:root {
  --blog-reading: 50rem;
  --blog-title-size: clamp(1.75rem, 4vw, 2.6rem);
  --blog-list-title-size: clamp(2rem, 5vw, 3rem);
  --blog-h2-size: clamp(1.25rem, 2.6vw, 1.6rem);
  --blog-h3-size: 1.3rem;
  --blog-body-size: 1rem;
  --blog-small-size: 0.875rem;
  --blog-meta-size: 0.8125rem;
  --blog-tracking: -0.015em;
  --blog-tint: color-mix(in srgb, var(--c-accent) 8%, var(--c-panel));
  --blog-success-tint: color-mix(in srgb, var(--c-success) 9%, var(--c-panel));
  --blog-warn-tint: color-mix(in srgb, var(--c-warn) 10%, var(--c-panel));
  --blog-error-tint: color-mix(in srgb, var(--c-error) 8%, var(--c-panel));
  --blog-rule: 1px solid var(--c-border);
  --blog-focus: 3px solid var(--c-accent);
  --blog-transition: border-color var(--time-ui) var(--ease-ui), transform var(--time-ui) var(--ease-ui);
}

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

.blog-skip {
  position: fixed;
  z-index: 100;
  inset: 1rem auto auto 1rem;
  padding: 0.75rem 1rem;
  color: var(--c-on-accent);
  background: var(--c-accent);
  border-radius: var(--r-sm);
  transform: translateY(-200%);
}

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

.blog-list-page a:focus-visible,
.blog-list-page button:focus-visible,
.article-page a:focus-visible,
.article-page button:focus-visible {
  outline: var(--blog-focus);
  outline-offset: 4px;
}

.blog-list-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(2.5rem, 6vw, 5rem) 2rem;
}

.blog-list-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 2rem 24% 1rem var(--gutter);
  background: var(--blog-tint);
  border-radius: var(--r-lg);
}

.blog-list-hero h1 {
  max-width: 19ch;
  margin-block: 1rem;
  font-family: var(--font-display);
  font-size: var(--blog-list-title-size);
  font-weight: var(--weight-display);
  line-height: 1.3;
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  overflow-wrap: anywhere;
}

.blog-list-lead {
  max-width: 44rem;
  font-size: var(--blog-body-size);
  line-height: 1.9;
  color: var(--c-muted);
}

.blog-fact-row,
.blog-promo-actions,
.blog-card-meta,
.article-meta,
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
}

.blog-fact-row {
  margin-top: 1.5rem;
}

.blog-fact-row .badge,
.blog-card-meta .tag {
  white-space: normal;
  overflow-wrap: anywhere;
}

.blog-catalog {
  padding-block: 2rem 3rem;
}

.blog-catalog-title {
  margin: 0 0 1rem;
  font-size: var(--blog-h2-size);
  text-wrap: pretty;
  letter-spacing: var(--blog-tracking);
}

.blog-filters button {
  min-height: 2.75rem;
  padding: 0.55rem 1rem;
  border: var(--blog-rule);
  border-radius: var(--r-pill);
  background: var(--c-panel);
  color: var(--c-muted);
  font: inherit;
  cursor: pointer;
}

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

.blog-filters button[aria-pressed="true"] {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-on-accent);
}

.blog-status {
  margin-block: 1.25rem;
  font-size: var(--blog-small-size);
  color: var(--c-muted);
}

.blog-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.blog-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1.5rem;
  border: var(--blog-rule);
  border-radius: var(--r-lg);
  background: var(--c-panel);
  box-shadow: var(--shadow-card);
  transition: var(--blog-transition);
}

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

.blog-card-meta {
  justify-content: flex-start;
  font-size: var(--blog-meta-size);
  color: var(--c-muted);
}

.blog-card-meta time,
.post-nav-date {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.blog-card-meta .tag {
  padding: 0.3rem 0.65rem;
  border-radius: var(--r-pill);
  color: var(--c-on-accent);
  background: var(--c-accent);
}

.blog-card-title {
  margin-block: 1.1rem 0.75rem;
  font-size: var(--blog-h3-size);
  line-height: 1.6;
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  overflow-wrap: anywhere;
}

.blog-card-title a {
  color: var(--c-text);
  text-decoration: none;
}

.blog-card-title a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.blog-card-summary {
  margin: 0 0 1.5rem;
  color: var(--c-muted);
  font-size: var(--blog-small-size);
  line-height: 1.9;
  overflow-wrap: anywhere;
}

.blog-read-link {
  align-self: flex-start;
  margin-top: auto;
  color: var(--c-accent);
  font-size: var(--blog-small-size);
  font-weight: var(--weight-display);
  text-decoration: none;
}

.blog-read-link:hover {
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

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

.blog-list-promo {
  padding-block: 0 3rem;
}

/* 阅读列的盒宽同时包含左右 gutter，正文、面包屑与 hero 共用。 */
.reading-wrap,
.article-hero,
.article-breadcrumbs,
.breadcrumbs,
#post-nav,
#related-posts,
.article-page > .promo-block {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading) + var(--gutter) + var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
  min-width: 0;
}

.reading-wrap .article-hero,
.reading-wrap .article-breadcrumbs,
.reading-wrap .breadcrumbs,
.reading-wrap #post-nav,
.reading-wrap #related-posts {
  max-width: none;
  width: 100%;
  padding-inline: 0;
}

.article-breadcrumbs,
.breadcrumbs {
  padding-top: 1.5rem;
  margin-bottom: 1rem;
  color: var(--c-muted);
  font-size: var(--blog-small-size);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.article-breadcrumbs ol,
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.6rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-breadcrumbs li + li::before,
.breadcrumbs li + li::before {
  content: "›";
  margin-right: 0.6rem;
  color: var(--c-muted);
}

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

.article-hero {
  position: relative;
  isolation: isolate;
  padding-block: 2.5rem 2rem;
  background: none;
  border: 0;
  border-radius: var(--r-xl);
}

.article-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0.75rem 17% 1.25rem 0;
  background: var(--blog-tint);
  border: var(--blog-rule);
  border-radius: var(--r-lg);
}

.article-hero::after {
  content: "+";
  position: absolute;
  top: 0.7rem;
  right: 19%;
  font-family: var(--font-mono);
  font-size: var(--blog-h3-size);
  color: var(--c-muted);
  pointer-events: none;
}

.article-hero h1 {
  display: block;
  position: relative;
  margin-block: 1rem;
  font-family: var(--font-display);
  font-size: var(--blog-title-size);
  font-weight: var(--weight-display);
  line-height: 1.45;
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  overflow-wrap: anywhere;
}

.article-meta {
  justify-content: flex-start;
  font-size: var(--blog-meta-size);
  line-height: 1.7;
}

.article-meta > * {
  padding: 0.35rem 0.7rem;
  border: var(--blog-rule);
  border-radius: var(--r-pill);
  background: var(--c-panel);
  color: var(--c-muted);
}

.article-meta .tag {
  color: var(--c-on-accent);
  background: var(--c-accent);
  border-color: var(--c-accent);
}

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

.article-hero .article-meta,
.article-hero .article-summary,
.article-hero > .lead,
.article-hero > .summary {
  margin-left: 1rem;
}

.article-summary,
.article-hero > .lead,
.article-hero > .summary {
  margin-block: 1rem 0;
  font-size: var(--blog-body-size);
  line-height: 1.9;
  color: var(--c-muted);
}

.prose,
.article-body,
[data-article-body] {
  min-width: 0;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: 1.9;
  overflow-wrap: anywhere;
  counter-reset: blog-section;
}

.prose h2,
.article-body h2,
[data-article-body] h2 {
  display: block;
  margin-block: 2.5rem 1rem;
  font-family: var(--font-display);
  font-size: var(--blog-h2-size);
  line-height: 1.6;
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  counter-increment: blog-section;
}

.prose h2::before,
.article-body h2::before,
[data-article-body] h2::before {
  content: counter(blog-section, decimal-leading-zero);
  display: inline-block;
  margin-right: 0.7rem;
  padding: 0.15rem 0.45rem;
  vertical-align: 0.1em;
  border: var(--blog-rule);
  border-radius: var(--r-xs);
  font-family: var(--font-mono);
  font-size: var(--blog-meta-size);
  color: var(--c-muted);
  background: var(--c-panel-2);
}

.prose > h2:first-child,
.article-body > h2:first-child,
[data-article-body] > h2:first-child {
  margin-top: 0.75rem;
}

.prose h3,
.article-body h3,
[data-article-body] h3 {
  display: block;
  margin-block: 1.75rem 0.75rem;
  font-size: var(--blog-h3-size);
  line-height: 1.65;
  text-wrap: pretty;
  letter-spacing: var(--blog-tracking);
}

.prose p,
.article-body p,
[data-article-body] p {
  margin-block: 0 1.2rem;
}

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

.prose li,
.article-body li,
[data-article-body] li {
  margin-block: 0.45rem;
}

.prose a,
.article-body a,
[data-article-body] a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

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

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

.prose code,
.article-body code,
[data-article-body] code {
  padding: 0.15rem 0.35rem;
  border-radius: var(--r-xs);
  background: var(--c-panel-2);
  color: var(--c-accent);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  overflow-wrap: anywhere;
}

.prose pre,
.article-body pre,
[data-article-body] pre {
  position: relative;
  max-width: 100%;
  margin-block: 1.5rem;
  padding: 3rem 1.25rem 1.25rem;
  overflow: auto;
  border: var(--blog-rule);
  border-radius: var(--r-md);
  color: var(--c-on-accent);
  background: var(--c-accent-dark);
  line-height: 1.8;
}

.prose pre::before,
.article-body pre::before,
[data-article-body] pre::before {
  content: "配置记录";
  position: absolute;
  inset: 0.65rem auto auto 1.25rem;
  font-family: var(--font-mono);
  font-size: var(--blog-meta-size);
  color: var(--c-on-accent);
}

.prose pre code,
.article-body pre code,
[data-article-body] pre code {
  display: block;
  padding: 0;
  color: inherit;
  background: none;
  white-space: pre-wrap;
  word-break: break-word;
}

.prose .table-scroll,
.article-body .table-scroll,
[data-article-body] .table-scroll {
  max-width: 100%;
  margin-block: 1.5rem;
  overflow-x: auto;
  border: var(--blog-rule);
  border-radius: var(--r-md);
}

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

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

.prose :is(th, td),
.article-body :is(th, td),
[data-article-body] :is(th, td) {
  padding: 0.85rem 1rem;
  border: var(--blog-rule);
  text-align: left;
  vertical-align: top;
}

.prose thead th,
.article-body thead th,
[data-article-body] thead th {
  color: var(--c-on-accent);
  background: var(--c-accent);
}

.prose tbody th,
.article-body tbody th,
[data-article-body] tbody th {
  color: var(--c-text);
}

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

.prose tbody tr:nth-child(odd),
.article-body tbody tr:nth-child(odd),
[data-article-body] tbody tr:nth-child(odd) {
  background: var(--c-panel);
}

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

.callout,
.verdict,
.prose blockquote,
.article-body blockquote {
  position: relative;
  margin: 1.5rem 0;
  padding: 1.25rem 1.25rem 1.25rem 3.25rem;
  border: var(--blog-rule);
  border-left: 4px solid var(--c-accent);
  border-radius: var(--r-sm);
  background: var(--blog-tint);
  color: var(--c-text);
}

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

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

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

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

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

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

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-block: 1.5rem;
}

.stat-card {
  min-width: 0;
  padding: 1.25rem;
  border: var(--blog-rule);
  border-top: 3px solid var(--c-accent);
  border-radius: var(--r-md);
  background: var(--blog-tint);
}

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

.stat-num {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--font-mono);
  font-size: var(--blog-h2-size);
  font-weight: var(--weight-display);
  color: var(--c-accent);
  line-height: 1.5;
}

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

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

.check-list li {
  padding: 0.85rem 1rem;
  border: var(--blog-rule);
  border-radius: var(--r-sm);
  background: var(--c-panel);
}

.verdict {
  padding-left: 1.25rem;
  border-left-color: var(--c-accent);
  background: var(--c-panel-2);
}

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

.blog-list-promo .promo-block,
.reading-wrap .promo-block,
.article-page .promo-block {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-block: 2rem;
  padding: 1.75rem;
  overflow: hidden;
  border: 1px solid var(--c-accent);
  border-radius: var(--r-xl);
  color: var(--c-on-accent);
  background: var(--gradient-ink);
}

.promo-block::before {
  content: "+";
  position: absolute;
  z-index: -1;
  top: 0.4rem;
  right: 0.8rem;
  color: var(--c-on-accent);
  font-family: var(--font-mono);
  font-size: var(--blog-h2-size);
}

.promo-block :is(h2, h3) {
  margin: 0 0 0.6rem;
  color: inherit;
  font-size: var(--blog-h3-size);
  line-height: 1.6;
  text-wrap: pretty;
}

.promo-block p {
  margin: 0;
  color: var(--c-on-accent);
  font-size: var(--blog-body-size);
  line-height: 1.9;
}

.promo-block .btn-primary,
.promo-block > .btn-secondary {
  background: var(--c-panel);
  color: var(--c-accent);
  border: 1px solid var(--c-panel);
  text-decoration: none;
}

.promo-block .blog-promo-actions .btn-secondary {
  background: none;
  color: var(--c-on-accent);
  border: 1px solid var(--c-on-accent);
  text-decoration: none;
}

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

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

.post-nav-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-width: 0;
  padding: 1.25rem;
  border: var(--blog-rule);
  border-radius: var(--r-md);
  background: var(--c-panel);
  color: var(--c-text);
  text-decoration: none;
  transition: var(--blog-transition);
}

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

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

.post-nav-label,
.post-nav-date {
  color: var(--c-muted);
  font-size: var(--blog-meta-size);
}

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

#related-posts {
  padding-block: 1.5rem 2.5rem;
}

.related-heading {
  display: block;
  margin: 0 0 1.25rem;
  font-size: var(--blog-h2-size);
  line-height: 1.6;
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
}

.related-grid .blog-card {
  padding: 1.2rem;
}

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

.float-cta {
  position: fixed;
  z-index: 40;
  right: 1.25rem;
  bottom: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  max-width: calc(100vw - 2.5rem);
  min-height: 3rem;
  padding: 0.8rem 1.25rem;
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
  color: var(--c-on-accent);
  background: var(--gradient-ink);
  box-shadow: var(--shadow-card);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.5;
  text-decoration: none;
}

.float-cta svg {
  flex: 0 0 auto;
  width: 1.1rem;
  height: 1.1rem;
  fill: none;
  stroke: currentColor;
}

@media (max-width: 1000px) {
  .blog-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

  .prose .table-scroll table,
  .article-body .table-scroll table,
  [data-article-body] .table-scroll table {
    display: table;
    width: 100%;
    max-width: none;
  }
}

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

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

  .blog-list-hero::before {
    right: var(--gutter);
  }

  .blog-card {
    padding: 1.25rem;
  }

  .article-hero {
    padding-block: 2rem 1.5rem;
  }

  .article-hero::before {
    right: 8%;
  }

  .article-hero::after {
    right: 10%;
  }

  .article-hero .article-meta,
  .article-hero .article-summary,
  .article-hero > .lead,
  .article-hero > .summary {
    margin-left: 0.5rem;
  }

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

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

  .blog-list-promo .promo-block,
  .reading-wrap .promo-block,
  .article-page .promo-block {
    padding: 1.5rem;
  }

  .float-cta {
    right: 0.75rem;
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    max-width: calc(100vw - 1.5rem);
    min-height: 2.75rem;
    padding: 0.65rem 1rem;
  }

  .article-page:has(.float-cta) #site-footer,
  body:has(.float-cta) #site-footer {
    padding-bottom: calc(5rem + env(safe-area-inset-bottom));
  }
}

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

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