:root {
  --paper: #f7f3ea;
  --paper-soft: #fbfaf6;
  --paper-deep: #eee7da;
  --ink: #282421;
  --ink-soft: #5f5750;
  --ink-muted: #81776c;
  --line: #dfd5c6;
  --line-strong: #cfc1af;
  --clay: #b85c38;
  --clay-deep: #8f4329;
  --clay-soft: #e7c7b6;
  --sage: #667760;
  --blue: #405a66;
  --code-bg: #26231f;
  --code-line: #403a33;
  --shadow: 0 18px 48px rgba(61, 48, 37, .12);
  --content-width: 900px;
  --sidebar-width: 304px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    linear-gradient(90deg, rgba(184, 92, 56, .055) 0 1px, transparent 1px 100%),
    linear-gradient(180deg, rgba(64, 90, 102, .045) 0 1px, transparent 1px 100%),
    radial-gradient(circle at 18% 12%, rgba(184, 92, 56, .13), transparent 28rem),
    radial-gradient(circle at 88% 8%, rgba(102, 119, 96, .12), transparent 30rem),
    linear-gradient(180deg, var(--paper-soft), var(--paper) 34rem, #f4efe5);
  background-size: 44px 44px, 44px 44px, auto, auto, auto;
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(40, 36, 33, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(40, 36, 33, .02) 1px, transparent 1px);
  background-size: 132px 132px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .58), transparent 72%);
}

.paper-field {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .38;
  background:
    radial-gradient(circle at 14% 24%, rgba(184, 92, 56, .12) 0 1px, transparent 2px),
    radial-gradient(circle at 76% 18%, rgba(64, 90, 102, .12) 0 1px, transparent 2px),
    radial-gradient(circle at 44% 72%, rgba(102, 119, 96, .10) 0 1px, transparent 2px);
  background-size: 62px 62px, 86px 86px, 74px 74px;
}

a {
  color: var(--clay-deep);
  text-decoration-color: rgba(184, 92, 56, .28);
  text-underline-offset: 3px;
}

a:hover {
  color: #74331f;
  text-decoration-color: rgba(184, 92, 56, .68);
}

.app-name-link,
.sidebar-nav strong,
.markdown-section h1,
.markdown-section h2,
.markdown-section h3,
.markdown-section h4 {
  letter-spacing: 0;
}

.sidebar {
  width: var(--sidebar-width);
  background: rgba(251, 250, 246, .88);
  border-right: 1px solid var(--line);
  box-shadow: 14px 0 42px rgba(61, 48, 37, .055);
  backdrop-filter: blur(18px);
  padding: 26px 18px 36px;
}

.sidebar::before {
  content: "";
  display: block;
  width: 42px;
  height: 42px;
  margin: 4px 0 14px 10px;
  border: 1px solid rgba(184, 92, 56, .42);
  border-radius: 50%;
  background:
    linear-gradient(140deg, rgba(184, 92, 56, .18), transparent 58%),
    radial-gradient(circle at 62% 36%, rgba(184, 92, 56, .92) 0 5px, transparent 6px),
    radial-gradient(circle at 38% 64%, rgba(102, 119, 96, .78) 0 4px, transparent 5px),
    var(--paper-soft);
}

.app-name {
  margin: 0 0 22px;
  padding: 0 8px;
  text-align: left;
}

.app-name-link {
  color: var(--ink) !important;
  font-size: 20px;
  font-weight: 760;
  line-height: 1.2;
}

.app-name-link::after {
  content: "Anthropic notes";
  display: block;
  margin-top: 7px;
  color: var(--ink-muted);
  font-size: 12px;
  font-weight: 560;
  letter-spacing: 0;
  text-transform: uppercase;
}

.search {
  margin: 0 0 22px !important;
  padding: 0 8px 18px !important;
  border-bottom: 1px solid var(--line) !important;
}

.search input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line-strong) !important;
  border-radius: 8px !important;
  background: rgba(255, 253, 248, .82) !important;
  color: var(--ink) !important;
  font-size: 14px !important;
  padding: 0 12px !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .7);
}

.search input:focus {
  border-color: rgba(184, 92, 56, .72) !important;
  box-shadow: 0 0 0 3px rgba(184, 92, 56, .12);
}

.search .matching-post {
  border-bottom: 1px solid rgba(223, 213, 198, .72);
}

.search .matching-post a {
  color: var(--ink);
}

.sidebar-nav {
  padding: 0 4px 24px;
}

.sidebar ul,
.sidebar li {
  margin: 0;
}

.sidebar-nav > ul > li {
  margin: 18px 0 8px;
}

.sidebar-nav strong {
  display: block;
  margin: 0 0 8px 4px;
  color: var(--ink-muted);
  font-size: 12px;
  font-weight: 760;
  text-transform: uppercase;
}

.sidebar-nav li a {
  display: block;
  min-height: 34px;
  margin: 2px 0;
  padding: 8px 10px 8px 14px;
  border-radius: 8px;
  color: var(--ink-soft) !important;
  font-size: 14px;
  line-height: 1.35;
  text-decoration: none;
  border: 1px solid transparent;
}

.sidebar-nav li.active > a,
.sidebar-nav li a:hover {
  color: var(--ink) !important;
  background: rgba(184, 92, 56, .09);
  border-color: rgba(184, 92, 56, .18);
}

.sidebar-nav li.active > a {
  box-shadow: inset 3px 0 0 var(--clay);
  font-weight: 690;
}

.sidebar-toggle {
  left: 18px;
  bottom: 18px;
  width: 42px;
  height: 42px;
  padding: 11px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(251, 250, 246, .94);
  box-shadow: 0 12px 28px rgba(61, 48, 37, .12);
}

.sidebar-toggle span {
  background-color: var(--ink-soft);
}

.content {
  left: var(--sidebar-width);
  padding-top: 0;
}

.markdown-section {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 68px 40px 88px;
  color: var(--ink);
  line-height: 1.82;
}

.markdown-section > *:first-child {
  margin-top: 0;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 28px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 10px;
  border: 1px solid rgba(207, 193, 175, .78);
  border-radius: 999px;
  background: rgba(251, 250, 246, .74);
  color: var(--ink-muted);
  font-size: 12px;
  font-weight: 650;
}

.markdown-section h1 {
  margin: 0 0 24px;
  color: var(--ink);
  font-size: 54px;
  font-weight: 780;
  line-height: 1.08;
}

.markdown-section h2 {
  margin: 54px 0 18px;
  padding-top: 10px;
  border-top: 1px solid rgba(207, 193, 175, .72);
  color: var(--ink);
  font-size: 28px;
  font-weight: 750;
  line-height: 1.25;
}

.markdown-section h3 {
  margin: 36px 0 12px;
  color: var(--ink);
  font-size: 21px;
  font-weight: 720;
}

.markdown-section h4 {
  margin: 28px 0 10px;
  color: var(--ink-soft);
  font-size: 17px;
  font-weight: 720;
}

.markdown-section p,
.markdown-section ul,
.markdown-section ol {
  color: var(--ink-soft);
  font-size: 16px;
}

.markdown-section li + li {
  margin-top: 6px;
}

.markdown-section strong {
  color: var(--ink);
  font-weight: 760;
}

.markdown-section hr {
  height: 1px;
  margin: 42px 0;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

.markdown-section blockquote {
  margin: 26px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--clay);
  border-radius: 0 8px 8px 0;
  background: rgba(255, 253, 248, .66);
  color: var(--ink-soft);
  box-shadow: inset 0 0 0 1px rgba(223, 213, 198, .72);
}

.markdown-section blockquote p {
  margin: 0;
}

.markdown-section table {
  display: table;
  width: 100%;
  margin: 26px 0;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(251, 250, 246, .76);
  box-shadow: 0 10px 24px rgba(61, 48, 37, .06);
}

.markdown-section th,
.markdown-section td {
  border: 1px solid rgba(207, 193, 175, .68);
  padding: 12px 14px;
}

.markdown-section th {
  background: rgba(238, 231, 218, .72);
  color: var(--ink);
  font-weight: 720;
}

.markdown-section tr:nth-child(2n) {
  background: rgba(255, 253, 248, .56);
}

.markdown-section code {
  border-radius: 6px;
  background: rgba(184, 92, 56, .105);
  color: var(--clay-deep);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: .92em;
  padding: .18em .38em;
}

.markdown-section pre {
  margin: 26px 0;
  border: 1px solid var(--code-line);
  border-radius: 8px;
  background: var(--code-bg) !important;
  box-shadow: var(--shadow);
}

.markdown-section pre::before {
  content: "";
  display: block;
  height: 32px;
  border-bottom: 1px solid var(--code-line);
  background:
    radial-gradient(circle at 18px 50%, #c96a46 0 4px, transparent 5px),
    radial-gradient(circle at 34px 50%, #d4a247 0 4px, transparent 5px),
    radial-gradient(circle at 50px 50%, #6f875f 0 4px, transparent 5px),
    linear-gradient(180deg, #302b25, #29251f);
}

.markdown-section pre > code {
  display: block;
  background: transparent !important;
  color: #f4eadb;
  font-size: 14px;
  line-height: 1.72;
  padding: 18px 20px;
  white-space: pre;
}

.docsify-copy-code-button {
  top: 7px !important;
  right: 8px !important;
  border: 1px solid rgba(244, 234, 219, .18) !important;
  border-radius: 6px !important;
  background: rgba(244, 234, 219, .1) !important;
  color: #f4eadb !important;
  font-size: 12px !important;
}

.anchor span {
  color: inherit;
}

.markdown-section h1 .anchor span,
.markdown-section h2 .anchor span,
.markdown-section h3 .anchor span {
  color: inherit;
}

.markdown-section h1:hover .anchor span,
.markdown-section h2:hover .anchor span,
.markdown-section h3:hover .anchor span {
  color: var(--clay);
}

section.cover,
section.cover.show {
  min-height: 82vh !important;
  background:
    radial-gradient(circle at 20% 16%, rgba(184, 92, 56, .16), transparent 24rem),
    radial-gradient(circle at 82% 24%, rgba(102, 119, 96, .16), transparent 28rem),
    linear-gradient(180deg, rgba(251, 250, 246, .78), rgba(247, 243, 234, .92)) !important;
  color: var(--ink);
  align-items: center;
}

section.cover .mask {
  display: none !important;
}

section.cover .cover-main {
  max-width: 980px;
  padding: 72px 34px 52px;
  text-align: left !important;
  margin: 0 auto !important;
}

section.cover .cover-main > p:first-child {
  margin: 0 0 18px;
}

section.cover .cover-main h1 {
  max-width: 760px;
  margin: 0 0 22px;
  color: var(--ink);
  font-size: 72px;
  font-weight: 780;
  line-height: 1.02;
  text-align: left !important;
}

section.cover .cover-main blockquote {
  max-width: 720px;
  margin: 0 0 32px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  color: var(--ink-soft);
  font-size: 19px;
  line-height: 1.75;
  text-align: left !important;
}

section.cover .cover-main blockquote p {
  color: inherit;
  font-size: inherit;
}

section.cover .cover-main ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 760px;
  margin: 0 0 34px;
  padding: 0;
  list-style: none;
}

section.cover .cover-main li {
  margin: 0;
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 253, 248, .72);
  color: var(--ink-muted);
  font-size: 13px;
  font-weight: 650;
}

section.cover .cover-main > p:last-child a {
  min-width: 124px;
  height: 44px;
  margin: 0 10px 10px 0;
  padding: 0 18px;
  border: 1px solid var(--clay) !important;
  border-radius: 8px !important;
  background: var(--clay) !important;
  color: #fffaf2 !important;
  font-weight: 700;
  line-height: 42px;
  text-decoration: none;
  box-shadow: 0 14px 28px rgba(143, 67, 41, .18);
}

section.cover .cover-main > p:last-child a:last-child {
  background: transparent !important;
  color: var(--clay-deep) !important;
  box-shadow: none;
}

section.cover .cover-main h1 a,
section.cover .cover-main blockquote a {
  color: inherit !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  padding: 0 !important;
  margin: 0 !important;
  height: auto !important;
  min-width: 0 !important;
  line-height: inherit !important;
}

body.is-home .markdown-section {
  max-width: 1120px;
  padding-top: 54px;
}

.home-hero {
  position: relative;
  overflow: hidden;
  min-height: 360px;
  margin: 0 0 44px;
  padding: 44px 0 52px;
  border-top: 1px solid rgba(207, 193, 175, .82);
  border-bottom: 1px solid rgba(207, 193, 175, .82);
  border-radius: 0;
  background:
    radial-gradient(circle at 86% 18%, rgba(184, 92, 56, .14), transparent 17rem),
    linear-gradient(180deg, rgba(255, 253, 248, .58), rgba(247, 243, 234, 0));
  box-shadow: none;
}

.home-hero::after {
  content: "";
  position: absolute;
  right: 46px;
  bottom: 50px;
  width: 172px;
  height: 172px;
  border: 1px solid rgba(184, 92, 56, .28);
  border-radius: 50%;
  background:
    linear-gradient(140deg, rgba(184, 92, 56, .11), transparent 60%),
    radial-gradient(circle at 64% 36%, rgba(184, 92, 56, .82) 0 11px, transparent 12px),
    radial-gradient(circle at 38% 64%, rgba(102, 119, 96, .7) 0 9px, transparent 10px),
    radial-gradient(circle at 48% 46%, rgba(64, 90, 102, .48) 0 5px, transparent 6px);
  opacity: .72;
}

.home-kicker,
.home-label,
.home-section-head p {
  margin: 0 0 12px;
  color: var(--clay-deep);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0;
  text-transform: uppercase;
}

.home-hero h1 {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 0 20px;
  color: var(--ink);
  font-size: 54px;
  font-weight: 790;
  line-height: 1.08;
}

.home-hero p {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 0 30px;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.82;
}

.home-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.home-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--clay);
  border-radius: 8px;
  background: var(--clay);
  color: #fffaf2 !important;
  font-weight: 720;
  text-decoration: none;
  box-shadow: 0 14px 28px rgba(143, 67, 41, .16);
}

.home-actions a + a {
  background: rgba(255, 253, 248, .62);
  color: var(--clay-deep) !important;
  box-shadow: none;
}

.home-section {
  margin: 46px 0 0;
}

.home-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin: 0 0 18px;
  border-top: 1px solid rgba(207, 193, 175, .72);
  padding-top: 28px;
}

.home-section h2,
.home-section-head h2 {
  margin: 0;
  border: 0;
  padding: 0;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.24;
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.home-card {
  display: block;
  min-height: 214px;
  padding: 22px;
  border: 1px solid rgba(207, 193, 175, .82);
  border-radius: 8px;
  background: rgba(251, 250, 246, .76);
  color: var(--ink-soft) !important;
  text-decoration: none;
  box-shadow: 0 12px 28px rgba(61, 48, 37, .06);
}

.home-card:hover {
  border-color: rgba(184, 92, 56, .4);
  transform: translateY(-1px);
}

.home-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 28px;
  margin: 0 0 20px;
  border: 1px solid rgba(184, 92, 56, .3);
  border-radius: 999px;
  color: var(--clay-deep);
  font-size: 12px;
  font-weight: 760;
}

.home-card h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.32;
}

.home-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.72;
}

.home-split {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: 32px;
  padding: 30px 0 0;
  border-top: 1px solid rgba(207, 193, 175, .72);
}

.home-list {
  display: grid;
  gap: 12px;
}

.home-list p {
  margin: 0;
  padding: 16px 18px;
  border: 1px solid rgba(207, 193, 175, .76);
  border-radius: 8px;
  background: rgba(255, 253, 248, .58);
  color: var(--ink-soft);
}

.pagination-item {
  border-top: 1px solid var(--line-strong) !important;
}

.pagination-item a {
  color: var(--ink) !important;
}

.pagination-item-label {
  color: var(--ink-muted) !important;
}

.pagination-item-title {
  color: var(--clay-deep) !important;
}

.markdown-section iframe,
.markdown-section img,
.markdown-section video {
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(61, 48, 37, .12);
}

.markdown-section .mermaid {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid rgba(207, 193, 175, .82);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 253, 248, .94), rgba(247, 243, 234, .88)),
    radial-gradient(circle at 12% 18%, rgba(184, 92, 56, .10), transparent 18rem);
  box-shadow: 0 14px 34px rgba(61, 48, 37, .08);
  overflow-x: auto;
}

.markdown-section .mermaid svg {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .home-hero {
    min-height: 0;
    padding: 42px;
  }

  .home-hero h1 {
    max-width: 620px;
    font-size: 42px;
  }

  .home-hero::after {
    width: 150px;
    height: 150px;
    right: 28px;
    bottom: 28px;
    opacity: .42;
  }

  .home-grid,
  .home-split {
    grid-template-columns: 1fr;
  }

  .home-card {
    min-height: 0;
  }
}

@media (max-width: 768px) {
  .content {
    left: 0;
    max-width: 100vw;
    position: static;
    padding-top: 20px;
  }

  .sidebar {
    left: calc(var(--sidebar-width) * -1);
    width: var(--sidebar-width);
  }

  body.close .sidebar {
    transform: translateX(var(--sidebar-width));
  }

  body.close .content {
    transform: translateX(var(--sidebar-width));
  }

  body.close .sidebar-toggle {
    width: var(--sidebar-width);
  }

  .markdown-section,
  body.is-home .markdown-section {
    padding: 42px 24px 68px;
  }

  section.cover,
  section.cover.show {
    min-height: 86vh;
  }

  section.cover .cover-main {
    padding: 48px 24px 38px;
  }

  section.cover .cover-main h1 {
    font-size: 44px;
  }

  section.cover .cover-main blockquote {
    font-size: 16px;
  }

  section.cover .cover-main > p:last-child a {
    width: 100%;
    margin-right: 0;
    text-align: center;
  }
}

@media (max-width: 640px) {
  :root {
    --sidebar-width: 286px;
  }

  body {
    background-size: 38px 38px, 38px 38px, auto, auto, auto;
  }

  .markdown-section {
    padding: 46px 20px 66px;
  }

  body.is-home .markdown-section {
    padding: 34px 18px 60px;
  }

  .markdown-section h1 {
    font-size: 34px;
  }

  .markdown-section h2 {
    font-size: 24px;
  }

  .article-meta {
    gap: 6px;
  }

  .home-hero {
    margin-bottom: 32px;
    padding: 30px 20px;
  }

  .home-hero::after {
    display: none;
  }

  .home-hero h1 {
    font-size: 34px;
  }

  .home-hero p {
    font-size: 16px;
    line-height: 1.76;
  }

  .home-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .home-actions a {
    width: 100%;
  }

  .home-section {
    margin-top: 34px;
  }

  .home-section-head {
    display: block;
    padding-top: 22px;
  }

  .home-section h2,
  .home-section-head h2 {
    font-size: 24px;
  }

  .home-card {
    padding: 18px;
  }

  .markdown-section table {
    display: block;
    overflow-x: auto;
  }
}