3 {
  margin: 34px 0 14px;
  font-size: 19px;
}

.article-content h4 {
  margin: 28px 0 12px;
  font-size: 16px;
}

.article-content p,
.article-content ul,
.article-content ol,
.article-content blockquote,
.article-content table,
.article-content figure {
  margin-top: 1em;
  margin-bottom: 1em;
}

.article-content ul,
.article-content ol {
  padding-left: 1.55em;
}

.article-content li {
  margin: 0.38em 0;
  padding-left: 0.16em;
}

.article-content li::marker {
  color: var(--accent);
  font-weight: 750;
}

.article-content li > ul,
.article-content li > ol {
  margin-top: 0.45em;
  margin-bottom: 0.45em;
}

.article-content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.article-content a:hover {
  color: var(--accent-dark);
}

.article-content blockquote {
  margin-left: 0;
  margin-right: 0;
  padding: 10px 18px;
  border-left: 3px solid var(--amber);
  background: #f1f4f0;
  color: var(--muted);
}

.article-content blockquote p {
  margin: 0;
}

.article-content code {
  padding: 0.12em 0.34em;
  border-radius: 4px;
  background: #f0eceb;
  color: var(--inline-code);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.88em;
}

.article-content pre,
.article-content .highlight {
  overflow: auto;
  border-radius: 6px;
  background: var(--code);
  color: var(--code-text);
}

.article-content pre {
  padding: 18px 20px;
}

.article-content pre code,
.article-content .highlight code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.article-content .highlight {
  margin: 1.4em 0;
}

.article-content .highlight table {
  width: 100%;
  margin: 0;
  border: 0;
}

.article-content .highlight td {
  padding: 0;
  border: 0;
}

.article-content .highlight .gutter {
  width: 44px;
  padding: 16px 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  color: #77817b;
  text-align: right;
  user-select: none;
}

.article-content .highlight .code {
  padding: 16px 18px;
}

.article-content .highlight pre {
  margin: 0;
  padding: 0;
  overflow: visible;
}

.article-content table:not(.highlight table) {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 15px;
}

.article-content th,
.article-content td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.article-content th {
  background: #eef2ee;
  font-weight: 750;
}

.article-content tbody tr:nth-child(even) {
  background: #fafbf9;
}

.article-content img {
  display: block;
  height: auto;
  margin: 28px auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.article-content figcaption {
  margin-top: -16px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.article-content kbd {
  padding: 2px 6px;
  border: 1px solid #cbd2cc;
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--surface);
  font-family: inherit;
  font-size: 0.84em;
}

.article-content hr {
  margin: 30px 0;
  border: 0;
  border-top: 1px dashed var(--line);
}

.article-content hr + h1,
.article-content hr + h2,
.article-content hr + h3 {
  margin-top: 0;
}

.post-toc {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 128px);
  overflow-y: auto;
  padding-left: 20px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.post-toc-title {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 12px;
  font-weight: 800;
}

.post-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.post-toc .toc-child {
  margin: 5px 0 5px 12px;
}

.post-toc .toc-link {
  display: block;
  padding: 4px 0;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

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

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 54px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.post-tags-label {
  color: var(--text);
  font-weight: 750;
}

.post-tags a::before {
  content: "#";
  color: var(--accent);
}

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

.post-navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.post-navigation-item {
  min-width: 0;
}

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

.post-navigation-item span,
.post-navigation-item strong {
  display: block;
}

.post-navigation-item span {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
}

.post-navigation-item strong {
  font-size: 14px;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.post-navigation-item:hover strong {
  color: var(--accent);
}

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

.site-footer-inner {
  min-height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 12px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 1100px) {
  .post-layout {
    display: block;
  }

  .post-detail {
    width: min(100%, 920px);
    margin: 0 auto;
  }

  .post-toc {
    display: none;
  }
}

@media (max-width: 900px) {
  .content-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 52px;
  }

  .site-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }

  .sidebar-section {
    min-width: 0;
  }
}

@media (max-width: 680px) {
  .shell {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .site-header-inner {
    min-height: 60px;
    align-items: flex-start;
    padding-top: 11px;
    padding-bottom: 9px;
  }

  .site-brand img {
    width: 34px;
    height: 34px;
  }

  .site-brand span {
    display: none;
  }

  .site-nav {
    gap: 15px;
    overflow-x: auto;
    font-size: 12px;
  }

  .site-nav a {
    flex: 0 0 auto;
    padding: 8px 0 10px;
  }

  .site-nav a::after {
    bottom: 5px;
  }

  .site-intro-inner {
    min-height: 176px;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 16px;
  }

  .site-intro-avatar {
    width: 58px;
    height: 58px;
  }

  .site-intro-copy h1 {
    font-size: 27px;
  }

  .site-intro-copy > p:last-child {
    font-size: 13px;
  }

  .site-stats {
    display: none;
  }

  .site-main {
    padding-top: 32px;
    padding-bottom: 56px;
  }

  .post-list-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding: 24px 0 28px;
  }

  .post-list-date {
    display: flex;
    gap: 5px;
    align-items: baseline;
  }

  .post-list-date span,
  .post-list-date small {
    display: inline;
    margin: 0;
  }

  .post-list-body h2 {
    font-size: 21px;
  }

  .post-list-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .site-sidebar {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .post-title {
    font-size: 31px;
  }

  .post-header {
    margin-bottom: 34px;
  }

  .article-content {
    font-size: 16px;
    line-height: 1.82;
  }

  .article-content h1 { font-size: 26px; }
  .article-content h2 { font-size: 22px; }
  .article-content h3 { font-size: 19px; }

  .article-content pre {
    padding: 15px 16px;
  }

  .article-content .highlight .gutter {
    display: none;
  }

  .article-content .highlight .code {
    padding: 15px 16px;
  }

  .article-content table:not(.highlight table) {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .archive-row {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 12px;
  }

  .archive-row > span {
    display: none;
  }

  .page-heading h1 {
    font-size: 28px;
  }

  .post-navigation {
    grid-template-columns: 1fr;
  }

  .post-navigation-item--next {
    text-align: left;
  }

  .site-footer-inner {
    min-height: 94px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
  }

  .pagination-label {
    display: none;
  }
}