:root {
  --bg: #fcfcfa;
  --bg-soft: #f4f3ef;
  --bg-code: #f3f2ec;
  --fg: #1c1b19;
  --fg-muted: #6d6a63;
  --fg-faint: #9a968e;
  --border: #e4e1da;
  --border-soft: #eeebe4;
  --accent: #2f5d8a;
  --accent-hover: #23486b;
  --mark: #fbf0c4;
  --selection: #dbe6f1;
  --easy: #2c7048;
  --easy-bg: #e9f3ec;
  --medium: #86601a;
  --medium-bg: #f7f0df;
  --hard: #9d4038;
  --hard-bg: #f8eae8;
  --plain: var(--fg-muted);
  --plain-bg: var(--bg-soft);
}
[data-scheme='dark'] {
  --bg: #191817;
  --bg-soft: #211f1d;
  --bg-code: #201e1c;
  --fg: #e6e3dd;
  --fg-muted: #9e9a92;
  --fg-faint: #6f6b64;
  --border: #302e2a;
  --border-soft: #262421;
  --accent: #85afd6;
  --accent-hover: #a4c6e6;
  --mark: #4a3f18;
  --selection: #2b3a49;
  --easy: #7cc094;
  --easy-bg: #1a2921;
  --medium: #d3a95f;
  --medium-bg: #2c2417;
  --hard: #e08c83;
  --hard-bg: #2e1e1c;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
}
@media (min-width: 40rem) {
  html {
    font-size: 18px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
::selection {
  background: var(--selection);
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--accent-hover);
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  z-index: 10;
}
.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}
.wrap {
  max-width: 39rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.main {
  min-height: 60vh;
}
.empty {
  color: var(--fg-faint);
  padding: 3rem 0;
  text-align: center;
}
.scheme-toggle {
  appearance: none;
  background: none;
  border: 0;
  padding: 0;
  margin: 0;
  cursor: pointer;
  color: var(--fg-faint);
  line-height: 0;
  align-self: center;
  transition: color 0.15s ease;
}
.scheme-toggle:hover {
  color: var(--fg);
}
.scheme-toggle svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
}
.scheme-toggle .i-moon {
  display: none;
}
[data-scheme='dark'] .scheme-toggle .i-sun {
  display: none;
}
[data-scheme='dark'] .scheme-toggle .i-moon {
  display: inline;
}
.site-body {
  padding-top: 3.5rem;
}
.site-footer {
  margin-top: 6rem;
  padding: 2rem 0 4rem;
  border-top: 1px solid var(--border-soft);
  font-size: 0.85rem;
  color: var(--fg-faint);
}
.site-footer p {
  margin: 0.4rem 0;
}
.site-footer a {
  color: var(--fg-muted);
}
.site-footer a:hover {
  color: var(--accent);
}
.footer-social {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.site-footer .sep {
  padding: 0 0.15rem;
}
.tag {
  display: inline-block;
  vertical-align: 0.12em;
  font-size: 0.68rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.03em;
  padding: 0.1rem 0.42rem;
  border-radius: 3px;
  white-space: nowrap;
  background: var(--plain-bg);
  color: var(--plain);
}
a.tag:hover {
  filter: brightness(0.96);
}
[data-scheme='dark'] a.tag:hover {
  filter: brightness(1.25);
}
.tag--easy {
  background: var(--easy-bg);
  color: var(--easy);
}
.tag--medium {
  background: var(--medium-bg);
  color: var(--medium);
}
.tag--hard {
  background: var(--hard-bg);
  color: var(--hard);
}
.paginator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-soft);
  font-size: 0.9rem;
}
.paginator a,
.paginator .page-number,
.paginator .space {
  color: var(--fg-muted);
  padding: 0.15rem 0.2rem;
}
.paginator a:hover {
  color: var(--accent);
}
.paginator .page-number.current {
  color: var(--fg);
  font-weight: 600;
}
.site-sidebar {
  padding: 2.5rem 1.5rem 1.5rem;
}
.sidebar-inner {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  height: 100%;
}
.site-avatar {
  display: block;
  width: 5.5rem;
  height: 5.5rem;
  margin-bottom: 0.9rem;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--border);
  transition: box-shadow 0.15s ease;
}
.site-avatar:hover {
  box-shadow: 0 0 0 1px var(--fg-faint);
}
.site-avatar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.site-title {
  display: block;
  font-size: 1.15rem;
  font-weight: 650;
  letter-spacing: 0.01em;
  line-height: 1.4;
  color: var(--fg);
}
.site-title:hover {
  color: var(--accent);
}
.site-tagline {
  margin: 0.3rem 0 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--fg-faint);
}
.site-nav {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  font-size: 0.9rem;
}
.site-nav a {
  display: block;
  padding: 0.3rem 0;
  color: var(--fg-muted);
}
.site-nav a:hover {
  color: var(--fg);
}
.sidebar-foot {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 1.5rem;
  font-size: 0.82rem;
}
.sidebar-social {
  color: var(--fg-faint);
}
.sidebar-social:hover {
  color: var(--accent);
}
@media (min-width: 64rem) {
  .site-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 15rem;
    padding: 3.5rem 1.75rem 2rem;
    border-right: 1px solid var(--border-soft);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .site-body {
    margin-left: 15rem;
  }
}
@media (max-width: 63.99rem) {
  .site-sidebar {
    border-bottom: 1px solid var(--border-soft);
  }
  .sidebar-inner {
    max-width: 39rem;
    margin: 0 auto;
    gap: 1.1rem;
  }
  .site-id {
    display: flex;
    align-items: center;
    gap: 0.9rem;
  }
  .site-avatar {
    flex: none;
    width: 3.1rem;
    height: 3.1rem;
    margin-bottom: 0;
  }
  .site-title {
    font-size: 1.05rem;
  }
  .site-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.35rem 1.15rem;
  }
  .site-nav a {
    padding: 0;
  }
  .sidebar-foot {
    margin-top: 0;
    padding-top: 0;
  }
  .site-body {
    padding-top: 2.5rem;
  }
}
.entry {
  padding: 1.6rem 0;
}
.entry-list > .entry + .entry {
  border-top: 1px solid var(--border-soft);
}
.entry-list--pinned {
  padding-bottom: 1.7rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-soft);
}
.entry-list--pinned .entry {
  padding: 0 0 1.3rem;
}
.entry-list--pinned .entry:last-child {
  padding-bottom: 0;
}
.entry-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.3rem;
}
.entry-date {
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--fg-faint);
  font-variant-numeric: tabular-nums;
}
.entry-pin {
  font-size: 0.68rem;
  color: var(--fg-faint);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0 0.3rem;
  line-height: 1.5;
}
.entry-title {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.01em;
}
.entry-title a {
  color: var(--fg);
}
.entry-title a:hover {
  color: var(--accent);
}
.entry-title .tag {
  margin-left: 0.45rem;
}
.entry-excerpt {
  margin: 0.35rem 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--fg-muted);
}
.list-header {
  padding-bottom: 1.75rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-soft);
}
.list-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.list-count {
  margin: 0.3rem 0 0;
  font-size: 0.85rem;
  color: var(--fg-faint);
}
.archive-year {
  margin-top: 2.5rem;
}
.archive-year-label {
  margin: 0 0 0.75rem;
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
}
.archive-year-label .tag {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
}
.tag-count {
  font-size: 0.72rem;
  color: var(--fg-faint);
  margin-left: 0.35rem;
}
.archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.archive-item {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.3rem 0;
  line-height: 1.6;
}
.archive-item time {
  flex: none;
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-size: 0.76rem;
  color: var(--fg-faint);
  font-variant-numeric: tabular-nums;
}
.archive-item > a {
  color: var(--fg);
  font-size: 0.98rem;
}
.archive-item > a:hover {
  color: var(--accent);
}
.post-header {
  padding-bottom: 2rem;
  margin-bottom: 2.25rem;
  border-bottom: 1px solid var(--border-soft);
}
.post-title {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 650;
  line-height: 1.4;
  letter-spacing: 0.005em;
}
@media (min-width: 40rem) {
  .post-title {
    font-size: 1.9rem;
  }
}
.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--fg-faint);
}
.post-meta time {
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-variant-numeric: tabular-nums;
}
.post-meta .sep {
  color: var(--border);
}
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-soft);
}
.post-nav-item {
  display: block;
}
.post-nav-next {
  text-align: right;
}
.post-nav-label {
  display: block;
  font-size: 0.75rem;
  color: var(--fg-faint);
  margin-bottom: 0.15rem;
}
.post-nav-title {
  display: block;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--fg);
}
.post-nav-item:hover .post-nav-title {
  color: var(--accent);
}
@media (max-width: 32rem) {
  .post-nav {
    grid-template-columns: 1fr;
  }
  .post-nav-next {
    text-align: left;
  }
}
.post-toc {
  display: none;
}
@media (min-width: 90rem) {
  .post-toc {
    display: block;
    position: fixed;
    top: 8rem;
    left: calc(50vw + 29.5rem);
    width: calc(50vw - 31rem);
    max-width: 15rem;
    max-height: calc(100vh - 12rem);
    overflow-y: auto;
    overscroll-behavior: contain;
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--fg-muted);
    opacity: 0.55;
    transition: opacity 0.2s ease;
  }
  .post-toc:hover {
    opacity: 1;
  }
  .post-toc::-webkit-scrollbar {
    width: 4px;
  }
  .post-toc::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
  }
}
.post-toc-title {
  margin: 0 0 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.post-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
.post-toc ol ol {
  padding-left: 0.85rem;
}
.post-toc .toc-item {
  margin: 0.12rem 0;
}
.post-toc .toc-link {
  display: block;
  padding: 0.12rem 0 0.12rem 0.7rem;
  border-left: 2px solid transparent;
  color: var(--fg-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.post-toc .toc-link:hover {
  color: var(--fg);
}
.post-toc .toc-link.is-active {
  color: var(--fg);
  border-left-color: var(--accent);
}
.markdown {
  overflow-wrap: break-word;
  word-break: normal;
  line-break: normal;
}
.markdown > *:first-child {
  margin-top: 0;
}
.markdown > *:last-child {
  margin-bottom: 0;
}
.markdown p {
  margin: 0 0 1.15em;
}
.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4,
.markdown h5,
.markdown h6 {
  margin: 2.4em 0 0.8em;
  font-weight: 650;
  line-height: 1.45;
  letter-spacing: 0.005em;
  scroll-margin-top: 1.5rem;
}
.markdown h1 {
  font-size: 1.5rem;
}
.markdown h2 {
  font-size: 1.25rem;
  padding-bottom: 0.35em;
  border-bottom: 1px solid var(--border-soft);
}
.markdown h3 {
  font-size: 1.08rem;
}
.markdown h4 {
  font-size: 1rem;
}
.markdown h5,
.markdown h6 {
  font-size: 0.92rem;
  color: var(--fg-muted);
}
.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4 {
  position: relative;
}
.markdown .headerlink {
  position: absolute;
  left: -1.05em;
  width: 1.05em;
  text-align: left;
  font-weight: 400;
  color: var(--fg-faint);
  text-decoration: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.markdown .headerlink::before {
  content: '#';
}
.markdown h1:hover .headerlink,
.markdown h2:hover .headerlink,
.markdown h3:hover .headerlink,
.markdown h4:hover .headerlink,
.markdown .headerlink:focus-visible {
  opacity: 1;
}
@media (max-width: 46rem) {
  .markdown .headerlink {
    display: none;
  }
}
.markdown a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  text-decoration-color: var(--border);
  transition: text-decoration-color 0.15s ease, color 0.15s ease;
}
.markdown a:hover {
  text-decoration-color: currentColor;
}
.markdown ul,
.markdown ol {
  margin: 0 0 1.15em;
  padding-left: 1.5em;
}
.markdown li {
  margin: 0.3em 0;
}
.markdown li > ul,
.markdown li > ol {
  margin: 0.3em 0;
}
.markdown ul {
  list-style: disc;
}
.markdown ul ul {
  list-style: circle;
}
.markdown ol {
  list-style: decimal;
}
.markdown li::marker {
  color: var(--fg-faint);
}
.markdown li.task-list-item {
  list-style: none;
  margin-left: -1.35em;
}
.markdown li.task-list-item input {
  margin-right: 0.45em;
  accent-color: var(--accent);
}
.markdown blockquote {
  margin: 1.5em 0;
  padding: 0.1em 0 0.1em 1.1em;
  border-left: 2px solid var(--border);
  color: var(--fg-muted);
}
.markdown blockquote > *:last-child {
  margin-bottom: 0;
}
.markdown hr {
  height: 0;
  margin: 2.75em 0;
  border: 0;
  border-top: 1px solid var(--border-soft);
}
.markdown strong {
  font-weight: 650;
}
.markdown mark {
  background: var(--mark);
  color: inherit;
  padding: 0.05em 0.15em;
  border-radius: 2px;
}
.markdown del {
  color: var(--fg-faint);
}
.markdown kbd {
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-size: 0.85em;
  padding: 0.1em 0.4em;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--bg-soft);
}
.markdown abbr[title] {
  text-decoration: underline dotted;
  cursor: help;
}
.markdown img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.75em auto;
  border-radius: 4px;
}
.markdown .post-figure {
  margin: 1.75em 0;
  text-align: center;
}
.markdown .post-figure img {
  margin: 0 auto;
  max-width: 100%;
  max-height: 26rem;
  width: auto;
  height: auto;
  border-radius: 5px;
}
.markdown .post-figure figcaption {
  margin-top: 0.65em;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--fg-faint);
  text-align: center;
}
.markdown table {
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 1.75em 0;
  font-size: 0.9rem;
  line-height: 1.6;
}
.markdown th,
.markdown td {
  padding: 0.5em 0.9em;
  border-bottom: 1px solid var(--border-soft);
  text-align: left;
  white-space: nowrap;
}
.markdown th {
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
}
.markdown tbody tr:last-child td {
  border-bottom: 0;
}
.markdown .footnotes {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid var(--border-soft);
  font-size: 0.88rem;
  color: var(--fg-muted);
}
.markdown sup a {
  text-decoration: none;
}
.markdown details {
  margin: 1.5em 0;
  padding: 0.8em 1.1em;
  background: var(--bg-soft);
  border-radius: 4px;
}
.markdown summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--fg);
}
.markdown details[open] summary {
  margin-bottom: 0.8em;
}
:root {
  --code-comment: #8a867e;
  --code-keyword: #8a4b7a;
  --code-string: #3f6b46;
  --code-number: #9a5f2b;
  --code-title: #2f5d8a;
  --code-meta: #7b7268;
}
[data-scheme='dark'] {
  --code-comment: #6f6b63;
  --code-keyword: #c691b4;
  --code-string: #9fc48f;
  --code-number: #d9a06a;
  --code-title: #85afd6;
  --code-meta: #9a9188;
}
.markdown code {
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-size: 0.86em;
  font-variant-ligatures: none;
}
.markdown :not(pre) > code {
  padding: 0.12em 0.35em;
  background: var(--bg-code);
  border-radius: 3px;
  color: var(--fg);
  word-break: break-word;
}
.markdown pre {
  margin: 1.75em 0;
  padding: 1em 1.15em;
  background: var(--bg-code);
  border-radius: 5px;
  overflow-x: auto;
  font-size: 0.86rem;
  line-height: 1.65;
  tab-size: 2;
}
.markdown pre code {
  font-size: 1em;
  background: none;
  padding: 0;
  color: var(--fg);
}
.markdown figure.highlight {
  position: relative;
  margin: 1.75em 0;
  background: var(--bg-code);
  border-radius: 5px;
  overflow: hidden;
  font-size: 0.86rem;
  line-height: 1.65;
}
.markdown figure.highlight pre {
  margin: 0;
  padding: 0;
  background: none;
  border-radius: 0;
  overflow: visible;
}
.markdown figure.highlight table {
  display: table;
  width: 100%;
  margin: 0;
  border: 0;
  font-size: 1em;
}
.markdown figure.highlight td {
  padding: 1em 0;
  border: 0;
  white-space: normal;
  vertical-align: top;
}
.markdown figure.highlight .gutter {
  width: 1px;
  padding-left: 1.15em;
  padding-right: 0.9em;
  text-align: right;
  user-select: none;
  color: var(--fg-faint);
  opacity: 0.6;
}
.markdown figure.highlight .code {
  padding-right: 1.15em;
  width: 100%;
  overflow-x: auto;
}
.markdown figure.highlight .line {
  display: block;
}
.markdown figure.highlight br {
  display: none;
}
.markdown figure.highlight figcaption {
  padding: 0.5em 1.15em;
  margin: 0;
  text-align: left;
  font-size: 0.78rem;
  color: var(--fg-faint);
  border-bottom: 1px solid var(--border-soft);
}
.markdown figure.highlight figcaption a {
  float: right;
}
.markdown .comment,
.markdown .quote,
.markdown .hljs-comment,
.markdown .hljs-quote {
  color: var(--code-comment);
  font-style: italic;
}
.markdown .keyword,
.markdown .selector-tag,
.markdown .literal,
.markdown .hljs-keyword,
.markdown .hljs-selector-tag,
.markdown .hljs-literal {
  color: var(--code-keyword);
}
.markdown .string,
.markdown .regexp,
.markdown .addition,
.markdown .hljs-string,
.markdown .hljs-regexp,
.markdown .hljs-addition {
  color: var(--code-string);
}
.markdown .number,
.markdown .built_in,
.markdown .type,
.markdown .hljs-number,
.markdown .hljs-built_in,
.markdown .hljs-type {
  color: var(--code-number);
}
.markdown .title,
.markdown .section,
.markdown .attr,
.markdown .name,
.markdown .hljs-title,
.markdown .hljs-section,
.markdown .hljs-attr,
.markdown .hljs-name {
  color: var(--code-title);
}
.markdown .meta,
.markdown .doctag,
.markdown .params,
.markdown .hljs-meta,
.markdown .hljs-doctag,
.markdown .hljs-params {
  color: var(--code-meta);
}
.markdown .deletion,
.markdown .hljs-deletion {
  color: var(--hard);
}
.code-copy {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 1;
  appearance: none;
  font: inherit;
  font-size: 0.72rem;
  line-height: 1.6;
  padding: 0.1rem 0.5rem;
  color: var(--fg-faint);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease, color 0.15s ease;
}
.markdown pre:hover .code-copy,
.markdown figure.highlight:hover .code-copy,
.code-copy:focus-visible {
  opacity: 1;
}
.code-copy:hover {
  color: var(--fg);
}
.code-copy.is-done {
  color: var(--easy);
}
.markdown pre {
  position: relative;
}
.markdown .katex {
  font-size: 1.05em;
  color: inherit;
}
.markdown .katex-html {
  white-space: nowrap;
}
@media (max-width: 46rem) {
  .markdown .katex-html {
    white-space: normal;
  }
  .markdown .katex-display .katex-html {
    white-space: nowrap;
  }
}
.markdown .katex-display {
  margin: 1.4em 0;
  padding: 0.25em 0;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
}
.markdown .katex-display > .katex {
  white-space: nowrap;
  text-align: center;
}
.markdown .katex-display::-webkit-scrollbar {
  height: 5px;
}
.markdown .katex-display::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
.markdown p + .katex-display {
  margin-top: 1em;
}
.markdown li .katex-display {
  margin: 0.7em 0;
}
.markdown .katex-mathml {
  position: absolute;
  clip: rect(1px, 1px, 1px, 1px);
  padding: 0;
  border: 0;
  height: 1px;
  width: 1px;
  overflow: hidden;
}
#hexo-blog-encrypt {
  max-width: 24rem;
  margin: 2.5rem auto;
  padding: 1.75rem 1.5rem;
  overflow: visible;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  text-align: center;
}
#hexo-blog-encrypt .hbe-head {
  margin-bottom: 1.25rem;
}
#hexo-blog-encrypt .hbe-lock {
  fill: none;
  stroke: var(--fg-faint);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-bottom: 0.5rem;
}
#hexo-blog-encrypt .hbe-hint {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--fg-muted);
}
#hexo-blog-encrypt .hbe-content {
  padding: 0;
  font-size: 1rem;
  text-align: left;
}
#hexo-blog-encrypt .hbe-input {
  display: block;
  float: none;
  width: 100%;
  min-width: 0;
  margin: 0;
  overflow: visible;
}
#hexo-blog-encrypt .hbe-row {
  position: relative;
  display: block;
}
#hexo-blog-encrypt .hbe-input-field {
  display: block;
  float: none;
  width: 100%;
  opacity: 1;
  margin: 0;
  z-index: auto;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  padding: 0.7rem 4rem 0.7rem 0.9rem;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.15s ease;
}
#hexo-blog-encrypt .hbe-input-field:focus {
  outline: none;
  border-color: var(--accent);
}
#hexo-blog-encrypt .hbe-input-label {
  display: none;
}
#hexo-blog-encrypt .hbe-input-label::before,
#hexo-blog-encrypt .hbe-input-label::after {
  display: none;
}
#hexo-blog-encrypt .hbe-peek {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: 0.4rem;
  transform: translateY(-50%);
  appearance: none;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
  font-size: 0.8rem;
  line-height: 1;
  min-height: 2.1rem;
  padding: 0 0.6rem;
  color: var(--fg-faint);
  background: none;
  border: 0;
  border-radius: 4px;
  cursor: pointer;
}
#hexo-blog-encrypt .hbe-peek:hover {
  color: var(--fg);
}
#hexo-blog-encrypt .hbe-submit {
  display: block;
  width: 100%;
  margin-top: 0.75rem;
  appearance: none;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
  min-height: 2.75rem;
  padding: 0.6rem 1rem;
  color: var(--bg);
  background: var(--fg);
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  transition: opacity 0.15s ease;
}
#hexo-blog-encrypt .hbe-submit:hover {
  opacity: 0.85;
}
#hexo-blog-encrypt .hbe-submit:active {
  opacity: 0.7;
}
#hexo-blog-encrypt.is-unlocked {
  max-width: none;
  margin: 0;
  padding: 0;
  background: none;
  border: 0;
  text-align: left;
}
#hexo-blog-encrypt .hbe-button {
  display: inline-block;
  margin-top: 2.5rem;
  appearance: none;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
  font-size: 0.82rem;
  line-height: 1.5;
  padding: 0.35rem 0.85rem;
  color: var(--fg-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}
#hexo-blog-encrypt .hbe-button:hover {
  color: var(--fg);
  border-color: var(--fg-faint);
}
@media (max-width: 30rem) {
  #hexo-blog-encrypt {
    max-width: none;
    padding: 1.5rem 1.15rem;
  }
}
@media print {
  .site-header,
  .site-footer,
  .post-toc,
  .post-nav,
  .paginator,
  .code-copy,
  .skip-link {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }
  .wrap {
    max-width: none;
    padding: 0;
  }
  .markdown a {
    text-decoration: none;
  }
  .markdown pre,
  .markdown figure.highlight {
    background: #f6f6f6;
    white-space: pre-wrap;
  }
}