:root {
  --blog-hero-space-top: 3.5rem;
  --blog-hero-space-bottom: 4rem;
  --blog-section-space: 4.5rem;
  --blog-card-gap: 1.5rem;
  --blog-card-padding: 1.75rem;
  --blog-control-gap: 0.625rem;
  --blog-inline-gap: 0.75rem;
  --blog-content-gap: 1.25rem;
  --blog-prose-gap: 1.1rem;
  --blog-heading-gap: 2.5rem;
  --blog-compact-gap: 0.875rem;
  --blog-breadcrumb-top: 1.25rem;
  --blog-breadcrumb-bottom: 1.25rem;
  --blog-border-width: 1px;
  --blog-filter-height: 2.625rem;
  --blog-card-min: 18.75rem;
  --blog-reading-width: 51.25rem;
  --blog-breadcrumb-current: 30ch;
  --blog-transition-time: 160ms;
  --blog-hero-glow: linear-gradient(
    120deg,
    var(--color-aurora-pink),
    var(--color-aurora-blue),
    var(--color-aurora-teal)
  );
}

.blog-index-hero {
  padding-block: var(--blog-hero-space-top) var(--blog-hero-space-bottom);
  background:
    linear-gradient(
      to bottom,
      color-mix(in srgb, var(--color-panel) 10%, transparent),
      var(--color-bg)
    ),
    var(--blog-hero-glow);
}

.blog-index-hero-inner {
  max-width: var(--blog-reading-width);
  margin-inline: auto;
  text-align: center;
}

.blog-index-hero h1 {
  max-width: 100%;
  margin-block: var(--blog-content-gap) var(--blog-compact-gap);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.45rem + 2vw, 3rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.blog-index-hero p {
  max-width: 42rem;
  margin-inline: auto;
  color: var(--color-muted);
  font-size: clamp(1rem, 0.93rem + 0.3vw, 1.125rem);
  line-height: 1.75;
}

.blog-catalog {
  padding-block: var(--blog-section-space);
}

.blog-catalog-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--blog-card-gap);
  margin-bottom: var(--blog-content-gap);
}

.blog-catalog-head h2 {
  margin-top: var(--blog-compact-gap);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.45rem + 1vw, 2.5rem);
  line-height: 1.2;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--blog-control-gap);
}

.blog-filter-button {
  min-height: var(--blog-filter-height);
  padding-inline: var(--blog-content-gap);
  border: var(--blog-border-width) solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-weight: 700;
  cursor: pointer;
  transition:
    border-color var(--blog-transition-time) ease,
    background-color var(--blog-transition-time) ease,
    color var(--blog-transition-time) ease,
    transform var(--blog-transition-time) ease;
}

.blog-filter-button:hover {
  border-color: var(--color-edge-orange);
  color: var(--color-accent-dark);
  transform: translateY(-0.125rem);
}

.blog-filter-button:focus-visible {
  outline: 0.1875rem solid var(--color-edge-blue);
  outline-offset: 0.1875rem;
}

.blog-filter-button.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-panel);
}

.blog-result-status {
  min-height: 1.5rem;
  margin-bottom: var(--blog-inline-gap);
  color: var(--color-muted);
  font-size: 0.875rem;
}

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

.blog-post-card,
.related-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--blog-card-padding);
  border: var(--blog-border-width) solid var(--color-edge-blue);
  border-radius: var(--radius-large);
  background:
    linear-gradient(var(--color-tint-blue), var(--color-tint-blue)),
    var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.blog-post-card:nth-child(3n + 1),
.related-card:nth-child(3n + 1) {
  border-color: var(--color-edge-pink);
  background:
    linear-gradient(var(--color-tint-pink), var(--color-tint-pink)),
    var(--color-panel);
}

.blog-post-card:nth-child(3n),
.related-card:nth-child(3n) {
  border-color: var(--color-edge-orange);
  background:
    linear-gradient(var(--color-tint-orange), var(--color-tint-orange)),
    var(--color-panel);
}

.article-meta,
.related-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--blog-inline-gap);
  margin-bottom: var(--blog-content-gap);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.article-tag,
.related-card-meta span {
  padding: 0.3rem 0.65rem;
  border: var(--blog-border-width) solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-accent-dark);
  font-family: var(--font-body);
  font-weight: 700;
}

.blog-post-card h3,
.related-card h3 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.05rem + 0.45vw, 1.5rem);
  line-height: 1.42;
}

.blog-post-card h3 a,
.related-card h3 a {
  color: inherit;
  text-decoration: none;
}

.blog-post-card h3 a:hover,
.related-card h3 a:hover {
  color: var(--color-accent-dark);
}

.blog-post-card p,
.related-card p {
  margin-block: var(--blog-content-gap);
  color: var(--color-muted);
  line-height: 1.75;
}

.article-read-link,
.related-card > .text-link {
  align-self: flex-start;
  margin-top: auto;
}

.blog-empty-state {
  grid-column: 1 / -1;
  padding: var(--blog-card-padding);
  border: var(--blog-border-width) dashed var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  color: var(--color-muted);
  text-align: center;
}

.trail-nav {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 0.8125rem;
}

.trail-nav a {
  color: color-mix(in srgb, var(--color-muted) 60%, transparent);
  text-decoration: none;
}

.trail-nav a:hover {
  color: var(--color-accent-dark);
}

.trail-nav [aria-current="page"] {
  color: var(--color-muted);
}

.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  margin-top: var(--blog-breadcrumb-top);
  margin-bottom: var(--blog-breadcrumb-bottom);
  overflow: hidden;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.4;
  white-space: nowrap;
}

.blog-breadcrumb a,
nav.breadcrumb a,
nav.breadcrumbs a {
  flex: 0 0 auto;
  color: color-mix(in srgb, var(--color-muted) 60%, transparent);
  text-decoration: none;
}

.blog-breadcrumb a:hover,
nav.breadcrumb a:hover,
nav.breadcrumbs a:hover {
  color: var(--color-accent-dark);
}

.blog-breadcrumb .separator,
nav.breadcrumb .separator,
nav.breadcrumbs .separator {
  flex: 0 0 auto;
  color: color-mix(in srgb, var(--color-muted) 35%, transparent);
}

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

.post-hero {
  border-bottom: var(--blog-border-width) solid var(--color-border);
  background:
    linear-gradient(
      125deg,
      color-mix(in srgb, var(--color-aurora-pink) 45%, transparent),
      color-mix(in srgb, var(--color-aurora-blue) 40%, transparent),
      color-mix(in srgb, var(--color-aurora-teal) 40%, transparent)
    );
  color: var(--color-text);
}

.post-meta {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.post-hero h1 {
  max-width: 100%;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.02em;
}

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

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

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

.article-prose h2 {
  margin-block: var(--blog-heading-gap) var(--blog-compact-gap);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1.2rem + 0.5vw, 1.5rem);
  line-height: 1.35;
}

.article-prose h3 {
  margin-block: 2rem var(--blog-compact-gap);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.08rem + 0.3vw, 1.25rem);
  line-height: 1.4;
}

.article-prose p,
.article-prose ul,
.article-prose ol,
.article-prose pre,
.article-prose blockquote,
.article-prose table {
  margin-block: var(--blog-prose-gap);
}

.article-prose section + section {
  margin-top: 3rem;
}

.article-prose li + li {
  margin-top: 0.55rem;
}

.article-prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--color-accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

.article-prose code {
  border-radius: var(--radius-small);
  background: var(--color-panel-alt);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
}

.article-prose pre {
  overflow-x: auto;
  border: var(--blog-border-width) solid var(--color-window-border);
  border-radius: var(--radius-medium);
  background: var(--color-window);
  box-shadow: var(--shadow-window);
}

.article-prose pre code {
  background: transparent;
  color: var(--color-window-text);
}

.article-prose blockquote {
  padding: var(--blog-content-gap) var(--blog-card-padding);
  border-left: 0.25rem solid var(--color-accent);
  border-radius: 0 var(--radius-medium) var(--radius-medium) 0;
  background: var(--color-panel);
  color: var(--color-muted);
}

.article-prose .end-download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--blog-card-gap);
  margin-top: var(--blog-heading-gap);
  padding: var(--blog-card-padding);
  border: var(--blog-border-width) solid var(--color-edge-orange);
  border-radius: var(--radius-large);
  background:
    linear-gradient(var(--color-tint-orange), var(--color-tint-orange)),
    var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

.article-prose .end-download-card h2 {
  margin: 0;
  color: var(--color-text);
}

.article-prose .end-download-card p {
  margin-block: var(--blog-compact-gap) 0;
  color: var(--color-muted);
}

#related-posts {
  color: var(--color-text);
}

.related-heading {
  margin-bottom: var(--blog-content-gap);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1.2rem + 0.5vw, 1.5rem);
  line-height: 1.35;
}

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

.related-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

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

.post-nav-card {
  display: flex;
  flex-direction: column;
  gap: var(--blog-compact-gap);
  min-width: 0;
  padding: var(--blog-card-padding);
  border: var(--blog-border-width) solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition:
    border-color var(--blog-transition-time) ease,
    transform var(--blog-transition-time) ease;
}

.post-nav-card:hover {
  border-color: var(--color-edge-orange);
  transform: translateY(-0.125rem);
}

.post-nav-label {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.post-nav-card strong {
  font-family: var(--font-display);
  line-height: 1.5;
}

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

@media (max-width: 51.25rem) {
  .blog-catalog-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .blog-filter {
    justify-content: flex-start;
  }

  .blog-article-grid {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: repeat(2, minmax(var(--blog-card-min), 1fr));
    overflow-x: auto;
  }
}

@media (max-width: 43.75rem) {
  :root {
    --blog-hero-space-top: 2.5rem;
    --blog-hero-space-bottom: 3rem;
    --blog-section-space: 3.25rem;
    --blog-card-padding: 1.25rem;
  }

  .blog-index-hero h1 {
    font-size: clamp(1.75rem, 1.45rem + 1.5vw, 1.875rem);
  }

  .blog-filter {
    width: 100%;
  }

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

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

  .related-card:last-child:nth-child(odd) {
    grid-column: auto;
  }

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

  .article-prose .end-download-card {
    align-items: stretch;
    flex-direction: column;
  }
}

/* ═══ 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 ═══ */
.pack-summary, .pack-stats, .pack-steps, .pack-compare, .pack-faq, .pack-errors,
.pack-config, .pack-scheme, .pack-insight, .pack-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"], .pack-tone-a { --pack-tone: var(--color-primary, #4f7cff); }
[data-tone="b"], .pack-tone-b { --pack-tone: var(--color-accent, var(--color-primary, #7c5cff)); }
[data-tone="c"], .pack-tone-c { --pack-tone: #0e9f8a; }
[data-tone="d"], .pack-tone-d { --pack-tone: #d97706; }
[data-tone="e"], .pack-tone-e { --pack-tone: #e11d48; }

/* 本文速览卡 */
.pack-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;
}
.pack-summary strong { display: block; font-size: 0.8125rem; letter-spacing: 0.02em; opacity: 0.75; margin-bottom: 0.25rem; }
.pack-summary p { margin: 0; font-size: inherit !important; }

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

/* 编号步骤卡 */
.pack-steps { list-style: none; counter-reset: bcstep; padding: 0; display: grid; gap: 0.75rem; }
.pack-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);
}
.pack-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));
}
.pack-step h4 { margin: 0 0 0.25rem; font-size: 0.9375rem !important; line-height: 1.5; }
.pack-step p { margin: 0; font-size: 0.875rem; line-height: 1.65; opacity: 0.88; }

/* 对比卡组 */
.pack-compare { display: grid; gap: 0.75rem; }
.pack-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);
}
.pack-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);
}
.pack-compare__item > header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.375rem; }
.pack-compare__item h4 { margin: 0; font-size: 0.9375rem !important; line-height: 1.5; }
.pack-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));
}
.pack-compare__item p { margin: 0 0 0.375rem; font-size: 0.875rem; line-height: 1.65; opacity: 0.88; }
.pack-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 */
.pack-faq { display: grid; gap: 0.75rem; }
.pack-faq__item {
  --pack-tone: var(--color-primary, #4f7cff);
  border: 1px solid color-mix(in srgb, var(--pack-tone) 26%, transparent);
  background: color-mix(in srgb, var(--pack-tone) 6%, transparent);
  border-radius: 12px;
  padding: 0.875rem 1rem;
}
.pack-faq__item h4 { margin: 0 0 0.3125rem; font-size: 0.9375rem !important; line-height: 1.5; }
.pack-faq__item h4::before { content: "Q "; font-weight: 800; color: color-mix(in srgb, var(--pack-tone) 62%, var(--color-text, currentColor)); }
.pack-faq__item p { margin: 0; font-size: 0.875rem; line-height: 1.65; opacity: 0.88; }

/* 报错排查卡 */
.pack-errors { display: grid; gap: 0.75rem; }
.pack-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);
}
.pack-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;
}
.pack-error p { margin: 0; font-size: 0.875rem; line-height: 1.65; opacity: 0.88; }

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

/* 双栏方案面板 */
.pack-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;
}
.pack-scheme__title { margin: 0 0 0.75rem; font-size: 1rem !important; line-height: 1.5; }
.pack-scheme__cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.pack-scheme__col h5 { margin: 0 0 0.375rem; font-size: 0.875rem; line-height: 1.5; opacity: 0.92; }
.pack-scheme__col ul { margin: 0; padding-left: 1.125rem; font-size: 0.875rem; line-height: 1.7; }
.pack-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 */
.pack-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;
}
.pack-insight h4 { margin: 0 0 0.25rem; font-size: 0.9375rem !important; line-height: 1.5; }
.pack-insight h4::before { content: "💡 "; }
.pack-insight p { margin: 0; font-size: 0.875rem; line-height: 1.68; opacity: 0.9; }

/* 流程链 */
.pack-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.pack-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);
}
.pack-flow span:not(:last-child)::after {
  content: "→";
  margin-left: 0.5rem; margin-right: -0.25rem;
  opacity: 0.45;
}

@media (max-width: 720px) {
  .pack-stats, .pack-stats[data-cols="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pack-config, .pack-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 ═══ */
.trail-nav, nav.breadcrumb, nav.breadcrumbs {
  max-width: 760px; 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;
}
.trail-nav a, nav.breadcrumb a, nav.breadcrumbs a { text-decoration: none; color: inherit; opacity: 0.62; }
.trail-nav a:hover, nav.breadcrumb a:hover, nav.breadcrumbs a:hover { opacity: 1; }
.trail-nav [aria-hidden], nav.breadcrumb [aria-hidden], nav.breadcrumbs [aria-hidden] { opacity: 0.35; }
.trail-nav [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-hero { padding-block: 0.75rem 1.75rem; }
.intro-col { max-width: 760px; 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; }
.intro-col h1 { margin: 0; max-width: 100%; line-height: 1.28; font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem); }
.post-lead { margin: 1.2rem 0 0; font-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem); line-height: 1.7; opacity: 0.82; }
.article-prose { max-width: 760px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); padding-block: 0.25rem 3rem; }
.article-prose > h2:first-of-type { margin-top: 0; }