:root {
  color-scheme: light;
  --arch-blue: #1793d1;
  --arch-blue-strong: #0878b3;
  --arch-blue-soft: #e8f5fc;
  --ink: #17212b;
  --ink-secondary: #566574;
  --ink-tertiary: #7b8996;
  --surface: #ffffff;
  --surface-soft: #f5f8fb;
  --surface-raised: #ffffff;
  --line: #dce5ec;
  --line-strong: #c9d7e1;
  --code-surface: #111b25;
  --code-ink: #e8f0f6;
  --selection: rgba(23, 147, 209, 0.2);
  --shadow-sm: 0 1px 2px rgba(17, 33, 45, 0.05);
  --shadow-md: 0 8px 24px rgba(27, 48, 63, 0.08);
  --header-height: 66px;
  --sidebar-width: 304px;
  --content-width: 880px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --arch-blue: #48b7ed;
  --arch-blue-strong: #75c9f2;
  --arch-blue-soft: rgba(72, 183, 237, 0.12);
  --ink: #e7edf2;
  --ink-secondary: #a8b6c2;
  --ink-tertiary: #7f909e;
  --surface: #0f171f;
  --surface-soft: #0b1118;
  --surface-raised: #0f171f;
  --line: #26343f;
  --line-strong: #344550;
  --code-surface: #070c11;
  --code-ink: #e6edf3;
  --selection: rgba(72, 183, 237, 0.25);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.24);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 22px);
  background: var(--surface-soft);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--surface-soft);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--selection);
}

button,
input {
  font: inherit;
}

.visually-hidden:not(:focus):not(:active) {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  border: 0 !important;
  white-space: nowrap !important;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: var(--arch-blue-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid rgba(23, 147, 209, 0.34);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 12px;
  padding: 9px 14px;
  color: #fff;
  background: var(--arch-blue-strong);
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  z-index: 80;
  inset: 0 0 auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 22px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  background: var(--surface-raised);
  box-shadow: var(--shadow-sm);
}

.site-brand {
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 235px;
  color: var(--ink);
  text-decoration: none;
}

.site-brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.site-brand__text {
  display: grid;
  line-height: 1.12;
}

.site-brand__text strong {
  font-size: 15px;
  font-weight: 760;
  letter-spacing: -0.01em;
}

.site-brand__text small {
  margin-top: 4px;
  color: var(--ink-tertiary);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.085em;
  text-transform: uppercase;
}

.site-header__actions {
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 7px;
}

.header-link,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--ink-secondary);
  background: transparent;
  font-size: 13px;
  font-weight: 680;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition:
    color 150ms ease,
    background-color 150ms ease,
    border-color 150ms ease,
    transform 150ms ease;
}

.header-link {
  padding: 0 11px;
}

.icon-button {
  width: 38px;
  padding: 0;
  border-color: var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.header-link:hover,
.icon-button:hover {
  color: var(--ink);
  background: var(--surface-soft);
  border-color: var(--line-strong);
}

.theme-toggle span {
  font-size: 20px;
  line-height: 1;
  transform: rotate(-22deg);
}

.reading-progress {
  position: fixed;
  z-index: 95;
  top: calc(var(--header-height) - 2px);
  right: 0;
  left: 0;
  height: 2px;
  pointer-events: none;
}

.reading-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--arch-blue-strong), #60c7f5);
  transform: scaleX(0);
  transform-origin: left;
}

.app-nav {
  position: fixed;
  z-index: 90;
  top: 0;
  right: 326px;
  display: flex;
  align-items: center;
  height: var(--header-height);
  margin: 0;
  padding: 0;
}

.app-nav > ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.app-nav > ul > li {
  position: relative;
  margin: 0;
  cursor: default;
}

.app-nav > ul > li > p {
  margin: 0;
  padding: 8px 11px;
  border-radius: 9px;
  color: var(--ink-secondary);
  font-size: 13px;
  font-weight: 650;
}

.app-nav li ul {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 172px;
  margin: 0;
  padding: 7px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-md);
  list-style: none;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-4px);
  transition: 150ms ease;
}

.app-nav li:hover ul,
.app-nav li:focus-within ul {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.app-nav li ul a {
  display: block;
  padding: 8px 10px;
  border-radius: 7px;
  color: var(--ink-secondary);
  font-size: 13px;
  text-decoration: none;
}

.app-nav li ul a:hover {
  color: var(--ink);
  background: var(--surface-soft);
}

.github-corner {
  display: none;
}

.sidebar {
  position: fixed;
  z-index: 50;
  top: var(--header-height);
  bottom: 0;
  left: 0;
  width: var(--sidebar-width);
  padding: 18px 14px 32px;
  overflow-x: hidden;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  scrollbar-color: var(--line-strong) transparent;
  scrollbar-width: thin;
  transition: transform 220ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.sidebar .app-name {
  display: none;
}

.search {
  position: sticky;
  z-index: 2;
  top: -18px;
  margin: -2px -2px 17px;
  padding: 2px 2px 14px;
  background: linear-gradient(var(--surface) 78%, transparent);
}

.search .input-wrap {
  position: relative;
}

.search .input-wrap::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: 13px;
  left: 14px;
  width: 10px;
  height: 10px;
  border: 1.7px solid var(--ink-tertiary);
  border-radius: 50%;
  pointer-events: none;
}

.search .input-wrap::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 24px;
  left: 24px;
  width: 6px;
  height: 1.7px;
  border-radius: 2px;
  background: var(--ink-tertiary);
  transform: rotate(45deg);
  transform-origin: left center;
  pointer-events: none;
}

.sidebar .search .input-wrap > input {
  display: block;
  width: 100%;
  height: 42px;
  margin: 0;
  padding: 0 78px 0 40px;
  border: 1px solid var(--line);
  border-radius: 11px;
  outline: none;
  color: var(--ink);
  background: var(--surface-soft);
  font-size: 13px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition:
    border-color 150ms ease,
    background-color 150ms ease,
    box-shadow 150ms ease;
}

.sidebar .search .input-wrap > input::-webkit-search-cancel-button {
  appearance: none;
}

.sidebar .search .input-wrap > input::placeholder {
  color: var(--ink-tertiary);
}

.sidebar .search .input-wrap > input:focus {
  border-color: var(--arch-blue);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(23, 147, 209, 0.12);
}

.sidebar .search .input-wrap > .clear-button {
  position: absolute;
  z-index: 3;
  top: 6px;
  right: 6px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  color: var(--ink-tertiary);
  background: transparent;
  cursor: pointer;
  translate: none;
  transition:
    color 130ms ease,
    background-color 130ms ease;
}

.sidebar .search .input-wrap > .clear-button::before,
.sidebar .search .input-wrap > .clear-button::after {
  content: "";
  position: absolute;
  rotate: 0deg;
}

.sidebar .search .input-wrap > .clear-button::before {
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.82;
}

.sidebar .search .input-wrap > .clear-button::after {
  content: "×";
  display: grid;
  width: 17px;
  height: 17px;
  place-items: center;
  color: var(--surface);
  background: transparent;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  transform: none;
}

.sidebar .search .input-wrap > .clear-button:hover {
  color: var(--ink);
  background: var(--surface-soft);
}

.sidebar .search .input-wrap > .clear-button:focus-visible {
  outline: 3px solid rgba(23, 147, 209, 0.28);
  outline-offset: 1px;
}

.sidebar .search .kbd-group {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: 9px;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-50%);
  pointer-events: none;
  transition:
    opacity 130ms ease,
    visibility 130ms ease;
}

.sidebar .search input:placeholder-shown:not(:focus) ~ .kbd-group {
  opacity: 1;
  visibility: visible;
}

.sidebar .search .kbd-group kbd {
  display: inline-grid;
  min-width: 23px;
  height: 23px;
  place-items: center;
  padding: 0 5px;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  color: var(--ink-tertiary);
  background: var(--surface);
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 720;
  line-height: 1;
  box-shadow: var(--shadow-sm);
}

.sidebar .search > .results-status {
  margin: 13px 5px 7px;
  color: var(--ink-tertiary);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.sidebar .search > .results-panel {
  max-height: calc(100vh - var(--header-height) - 145px);
  margin-top: 0;
  padding: 4px;
  overflow-x: hidden;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  scrollbar-color: var(--line-strong) transparent;
  scrollbar-width: thin;
}

.sidebar .search .matching-post {
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
}

.sidebar .search .matching-post:last-child {
  border-bottom: 0;
}

.sidebar .search .matching-post > a {
  display: block;
  padding: 10px;
  border-radius: 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 680;
  text-decoration: none;
  transition: background-color 130ms ease;
}

.sidebar .search .matching-post > a:hover {
  background: var(--surface-soft);
}

.sidebar .search .matching-post .title {
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar .search .matching-post .content {
  position: static;
  display: -webkit-box;
  width: auto;
  height: auto;
  margin: 5px 0 0;
  padding: 0;
  overflow: hidden;
  color: var(--ink-tertiary);
  background: transparent;
  font-size: 11px;
  font-weight: 480;
  line-height: 1.55;
  white-space: normal;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.sidebar .search mark,
.sidebar .search .search-keyword {
  padding: 0 0.12em;
  border-radius: 3px;
  color: var(--arch-blue-strong);
  background: var(--arch-blue-soft);
  font-style: normal;
  font-weight: 750;
}

.sidebar .search:has(.results-panel:not(:empty)) ~ .sidebar-nav {
  display: none;
}

.sidebar-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sidebar-nav > ul > li {
  margin: 0 0 18px;
}

.sidebar-nav > ul > li:first-child {
  display: none;
}

.sidebar-nav li p {
  margin: 0 0 5px;
  padding: 0 11px;
  color: var(--ink-tertiary);
  font-size: 11px;
  font-weight: 780;
  letter-spacing: 0.105em;
  text-transform: uppercase;
}

.sidebar-nav li a {
  position: relative;
  display: block;
  margin: 1px 0;
  padding: 7px 11px;
  border-radius: 9px;
  color: var(--ink-secondary);
  font-size: 13.5px;
  font-weight: 540;
  line-height: 1.42;
  text-decoration: none;
  transition:
    color 130ms ease,
    background-color 130ms ease;
}

.sidebar-nav li a:hover {
  color: var(--ink);
  background: var(--surface-soft);
}

.sidebar-nav li.active > a {
  color: var(--arch-blue-strong);
  background: var(--arch-blue-soft);
  font-weight: 720;
}

.sidebar-nav li.active > a::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 0;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--arch-blue);
}

.sidebar-nav li ul li a {
  padding-left: 22px;
  color: var(--ink-tertiary);
  font-size: 12.5px;
}

.sidebar-nav li ul li ul a {
  padding-left: 33px;
  font-size: 12px;
}

.sidebar-toggle {
  position: fixed;
  z-index: 70;
  top: calc(var(--header-height) + 16px);
  left: calc(var(--sidebar-width) - 19px);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition:
    left 220ms ease,
    background-color 150ms ease,
    border-color 150ms ease,
    transform 150ms ease;
}

.sidebar-toggle:hover {
  background: var(--surface-soft);
  border-color: color-mix(in srgb, var(--arch-blue) 40%, var(--line));
  transform: translateY(-1px);
}

.sidebar-toggle-button {
  position: relative;
  display: block !important;
  width: 20px;
  height: 18px;
  border: 1.5px solid var(--ink-secondary);
  border-radius: 4px;
  outline: none;
  color: var(--ink-secondary);
}

.sidebar-toggle-button:focus-visible {
  outline: 3px solid rgba(23, 147, 209, 0.34);
  outline-offset: 7px;
  border-radius: 2px;
}

.sidebar-toggle-button span {
  position: absolute;
  display: block;
  margin: 0;
  box-sizing: border-box;
  border-radius: 2px;
  transition:
    transform 180ms ease,
    left 180ms ease;
}

.sidebar-toggle-button span:nth-child(1) {
  top: 2px;
  bottom: 2px;
  left: 5px;
  width: 1.5px;
  background: currentColor;
}

.sidebar-toggle-button span:nth-child(2) {
  top: 5px;
  left: 11px;
  width: 5px;
  height: 5px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  background: transparent;
  transform: rotate(135deg);
}

.sidebar-toggle-button span:nth-child(3) {
  display: none;
}

main:not(:has(> .sidebar.show)) > .sidebar-toggle .sidebar-toggle-button span:nth-child(2) {
  left: 9px;
  transform: rotate(-45deg);
}

.sidebar:not(.show) {
  transform: translateX(calc(-1 * var(--sidebar-width)));
}

.sidebar.show {
  transform: translateX(0);
}

.sidebar-toggle {
  left: 18px;
}

main:has(> .sidebar.show) > .sidebar-toggle {
  left: calc(var(--sidebar-width) - 19px);
}

main > .content {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  min-height: 100vh;
  padding: calc(var(--header-height) + 48px) 48px 88px;
  transition: left 220ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

main:has(> .sidebar.show) > .content {
  left: var(--sidebar-width);
}

.markdown-section {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0;
  color: var(--ink);
}

.markdown-section > :first-child:not(.article-meta) {
  margin-top: 0;
}

.markdown-section h1,
.markdown-section h2,
.markdown-section h3,
.markdown-section h4,
.markdown-section h5,
.markdown-section h6 {
  position: relative;
  color: var(--ink);
  font-weight: 760;
  line-height: 1.28;
  text-wrap: balance;
}

.markdown-section h1 {
  max-width: 790px;
  margin: 19px 0 25px;
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  font-weight: 820;
  letter-spacing: -0.045em;
}

.markdown-section h1::after {
  content: "";
  display: block;
  width: 54px;
  height: 4px;
  margin-top: 20px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--arch-blue), #65caf2);
}

.markdown-section h2 {
  margin: 3.5rem 0 1.1rem;
  padding-top: 0.25rem;
  border-top: 1px solid var(--line);
  font-size: clamp(1.55rem, 2.6vw, 2rem);
  letter-spacing: -0.025em;
}

.markdown-section h2::before {
  content: "";
  display: block;
  width: 36px;
  height: 3px;
  margin: -0.35rem 0 1.2rem;
  border-radius: 3px;
  background: var(--arch-blue);
}

.markdown-section h3 {
  margin: 2.5rem 0 0.8rem;
  font-size: 1.3rem;
  letter-spacing: -0.015em;
}

.markdown-section h4 {
  margin: 2rem 0 0.7rem;
  font-size: 1.08rem;
}

.markdown-section h5,
.markdown-section h6 {
  margin: 1.6rem 0 0.6rem;
  font-size: 1rem;
}

.markdown-section h1 a,
.markdown-section h2 a,
.markdown-section h3 a,
.markdown-section h4 a,
.markdown-section h5 a,
.markdown-section h6 a {
  color: inherit;
  text-decoration: none;
}

.markdown-section h1 a:hover::after,
.markdown-section h2 a:hover::after,
.markdown-section h3 a:hover::after {
  content: " #";
  color: var(--arch-blue);
  font-weight: 500;
}

.markdown-section p,
.markdown-section ul,
.markdown-section ol {
  margin: 0 0 1.15rem;
}

.markdown-section p {
  text-wrap: pretty;
}

.markdown-section ul,
.markdown-section ol {
  padding-left: 1.45rem;
}

.markdown-section li {
  margin: 0.35rem 0;
  padding-left: 0.15rem;
}

.markdown-section li::marker {
  color: var(--arch-blue);
  font-weight: 720;
}

.markdown-section li > ul,
.markdown-section li > ol {
  margin-top: 0.4rem;
  margin-bottom: 0.4rem;
}

.markdown-section strong {
  color: color-mix(in srgb, var(--ink) 90%, var(--arch-blue));
  font-weight: 730;
}

.markdown-section a:not(.page-navigation__link):not(.article-footer a) {
  font-weight: 560;
}

.markdown-section a:hover {
  color: var(--arch-blue);
}

.markdown-section hr {
  height: 1px;
  margin: 3rem 0;
  border: 0;
  background: var(--line);
}

.markdown-section blockquote {
  position: relative;
  margin: 1.7rem 0;
  padding: 1.05rem 1.2rem 1.05rem 1.35rem;
  border: 1px solid color-mix(in srgb, var(--arch-blue) 25%, var(--line));
  border-left: 4px solid var(--arch-blue);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--ink-secondary);
  background: var(--arch-blue-soft);
}

.markdown-section blockquote > :last-child {
  margin-bottom: 0;
}

.markdown-section blockquote strong {
  color: var(--ink);
}

.markdown-section code {
  padding: 0.16em 0.4em;
  border: 1px solid color-mix(in srgb, var(--arch-blue) 18%, var(--line));
  border-radius: 6px;
  color: color-mix(in srgb, var(--arch-blue-strong) 78%, var(--ink));
  background: var(--arch-blue-soft);
  font-family: var(--font-mono);
  font-size: 0.88em;
  font-weight: 540;
  overflow-wrap: anywhere;
}

.markdown-section pre {
  position: relative;
  margin: 1.4rem 0 1.8rem;
  padding: 1.25rem 1.35rem;
  overflow: auto;
  border: 1px solid color-mix(in srgb, var(--line) 55%, #000);
  border-radius: var(--radius-md);
  color: var(--code-ink);
  background: var(--code-surface);
  box-shadow: var(--shadow-md);
  scrollbar-color: #42515d transparent;
}

.markdown-section pre::before {
  content: "";
  display: block;
  width: 38px;
  height: 8px;
  margin: -0.35rem 0 1rem;
  background:
    radial-gradient(circle at 4px 4px, #ff6b6b 0 4px, transparent 4.2px),
    radial-gradient(circle at 19px 4px, #ffd166 0 4px, transparent 4.2px),
    radial-gradient(circle at 34px 4px, #59d98e 0 4px, transparent 4.2px);
}

.markdown-section pre code {
  display: block;
  padding: 0;
  border: 0;
  color: inherit;
  background: transparent;
  font-size: 0.86rem;
  font-weight: 450;
  line-height: 1.72;
  overflow-wrap: normal;
}

.copy-code {
  position: absolute;
  top: 10px;
  right: 10px;
  min-width: 50px;
  height: 29px;
  padding: 0 9px;
  border: 1px solid #334550;
  border-radius: 7px;
  color: #aebcc7;
  background: #18242e;
  font-size: 11px;
  font-weight: 650;
  cursor: pointer;
  opacity: 0;
  transition: opacity 150ms ease, color 150ms ease, border-color 150ms ease;
}

.markdown-section pre:hover .copy-code,
.copy-code:focus-visible {
  opacity: 1;
}

.copy-code:hover {
  color: #fff;
  border-color: #5f7482;
}

.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: #788896;
}

.token.punctuation {
  color: #c5d1da;
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
  color: #ff8e8e;
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
  color: #8bd49c;
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string,
.token.variable {
  color: #79c8f0;
}

.token.atrule,
.token.attr-value,
.token.function,
.token.class-name {
  color: #ffd479;
}

.token.keyword {
  color: #c9a7ff;
}

.markdown-section img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.6rem auto;
  border-radius: var(--radius-md);
}

.markdown-section a > img {
  transition: opacity 150ms ease;
}

.markdown-section a:hover > img {
  opacity: 0.86;
}

.table-scroll {
  width: 100%;
  margin: 1.5rem 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.markdown-section table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.markdown-section th,
.markdown-section td {
  padding: 0.82rem 0.95rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.markdown-section th {
  color: var(--ink);
  background: var(--surface-soft);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.03em;
}

.markdown-section tr:last-child td {
  border-bottom: 0;
}

.markdown-section tr:nth-child(2n) td {
  background: color-mix(in srgb, var(--surface-soft) 55%, transparent);
}

.markdown-section key,
.markdown-section kbd {
  display: inline-block;
  min-width: 1.8em;
  margin: 0 0.1em;
  padding: 0.12em 0.42em;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  color: var(--ink-secondary);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.8em;
  line-height: 1.4;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.markdown-section sup {
  margin-inline: 0.12em;
  padding: 0.08em 0.3em;
  border-radius: 4px;
  color: var(--arch-blue-strong);
  background: var(--arch-blue-soft);
  font-size: 0.66em;
  font-weight: 720;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--ink-tertiary);
  font-size: 12px;
  font-weight: 590;
  letter-spacing: 0.02em;
}

.article-meta__separator {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--line-strong);
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 3.8rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.article-footer p {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 13px;
}

.article-footer a {
  flex: none;
  color: var(--arch-blue-strong);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.page-navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 1.5rem 0 4rem;
}

.page-navigation__link {
  display: flex;
  min-height: 104px;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--ink);
  background: var(--surface);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease,
    transform 150ms ease;
}

.page-navigation__link:hover {
  color: var(--ink);
  border-color: color-mix(in srgb, var(--arch-blue) 48%, var(--line));
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.page-navigation__link--next {
  grid-column: 2;
  text-align: right;
}

.page-navigation__direction {
  color: var(--ink-tertiary);
  font-size: 11px;
  font-weight: 720;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-navigation__link strong {
  color: inherit;
  font-size: 14px;
  line-height: 1.45;
}

.comments-section {
  margin-top: 1rem;
  padding-top: 3rem;
  border-top: 1px solid var(--line);
}

.comments-heading {
  margin-bottom: 1.4rem;
}

.comments-heading .eyebrow {
  margin: 0 0 0.35rem;
  color: var(--arch-blue-strong);
  font-size: 10px;
  font-weight: 790;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.comments-heading h2 {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 1.55rem;
}

.comments-heading h2::before {
  display: none;
}

.comments-heading > p:last-child {
  margin: 0.4rem 0 0;
  color: var(--ink-secondary);
  font-size: 13px;
}

#gitalk-container {
  min-height: 110px;
}

.gt-container {
  color: var(--ink) !important;
  font-family: var(--font-sans) !important;
}

.gt-container .gt-header-textarea,
.gt-container .gt-popup,
.gt-container .gt-comment-content {
  color: var(--ink) !important;
  background: var(--surface) !important;
  border-color: var(--line) !important;
  border-radius: var(--radius-md) !important;
  box-shadow: none !important;
}

.gt-container .gt-header-textarea:hover,
.gt-container .gt-header-textarea:focus {
  background: var(--surface) !important;
}

.gt-container .gt-btn {
  border-color: var(--arch-blue-strong) !important;
  border-radius: 9px !important;
  color: #fff !important;
  background: var(--arch-blue-strong) !important;
}

.gt-container .gt-btn-preview {
  color: var(--arch-blue-strong) !important;
  background: transparent !important;
}

.gt-container a,
.gt-container .gt-comment-username {
  color: var(--arch-blue-strong) !important;
}

.gt-container .gt-comment-body {
  color: var(--ink-secondary) !important;
}

.gt-container .gt-comment-admin .gt-comment-content {
  background: var(--arch-blue-soft) !important;
}

.gt-container .gt-header-controls-tip,
.gt-container .gt-comment-date,
.gt-container .gt-svg {
  color: var(--ink-tertiary) !important;
  fill: currentColor !important;
}

.back-to-top {
  position: fixed;
  z-index: 65;
  right: 22px;
  bottom: 22px;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink-secondary);
  background: var(--surface-raised);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  visibility: hidden;
  opacity: 0;
  transform: translateY(8px);
  transition: 160ms ease;
}

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

.back-to-top:hover {
  color: var(--arch-blue-strong);
  border-color: color-mix(in srgb, var(--arch-blue) 45%, var(--line));
}

.initial-loader {
  display: grid;
  min-height: 100vh;
  place-content: center;
  justify-items: center;
  gap: 14px;
  color: var(--ink-tertiary);
  background: var(--surface-soft);
  font-size: 14px;
}

.initial-loader img {
  animation: loader-pulse 1.8s ease-in-out infinite;
}

.initial-loader p {
  margin: 0;
}

@keyframes loader-pulse {
  50% {
    opacity: 0.48;
    transform: translateY(-3px);
  }
}

.noscript-message {
  max-width: 680px;
  margin: 100px auto;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.progress {
  position: fixed;
  z-index: 100;
  top: calc(var(--header-height) - 2px);
  left: 0;
  height: 2px;
  background: var(--arch-blue);
}

@media (max-width: 1120px) {
  .app-nav {
    display: none;
  }

  .header-link--github {
    display: none;
  }
}

@media (max-width: 900px) {
  :root {
    --sidebar-width: min(86vw, 310px);
  }

  .site-header {
    padding: 0 14px 0 62px;
  }

  .site-brand {
    min-width: 0;
  }

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

  .site-brand__text small {
    display: none;
  }

  .sidebar {
    background: var(--surface);
    box-shadow: var(--shadow-md);
  }

  .sidebar-toggle,
  main:has(> .sidebar.show) > .sidebar-toggle {
    top: 17px;
    left: 14px;
    z-index: 100;
  }

  main > .content,
  main:has(> .sidebar.show) > .content {
    left: 0;
    padding: calc(var(--header-height) + 40px) 26px 72px;
  }

  body:has(main > .sidebar.show)::after {
    content: "";
    position: fixed;
    z-index: 40;
    inset: var(--header-height) 0 0 var(--sidebar-width);
    background: rgba(6, 13, 18, 0.35);
    cursor: pointer;
    pointer-events: auto;
  }
}

@media (max-width: 620px) {
  :root {
    --header-height: 60px;
  }

  body {
    font-size: 15px;
    line-height: 1.7;
  }

  .site-header {
    padding-right: 10px;
  }

  .site-brand img,
  .header-link--github {
    display: none;
  }

  .site-brand__text strong {
    font-size: 14px;
  }

  .site-header__actions {
    gap: 5px;
  }

  .icon-button {
    width: 36px;
    min-height: 36px;
  }

  .sidebar-toggle,
  main:has(> .sidebar.show) > .sidebar-toggle {
    top: 14px;
  }

  main > .content,
  main:has(> .sidebar.show) > .content {
    padding: calc(var(--header-height) + 32px) 18px 60px;
  }

  .markdown-section h1 {
    margin-top: 14px;
    font-size: 2rem;
    letter-spacing: -0.035em;
  }

  .markdown-section h2 {
    margin-top: 3rem;
    font-size: 1.5rem;
  }

  .markdown-section h3 {
    font-size: 1.22rem;
  }

  .markdown-section pre {
    margin-right: -6px;
    margin-left: -6px;
    padding: 1.05rem;
    border-radius: 11px;
  }

  .copy-code {
    opacity: 1;
  }

  .article-meta {
    flex-wrap: wrap;
  }

  .article-footer {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .page-navigation__link--next {
    grid-column: 1;
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .app-nav,
  .sidebar,
  .sidebar-toggle,
  .reading-progress,
  .back-to-top,
  .article-footer,
  .page-navigation,
  .comments-section {
    display: none !important;
  }

  main > .content,
  main:has(> .sidebar.show) > .content {
    position: static;
    padding: 0;
  }

  .markdown-section {
    max-width: none;
    color: #111;
  }

  .markdown-section pre {
    white-space: pre-wrap;
    box-shadow: none;
  }
}