:root {
  --blog-reading-width: 56rem;
  --blog-card-shadow: 0 1.25rem 3rem color-mix(in srgb, var(--color-bg) 74%, transparent);
  --blog-fast-transition: 180ms ease;
  --blog-line-height: 1.85;
}

html:has(body.article-page),
body.article-page {
  max-width: 100%;
  overflow-x: hidden;
}

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

.blog-breadcrumb,
.post-breadcrumb {
  max-width: calc(var(--blog-reading-width) + (var(--gutter) * 2));
  margin-top: 1.5rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.blog-breadcrumb ol,
.post-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.blog-breadcrumb li,
.post-breadcrumb li {
  display: inline-flex;
  min-width: 0;
  max-width: 100%;
  align-items: center;
  gap: 0.55rem;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.blog-breadcrumb li + li::before,
.post-breadcrumb li + li::before {
  content: "/";
  color: var(--color-border);
}

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

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

.blog-list-hero {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.blog-list-hero .wrap {
  position: relative;
  overflow: hidden;
  padding: clamp(1.75rem, 5vw, 4rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--color-panel-raised) 92%, transparent),
      var(--color-panel)
    );
  box-shadow: var(--blog-card-shadow);
  isolation: isolate;
}

.blog-list-hero .wrap::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: 0.32;
  background-image:
    linear-gradient(
      color-mix(in srgb, var(--color-border) 42%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--color-border) 42%, transparent) 1px,
      transparent 1px
    );
  background-size: 2rem 2rem;
  mask-image: linear-gradient(90deg, transparent, var(--color-bg));
}

.blog-list-hero .wrap::after {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: clamp(4rem, 11vw, 8rem);
  aspect-ratio: 1;
  z-index: -1;
  content: "";
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  opacity: 0.28;
  box-shadow:
    -0.75rem 0.75rem 0 var(--color-panel-raised),
    -0.75rem 0.75rem 0 1px var(--color-border);
}

.section-index {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.blog-list-hero h1 {
  max-width: 14ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-wrap: pretty;
}

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

.blog-list-hero p {
  max-width: 42rem;
  margin: 1.25rem 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-muted);
}

.blog-fact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.5rem;
}

.blog-fact-row span {
  padding: 0.45rem 0.72rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-bg) 38%, transparent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text);
}

.blog-index-section {
  padding-block: 0 clamp(4rem, 8vw, 7rem);
}

.blog-index-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.blog-index-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}

.blog-filter .chip {
  appearance: none;
  cursor: pointer;
  padding: 0.52rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  font: 700 0.82rem/1 var(--font-body);
  color: var(--color-text-muted);
  transition:
    color var(--blog-fast-transition),
    background-color var(--blog-fast-transition),
    border-color var(--blog-fast-transition),
    transform var(--blog-fast-transition);
}

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

.blog-filter .chip.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.blog-filter .chip:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 0.2rem;
}

.blog-list-status {
  min-height: 1.5rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

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

.article-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 20rem;
  flex-direction: column;
  overflow: hidden;
  padding: 1.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  box-shadow: 0 0.75rem 1.75rem color-mix(in srgb, var(--color-bg) 54%, transparent);
  opacity: 1;
  transition:
    border-color var(--blog-fast-transition),
    background-color var(--blog-fast-transition),
    transform var(--blog-fast-transition),
    box-shadow var(--blog-fast-transition);
}

.article-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 0.2rem;
  content: "";
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--blog-fast-transition);
}

.article-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 62%, var(--color-border));
  background: var(--color-panel-raised);
  transform: translateY(-0.25rem);
  box-shadow: var(--blog-card-shadow);
}

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

.article-card-meta,
.related-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.article-card-meta .badge,
.related-card-meta .badge {
  padding: 0.35rem 0.58rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel-raised);
  color: var(--color-text);
}

.article-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.18rem, 2.5vw, 1.45rem);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--color-text);
  text-wrap: pretty;
}

.article-card p {
  margin: 1rem 0 1.4rem;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--color-text-muted);
}

.article-card-link,
.related-card-link {
  margin-top: auto;
  font-weight: 800;
  color: var(--color-accent);
  text-decoration: none;
}

.article-card-link:hover,
.related-card-link:hover {
  color: var(--color-text);
}

.blog-empty {
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text-muted);
}

.blog-list-promo,
.promo-block {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  overflow: hidden;
  margin-bottom: clamp(4rem, 8vw, 6rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  background:
    linear-gradient(
      120deg,
      var(--color-accent),
      color-mix(in srgb, var(--color-accent) 74%, var(--color-accent-strong))
    );
  color: var(--color-on-accent);
  box-shadow: var(--blog-card-shadow);
  isolation: isolate;
}

.blog-list-promo::after,
.promo-block::after {
  position: absolute;
  right: -2rem;
  bottom: -3rem;
  width: 11rem;
  aspect-ratio: 1;
  z-index: -1;
  content: "";
  border: 1.25rem double color-mix(in srgb, var(--color-on-accent) 28%, transparent);
  border-radius: var(--radius-pill);
}

.promo-brand {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.blog-list-promo h2,
.promo-block h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.15rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-on-accent);
  text-wrap: pretty;
}

.blog-list-promo p,
.promo-block p {
  max-width: 42rem;
  margin: 0.75rem 0 0;
  line-height: 1.75;
  color: color-mix(in srgb, var(--color-on-accent) 86%, var(--color-accent));
}

.promo-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.blog-list-promo .btn-primary,
.promo-block .btn-primary {
  border-color: var(--color-text);
  background: var(--color-text);
  color: var(--color-bg);
}

.blog-list-promo .btn-secondary,
.promo-block .btn-secondary {
  border-color: var(--color-on-accent);
  background: transparent;
  color: var(--color-on-accent);
}

.blog-list-promo .btn:hover,
.promo-block .btn:hover {
  transform: translateY(-0.12rem);
}

/* Article layout and split-meta hero */

.post-page,
.article-page {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  counter-reset: article-section;
}

.post-shell,
.article-shell,
.article-body,
.post-body,
article.prose,
#related-posts,
#post-nav,
.article-page > .promo-block {
  width: min(calc(100% - (var(--gutter) * 2)), var(--blog-reading-width));
  margin-inline: auto;
}

.post-hero {
  --post-hero-pad: clamp(1.5rem, 4vw, 2.5rem);
  position: relative;
  display: grid;
  width: min(calc(100% - (var(--gutter) * 2)), calc(var(--blog-reading-width) + (var(--post-hero-pad) * 2)));
  grid-template-columns: minmax(0, 3fr) minmax(11rem, 1fr);
  align-items: start;
  gap: 2rem;
  overflow: hidden;
  margin-top: 1.5rem;
  margin-bottom: 2.25rem;
  padding: var(--post-hero-pad);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  box-shadow: var(--blog-card-shadow);
  isolation: isolate;
}

.post-hero::before {
  position: absolute;
  inset: 1rem auto 1rem 0;
  width: 0.28rem;
  content: "";
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.post-hero::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: 0.28;
  background-image:
    linear-gradient(
      color-mix(in srgb, var(--color-border) 45%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--color-border) 45%, transparent) 1px,
      transparent 1px
    );
  background-size: 1.5rem 1.5rem;
  mask-image: linear-gradient(90deg, transparent 28%, var(--color-bg));
}

.post-hero-main {
  min-width: 0;
}

.post-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-wrap: pretty;
}

.post-hero-summary {
  max-width: 48rem;
  margin: 1.2rem 0 0;
  font-size: 1rem;
  line-height: var(--blog-line-height);
  color: var(--color-text-muted);
}

.post-meta-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0;
  padding: 0.25rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: color-mix(in srgb, var(--color-panel-raised) 88%, transparent);
}

.post-meta-item {
  display: grid;
  gap: 0.35rem;
  padding-block: 0.9rem;
  border-bottom: 1px solid var(--color-border);
}

.post-meta-item:last-child {
  border-bottom: 0;
}

.post-meta-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.post-meta-value {
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--color-text);
}

.post-meta-item:first-child .post-meta-value,
.post-meta-card .badge {
  color: var(--color-accent);
}

.article-body,
.post-body,
article.prose {
  overflow-wrap: break-word;
  font-size: 1rem;
  line-height: var(--blog-line-height);
  color: var(--color-text);
}

.article-body > :first-child,
.post-body > :first-child,
article.prose > :first-child {
  margin-top: 0;
}

.article-body p,
.post-body p,
article.prose p {
  margin-block: 0 1.35rem;
  color: color-mix(in srgb, var(--color-text) 91%, var(--color-text-muted));
}

.article-body h2,
.post-body h2,
article.prose h2 {
  counter-increment: article-section;
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 2.8rem 0 1rem;
  padding-top: 0.35rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-wrap: pretty;
}

.article-body h2::before,
.post-body h2::before,
article.prose h2::before {
  flex: 0 0 auto;
  content: counter(article-section, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent);
}

/* h2 是 flex 容器:行内子元素(如 .no-break span)会被拆成并排 flex 项,
   标题裂成多根窄柱且最后一柱冲出视口(2026-08-26 android-vpn-roundup 病例)。
   display:contents 让 span 的文字并回同一个匿名流,white-space 等继承样式照常生效 */
.article-body h2 > span,
.post-body h2 > span,
article.prose h2 > span {
  display: contents;
}

.article-body h2::after,
.post-body h2::after,
article.prose h2::after {
  position: absolute;
  top: 0;
  left: 0;
  width: 3.5rem;
  height: 0.12rem;
  content: "";
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.article-body h3,
.post-body h3,
article.prose h3 {
  margin: 2rem 0 0.8rem;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.3rem);
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.015em;
  color: var(--color-text);
  text-wrap: pretty;
}

.article-body a,
.post-body a,
article.prose a {
  color: var(--color-accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.article-body a.btn.btn-primary,
.post-body a.btn.btn-primary,
article.prose a.btn.btn-primary {
  color: var(--color-on-accent);
}

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

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

.article-body li,
.post-body li,
article.prose li {
  margin-block: 0.55rem;
  padding-left: 0.25rem;
}

.article-body li::marker,
.post-body li::marker,
article.prose li::marker {
  color: var(--color-accent);
}

.article-body blockquote,
.post-body blockquote,
article.prose blockquote {
  margin: 1.75rem 0;
  padding: 1.2rem 1.4rem;
  border-left: 0.25rem solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-panel);
  color: var(--color-text-muted);
}

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

.article-body pre,
.post-body pre,
article.prose pre {
  position: relative;
  max-width: 100%;
  overflow: auto;
  margin: 1.75rem 0;
  padding: 2.5rem 1.25rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-text) 4%, transparent);
  font: 0.86rem/1.75 var(--font-mono);
  color: var(--color-text);
}

.article-body pre::before,
.post-body pre::before,
article.prose pre::before {
  position: absolute;
  top: 0.75rem;
  left: 1rem;
  content: "TERMINAL";
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

.article-body code,
.post-body code,
article.prose code {
  border-radius: var(--radius-xs);
  background: var(--color-panel-raised);
  padding: 0.12em 0.32em;
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-accent);
}

.article-body pre code,
.post-body pre code,
article.prose pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.article-body table,
.post-body table,
article.prose table,
.data-table {
  width: 100%;
  margin: 1.75rem 0;
  border-collapse: collapse;
  border: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.article-body th,
.post-body th,
article.prose th,
.data-table th {
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-accent);
  text-align: left;
  color: var(--color-on-accent);
}

.article-body td,
.post-body td,
article.prose td,
.data-table td {
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.article-body tbody tr:nth-child(odd),
.post-body tbody tr:nth-child(odd),
article.prose tbody tr:nth-child(odd),
.data-table tbody tr:nth-child(odd) {
  background: var(--color-panel);
}

.article-body tbody tr:nth-child(even),
.post-body tbody tr:nth-child(even),
article.prose tbody tr:nth-child(even),
.data-table tbody tr:nth-child(even) {
  background: var(--color-panel-raised);
}

.article-body tbody tr:hover,
.post-body tbody tr:hover,
article.prose tbody tr:hover,
.data-table tbody tr:hover {
  background: color-mix(in srgb, var(--color-accent) 12%, var(--color-panel-raised));
}

.table-scroll {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  contain: inline-size;
}

.callout {
  position: relative;
  margin: 1.75rem 0;
  padding: 1.25rem 1.25rem 1.25rem 3.75rem;
  border: 1px solid var(--color-border);
  border-left: 0.3rem solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-panel));
}

.callout::before {
  position: absolute;
  top: 1.15rem;
  left: 1.15rem;
  display: grid;
  width: 1.65rem;
  aspect-ratio: 1;
  place-items: center;
  content: "i";
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  font: 900 0.78rem/1 var(--font-mono);
  color: var(--color-on-accent);
}

.callout.warning {
  border-left-color: var(--color-warn);
  background: color-mix(in srgb, var(--color-warn) 10%, var(--color-panel));
}

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

.callout.success {
  border-left-color: var(--color-success);
  background: color-mix(in srgb, var(--color-success) 10%, var(--color-panel));
}

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

.callout strong {
  display: block;
  margin-bottom: 0.35rem;
}

.callout p:last-child {
  margin-bottom: 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 0.75rem;
  margin: 1.75rem 0;
}

.stat-card {
  position: relative;
  overflow: hidden;
  padding: 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-accent) 7%, var(--color-panel));
}

.stat-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 0.2rem;
  content: "";
  background: var(--color-accent);
}

.stat-card:nth-child(even) {
  background: color-mix(in srgb, var(--color-success) 8%, var(--color-panel-raised));
}

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

.stat-card:nth-child(3n) {
  background: color-mix(in srgb, var(--color-warn) 8%, var(--color-panel));
}

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

.stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
}

.stat-label {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

.check-list {
  display: grid;
  gap: 0.65rem;
  margin: 1.75rem 0;
  padding: 0;
  list-style: none;
}

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

.verdict {
  margin: 1.75rem 0;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--color-border);
  border-left: 0.3rem solid var(--color-accent);
  border-radius: var(--radius-xs);
  background: var(--color-panel-raised);
  color: var(--color-text);
}

.verdict strong:first-child {
  display: inline-block;
  margin-right: 0.45rem;
  color: var(--color-accent);
}

#related-posts {
  padding-top: 2.5rem;
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.related-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 16rem;
  flex-direction: column;
  padding: 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  transition:
    border-color var(--blog-fast-transition),
    transform var(--blog-fast-transition),
    background-color var(--blog-fast-transition);
}

.related-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 0.18rem;
  content: "";
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--blog-fast-transition);
}

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

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

.related-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.related-card p {
  display: -webkit-box;
  overflow: hidden;
  margin: 0.8rem 0 1rem;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  padding-top: 1.5rem;
  padding-bottom: 1rem;
}

.post-nav-card {
  position: relative;
  display: grid;
  gap: 0.55rem;
  min-width: 0;
  padding: 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  transition:
    border-color var(--blog-fast-transition),
    transform var(--blog-fast-transition),
    background-color var(--blog-fast-transition);
}

.post-nav-card:last-child {
  text-align: right;
}

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

.post-nav-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.post-nav-card strong {
  font-size: 0.92rem;
  line-height: 1.55;
}

@media (max-width: 860px) {
  .article-body table,
  .post-body table,
  article.prose table,
  .prose > .data-table {
    display: table;
  }

  .article-body > .table-scroll,
  .post-body > .table-scroll,
  article.prose > .table-scroll {
    width: 100%;
    min-width: 0;
    overflow-x: auto;
  }

  .post-hero {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .post-meta-card {
    order: -1;
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0.35rem 0.8rem;
  }

  .post-meta-item {
    flex: 1 1 9rem;
    border-right: 1px solid var(--color-border);
    border-bottom: 0;
    padding: 0.65rem 0.8rem;
  }

  .post-meta-item:last-child {
    border-right: 0;
  }

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

  .related-card {
    min-height: 0;
  }
}

@media (max-width: 768px) {
  .blog-list-hero {
    padding-block: 2rem 3.5rem;
  }

  .blog-list-hero .wrap::after {
    display: none;
  }

  .blog-index-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  .blog-filter {
    justify-content: flex-start;
  }

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

  .article-card {
    min-height: 0;
  }

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

  .promo-actions {
    width: 100%;
  }

  .promo-actions .btn {
    flex: 1 1 auto;
  }

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

  .post-nav-card:last-child {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .blog-list-hero .wrap,
  .post-hero {
    padding-inline: 1.5rem;
  }

  .post-breadcrumb {
    overflow-x: hidden;
    padding-inline: calc(var(--gutter) + 1.5rem);
  }

  .article-body,
  .post-body,
  article.prose {
    padding-inline: 1.5rem;
  }

  .article-page .no-break {
    white-space: normal !important;
  }

  .post-meta-card {
    display: grid;
    grid-template-columns: 1fr;
  }

  .post-meta-item {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .post-meta-item:last-child {
    border-bottom: 0;
  }

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

@media (prefers-reduced-motion: reduce) {
  .article-card,
  .related-card,
  .post-nav-card,
  .blog-filter .chip,
  .blog-list-promo .btn,
  .promo-block .btn {
    scroll-behavior: auto;
    transition: none;
  }

  .article-card:hover,
  .related-card:hover,
  .post-nav-card:hover,
  .blog-filter .chip:hover,
  .blog-list-promo .btn:hover,
  .promo-block .btn:hover {
    transform: none;
  }
}