/* 分流规则簿：文章与目录共享一条阅读基线。 */
.blog-index,
.blog-article {
  color: var(--text);
}

.blog-breadcrumb,
.blog-index-hero,
.blog-catalog,
.blog-index-promo,
.article-breadcrumb,
.article-hero,
.reading-wrap,
.article-tail {
  box-sizing: border-box;
  width: min(100%, calc(56rem + 3rem));
  max-width: calc(56rem + 3rem);
  padding-inline: 1.5rem;
  margin-inline: auto;
}

.blog-breadcrumb,
.article-breadcrumb,
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .65rem;
  margin-top: 1.5rem;
  padding-top: .25rem;
  color: var(--text-muted);
  font-size: .875rem;
}

.blog-breadcrumb a,
.article-breadcrumb a,
.breadcrumb a {
  color: var(--text-2);
  text-decoration: none;
}

.blog-breadcrumb a:hover,
.article-breadcrumb a:hover,
.breadcrumb a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

.blog-index-hero,
.article-hero {
  position: relative;
  text-align: center;
  background: transparent;
  border: 0;
  padding-block: 4rem 3.25rem;
}

.blog-index-hero::after,
.article-hero::after {
  content: "";
  display: block;
  width: 3.5rem;
  height: .25rem;
  margin: 1.6rem auto 0;
  border-radius: var(--r-pill);
  background: var(--accent);
}

.blog-kicker,
.article-kicker,
.hero-kicker {
  display: block;
  color: var(--accent-dark);
  font: 700 .75rem/1.5 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.blog-index-hero h1,
.article-hero h1 {
  text-wrap: pretty;
  letter-spacing: -.015em;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 800;
}

.blog-index-hero h1 {
  max-width: 100%;
  margin: .95rem 0 1rem;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.25;
}

.blog-index-hero p,
.article-hero > p,
.article-hero .article-deck {
  max-width: 44rem;
  margin: 0 auto;
  color: var(--text-2);
  font-size: 1.0625rem;
  line-height: 1.85;
}

.article-hero {
  padding-block: 3.5rem 2rem;
}

.article-hero h1 {
  margin: 1rem auto 1.1rem;
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.33;
}

.article-hero::after {
  margin-block: 1.4rem;
}

.article-hero .article-meta,
.article-hero .hero-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: .45rem .7rem;
  width: fit-content;
  max-width: 100%;
  margin: 1.1rem auto 0;
  text-align: left;
}

.article-hero .article-meta > *,
.article-hero .hero-meta > * {
  display: inline-block;
  padding: .3rem .7rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  color: var(--text-2);
  font-size: .8rem;
  line-height: 1.5;
}

.article-hero .article-meta .article-tag,
.article-hero .hero-meta .article-tag {
  border-color: var(--text);
  background: var(--text);
  color: var(--panel);
}

.blog-catalog {
  padding-bottom: 4rem;
}

.catalog-heading,
#related-posts > h2 {
  margin: 0 0 1.25rem;
  font-size: 1.35rem;
  letter-spacing: -.01em;
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

.tag-filters button {
  cursor: pointer;
  padding: .55rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--panel);
  color: var(--text-2);
  font: 600 .875rem/1.4 var(--font-body);
  transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
}

.tag-filters button:hover {
  border-color: var(--accent-dark);
  transform: translateY(-2px);
}

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

.blog-status {
  margin: 1.5rem 0 1rem;
  color: var(--text-muted);
  font-size: .875rem;
}

.article-list {
  display: grid;
  gap: 1rem;
}

.article-card,
.related-card,
.post-nav-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.article-card {
  padding: clamp(1.3rem, 3vw, 2rem);
}

.article-card:hover,
.related-card:hover,
.post-nav-card:hover {
  border-color: var(--accent-dark);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.article-card .article-meta {
  display: flex;
  align-items: center;
  gap: .85rem;
  color: var(--text-muted);
  font: .8rem/1.5 var(--font-mono);
}

.article-tag {
  display: inline-block;
  padding: .25rem .65rem;
  border-radius: var(--r-pill);
  background: var(--accent-light);
  color: var(--text);
  font: 700 .78rem/1.5 var(--font-body);
}

.article-card h3 {
  margin: .85rem 0 .55rem;
  font-size: clamp(1.15rem, 2.4vw, 1.3rem);
  line-height: 1.5;
  letter-spacing: -.01em;
  text-wrap: pretty;
}

.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 1rem;
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.8;
}

.article-read {
  color: var(--text);
  font-size: .875rem;
  font-weight: 700;
  text-decoration-color: var(--accent);
  text-underline-offset: .3em;
}

.article-read::after {
  content: " →";
}

.reading-wrap {
  /* 覆盖基础样式的窄阅读列，与刊头、面包屑使用同一盒宽和内衬。 */
  max-width: calc(56rem + 3rem);
  width: min(100%, calc(56rem + 3rem));
  padding-inline: 1.5rem;
  margin-inline: auto;
  padding-block: 0 1rem;
}

.reading-wrap .prose,
.reading-wrap.prose,
.article-body,
.prose {
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.9;
  overflow-wrap: break-word;
}

.reading-wrap h2,
.article-body h2,
.prose h2 {
  margin: 2.6rem 0 1rem;
  color: var(--text);
  font-size: clamp(1.3rem, 2.7vw, 1.6rem);
  line-height: 1.4;
  letter-spacing: -.01em;
  text-wrap: pretty;
}

.reading-wrap {
  counter-reset: article-section;
}

.reading-wrap h2::before {
  counter-increment: article-section;
  content: counter(article-section, decimal-leading-zero) " / ";
  color: var(--accent-dark);
  font: 700 .8rem/1 var(--font-mono);
  letter-spacing: 0;
}

.reading-wrap h3,
.article-body h3,
.prose h3 {
  margin: 1.8rem 0 .7rem;
  color: var(--text);
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  line-height: 1.5;
  text-wrap: pretty;
}

.reading-wrap p,
.reading-wrap ul,
.reading-wrap ol,
.reading-wrap blockquote {
  margin-block: 0 1.35rem;
}

.reading-wrap li {
  margin-block: .4rem;
}

.reading-wrap a {
  color: var(--accent-dark);
  text-underline-offset: .2em;
}

.reading-wrap blockquote {
  margin-inline: 0;
  padding: 1rem 1.35rem;
  border-left: .25rem solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--panel-2);
  color: var(--text);
}

.reading-wrap .table-scroll,
.reading-wrap .data-table {
  max-width: 100%;
  margin-block: 1.5rem;
  overflow-x: auto;
}

.reading-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  line-height: 1.6;
}

.reading-wrap th,
.reading-wrap td {
  padding: .8rem 1rem;
  border: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

.reading-wrap thead th {
  background: var(--text);
  color: var(--panel);
}

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

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

.reading-wrap pre {
  position: relative;
  max-width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0;
  padding: 2.4rem 1.25rem 1.25rem;
  border-radius: var(--r-lg);
  background: var(--text);
  color: var(--panel);
  font: .875rem/1.7 var(--font-mono);
  tab-size: 2;
}

.reading-wrap pre::before {
  content: "●  ●  ●";
  position: absolute;
  top: .8rem;
  left: 1.25rem;
  color: var(--accent);
  font-size: .7rem;
  letter-spacing: .3em;
}

.reading-wrap pre code {
  color: inherit;
  background: transparent;
  font: inherit;
}

.reading-wrap :not(pre) > code {
  padding: .12rem .35rem;
  border-radius: var(--r-sm);
  background: var(--panel-2);
  font-family: var(--font-mono);
  font-size: .88em;
}

.reading-wrap .callout {
  position: relative;
  margin: 1.5rem 0;
  padding: 1rem 1.25rem 1rem 3.3rem;
  border-left: .25rem solid var(--accent-dark);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--accent-light);
  color: var(--text);
}

.reading-wrap .callout::before {
  content: "i";
  position: absolute;
  top: 1.1rem;
  left: 1.15rem;
  display: grid;
  place-items: center;
  width: 1.35rem;
  height: 1.35rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  font: 700 .8rem/1 var(--font-mono);
}

.reading-wrap .callout.warning {
  border-left-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 10%, var(--panel));
}

.reading-wrap .callout.success {
  border-left-color: var(--success);
  background: color-mix(in srgb, var(--success) 10%, var(--panel));
}

.reading-wrap .stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr));
  gap: .85rem;
  margin: 1.5rem 0;
}

.reading-wrap .stat-card {
  position: relative;
  min-width: 0;
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--panel);
  overflow: hidden;
}

.reading-wrap .stat-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: .25rem;
  background: var(--accent);
}

.reading-wrap .stat-card:nth-child(even) {
  background: color-mix(in srgb, var(--apricot) 35%, var(--panel));
}

.reading-wrap .stat-card:nth-child(even)::before {
  background: var(--coral);
}

.reading-wrap .stat-num {
  display: block;
  color: var(--text);
  font: 800 clamp(1.35rem, 3vw, 1.9rem)/1.3 var(--font-display);
}

.reading-wrap .stat-label {
  display: block;
  margin-top: .35rem;
  color: var(--text-2);
  font-size: .875rem;
}

.reading-wrap .check-list {
  list-style: none;
  padding: .35rem;
  margin: 1.4rem 0;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel-2);
}

.reading-wrap .check-list li {
  list-style: none;
  margin: .35rem 0;
  padding: .7rem 1rem;
  border-radius: var(--r-md);
  background: var(--panel);
  color: var(--text);
}

.reading-wrap .verdict {
  margin: 1.5rem 0;
  padding: 1.1rem 1.4rem;
  border-left: .3rem solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--panel-2);
  color: var(--text);
}

.reading-wrap .verdict strong {
  color: var(--text);
}

.promo-block {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  overflow: hidden;
  margin-block: 2.5rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--text);
  border-radius: var(--r-xl);
  background: linear-gradient(135deg, var(--text), color-mix(in srgb, var(--text) 84%, var(--coral)));
  color: var(--panel);
}

.promo-block::before {
  content: "";
  position: absolute;
  top: -2rem;
  right: 15%;
  width: 6rem;
  height: 6rem;
  border: 1px solid var(--apricot);
  border-radius: var(--r-lg);
  opacity: .5;
  pointer-events: none;
}

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

.promo-block h2 {
  margin: .3rem 0 .5rem;
  color: var(--panel);
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  line-height: 1.35;
}

.promo-block h2::before {
  content: none;
}

.promo-block p {
  margin: 0;
  color: var(--panel);
  line-height: 1.7;
}

.promo-eyebrow {
  color: var(--apricot);
  font: 700 .75rem/1.4 var(--font-mono);
  letter-spacing: .08em;
}

.promo-block .btn-primary {
  flex-shrink: 0;
  border-color: var(--panel);
  background: var(--panel);
  color: var(--text);
}

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

.article-tail {
  padding-bottom: 3rem;
}

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

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .85rem;
}

.related-card,
.post-nav-card {
  display: block;
  padding: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.related-eyebrow {
  display: block;
  margin-bottom: .55rem;
  color: var(--text-muted);
  font: .75rem/1.5 var(--font-mono);
}

.related-card strong,
.post-nav-card strong {
  display: block;
  font-size: .95rem;
  line-height: 1.6;
  text-wrap: pretty;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .85rem;
  padding-top: 1.5rem;
  padding-bottom: 1rem;
}

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

.float-cta {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  max-width: calc(100vw - 2rem);
  padding: .8rem 1.2rem;
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-pill);
  background: var(--accent);
  box-shadow: var(--shadow-card);
  color: var(--text);
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
}

.float-cta svg {
  flex: none;
  width: 1.1rem;
  height: 1.1rem;
}

.float-cta:hover {
  transform: translateY(-3px);
}

@media (max-width: 860px) {
  .reading-wrap table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
  }
}

@media (max-width: 640px) {
  .blog-breadcrumb,
  .blog-index-hero,
  .blog-catalog,
  .blog-index-promo,
  .article-breadcrumb,
  .article-hero,
  .reading-wrap,
  .article-tail {
    padding-inline: 1.25rem;
  }

  .blog-index-hero,
  .article-hero {
    padding-block: 2.6rem 1.75rem;
  }

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

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

  .float-cta {
    right: .75rem;
    bottom: .75rem;
    padding: .7rem 1rem;
  }

  .blog-index {
    padding-bottom: 1rem;
  }
}

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