/* ==========================================================================
   blog.css · 博客列表页与文章页专属样式
   --------------------------------------------------------------------------
   本文件负责:文章卡、面包屑(含 nav.breadcrumb / nav.breadcrumbs 兜底)、
   文章正文排版、文末下载引导卡、#related-posts 延伸阅读、#post-nav 上下篇。
   不重定义 components.css 的 .dl-fab / .dl-modal / .btn 皮肤。
   文章页骨架类(.breadcrumb / .post-intro / .hero-box / .post-meta /
   .standfirst / .prose)的限宽与上下距几何由面板在文件尾部统一追加,
   本文件只写皮肤与字号级距,不写 max-width / margin / padding 几何。
   色彩一律取自 :root 设计令牌。
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 面包屑
   -------------------------------------------------------------------------- */

.breadcrumb,
nav.breadcrumb,
nav.breadcrumbs,
.blog-breadcrumb {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
}

.breadcrumb ol,
.breadcrumb ul,
nav.breadcrumb ol,
nav.breadcrumbs ol {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb a,
nav.breadcrumb a,
nav.breadcrumbs a,
.blog-breadcrumb a,
.breadcrumb__link {
  flex: 0 0 auto;
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 0;
  transition: color 0.16s ease;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible,
nav.breadcrumb a:hover,
nav.breadcrumbs a:hover,
.blog-breadcrumb a:hover,
.breadcrumb__link:hover,
.breadcrumb__link:focus-visible {
  color: var(--accent-dark);
  text-decoration: none;
}

.breadcrumb [aria-current="page"],
nav.breadcrumb [aria-current="page"],
nav.breadcrumbs [aria-current="page"],
.breadcrumb__current {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 30ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-muted);
}

.breadcrumb__link,
.breadcrumb__current {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb__link + .breadcrumb__link::before,
.breadcrumb__link + .breadcrumb__current::before,
.breadcrumb a + a::before,
.breadcrumb a + span::before,
nav.breadcrumb a + a::before,
nav.breadcrumb a + span::before,
nav.breadcrumbs a + a::before,
nav.breadcrumbs a + span::before {
  content: "/";
  color: var(--text-muted);
  opacity: 0.45;
}

/* 列表页:面包屑与下方 hero 卡之间留出呼吸空间 */
.blog-hero > .wrap > .breadcrumb {
  margin-bottom: 1.25rem;
}

/* --------------------------------------------------------------------------
   2. 列表页 hero 与标签筛选
   -------------------------------------------------------------------------- */

.blog-hero {
  padding-top: 2.25rem;
  padding-bottom: 2.5rem;
}

.blog-hero__inner {
  padding-top: 2.25rem;
  padding-bottom: 2rem;
  padding-left: 2rem;
  padding-right: 2rem;
  background: var(--grad-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-stage);
  box-shadow: var(--sh-card);
}

.blog-hero__title {
  margin-top: 0;
  margin-bottom: 0.875rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.15rem + 2.4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
}

.blog-hero__lead {
  max-width: 62ch;
  margin-top: 0;
  margin-bottom: 1.75rem;
  font-size: clamp(0.9375rem, 0.9rem + 0.3vw, 1.0625rem);
  line-height: 1.8;
  color: var(--text-muted);
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-filter__btn {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  font-size: 0.875rem;
  line-height: 1;
  padding: 0.65rem 1rem;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: color 0.16s ease, background-color 0.16s ease, border-color 0.16s ease;
}

.tag-filter__btn:hover {
  color: var(--accent-dark);
  border-color: var(--mint);
}

.tag-filter__btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.tag-filter__btn.is-active {
  color: var(--accent-dark);
  background: var(--bg-panel-2);
  border-color: var(--accent);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   3. 列表与文章卡
   -------------------------------------------------------------------------- */

.blog-list {
  padding-top: 0.5rem;
  padding-bottom: 5rem;
}

.blog-list__count {
  margin-top: 0;
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

.blog-list__empty {
  margin-top: 0;
  margin-bottom: 0;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(290px, 100%), 1fr));
  gap: 1.25rem;
}

.post-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding-top: 1.4rem;
  padding-bottom: 1.3rem;
  padding-left: 1.4rem;
  padding-right: 1.4rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  box-shadow: var(--sh-card);
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.post-card:hover,
.post-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--mint);
  box-shadow: var(--sh-float);
}

.post-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.post-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0;
  margin-bottom: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.post-card__title {
  margin-top: 0;
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: clamp(1.0625rem, 1rem + 0.35vw, 1.1875rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--text);
}

.post-card__sum {
  margin-top: 0;
  margin-bottom: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.post-card__more {
  margin-top: auto;
  padding-top: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-dark);
}

/* 动态插入卡片的入场动画:纯 CSS 一次性动画,不依赖滚动观察器 */
@keyframes blog-card-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.post-card--enter {
  animation: blog-card-in 0.32s ease-out both;
}

@media (prefers-reduced-motion: reduce) {
  .post-card--enter {
    animation: none;
  }

  .post-card {
    transition: none;
  }

  .post-card:hover,
  .post-card:focus-visible {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   4. 文章页头部字号级距(几何由面板追加)
   -------------------------------------------------------------------------- */

.post-intro h1 {
  max-width: 100%;
  margin-top: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.015em;
  color: var(--text);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
}

.standfirst {
  font-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  line-height: 1.7;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   5. 正文排版
   -------------------------------------------------------------------------- */

.prose {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text);
  overflow-wrap: break-word;
}

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

.prose p {
  margin-top: 0;
  margin-bottom: 1.15rem;
}

.prose h2 {
  margin-top: 2rem;
  margin-bottom: 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -0.012em;
  color: var(--text);
}

.prose > h2:first-child,
.prose > h2:first-of-type {
  margin-top: 0;
}

.prose h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.25rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.prose h4 {
  margin-top: 1.25rem;
  margin-bottom: 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--text);
}

.prose ul,
.prose ol {
  margin-top: 0;
  margin-bottom: 1.15rem;
  padding-left: 1.4rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose li::marker {
  color: var(--accent-dark);
}

.prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--accent-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--mint);
}

.prose a:not([class*="btn"]):not([class*="button"]):hover {
  text-decoration-color: var(--accent);
}

.prose strong {
  font-weight: 700;
  color: var(--text);
}

.prose blockquote {
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  padding-left: 1.1rem;
  padding-right: 1.1rem;
  background: var(--bg-panel);
  border-left: 3px solid var(--mint);
  border-radius: 0 var(--r-float) var(--r-float) 0;
  color: var(--text-muted);
}

.prose blockquote p:last-child {
  margin-bottom: 0;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.1em 0.4em;
  color: var(--code-ink, var(--text));
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: var(--r-chip);
}

.prose pre {
  margin-top: 1.25rem;
  margin-bottom: 1.35rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
  padding-left: 1.15rem;
  padding-right: 1.15rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--code-ink, var(--text));
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-sheet);
}

.prose pre code {
  padding: 0;
  font-size: inherit;
  color: inherit;
  background: none;
  border: 0;
  border-radius: 0;
}

.prose pre .tok-str { color: var(--code-str); }
.prose pre .tok-num { color: var(--code-num); }
.prose pre .tok-com { color: var(--code-com); }

.prose table:not(.data-table) {
  width: 100%;
  margin-top: 1.25rem;
  margin-bottom: 1.35rem;
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.prose table:not(.data-table) th,
.prose table:not(.data-table) td {
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.prose table:not(.data-table) th {
  font-weight: 700;
  color: var(--text);
  background: var(--bg-panel);
}

.prose table:not(.data-table) td {
  color: var(--text-muted);
}

.prose img {
  max-width: 100%;
  height: auto;
  border-radius: var(--r-card);
}

.prose hr {
  margin-top: 2rem;
  margin-bottom: 2rem;
  border: 0;
  border-top: 1px solid var(--border);
}

/* 正文按章节切分时使用文章页自己的紧凑节奏,不要套首页 .section 的 112px 节奏 */
.post-body > section + section,
.article-body > section + section {
  margin-top: 2.25rem;
}

.post-body section > :first-child,
.article-body section > :first-child {
  margin-top: 0;
}

.post-body .section,
.article-body .section {
  padding-top: 0;
  padding-bottom: 0;
}

/* --------------------------------------------------------------------------
   6. 文末下载引导卡
   -------------------------------------------------------------------------- */

.dl-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-top: 2.5rem;
  margin-bottom: 0;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  padding-left: 1.6rem;
  padding-right: 1.6rem;
  background: var(--grad-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-panel);
  box-shadow: var(--sh-card);
}

.dl-cta__text {
  min-width: 0;
}

.dl-cta__title {
  margin-top: 0;
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.dl-cta__desc {
  margin-top: 0;
  margin-bottom: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.dl-cta .btn {
  flex: 0 0 auto;
}

/* --------------------------------------------------------------------------
   7. 延伸阅读(#related-posts)
   -------------------------------------------------------------------------- */

#related-posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: 1rem;
}

#related-posts:empty {
  display: none;
}

@media (min-width: 900px) {
  #related-posts {
    grid-template-columns: repeat(2, minmax(300px, 1fr));
  }
}

.related-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 1.15rem;
  padding-bottom: 1.15rem;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  box-shadow: var(--sh-ghost);
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.related-card:hover,
.related-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--mint);
  box-shadow: var(--sh-card);
}

.related-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.related-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0;
  margin-bottom: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.related-card__title {
  margin-top: 0;
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.related-card__sum {
  margin-top: 0;
  margin-bottom: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   8. 上一篇 / 下一篇(#post-nav)
   -------------------------------------------------------------------------- */

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

#post-nav:empty {
  display: none;
}

#post-nav.is-single {
  grid-template-columns: minmax(0, 1fr);
}

.post-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
  padding-left: 1.15rem;
  padding-right: 1.15rem;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  text-decoration: none;
  transition: border-color 0.16s ease, background-color 0.16s ease;
}

.post-nav__link:hover,
.post-nav__link:focus-visible {
  background: var(--bg-panel-2);
  border-color: var(--mint);
}

.post-nav__link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.post-nav__link--next {
  align-items: flex-end;
  text-align: right;
}

.post-nav__dir {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.post-nav__title {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

/* --------------------------------------------------------------------------
   9. 窄屏收束
   -------------------------------------------------------------------------- */

@media (max-width: 640px) {
  .blog-hero {
    padding-top: 1.5rem;
    padding-bottom: 1.75rem;
  }

  .blog-hero__inner {
    padding-top: 1.5rem;
    padding-bottom: 1.4rem;
    padding-left: 1.15rem;
    padding-right: 1.15rem;
    border-radius: var(--r-panel);
  }

  .blog-list {
    padding-bottom: 3.5rem;
  }

  .post-grid {
    gap: 1rem;
  }

  #post-nav {
    grid-template-columns: minmax(0, 1fr);
  }

  .post-nav__link--next {
    align-items: flex-start;
    text-align: left;
  }

  .dl-cta {
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
    padding-left: 1.15rem;
    padding-right: 1.15rem;
  }
}

/* ═══ blog-components v1(2026-08-18 面板统一追加,勿手改;色调全部 color-mix 吃站点令牌,
   明暗主题自适应)——文章富文本组件词汇表,写作端只填内容不写样式 ═══ */
.digest-summary, .digest-stats, .digest-steps, .digest-compare, .digest-faq, .digest-errors,
.digest-config, .digest-scheme, .digest-insight, .digest-flow { margin: 1.25rem 0; }

/* 色调系统:a=品牌主色 b=品牌强调色 c=青 d=琥珀 e=玫红(低饱和淡染,任何主题都压得住) */
[data-tone="a"], .digest-tone-a { --digest-tone: var(--color-primary, #4f7cff); }
[data-tone="b"], .digest-tone-b { --digest-tone: var(--color-accent, var(--color-primary, #7c5cff)); }
[data-tone="c"], .digest-tone-c { --digest-tone: #0e9f8a; }
[data-tone="d"], .digest-tone-d { --digest-tone: #d97706; }
[data-tone="e"], .digest-tone-e { --digest-tone: #e11d48; }

/* 本文速览卡 */
.digest-summary {
  border: 1px solid color-mix(in srgb, var(--color-primary, #4f7cff) 28%, transparent);
  background: color-mix(in srgb, var(--color-primary, #4f7cff) 7%, transparent);
  border-radius: 12px;
  padding: 0.875rem 1.125rem;
  font-size: 0.9375rem;
  line-height: 1.7;
}
.digest-summary strong { display: block; font-size: 0.8125rem; letter-spacing: 0.02em; opacity: 0.75; margin-bottom: 0.25rem; }
.digest-summary p { margin: 0; font-size: inherit !important; }

/* 数据瓦片行 */
.digest-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; }
.digest-stats[data-cols="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.digest-stats[data-cols="4"] { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.digest-stat {
  --digest-tone: var(--color-primary, #4f7cff);
  text-align: center;
  padding: 0.75rem 0.5rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--digest-tone) 26%, transparent);
  background: color-mix(in srgb, var(--digest-tone) 7%, transparent);
}
.digest-stat__num { font-size: 1.375rem; font-weight: 800; line-height: 1.2; color: color-mix(in srgb, var(--digest-tone) 62%, var(--color-text, currentColor)); }
.digest-stat__label { font-size: 0.75rem; opacity: 0.72; margin-top: 0.125rem; line-height: 1.45; }

/* 编号步骤卡 */
.digest-steps { list-style: none; counter-reset: bcstep; padding: 0; display: grid; gap: 0.75rem; }
.digest-step {
  counter-increment: bcstep;
  position: relative;
  padding: 0.875rem 1rem 0.875rem 3.25rem;
  border: 1px solid color-mix(in srgb, var(--color-text, #888) 14%, transparent);
  border-radius: 12px;
  background: color-mix(in srgb, var(--color-text, #888) 3%, transparent);
}
.digest-step::before {
  content: counter(bcstep);
  position: absolute; left: 0.875rem; top: 0.875rem;
  width: 1.75rem; height: 1.75rem; border-radius: 50%;
  display: grid; place-items: center;
  font-size: 0.875rem; font-weight: 700;
  background: var(--color-primary, #4f7cff);
  color: var(--color-bg, var(--color-canvas, #fff));
}
.digest-step h4 { margin: 0 0 0.25rem; font-size: 0.9375rem !important; line-height: 1.5; }
.digest-step p { margin: 0; font-size: 0.875rem; line-height: 1.65; opacity: 0.88; }

/* 对比卡组 */
.digest-compare { display: grid; gap: 0.75rem; }
.digest-compare__item {
  border: 1px solid color-mix(in srgb, var(--color-text, #888) 14%, transparent);
  border-radius: 12px;
  padding: 0.875rem 1rem;
  background: color-mix(in srgb, var(--color-text, #888) 3%, transparent);
}
.digest-compare__item.is-best {
  border: 2px solid color-mix(in srgb, var(--color-primary, #4f7cff) 55%, transparent);
  background: color-mix(in srgb, var(--color-primary, #4f7cff) 6%, transparent);
}
.digest-compare__item > header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.375rem; }
.digest-compare__item h4 { margin: 0; font-size: 0.9375rem !important; line-height: 1.5; }
.digest-compare__tag {
  font-size: 0.6875rem; font-weight: 700; line-height: 1;
  padding: 0.25rem 0.5rem; border-radius: 999px;
  background: var(--color-primary, #4f7cff);
  color: var(--color-bg, var(--color-canvas, #fff));
}
.digest-compare__item p { margin: 0 0 0.375rem; font-size: 0.875rem; line-height: 1.65; opacity: 0.88; }
.digest-compare__scene {
  font-size: 0.8125rem !important; opacity: 1 !important;
  padding: 0.375rem 0.625rem; border-radius: 8px; margin: 0 !important;
  background: color-mix(in srgb, var(--color-primary, #4f7cff) 9%, transparent);
}

/* 问答彩卡 */
.digest-faq { display: grid; gap: 0.75rem; }
.digest-faq__item {
  --digest-tone: var(--color-primary, #4f7cff);
  border: 1px solid color-mix(in srgb, var(--digest-tone) 26%, transparent);
  background: color-mix(in srgb, var(--digest-tone) 6%, transparent);
  border-radius: 12px;
  padding: 0.875rem 1rem;
}
.digest-faq__item h4 { margin: 0 0 0.3125rem; font-size: 0.9375rem !important; line-height: 1.5; }
.digest-faq__item h4::before { content: "Q "; font-weight: 800; color: color-mix(in srgb, var(--digest-tone) 62%, var(--color-text, currentColor)); }
.digest-faq__item p { margin: 0; font-size: 0.875rem; line-height: 1.65; opacity: 0.88; }

/* 报错排查卡 */
.digest-errors { display: grid; gap: 0.75rem; }
.digest-error {
  border: 1px solid color-mix(in srgb, #e11d48 22%, transparent);
  border-left: 4px solid color-mix(in srgb, #e11d48 62%, transparent);
  border-radius: 10px;
  padding: 0.875rem 1rem;
  background: color-mix(in srgb, #e11d48 5%, transparent);
}
.digest-error h4 {
  margin: 0 0 0.3125rem; font-size: 0.875rem !important; line-height: 1.5;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.digest-error p { margin: 0; font-size: 0.875rem; line-height: 1.65; opacity: 0.88; }

/* 键值配置卡 */
.digest-config { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.digest-config__card {
  --digest-tone: var(--color-primary, #4f7cff);
  border: 1px solid color-mix(in srgb, var(--digest-tone) 26%, transparent);
  background: color-mix(in srgb, var(--digest-tone) 6%, transparent);
  border-radius: 12px;
  padding: 0.875rem 1rem;
}
.digest-config__card h4 { margin: 0 0 0.5rem; font-size: 0.9375rem !important; line-height: 1.5; color: color-mix(in srgb, var(--digest-tone) 58%, var(--color-text, currentColor)); }
.digest-config__card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 0.25rem 0.75rem; font-size: 0.8125rem; line-height: 1.6; }
.digest-config__card dt { font-weight: 600; opacity: 0.7; }
.digest-config__card dd { margin: 0; }
.digest-config__note {
  margin: 0.625rem 0 0 !important; padding: 0.375rem 0.625rem; border-radius: 8px;
  font-size: 0.75rem !important; line-height: 1.55;
  background: color-mix(in srgb, var(--digest-tone) 11%, transparent);
}

/* 双栏方案面板 */
.digest-scheme {
  border: 1px solid color-mix(in srgb, var(--color-primary, #4f7cff) 24%, transparent);
  background: color-mix(in srgb, var(--color-primary, #4f7cff) 4%, transparent);
  border-radius: 14px;
  padding: 1rem 1.125rem;
}
.digest-scheme__title { margin: 0 0 0.75rem; font-size: 1rem !important; line-height: 1.5; }
.digest-scheme__cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.digest-scheme__col h5 { margin: 0 0 0.375rem; font-size: 0.875rem; line-height: 1.5; opacity: 0.92; }
.digest-scheme__col ul { margin: 0; padding-left: 1.125rem; font-size: 0.875rem; line-height: 1.7; }
.digest-scheme__note {
  margin: 0.875rem 0 0 !important; padding: 0.5rem 0.75rem; border-radius: 8px;
  font-size: 0.8125rem !important; line-height: 1.6;
  background: color-mix(in srgb, var(--color-primary, #4f7cff) 10%, transparent);
}

/* 洞察结论卡 */
.digest-insight {
  border: 1px solid color-mix(in srgb, #0e9f8a 30%, transparent);
  background: linear-gradient(135deg,
    color-mix(in srgb, #0e9f8a 8%, transparent),
    color-mix(in srgb, var(--color-primary, #4f7cff) 7%, transparent));
  border-radius: 12px;
  padding: 0.875rem 1.125rem;
}
.digest-insight h4 { margin: 0 0 0.25rem; font-size: 0.9375rem !important; line-height: 1.5; }
.digest-insight h4::before { content: "💡 "; }
.digest-insight p { margin: 0; font-size: 0.875rem; line-height: 1.68; opacity: 0.9; }

/* 流程链 */
.digest-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.digest-flow span {
  font-size: 0.8125rem; line-height: 1.5;
  padding: 0.375rem 0.75rem; border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-primary, #4f7cff) 30%, transparent);
  background: color-mix(in srgb, var(--color-primary, #4f7cff) 7%, transparent);
}
.digest-flow span:not(:last-child)::after {
  content: "→";
  margin-left: 0.5rem; margin-right: -0.25rem;
  opacity: 0.45;
}

@media (max-width: 720px) {
  .digest-stats, .digest-stats[data-cols="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .digest-config, .digest-scheme__cols { grid-template-columns: 1fr; }
}

/* ═══ article-shell v1(面板统一追加,勿手改;文章页骨架几何——限宽/对齐/节奏由此钉死,
   上方站点自有样式只负责这些类的皮肤:颜色/字体/背景/边框 ═══ */
.breadcrumb, nav.breadcrumb, nav.breadcrumbs {
  max-width: 720px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px);
  display: flex; align-items: center; gap: 0.5rem;
  white-space: nowrap; overflow: hidden;
  font-size: 13px; line-height: 1.5;
  margin-top: 1.5rem; margin-bottom: 1.25rem;
}
.breadcrumb a, nav.breadcrumb a, nav.breadcrumbs a { text-decoration: none; color: inherit; opacity: 0.62; }
.breadcrumb a:hover, nav.breadcrumb a:hover, nav.breadcrumbs a:hover { opacity: 1; }
.breadcrumb [aria-hidden], nav.breadcrumb [aria-hidden], nav.breadcrumbs [aria-hidden] { opacity: 0.35; }
.breadcrumb [aria-current="page"], nav.breadcrumb [aria-current="page"], nav.breadcrumbs [aria-current="page"] {
  max-width: 30ch; overflow: hidden; text-overflow: ellipsis; flex: 0 1 auto; min-width: 0; opacity: 0.85;
}
.post-intro { padding-block: 0.75rem 2rem; }
.hero-box { max-width: 720px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); }
.post-meta { margin: 0 0 1.1rem; font-size: 13px; line-height: 1.6; opacity: 0.72; }
.hero-box h1 { margin: 0; max-width: 100%; line-height: 1.28; font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem); }
.standfirst { margin: 1.2rem 0 0; font-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem); line-height: 1.7; opacity: 0.82; }
.prose { max-width: 720px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); padding-block: 0.25rem 3rem; }
.prose > h2:first-of-type { margin-top: 0; }