:root {
  --color-paper: #FBF5EA;
  --color-panel: #FFFBF3;
  --color-panel-muted: #F1E8D8;
  --color-line: #DDD2BF;
  --color-accent: #6B2A5B;
  --color-accent-deep: #4A1B3E;
  --color-accent-soft: color-mix(in srgb, var(--color-accent) 11%, var(--color-panel));
  --color-ink: #2B2119;
  --color-muted: #6F6256;
  --color-success: #2E7D5B;
  --color-warning: #B9781C;
  --color-error: #B23A3A;
  --color-terminal: color-mix(in srgb, var(--color-ink) 94%, var(--color-accent));
  --color-terminal-text: var(--color-panel);
  --font-display: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --radius-xs: 0.375rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.625rem;
  --radius-pill: 999rem;
  --shadow-panel: 0 0.75rem 2rem color-mix(in srgb, var(--color-ink) 8%, transparent);
  --shadow-raised: 0 1rem 2.5rem color-mix(in srgb, var(--color-ink) 12%, transparent);
  --blog-column: 56rem;
  --blog-gutter: clamp(1.25rem, 4vw, 2rem);
  --blog-wide: 72rem;
  --blog-section-gap: clamp(3.5rem, 7vw, 6rem);
  --blog-card-gap: clamp(1rem, 2.5vw, 1.5rem);
  --blog-transition: 180ms ease;
  --blog-rule: 0.0625rem;
  --blog-accent-rule: 0.25rem;
  --blog-chrome-height: 2.25rem;
}

html {
  overflow-x: hidden;
}

body {
  color: var(--color-ink);
  background-color: var(--color-paper);
  background-image:
    radial-gradient(circle at center, color-mix(in srgb, var(--color-ink) 5%, transparent) 0 0.045rem, transparent 0.055rem);
  background-size: 0.4rem 0.4rem;
  font-family: var(--font-body);
  overflow-x: hidden;
}

.no-break {
  white-space: nowrap;
}

.blog-list-hero,
.blog-catalog-inner {
  width: min(100%, var(--blog-wide));
  margin-inline: auto;
  padding-inline: var(--blog-gutter);
}

.blog-list-hero {
  padding-top: clamp(4rem, 9vw, 7.5rem);
  padding-bottom: clamp(2.75rem, 6vw, 5rem);
}

.blog-list-hero-inner {
  position: relative;
  max-width: var(--blog-column);
  padding: clamp(2rem, 5vw, 4rem);
  overflow: hidden;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.blog-list-hero-inner::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: var(--blog-chrome-height);
  border-bottom: var(--blog-rule) solid var(--color-line);
  background:
    radial-gradient(circle, var(--color-accent) 0 0.22rem, transparent 0.24rem) 1rem center / 0.8rem 100% no-repeat,
    radial-gradient(circle, var(--color-line) 0 0.22rem, transparent 0.24rem) 1.8rem center / 0.8rem 100% no-repeat,
    radial-gradient(circle, var(--color-muted) 0 0.22rem, transparent 0.24rem) 2.6rem center / 0.8rem 100% no-repeat,
    var(--color-panel-muted);
}

.blog-list-hero .badge {
  margin-top: var(--blog-chrome-height);
}

.blog-list-hero h1 {
  max-width: 13ch;
  margin: 1.25rem 0 1rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 6vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
  text-wrap: pretty;
}

.blog-list-hero h1 .no-break:last-child {
  color: var(--color-accent);
}

.blog-list-hero p:last-child {
  max-width: 42rem;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.blog-catalog {
  padding-bottom: var(--blog-section-gap);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding-bottom: 1.5rem;
  border-bottom: var(--blog-rule) solid var(--color-line);
}

.filter-button {
  min-height: 2.5rem;
  padding: 0.55rem 1rem;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  background-color: var(--color-panel);
  font: 700 0.9rem/1 var(--font-body);
  cursor: pointer;
  transition:
    color var(--blog-transition),
    border-color var(--blog-transition),
    background-color var(--blog-transition),
    transform var(--blog-transition);
}

.filter-button:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-0.1rem);
}

.filter-button:focus-visible {
  outline: var(--blog-accent-rule) solid var(--color-accent-soft);
  outline-offset: 0.15rem;
}

.filter-button.is-active {
  color: var(--color-panel);
  border-color: var(--color-accent);
  background-color: var(--color-accent);
}

.catalog-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: clamp(2rem, 5vw, 3.5rem) 0 1.25rem;
}

.catalog-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.catalog-heading p {
  margin: 0;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

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

.article-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 19rem;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 2rem);
  overflow: hidden;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-panel);
  box-shadow: var(--shadow-panel);
  transition:
    transform var(--blog-transition),
    border-color var(--blog-transition),
    box-shadow var(--blog-transition);
}

.article-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: var(--blog-accent-rule);
  background-color: var(--color-accent);
  opacity: 0;
  transition: opacity var(--blog-transition);
}

.article-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 55%, var(--color-line));
  box-shadow: var(--shadow-raised);
  transform: translateY(-0.25rem);
}

.article-card:hover::before {
  opacity: 1;
}

.article-meta,
.related-card-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.65rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.article-tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  color: var(--color-panel);
  background-color: var(--color-accent);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 800;
}

.article-card h3,
.related-card h3 {
  margin: 1.2rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 850;
  letter-spacing: -0.015em;
  line-height: 1.42;
  text-wrap: pretty;
}

.article-card > p,
.related-card > p {
  margin: 0 0 1.5rem;
  color: var(--color-muted);
  line-height: 1.75;
}

.article-link {
  width: fit-content;
  margin-top: auto;
  color: var(--color-accent);
  font-weight: 800;
  text-decoration: none;
}

.article-link:hover {
  color: var(--color-accent-deep);
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

.blog-empty {
  margin: 2rem 0 0;
  padding: 2rem;
  border: var(--blog-rule) dashed var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  background-color: var(--color-panel);
  text-align: center;
}

/* Article column alignment */
.breadcrumb-wrap,
.article-hero,
.reading-wrap,
.promo-wrap,
#related-posts,
#post-nav {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-column) + (var(--blog-gutter) * 2));
  margin-inline: auto;
  padding-inline: var(--blog-gutter);
}

.breadcrumb-wrap {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

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

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb-separator {
  color: var(--color-line);
}

/* Split-meta article hero */
.article-hero {
  max-width: calc(var(--blog-column) + (var(--blog-gutter) * 2) + (clamp(1.75rem, 4vw, 3rem) * 2));
  margin-top: 1.25rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.article-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(11rem, 1fr);
  align-items: start;
  gap: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.75rem, 4vw, 3rem);
  overflow: hidden;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.article-hero-grid::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: var(--blog-chrome-height);
  border-bottom: var(--blog-rule) solid var(--color-line);
  background:
    radial-gradient(circle, var(--color-accent) 0 0.22rem, transparent 0.24rem) 1rem center / 0.8rem 100% no-repeat,
    radial-gradient(circle, var(--color-line) 0 0.22rem, transparent 0.24rem) 1.8rem center / 0.8rem 100% no-repeat,
    radial-gradient(circle, var(--color-muted) 0 0.22rem, transparent 0.24rem) 2.6rem center / 0.8rem 100% no-repeat,
    var(--color-panel-muted);
}

.article-hero-main,
.article-hero-meta {
  margin-top: var(--blog-chrome-height);
}

.article-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.18;
  text-wrap: pretty;
}

.article-hero-summary {
  margin: 0;
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-hero-meta {
  display: grid;
  gap: 0;
  padding: 0.2rem 1.1rem;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-panel-muted);
}

.article-hero-meta > * {
  display: block;
  padding-block: 0.9rem;
  border-bottom: var(--blog-rule) solid var(--color-line);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
}

.article-hero-meta > *:last-child {
  border-bottom: 0;
}

.article-hero-meta .article-tag {
  width: fit-content;
  margin-block: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-bottom: 0;
  color: var(--color-panel);
  font-family: var(--font-body);
}

/* Long-form article content */
.reading-wrap {
  max-width: calc(var(--blog-column) + (var(--blog-gutter) * 2));
  margin-inline: auto;
  padding-inline: var(--blog-gutter);
}

.article-body,
.post-content,
[data-article-body] {
  counter-reset: article-section;
  width: 100%;
  max-width: var(--blog-column);
  margin-inline: auto;
  color: var(--color-ink);
  font-size: 1rem;
  line-height: 1.85;
}

.article-body h2,
.post-content h2,
[data-article-body] h2 {
  counter-increment: article-section;
  position: relative;
  margin: 3.2rem 0 1.15rem;
  padding-top: 1rem;
  border-top: var(--blog-rule) solid var(--color-line);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.35;
  text-wrap: pretty;
}

.article-body h2::before,
.post-content h2::before,
[data-article-body] h2::before {
  content: counter(article-section, decimal-leading-zero) " / ";
  display: inline;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0;
}

.article-body h3,
.post-content h3,
[data-article-body] h3 {
  margin: 2.2rem 0 0.8rem;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.3rem);
  font-weight: 850;
  letter-spacing: -0.01em;
  line-height: 1.45;
  text-wrap: pretty;
}

.article-body p,
.post-content p,
[data-article-body] p {
  margin: 0 0 1.35rem;
}

.article-body ul,
.article-body ol,
.post-content ul,
.post-content ol,
[data-article-body] ul,
[data-article-body] ol {
  margin: 1rem 0 1.5rem;
  padding-left: 1.4rem;
}

.article-body li,
.post-content li,
[data-article-body] li {
  margin-block: 0.55rem;
  padding-left: 0.25rem;
}

.article-body a,
.post-content a,
[data-article-body] a {
  color: var(--color-accent);
  text-decoration-thickness: var(--blog-rule);
  text-underline-offset: 0.2rem;
}

.article-body a:hover,
.post-content a:hover,
[data-article-body] a:hover {
  color: var(--color-accent-deep);
}

.article-body blockquote,
.post-content blockquote,
[data-article-body] blockquote {
  margin: 1.75rem 0;
  padding: 1.25rem 1.5rem;
  border-left: var(--blog-accent-rule) solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-muted);
  background-color: var(--color-accent-soft);
}

.article-body blockquote p:last-child,
.post-content blockquote p:last-child,
[data-article-body] blockquote p:last-child {
  margin-bottom: 0;
}

/* Rich article components */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr));
  gap: 0.85rem;
  margin: 1.75rem 0;
}

.stat-card {
  position: relative;
  min-width: 0;
  padding: 1.25rem;
  overflow: hidden;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-panel);
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: var(--blog-accent-rule);
  background-color: var(--color-accent);
}

.stat-card:nth-child(even) {
  background-color: var(--color-panel-muted);
}

.stat-card:nth-child(3n)::before {
  background-color: var(--color-success);
}

.stat-num {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 900;
  line-height: 1.2;
}

.stat-card:nth-child(3n) .stat-num {
  color: var(--color-success);
}

.stat-label {
  display: block;
  color: var(--color-muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

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

.check-list li {
  margin: 0;
  padding: 0.85rem 1rem;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-xs);
  background-color: var(--color-panel);
}

.verdict {
  margin: 1.75rem 0;
  padding: 1.15rem 1.35rem;
  border-left: var(--blog-accent-rule) solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background-color: var(--color-accent-soft);
}

.verdict strong:first-child {
  color: var(--color-accent-deep);
}

.callout {
  position: relative;
  margin: 1.75rem 0;
  padding: 1.2rem 1.35rem 1.2rem 3.6rem;
  border: var(--blog-rule) solid var(--color-line);
  border-left: var(--blog-accent-rule) solid var(--color-accent);
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-soft);
}

.callout::before {
  content: "i";
  position: absolute;
  top: 1.15rem;
  left: 1.15rem;
  display: grid;
  width: 1.55rem;
  height: 1.55rem;
  place-items: center;
  border-radius: var(--radius-pill);
  color: var(--color-panel);
  background-color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 800;
}

.callout.warning {
  border-left-color: var(--color-warning);
  background-color: color-mix(in srgb, var(--color-warning) 12%, var(--color-panel));
}

.callout.warning::before {
  content: "!";
  background-color: var(--color-warning);
}

.callout.success {
  border-left-color: var(--color-success);
  background-color: color-mix(in srgb, var(--color-success) 12%, var(--color-panel));
}

.callout.success::before {
  content: "✓";
  background-color: var(--color-success);
}

.article-body pre,
.post-content pre,
[data-article-body] pre {
  position: relative;
  max-width: 100%;
  margin: 1.75rem 0;
  padding: 3rem 1.25rem 1.25rem;
  overflow-x: auto;
  border: var(--blog-rule) solid color-mix(in srgb, var(--color-terminal-text) 16%, transparent);
  border-radius: var(--radius-sm);
  color: var(--color-terminal-text);
  background-color: var(--color-terminal);
  box-shadow: var(--shadow-panel);
}

.article-body pre::before,
.post-content pre::before,
[data-article-body] pre::before {
  content: "TERMINAL";
  position: absolute;
  inset: 0 0 auto;
  padding: 0.65rem 1rem;
  border-bottom: var(--blog-rule) solid color-mix(in srgb, var(--color-terminal-text) 18%, transparent);
  color: color-mix(in srgb, var(--color-terminal-text) 68%, transparent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.article-body code,
.post-content code,
[data-article-body] code {
  padding: 0.12rem 0.32rem;
  border-radius: var(--radius-xs);
  color: var(--color-accent-deep);
  background-color: var(--color-panel-muted);
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.article-body pre code,
.post-content pre code,
[data-article-body] pre code {
  padding: 0;
  color: inherit;
  background: none;
  font-size: 0.86rem;
  line-height: 1.75;
}

.table-scroll,
.comparison-table-wrap,
.article-body .table-wrap,
.post-content .table-wrap,
[data-article-body] .table-wrap {
  max-width: 100%;
  margin: 1.75rem 0;
  overflow-x: auto;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-sm);
}

.article-body table,
.post-content table,
[data-article-body] table {
  width: 100%;
  min-width: 36rem;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.article-body th,
.post-content th,
[data-article-body] th {
  padding: 0.85rem 1rem;
  border: var(--blog-rule) solid var(--color-accent-deep);
  color: var(--color-panel);
  background-color: var(--color-accent-deep);
  text-align: left;
  white-space: nowrap;
}

.article-body td,
.post-content td,
[data-article-body] td {
  padding: 0.85rem 1rem;
  border: var(--blog-rule) solid var(--color-line);
  vertical-align: top;
}

.article-body tbody tr:nth-child(even),
.post-content tbody tr:nth-child(even),
[data-article-body] tbody tr:nth-child(even) {
  background-color: var(--color-panel-muted);
}

.article-body tbody tr:hover,
.post-content tbody tr:hover,
[data-article-body] tbody tr:hover {
  background-color: var(--color-accent-soft);
}

/* Conversion block */
.promo-wrap {
  margin-top: clamp(3rem, 7vw, 5rem);
}

.promo-block {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  overflow: hidden;
  border: var(--blog-rule) solid var(--color-accent-deep);
  border-radius: var(--radius-md);
  color: var(--color-panel);
  background:
    linear-gradient(125deg, var(--color-accent-deep), var(--color-accent));
  box-shadow: var(--shadow-raised);
}

.promo-block::before,
.promo-block::after {
  content: "";
  position: absolute;
  width: 7rem;
  height: var(--blog-rule);
  background-color: color-mix(in srgb, var(--color-panel) 45%, transparent);
}

.promo-block::before {
  top: 1rem;
  right: 1.25rem;
}

.promo-block::after {
  right: 3rem;
  bottom: 1rem;
}

.promo-block > * {
  position: relative;
  z-index: 1;
}

.promo-block h2 {
  margin: 0 0 0.55rem;
  color: var(--color-panel);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  font-weight: 900;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.promo-block p {
  margin: 0;
  color: color-mix(in srgb, var(--color-panel) 86%, transparent);
  line-height: 1.7;
}

.promo-block .btn-primary {
  flex: 0 0 auto;
  color: var(--color-accent-deep);
  border-color: var(--color-panel);
  background-color: var(--color-panel);
}

.promo-block .btn-primary:hover {
  color: var(--color-accent);
  border-color: var(--color-panel-muted);
  background-color: var(--color-panel-muted);
}

.promo-block .btn.btn-secondary {
  color: var(--color-accent-deep);
  border-color: var(--color-panel);
  background-color: var(--color-panel);
}

.promo-block .btn.btn-secondary:hover {
  color: var(--color-accent);
  border-color: var(--color-panel-muted);
  background-color: var(--color-panel-muted);
}

/* Related posts and post navigation */
#related-posts {
  padding-top: clamp(2.5rem, 5vw, 4rem);
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  font-weight: 900;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.related-card {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1.2rem;
  overflow: hidden;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-panel);
  transition:
    transform var(--blog-transition),
    border-color var(--blog-transition),
    box-shadow var(--blog-transition);
}

.related-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: var(--blog-accent-rule);
  background-color: var(--color-accent);
  opacity: 0;
  transition: opacity var(--blog-transition);
}

.related-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-panel);
  transform: translateY(-0.2rem);
}

.related-card:hover::before {
  opacity: 1;
}

.related-card h3 {
  font-size: 1.05rem;
}

.related-card > p {
  font-size: 0.9rem;
}

#post-nav {
  padding-top: 1.5rem;
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.post-nav-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.post-nav-card {
  position: relative;
  display: grid;
  gap: 0.55rem;
  min-width: 0;
  padding: 1.2rem;
  overflow: hidden;
  border: var(--blog-rule) solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  background-color: var(--color-panel);
  text-decoration: none;
  transition:
    transform var(--blog-transition),
    border-color var(--blog-transition),
    box-shadow var(--blog-transition);
}

.post-nav-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: var(--blog-accent-rule);
  background-color: var(--color-accent);
  opacity: 0;
  transition: opacity var(--blog-transition);
}

.post-nav-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-panel);
  transform: translateY(-0.2rem);
}

.post-nav-card:hover::before {
  opacity: 1;
}

.post-nav-label {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.post-nav-card strong {
  font-size: 0.98rem;
  line-height: 1.55;
}

/* Article-only floating CTA component */
.float-cta {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  max-width: calc(100vw - 2rem);
  min-height: 3rem;
  padding: 0.65rem 1rem;
  border: var(--blog-rule) solid var(--color-accent);
  border-radius: var(--radius-pill);
  color: var(--color-panel);
  background-color: var(--color-accent);
  box-shadow: var(--shadow-raised);
  font-weight: 800;
  text-decoration: none;
  transition:
    transform var(--blog-transition),
    background-color var(--blog-transition);
}

.float-cta:hover {
  background-color: var(--color-accent-deep);
  transform: translateY(-0.15rem);
}

.float-cta svg {
  width: 1.15rem;
  height: 1.15rem;
  flex: 0 0 auto;
  color: currentColor;
}

@media (max-width: 860px) {
  .article-hero-grid {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .article-hero-main {
    order: 2;
    margin-top: 0;
  }

  .article-hero-meta {
    order: 1;
    display: flex;
    width: 100%;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--blog-chrome-height);
    padding: 0.75rem;
  }

  .article-hero-meta > * {
    width: auto;
    padding: 0.35rem 0.65rem;
    border: var(--blog-rule) solid var(--color-line);
    border-radius: var(--radius-pill);
  }

  .article-hero-meta .article-tag {
    margin: 0;
    border-color: var(--color-accent);
  }

  .article-body table,
  .post-content table,
  [data-article-body] table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .article-grid {
    grid-template-columns: 1fr;
  }

  .article-card {
    min-height: auto;
  }

  .promo-block {
    align-items: flex-start;
    flex-direction: column;
  }

  .promo-block .no-break {
    white-space: normal;
  }

  .post-nav-grid {
    grid-template-columns: 1fr;
  }

  .float-cta {
    right: 0.75rem;
    bottom: 0.75rem;
    min-height: 2.75rem;
    padding: 0.55rem 0.85rem;
    font-size: 0.88rem;
  }
}

@media (max-width: 480px) {
  .blog-list-hero h1 {
    font-size: clamp(2rem, 10vw, 2.5rem);
  }

  .blog-list-hero-inner,
  .article-hero-grid {
    padding-inline: 1.5rem;
  }

  .catalog-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }

  .filter-bar {
    flex-wrap: nowrap;
    margin-inline: calc(var(--blog-gutter) * -1);
    padding-inline: var(--blog-gutter);
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .filter-button {
    flex: 0 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .filter-button,
  .article-card,
  .article-card::before,
  .related-card,
  .related-card::before,
  .post-nav-card,
  .post-nav-card::before,
  .float-cta {
    scroll-behavior: auto;
    transition: none;
  }

  .filter-button:hover,
  .article-card:hover,
  .related-card:hover,
  .post-nav-card:hover,
  .float-cta:hover {
    transform: none;
  }
}