:root {
  --page-bg: #f7f8fa;
  --paper: #ffffff;
  --paper-strong: #ffffff;
  --ink-900: #111827;
  --ink-700: #374151;
  --ink-500: #6b7280;
  --line: #e5e7eb;
  --line-strong: #d1d5db;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.06);
  --shadow-hard: 0 18px 42px rgba(15, 23, 42, 0.08);
  --layout-width: 1400px;
  --reading-width: 54rem;
  --toc-width: 300px;
  --display-font: "Source Serif 4", "Noto Serif SC", "Songti SC", "STSong", serif;
  --body-font: "Source Serif 4", "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans-font: "Source Sans 3", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono-font: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --text-xs: 0.72rem;
  --text-sm: 0.82rem;
  --text-base: 1rem;
  --text-md: 1.06rem;
  --article-text: 1.125rem;
  --article-code: 0.92rem;
  --text-lg: 1.2rem;
  --text-xl: 1.45rem;
  --text-2xl: 1.8rem;
  --selection-bg: rgba(37, 99, 235, 0.18);
  --selection-ink: #0b1020;
  --blockquote-border: #93c5fd;
  --blockquote-bg: #f8fafc;
  --code-bg: #eff6ff;
  --code-ink: #1d4ed8;
}

:root[data-theme="dark"] {
  --page-bg: #0b1020;
  --paper: #111827;
  --paper-strong: #151f2e;
  --ink-900: #f1f5f9;
  --ink-700: #cbd5e1;
  --ink-500: #94a3b8;
  --line: #253247;
  --line-strong: #334155;
  --accent: #5eead4;
  --accent-soft: rgba(94, 234, 212, 0.15);
  --shadow-soft: 0 10px 24px rgba(0, 0, 0, 0.22);
  --shadow-hard: 0 18px 42px rgba(0, 0, 0, 0.28);
  --selection-bg: rgba(94, 234, 212, 0.22);
  --selection-ink: #f8fafc;
  --blockquote-border: #2dd4bf;
  --blockquote-bg: #132334;
  --code-bg: #172033;
  --code-ink: #bae6fd;
}

* {
  box-sizing: border-box;
}

*::selection {
  background: var(--selection-bg);
  color: var(--selection-ink);
}

html {
  font-size: 17.5px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink-700);
  font-family: var(--body-font);
  font-size: var(--text-base);
  line-height: 1.8;
  font-kerning: normal;
  font-optical-sizing: auto;
  text-rendering: optimizeLegibility;
  background: var(--page-bg);
  transition: background-color 520ms cubic-bezier(0.22, 0.61, 0.36, 1), color 520ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.reading-progress {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  background: var(--page-bg);
  transition: opacity 240ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

html.is-page-transition-preload body::after,
body.is-page-leaving::after {
  opacity: 1;
}

html.is-page-transition-lock body {
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  body {
    transition: none;
  }

  body::after {
    transition: none;
  }
}

a {
  color: var(--ink-900);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent);
  transition: color 220ms ease, text-decoration-color 220ms ease;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

@media (max-width: 720px) {
  html {
    font-size: 16px;
  }
}

.layout {
  min-height: 100vh;
  position: relative;
  overflow-x: clip;
}

.layout__scene {
  position: relative;
  width: min(var(--layout-width), calc(100vw - 40px));
  margin: 0 auto;
}

.layout__main {
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, var(--toc-width));
  gap: 30px;
  align-items: start;
  padding: 30px 0 44px;
}

.layout__content {
  position: relative;
  min-width: 0;
  padding: clamp(1.5rem, 3vw, 2.6rem);
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  box-shadow: var(--shadow-hard);
  transition: background-color 520ms cubic-bezier(0.22, 0.61, 0.36, 1), border-color 520ms cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 520ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.header {
  min-width: 0;
  margin-bottom: 1.35rem;
  padding-bottom: 1.35rem;
  border-bottom: 3px double var(--line-strong);
}

.header__utility {
  min-height: 2.3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header__eyebrow {
  margin: 0;
  color: var(--ink-500);
  font-family: var(--sans-font);
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.edition-toggle {
  display: inline-flex;
  align-items: stretch;
  min-height: 2.15rem;
  padding: 0.12rem 0;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink-700);
  background: transparent;
  cursor: pointer;
  font-family: var(--sans-font);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: border-color 220ms ease, color 220ms ease;
}

.edition-toggle__options {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
}

.edition-toggle__options span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.35rem;
  padding: 0.46rem 0.56rem 0.42rem;
  transition: color 220ms ease, box-shadow 220ms ease;
}

.edition-toggle__options span + span {
  margin-left: 0.1rem;
}

.edition-toggle[data-active-theme="light"] [data-theme-option="light"],
.edition-toggle[data-active-theme="dark"] [data-theme-option="dark"] {
  color: var(--accent);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.edition-toggle:hover,
.edition-toggle:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.edition-toggle:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

.header__title {
  max-width: 100%;
  margin: 0;
  color: var(--ink-900);
  font-family: var(--display-font);
  font-size: clamp(2.8rem, 4.6vw, 3.5rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.header__line {
  margin-top: 1.1rem;
  display: block;
}

.header__nav {
  margin-top: 1.05rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.78rem;
  justify-content: flex-end;
}

.header__nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.15rem;
  padding: 0.24rem 0.18rem;
  text-decoration: none;
  color: var(--ink-700);
  font-family: var(--sans-font);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: color 220ms ease, text-shadow 220ms ease;
}

.header__nav-link::before {
  content: "[";
  margin-right: 0.08rem;
}

.header__nav-link::after {
  content: "]";
  margin-left: 0.08rem;
}

.header__nav-link:hover,
.header__nav-link--active {
  color: var(--accent);
  text-shadow: 0 0 0 currentColor;
}

.layout__article {
  margin-top: 1rem;
  word-break: break-word;
  overflow-wrap: anywhere;
}

@media (max-width: 980px) {
  .layout__main {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px 0 30px;
  }

  .layout__content {
    box-shadow: var(--shadow-soft);
  }
}

@media (max-width: 720px) {
  .layout__scene {
    width: calc(100% - 20px);
    max-width: var(--layout-width);
  }

  .layout__content {
    width: 100%;
    max-width: 100%;
    padding: 1.25rem 1rem;
  }

  .header__line {
    margin-top: 0.9rem;
  }

  .header__nav {
    margin-top: 0.78rem;
    gap: 0.28rem 0.5rem;
    justify-content: flex-start;
  }

  .header__title {
    font-size: clamp(2rem, 10vw, 2.85rem);
    word-break: break-all;
  }

  .header__nav-link {
    min-height: 2.2rem;
    padding: 0.28rem 0.18rem;
    font-size: 1rem;
  }

}


.header__tools {
  margin-top: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
}

.header__nav {
  margin-top: 0;
}

.header-search {
  position: relative;
  flex: 0 1 12rem;
  font-family: var(--sans-font);
}

.header-search__input {
  width: 100%;
  padding: 0.35rem 0.2rem;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink-700);
  background: transparent;
  outline: 0;
  transition: border-color 180ms ease;
}

.header-search__input:focus {
  border-color: var(--accent);
}

.header-search__panel {
  position: absolute;
  z-index: 20;
  top: calc(100% + 0.45rem);
  right: 0;
  width: min(24rem, calc(100vw - 2rem));
  max-height: 22rem;
  padding: 0.75rem;
  overflow-y: auto;
  border: 1px solid var(--line);
  background: var(--paper-strong);
  box-shadow: var(--shadow-soft);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-0.25rem);
  transition: opacity 150ms ease, transform 150ms ease, visibility 150ms;
}

.header-search.is-open .header-search__panel {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.header-search__status {
  margin: 0 0 0.4rem;
  color: var(--ink-500);
  font-size: var(--text-sm);
}

.header-search__results {
  display: grid;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.header-search__results a {
  display: block;
  padding: 0.3rem 0;
  text-decoration: none;
}

@media (max-width: 720px) {
  .header__tools {
    align-items: stretch;
    flex-direction: column;
    gap: 0.5rem;
  }

  .header-search {
    flex-basis: auto;
    width: 100%;
  }

  .header-search__panel {
    right: auto;
    left: 0;
    width: 100%;
  }
}

.layout__sidebar {
  min-width: 0;
  align-self: start;
  position: sticky;
  top: 20px;
}

.toc-panel {
  max-height: calc(100vh - 40px);
  overflow: auto;
  -ms-overflow-style: none;
  scrollbar-width: none;
  padding: 1rem 0.8rem 1.1rem;
  border: 1px solid var(--line);
  border-top: 3px double var(--line-strong);
  border-radius: 4px;
  background: var(--paper-strong);
  box-shadow: var(--shadow-soft);
  transition: background-color 520ms cubic-bezier(0.22, 0.61, 0.36, 1), border-color 520ms cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 520ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.toc-panel::-webkit-scrollbar {
  width: 0;
  height: 0;
  display: none;
}

.toc-panel__title {
  margin: 0 0 0.8rem;
  padding: 0 0.35rem 0.65rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink-900);
  font-family: var(--sans-font);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .layout__sidebar {
    order: -1;
    position: static;
  }

  .toc-panel {
    max-height: none;
  }
}

.toc__empty {
  margin: 0;
  color: var(--ink-500);
  font-size: var(--text-sm);
}

.toc,
.toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc {
  --toc-item-radius: 2px;
  --toc-guide: rgba(148, 163, 184, 0.32);
  --toc-hover-bg: rgba(148, 163, 184, 0.11);
  --toc-active-bg: var(--accent-soft);
  --toc-active-line: var(--accent);
}

.toc__list {
  display: grid;
  gap: 0.08rem;
}

.toc__folder > .toc__list {
  position: relative;
  margin: 0.08rem 0 0.12rem 0.72rem;
  padding-left: 0.62rem;
}

.toc__folder > .toc__list::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.24rem;
  bottom: 0.26rem;
  width: 1px;
  background: var(--toc-guide);
}

.toc__item {
  margin: 0;
  min-width: 0;
}

.toc__summary,
.toc__link {
  position: relative;
  display: block;
  min-width: 0;
  border-radius: var(--toc-item-radius);
  color: var(--ink-500);
  font-family: var(--sans-font);
  font-size: 0.88rem;
  line-height: 1.5;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color 180ms ease, background-color 180ms ease;
}

.toc__link {
  padding: 0.15rem 0.44rem 0.15rem 0.72rem;
}

.toc__summary {
  list-style: none;
  cursor: pointer;
  padding: 0.15rem 1.25rem 0.15rem 0.72rem;
}

.toc__summary::-webkit-details-marker {
  display: none;
}

.toc__summary::marker {
  content: "";
}

.toc__summary::after {
  content: "";
  position: absolute;
  right: 0.56rem;
  top: 50%;
  width: 0.38rem;
  height: 0.38rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  opacity: 0.62;
  transform: translateY(-55%) rotate(-45deg);
  transition: transform 160ms ease, opacity 160ms ease;
}

.toc__folder[open] > .toc__summary::after {
  transform: translateY(-65%) rotate(45deg);
}

.toc__summary::before,
.toc__link::before {
  content: "";
  position: absolute;
  left: 0.34rem;
  top: 0.42rem;
  bottom: 0.42rem;
  width: 2px;
  border-radius: 999px;
  background: var(--toc-active-line);
  opacity: 0;
  transition: opacity 180ms ease;
}

.toc__item--level-1 > .toc__folder > .toc__summary,
.toc__item--level-1 > .toc__link {
  color: var(--ink-700);
  font-size: 0.94rem;
  font-weight: 600;
}

.toc__item--level-3 .toc__summary,
.toc__item--level-3 .toc__link,
.toc__item--level-4 .toc__summary,
.toc__item--level-4 .toc__link {
  font-size: var(--text-sm);
}

.toc__summary:hover,
.toc__summary.is-active,
.toc__link:hover,
.toc__link.is-active {
  color: var(--ink-900);
  background: var(--toc-hover-bg);
}

.toc__summary.is-active,
.toc__link.is-active {
  background: var(--toc-active-bg);
}

.toc__summary.is-active::before,
.toc__link.is-active::before {
  opacity: 1;
}

:root[data-theme="dark"] .toc {
  --toc-guide: rgba(148, 163, 184, 0.24);
  --toc-hover-bg: rgba(148, 163, 184, 0.14);
  --toc-active-bg: var(--accent-soft);
}

.site-footer {
  margin-top: 1.6rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--line);
  color: var(--ink-500);
  font-family: var(--mono-font);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.markdown-content {
  width: 100%;
  max-width: var(--reading-width);
  margin-right: auto;
  margin-left: auto;
  font-size: var(--article-text);
  line-height: 1.9;
}

.markdown-content .post-meta__item {
  font-size: 0.78rem;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  color: var(--ink-900);
  font-family: var(--display-font);
  font-weight: 600;
  line-height: 1.22;
  margin: 1.45em 0 0.52em;
  letter-spacing: -0.015em;
  scroll-margin-top: 28px;
}

.markdown-content h1 {
  font-size: var(--text-2xl);
}

.markdown-content h2 {
  font-size: var(--text-xl);
  padding-top: 0.25rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--line);
}

.markdown-content h3 {
  font-size: var(--text-lg);
}

.markdown-content h4 {
  font-size: var(--text-md);
}

.markdown-content p,
.markdown-content ul,
.markdown-content ol,
.markdown-content blockquote,
.markdown-content table,
.markdown-content pre,
.markdown-content figure {
  margin: 0.85rem 0 1.1rem;
}

.markdown-content ul,
.markdown-content ol {
  padding-left: 1.42rem;
}

.markdown-content p + p {
  text-indent: 0;
}

.markdown-content blockquote {
  margin-left: 0;
  padding: 0.8rem 1rem;
  border-left: 2px solid var(--blockquote-border);
  color: var(--ink-700);
  background: var(--blockquote-bg);
}

.markdown-content pre {
  overflow-x: auto;
  padding: 0.95rem 1rem;
  border: 1px solid #2c302d;
  border-radius: 4px;
  background: #171a18;
  font-size: var(--article-code);
  line-height: 1.7;
}

.markdown-content .code-block {
  position: relative;
  padding-top: 2.15rem;
}

.markdown-content .code-block[data-language]::before {
  content: attr(data-language);
  position: absolute;
  top: 0.58rem;
  left: 0.75rem;
  color: #c0c7d2;
  font-family: var(--mono-font);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.markdown-content .code-copy {
  position: absolute;
  top: 0.38rem;
  right: 0.5rem;
  padding: 0.18rem 0.42rem;
  border: 1px solid #374151;
  border-radius: 3px;
  color: #c0c7d2;
  background: transparent;
  cursor: pointer;
  font-family: var(--sans-font);
  font-size: 0.66rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.markdown-content .code-copy:hover,
.markdown-content .code-copy:focus-visible {
  border-color: #64748b;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.markdown-content .code-copy:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

.markdown-content code {
  font-family: var(--mono-font);
  font-size: 0.88em;
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 0.08rem 0.28rem;
  border-radius: 4px;
}

.markdown-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.markdown-content .hljs {
  color: #d4d4d4;
}

.markdown-content .hljs-comment,
.markdown-content .hljs-quote {
  color: #6a9955;
}

.markdown-content .hljs-keyword,
.markdown-content .hljs-selector-tag,
.markdown-content .hljs-literal,
.markdown-content .hljs-name {
  color: #c586c0;
}

.markdown-content .hljs-string,
.markdown-content .hljs-attr,
.markdown-content .hljs-addition,
.markdown-content .hljs-template-tag {
  color: #ce9178;
}

.markdown-content .hljs-number,
.markdown-content .hljs-built_in,
.markdown-content .hljs-title,
.markdown-content .hljs-type,
.markdown-content .hljs-params {
  color: #4fc1ff;
}

.markdown-content .hljs-function,
.markdown-content .hljs-section,
.markdown-content .hljs-selector-id {
  color: #dcdcaa;
}

.markdown-content table {
  width: 100%;
  border-collapse: collapse;
}

.markdown-content th,
.markdown-content td {
  padding: 0.52rem 0.62rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.markdown-content th {
  color: var(--ink-900);
  font-family: var(--sans-font);
  font-size: 0.9em;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.markdown-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0.3rem auto;
  border-radius: 8px;
}

.markdown-content hr {
  border: 0;
  border-top: 3px double var(--line-strong);
  margin: 1.7rem 0;
}

.article-lock {
  margin: 1.4rem 0 1.7rem;
}

.article-lock__panel {
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-top: 3px double var(--line-strong);
  border-radius: 4px;
  background: var(--paper-strong);
}

.article-lock__eyebrow {
  margin: 0 0 0.35rem;
  color: var(--ink-500);
  font-family: var(--mono-font);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-lock__title {
  margin: 0 0 0.95rem;
  font-size: var(--text-xl);
}

.article-lock__form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.article-lock__input,
.article-lock__button {
  min-height: 2.55rem;
  border-radius: 3px;
  font-family: var(--sans-font);
}

.article-lock__input {
  flex: 1 1 13rem;
  min-width: 0;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line-strong);
  color: var(--ink-900);
  background: var(--paper);
}

.article-lock__button {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--ink-900);
  color: var(--paper);
  background: var(--ink-900);
  cursor: pointer;
}

.article-lock__message {
  min-height: 1.4rem;
  margin: 0.65rem 0 0;
  color: var(--accent);
  font-family: var(--sans-font);
  font-size: var(--text-sm);
}

.katex-display {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 0.5rem;
  scrollbar-gutter: stable both-edges;
}

.markdown-content .katex-display > .katex {
  display: inline-block;
  min-width: max-content;
}

.markdown-content .katex-display .tag {
  display: none;
}

.markdown-content .katex {
  text-indent: 0;
}

.markdown-content .katex .katex-mathml {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  white-space: nowrap;
}

@media (max-width: 720px) {
  .markdown-content {
    font-size: 1.06rem;
    line-height: 1.86;
  }

  .markdown-content pre {
    font-size: 0.86rem;
  }
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.5rem;
  margin-top: 0.48rem;
}

.post-meta__item {
  display: inline-flex;
  align-items: center;
  color: var(--ink-500);
  text-decoration: none;
  font-family: var(--mono-font);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
}

.post-meta__item--date {
  color: var(--ink-700);
}

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

.pager {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 3px double var(--line-strong);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
}

.pager__link {
  color: var(--ink-900);
  font-family: var(--sans-font);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.pager__link--prev {
  justify-self: start;
}

.pager__link--home {
  justify-self: center;
}

.pager__link--next {
  justify-self: end;
}

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

.pager__link--disabled {
  color: var(--line-strong);
  cursor: default;
  pointer-events: none;
}

@media (max-width: 720px) {
  .pager {
    grid-template-columns: 1fr;
    gap: 0.38rem;
  }

  .pager__link--prev,
  .pager__link--home,
  .pager__link--next {
    justify-self: start;
  }
}

.home-page {
  display: grid;
  gap: 2.4rem;
}

.home-section-title {
  margin: 0;
  color: var(--ink-900);
  font-family: var(--display-font);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.home-intro {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.home-intro__copy {
  width: 100%;
  max-width: var(--reading-width);
  margin-right: auto;
  margin-left: auto;
  color: var(--ink-700);
  font-size: var(--article-text);
  line-height: 1.9;
}

.home-intro__copy p {
  margin: 0.85rem 0 1.1rem;
}

.home-intro__copy p + p {
  text-indent: 0;
}

.home-intro__stats {
  width: 100%;
  max-width: var(--reading-width);
  margin: 1.2rem auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.15rem;
  color: var(--ink-500);
  font-family: var(--mono-font);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.home-intro__stats strong {
  color: var(--ink-900);
  font-weight: 500;
}

.archive__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.9rem;
  border-bottom: 3px double var(--line-strong);
}

.archive__header > span {
  color: var(--ink-500);
  font-family: var(--mono-font);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.archive__empty {
  color: var(--ink-500);
  font-style: italic;
}

.archive-year {
  padding-top: 1.7rem;
}

.archive-year + .archive-year {
  margin-top: 1.4rem;
  border-top: 3px double var(--line-strong);
}

.archive-year__title {
  margin: 0;
  color: var(--ink-900);
  font-family: var(--mono-font);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.archive-month {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 1.2rem;
  align-items: start;
}

.archive-month__title {
  position: sticky;
  top: 1rem;
  margin: 0;
  color: var(--ink-500);
  font-family: var(--mono-font);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.03em;
}

.archive-month__title span {
  display: block;
  margin-top: 0.12rem;
  color: var(--line-strong);
  font-size: var(--text-xs);
}

.archive-posts {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.archive-post {
  padding: 0.95rem 0.15rem 1rem;
  border-bottom: 1px solid var(--line);
}

.archive-post__title {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0;
  color: var(--ink-900);
  font-family: var(--display-font);
  font-size: clamp(1.35rem, 2.1vw, 1.65rem);
  line-height: 1.32;
  text-decoration: none;
}

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

.archive-post .post-meta {
  margin-top: 0.28rem;
}

@media (max-width: 720px) {
  .home-page {
    gap: 1.8rem;
  }

  .home-section-title {
    font-size: 1.6rem;
  }

  .home-intro {
    padding-bottom: 1.35rem;
  }

  .home-intro__copy {
    font-size: 1.06rem;
    line-height: 1.86;
  }

  .archive-month {
    display: block;
    margin-top: 1.15rem;
  }

  .archive-month__title {
    position: static;
    margin-bottom: 0.42rem;
  }

  .archive-month__title span {
    display: inline;
    margin-left: 0.45rem;
  }

  .archive__header {
    align-items: flex-end;
  }

  .archive-post__title {
    font-size: clamp(1.25rem, 6vw, 1.48rem);
  }
}

.taxonomy-page {
  max-width: 56rem;
  margin-right: auto;
  margin-left: auto;
}

.tag,
.category {
  margin: 0;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.tag:first-child,
.category:first-child {
  border-top: 0;
}

.tag__name,
.category__name {
  margin: 0;
  color: var(--ink-900);
  font-family: var(--display-font);
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.3;
}

.tag__count,
.category__count {
  margin-left: 0.3rem;
  color: var(--ink-500);
  font-family: var(--mono-font);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
}

.tag__list,
.category__list {
  margin: 0.62rem 0 0;
  padding-left: 1.15rem;
}

.tag__list li,
.category__list li {
  margin: 0.2rem 0;
  font-size: var(--text-md);
  line-height: 1.65;
}

.category__children {
  margin-top: 0.65rem;
  padding-left: 1rem;
  border-left: 1px solid var(--line);
  display: grid;
  gap: 0.6rem;
}

.tags__empty,
.categories__empty {
  margin: 0;
  color: var(--ink-500);
  font-style: italic;
}

.not-found {
  padding: clamp(2rem, 8vw, 6rem) 0;
  text-align: center;
}

.not-found__code {
  margin: 0;
  color: var(--accent);
  font-family: var(--display-font);
  font-size: clamp(4rem, 14vw, 9rem);
  font-weight: 600;
  line-height: 1;
}