.blog-index-hero {
  padding-block: clamp(3.5rem, 8vw, 6rem) clamp(2.5rem, 6vw, 4.5rem);
  text-align: center;
}

.blog-index-hero .wrap {
  max-width: var(--reading-max);
}

.blog-index-hero h1 {
  max-width: 100%;
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 1.25rem + 2.2vw, 3rem);
  line-height: 1.16;
  letter-spacing: -0.035em;
}

.blog-index-lead {
  max-width: 44rem;
  margin: 1.25rem auto 0;
  color: var(--color-text-muted);
  font-size: clamp(1rem, 0.94rem + 0.3vw, 1.125rem);
  line-height: 1.75;
}

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

.blog-list-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.25rem;
}

.blog-list-toolbar h2 {
  margin: 0.4rem 0 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.25rem + 0.8vw, 2rem);
  line-height: 1.25;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.blog-filter-button {
  min-height: 2.75rem;
  padding-inline: 1.15rem;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text-muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-chip);
  transition:
    color 160ms ease,
    background-color 160ms ease,
    transform 160ms ease;
}

.blog-filter-button:hover {
  color: var(--color-error);
  transform: translateY(-2px);
}

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

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

.blog-result-status {
  min-height: 1.5rem;
  margin: 0 0 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.blog-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
}

.blog-article-card {
  display: flex;
  min-width: 0;
  min-height: 20rem;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.blog-article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.15rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

.blog-card-tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  padding-inline: 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-panel-strong);
  color: var(--color-accent-dark);
  font-weight: 750;
}

.blog-card-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.08rem + 0.45vw, 1.5rem);
  line-height: 1.45;
}

.blog-card-title a {
  color: var(--color-text);
  text-decoration: none;
}

.blog-card-title a:hover {
  color: var(--color-error);
}

.blog-card-summary {
  margin: 1rem 0 1.5rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.blog-card-more {
  align-self: flex-start;
  margin-top: auto;
  color: var(--color-accent-dark);
  font-weight: 800;
  text-decoration: none;
}

.blog-card-more:hover {
  color: var(--color-error);
}

.blog-empty-state {
  padding: 2rem;
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-text-muted);
  text-align: center;
}

.article-page {
  color: var(--color-text);
}

.article-page .breadcrumb-section,
.article-page .article-breadcrumb-section {
  padding-block: 1.5rem 0;
}

.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.2rem;
  margin-bottom: 1.25rem;
  overflow: hidden;
  color: color-mix(in srgb, var(--color-text-muted) 60%, transparent);
  font-size: 0.8125rem;
  line-height: 1.5;
  white-space: nowrap;
}

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

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

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

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

.article-hero {
  padding-block: 0.75rem 2rem;
}

.article-hero .reading-wrap {
  max-width: var(--reading-max);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.8rem;
  margin: 0 0 0.875rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.article-meta > * + *::before {
  margin-right: 0.8rem;
  color: color-mix(in srgb, var(--color-text-muted) 35%, transparent);
  content: "·";
}

.article-hero h1 {
  max-width: 100%;
  margin-block: 0.875rem 0.75rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  line-height: 1.32;
  letter-spacing: -0.02em;
}

.article-lead {
  max-width: 100%;
  margin: 0.9rem 0 0;
  color: var(--color-text-muted);
  font-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  line-height: 1.7;
}

.article-body {
  padding-block: 0 2.5rem;
}

.article-body > section,
.prose > section {
  padding: 0;
}

.article-body > section + section,
.prose > section + section {
  margin-top: 2.5rem;
}

.prose {
  max-width: var(--reading-max);
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.9;
}

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

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre,
.prose table,
.prose .table-scroll,
.prose aside {
  margin-block: 1rem;
}

.prose h2 {
  margin: 2.5rem 0 1rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.18rem + 0.45vw, 1.5rem);
  line-height: 1.4;
}

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

.prose h3 {
  margin: 1.8rem 0 0.75rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.04rem + 0.35vw, 1.25rem);
  line-height: 1.45;
}

.prose ul,
.prose ol {
  padding-left: 1.5rem;
}

.prose li + li {
  margin-top: 0.5rem;
}

.prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--color-accent-dark);
  font-weight: 650;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

.prose code {
  padding: 0.18em 0.42em;
  border-radius: var(--radius-xs);
  background: var(--color-panel-strong);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: var(--color-text);
  color: var(--color-canvas);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
}

.prose pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.prose blockquote,
.prose .callout {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

.prose blockquote {
  margin-inline: 0;
}

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

.prose .table-scroll {
  max-width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.prose table {
  width: 100%;
  min-width: 38rem;
  margin: 0;
  border-collapse: collapse;
}

.prose th,
.prose td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

.prose th {
  color: var(--color-text);
  font-weight: 800;
}

.end-download-card,
.dl-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-block: 2.5rem 0;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, var(--color-hero-a), var(--color-hero-b));
  color: var(--color-text);
  box-shadow: var(--shadow-banner);
}

.end-download-card h2,
.dl-card h2 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.08rem + 0.65vw, 1.6rem);
  line-height: 1.35;
}

.end-download-card p,
.dl-card p {
  margin: 0.65rem 0 0;
  color: var(--color-text);
  line-height: 1.7;
}

.related-section {
  max-width: var(--reading-max);
  margin-inline: auto;
  padding-block: 2.5rem 0;
}

.related-section h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.15rem + 0.5vw, 1.5rem);
  line-height: 1.4;
}

#related-posts {
  display: grid;
  grid-template-columns: repeat(2, minmax(min(100%, 18.75rem), 1fr));
  gap: 1rem;
}

.related-post-card {
  display: flex;
  min-width: 0;
  min-height: 15rem;
  flex-direction: column;
  padding: 1.35rem;
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition:
    transform 170ms ease,
    box-shadow 170ms ease;
}

.related-post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.related-post-meta {
  color: var(--color-accent-dark);
  font-size: 0.8125rem;
  font-weight: 750;
}

.related-post-title {
  margin-top: 0.8rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.55;
}

.related-post-summary {
  display: -webkit-box;
  margin-top: 0.75rem;
  overflow: hidden;
  color: var(--color-text-muted);
  line-height: 1.7;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.related-post-more {
  margin-top: auto;
  padding-top: 1rem;
  color: var(--color-accent-dark);
  font-weight: 750;
}

.related-post-card:hover .related-post-more {
  color: var(--color-error);
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  max-width: var(--reading-max);
  margin: 2rem auto 0;
  padding-bottom: var(--section-space);
}

.post-nav-card {
  display: flex;
  min-width: 0;
  min-height: 8.5rem;
  flex-direction: column;
  justify-content: center;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
}

.post-nav-card:hover .post-nav-title {
  color: var(--color-error);
}

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

.post-nav-label {
  margin-bottom: 0.6rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

.post-nav-title {
  font-family: var(--font-display);
  line-height: 1.55;
}

.download-dialog-open {
  overflow: hidden;
}

.download-dialog-overlay {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--gutter);
  background: color-mix(in srgb, var(--color-text) 58%, transparent);
  opacity: 0;
  transition: opacity 180ms ease;
}

.download-dialog-overlay.is-visible {
  opacity: 1;
}

.download-dialog-panel {
  position: relative;
  width: min(100%, 31rem);
  padding: clamp(1.75rem, 5vw, 2.5rem);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-text);
  text-align: center;
  box-shadow: var(--shadow-banner);
  transform: translateY(1rem) scale(0.98);
  transition: transform 180ms ease;
}

.download-dialog-overlay.is-visible .download-dialog-panel {
  transform: translateY(0) scale(1);
}

.download-dialog-close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text);
  font: inherit;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.download-dialog-close:hover {
  background: var(--color-panel-strong);
  color: var(--color-error);
}

.download-dialog-close:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.download-dialog-kicker {
  margin: 0 0 0.75rem;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.download-dialog-panel h2 {
  margin: 0;
  padding-inline: 1.5rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 1.2rem + 0.8vw, 1.8rem);
  line-height: 1.4;
}

.download-dialog-description {
  margin: 1rem 0 1.5rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

@media (max-width: 820px) {
  .blog-list-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

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

  #related-posts {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 18.75rem), 1fr));
  }
}

@media (max-width: 640px) {
  .blog-index-hero {
    padding-block: 3rem 2.5rem;
  }

  .blog-index-hero h1 {
    font-size: 1.875rem;
  }

  .blog-filter {
    flex-wrap: nowrap;
    margin-inline: calc(var(--gutter) * -1);
    padding: 0 var(--gutter) 0.5rem;
    overflow-x: auto;
  }

  .blog-filter-button {
    flex: 0 0 auto;
  }

  .blog-article-card {
    min-height: 0;
  }

  .article-page .breadcrumb-section,
  .article-page .article-breadcrumb-section {
    padding-top: 1.25rem;
  }

  .blog-breadcrumb,
  nav.breadcrumb,
  nav.breadcrumbs {
    margin-top: 1.2rem;
  }

  .article-hero h1 {
    font-size: 1.5rem;
  }

  .end-download-card,
  .dl-card {
    align-items: flex-start;
    flex-direction: column;
  }

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

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

  .download-dialog-panel {
    padding-top: 3.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-filter-button,
  .blog-article-card,
  .related-post-card,
  .download-dialog-overlay,
  .download-dialog-panel {
    transition: none;
  }
}

/* ═══ 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 ═══ */
.bc-summary, .bc-stats, .bc-steps, .bc-compare, .bc-faq, .bc-errors,
.bc-config, .bc-scheme, .bc-insight, .bc-flow { margin: 1.25rem 0; }

/* 长篇组件正文边界；内部仍由摘要、步骤、对比、数据和问答组件分节。 */
.bc-insight.bc-article-body {
  display: flow-root;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
}
.bc-insight.bc-article-body > p { margin: 0 0 1em; font-size: inherit; line-height: inherit; opacity: 1; }
.bc-prose-card { display: contents; }

/* 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"], .bc-tone-a { --bc-tone: var(--color-primary, #4f7cff); }
[data-tone="b"], .bc-tone-b { --bc-tone: var(--color-accent, var(--color-primary, #7c5cff)); }
[data-tone="c"], .bc-tone-c { --bc-tone: #0e9f8a; }
[data-tone="d"], .bc-tone-d { --bc-tone: #d97706; }
[data-tone="e"], .bc-tone-e { --bc-tone: #e11d48; }

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

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

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

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

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

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

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

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

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