:root {
  --blog-reading: 56rem;
  --blog-gutter: max(1.5rem, var(--gutter));
  --blog-fs-body: 1rem;
  --blog-fs-small: 0.875rem;
  --blog-fs-card: 1.2rem;
  --blog-fs-h1: clamp(1.8rem, 4vw, 2.6rem);
  --blog-fs-list-h1: clamp(2rem, 5vw, 3rem);
  --blog-fs-h2: clamp(1.3rem, 2.5vw, 1.6rem);
  --blog-fs-h3: 1.3rem;
  --blog-fs-stat: 1.8rem;
  --blog-tracking: -0.015em;
  --blog-weight-strong: 750;
  --blog-weight-display: 900;
  --blog-band-bg: linear-gradient(110deg, var(--halo-1), var(--halo-2) 52%, var(--halo-3));
  --blog-promo-bg: linear-gradient(115deg, var(--halo-1), var(--halo-2) 55%, var(--halo-3));
  --blog-rule: color-mix(in srgb, var(--accent) 25%, var(--border));
  --blog-tint: color-mix(in srgb, var(--accent) 7%, var(--bg-panel));
  --blog-blue-tint: color-mix(in srgb, var(--blob-sky) 36%, var(--bg-panel));
  --blog-warning-tint: color-mix(in srgb, var(--warn) 10%, var(--bg-panel));
  --blog-success-tint: color-mix(in srgb, var(--success) 8%, var(--bg-panel));
  --blog-shadow: 0 14px 42px color-mix(in srgb, var(--accent) 10%, transparent);
  --blog-focus: color-mix(in srgb, var(--accent) 85%, var(--text));
  --blog-transition: 160ms ease;
}

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

.reading-wrap,
.article-hero,
.blog-breadcrumbs,
.breadcrumbs,
.blog-article,
[data-blog-body] {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading) + var(--blog-gutter) + var(--blog-gutter));
  margin-inline: auto;
  padding-inline: var(--blog-gutter);
  min-width: 0;
}

.blog-list-page h1,
.blog-list-page h2,
.blog-list-page h3,
.article-hero h1,
.blog-article h1,
.blog-article h2,
.blog-article h3,
[data-blog-body] h1,
[data-blog-body] h2,
[data-blog-body] h3,
#related-posts h2,
#related-posts h3,
.promo-block h2,
.promo-block h3 {
  display: block;
  color: var(--text);
  font-family: var(--font-display);
  letter-spacing: var(--blog-tracking);
  text-wrap: pretty;
  overflow-wrap: anywhere;
}

.blog-skip {
  position: absolute;
  inset-block-start: 0.75rem;
  inset-inline-start: 1.5rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  border-radius: var(--r-sm);
  background: var(--bg-panel);
  color: var(--text);
  transform: translateY(-180%);
}

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

.blog-list-page a:focus-visible,
.blog-list-page button:focus-visible,
.blog-article a:focus-visible,
[data-blog-body] a:focus-visible,
.blog-breadcrumbs a:focus-visible,
.breadcrumbs a:focus-visible,
#related-posts a:focus-visible,
#post-nav a:focus-visible,
.promo-block a:focus-visible,
.float-cta:focus-visible {
  outline: 3px solid var(--blog-focus);
  outline-offset: 4px;
}

.blog-band {
  position: relative;
  isolation: isolate;
  border-block: 1px solid var(--blog-rule);
  border-inline: 0;
  border-radius: 0;
  background: var(--blog-band-bg);
  box-shadow: none;
  padding: 2.5rem var(--blog-gutter);
}

.blog-band > .reading-wrap,
.blog-band > .article-hero {
  padding-block: 0;
}

.blog-band:not(.article-hero) > .reading-wrap,
.blog-band:not(.article-hero) > .article-hero {
  padding-inline: 0;
  max-width: var(--blog-reading);
}

.article-hero.blog-band {
  border-inline: 0;
  border-radius: 0;
  box-shadow: 0 0 0 100vmax var(--blog-tint);
  clip-path: inset(0 -100vmax);
  background: var(--blog-band-bg);
}

.blog-list-hero {
  padding-block: 3.5rem;
}

.blog-list-hero h1 {
  margin: 0.65rem 0 1rem;
  font-size: var(--blog-fs-list-h1);
  font-weight: var(--blog-weight-display);
  line-height: 1.2;
}

.blog-kicker {
  margin: 0;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--blog-fs-small);
  line-height: 1.8;
}

.blog-lede,
.article-hero > p,
.article-hero .article-summary {
  margin: 1rem 0 0;
  color: var(--text-muted);
  font-size: var(--blog-fs-body);
  line-height: 1.85;
}

.blog-index-content {
  padding-block: 2rem;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.blog-filter {
  min-height: 2.75rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-fs-small);
  font-weight: var(--blog-weight-strong);
  cursor: pointer;
  transition: border-color var(--blog-transition), background var(--blog-transition);
}

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

.blog-filter.is-active,
.blog-filter[aria-pressed="true"] {
  border-color: var(--ink-900);
  background: var(--ink-900);
  color: var(--ink-text);
}

.blog-status {
  min-height: 1.8em;
  margin: 1rem 0;
  color: var(--text-muted);
  font-size: var(--blog-fs-small);
  line-height: 1.8;
}

.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(--blog-rule);
  border-radius: var(--r-md);
  background: var(--bg-panel);
  box-shadow: var(--blog-shadow);
  transition: border-color var(--blog-transition), transform var(--blog-transition);
}

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

.article-meta,
.article-hero .article-meta,
.article-hero .blog-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: baseline;
  gap: 0.35rem 0.65rem;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  color: var(--text-muted);
  font-size: var(--blog-fs-small);
  line-height: 1.8;
}

.article-hero .article-meta > *,
.article-hero .blog-meta > * {
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  color: inherit;
  box-shadow: none;
}

.article-hero .article-meta > :nth-child(n + 3)::before,
.article-hero .blog-meta > :nth-child(n + 3)::before {
  content: "· ";
}

.article-card h3 {
  margin: 0.85rem 0 0.75rem;
  font-size: var(--blog-fs-card);
  font-weight: var(--blog-weight-strong);
  line-height: 1.6;
}

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

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

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

.article-card > .text-link {
  align-self: flex-start;
  margin-top: auto;
  color: var(--accent-dark);
  font-size: var(--blog-fs-small);
  font-weight: var(--blog-weight-strong);
  text-underline-offset: 0.2em;
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-panel);
  color: var(--text-muted);
  line-height: 1.8;
}

.blog-breadcrumbs,
.breadcrumbs {
  margin-top: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--text-muted);
  font-size: var(--blog-fs-small);
  line-height: 1.85;
  overflow-wrap: anywhere;
}

.blog-breadcrumbs ol,
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.blog-breadcrumbs li + li::before,
.breadcrumbs li + li::before {
  content: "→";
  margin-right: 0.45rem;
  color: var(--text-muted);
}

.blog-breadcrumbs a,
.breadcrumbs a {
  color: var(--text-muted);
  text-underline-offset: 0.2em;
}

.article-hero {
  padding-block: 2.5rem;
}

.article-hero h1 {
  margin: 0.9rem 0 1rem;
  font-size: var(--blog-fs-h1);
  font-weight: var(--blog-weight-display);
  line-height: 1.45;
}

.prose.blog-article,
[data-blog-body] {
  padding-top: 1.75rem;
  padding-bottom: 1.5rem;
  color: var(--text);
  font-size: var(--blog-fs-body);
  line-height: 1.9;
  counter-reset: blog-section;
  overflow-wrap: anywhere;
}

.blog-article p,
[data-blog-body] p {
  margin-block: 0 1.15rem;
}

.blog-article h2,
[data-blog-body] h2 {
  position: relative;
  margin: 2.25rem 0 1rem;
  padding-top: 0.8rem;
  font-size: var(--blog-fs-h2);
  font-weight: var(--blog-weight-strong);
  line-height: 1.65;
}

.blog-article h2::before,
[data-blog-body] h2::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 2.25rem;
  height: 3px;
  border-radius: var(--r-pill);
  background: var(--accent);
}

.blog-article > h2:first-child,
[data-blog-body] > h2:first-child,
.blog-article > section:first-child > h2:first-child,
[data-blog-body] > section:first-child > h2:first-child {
  margin-top: 0.5rem;
}

.blog-article h3,
[data-blog-body] h3 {
  margin: 1.6rem 0 0.8rem;
  font-size: var(--blog-fs-h3);
  font-weight: var(--blog-weight-strong);
  line-height: 1.7;
}

.blog-article ul,
.blog-article ol,
[data-blog-body] ul,
[data-blog-body] ol {
  margin: 1rem 0 1.4rem;
  padding-left: 1.6rem;
}

.blog-article li,
[data-blog-body] li {
  margin-block: 0.5rem;
}

.blog-article a,
[data-blog-body] a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

.blog-article strong,
[data-blog-body] strong {
  color: var(--text);
  font-weight: var(--blog-weight-strong);
}

.blog-article img,
[data-blog-body] img {
  max-width: 100%;
  height: auto;
  border-radius: var(--r-md);
}

.blog-article figure,
[data-blog-body] figure {
  margin: 1.5rem 0;
}

.blog-article figcaption,
[data-blog-body] figcaption {
  margin-top: 0.5rem;
  color: var(--text-muted);
  font-size: var(--blog-fs-small);
}

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

.blog-article :not(pre) > code,
[data-blog-body] :not(pre) > code {
  padding: 0.12em 0.35em;
  border-radius: var(--r-xs);
  background: var(--bg-panel-2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--blog-fs-small);
  white-space: normal;
  overflow-wrap: anywhere;
}

.blog-article pre,
[data-blog-body] pre {
  position: relative;
  max-width: 100%;
  margin: 1.5rem 0;
  padding: 2.8rem 1.3rem 1.3rem;
  overflow-x: auto;
  border: 1px solid var(--ink-line);
  border-radius: var(--r-md);
  background: var(--ink-900);
  color: var(--ink-text);
  font-family: var(--font-mono);
  font-size: var(--blog-fs-small);
  line-height: 1.8;
  white-space: pre;
}

.blog-article pre::before,
[data-blog-body] pre::before {
  content: "VPNHL / 检视记录";
  position: absolute;
  top: 0.7rem;
  left: 1.3rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: var(--blog-fs-small);
}

.blog-article pre code,
[data-blog-body] pre code {
  padding: 0;
  background: none;
  color: inherit;
  font: inherit;
  white-space: inherit;
  overflow-wrap: normal;
}

.blog-article .table-scroll,
[data-blog-body] .table-scroll {
  max-width: 100%;
  margin: 1.5rem 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  overscroll-behavior-inline: contain;
}

.blog-article table,
[data-blog-body] table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  color: var(--text);
  background: var(--bg-panel);
  font-size: var(--blog-fs-small);
  line-height: 1.8;
}

.blog-article .table-scroll table,
[data-blog-body] .table-scroll table {
  margin: 0;
}

.blog-article caption,
[data-blog-body] caption {
  padding: 0.85rem 1rem;
  color: var(--text-muted);
  text-align: left;
}

.blog-article th,
.blog-article td,
[data-blog-body] th,
[data-blog-body] td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
  word-break: keep-all;
  overflow-wrap: normal;
}

.blog-article thead th,
[data-blog-body] thead th {
  background: var(--ink-900);
  color: var(--ink-text);
  font-weight: var(--blog-weight-strong);
}

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

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

.blog-article blockquote,
[data-blog-body] blockquote {
  margin: 1.5rem 0;
  padding: 1.15rem 1.4rem;
  border-left: 3px solid var(--accent);
  border-radius: var(--r-sm);
  background: var(--bg-panel);
  color: var(--text-muted);
}

.callout {
  position: relative;
  margin: 1.5rem 0;
  padding: 1.2rem 1.2rem 1.2rem 3.7rem;
  border-left: 3px solid var(--accent);
  border-radius: var(--r-sm);
  background: var(--blog-tint);
  color: var(--text);
  line-height: 1.85;
}

.callout::before {
  content: "i";
  position: absolute;
  top: 1.2rem;
  left: 1rem;
  display: inline-block;
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-icon);
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-weight: var(--blog-weight-strong);
  line-height: 1.65rem;
  text-align: center;
}

.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);
  color: var(--text);
}

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

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

.callout > :last-child,
.verdict > :last-child,
.blog-article blockquote > :last-child,
[data-blog-body] blockquote > :last-child {
  margin-bottom: 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.stat-card {
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--blog-rule);
  border-top: 3px solid var(--accent);
  border-radius: var(--r-md);
  background: var(--blog-tint);
}

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

.stat-num {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--blog-fs-stat);
  font-weight: var(--blog-weight-strong);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

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

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

.check-list li {
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg-panel);
  list-style: none;
}

.verdict {
  margin: 1.5rem 0;
  padding: 1.2rem 1.4rem;
  border-left: 4px solid var(--accent);
  border-radius: var(--r-sm);
  background: var(--blog-tint);
  color: var(--text);
  line-height: 1.85;
}

.verdict > strong:first-child {
  display: inline-block;
  margin-right: 0.45rem;
}

.blog-list-promo {
  padding-block: 0.5rem 2.5rem;
}

.promo-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-block: 1.5rem;
  padding: 1.75rem;
  border: 1px solid var(--blog-rule);
  border-radius: var(--r-lg);
  background: var(--blog-promo-bg);
  color: var(--text);
  box-shadow: var(--blog-shadow);
}

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

.promo-block h2,
.promo-block h3 {
  margin: 0 0 0.5rem;
  font-size: var(--blog-fs-h3);
  line-height: 1.6;
  font-weight: var(--blog-weight-strong);
}

.promo-block p {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--blog-fs-body);
  line-height: 1.85;
}

.blog-promo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.promo-block .btn-primary {
  border-color: var(--bg-panel);
  background: var(--bg-panel);
  color: var(--text);
  box-shadow: none;
}

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

.promo-block .btn-ghost {
  border-color: var(--text);
  background: none;
  color: var(--text);
}

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

.reading-wrap > #related-posts,
.reading-wrap > #post-nav,
.blog-article > #related-posts,
.blog-article > #post-nav,
[data-blog-body] > #related-posts,
[data-blog-body] > #post-nav {
  max-width: 100%;
  padding-inline: 0;
}

#related-posts {
  padding-block: 1.25rem 1.5rem;
}

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

#related-posts > h2 {
  margin: 0 0 1rem;
  padding-top: 0;
  font-size: var(--blog-fs-h2);
  line-height: 1.6;
}

#related-posts > h2::before {
  content: none;
}

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

.related-card {
  padding: 1.2rem;
}

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

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

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

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

.post-nav-label {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--accent-dark);
  font-size: var(--blog-fs-small);
  font-weight: var(--blog-weight-strong);
}

.post-nav-card strong {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--text);
  font-size: var(--blog-fs-body);
  line-height: 1.8;
  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;
  gap: 0.6rem;
  max-width: calc(100vw - 3rem);
  padding: 0.85rem 1.25rem;
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--bg-panel);
  box-shadow: var(--blog-shadow);
  font-family: var(--font-body);
  font-size: var(--blog-fs-small);
  font-weight: var(--blog-weight-strong);
  line-height: 1.5;
  text-decoration: none;
}

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

.float-cta svg {
  flex: 0 0 auto;
  width: 1.2rem;
  height: 1.2rem;
  stroke: currentColor;
}

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

  .blog-article .table-scroll table,
  [data-blog-body] .table-scroll table {
    display: table;
    width: 100%;
    max-width: none;
    min-width: 36rem;
  }

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

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

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

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

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

  .blog-list-hero {
    padding-block: 2.25rem;
  }

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

  .blog-filters {
    gap: 0.5rem;
  }

  .blog-filter {
    padding-inline: 0.8rem;
  }

  .blog-article h2,
  [data-blog-body] h2 {
    margin-top: 1.75rem;
  }

  .float-cta {
    position: static;
    display: flex;
    width: fit-content;
    max-width: calc(100% - 3rem);
    margin: 1rem auto 1.5rem;
    transform: none;
  }
}

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

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