:root {
  --blog-reading: 56rem;
  --blog-inset: max(1.5rem, var(--gutter));
  --blog-title: clamp(1.85rem, 3.8vw, 2.6rem);
  --blog-list-title: clamp(2rem, 4.2vw, 3rem);
  --blog-h2: clamp(1.3rem, 2.6vw, 1.6rem);
  --blog-h3: 1.3rem;
  --blog-body: 1rem;
  --blog-small: 0.875rem;
  --blog-stat: 1.75rem;
  --blog-leading: 1.9;
  --blog-heading-leading: 1.45;
  --blog-tracking: -0.015em;
  --blog-tint: color-mix(in srgb, var(--accent) 5%, var(--panel));
  --blog-tint-strong: color-mix(in srgb, var(--accent) 10%, var(--bg));
  --blog-warning-tint: color-mix(in srgb, var(--warn) 10%, var(--panel));
  --blog-success-tint: color-mix(in srgb, var(--success) 9%, var(--panel));
  --blog-shadow: 0 12px 36px var(--sh-10);
  --blog-card-padding: 1.5rem;
}

.blog-index *,
.article-hero *,
.reading-wrap *,
#related-posts *,
#post-nav * {
  box-sizing: border-box;
}

.journal-main {
  padding-bottom: 3rem;
}

.journal-skip {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--on-accent);
  transform: translateY(-180%);
}

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

.blog-index :focus-visible,
.article-hero :focus-visible,
.reading-wrap :focus-visible,
#related-posts :focus-visible,
#post-nav :focus-visible,
.float-cta:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

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

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumbs li {
  min-width: 0;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.75rem;
  color: var(--muted);
}

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

.journal-hero,
.article-hero {
  position: relative;
  isolation: isolate;
  padding-block: 2.5rem;
}

.journal-hero::before,
.article-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0.75rem 18% 1.5rem var(--blog-inset);
  border-radius: var(--r-sm);
  background: var(--blog-tint-strong);
  pointer-events: none;
}

.journal-hero {
  padding-inline: var(--blog-inset);
  margin-block: 0 2rem;
}

.journal-hero::before {
  left: 0;
  right: 24%;
}

.journal-kicker {
  margin: 0 0 1rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
}

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

.journal-intro {
  max-width: 42rem;
  margin: 0 0 0 1.25rem;
  color: var(--muted);
  line-height: var(--blog-leading);
}

.journal-hero h1,
.article-hero h1,
.article-card h2,
.article-card h3,
.reading-wrap h1,
.reading-wrap h2,
.reading-wrap h3,
#related-posts h2 {
  display: block;
  font-family: var(--font-display);
  font-weight: var(--weight-medium);
  letter-spacing: var(--blog-tracking);
  line-height: var(--blog-heading-leading);
  text-wrap: pretty;
  overflow-wrap: anywhere;
}

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

.journal-filters button {
  min-height: 2.75rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--panel);
  color: var(--muted);
  font: inherit;
  font-size: var(--blog-small);
  cursor: pointer;
  transition: background var(--ease-time), color var(--ease-time), border-color var(--ease-time);
}

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

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

.journal-status {
  min-height: 1.8em;
  margin: 1.25rem 0;
  color: var(--muted);
  font-size: var(--blog-small);
}

.journal-grid,
.related-grid,
.stat-grid,
#post-nav {
  display: grid;
  gap: 1.25rem;
}

.journal-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.article-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: var(--blog-card-padding);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--panel);
  box-shadow: var(--blog-shadow);
  color: var(--text);
  transition: border-color var(--ease-time), transform var(--ease-time);
}

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

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

.article-meta time,
.article-meta .read-time,
.article-meta .reading-time {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--panel);
}

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

.article-meta .tag {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--accent);
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--on-accent);
  font-size: var(--blog-small);
}

.article-card h2,
.article-card h3 {
  margin: 0;
  font-size: var(--blog-h3);
}

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

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

.article-card .article-summary {
  margin: 0;
  color: var(--muted);
  font-size: var(--blog-body);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.article-card .text-link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 0.25rem;
  color: var(--text);
  font-size: var(--blog-small);
  text-underline-offset: 0.2em;
}

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

.reading-wrap,
.article-hero,
.breadcrumbs.reading-wrap,
#related-posts,
#post-nav {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading) + var(--blog-inset) + var(--blog-inset));
  margin-inline: auto;
  padding-inline: var(--blog-inset);
  min-width: 0;
}

.article-hero {
  padding-block: 2.5rem 2rem;
  margin-bottom: 1.5rem;
}

.article-hero::before {
  right: 13%;
  bottom: 1rem;
  background: linear-gradient(120deg, var(--blog-tint-strong), var(--panel-2));
}

.article-hero h1 {
  position: relative;
  margin: 1.25rem 0;
  font-size: var(--blog-title);
  color: var(--text);
}

.article-hero .article-meta,
.article-hero .article-summary,
.article-hero .article-deck,
.article-hero > p {
  margin-left: 1.25rem;
}

.article-hero .article-summary,
.article-hero .article-deck,
.article-hero > p {
  max-width: 49rem;
  margin-block: 0;
  color: var(--muted);
  font-size: var(--blog-body);
  line-height: var(--blog-leading);
}

.reading-wrap.prose,
.reading-wrap .prose,
.reading-wrap[data-article-body],
.reading-wrap [data-article-body] {
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-body);
  line-height: var(--blog-leading);
  overflow-wrap: anywhere;
}

.reading-wrap .prose,
.reading-wrap [data-article-body] {
  max-width: none;
  width: 100%;
  margin-inline: 0;
}

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

.reading-wrap h2 {
  font-size: var(--blog-h2);
  margin: 2.5rem 0 1rem;
  padding-top: 0.25rem;
  scroll-margin-top: var(--anchor-offset);
}

.reading-wrap > h2:first-child,
.reading-wrap > section:first-child > h2:first-child,
.reading-wrap .prose > h2:first-child,
.reading-wrap [data-article-body] > h2:first-child {
  margin-top: 0;
}

.reading-wrap h2::before {
  content: "";
  display: inline-block;
  width: 1.1rem;
  height: 0.22rem;
  margin-right: 0.65rem;
  border-radius: var(--r-pill);
  background: var(--accent);
  vertical-align: middle;
}

.reading-wrap h3 {
  font-size: var(--blog-h3);
  margin: 1.75rem 0 0.75rem;
}

.reading-wrap li {
  margin-block: 0.4rem;
}

.reading-wrap a {
  color: var(--text);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.reading-wrap a:hover {
  text-decoration-thickness: 2px;
}

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

.reading-wrap figure {
  margin: 1.75rem 0;
}

.reading-wrap figcaption {
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: var(--blog-small);
}

.reading-wrap blockquote {
  margin: 1.75rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--accent);
  border-radius: var(--r-sm);
  background: var(--blog-tint);
  color: var(--text);
}

.reading-wrap blockquote p:last-child {
  margin-bottom: 0;
}

.reading-wrap code {
  padding: 0.12em 0.35em;
  border-radius: var(--r-tiny);
  background: var(--panel-2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
  overflow-wrap: anywhere;
}

.reading-wrap pre {
  position: relative;
  max-width: 100%;
  margin: 1.75rem 0;
  padding: 3rem 1.25rem 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--accent);
  border-radius: var(--r-sm);
  background: var(--accent-dark);
  color: var(--on-accent);
  line-height: 1.8;
}

.reading-wrap pre::before {
  content: "VPNAdd / 配置摘录";
  position: absolute;
  top: 0.65rem;
  left: 1.25rem;
  color: var(--on-accent);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
}

.reading-wrap pre code {
  padding: 0;
  background: none;
  color: inherit;
  white-space: pre;
  overflow-wrap: normal;
}

.reading-wrap .table-scroll {
  width: 100%;
  max-width: 100%;
  margin-block: 1.75rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
}

.reading-wrap table {
  width: 100%;
  margin-block: 1.75rem;
  border-collapse: collapse;
  background: var(--panel);
  color: var(--text);
  font-size: var(--blog-small);
  line-height: 1.8;
}

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

.reading-wrap th,
.reading-wrap td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.reading-wrap thead th {
  background: var(--accent);
  color: var(--on-accent);
  font-weight: var(--weight-medium);
}

.reading-wrap tbody th {
  font-weight: var(--weight-medium);
}

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

.reading-wrap tbody tr:hover {
  background: var(--panel-2);
}

.reading-wrap caption {
  padding: 0 0 0.75rem;
  color: var(--muted);
  text-align: left;
}

.reading-wrap .callout {
  --callout-ink: var(--accent);
  --callout-bg: var(--blog-tint);
  position: relative;
  margin: 1.75rem 0;
  padding: 1.25rem 1.25rem 1.25rem 3.5rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--callout-ink);
  border-radius: var(--r-sm);
  background: var(--callout-bg);
  color: var(--text);
}

.reading-wrap .callout::before {
  content: "i";
  position: absolute;
  top: 1.3rem;
  left: 1rem;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid var(--callout-ink);
  border-radius: var(--r-pill);
  color: var(--callout-ink);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
  line-height: 1.4rem;
  text-align: center;
}

.reading-wrap .callout.warning,
.reading-wrap .callout-warning,
.reading-wrap .callout--warning {
  --callout-ink: var(--warn);
  --callout-bg: var(--blog-warning-tint);
}

.reading-wrap .callout.success,
.reading-wrap .callout-success,
.reading-wrap .callout--success {
  --callout-ink: var(--success);
  --callout-bg: var(--blog-success-tint);
}

.reading-wrap .callout-title {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: var(--weight-strong);
}

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

.stat-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-block: 1.75rem;
}

.stat-card {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--r-sm);
  background: var(--panel);
  color: var(--text);
}

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

.stat-num {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--blog-stat);
  font-weight: var(--weight-medium);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

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

.reading-wrap .check-list {
  margin: 1.75rem 0;
  padding: 0;
  list-style: none;
}

.reading-wrap .check-list li {
  padding: 1rem 1.25rem;
  margin-block: 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--panel);
  list-style: none;
}

.reading-wrap .verdict {
  margin: 1.75rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 4px solid var(--accent);
  border-radius: var(--r-sm);
  background: var(--panel-2);
  color: var(--text);
}

.reading-wrap .verdict strong:first-child {
  font-weight: var(--weight-strong);
}

.reading-wrap .verdict p:last-child {
  margin-bottom: 0;
}

.blog-index .promo-block,
.reading-wrap .promo-block,
.promo-block.reading-wrap {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-block: 2rem;
  border: 1px solid var(--accent);
  border-radius: var(--r-card);
  background: linear-gradient(125deg, var(--accent), var(--accent-dark));
  color: var(--on-accent);
  box-shadow: var(--blog-shadow);
}

.blog-index .promo-block,
.reading-wrap .promo-block {
  padding-inline: var(--blog-card-padding);
  margin-block: 2.5rem 1.5rem;
}

.promo-block.reading-wrap {
  margin-block: 2.5rem 1.5rem;
}

.blog-index .promo-block::before,
.reading-wrap .promo-block::before,
.promo-block.reading-wrap::before {
  content: "+";
  position: absolute;
  z-index: -1;
  right: 1.5rem;
  top: 0.5rem;
  color: var(--hi-12);
  font-family: var(--font-mono);
  font-size: var(--blog-list-title);
  line-height: 1;
}

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

.promo-block .promo-copy strong {
  color: var(--on-accent);
  font-size: var(--blog-h3);
  font-weight: var(--weight-medium);
}

.promo-block .promo-copy p {
  margin: 0.6rem 0 0;
  color: var(--on-accent);
  font-size: var(--blog-body);
  line-height: 1.8;
}

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

.promo-block .btn-primary {
  border: 1px solid var(--on-accent);
  border-radius: var(--r-pill);
  background: var(--on-accent);
  color: var(--accent);
  text-decoration: none;
}

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

.promo-block .btn-primary:hover {
  background: var(--panel-2);
  color: var(--accent-dark);
}

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

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

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

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

.related-card {
  padding: 1.25rem;
}

.related-card .article-meta {
  font-size: var(--blog-small);
}

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

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

.post-nav-card {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--ease-time), transform var(--ease-time);
}

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

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

.post-nav-label,
.post-nav-date {
  display: block;
  color: var(--muted);
  font-size: var(--blog-small);
  line-height: 1.8;
}

.post-nav-title {
  display: block;
  margin-block: 0.6rem;
  font-size: var(--blog-body);
  font-weight: var(--weight-medium);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.post-nav-date {
  font-family: var(--font-mono);
}

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

.float-cta {
  position: fixed;
  z-index: 40;
  right: max(1.25rem, env(safe-area-inset-right));
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  max-width: calc(100vw - 2.5rem);
  min-height: 3rem;
  padding: 0.8rem 1.3rem;
  border: 1px solid var(--accent);
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: var(--blog-shadow);
  font-family: var(--font-body);
  font-size: var(--blog-small);
  font-weight: var(--weight-medium);
  line-height: 1.5;
  text-decoration: none;
  transition: background var(--ease-time), transform var(--ease-time);
}

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

.float-cta:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

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

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

  .reading-wrap table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
  }

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

  .reading-wrap th,
  .reading-wrap td {
    min-width: 9rem;
  }
}

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

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

  .journal-hero {
    padding-block: 2rem;
  }

  .journal-hero::before {
    right: 10%;
  }

  .journal-hero h1,
  .article-hero h1 {
    font-size: min(2.4rem, var(--blog-title));
  }

  .journal-intro,
  .article-hero .article-meta,
  .article-hero .article-summary,
  .article-hero .article-deck,
  .article-hero > p {
    margin-left: 0;
  }

  .article-hero {
    padding-block: 2rem 1.5rem;
    margin-bottom: 1rem;
  }

  .article-hero::before {
    right: var(--blog-inset);
  }

  .article-card {
    padding: 1.25rem;
  }

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

  .reading-wrap h2 {
    margin-top: 2rem;
  }

  .float-cta {
    right: max(1rem, env(safe-area-inset-right));
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    min-height: 2.75rem;
    max-width: calc(100vw - 2rem);
    padding: 0.65rem 1.1rem;
  }

  .promo-block .journal-actions {
    width: 100%;
  }

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

@media (prefers-reduced-motion: reduce) {
  .journal-skip,
  .journal-filters button,
  .article-card,
  .post-nav-card,
  .float-cta {
    transition: none;
    animation: none;
  }

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