.blog-page {
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-text);
}

.blog-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: calc(var(--header-height) + 7rem);
  padding-bottom: 7rem;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(118deg, var(--color-accent-10), var(--color-transparent) 48%),
    linear-gradient(180deg, var(--color-bg-panel), var(--color-bg));
}

.blog-hero::before,
.blog-hero::after {
  position: absolute;
  z-index: -1;
  content: "";
  pointer-events: none;
}

.blog-hero::before {
  inset: 0;
  opacity: 0.42;
  background-image:
    linear-gradient(var(--color-accent-05) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-accent-05) 1px, var(--color-transparent) 1px);
  background-size: 4rem 4rem;
  mask-image: linear-gradient(to bottom, var(--color-blackout), var(--color-transparent));
}

.blog-hero::after {
  right: -8rem;
  bottom: -13rem;
  width: 34rem;
  height: 34rem;
  border: 1px solid var(--color-accent-24);
  border-radius: var(--radius-pill);
  box-shadow:
    0 0 0 4rem var(--color-accent-03),
    0 0 0 8rem var(--color-accent-03),
    var(--shadow-glow);
}

.blog-hero h1 {
  max-width: 15ch;
  margin: 1rem 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.blog-hero-summary {
  max-width: 43rem;
  margin: 0;
  color: var(--color-text-muted);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  line-height: 1.9;
}

.blog-index-section {
  padding: var(--section-space) 0;
}

.blog-index-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.blog-index-head h2 {
  margin: 0.75rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.1;
}

.blog-index-head .muted {
  max-width: 24rem;
  margin: 0;
  text-align: right;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2.25rem;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel-glass);
  box-shadow: var(--shadow-panel);
}

.blog-filter-button {
  min-height: 2.7rem;
  padding: 0.65rem 1.1rem;
  border: 1px solid var(--color-transparent);
  border-radius: var(--radius-pill);
  background: var(--color-transparent);
  color: var(--color-text-muted);
  font: 600 0.9rem/1 var(--font-body);
  cursor: pointer;
  transition:
    color 180ms var(--ease-smooth),
    border-color 180ms var(--ease-smooth),
    background-color 180ms var(--ease-smooth),
    box-shadow 180ms var(--ease-smooth);
}

.blog-filter-button:hover {
  border-color: var(--color-warn-35);
  color: var(--color-warn);
  background: var(--color-warn-10);
}

.blog-filter-button:focus-visible {
  outline: 2px solid var(--color-warn);
  outline-offset: 3px;
}

.blog-filter-button.is-active {
  border-color: var(--color-accent-48);
  color: var(--color-bg);
  background: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

.blog-card-list {
  display: grid;
  gap: 1px;
  border: 1px solid var(--color-border);
  background: var(--color-border);
  box-shadow: var(--shadow-panel);
}

.article-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(9rem, 0.28fr) minmax(0, 1fr) auto;
  gap: clamp(1.25rem, 3vw, 3rem);
  align-items: center;
  min-height: 13rem;
  padding: clamp(1.5rem, 4vw, 3rem);
  background:
    linear-gradient(110deg, var(--color-accent-03), var(--color-transparent) 48%),
    var(--color-bg-panel);
  transition:
    background-color 180ms var(--ease-smooth),
    transform 180ms var(--ease-smooth);
}

.article-card::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  content: "";
  background: var(--color-accent);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 180ms var(--ease-smooth);
}

.article-card:hover {
  z-index: 1;
  background-color: var(--color-bg-panel-2);
}

.article-card:hover::before {
  transform: scaleY(1);
}

.article-card-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.article-card-body {
  min-width: 0;
}

.article-card-body h3 {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  line-height: 1.35;
}

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

.article-card-body h3 a::after {
  position: absolute;
  inset: 0;
  content: "";
}

.article-card-body p {
  max-width: 52rem;
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.article-card-footer {
  position: relative;
  z-index: 2;
}

.article-read-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  white-space: nowrap;
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
}

.article-read-link:hover {
  color: var(--color-warn);
}

.article-read-arrow {
  font-family: var(--font-mono);
  transition: transform 180ms var(--ease-smooth);
}

.article-read-link:hover .article-read-arrow {
  transform: translateX(0.25rem);
}

.blog-empty,
.blog-script-notice {
  padding: 2rem;
  border: 1px dashed var(--color-border);
  color: var(--color-text-muted);
  text-align: center;
  background: var(--color-bg-soft);
}

.article-breadcrumb {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
}

.article-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  margin: 0;
  padding: 0;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  list-style: none;
}

.article-breadcrumb li:not(:last-child)::after {
  margin-left: 0.55rem;
  color: var(--color-border);
  content: "/";
}

.article-breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.article-breadcrumb a:hover {
  color: var(--color-warn);
}

.article-hero {
  padding: 4rem 0 5rem;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(125deg, var(--color-accent-08), var(--color-transparent) 55%),
    var(--color-bg);
}

.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.article-hero h1 {
  max-width: 18ch;
  margin: 1.4rem 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.article-hero .title-nowrap,
.prose .title-nowrap {
  white-space: normal;
}

.article-hero-summary {
  max-width: 48rem;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  line-height: 1.9;
}

.article-body {
  padding: clamp(4rem, 8vw, 8rem) 0;
}

.prose {
  color: var(--color-text);
  font-size: 1.05rem;
  line-height: 2;
}

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

.prose h2 {
  margin: 4.5rem 0 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.65rem);
  line-height: 1.25;
}

.prose h3 {
  margin: 2.75rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  line-height: 1.4;
}

.prose p,
.prose ul,
.prose ol {
  margin-top: 0;
  margin-bottom: 1.5rem;
}

.prose li + li {
  margin-top: 0.6rem;
}

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

.prose a:hover {
  color: var(--color-warn);
}

.prose code {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  padding: 0.1em 0.35em;
  color: var(--color-accent);
  background: var(--color-bg-panel);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose pre {
  overflow-x: auto;
  margin: 2rem 0;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-deep);
  box-shadow: var(--shadow-panel);
}

.prose pre code {
  border: 0;
  padding: 0;
  color: var(--color-text);
  background: var(--color-transparent);
}

.prose blockquote {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--color-accent);
  color: var(--color-text-muted);
  background: var(--color-accent-05);
}

.article-download-guide {
  position: relative;
  overflow: hidden;
  margin: 5rem 0 0;
  padding: clamp(2rem, 5vw, 3.5rem);
  border: 1px solid var(--color-accent-36);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(120deg, var(--color-accent-14), var(--color-transparent) 68%),
    var(--color-bg-panel);
  box-shadow: var(--shadow-glow);
  clip-path: polygon(0 0, calc(100% - 2rem) 0, 100% 2rem, 100% 100%, 0 100%);
}

.article-download-guide::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 2rem;
  height: 2rem;
  content: "";
  background: var(--color-accent-24);
}

.article-download-guide h2 {
  margin: 0.8rem 0 1rem;
  padding: 0;
  border: 0;
}

.article-download-guide p {
  max-width: 42rem;
}

.article-download-guide .btn {
  margin-top: 0.75rem;
}

#related-posts {
  margin-top: 5rem;
  padding-top: 4rem;
  border-top: 1px solid var(--color-border);
}

#related-posts > h2 {
  margin: 0.75rem 0 2rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.7rem);
}

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

.related-post-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 19rem;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  background:
    linear-gradient(145deg, var(--color-accent-05), var(--color-transparent)),
    var(--color-bg-panel);
  box-shadow: var(--shadow-panel);
  transition:
    border-color 180ms var(--ease-smooth),
    transform 180ms var(--ease-smooth),
    background-color 180ms var(--ease-smooth);
}

.related-post-card:hover {
  border-color: var(--color-warn);
  background-color: var(--color-bg-panel-2);
  transform: translateY(-0.3rem);
}

.related-post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.related-post-card h3 {
  margin: 1.25rem 0 0.8rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.5;
}

.related-post-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.related-post-action {
  margin-top: auto;
  padding-top: 1.5rem;
  color: var(--color-accent);
  font-weight: 700;
}

.related-post-card:hover .related-post-action {
  color: var(--color-warn);
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 3rem;
}

.post-nav-card {
  display: flex;
  flex-direction: column;
  min-height: 10rem;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  background: var(--color-bg-panel);
  transition:
    border-color 180ms var(--ease-smooth),
    background-color 180ms var(--ease-smooth);
}

.post-nav-card:hover {
  border-color: var(--color-warn);
  background-color: var(--color-bg-panel-2);
}

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

.post-nav-label {
  margin-bottom: 0.8rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.post-nav-card:hover .post-nav-label {
  color: var(--color-warn);
}

.post-nav-card strong {
  line-height: 1.55;
}

.post-nav-meta {
  margin-top: auto;
  padding-top: 1rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

@media (max-width: 900px) {
  .article-card {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .article-card-meta {
    flex-direction: row;
    align-items: center;
  }

  .article-card-footer {
    justify-self: start;
  }

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

  .related-post-card {
    min-height: auto;
  }
}

@media (max-width: 680px) {
  /* 博客列表 hero 标题移动端必须能换行(2026-08-17 小学生审计:nowrap 单行 44px 标题被 overflow:hidden 裁掉末字,五语言同病) */
  .blog-hero .title-nowrap {
    white-space: normal;
  }

  .blog-hero {
    padding-top: calc(var(--header-height) + 4rem);
    padding-bottom: 4rem;
  }

  .blog-hero::after {
    right: -16rem;
  }

  .blog-index-head {
    display: block;
  }

  .blog-index-head .muted {
    margin-top: 1rem;
    text-align: left;
  }

  .blog-filter {
    border-radius: var(--radius-sm);
  }

  .blog-filter-button {
    flex: 1 1 auto;
  }

  .article-card {
    min-height: auto;
  }

  .article-hero {
    padding: 3rem 0 4rem;
  }

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

  .post-nav-next {
    grid-column: 1;
    text-align: left;
  }
}

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

  .related-post-card:hover,
  .article-read-link:hover .article-read-arrow {
    transform: none;
  }
}