/* 博客页与文章页共享同一条居中的阅读列。 */
.blog-page,
.article-page {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

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

.blog-column,
.blog-crumbs,
.article-hero,
.reading-wrap,
.promo-block,
#related-posts,
#post-nav {
  width: min(100%, calc(56rem + 2 * max(1.5rem, var(--gutter))));
  max-width: calc(56rem + 2 * max(1.5rem, var(--gutter)));
  margin-inline: auto;
  padding-inline: max(1.5rem, var(--gutter));
}

.blog-column .blog-crumbs,
.blog-column .blog-list-hero,
.blog-column .blog-directory {
  width: 100%;
}

.blog-crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .6rem;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  color: var(--text-muted);
  font-size: .85rem;
  line-height: 1.6;
}

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

.blog-crumbs a:hover,
.blog-crumbs a:focus-visible {
  text-decoration: underline;
}

.blog-kicker {
  margin: 0 0 .75rem;
  color: var(--accent-dark);
  font-size: .85rem;
  font-weight: 800;
  letter-spacing: .04em;
}

.blog-list-hero,
.article-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: linear-gradient(130deg, var(--berry-50), var(--bg-panel) 68%);
  box-shadow: inset 0 1px var(--hi), 0 16px 48px var(--shadow-06);
}

/* 色条不越出卡片边界，圆头避开卡片圆角。 */
.blog-list-hero::before,
.article-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 1rem;
  bottom: 1rem;
  left: .55rem;
  width: .32rem;
  border-radius: var(--r-pill);
  background: linear-gradient(var(--accent), var(--lilac));
}

.blog-list-hero {
  padding: clamp(2rem, 5vw, 3.5rem) max(1.5rem, var(--gutter));
}

.blog-list-hero h1 {
  margin: 0 0 1rem;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
  text-wrap: pretty;
}

.blog-list-hero > p:last-child {
  max-width: 39rem;
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.blog-directory {
  padding-block: clamp(2.5rem, 6vw, 4rem) 5rem;
}

.directory-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.directory-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3vw, 2rem);
  line-height: 1.3;
  text-wrap: pretty;
  letter-spacing: -.02em;
}

.result-count {
  margin: 0 0 .2rem;
  color: var(--text-muted);
  font-size: .85rem;
  white-space: nowrap;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: 1.75rem;
}

.blog-filters button {
  min-height: 2.65rem;
  padding: .5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-panel);
  color: var(--text);
  font: 600 .9rem/1.4 var(--font-body);
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

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

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

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

.blog-entry {
  position: relative;
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--bg-panel);
  box-shadow: inset 0 1px var(--hi-soft);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}

.blog-entry:hover,
.blog-entry:focus-within {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 16px 32px var(--shadow-10);
}

.blog-entry-meta,
.article-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: .55rem;
}

.blog-entry-meta time,
.article-meta time,
.article-meta .readtime {
  padding: .22rem .65rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  color: var(--text-muted);
  background: var(--bg-panel);
  font: 500 .78rem/1.6 var(--font-mono);
}

.blog-entry-tag,
.article-meta .tag {
  display: inline-block;
  padding: .25rem .7rem;
  border-radius: var(--r-pill);
  background: var(--accent-dark);
  color: var(--bg-panel);
  font-size: .78rem;
  font-weight: 700;
  line-height: 1.6;
}

.blog-entry h3 {
  margin: 1rem 0 .5rem;
  font-size: clamp(1.12rem, 2.5vw, 1.3rem);
  line-height: 1.5;
  letter-spacing: -.01em;
  text-wrap: pretty;
}

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

.blog-entry h3 a:hover,
.blog-entry h3 a:focus-visible {
  color: var(--accent-dark);
  text-decoration: underline;
}

.blog-entry > p {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: .96rem;
  line-height: 1.8;
}

.blog-entry-read {
  color: var(--accent-dark);
  font-size: .88rem;
  font-weight: 700;
  text-underline-offset: .2em;
}

.blog-empty {
  padding: 2rem;
  border: 1px dashed var(--border);
  border-radius: var(--r-card);
  background: var(--bg-panel);
  color: var(--text-muted);
  line-height: 1.8;
}

/* 文章 hero 与正文的盒宽、内衬始终一致。 */
.article-hero {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.article-hero .article-meta {
  margin-bottom: 1.25rem;
}

.article-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.02em;
  text-wrap: pretty;
  overflow-wrap: break-word;
}

.article-hero > p,
.article-hero .article-summary {
  max-width: 48rem;
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.reading-wrap {
  margin-top: 1.5rem;
  font-size: 1rem;
  line-height: 1.9;
  overflow-wrap: break-word;
}

.reading-wrap h2,
.reading-wrap h3 {
  color: var(--text);
  font-family: var(--font-display);
  letter-spacing: -.01em;
  text-wrap: pretty;
}

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

.reading-wrap h2 {
  margin: 2.8rem 0 1rem;
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  line-height: 1.45;
  counter-increment: article-section;
}

.reading-wrap h2:first-child {
  margin-top: 1.5rem;
}

.reading-wrap h2::before {
  content: counter(article-section, decimal-leading-zero);
  display: inline-block;
  margin-right: .7rem;
  color: var(--accent-dark);
  font: 700 .85rem/1.5 var(--font-mono);
  vertical-align: .12em;
}

.reading-wrap h3 {
  margin: 2rem 0 .7rem;
  font-size: clamp(1.12rem, 2.5vw, 1.3rem);
  line-height: 1.5;
}

.reading-wrap p,
.reading-wrap ul,
.reading-wrap ol,
.reading-wrap blockquote {
  margin: 0 0 1.3rem;
}

.reading-wrap li {
  margin-bottom: .45rem;
}

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

.reading-wrap blockquote {
  padding: 1rem 1.4rem;
  border-left: .25rem solid var(--slate);
  border-radius: 0 var(--r-item) var(--r-item) 0;
  background: var(--slate-50);
  color: var(--slate-ink);
}

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

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

.reading-wrap table {
  width: 100%;
  border-collapse: collapse;
  margin-block: 1.5rem;
  font-size: .9rem;
  line-height: 1.65;
}

.reading-wrap .table-scroll table {
  min-width: 36rem;
  margin: 0;
}

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

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

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

.reading-wrap tbody tr:hover {
  background: var(--berry-50);
}

.reading-wrap pre {
  position: relative;
  max-width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0;
  padding: 2.8rem 1.25rem 1.25rem;
  border: 1px solid var(--slate);
  border-radius: var(--r-item);
  background: var(--slate-ink);
  color: var(--bg-panel);
  font: .88rem/1.75 var(--font-mono);
  tab-size: 2;
}

.reading-wrap pre::before {
  content: "●  ●  ●";
  position: absolute;
  top: .65rem;
  left: 1.25rem;
  color: var(--pink-26);
  letter-spacing: .2em;
}

.reading-wrap pre code {
  font: inherit;
  color: inherit;
  background: none;
}

.reading-wrap :not(pre) > code {
  padding: .1em .35em;
  border-radius: var(--r-item);
  background: var(--bg-panel2);
  font: .88em var(--font-mono);
}

.reading-wrap .callout {
  position: relative;
  margin-block: 1.5rem;
  padding: 1rem 1.25rem 1rem 3.2rem;
  border-left: .25rem solid var(--accent);
  border-radius: 0 var(--r-item) var(--r-item) 0;
  background: var(--berry-50);
  color: var(--text);
}

.reading-wrap .callout::before {
  content: "i";
  position: absolute;
  top: 1.15rem;
  left: 1rem;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: var(--r-pill);
  background: var(--accent-dark);
  color: var(--bg-panel);
  font: 700 .8rem/1.3rem var(--font-body);
  text-align: center;
}

.reading-wrap .callout.warning {
  border-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 11%, var(--bg-panel));
}

.reading-wrap .callout.warning::before {
  content: "!";
  background: var(--warn);
  color: var(--text);
}

.reading-wrap .callout.success {
  border-color: var(--success);
  background: color-mix(in srgb, var(--success) 11%, var(--bg-panel));
}

.reading-wrap .callout.success::before {
  content: "✓";
  background: var(--success);
  color: var(--bg-panel);
}

.reading-wrap .stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: .8rem;
  margin-block: 1.5rem;
}

.reading-wrap .stat-card {
  position: relative;
  overflow: hidden;
  padding: 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--berry-50);
}

.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: var(--slate-50);
}

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

.reading-wrap .stat-num {
  display: block;
  color: var(--accent-dark);
  font: 800 clamp(1.35rem, 3vw, 1.8rem)/1.4 var(--font-display);
}

.reading-wrap .stat-card:nth-child(even) .stat-num {
  color: var(--slate-ink);
}

.reading-wrap .stat-label {
  display: block;
  margin-top: .3rem;
  color: var(--text-muted);
  font-size: .88rem;
  line-height: 1.6;
}

.reading-wrap .check-list {
  display: grid;
  gap: .55rem;
  padding: 0;
  margin-block: 1.5rem;
  list-style: none;
}

.reading-wrap .check-list li {
  margin: 0;
  padding: .8rem 1rem;
  border: 1px solid var(--border-soft);
  border-radius: var(--r-item);
  background: var(--bg-panel);
  list-style: none;
}

.reading-wrap .verdict {
  margin-block: 1.5rem;
  padding: 1.1rem 1.4rem;
  border-left: .3rem solid var(--accent);
  border-radius: 0 var(--r-item) var(--r-item) 0;
  background: var(--berry-50);
  color: var(--text);
}

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

.promo-block {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 3rem;
  padding-block: 2rem;
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-card);
  background: linear-gradient(115deg, var(--accent-dark), var(--slate-ink));
  color: var(--bg-panel);
  box-shadow: 0 18px 42px var(--shadow-10);
}

.promo-block::before {
  content: "";
  position: absolute;
  top: .8rem;
  right: 1rem;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--pink-26);
  border-radius: var(--r-pill);
  pointer-events: none;
}

.promo-block strong {
  font: 800 1.25rem/1.4 var(--font-display);
}

.promo-block p {
  margin: .4rem 0 0;
  color: var(--bg-panel);
  font-size: .95rem;
  line-height: 1.7;
}

.promo-block .btn-primary {
  flex: none;
  border: 1px solid var(--bg-panel);
  background: var(--bg-panel);
  color: var(--accent-dark);
  box-shadow: 0 4px var(--pink-26);
}

.promo-block .btn-primary:hover,
.promo-block .btn-primary:focus-visible {
  background: var(--berry-50);
  color: var(--accent-dark);
}

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

.post-nav-card,
.related-card {
  display: block;
  min-width: 0;
  padding: 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--bg-panel);
  color: var(--text);
  text-decoration: none;
  box-shadow: inset 0 1px var(--hi-soft);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}

.post-nav-card:hover,
.post-nav-card:focus-visible,
.related-card:hover,
.related-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 12px 28px var(--shadow-10);
}

.post-nav-card span {
  display: block;
  margin-bottom: .5rem;
  color: var(--accent-dark);
  font-size: .8rem;
  font-weight: 700;
}

.post-nav-card strong,
.related-card strong {
  display: block;
  line-height: 1.55;
  font-size: .97rem;
  overflow-wrap: anywhere;
}

#related-posts {
  padding-top: 1rem;
  padding-bottom: 4rem;
}

#related-posts h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  line-height: 1.4;
  letter-spacing: -.01em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .8rem;
}

.related-card .blog-entry-tag {
  margin-bottom: .85rem;
}

.related-card time {
  display: block;
  margin-top: .85rem;
  color: var(--text-muted);
  font: .78rem/1.5 var(--font-mono);
}

@media (max-width: 860px) {
  .reading-wrap table:not(.table-scroll table) {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
    white-space: nowrap;
  }
}

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

  .blog-list-hero h1 {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  .article-hero h1 {
    font-size: clamp(1.7rem, 7vw, 2.2rem);
  }

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

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

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

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