/* 阅读列与页头使用同一水平基线；所有色彩从全站令牌派生。 */
.blog-page {
  --blog-column: 56rem;
  --blog-gutter: clamp(1.5rem, 4vw, 2.5rem);
  --blog-ink: var(--text);
  --blog-soft-ink: var(--text-muted);
  --blog-paper: var(--surface);
  --blog-rule: var(--border);
  --blog-accent-tint: color-mix(in srgb, var(--accent) 9%, var(--bg-panel));
  --blog-card-shadow: 0 20px 52px color-mix(in srgb, var(--accent) 11%, transparent),
    inset 0 1px color-mix(in srgb, var(--surface) 95%, transparent);
  background: var(--bg);
  color: var(--blog-ink);
  font-family: var(--font-body);
}

.blog-page *,
.blog-page *::before,
.blog-page *::after {
  box-sizing: border-box;
}

.blog-page :is(a, button):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.blog-page :is(.blog-list-wrap, .blog-breadcrumb, .article-hero, .reading-wrap, #related-posts, #post-nav) {
  width: 100%;
  max-width: calc(var(--blog-column) + 2 * var(--blog-gutter));
  padding-inline: var(--blog-gutter);
  margin-inline: auto;
}

.blog-page .blog-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  padding-top: clamp(1.25rem, 3vw, 2rem);
  margin-bottom: 1.5rem;
  color: var(--blog-soft-ink);
  font-size: 0.875rem;
  line-height: 1.6;
}

.blog-breadcrumb a {
  color: var(--accent-dark);
  text-decoration: none;
}

.blog-breadcrumb a:hover {
  text-decoration: underline;
}

.blog-breadcrumb [aria-current="page"] {
  overflow-wrap: anywhere;
}

.blog-list-wrap > .blog-breadcrumb {
  padding-inline: 0;
}

.blog-list-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 3.5rem);
  border: 1px solid var(--blog-rule);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--bg-panel), var(--blog-accent-tint));
  box-shadow: var(--blog-card-shadow);
}

.blog-list-hero::before {
  position: absolute;
  top: 1rem;
  bottom: 1rem;
  left: 0.75rem;
  width: 0.3rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(var(--accent), var(--accent-dark));
  content: "";
}

.blog-eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.blog-list-hero h1 {
  max-width: 18ch;
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.blog-list-hero h1 .no-break {
  color: var(--accent);
}

.blog-list-hero > p:last-child {
  max-width: 38rem;
  margin: 0;
  color: var(--blog-soft-ink);
  font-size: 1.05rem;
  line-height: 1.8;
}

.blog-catalog {
  padding-block: clamp(2.5rem, 6vw, 4.5rem) 5rem;
}

.catalog-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.catalog-heading .blog-eyebrow {
  margin-bottom: 0.35rem;
}

.catalog-heading h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.4;
  text-wrap: pretty;
}

.catalog-count {
  margin: 0;
  color: var(--blog-soft-ink);
  font-size: 0.875rem;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1.75rem;
}

.blog-filter {
  padding: 0.6rem 1rem;
  border: 1px solid var(--blog-rule);
  border-radius: var(--radius-pill);
  background: var(--bg-panel);
  color: var(--blog-soft-ink);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.blog-filter:hover,
.blog-filter.is-active {
  border-color: var(--accent);
  background: var(--blog-accent-tint);
  color: var(--accent-dark);
}

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

.blog-article-card,
.related-card,
.post-nav-card {
  position: relative;
  min-width: 0;
  border: 1px solid var(--blog-rule);
  border-radius: var(--radius);
  background: var(--blog-paper);
  box-shadow: var(--blog-card-shadow);
  transition: border-color 200ms ease, transform 200ms ease, box-shadow 200ms ease;
}

.blog-article-card {
  display: flex;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 2rem);
}

.blog-article-card::before,
.related-card::before,
.post-nav-card::before {
  position: absolute;
  top: 0;
  right: 1rem;
  left: 1rem;
  height: 0.2rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: var(--accent);
  content: "";
  opacity: 0;
  transition: opacity 200ms ease;
}

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

.blog-article-card:hover::before,
.blog-article-card:focus-within::before,
.related-card:hover::before,
.related-card:focus-visible::before,
.post-nav-card:hover::before,
.post-nav-card:focus-visible::before {
  opacity: 1;
}

.blog-card-meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem;
}

.blog-card-meta time,
.article-meta time,
.article-readtime {
  padding: 0.28rem 0.7rem;
  border: 1px solid var(--blog-rule);
  border-radius: var(--radius-pill);
  color: var(--blog-soft-ink);
  font-size: 0.78rem;
  line-height: 1.5;
}

.blog-tag {
  display: inline-block;
  padding: 0.28rem 0.7rem;
  border-radius: var(--radius-pill);
  background: var(--accent-dark);
  color: var(--surface);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.5;
}

.blog-article-card h3 {
  margin: 1.15rem 0 0.65rem;
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

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

.blog-article-card > p,
.related-card p {
  margin: 0;
  color: var(--blog-soft-ink);
  font-size: 0.94rem;
  line-height: 1.8;
}

.blog-read-link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 1.25rem;
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

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

.blog-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  border: 1px dashed var(--blog-rule);
  border-radius: var(--radius);
  color: var(--blog-soft-ink);
  line-height: 1.8;
}

.blog-article-page .article-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.75rem, 4vw, 2.75rem) var(--blog-gutter);
  border: 1px solid var(--blog-rule);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--bg-panel), var(--blog-accent-tint));
  box-shadow: var(--blog-card-shadow);
}

.blog-article-page .article-hero::before {
  position: absolute;
  top: 1rem;
  bottom: 1rem;
  left: 0.7rem;
  width: 0.28rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(var(--accent), var(--accent-dark));
  content: "";
}

.blog-article-page .article-hero h1 {
  margin: 1.15rem 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.32;
  letter-spacing: -0.015em;
  overflow-wrap: break-word;
  text-wrap: pretty;
}

.blog-article-page .article-hero > p,
.blog-article-page .article-hero .article-summary {
  margin: 0;
  color: var(--blog-soft-ink);
  font-size: 1rem;
  line-height: 1.8;
}

.blog-article-page .reading-wrap {
  width: 100%;
  max-width: calc(var(--blog-column) + 2 * var(--blog-gutter));
  padding-inline: var(--blog-gutter);
  margin-inline: auto;
}

.blog-article-page .article-body {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  color: var(--blog-ink);
  font-size: 1rem;
  line-height: 1.9;
  overflow-wrap: break-word;
  counter-reset: blog-section;
}

.article-body h2 {
  position: relative;
  margin: 2.5rem 0 1rem;
  font-size: clamp(1.3rem, 2.8vw, 1.6rem);
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-wrap: pretty;
  counter-increment: blog-section;
}

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

.article-body h2::before {
  display: inline-block;
  min-width: 2.5em;
  margin-right: 0.55rem;
  padding: 0.06rem 0.35rem;
  border-radius: var(--radius-sm);
  background: var(--blog-accent-tint);
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: 0.55em;
  line-height: 1.7;
  text-align: center;
  vertical-align: 0.15em;
  content: counter(blog-section, decimal-leading-zero);
}

.article-body h3 {
  margin: 1.8rem 0 0.75rem;
  font-size: 1.3rem;
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body blockquote {
  margin-block: 0.85rem 1.3rem;
}

.article-body :is(ul, ol) {
  padding-left: 1.6rem;
}

.article-body li + li {
  margin-top: 0.4rem;
}

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

.article-body blockquote {
  margin-inline: 0;
  padding: 0.9rem 1.3rem;
  border-left: 0.25rem solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--bg-panel);
  color: var(--blog-soft-ink);
}

.article-body .table-scroll {
  max-width: 100%;
  margin-block: 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--blog-rule);
  border-radius: var(--radius);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  line-height: 1.65;
}

.article-body th,
.article-body td {
  padding: 0.8rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--blog-rule);
}

.article-body th {
  background: var(--text);
  color: var(--surface);
  font-weight: 700;
}

.article-body tbody tr:nth-child(even) {
  background: var(--bg-panel);
}

.article-body tbody tr:hover {
  background: var(--blog-accent-tint);
}

.article-body .table-group td {
  background: var(--bg-panel2);
  color: var(--accent-dark);
  font-weight: 700;
}

.article-body pre {
  position: relative;
  max-width: 100%;
  margin-block: 1.5rem;
  padding: 2.2rem 1.25rem 1.2rem;
  overflow-x: auto;
  border-radius: var(--radius);
  background: var(--text);
  color: var(--bg-panel);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
}

.article-body pre::before {
  position: absolute;
  top: 0.7rem;
  left: 1.25rem;
  color: var(--bgPanel2, var(--bg-panel2));
  font-size: 0.7rem;
  letter-spacing: 0.45em;
  content: "● ● ●";
}

.article-body pre code {
  padding: 0;
  background: none;
  color: inherit;
  font: inherit;
}

.article-body :not(pre) > code {
  padding: 0.12em 0.35em;
  border-radius: var(--radius-sm);
  background: var(--bg-panel2);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.article-body .callout {
  position: relative;
  margin-block: 1.5rem;
  padding: 1rem 1.25rem 1rem 3.3rem;
  border-left: 0.25rem solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--blog-accent-tint);
}

.article-body .callout::before {
  position: absolute;
  top: 1.1rem;
  left: 0.9rem;
  display: grid;
  width: 1.55rem;
  height: 1.55rem;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  content: "i";
}

.article-body .callout.warning,
.article-body .callout.is-warning {
  border-left-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 12%, var(--surface));
}

.article-body .callout.warning::before,
.article-body .callout.is-warning::before {
  background: var(--warn);
  color: var(--text);
  content: "!";
}

.article-body .callout.success,
.article-body .callout.is-success {
  border-left-color: var(--success);
  background: color-mix(in srgb, var(--success) 11%, var(--surface));
}

.article-body .callout.success::before,
.article-body .callout.is-success::before {
  background: var(--success);
  content: "✓";
}

.article-body .stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 0.85rem;
  margin-block: 1.5rem;
}

.article-body .stat-card {
  padding: 1.15rem;
  border: 1px solid var(--blog-rule);
  border-top: 0.2rem solid var(--accent);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.article-body .stat-card:nth-child(even) {
  border-top-color: var(--amber);
  background: color-mix(in srgb, var(--amber) 9%, var(--surface));
}

.article-body .stat-num {
  display: block;
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.8rem);
  font-weight: 700;
  line-height: 1.4;
}

.article-body .stat-card:nth-child(even) .stat-num {
  color: var(--text);
}

.article-body .stat-label {
  display: block;
  margin-top: 0.25rem;
  color: var(--blog-soft-ink);
  font-size: 0.86rem;
  line-height: 1.6;
}

.article-body .check-list {
  display: grid;
  gap: 0.6rem;
  margin-block: 1.5rem;
  padding: 0;
  list-style: none;
}

.article-body .check-list li {
  margin: 0;
  padding: 0.85rem 1rem;
  border: 1px solid var(--blog-rule);
  border-radius: var(--radius-sm);
  background: var(--blog-paper);
  list-style: none;
}

.article-body .verdict {
  margin-block: 1.5rem;
  padding: 1rem 1.3rem;
  border-left: 0.3rem solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--blog-accent-tint);
  line-height: 1.8;
}

.article-body .verdict strong {
  color: var(--accent-dark);
}

.blog-article-page .promo-block {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-block: 1rem 2rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  overflow: hidden;
  border: 1px solid var(--accent-dark);
  border-radius: var(--radius-lg);
  background: linear-gradient(125deg, var(--accent-dark), var(--accent));
  color: var(--surface);
}

.blog-article-page .promo-block::before {
  position: absolute;
  right: -2rem;
  bottom: -3rem;
  width: 11rem;
  height: 11rem;
  border: 1px solid color-mix(in srgb, var(--surface) 35%, transparent);
  border-radius: 50%;
  box-shadow: 0 0 0 1.3rem color-mix(in srgb, var(--surface) 8%, transparent),
    0 0 0 2.6rem color-mix(in srgb, var(--surface) 6%, transparent);
  content: "";
  pointer-events: none;
}

.blog-article-page .promo-block > * {
  position: relative;
}

.blog-article-page .promo-block h2 {
  margin: 0 0 0.45rem;
  color: var(--surface);
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  line-height: 1.4;
  text-wrap: pretty;
}

.blog-article-page .promo-block p {
  margin: 0;
  color: var(--surface);
  line-height: 1.75;
}

.blog-article-page .promo-block .btn {
  flex: none;
  border: 1px solid var(--surface);
  background: var(--surface);
  color: var(--accent-dark);
  text-decoration: none;
}

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

.blog-article-page #related-posts {
  padding-top: 1rem;
  padding-bottom: 0;
}

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

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

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.related-card {
  display: block;
  padding: 1.2rem;
  color: var(--blog-ink);
  text-decoration: none;
}

.related-card h3 {
  margin: 0.85rem 0 0.45rem;
  font-size: 1rem;
  line-height: 1.55;
  text-wrap: pretty;
}

.related-card p {
  font-size: 0.83rem;
  line-height: 1.65;
}

.blog-article-page #post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
}

.post-nav-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.15rem;
  color: var(--blog-ink);
  text-decoration: none;
}

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

.post-nav-hint {
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 700;
}

.post-nav-card strong {
  font-size: 0.94rem;
  line-height: 1.6;
}

@media (max-width: 860px) {
  .article-body table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
    white-space: nowrap;
  }
}

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

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

  .blog-page .blog-breadcrumb {
    margin-bottom: 1rem;
  }

  .blog-article-page .article-hero,
  .blog-list-hero {
    padding-inline: 1.5rem;
  }

  .blog-list-hero::before,
  .blog-article-page .article-hero::before {
    left: 0.45rem;
    width: 0.2rem;
  }

  .blog-article-page .promo-block {
    flex-direction: column;
    align-items: flex-start;
  }

  .catalog-heading {
    align-items: start;
    flex-direction: column;
  }
}

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

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