:root {
  --text: #24292f;
  --muted: #6b7280;
  --border: #e5e7eb;
  --link: #0b5cad;
  --bg: #ffffff;
  --code-bg: #f6f8fa;
}

html {
  font-size: 16px;
}

body {
  max-width: none;
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

a {
  color: var(--link);
}

.wrap {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header and footer */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  margin-bottom: 2.5rem;
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
}

.site-title {
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  font-size: 0.92rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--link);
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
}

.icp {
  color: var(--muted);
  text-decoration: none;
}

.icp:hover {
  color: var(--link);
  text-decoration: underline;
}

/* Home */
.home {
  margin-bottom: 2.5rem;
}

.home-title {
  margin: 0 0 0.35rem;
  color: var(--text);
  font-family: inherit;
  font-size: 2rem;
  line-height: 1.25;
  letter-spacing: 0.01em;
}

.home-desc {
  margin: 0;
  color: var(--muted);
}

.section-title {
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--muted);
}

/* Post lists */
.post-list {
  display: flex;
  flex-direction: column;
}

.post-item {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
}

.post-item:first-child {
  padding-top: 0;
}

.post-item-title {
  margin: 0 0 0.25rem;
  font-size: 1.2rem;
  line-height: 1.45;
  font-weight: 600;
}

.post-item-title a {
  color: var(--text);
  text-decoration: none;
}

.post-item-title a:hover {
  color: var(--link);
}

.post-meta {
  color: var(--muted);
  font-size: 0.875rem;
}

.post-meta a {
  color: var(--muted);
  text-decoration: none;
}

.post-meta a:hover {
  color: var(--link);
  text-decoration: underline;
}

.post-excerpt {
  margin: 0.45rem 0 0;
  color: #4b5563;
  font-size: 0.95rem;
  line-height: 1.65;
}

.more-link {
  margin-top: 1.5rem;
  font-size: 0.95rem;
}

/* Page headers */
.page-header {
  margin-bottom: 1.5rem;
}

.page-header h1 {
  margin: 0 0 0.25rem;
  color: var(--text);
  font-family: inherit;
  font-size: 1.75rem;
  line-height: 1.3;
}

.page-desc {
  margin: 0;
  color: var(--muted);
}

/* Article */
.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.post-header h1 {
  margin: 0 0 0.4rem;
  color: var(--text);
  font-family: inherit;
  font-size: 2rem;
  line-height: 1.3;
}

#content {
  max-width: none;
  margin: 0;
  padding: 0;
  color: var(--text);
  font-family: inherit;
  font-size: 1.02rem;
  line-height: 1.8;
}

#content > .sect1:first-child > h2:first-child,
#content > h2:first-child {
  margin-top: 0;
}

#content h1,
#content h2,
#content h3,
#content h4,
#content h5 {
  color: var(--text);
  font-family: inherit;
  line-height: 1.4;
}

#content h2 {
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  font-size: 1.45rem;
}

#content h3 {
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  font-size: 1.2rem;
}

#content h4 {
  margin-top: 1.6rem;
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

#content p {
  margin: 0 0 1rem;
}

#content img {
  max-width: 100%;
  height: auto;
}

#content .imageblock {
  margin: 1.5rem 0;
}

#content .imageblock > .content {
  text-align: center;
}

#content .imageblock .title,
#content .imageblock figcaption {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.875rem;
  text-align: center;
}

#content .listingblock {
  margin: 1.25rem 0;
}

#content pre {
  padding: 0.9rem 1rem;
  overflow-x: auto;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.875rem;
  line-height: 1.55;
}

#content pre code {
  background: none;
  padding: 0;
  border: 0;
  color: inherit;
}

#content code {
  padding: 0.15em 0.35em;
  background: var(--code-bg);
  border-radius: 4px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.88em;
}

#content table {
  width: 100%;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}

#content table th,
#content table td {
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--border);
}

#content table th {
  background: var(--code-bg);
}

#content blockquote {
  margin: 1.25rem 0;
  padding: 0.25rem 0 0.25rem 1rem;
  border-left: 3px solid var(--border);
  color: #4b5563;
}

#content ul,
#content ol {
  margin: 0 0 1rem 1.5rem;
  padding: 0;
}

#content li {
  margin-bottom: 0.35rem;
}

#content hr {
  height: 1px;
  margin: 2rem 0;
  background: var(--border);
  border: 0;
}

/* Tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  margin: 0;
}

.tag-list a {
  display: inline-block;
  padding: 0.3rem 0.65rem;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.9rem;
  text-decoration: none;
}

.tag-list a:hover {
  border-color: var(--link);
  color: var(--link);
}

.tag-count {
  margin-left: 0.25rem;
  color: var(--muted);
  font-size: 0.8rem;
}

/* Pagination */
.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
  margin: 2rem 0 0;
  padding: 0;
}

.pagination .page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  height: 2.15rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #fff;
  color: var(--text);
  font-size: 0.875rem;
  line-height: 1;
  text-decoration: none;
}

.pagination a.page-link:hover {
  border-color: var(--link);
  color: var(--link);
}

.pagination .page-icon {
  display: block;
  width: 0.95rem;
  height: 0.95rem;
  fill: currentColor;
}

.pagination .page-link.active {
  background: var(--text);
  border-color: var(--text);
  color: #fff;
}

.pagination .page-link.disabled {
  background: #fafafa;
  color: #c1c7d0;
  cursor: not-allowed;
}

@media (max-width: 600px) {
  .home-title {
    font-size: 1.65rem;
  }

  .post-header h1 {
    font-size: 1.6rem;
  }

  #content h2 {
    font-size: 1.3rem;
  }

  #content h3 {
    font-size: 1.12rem;
  }
}