:root {
  --blog-column: 54rem;
  --blog-gutter: 1.5rem;
  --blog-box: calc(var(--blog-column) + var(--blog-gutter) * 2);
  --blog-body-size: 1rem;
  --blog-small-size: 0.8125rem;
  --blog-h1-size: clamp(1.8rem, 4.2vw, 2.6rem);
  --blog-list-title: clamp(2rem, 4.6vw, 3rem);
  --blog-h2-size: clamp(1.3rem, 2.5vw, 1.6rem);
  --blog-h3-size: 1.3rem;
  --blog-weight-normal: 400;
  --blog-weight-medium: 500;
  --blog-weight-bold: 700;
  --blog-leading: 1.9;
  --blog-title-spacing: -0.015em;
  --blog-r-card: var(--r-card, 12px);
  --blog-r-small: var(--r-small, 4px);
  --blog-r-button: var(--r-btn, 6px);
  --blog-r-pill: var(--r-pill, 999px);
  --blog-paper: var(--bg-panel);
  --blog-tint: color-mix(in srgb, var(--bg-panel-2) 60%, var(--bg-panel));
  --blog-wash: color-mix(in srgb, var(--bg) 97%, var(--bg-panel-2));
  --blog-ink-soft: color-mix(in srgb, var(--text) 10%, transparent);
  --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-shadow: 0 14px 36px var(--blog-ink-soft);
  --blog-duration: 160ms;
  --blog-ease: ease-out;
}

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

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

.reading-wrap {
  width: 100%;
  max-width: var(--blog-box);
  margin-inline: auto;
  padding-inline: var(--blog-gutter);
}

.blog-index h1,
.blog-index h2,
.blog-index h3,
.article-hero h1,
.blog-band h1,
.prose h1,
.prose h2,
.prose h3,
#related-posts h2,
#related-posts h3 {
  display: block;
  font-family: var(--font-display);
  text-wrap: pretty;
  letter-spacing: var(--blog-title-spacing);
  overflow-wrap: anywhere;
  word-break: normal;
}

.blog-index h1,
.article-hero h1,
.blog-band h1 {
  font-weight: var(--blog-weight-normal);
  line-height: 1.35;
}

.blog-index-hero {
  padding-block: clamp(2.75rem, 7vw, 5rem);
  background: linear-gradient(var(--wall-top, var(--bg-panel)), var(--wall-bottom, var(--bg-panel-2)));
  border-block: 1px solid var(--border);
}

.blog-index-hero h1 {
  margin-block: 0.5rem 1rem;
  font-size: var(--blog-list-title);
}

.blog-eyebrow {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--blog-small-size);
  letter-spacing: 0.08em;
}

.blog-lead {
  max-width: 42rem;
  margin-block: 0;
  color: var(--text-muted);
  font-size: 1.125rem;
  line-height: var(--blog-leading);
}

.blog-library {
  padding-block: 2rem;
}

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

.blog-filter {
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-button);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: var(--blog-weight-medium);
  cursor: pointer;
  transition: background var(--blog-duration) var(--blog-ease), border-color var(--blog-duration) var(--blog-ease);
}

.blog-filter:hover {
  border-color: var(--text-muted);
}

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

.blog-results {
  min-height: 1.5em;
  margin-block: 1.25rem;
  color: var(--text-muted);
  font-size: var(--blog-small-size);
}

.blog-post-grid,
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.article-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: var(--blog-r-card);
  background: var(--bg-panel);
  color: var(--text);
  transition: border-color var(--blog-duration) var(--blog-ease), box-shadow var(--blog-duration) var(--blog-ease);
}

.article-card:hover,
.article-card:focus-within {
  border-top-color: var(--text);
  box-shadow: var(--blog-shadow);
}

.article-meta {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.25rem 0;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.8;
}

.article-meta > * {
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  color: inherit;
}

.article-meta > * + *::before {
  content: "·";
  padding-inline: 0.625rem;
}

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

.article-card h2,
.article-card h3 {
  margin-block: 0.875rem;
  font-size: var(--blog-h3-size);
  font-weight: var(--blog-weight-medium);
  line-height: 1.55;
}

.article-card h2::after {
  content: none;
}

.article-card a,
.post-nav-card,
.blog-resource-links a {
  color: var(--text);
}

.article-card h2 a,
.article-card h3 a {
  text-decoration: none;
}

.article-card h2 a:hover,
.article-card h3 a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

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

.article-read {
  align-self: flex-start;
  margin-top: auto;
  font-size: 0.9375rem;
  text-underline-offset: 0.25em;
}

.blog-empty {
  grid-column: 1 / -1;
  padding: 1.5rem;
  border: 1px dashed var(--border);
  border-radius: var(--blog-r-card);
  background: var(--blog-tint);
  color: var(--text-muted);
  line-height: var(--blog-leading);
}

.blog-help {
  padding-block: 1.5rem 3.5rem;
}

.blog-help h2 {
  font-size: var(--blog-h2-size);
}

.blog-help p {
  color: var(--text-muted);
  line-height: var(--blog-leading);
}

.blog-resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  line-height: 1.8;
}

.breadcrumbs,
.breadcrumb,
.blog-breadcrumb {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--blog-box);
  margin: 1.5rem auto 1.25rem;
  padding-inline: var(--blog-gutter);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  line-height: 1.9;
  overflow-wrap: anywhere;
}

.breadcrumbs ol,
.breadcrumb ol,
.blog-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.625rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li + li::before,
.breadcrumb li + li::before,
.blog-breadcrumb li + li::before {
  content: "›";
  margin-right: 0.625rem;
}

.breadcrumbs a,
.breadcrumb a,
.blog-breadcrumb a {
  color: inherit;
  text-underline-offset: 0.2em;
}

.article-hero,
.blog-band {
  box-sizing: border-box;
  width: 100%;
  max-width: none;
  margin-inline: 0;
  margin-block: 0 2rem;
  padding-block: clamp(2rem, 4vw, 3rem);
  padding-inline: max(var(--blog-gutter), calc((100% - var(--blog-column)) / 2));
  border: 0;
  border-block: 1px solid var(--border);
  border-radius: 0;
  background: linear-gradient(180deg, var(--bg-panel), var(--blog-tint));
  box-shadow: none;
  color: var(--text);
}

.blog-band .article-hero,
.article-hero .blog-band {
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
}

.article-hero > .reading-wrap,
.blog-band > .reading-wrap {
  max-width: var(--blog-column);
  padding-inline: 0;
}

.article-hero h1,
.blog-band h1 {
  margin-block: 0.875rem 1rem;
  font-size: var(--blog-h1-size);
}

.article-hero p,
.blog-band p {
  margin-block: 0.75rem 0;
  font-size: var(--blog-body-size);
  line-height: var(--blog-leading);
  color: var(--text-muted);
}

.article-hero .article-meta,
.blog-band .article-meta {
  justify-content: flex-start;
  font-size: var(--blog-small-size);
}

.prose {
  min-width: 0;
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-leading);
  overflow-wrap: anywhere;
  counter-reset: blog-section;
}

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

.prose p,
.prose ul,
.prose ol {
  margin-block: 1rem 1.35rem;
}

.prose h2 {
  margin-block: 2.5rem 1rem;
  font-size: var(--blog-h2-size);
  font-weight: var(--blog-weight-medium);
  line-height: 1.55;
  counter-increment: blog-section;
  scroll-margin-top: var(--anchor-offset, 6rem);
}

.prose h2::before {
  content: counter(blog-section, decimal-leading-zero);
  display: inline-block;
  margin-right: 0.75rem;
  padding: 0.1rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-small);
  background: var(--bg-panel-2);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: var(--blog-weight-normal);
  letter-spacing: 0;
  vertical-align: 0.15em;
}

.prose h2::after,
.blog-help h2::after,
#related-posts > h2::after {
  content: "。";
  color: var(--accent);
}

.prose h3 {
  margin-block: 1.75rem 0.75rem;
  font-size: var(--blog-h3-size);
  font-weight: var(--blog-weight-medium);
  line-height: 1.6;
}

.prose li + li {
  margin-top: 0.45rem;
}

.prose a:not(.btn) {
  color: var(--text);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

.prose strong {
  font-weight: var(--blog-weight-bold);
}

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

.prose figure {
  margin: 1.75rem 0;
}

.prose figcaption {
  margin-top: 0.625rem;
  color: var(--text-muted);
  font-size: var(--blog-small-size);
  text-align: center;
}

.prose blockquote {
  margin: 1.75rem 0;
  padding: 1rem 1.5rem;
  border-left: 3px solid var(--text-muted);
  background: var(--blog-tint);
  color: var(--text-muted);
  font-family: var(--font-display);
}

.prose blockquote p {
  margin-block: 0.5rem;
}

.prose .table-scroll {
  max-width: 100%;
  margin-block: 1.75rem;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-small);
}

.prose table {
  width: 100%;
  margin-block: 1.75rem;
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.75;
  text-align: left;
}

.prose .table-scroll table {
  min-width: 38rem;
  margin: 0;
}

.prose th,
.prose td {
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  vertical-align: top;
}

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

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

.prose tbody tr:nth-child(even) {
  background: var(--blog-tint);
}

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

.prose caption {
  padding-bottom: 0.75rem;
  color: var(--text-muted);
  text-align: left;
}

.prose code,
.prose pre,
.stat-num,
.prose .num {
  font-family: var(--font-mono);
}

.prose :not(pre) > code {
  padding: 0.15em 0.35em;
  border: 1px solid var(--border);
  border-radius: var(--blog-r-small);
  background: var(--blog-tint);
  color: var(--text);
  font-size: 0.875em;
  overflow-wrap: anywhere;
}

.prose pre {
  position: relative;
  max-width: 100%;
  margin-block: 1.75rem;
  padding: 3rem 1.25rem 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--text-muted);
  border-radius: var(--blog-r-card);
  background: var(--text);
  color: var(--bg-panel);
  font-size: 0.875rem;
  line-height: 1.85;
  tab-size: 2;
}

.prose pre::before {
  content: "终端 / 配置示例";
  position: absolute;
  top: 0.75rem;
  left: 1.25rem;
  color: var(--bg-panel-2);
  font-family: var(--font-body);
  font-size: var(--blog-small-size);
  letter-spacing: 0.04em;
}

.prose pre code {
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font-size: inherit;
  white-space: pre;
  overflow-wrap: normal;
}

.callout,
.prose .callout {
  position: relative;
  margin-block: 1.75rem;
  padding: 1rem 1.25rem 1rem 3.5rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--text-muted);
  border-radius: var(--blog-r-small);
  background: var(--blog-tint);
  color: var(--text);
}

.callout::before {
  content: "i";
  position: absolute;
  top: 1.1rem;
  left: 1rem;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid var(--text-muted);
  border-radius: var(--blog-r-pill);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.4rem;
  text-align: center;
}

.callout p:first-child {
  margin-top: 0;
}

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

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

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

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

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

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: 1rem;
  margin-block: 1.75rem;
}

.stat-card {
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--text-muted);
  border-radius: var(--blog-r-card);
  background: var(--bg-panel);
  color: var(--text);
}

.stat-card:nth-child(even) {
  border-top-color: var(--text);
  background: var(--bg-panel-2);
}

.stat-num {
  display: block;
  margin-bottom: 0.5rem;
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: var(--blog-weight-medium);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.stat-label {
  display: block;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.prose .check-list {
  margin-block: 1.75rem;
  padding: 0;
  list-style: none;
}

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

.verdict {
  margin-block: 1.75rem;
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--text);
  border-radius: var(--blog-r-small);
  background: var(--bg-panel-2);
  color: var(--text);
}

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

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

.verdict strong {
  font-weight: var(--blog-weight-bold);
}

.promo-block {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-block: 2.5rem 1.5rem;
  padding: 1.75rem;
  border: 1px solid var(--text-muted);
  border-radius: var(--blog-r-card);
  background: linear-gradient(125deg, var(--text), var(--text-muted));
  color: var(--bg-panel);
  box-shadow: var(--blog-shadow);
}

.promo-block > div {
  flex: 1 1 18rem;
  min-width: 0;
}

.promo-block h3,
.prose .promo-block h3 {
  margin: 0 0 0.5rem;
  color: var(--bg-panel);
  font-family: var(--font-display);
  font-size: var(--blog-h3-size);
  font-weight: var(--blog-weight-medium);
}

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

.promo-block .btn {
  flex: 0 0 auto;
  min-height: 2.75rem;
  border: 1px solid var(--bg-panel);
  border-radius: var(--blog-r-button);
  background: var(--bg-panel);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: var(--blog-weight-medium);
  text-decoration: none;
  white-space: nowrap;
}

.promo-block .btn:hover {
  background: var(--bg-panel-2);
  border-color: var(--bg-panel-2);
  color: var(--text);
}

.promo-block .btn-line {
  background: none;
  color: var(--bg-panel);
}

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

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

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

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

.related-card {
  padding: 1.25rem;
}

#related-posts .related-card h3 {
  font-size: 1.125rem;
}

#related-posts .article-summary {
  font-size: 0.9375rem;
}

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

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

.post-nav-card {
  display: block;
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: var(--blog-r-card);
  background: var(--bg-panel);
  text-decoration: none;
  transition: border-color var(--blog-duration) var(--blog-ease), box-shadow var(--blog-duration) var(--blog-ease);
}

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

.post-nav-card:hover,
.post-nav-card:focus-visible {
  border-top-color: var(--text);
  box-shadow: var(--blog-shadow);
}

.post-nav-label {
  display: block;
  margin-bottom: 0.625rem;
  color: var(--text-muted);
  font-size: var(--blog-small-size);
}

.post-nav-title {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.float-cta {
  position: fixed;
  right: max(1.25rem, env(safe-area-inset-right));
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  z-index: 40;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  max-width: calc(100vw - 2.5rem);
  min-height: 3rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--accent-dark);
  border-radius: var(--blog-r-pill);
  background: var(--accent);
  color: var(--white);
  box-shadow: var(--blog-shadow);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: var(--blog-weight-medium);
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
}

.float-cta:hover {
  background: var(--accent-dark);
  color: var(--white);
}

.float-cta svg {
  flex: 0 0 auto;
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
}

.blog-skip {
  position: absolute;
  top: 0.5rem;
  left: 1.5rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  border: 1px solid var(--text);
  border-radius: var(--blog-r-button);
  background: var(--bg-panel);
  color: var(--text);
  transform: translateY(calc(-100% - 1rem));
}

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

.blog-filter:focus-visible,
.article-card a:focus-visible,
.post-nav-card:focus-visible,
.float-cta:focus-visible,
.blog-resource-links a:focus-visible,
.prose a:focus-visible,
.prose .table-scroll:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 4px;
}

@media (max-width: 860px) {
  .related-grid {
    grid-template-columns: 1fr;
  }

  .prose table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
  }

  .prose .table-scroll table {
    display: table;
    width: 100%;
    max-width: none;
  }
}

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

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

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

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

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

  .prose h2 {
    margin-top: 2rem;
  }

  .promo-block {
    padding: 1.25rem;
  }

  .float-cta {
    right: max(1rem, env(safe-area-inset-right));
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    min-height: 2.75rem;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
  }

  body:has(.float-cta) {
    padding-bottom: calc(5rem + env(safe-area-inset-bottom));
  }

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

  .prose pre {
    padding-inline: 1rem;
  }
}

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

/* fab-guard:start */
@supports (animation-timeline:scroll()){
  .float-cta{animation:fab-guard-in linear both;animation-timeline:scroll(root);animation-range:0 60vh}
}
@keyframes fab-guard-in{0%,40%{opacity:0;visibility:hidden}100%{opacity:1;visibility:visible}}
body:has(.float-cta) > footer:last-of-type{padding-bottom:calc(88px + env(safe-area-inset-bottom,0px))!important}
body:has(.float-cta):not(:has(> footer)){padding-bottom:calc(88px + env(safe-area-inset-bottom,0px))!important}
/* fab-guard:end */