.blog-page,
body:has(.article-hero) {
  --blog-reading: 56rem;
  --blog-gutter: 1.5rem;
  --blog-body-size: 1rem;
  --blog-h1-size: 2.6rem;
  --blog-h2-size: 1.6rem;
  --blog-h3-size: 1.3rem;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-body);
}

.blog-page *,
body:has(.article-hero) main * {
  box-sizing: border-box;
}

.blog-page h1,
.blog-page h2,
.blog-page h3,
.article-hero h1,
.reading-wrap h1,
.reading-wrap h2,
.reading-wrap h3,
#related-posts h2,
#related-posts h3 {
  display: block;
  text-wrap: pretty;
  letter-spacing: -0.015em;
  overflow-wrap: break-word;
  font-family: var(--font-display);
}

.blog-page .blog-sr-only {
  text-wrap: nowrap;
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.blog-skip {
  position: fixed;
  inset-block-start: 1rem;
  inset-inline-start: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: var(--bg-panel);
  background: var(--accent-dark);
  border-radius: var(--r-sm);
  transform: translateY(-200%);
}

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

.blog-page a:focus-visible,
.blog-page button:focus-visible,
.reading-wrap a:focus-visible,
.float-cta:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.breadcrumbs {
  margin-top: 1.5rem;
  padding-top: 0.25rem;
  padding-bottom: 1rem;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.65rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.breadcrumbs li {
  min-width: 0;
  overflow-wrap: anywhere;
}

.breadcrumbs li + li::before {
  content: "›";
  margin-inline-end: 0.65rem;
  color: var(--text-muted);
}

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

.blog-hero {
  position: relative;
  isolation: isolate;
  padding-block: 2.5rem 3rem;
}

.blog-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0.75rem 8% 1.75rem 36%;
  border-radius: var(--r-xl);
  background: linear-gradient(125deg, var(--accent-wash), var(--violet-soft));
}

.blog-hero h1 {
  max-width: 20ch;
  margin: 0.75rem 0 1rem;
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.25;
  font-weight: 900;
  color: var(--accent-dark);
}

.blog-hero-summary {
  max-width: 44rem;
  margin: 0 0 0 1rem;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-muted);
}

.blog-library {
  padding-block: 0.5rem 3rem;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.blog-filters button {
  min-height: 44px;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-panel);
  color: var(--text-muted);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color var(--ease-ui), background var(--ease-ui), color var(--ease-ui);
}

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

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

.blog-status {
  min-height: 1.8em;
  margin: 1rem 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-muted);
}

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

.article-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: var(--bg-panel);
  box-shadow: var(--panel-shadow);
  transition: border-color var(--ease-ui), transform var(--ease-ui);
}

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

.article-art {
  padding: 1.5rem 2rem;
  background: linear-gradient(130deg, var(--violet-soft), var(--bg-panel));
}

.mini-interface {
  max-width: 24rem;
  padding: 1.1rem 1.25rem;
  margin-inline: auto;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--edge);
  border-radius: var(--r-md);
  box-shadow: var(--panel-shadow);
}

.mini-interface-caption {
  display: block;
  margin-bottom: 0.7rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.75rem;
}

.mini-interface strong {
  color: var(--accent-dark);
}

.mini-interface p {
  margin: 0.5rem 0 0;
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.8;
}

.article-content {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.5rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem 0.75rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

.article-meta .tag {
  color: var(--accent-dark);
  background: var(--accent-wash);
  border-radius: var(--r-pill);
  padding: 0.3rem 0.65rem;
}

.article-meta .tag-stream {
  color: var(--text);
  background: var(--coral-soft);
}

.article-meta .tag-ai {
  color: var(--text);
  background: var(--violet-soft);
}

.article-content h3,
.related-card h3 {
  margin: 1rem 0 0.75rem;
  font-size: 1.2rem;
  line-height: 1.65;
}

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

.article-content h3 a:hover,
.related-card h3 a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.article-content > p,
.related-card > p {
  margin: 0 0 1.25rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-muted);
}

.article-link {
  display: inline-block;
  margin-top: auto;
  padding-block: 0.4rem;
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
  text-underline-offset: 0.25em;
}

.article-link:hover {
  text-decoration: underline;
}

.blog-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--bg-panel);
}

.blog-empty h3 {
  margin-top: 0;
  font-size: 1.2rem;
}

.blog-empty p {
  margin-bottom: 0;
  color: var(--text-muted);
  line-height: 1.8;
}

.blog-start {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 2rem 3rem;
}

.blog-start h2 {
  margin: 0 0 0.65rem;
  font-size: 1.5rem;
  line-height: 1.6;
}

.blog-start p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

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

body:has(.article-hero) .breadcrumbs,
.article-hero,
.reading-wrap,
body:has(.article-hero) > main > .promo-block,
body:has(.article-hero) > main > #post-nav,
body:has(.article-hero) > main > #related-posts {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading, 56rem) + 2 * var(--blog-gutter, 1.5rem));
  margin-inline: auto;
  padding-inline: var(--blog-gutter, 1.5rem);
}

.reading-wrap {
  font-size: var(--blog-body-size, 1rem);
  line-height: 1.9;
  padding-block: 0 1.25rem;
  overflow-wrap: break-word;
  counter-reset: blog-section;
}

.article-hero {
  position: relative;
  isolation: isolate;
  padding-block: 2rem 1.75rem;
  margin-block: 0 1.25rem;
}

.article-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0.5rem 1.5rem 1.25rem 30%;
  background: linear-gradient(125deg, var(--accent-wash), var(--violet-soft));
  border-radius: var(--r-xl);
}

.article-hero h1 {
  display: block;
  margin: 1rem 0 1.25rem;
  max-width: none;
  color: var(--text);
  font-size: clamp(1.85rem, 4.2vw, var(--blog-h1-size, 2.6rem));
  line-height: 1.4;
  font-weight: 900;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.article-hero .article-meta,
.article-hero .article-summary,
.article-hero .article-deck,
.article-hero > p:not(.eyebrow) {
  margin-inline-start: 0.75rem;
  margin-inline-end: 0;
}

.article-hero .article-meta {
  justify-content: flex-start;
}

.article-hero .article-meta time,
.article-hero .read-time,
.article-hero .reading-time {
  display: inline-block;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-size: 0.8rem;
}

.article-hero .article-summary,
.article-hero .article-deck,
.article-hero > p:not(.eyebrow) {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-muted);
}

.reading-wrap .prose {
  width: 100%;
  max-width: none;
  padding-inline: 0;
  margin-inline: 0;
  font-size: 1rem;
  line-height: 1.9;
}

.reading-wrap p,
.reading-wrap li {
  font-size: 1rem;
  line-height: 1.9;
}

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

.reading-wrap h2 {
  counter-increment: blog-section;
  display: block;
  margin: 2.25rem 0 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: var(--blog-h2-size, 1.6rem);
  line-height: 1.6;
  text-wrap: pretty;
}

.reading-wrap > h2:first-child,
.reading-wrap .prose > h2:first-child,
.reading-wrap section:first-child > h2:first-child {
  margin-top: 0.5rem;
}

.reading-wrap h2::before {
  content: counter(blog-section, decimal-leading-zero);
  display: inline-block;
  margin-inline-end: 0.65rem;
  padding: 0.1rem 0.45rem;
  vertical-align: 0.12em;
  color: var(--accent-dark);
  background: var(--accent-wash);
  border-radius: var(--r-xs);
  font: 700 0.75rem/1.6 var(--font-mono);
}

.reading-wrap h3 {
  display: block;
  margin: 1.75rem 0 0.75rem;
  font-size: var(--blog-h3-size, 1.3rem);
  line-height: 1.65;
  text-wrap: pretty;
}

.reading-wrap ul,
.reading-wrap ol {
  padding-inline-start: 1.5rem;
  margin-block: 0.75rem 1.5rem;
}

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

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

.reading-wrap code {
  padding: 0.1rem 0.3rem;
  border-radius: var(--r-xs);
  color: var(--accent-dark);
  background: var(--accent-wash);
  font-family: var(--font-mono);
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.reading-wrap pre {
  position: relative;
  max-width: 100%;
  overflow-x: auto;
  padding: 3rem 1.25rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: var(--r-md);
  color: var(--bg-panel);
  background: var(--text);
  line-height: 1.8;
  box-shadow: var(--panel-shadow);
}

.reading-wrap pre::before {
  content: "SESSION / 会话检查";
  position: absolute;
  top: 0.75rem;
  left: 1.25rem;
  color: var(--bg-panel2);
  font: 0.7rem/1.6 var(--font-mono);
  letter-spacing: 0.04em;
}

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

.reading-wrap blockquote,
.callout,
.verdict {
  position: relative;
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border);
  border-inline-start: 4px solid var(--accent);
  border-radius: var(--r-sm);
  color: var(--text);
  background: var(--accent-wash);
  line-height: 1.9;
}

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

.callout::before {
  content: "i";
  position: absolute;
  top: 1.25rem;
  left: 1rem;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: var(--r-round);
  color: var(--bg-panel);
  background: var(--accent-dark);
  font: 700 0.9rem/1.65rem var(--font-body);
  text-align: center;
}

.callout.warning,
.callout--warning {
  background: color-mix(in srgb, var(--warn) 10%, var(--bg-panel));
  border-inline-start-color: var(--warn);
}

.callout.warning::before,
.callout--warning::before {
  content: "!";
  color: var(--text);
  background: color-mix(in srgb, var(--warn) 45%, var(--bg-panel));
}

.callout.success,
.callout--success {
  background: color-mix(in srgb, var(--success) 9%, var(--bg-panel));
  border-inline-start-color: var(--success);
}

.callout.success::before,
.callout--success::before {
  background: var(--accent-dark);
}

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

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

.reading-wrap .table-scroll {
  max-width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}

.reading-wrap table {
  width: 100%;
  border-collapse: collapse;
  margin-block: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.8;
}

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

.reading-wrap caption {
  padding: 0.85rem 1rem;
  color: var(--text-muted);
  background: var(--bg-panel);
  text-align: start;
  font-size: 0.875rem;
}

.reading-wrap th,
.reading-wrap td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: start;
  vertical-align: top;
}

.reading-wrap thead th {
  color: var(--bg-panel);
  background: var(--accent-dark);
  font-weight: 700;
}

.reading-wrap tbody tr:nth-child(odd) {
  background: var(--bg-panel);
}

.reading-wrap tbody tr:nth-child(even) {
  background: var(--bg-panel2);
}

.reading-wrap tbody tr:hover {
  background: var(--accent-wash);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

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

.stat-card:nth-child(even) {
  border-top-color: var(--accent-dark);
  background: var(--bg-panel2);
}

.stat-num {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent-dark);
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.stat-label {
  display: block;
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.8;
}

.reading-wrap .check-list {
  display: grid;
  gap: 0.75rem;
  padding: 0;
  margin: 1.5rem 0;
  list-style: none;
}

.reading-wrap .check-list li {
  padding: 1rem 1.25rem;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg-panel);
  list-style: none;
}

.promo-block {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem 1.5rem;
  margin-block: 1.5rem 2rem;
  border: 1px solid var(--accent);
  border-radius: var(--r-xl);
  color: var(--bg-panel);
  background: linear-gradient(115deg, var(--accent-dark), var(--text));
  overflow: hidden;
}

.promo-block::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 0 0 65%;
  opacity: 0.18;
  background-image: radial-gradient(var(--coral) 1px, var(--clear) 1px);
  background-size: 10px 10px;
}

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

.promo-brand {
  color: var(--bg-panel);
  font: 900 1.6rem/1.4 var(--font-display);
}

.promo-copy p {
  margin: 0.6rem 0 0;
  color: var(--bg-panel);
  font-size: 1rem;
  line-height: 1.8;
}

.promo-block .btn-primary {
  flex: 0 0 auto;
  white-space: nowrap;
  background: var(--bg-panel);
  color: var(--accent-dark);
  border-color: var(--bg-panel);
}

.promo-block .btn-primary:hover {
  color: var(--text);
  background: var(--bg-panel2);
  border-color: var(--bg-panel2);
}

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

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

#related-posts > h2 {
  display: block;
  margin: 0 0 1rem;
  font-size: 1.5rem;
  line-height: 1.6;
  text-wrap: pretty;
}

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

.related-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-panel);
  transition: border-color var(--ease-ui), transform var(--ease-ui);
}

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

.related-card h3 {
  font-size: 1.05rem;
}

.related-card > p {
  font-size: 0.9rem;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-block: 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;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-panel);
  line-height: 1.8;
  transition: border-color var(--ease-ui), transform var(--ease-ui);
}

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

.post-nav-label {
  color: var(--accent-dark);
  font-size: 0.875rem;
  font-weight: 700;
}

.post-nav-date {
  color: var(--text-muted);
  font-size: 0.8rem;
}

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

.float-cta {
  position: fixed;
  z-index: 50;
  right: max(1.25rem, env(safe-area-inset-right));
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 48px;
  max-width: calc(100vw - 2.5rem);
  padding: 0.8rem 1.25rem;
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-pill);
  color: var(--bg-panel);
  background: var(--accent-dark);
  box-shadow: var(--panel-shadow);
  font: 700 0.95rem/1.5 var(--font-body);
  text-decoration: none;
  white-space: nowrap;
}

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

.float-cta:hover {
  background: var(--text);
  border-color: var(--text);
}

@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;
  }
}

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

  .blog-page,
  body:has(.article-hero) {
    --blog-gutter: 1.5rem;
  }

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

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

  .blog-hero::before {
    inset: 0.5rem 1.5rem 1rem 24%;
  }

  .blog-hero-summary {
    margin-inline-start: 0;
  }

  .blog-hero h1 {
    font-size: 2rem;
  }

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

  .article-hero::before {
    inset-inline-start: 22%;
  }

  .article-hero h1 {
    font-size: 1.85rem;
    line-height: 1.45;
  }

  .article-hero .article-meta,
  .article-hero .article-summary,
  .article-hero .article-deck,
  .article-hero > p:not(.eyebrow) {
    margin-inline-start: 0;
  }

  .article-art {
    padding: 1.25rem;
  }

  .article-content {
    padding: 1.25rem;
  }

  .reading-wrap h2 {
    font-size: 1.4rem;
  }

  .reading-wrap h3 {
    font-size: 1.2rem;
  }

  #post-nav {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

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

  .promo-block {
    align-items: flex-start;
  }

  .promo-block .btn {
    min-height: 48px;
  }

  .float-cta {
    right: 1rem;
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    max-width: calc(100vw - 2rem);
    padding: 0.7rem 1rem;
  }

  body:has(.float-cta) {
    padding-bottom: 5.5rem;
  }
}

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

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