:root {
  --note-bg: #fbfbfa;
  --note-paper: #ffffff;
  --note-text: #202124;
  --note-muted: #667085;
  --note-border: #e6e8eb;
  --note-soft: #f3f5f7;
  --note-accent: #0f766e;
  --note-code-bg: #f6f8fa;
  --note-code-block-bg: #0d1117;
  --note-code-block-border: #30363d;
  --note-code-block-text: #c9d1d9;
  --note-width: 900px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--note-bg);
  color: var(--note-text);
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  font-size: 17px;
  line-height: 1.72;
}

a {
  color: #0b6bcb;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.note-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(0, auto) minmax(120px, 1fr);
  align-items: center;
  height: 56px;
  padding: 0 28px;
  border-bottom: 1px solid var(--note-border);
  background: rgba(251, 251, 250, 0.92);
  backdrop-filter: blur(10px);
}

.note-brand,
.note-current-title,
.note-nav a {
  color: var(--note-text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.note-current-title {
  overflow: hidden;
  max-width: min(56vw, 560px);
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.note-nav {
  justify-self: end;
}

.note-nav a {
  color: var(--note-muted);
  font-weight: 560;
}

.note-shell {
  display: grid;
  grid-template-columns: minmax(24px, 1fr) minmax(0, var(--note-width)) 280px minmax(24px, 1fr);
  gap: 40px;
  padding: 42px 0 80px;
}

.note-main {
  grid-column: 2;
  min-width: 0;
}

.note-article {
  width: 100%;
  overflow-wrap: break-word;
}

.note-article h1,
.note-article h2,
.note-article h3,
.note-article h4 {
  color: #111827;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.24;
  letter-spacing: 0;
  scroll-margin-top: 84px;
}

.note-article h1 {
  margin: 0 0 28px;
  font-size: 36px;
  font-weight: 760;
}

.note-article h2 {
  margin: 48px 0 16px;
  padding-top: 12px;
  border-top: 1px solid var(--note-border);
  font-size: 26px;
}

.note-article h3 {
  margin: 34px 0 12px;
  font-size: 21px;
}

.note-article h4 {
  margin: 28px 0 10px;
  font-size: 18px;
}

.note-article p,
.note-article ul,
.note-article ol,
.note-article blockquote,
.note-article pre,
.note-article table {
  margin-top: 0;
  margin-bottom: 18px;
}

.note-article li + li {
  margin-top: 4px;
}

.note-article img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 22px auto;
  border-radius: 6px;
}

.note-zoomable-image {
  cursor: zoom-in;
  transition: box-shadow 160ms ease, transform 160ms ease;
}

.note-zoomable-image:hover,
.note-zoomable-image:focus-visible {
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.16);
  outline: none;
  transform: translateY(-1px);
}

.note-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 72px 28px 32px;
  background: rgba(13, 17, 23, 0.88);
  opacity: 0;
  transition: opacity 160ms ease;
}

.note-lightbox.is-open {
  opacity: 1;
}

.note-lightbox[hidden] {
  display: none;
}

.note-lightbox img {
  max-width: min(96vw, 1320px);
  max-height: calc(100vh - 112px);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  object-fit: contain;
}

.note-lightbox-close {
  position: fixed;
  top: 22px;
  right: 24px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  background: rgba(17, 24, 39, 0.72);
  color: #ffffff;
  cursor: pointer;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 28px;
  line-height: 1;
}

.note-lightbox-close:hover,
.note-lightbox-close:focus-visible {
  background: rgba(17, 24, 39, 0.92);
  outline: 2px solid rgba(255, 255, 255, 0.66);
  outline-offset: 2px;
}

.note-lightbox-open {
  overflow: hidden;
}

.note-figure-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
  margin: 22px 0;
}

.note-figure-grid img {
  width: 100%;
  margin: 0;
}

.note-article blockquote,
.note-article .note-callout {
  margin: 22px 0;
  padding: 14px 18px;
  border-left: 4px solid var(--note-accent);
  background: #eef8f6;
  color: #1f3d3a;
}

.note-article code {
  padding: 0.12em 0.32em;
  border-radius: 4px;
  background: var(--note-code-bg);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.88em;
}

.note-article pre {
  overflow-x: auto;
  padding: 16px 18px;
  border: 1px solid var(--note-code-block-border);
  border-radius: 8px;
  background: var(--note-code-block-bg);
  color: var(--note-code-block-text);
  line-height: 1.55;
}

.note-article pre code {
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: 14px;
}

.note-article .highlight {
  margin: 0 0 18px;
}

.note-article .highlight pre {
  margin: 0;
}

.note-article .highlight .c,
.note-article .highlight .c1,
.note-article .highlight .cm {
  color: #8b949e;
  font-style: italic;
}

.note-article .highlight .k,
.note-article .highlight .kc,
.note-article .highlight .kd,
.note-article .highlight .kn,
.note-article .highlight .kp,
.note-article .highlight .kr {
  color: #ff7b72;
  font-weight: 650;
}

.note-article .highlight .nf,
.note-article .highlight .fm {
  color: #d2a8ff;
}

.note-article .highlight .nc {
  color: #ffa657;
  font-weight: 650;
}

.note-article .highlight .s,
.note-article .highlight .s1,
.note-article .highlight .s2,
.note-article .highlight .se {
  color: #a5d6ff;
}

.note-article .highlight .m,
.note-article .highlight .mi,
.note-article .highlight .mf {
  color: #79c0ff;
}

.note-article .highlight .nb,
.note-article .highlight .bp {
  color: #ffa657;
}

.note-article .highlight .o {
  color: #ff7b72;
}

.note-article table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
}

.note-article th,
.note-article td {
  padding: 8px 10px;
  border: 1px solid var(--note-border);
}

.note-article mjx-container[jax="CHTML"][display="true"] {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px 0;
}

.note-toc {
  grid-column: 3;
  position: sticky;
  top: 86px;
  align-self: start;
  max-height: calc(100vh - 110px);
  overflow: auto;
  padding-left: 18px;
  border-left: 1px solid var(--note-border);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.note-toc-title {
  margin-bottom: 10px;
  color: #374151;
  font-size: 13px;
  font-weight: 720;
  text-transform: uppercase;
}

.note-toc a {
  display: block;
  padding: 4px 0;
  color: var(--note-muted);
  font-size: 13px;
  line-height: 1.35;
  text-decoration: none;
}

.note-toc a:hover,
.note-toc a.is-active {
  color: var(--note-accent);
}

.note-toc .toc-level-3 {
  padding-left: 12px;
}

.note-toc .toc-level-4 {
  padding-left: 24px;
}

.note-index-list {
  display: grid;
  gap: 14px;
  margin: 28px 0;
}

.note-index-intro {
  max-width: 760px;
  color: #475467;
  font-size: 17px;
}

.note-index-card {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--note-border);
  border-radius: 8px;
  background: var(--note-paper);
  color: var(--note-text);
  text-decoration: none;
}

.note-index-card:hover {
  border-color: #c8d5df;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.06);
}

.note-index-card-head {
  display: flex;
  gap: 14px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 5px;
}

.note-index-card strong {
  display: block;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 18px;
}

.note-index-card time {
  flex: 0 0 auto;
  color: var(--note-muted);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 13px;
  font-weight: 620;
}

.note-index-keywords {
  display: block;
  color: var(--note-muted);
  font-size: 15px;
}

.note-index-summary {
  display: block;
  margin-top: 8px;
  color: #344054;
  font-size: 15.5px;
  line-height: 1.62;
}

.note-back-to-top {
  position: fixed;
  right: max(18px, calc((100vw - 1332px) / 2));
  bottom: 28px;
  z-index: 30;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(15, 118, 110, 0.36);
  border-radius: 50%;
  background: rgba(15, 118, 110, 0.94);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
  cursor: pointer;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 22px;
  font-weight: 760;
  line-height: 1;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 160ms ease, transform 160ms ease, background-color 160ms ease;
}

.note-back-to-top:hover,
.note-back-to-top:focus-visible {
  background: #0b5f59;
  outline: none;
  transform: translateY(6px);
}

.note-back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .note-shell {
    grid-template-columns: minmax(18px, 1fr) minmax(0, var(--note-width)) minmax(18px, 1fr);
  }

  .note-main {
    grid-column: 2;
  }

  .note-toc {
    display: none;
  }

  .note-back-to-top {
    right: 18px;
  }
}

@media (max-width: 700px) {
  body {
    font-size: 16px;
  }

  .note-topbar {
    grid-template-columns: minmax(68px, 1fr) minmax(0, auto) minmax(68px, 1fr);
    height: 52px;
    padding: 0 14px;
  }

  .note-brand,
  .note-current-title,
  .note-nav a {
    font-size: 12px;
  }

  .note-current-title {
    max-width: 42vw;
  }

  .note-shell {
    display: block;
    padding: 28px 18px 64px;
  }

  .note-article h1 {
    font-size: 30px;
  }

  .note-article h2 {
    font-size: 23px;
  }

  .note-figure-grid {
    grid-template-columns: 1fr;
  }

  .note-index-card-head {
    display: block;
  }

  .note-index-card time {
    display: block;
    margin-top: 4px;
  }

  .note-back-to-top {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .note-lightbox {
    padding: 64px 14px 22px;
  }

  .note-lightbox img {
    max-width: 96vw;
    max-height: calc(100vh - 92px);
  }

  .note-lightbox-close {
    top: 14px;
    right: 14px;
    width: 38px;
    height: 38px;
    font-size: 25px;
  }
}