:root {
  --blog-reading: 56rem;
  --blog-column-pad: 1.5rem;
  --blog-wide: 75rem;
  --blog-body-size: 1rem;
  --blog-small: 0.875rem;
  --blog-micro: 0.75rem;
  --blog-list-title: clamp(2rem, 4.5vw, 3rem);
  --blog-article-title: clamp(1.75rem, 3.5vw, 2.6rem);
  --blog-h2: clamp(1.3rem, 2.5vw, 1.6rem);
  --blog-h3: clamp(1.125rem, 2vw, 1.3rem);
  --blog-stat-size: clamp(1.6rem, 3vw, 2.25rem);
  --blog-body-leading: 1.9;
  --blog-title-leading: 1.38;
  --blog-tracking: -0.02em;
  --blog-heading-weight: var(--weight-bold);
  --blog-radius: var(--r-card);
  --blog-focus: var(--accent-dark);
  --blog-chrome-bg: var(--bg-panel-2);
  --blog-code-bg: var(--text);
  --blog-code-text: var(--bg);
  --blog-tint: color-mix(in srgb, var(--accent) 10%, var(--bg-panel));
  --blog-success-tint: color-mix(in srgb, var(--success) 9%, var(--bg-panel));
  --blog-warning-tint: color-mix(in srgb, var(--warn) 11%, var(--bg-panel));
  --blog-ink-tint: color-mix(in srgb, var(--text) 5%, var(--bg-panel));
  --blog-promo-start: var(--accent-dark);
  --blog-promo-end: var(--accent-ink);
  --blog-promo-text: var(--bg-panel);
  --blog-shadow: 0 16px 48px var(--accent-a10);
  --blog-transition: 180ms;
  --blog-section-gap: 2.5rem;
}

.blog-index,
.blog-article {
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-body);
}

.blog-top {
  background: radial-gradient(ellipse at 85% 0%, var(--honey), var(--clear) 58%);
}

.blog-index *,
.blog-article * {
  box-sizing: border-box;
}

.blog-list-wrap {
  width: 100%;
  max-width: var(--blog-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-bottom: 3rem;
}

.blog-skip {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  background: var(--bg-panel);
  color: var(--text);
  transform: translateY(-180%);
}

.blog-skip:focus {
  transform: none;
}

.blog-index :focus-visible,
.blog-article :focus-visible,
#related-posts :focus-visible,
#post-nav :focus-visible {
  outline: 3px solid var(--blog-focus);
  outline-offset: 4px;
}

.blog-index h1,
.blog-index h2,
.blog-index h3,
.article-hero h1,
.prose h1,
.prose h2,
.prose h3,
.article-content h1,
.article-content h2,
.article-content h3,
.post-content h1,
.post-content h2,
.post-content h3,
[data-article-body] h1,
[data-article-body] h2,
[data-article-body] h3,
#related-posts h2,
#related-posts h3 {
  display: block;
  font-family: var(--font-display);
  font-weight: var(--blog-heading-weight);
  line-height: var(--blog-title-leading);
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  overflow-wrap: anywhere;
}

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

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.375rem 0.625rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.625rem;
  color: var(--text-muted);
}

.breadcrumbs a {
  color: var(--text-muted);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

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

.blog-list-hero,
.article-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-panel);
  background: var(--bg-panel);
  box-shadow: var(--blog-shadow);
}

.window-chrome {
  position: relative;
  display: block;
  min-height: 2.75rem;
  padding: 0.75rem 1.25rem 0.75rem 5rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(90deg, var(--frame), var(--blog-chrome-bg));
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--blog-micro);
  line-height: 1.5;
  text-align: right;
  overflow-wrap: anywhere;
}

.window-chrome::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 1.25rem;
  width: 2.5rem;
  height: 0.5rem;
  margin-top: -0.25rem;
  border-radius: var(--r-xs);
  background: linear-gradient(
    90deg,
    var(--error) 0% 20%,
    var(--clear) 20% 40%,
    var(--warn) 40% 60%,
    var(--clear) 60% 80%,
    var(--success) 80% 100%
  );
}

.blog-hero-copy {
  padding: clamp(1.75rem, 4vw, 3.25rem) var(--blog-column-pad);
}

.blog-list-hero h1 {
  margin: 1rem 0;
  font-size: var(--blog-list-title);
}

.blog-hero-copy > p {
  max-width: 44rem;
  margin: 0;
  color: var(--text-muted);
  font-size: var(--blog-body-size);
  line-height: var(--blog-body-leading);
}

.blog-hero-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1.5rem;
}

.blog-library {
  padding-top: 2.5rem;
}

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

.blog-library-heading h2 {
  margin: 0;
  font-size: var(--blog-h2);
}

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

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin: 1.25rem 0 1.75rem;
}

.blog-filters button {
  min-height: 2.75rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-small);
  font-weight: var(--weight-medium);
  line-height: 1.5;
  cursor: pointer;
  transition: border-color var(--blog-transition) var(--ease), background var(--blog-transition) var(--ease);
}

.blog-filters button:hover {
  border-color: var(--accent-dark);
  color: var(--accent-dark);
}

.blog-filters button.is-active,
.blog-filters button[aria-pressed="true"] {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: var(--bg-panel);
}

.blog-post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
  gap: 1.5rem;
}

.blog-post-grid > *,
.related-grid > *,
.stat-grid > * {
  min-width: 0;
}

.article-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--blog-radius);
  background: var(--bg-panel);
  color: var(--text);
  transition: transform var(--blog-transition) var(--ease), border-color var(--blog-transition) var(--ease), box-shadow var(--blog-transition) var(--ease);
}

.article-card:hover,
.article-card:focus-within {
  border-color: var(--accent-dark);
  box-shadow: var(--blog-shadow);
  transform: translateY(-2px);
}

.article-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.5rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem 0.75rem;
  color: var(--text-muted);
  font-size: var(--blog-small);
  line-height: 1.6;
}

.article-meta .tag,
.article-meta .chip,
.article-meta time,
.article-meta .read-time,
.article-meta .reading-time {
  max-width: 100%;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  font-size: var(--blog-micro);
  line-height: 1.6;
  white-space: normal;
  overflow-wrap: anywhere;
}

.article-meta .tag {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: var(--bg-panel);
}

.article-card h3 {
  margin: 1.125rem 0 0.875rem;
  font-size: var(--blog-h3);
}

.article-card h3 a,
.related-card h3 a {
  color: var(--text);
  text-decoration: none;
}

.article-card h3 a:hover,
.related-card h3 a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.article-summary {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  font-size: var(--blog-body-size);
  line-height: 1.85;
}

.article-read-link {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin-top: auto;
  padding-block: 0.375rem;
  color: var(--accent-dark);
  font-size: var(--blog-small);
  font-weight: var(--weight-bold);
  text-underline-offset: 0.25em;
}

.blog-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--blog-radius);
  background: var(--bg-panel);
  color: var(--text-muted);
  line-height: var(--blog-body-leading);
}

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

.blog-empty a {
  display: inline-block;
  margin: 0.5rem 1rem 0 0;
  color: var(--accent-dark);
}

.blog-list-promo {
  margin-top: 3rem;
}

/* 阅读列显式覆盖基础样式；带边框 Hero 与正文使用同一内衬。 */
.reading-wrap,
.article-hero,
.article-breadcrumbs,
.blog-article > .breadcrumbs,
.blog-article main > .breadcrumbs {
  box-sizing: border-box;
  width: calc(100% - 2 * var(--gutter));
  max-width: calc(var(--blog-reading) + 2 * var(--blog-column-pad));
  margin-inline: auto;
  padding-inline: var(--blog-column-pad);
}

.reading-wrap .reading-wrap,
.reading-wrap .article-hero,
.reading-wrap .breadcrumbs,
.reading-wrap .promo-block {
  width: 100%;
  max-width: none;
  margin-inline: 0;
}

.reading-wrap .reading-wrap {
  padding-inline: 0;
}

.reading-wrap > .prose {
  max-width: none;
}

.reading-wrap .breadcrumbs {
  padding-inline: 0;
}

.article-hero {
  padding-block: 0 1.75rem;
}

.article-hero > .window-chrome {
  margin-inline: calc(-1 * var(--blog-column-pad));
  margin-bottom: 1.75rem;
}

.article-hero:not(:has(> .window-chrome)) {
  padding-top: 4.75rem;
}

.article-hero:not(:has(> .window-chrome))::before {
  content: "article.md";
  position: absolute;
  inset: 0 0 auto;
  min-height: 2.75rem;
  padding: 0.75rem var(--blog-column-pad);
  border-bottom: 1px solid var(--border);
  background:
    linear-gradient(var(--error), var(--error)) 1.5rem 50% / 0.5rem 0.5rem no-repeat,
    linear-gradient(var(--warn), var(--warn)) 2.5rem 50% / 0.5rem 0.5rem no-repeat,
    linear-gradient(var(--success), var(--success)) 3.5rem 50% / 0.5rem 0.5rem no-repeat,
    linear-gradient(90deg, var(--frame), var(--blog-chrome-bg));
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--blog-micro);
  line-height: 1.5;
  text-align: right;
}

.article-hero h1 {
  margin: 1rem 0;
  font-size: var(--blog-article-title);
}

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

.article-hero + .reading-wrap {
  margin-top: 1.75rem;
}

:where(.prose, .article-content, .post-content, [data-article-body]) {
  margin-inline: auto;
  min-width: 0;
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-body-leading);
  overflow-wrap: anywhere;
  counter-reset: blog-section;
}

:where(.prose, .article-content, .post-content, [data-article-body]) > :first-child {
  margin-top: 0;
}

:where(.prose, .article-content, .post-content, [data-article-body]) p {
  margin-block: 1rem;
}

:where(.prose, .article-content, .post-content, [data-article-body]) h2 {
  position: relative;
  margin: 2.25rem 0 1rem;
  color: var(--text);
  font-size: var(--blog-h2);
  scroll-margin-top: calc(var(--header-height) + var(--anchor-gap));
}

:where(.prose, .article-content, .post-content, [data-article-body]) h2::before {
  counter-increment: blog-section;
  content: counter(blog-section, decimal-leading-zero);
  display: inline-block;
  margin-right: 0.65rem;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  background: var(--blog-tint);
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
  font-weight: var(--weight-medium);
  line-height: 1.4;
  vertical-align: 0.15em;
}

:where(.prose, .article-content, .post-content, [data-article-body]) h3 {
  margin: 1.75rem 0 0.75rem;
  color: var(--text);
  font-size: var(--blog-h3);
}

:where(.prose, .article-content, .post-content, [data-article-body]) a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

:where(.prose, .article-content, .post-content, [data-article-body]) ul,
:where(.prose, .article-content, .post-content, [data-article-body]) ol {
  margin-block: 1rem;
  padding-inline-start: 1.5rem;
}

:where(.prose, .article-content, .post-content, [data-article-body]) li {
  margin-block: 0.5rem;
}

:where(.prose, .article-content, .post-content, [data-article-body]) strong {
  color: var(--text);
  font-weight: var(--weight-bold);
}

:where(.prose, .article-content, .post-content, [data-article-body]) hr {
  margin-block: 2rem;
  border: 0;
  border-top: 1px solid var(--border);
}

:where(.prose, .article-content, .post-content, [data-article-body]) img,
:where(.prose, .article-content, .post-content, [data-article-body]) svg {
  max-width: 100%;
  height: auto;
}

:where(.prose, .article-content, .post-content, [data-article-body]) code {
  padding: 0.15em 0.4em;
  border-radius: var(--r-xs);
  background: var(--blog-ink-tint);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
  white-space: break-spaces;
  overflow-wrap: anywhere;
}

:where(.prose, .article-content, .post-content, [data-article-body]) pre {
  position: relative;
  max-width: 100%;
  margin-block: 1.5rem;
  padding: 3.25rem 1.25rem 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-inner);
  background: var(--blog-code-bg);
  color: var(--blog-code-text);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
  line-height: 1.8;
  tab-size: 2;
}

:where(.prose, .article-content, .post-content, [data-article-body]) pre::before {
  content: "terminal";
  position: absolute;
  top: 0.75rem;
  left: 1.25rem;
  right: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--text-muted);
  color: var(--blog-code-text);
  font-family: var(--font-mono);
  font-size: var(--blog-micro);
  letter-spacing: 0.04em;
}

:where(.prose, .article-content, .post-content, [data-article-body]) pre code {
  padding: 0;
  border: 0;
  background: var(--clear);
  color: inherit;
  white-space: pre;
  overflow-wrap: normal;
}

:where(.prose, .article-content, .post-content, [data-article-body]) .table-scroll {
  width: 100%;
  max-width: 100%;
  margin-block: 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-inner);
  overscroll-behavior-x: contain;
}

:where(.prose, .article-content, .post-content, [data-article-body]) table {
  width: 100%;
  max-width: 100%;
  margin-block: 1.5rem;
  border-spacing: 0;
  border-collapse: collapse;
  font-size: var(--blog-small);
  line-height: 1.8;
}

:where(.prose, .article-content, .post-content, [data-article-body]) .table-scroll table {
  min-width: 38rem;
  margin: 0;
}

:where(.prose, .article-content, .post-content, [data-article-body]) th,
:where(.prose, .article-content, .post-content, [data-article-body]) td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

:where(.prose, .article-content, .post-content, [data-article-body]) thead th {
  background: var(--accent-dark);
  color: var(--bg-panel);
  font-weight: var(--weight-bold);
}

:where(.prose, .article-content, .post-content, [data-article-body]) tbody tr:nth-child(even) {
  background: var(--bg-panel-2);
}

:where(.prose, .article-content, .post-content, [data-article-body]) tbody tr:hover {
  background: var(--blog-tint);
}

:where(.prose, .article-content, .post-content, [data-article-body]) caption {
  padding: 0.75rem;
  color: var(--text-muted);
  text-align: left;
}

.callout,
:where(.prose, .article-content, .post-content, [data-article-body]) blockquote {
  position: relative;
  margin: 1.5rem 0;
  padding: 1.25rem 1.25rem 1.25rem 3.5rem;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-dark);
  border-radius: var(--r-inner);
  background: var(--blog-tint);
  color: var(--text);
  font-size: var(--blog-body-size);
  line-height: var(--blog-body-leading);
}

.callout::before,
:where(.prose, .article-content, .post-content, [data-article-body]) blockquote::before {
  content: "i";
  position: absolute;
  top: 1.3rem;
  left: 1rem;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-round);
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
  font-weight: var(--weight-bold);
  line-height: 1.4rem;
  text-align: center;
}

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

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

.callout.success,
.callout.is-success,
.callout-success {
  border-left-color: var(--success);
  background: var(--blog-success-tint);
}

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

.callout > :first-child,
:where(.prose, .article-content, .post-content, [data-article-body]) blockquote > :first-child {
  margin-top: 0;
}

.callout > :last-child,
:where(.prose, .article-content, .post-content, [data-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-block: 1.5rem;
}

.stat-card {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent-dark);
  border-radius: var(--r-inner);
  background: var(--blog-tint);
}

.stat-card:nth-child(even) {
  border-top-color: var(--success);
  background: var(--blog-success-tint);
}

.stat-num {
  display: block;
  color: var(--accent-dark);
  font-family: var(--font-display);
  font-size: var(--blog-stat-size);
  font-weight: var(--weight-bold);
  line-height: 1.35;
  font-variant-numeric: tabular-nums;
}

.stat-card:nth-child(even) .stat-num {
  color: var(--text);
}

.stat-label {
  display: block;
  margin-top: 0.5rem;
  color: var(--text-muted);
  font-size: var(--blog-small);
  line-height: 1.8;
}

:where(.prose, .article-content, .post-content, [data-article-body]) .check-list,
.check-list {
  margin-block: 1.5rem;
  padding: 0;
  list-style: none;
}

.check-list li {
  margin-block: 0.625rem;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-inner);
  background: var(--bg-panel);
  color: var(--text);
  list-style: none;
}

.verdict {
  margin-block: 1.5rem;
  padding: 1.125rem 1.25rem;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-dark);
  border-radius: var(--r-inner);
  background: var(--blog-tint);
  color: var(--text);
  line-height: var(--blog-body-leading);
}

.verdict > :first-child {
  margin-top: 0;
}

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

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

.promo-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-block: 2rem;
  padding: 1.75rem var(--blog-column-pad);
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-panel);
  background: linear-gradient(120deg, var(--blog-promo-start), var(--blog-promo-end));
  color: var(--blog-promo-text);
}

.promo-block > * {
  min-width: 0;
}

.promo-block h2,
.promo-block h3 {
  margin: 0 0 0.5rem;
  color: var(--blog-promo-text);
  font-family: var(--font-display);
  font-size: var(--blog-h3);
  font-weight: var(--weight-bold);
  line-height: var(--blog-title-leading);
}

.promo-block p {
  margin: 0;
  color: var(--blog-promo-text);
  font-size: var(--blog-body-size);
  line-height: 1.8;
}

.promo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.promo-block .btn-go {
  border: 1px solid var(--bg-panel);
  background: var(--bg-panel);
  color: var(--accent-dark);
  box-shadow: none;
}

.promo-block .btn-line {
  border: 1px solid var(--bg-panel);
  background: var(--clear);
  color: var(--bg-panel);
}

.promo-block .btn-go:hover {
  background: var(--bg-panel-2);
  color: var(--accent-ink);
}

.promo-block .btn-line:hover {
  background: var(--bg-panel);
  color: var(--accent-dark);
}

#related-posts {
  margin-top: 0;
  padding-block: 1.5rem 1rem;
}

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

#related-posts > h2 {
  margin: 0 0 1.25rem;
  color: var(--text);
  font-size: var(--blog-h2);
}

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

.related-card,
.post-nav-card {
  position: relative;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: var(--r-inner);
  background: var(--bg-panel);
  color: var(--text);
  transition: transform var(--blog-transition) var(--ease), border-color var(--blog-transition) var(--ease), box-shadow var(--blog-transition) var(--ease);
}

.related-card:hover,
.related-card:focus-within,
.post-nav-card:hover,
.post-nav-card:focus-visible {
  border-top-color: var(--accent-dark);
  box-shadow: var(--blog-shadow);
  transform: translateY(-2px);
}

.related-card h3 {
  margin: 1rem 0 0.75rem;
  font-size: var(--blog-body-size);
}

.related-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--blog-small);
  line-height: 1.85;
}

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

.post-nav-card {
  display: block;
  min-width: 0;
  text-decoration: none;
}

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

.post-nav-label,
.post-nav-title,
.post-nav-date {
  display: block;
}

.post-nav-label {
  margin-bottom: 0.75rem;
  color: var(--accent-dark);
  font-size: var(--blog-small);
  font-weight: var(--weight-bold);
  line-height: 1.6;
}

.post-nav-title {
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-body-size);
  font-weight: var(--weight-bold);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.post-nav-date {
  margin-top: 0.75rem;
  color: var(--text-muted);
  font-size: var(--blog-micro);
  line-height: 1.6;
}

/* 仅提供文章落地页可复用的样式；列表页不挂载此组件。 */
.float-cta {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 30;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  max-width: calc(100vw - 2rem);
  min-height: 3rem;
  padding: 0.875rem 1.25rem;
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-pill);
  background: var(--accent-dark);
  color: var(--bg-panel);
  box-shadow: var(--blog-shadow);
  font-family: var(--font-body);
  font-size: var(--blog-small);
  font-weight: var(--weight-bold);
  line-height: 1.5;
  text-decoration: none;
}

.float-cta svg {
  width: 1.125rem;
  height: 1.125rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
}

.float-cta:hover {
  background: var(--accent-ink);
  color: var(--bg-panel);
}

@media (max-width: 860px) {
  :where(.prose, .article-content, .post-content, [data-article-body]) table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-x: contain;
  }

  :where(.prose, .article-content, .post-content, [data-article-body]) .table-scroll table {
    display: table;
    width: 100%;
    max-width: none;
    overflow: visible;
  }

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

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

  .blog-post-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .blog-list-wrap {
    padding-inline: var(--gutter);
  }

  .blog-library-heading {
    display: block;
  }

  .blog-result-status {
    margin-top: 0.5rem;
  }

  .blog-filters {
    gap: 0.5rem;
  }

  .blog-filters button {
    padding-inline: 0.875rem;
  }

  .article-body {
    padding: 1.25rem;
  }

  .article-hero h1 {
    font-size: min(var(--blog-article-title), 2.5rem);
  }

  .breadcrumbs {
    margin-top: 1.25rem;
  }

  .promo-block {
    align-items: stretch;
  }

  .promo-actions {
    width: 100%;
  }

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

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

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

  .blog-article:has(.float-cta) {
    padding-bottom: calc(5.5rem + env(safe-area-inset-bottom));
  }

  .float-cta {
    right: max(0.75rem, env(safe-area-inset-right));
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    max-width: calc(100vw - 1.5rem);
    padding: 0.75rem 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .article-card,
  .related-card,
  .post-nav-card,
  .blog-filters button,
  .float-cta,
  .promo-block .btn {
    transition: none;
    animation: none;
  }

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