:root {
  --blog-column: 56rem;
  --blog-gutter: 1.5rem;
  --blog-body-size: 1rem;
  --blog-small-size: 0.875rem;
  --blog-h1: clamp(1.875rem, 4vw, 2.6rem);
  --blog-list-h1: clamp(2rem, 4.5vw, 3rem);
  --blog-h2: clamp(1.3rem, 2.5vw, 1.6rem);
  --blog-h3: clamp(1.125rem, 2vw, 1.3rem);
  --blog-card-title: 1.2rem;
  --blog-body-leading: 1.9;
  --blog-heading-leading: 1.4;
  --blog-tracking: -0.015em;
  --blog-radius: var(--r-md, 12px);
  --blog-small-radius: var(--r-sm, 8px);
  --blog-pill-radius: var(--r-pill, 999px);
  --blog-gap: 1.5rem;
  --blog-section-gap: 2.5rem;
  --blog-rule: 1px;
  --blog-strong-rule: 3px;
  --blog-motion: 160ms ease;
  --blog-grid-size: 32px;
  --blog-grid-ink: color-mix(in srgb, var(--text) 4%, transparent);
  --blog-tint: color-mix(in srgb, var(--bg-panel-2) 65%, var(--bg));
  --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-link-tint: color-mix(in srgb, var(--accent-dark) 7%, var(--bg-panel));
  --blog-code-bg: var(--ink-deep);
  --blog-code-fg: var(--win-text);
  --blog-shadow: 0 12px 36px color-mix(in srgb, var(--accent) 10%, transparent);
  --blog-focus: 0 0 0 3px color-mix(in srgb, var(--accent-dark) 35%, transparent);
}

.reading-wrap {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-column) + var(--blog-gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--blog-gutter);
  min-width: 0;
}

.blog-band {
  box-sizing: border-box;
  width: 100%;
  margin-inline: 0;
  padding: var(--blog-section-gap) var(--blog-gutter);
  border-block: var(--blog-rule) solid var(--border);
  border-radius: 0;
  box-shadow: none;
  background-color: var(--blog-tint);
  background-image:
    linear-gradient(var(--blog-grid-ink) var(--blog-rule), transparent var(--blog-rule)),
    linear-gradient(90deg, var(--blog-grid-ink) var(--blog-rule), transparent var(--blog-rule));
  background-size: var(--blog-grid-size) var(--blog-grid-size);
}

.blog-band > .reading-wrap {
  max-width: var(--blog-column);
  width: 100%;
  margin-inline: auto;
  padding-inline: 0;
}

.article-hero {
  box-sizing: border-box;
  padding: var(--blog-section-gap) var(--blog-gutter);
  border-radius: 0;
  box-shadow: none;
}

.blog-band .article-hero {
  padding-block: 0;
}

.blog-band > .article-hero.reading-wrap {
  max-width: calc(var(--blog-column) + var(--blog-gutter) * 2);
  padding-inline: var(--blog-gutter);
}

/* An article-hero may itself be the full-width band or its reading column. */
.article-hero.blog-band {
  max-width: none;
  width: 100%;
}

.blog-band:has(> .article-hero.reading-wrap) {
  padding-inline: 0;
}

.blog-band h1,
.article-hero h1,
.prose h1 {
  display: block;
  font-family: var(--font-display);
  font-size: var(--blog-h1);
  font-weight: 900;
  line-height: var(--blog-heading-leading);
  letter-spacing: var(--blog-tracking);
  color: var(--text);
  text-wrap: pretty;
  overflow-wrap: anywhere;
  margin-block: 0.75rem 1rem;
}

.blog-list-hero h1 {
  font-size: var(--blog-list-h1);
}

.blog-eyebrow,
.article-meta,
.post-nav-label,
.blog-status {
  font-size: var(--blog-small-size);
  color: var(--text-muted);
}

.blog-eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.blog-lead,
.article-hero .article-summary,
.blog-band .article-summary {
  max-width: 100%;
  margin-block: 0 0.25rem;
  font-size: var(--blog-body-size);
  line-height: var(--blog-body-leading);
  color: var(--text-muted);
}

.breadcrumbs {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
  padding-top: 0.25rem;
  font-size: var(--blog-small-size);
  line-height: 1.8;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumbs li {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--text-muted);
}

.breadcrumbs li + li::before {
  content: "›";
  margin-inline-end: 0.75rem;
  color: var(--text-muted);
}

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

.blog-list-section {
  padding-block: 2rem;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.blog-filters button {
  appearance: none;
  padding: 0.625rem 1rem;
  border: var(--blog-rule) solid var(--border);
  border-radius: var(--blog-pill-radius);
  background: var(--bg-panel);
  color: var(--text);
  font: inherit;
  font-size: var(--blog-small-size);
  line-height: 1.5;
  cursor: pointer;
  transition: border-color var(--blog-motion), background-color var(--blog-motion);
}

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

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

.blog-status {
  margin-block: 1rem;
  line-height: 1.6;
}

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

.article-card {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--blog-gap);
  border: var(--blog-rule) solid var(--border);
  border-top: var(--blog-strong-rule) solid var(--border);
  border-radius: var(--blog-radius);
  background: var(--bg-panel);
  box-shadow: inset 0 var(--blog-rule) 0 var(--hi-white), var(--blog-shadow);
  color: var(--text);
  transition: border-color var(--blog-motion), transform var(--blog-motion);
}

.article-card:hover,
.article-card:focus-within {
  border-top-color: var(--accent-dark);
  transform: translateY(-3px);
}

.article-card h2,
.article-card h3 {
  display: block;
  margin-block: 0.875rem 0.75rem;
  font-family: var(--font-display);
  font-size: var(--blog-card-title);
  font-weight: 800;
  line-height: 1.65;
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  overflow-wrap: anywhere;
}

.article-card h2 a,
.article-card h3 a {
  color: var(--text);
  text-decoration: none;
}

.article-card h2 a:hover,
.article-card h3 a:hover {
  color: var(--accent-dark);
}

.article-card > p {
  margin-block: 0 1.25rem;
  color: var(--text-muted);
  font-size: var(--blog-body-size);
  line-height: 1.85;
}

.article-card > .text-link {
  margin-top: auto;
  font-size: var(--blog-small-size);
  font-weight: 700;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: baseline;
  gap: 0.25rem 0.5rem;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  line-height: 1.7;
}

.blog-band .article-meta > *,
.article-hero .article-meta > * {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
  color: var(--text-muted);
}

.blog-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  border: var(--blog-rule) dashed var(--border);
  border-radius: var(--blog-radius);
  background: var(--bg-panel);
  color: var(--text-muted);
  line-height: 1.8;
}

.prose {
  padding-block: 2rem;
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-body-leading);
  color: var(--text);
  overflow-wrap: anywhere;
}

.prose h2,
#related-posts > h2 {
  display: block;
  position: relative;
  margin-block: 2.25rem 1rem;
  padding-top: 0.75rem;
  font-family: var(--font-display);
  font-size: var(--blog-h2);
  line-height: 1.55;
  font-weight: 800;
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  color: var(--text);
}

.prose h2::before,
#related-posts > h2::before {
  content: "";
  display: block;
  width: 2.5rem;
  height: var(--blog-strong-rule);
  margin-bottom: 0.75rem;
  border-radius: var(--blog-pill-radius);
  background: var(--accent-dark);
}

.prose h3 {
  display: block;
  margin-block: 1.75rem 0.75rem;
  font-family: var(--font-display);
  font-size: var(--blog-h3);
  line-height: 1.6;
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  color: var(--text);
}

.prose > h2:first-child,
.prose > section:first-child > h2:first-child {
  margin-top: 0;
}

.prose p,
.prose ul,
.prose ol {
  margin-block: 0 1.25rem;
}

.prose ul,
.prose ol {
  padding-inline-start: 1.5rem;
}

.prose li + li {
  margin-top: 0.5rem;
}

.prose section {
  scroll-margin-top: var(--anchor-offset, 7rem);
}

.prose img,
.prose svg,
.prose video {
  max-width: 100%;
}

.prose img,
.prose video {
  height: auto;
  border-radius: var(--blog-small-radius);
}

.prose figure {
  margin: 1.75rem 0;
}

.prose figcaption {
  margin-top: 0.5rem;
  font-size: var(--blog-small-size);
  color: var(--text-muted);
}

.prose blockquote {
  margin: 1.75rem 0;
  padding: 1.25rem 1.5rem;
  border-inline-start: var(--blog-strong-rule) solid var(--accent-dark);
  border-radius: 0 var(--blog-small-radius) var(--blog-small-radius) 0;
  background: var(--blog-link-tint);
  color: var(--text);
}

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

.prose hr {
  margin-block: 2rem;
  border: 0;
  border-top: var(--blog-rule) solid var(--border);
}

.prose .table-scroll {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  margin-block: 1.5rem;
  border: var(--blog-rule) solid var(--border);
  border-radius: var(--blog-small-radius);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-block: 1.5rem;
  font-size: var(--blog-small-size);
  line-height: 1.8;
}

.prose .table-scroll table {
  margin: 0;
}

.prose caption {
  padding: 0.875rem 1rem;
  text-align: start;
  font-weight: 700;
  color: var(--text);
  background: var(--bg-panel-2);
}

.prose th,
.prose td {
  padding: 0.875rem 1rem;
  border-bottom: var(--blog-rule) solid var(--border);
  text-align: start;
  vertical-align: top;
}

.prose thead th {
  background: var(--text);
  color: var(--bg-panel);
  font-weight: 700;
}

.prose tbody th {
  color: var(--text);
  font-weight: 700;
}

.prose tbody tr {
  background: var(--bg-panel);
}

.prose tbody tr:nth-child(even) {
  background: var(--bg-panel-2);
}

.prose tbody tr:hover {
  background: var(--blog-link-tint);
}

.prose code {
  padding: 0.125rem 0.375rem;
  border-radius: var(--blog-small-radius);
  background: var(--bg-panel-2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.prose pre {
  position: relative;
  max-width: 100%;
  box-sizing: border-box;
  margin-block: 1.75rem;
  padding: 2.75rem 1.25rem 1.25rem;
  overflow-x: auto;
  border: var(--blog-rule) solid var(--win-line);
  border-radius: var(--blog-radius);
  background: var(--blog-code-bg);
  color: var(--blog-code-fg);
  line-height: 1.8;
}

.prose pre::before {
  content: "终端 / 配置示例";
  position: absolute;
  inset-block-start: 0.625rem;
  inset-inline-start: 1.25rem;
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  color: var(--win-muted);
}

.prose pre code {
  display: block;
  width: max-content;
  min-width: 100%;
  padding: 0;
  border-radius: 0;
  background: none;
  color: inherit;
  white-space: pre;
  overflow-wrap: normal;
}

.callout,
.prose .callout,
.verdict {
  position: relative;
  box-sizing: border-box;
  margin-block: 1.5rem;
  padding: 1.25rem 1.5rem;
  border: var(--blog-rule) solid var(--border);
  border-inline-start: var(--blog-strong-rule) solid var(--accent-dark);
  border-radius: var(--blog-small-radius);
  background: var(--blog-link-tint);
  color: var(--text);
  line-height: var(--blog-body-leading);
}

.callout,
.prose .callout {
  padding-inline-start: 3.5rem;
}

.callout::before {
  content: "i";
  position: absolute;
  inset-block-start: 1.375rem;
  inset-inline-start: 1.125rem;
  width: 1.375rem;
  height: 1.375rem;
  border: var(--blog-rule) solid currentColor;
  border-radius: var(--blog-pill-radius);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  font-weight: 700;
  line-height: 1.375rem;
  text-align: center;
  color: var(--accent-dark);
}

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

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

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

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

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

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

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 1rem;
  margin-block: 1.75rem;
}

.stat-card {
  min-width: 0;
  padding: 1.25rem;
  border: var(--blog-rule) solid var(--border);
  border-top: var(--blog-strong-rule) solid var(--accent-dark);
  border-radius: var(--blog-radius);
  background: var(--blog-link-tint);
  box-shadow: inset 0 var(--blog-rule) 0 var(--hi-white);
}

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

.stat-num {
  display: block;
  margin-bottom: 0.375rem;
  font-family: var(--font-mono);
  font-size: var(--blog-h2);
  font-weight: 800;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

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

.prose .check-list,
.check-list {
  list-style: none;
  margin-block: 1.5rem;
  padding: 0;
}

.check-list li {
  padding: 0.875rem 1rem;
  border: var(--blog-rule) solid var(--border);
  border-radius: var(--blog-small-radius);
  background: var(--bg-panel);
}

.prose .check-list li + li {
  margin-top: 0.625rem;
}

.promo-block {
  position: relative;
  box-sizing: border-box;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-block: 2rem;
  padding: 2rem;
  border: var(--blog-rule) solid var(--border);
  border-radius: var(--blog-radius);
  background:
    linear-gradient(var(--blog-grid-ink) var(--blog-rule), transparent var(--blog-rule)),
    linear-gradient(90deg, var(--blog-grid-ink) var(--blog-rule), transparent var(--blog-rule)),
    linear-gradient(120deg, var(--bg-panel), var(--bg-panel-2));
  background-size: var(--blog-grid-size) var(--blog-grid-size), var(--blog-grid-size) var(--blog-grid-size), auto;
  box-shadow: inset 0 var(--blog-rule) 0 var(--hi-white), var(--blog-shadow);
  color: var(--text);
}

.promo-copy {
  flex: 1 1 18rem;
  min-width: 0;
}

.promo-copy > strong {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  font-size: var(--blog-h2);
  font-weight: 900;
}

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

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

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

.promo-block .btn-ghost {
  background: var(--bg-panel);
  border-color: var(--border);
  color: var(--text);
}

.blog-list-promo {
  padding-bottom: 2rem;
}

.blog-list-promo .promo-block {
  margin-top: 0;
}

#related-posts,
#post-nav {
  box-sizing: border-box;
  min-width: 0;
  width: 100%;
  max-width: calc(var(--blog-column) + var(--blog-gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--blog-gutter);
}

.reading-wrap #related-posts,
.reading-wrap #post-nav {
  max-width: none;
  padding-inline: 0;
}

#related-posts {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

#related-posts > h2 {
  margin-top: 0;
}

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

.related-card {
  padding: 1.25rem;
}

.related-card h3 {
  font-size: var(--blog-body-size);
}

.related-card > p {
  font-size: var(--blog-small-size);
}

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

.post-nav-card {
  display: block;
  min-width: 0;
  padding: 1.25rem;
  border: var(--blog-rule) solid var(--border);
  border-top: var(--blog-strong-rule) solid var(--border);
  border-radius: var(--blog-radius);
  background: var(--bg-panel);
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--blog-motion), transform var(--blog-motion);
}

.post-nav-card:hover,
.post-nav-card:focus-visible {
  border-top-color: var(--accent-dark);
  transform: translateY(-3px);
}

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

.post-nav-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent-dark);
}

.post-nav-card strong {
  display: block;
  margin-bottom: 0.75rem;
  font-size: var(--blog-body-size);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.float-cta {
  position: fixed;
  z-index: 40;
  inset-inline-end: 1.5rem;
  inset-block-end: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  max-width: calc(100% - 3rem);
  box-sizing: border-box;
  padding: 0.875rem 1.25rem;
  border: var(--blog-rule) solid var(--accent);
  border-radius: var(--blog-pill-radius);
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  font-weight: 700;
  line-height: 1.5;
  text-decoration: none;
  box-shadow: var(--blog-shadow);
}

.float-cta svg {
  flex: 0 0 auto;
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
}

.blog-skip-link {
  position: absolute;
  z-index: 100;
  inset-block-start: 0.5rem;
  inset-inline-start: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--blog-small-radius);
  background: var(--text);
  color: var(--bg-panel);
  transform: translateY(calc(-100% - 0.5rem));
}

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

.blog-filters button:focus-visible,
.article-card a:focus-visible,
.post-nav-card:focus-visible,
.prose a:focus-visible,
.float-cta:focus-visible,
.breadcrumbs a:focus-visible {
  outline: var(--blog-rule) solid var(--accent-dark);
  outline-offset: 3px;
  box-shadow: var(--blog-focus);
}

#related-posts[hidden],
#post-nav[hidden] {
  display: none;
}

@media (max-width: 860px) {
  .prose table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
  }

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

  .related-card h3 {
    font-size: var(--blog-card-title);
  }
}

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

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

  .post-next {
    grid-column: auto;
  }

  .blog-band,
  .article-hero {
    padding-block: 1.75rem;
  }

  .prose {
    padding-block: 1.5rem;
  }

  .article-card,
  .promo-block {
    padding: 1.25rem;
  }

  .promo-block .cta-row {
    width: 100%;
  }

  .float-cta {
    inset-inline-end: 1rem;
    inset-block-end: max(1rem, env(safe-area-inset-bottom));
    max-width: calc(100% - 2rem);
    padding: 0.75rem 1rem;
    font-size: var(--blog-small-size);
  }

  body:has(.float-cta) {
    padding-bottom: 6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .article-card,
  .post-nav-card,
  .blog-filters button {
    transition: none;
  }

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