:root {
  --blog-column: 56rem;
  --blog-body-size: 1rem;
  --blog-small-size: 0.875rem;
  --blog-caption-size: 0.8125rem;
  --blog-list-title-size: clamp(2rem, 4vw, 3rem);
  --blog-article-title-size: clamp(1.875rem, 3.5vw, 2.6rem);
  --blog-h2-size: clamp(1.35rem, 2.2vw, 1.6rem);
  --blog-h3-size: clamp(1.125rem, 1.8vw, 1.3rem);
  --blog-stat-size: clamp(1.6rem, 3vw, 2.2rem);
  --blog-letter-spacing: 0em;
  --blog-line-height: 1.9;
  --blog-title-line-height: 1.4;
  --blog-muted-panel: color-mix(in srgb, var(--bg-panel) 80%, var(--bg-panel-2));
  --blog-hover-panel: color-mix(in srgb, var(--bg-panel) 82%, var(--block-lilac));
  --blog-success-tint: color-mix(in srgb, var(--success) 9%, var(--bg-panel));
  --blog-warning-tint: color-mix(in srgb, var(--warn) 12%, var(--bg-panel));
  --blog-code-bg: var(--accent-dark);
  --blog-code-text: var(--bg-panel);
  --blog-rule: color-mix(in srgb, var(--accent) 25%, var(--border));
  --blog-focus: color-mix(in srgb, var(--accent) 75%, var(--bg-panel));
  --blog-meta-bg: color-mix(in srgb, var(--bg-panel) 82%, var(--block-apricot));
  --blog-promo-bg: linear-gradient(125deg, var(--accent-dark), var(--accent));
  --blog-meta-rule: linear-gradient(90deg, var(--accent), var(--apricot));
  --blog-hero-wash: linear-gradient(180deg, var(--hero-top), var(--hero-bottom));
  --blog-r-card: var(--r-card);
  --blog-r-detail: var(--r-tile);
  --blog-r-pill: var(--r-pill);
  --blog-transition: var(--duration);
}

.blog-main {
  padding-bottom: 3rem;
}

.blog-column,
.article-hero,
.reading-wrap {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-column) + var(--gutter) + var(--gutter));
  padding-inline: var(--gutter);
  margin-inline: auto;
  min-width: 0;
}

.blog-skip {
  position: absolute;
  top: 0.75rem;
  left: var(--gutter);
  z-index: 100;
  padding: 0.75rem 1rem;
  color: var(--on-accent);
  background: var(--accent);
  border-radius: var(--blog-r-pill);
  transform: translateY(-200%);
  font-family: var(--font-body);
}

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

.blog-main a:focus-visible,
.article-hero a:focus-visible,
.reading-wrap a:focus-visible,
.blog-filter:focus-visible,
.float-cta:focus-visible {
  outline: 3px solid var(--blog-focus);
  outline-offset: 4px;
}

.breadcrumbs {
  padding-top: 1.5rem;
  padding-bottom: 1rem;
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.8;
  color: var(--text-muted);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.breadcrumbs li {
  min-width: 0;
  overflow-wrap: anywhere;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.65rem;
  color: var(--text-muted);
}

.breadcrumbs a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

.blog-hero {
  position: relative;
  padding-block: 2.5rem 3rem;
  text-align: center;
}

.blog-hero h1,
.article-hero h1,
.article-card h3,
.post-nav-title,
.prose h1,
.prose h2,
.prose h3,
.article-body h1,
.article-body h2,
.article-body h3 {
  display: block;
  text-wrap: pretty;
  letter-spacing: var(--blog-letter-spacing);
  overflow-wrap: anywhere;
  word-break: normal;
}

.blog-hero h1 {
  margin: 1rem 0;
  color: var(--accent-dark);
  font-family: var(--font-display);
  font-size: var(--blog-list-title-size);
  font-weight: var(--weight-normal);
  line-height: var(--blog-title-line-height);
}

.blog-hero > p {
  max-width: 40rem;
  margin: 0 auto;
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-line-height);
  color: var(--text-muted);
}

.blog-topic-shelf {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.blog-topic-shelf span {
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-detail);
  background: var(--bg-panel);
  box-shadow: inset 0 1px 0 var(--hl), var(--shadow-card);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
}

.blog-library {
  padding-block: 0.5rem 2.5rem;
}

.blog-library-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
}

.blog-library h2,
.related-heading {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: var(--blog-h2-size);
  font-weight: var(--weight-normal);
  line-height: 1.5;
  color: var(--accent-dark);
  text-wrap: pretty;
}

.blog-status {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.8;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0 0 1.5rem;
}

.blog-filter {
  appearance: none;
  min-height: 2.75rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-pill);
  background: var(--bg-panel);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  font-weight: var(--weight-medium);
  line-height: 1.5;
  cursor: pointer;
  transition: background var(--blog-transition), border-color var(--blog-transition), color var(--blog-transition);
}

.blog-filter:hover {
  border-color: var(--accent);
  background: var(--blog-hover-panel);
}

.blog-filter[aria-pressed="true"],
.blog-filter.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
}

.blog-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.article-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-card);
  background: var(--bg-panel);
  box-shadow: inset 0 1px 0 var(--hl), var(--shadow-card);
  transition: border-color var(--blog-transition), transform var(--blog-transition), box-shadow var(--blog-transition);
}

.article-card:hover,
.article-card:focus-within {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: inset 0 3px 0 var(--accent), var(--shadow-float-sm);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.9rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-caption-size);
  line-height: 1.7;
}

.article-meta time {
  font-family: var(--font-mono);
}

.article-meta .tag,
.article-meta-card .tag {
  display: inline-block;
  max-width: 100%;
  padding: 0.2rem 0.65rem;
  border: 1px solid var(--accent);
  border-radius: var(--blog-r-pill);
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-body);
  font-size: var(--blog-caption-size);
  line-height: 1.7;
  white-space: normal;
  overflow-wrap: anywhere;
}

.article-card h3 {
  margin: 0 0 0.8rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-h3-size);
  font-weight: var(--weight-normal);
  line-height: 1.6;
}

.article-card h3 a {
  color: inherit;
  text-decoration: none;
}

.article-card h3 a:hover {
  color: var(--accent);
}

.article-card .article-summary {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: 1.85;
  overflow-wrap: anywhere;
}

.article-card > .text-link {
  align-self: flex-start;
  margin-top: auto;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.8;
  text-underline-offset: 0.25em;
}

.blog-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  border: 1px dashed var(--blog-rule);
  border-radius: var(--blog-r-card);
  background: var(--bg-panel-2);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-line-height);
}

.blog-empty h3 {
  margin: 0 0 0.5rem;
  color: var(--text);
  font-size: var(--blog-h3-size);
}

.blog-empty p {
  margin: 0.5rem 0;
}

.blog-empty a {
  color: var(--accent);
}

.article-hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 1fr);
  align-items: start;
  column-gap: 2rem;
  row-gap: 1.25rem;
  padding-block: 1rem 1.75rem;
  text-align: left;
}

.article-hero-main,
.article-hero-content {
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
}

.article-hero h1 {
  margin: 0 0 1rem;
  color: var(--accent-dark);
  font-family: var(--font-display);
  font-size: var(--blog-article-title-size);
  font-weight: var(--weight-normal);
  line-height: var(--blog-title-line-height);
  text-align: left;
}

.article-hero .article-summary,
.article-hero .article-deck,
.article-hero-main > p,
.article-hero-content > p {
  margin: 0;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-line-height);
}

.article-meta-card,
.article-hero > .article-meta {
  position: relative;
  grid-column: 2;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 0.85rem;
  min-width: 0;
  margin: 0;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-detail);
  background: var(--blog-meta-bg);
  box-shadow: inset 0 1px 0 var(--hl), var(--shadow-card);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.article-meta-card::before,
.article-hero > .article-meta::before {
  content: "";
  display: block;
  width: 2.5rem;
  height: 3px;
  border-radius: var(--blog-r-pill);
  background: var(--blog-meta-rule);
}

.article-meta-card > time,
.article-meta-card > .read-time,
.article-meta-card > .article-readtime,
.article-hero > .article-meta > time,
.article-hero > .article-meta > .read-time {
  display: block;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border);
  font-size: var(--blog-caption-size);
}

.article-meta-card time,
.article-meta-card .read-time,
.article-meta-card .article-readtime {
  font-family: var(--font-body);
}

.reading-wrap {
  padding-block: 0 1.5rem;
}

.prose,
.article-body {
  counter-reset: blog-chapter;
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  font-weight: var(--weight-normal);
  line-height: var(--blog-line-height);
  overflow-wrap: anywhere;
}

.prose p,
.article-body p {
  margin: 0 0 1.15rem;
}

.prose h2,
.article-body h2 {
  position: relative;
  margin: 2.5rem 0 1rem;
  color: var(--accent-dark);
  font-family: var(--font-display);
  font-size: var(--blog-h2-size);
  font-weight: var(--weight-normal);
  line-height: 1.6;
  scroll-margin-top: var(--anchor-offset);
}

.prose h2::before,
.article-body h2::before {
  counter-increment: blog-chapter;
  content: counter(blog-chapter, decimal-leading-zero);
  display: inline-block;
  margin-right: 0.7rem;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--blog-rule);
  border-radius: var(--blog-r-detail);
  background: var(--block-lilac);
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  font-weight: var(--weight-medium);
  line-height: 1.8;
  vertical-align: 0.1em;
}

.prose > h2:first-child,
.prose > section:first-child > h2:first-child,
.article-body > h2:first-child,
.article-body > section:first-child > h2:first-child {
  margin-top: 0.5rem;
}

.prose h3,
.article-body h3 {
  margin: 1.75rem 0 0.75rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-h3-size);
  font-weight: var(--weight-strong);
  line-height: 1.7;
  scroll-margin-top: var(--anchor-offset);
}

.prose a,
.article-body a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.prose strong,
.article-body strong {
  color: var(--text);
  font-weight: var(--weight-strong);
}

.prose ul,
.prose ol,
.article-body ul,
.article-body ol {
  margin: 0 0 1.4rem;
  padding-left: 1.5rem;
}

.prose li,
.article-body li {
  margin-block: 0.45rem;
  padding-left: 0.15rem;
}

.prose hr,
.article-body hr {
  margin: 2rem 0;
  border: 0;
  border-top: 1px solid var(--border);
}

.prose img,
.article-body img,
.prose svg,
.article-body svg {
  max-width: 100%;
  height: auto;
}

.prose .table-scroll,
.article-body .table-scroll {
  max-width: 100%;
  min-width: 0;
  margin-block: 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-detail);
  background: var(--bg-panel);
  overscroll-behavior-inline: contain;
}

.prose table,
.article-body table {
  width: 100%;
  margin-block: 1.5rem;
  border-collapse: collapse;
  background: var(--bg-panel);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.8;
}

.prose .table-scroll table,
.article-body .table-scroll table {
  min-width: 38rem;
  margin: 0;
}

.prose caption,
.article-body caption {
  padding: 0.8rem 1rem;
  background: var(--bg-panel-2);
  color: var(--text-muted);
  text-align: left;
  font-size: var(--blog-small-size);
}

.prose th,
.prose td,
.article-body th,
.article-body td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  text-align: left;
}

.prose thead th,
.article-body thead th {
  background: var(--accent-dark);
  color: var(--on-accent);
  font-weight: var(--weight-medium);
}

.prose tbody tr:nth-child(even),
.article-body tbody tr:nth-child(even) {
  background: var(--blog-muted-panel);
}

.prose tbody tr:hover,
.article-body tbody tr:hover {
  background: var(--blog-hover-panel);
}

.prose code,
.article-body code {
  padding: 0.12em 0.35em;
  border-radius: var(--blog-r-detail);
  background: var(--bg-panel-2);
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  overflow-wrap: anywhere;
}

.prose pre,
.article-body pre {
  position: relative;
  max-width: 100%;
  box-sizing: border-box;
  margin: 1.5rem 0;
  padding: 3rem 1.5rem 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--accent);
  border-radius: var(--blog-r-detail);
  background: var(--blog-code-bg);
  color: var(--blog-code-text);
  box-shadow: var(--shadow-card);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  line-height: 1.8;
  tab-size: 2;
  overscroll-behavior-inline: contain;
}

.prose pre::before,
.article-body pre::before {
  content: "连接笔记 / COMMAND";
  position: absolute;
  top: 0.7rem;
  left: 1.5rem;
  color: var(--blog-code-text);
  font-family: var(--font-mono);
  font-size: var(--blog-caption-size);
  letter-spacing: 0.04em;
}

.prose pre code,
.article-body pre code {
  padding: 0;
  border: 0;
  border-radius: var(--blog-r-detail);
  background: var(--blog-code-bg);
  color: inherit;
  font-size: inherit;
  white-space: pre;
  overflow-wrap: normal;
  word-break: normal;
}

.prose blockquote,
.article-body blockquote,
.callout {
  position: relative;
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem 1.25rem 3.5rem;
  border: 1px solid var(--blog-rule);
  border-left: 4px solid var(--accent);
  border-radius: var(--blog-r-detail);
  background: var(--blog-hover-panel);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-line-height);
}

.prose blockquote::before,
.article-body blockquote::before,
.callout::before {
  content: "i";
  position: absolute;
  top: 1.35rem;
  left: 1rem;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid var(--accent);
  border-radius: var(--r-round);
  background: var(--bg-panel);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: var(--blog-small-size);
  font-weight: var(--weight-bold);
  line-height: 1.4rem;
  text-align: center;
}

.callout.warning,
.callout--warning,
.callout.is-warning {
  border-color: color-mix(in srgb, var(--warn) 40%, var(--border));
  border-left-color: var(--warn);
  background: var(--blog-warning-tint);
}

.callout.warning::before,
.callout--warning::before,
.callout.is-warning::before {
  content: "!";
  border-color: var(--warn);
  color: var(--text);
}

.callout.success,
.callout--success,
.callout.is-success {
  border-color: color-mix(in srgb, var(--success) 40%, var(--border));
  border-left-color: var(--success);
  background: var(--blog-success-tint);
}

.callout.success::before,
.callout--success::before,
.callout.is-success::before {
  border-color: var(--success);
  color: var(--success);
}

.callout > :last-child,
.prose blockquote > :last-child,
.article-body blockquote > :last-child {
  margin-bottom: 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.stat-card {
  position: relative;
  min-width: 0;
  padding: 1.5rem;
  border: 1px solid var(--blog-rule);
  border-top: 3px solid var(--accent);
  border-radius: var(--blog-r-detail);
  background: var(--block-lilac);
  box-shadow: inset 0 1px 0 var(--hl);
}

.stat-card:nth-child(even) {
  border-color: var(--border);
  border-top-color: var(--text-muted);
  background: var(--block-apricot);
}

.stat-num {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: var(--blog-stat-size);
  font-weight: var(--weight-medium);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.stat-label {
  display: block;
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.8;
}

.prose .check-list,
.article-body .check-list,
.check-list {
  display: grid;
  gap: 0.65rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.prose .check-list li,
.article-body .check-list li,
.check-list li {
  margin: 0;
  padding: 0.9rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-detail);
  background: var(--bg-panel);
  color: var(--text);
  line-height: var(--blog-line-height);
  list-style: none;
}

.verdict {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--blog-rule);
  border-left: 4px solid var(--accent);
  border-radius: var(--blog-r-detail);
  background: var(--blog-hover-panel);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-line-height);
}

.verdict strong:first-child {
  color: var(--accent-dark);
  font-weight: var(--weight-bold);
}

.verdict > :last-child {
  margin-bottom: 0;
}

.promo-block {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-sizing: border-box;
  margin-block: 2rem;
  padding: 2rem;
  border: 1px solid var(--accent);
  border-radius: var(--r-block);
  background: var(--blog-promo-bg);
  box-shadow: inset 0 1px 0 var(--hl-soft), var(--shadow-card);
  color: var(--on-accent);
  font-family: var(--font-body);
}

.promo-block.blog-column {
  width: calc(100% - var(--gutter) - var(--gutter));
  max-width: var(--blog-column);
}

.promo-block::before {
  content: "";
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  width: 2.5rem;
  height: 0.6rem;
  border-top: 1px solid var(--hl);
  border-bottom: 1px solid var(--hl-soft);
}

.promo-block h2,
.prose .promo-block h2,
.article-body .promo-block h2 {
  margin: 0 0 0.75rem;
  color: var(--on-accent);
  font-family: var(--font-display);
  font-size: var(--blog-h2-size);
  font-weight: var(--weight-normal);
  line-height: 1.6;
}

.prose .promo-block h2::before,
.article-body .promo-block h2::before {
  content: none;
  counter-increment: none;
}

.promo-block p {
  margin: 0;
  color: var(--on-accent);
  font-size: var(--blog-body-size);
  line-height: var(--blog-line-height);
}

.promo-block .promo-note {
  margin-top: 0.6rem;
  font-size: var(--blog-small-size);
}

.promo-block .button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
}

.promo-block .btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 2.85rem;
  box-sizing: border-box;
  padding: 0.7rem 1.3rem;
  border: 1px solid var(--bg-panel);
  border-radius: var(--blog-r-pill);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  font-weight: var(--weight-medium);
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
}

.promo-block .btn-solid,
.promo-block .btn-primary {
  background: var(--bg-panel);
  color: var(--accent-dark);
}

.promo-block .btn-line,
.promo-block .btn-secondary {
  background: var(--glow-clear);
  color: var(--on-accent);
}

.promo-block .btn:hover {
  box-shadow: inset 0 0 0 1px var(--bg-panel), var(--shadow-btn-sm);
}

#related-posts,
#post-nav {
  box-sizing: border-box;
  min-width: 0;
  margin-block: 0;
  padding-block: 1.25rem;
}

#related-posts:empty,
#post-nav:empty {
  display: none;
}

#related-posts > h2 {
  margin: 0 0 1rem;
  color: var(--accent-dark);
  font-family: var(--font-display);
  font-size: var(--blog-h2-size);
  font-weight: var(--weight-normal);
  line-height: 1.6;
}

.prose #related-posts > h2::before,
.article-body #related-posts > h2::before {
  content: none;
  counter-increment: none;
}

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

.related-card {
  padding: 1.25rem;
}

.related-card .article-meta {
  gap: 0.4rem;
}

.related-card h3 {
  margin-top: 0;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.post-nav-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-width: 0;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-card);
  background: var(--bg-panel);
  box-shadow: inset 0 1px 0 var(--hl);
  text-decoration: none;
  transition: border-color var(--blog-transition), transform var(--blog-transition), box-shadow var(--blog-transition);
}

.post-nav-card:hover,
.post-nav-card:focus-visible {
  border-color: var(--accent);
  box-shadow: inset 0 3px 0 var(--accent), var(--shadow-card);
  transform: translateY(-3px);
}

.post-nav-previous {
  grid-column: 1;
}

.post-nav-next {
  grid-column: 2;
}

.post-nav-label {
  color: var(--accent);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.7;
}

.post-nav-title {
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-h3-size);
  line-height: 1.6;
}

.post-nav-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  margin-top: auto;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-caption-size);
  line-height: 1.8;
}

.post-nav-meta time {
  font-family: var(--font-mono);
}

.float-cta {
  position: fixed;
  right: max(1.25rem, env(safe-area-inset-right));
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  z-index: 40;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  box-sizing: border-box;
  max-width: calc(100% - 2.5rem);
  min-height: 3rem;
  padding: 0.85rem 1.3rem;
  border: 1px solid var(--accent);
  border-radius: var(--blog-r-pill);
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: var(--shadow-float);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  font-weight: var(--weight-medium);
  line-height: 1.5;
  text-decoration: none;
}

.float-cta svg {
  flex: 0 0 auto;
  width: 1.2rem;
  height: 1.2rem;
  color: inherit;
}

.float-cta:hover {
  background: var(--accent-dark);
}

@media (max-width: 860px) {
  .related-grid {
    grid-template-columns: 1fr;
  }

  .article-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }

  .article-hero-main,
  .article-hero-content {
    grid-column: 1;
    grid-row: 2;
  }

  .article-meta-card,
  .article-hero > .article-meta {
    grid-column: 1;
    grid-row: 1;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem 0.85rem;
    padding: 1.5rem;
  }

  .article-meta-card::before,
  .article-hero > .article-meta::before {
    width: 1.25rem;
  }

  .article-meta-card > time,
  .article-meta-card > .read-time,
  .article-meta-card > .article-readtime,
  .article-hero > .article-meta > time,
  .article-hero > .article-meta > .read-time {
    padding-top: 0;
    border-top: 0;
  }

  .prose table,
  .article-body table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
  }

  .prose .table-scroll table,
  .article-body .table-scroll table {
    display: table;
    width: 100%;
    max-width: none;
    overflow: visible;
  }
}

@media (max-width: 640px) {
  .no-break {
    white-space: normal;
  }

  .blog-column,
  .article-hero,
  .reading-wrap {
    padding-inline: max(1rem, var(--gutter));
  }

  .blog-hero {
    padding-block: 1.75rem 2.25rem;
  }

  .blog-card-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .blog-topic-shelf {
    gap: 0.5rem;
  }

  .blog-topic-shelf span {
    padding: 0.65rem 0.8rem;
  }

  .article-card {
    padding: 1.25rem;
  }

  .article-hero {
    padding-block: 0.75rem 1.25rem;
  }

  .article-meta-card,
  .article-hero > .article-meta {
    gap: 0.5rem;
  }

  .prose h2,
  .article-body h2 {
    margin-top: 2rem;
  }

  .prose blockquote,
  .article-body blockquote,
  .callout {
    padding-right: 1rem;
    padding-left: 3.25rem;
  }

  .promo-block {
    padding: 1.5rem;
    margin-block: 1.5rem;
  }

  .promo-block.blog-column {
    width: calc(100% - max(1rem, var(--gutter)) - max(1rem, var(--gutter)));
  }

  #post-nav {
    grid-template-columns: minmax(0, 1fr);
  }

  .post-nav-previous,
  .post-nav-next {
    grid-column: 1;
  }

  .float-cta {
    right: max(1rem, env(safe-area-inset-right));
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    max-width: calc(100% - 2rem);
    min-height: 2.75rem;
    padding: 0.65rem 1rem;
    font-size: var(--blog-small-size);
  }

  body:has(.float-cta) {
    padding-bottom: calc(5rem + env(safe-area-inset-bottom));
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-filter,
  .article-card,
  .post-nav-card,
  .float-cta {
    transition: none;
    animation: none;
  }

  .article-card:hover,
  .article-card:focus-within,
  .post-nav-card:hover,
  .post-nav-card:focus-visible {
    transform: none;
  }

  .blog-main,
  .reading-wrap {
    scroll-behavior: auto;
  }
}