:root {
  --blog-font-xs: 0.8125rem;
  --blog-font-sm: 0.9375rem;
  --blog-font-body: 1rem;
  --blog-font-lead: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  --blog-font-list-title: clamp(1.875rem, 1.25rem + 2.2vw, 3rem);
  --blog-font-entry-title: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  --blog-font-h2: clamp(1.25rem, 1rem + 0.7vw, 1.5rem);
  --blog-font-h3: 1.25rem;
  --blog-font-card: 1.125rem;
  --blog-weight-regular: 400;
  --blog-weight-medium: 500;
  --blog-weight-bold: 700;
  --blog-weight-heavy: 800;
  --blog-line-title: 1.32;
  --blog-line-heading: 1.5;
  --blog-line-body: 1.8;
  --blog-line-lead: 1.7;
  --blog-line-meta: 1.6;
  --blog-tracking-eyebrow: 0.08em;
  --blog-space-1: 0.25rem;
  --blog-space-2: 0.5rem;
  --blog-space-3: 0.75rem;
  --blog-space-4: 1rem;
  --blog-space-5: 1.25rem;
  --blog-space-6: 1.5rem;
  --blog-space-7: 2rem;
  --blog-space-8: 2.5rem;
  --blog-space-9: 3rem;
  --blog-space-10: 4rem;
  --blog-page-width: 72rem;
  --blog-reading-width: 51.25rem;
  --blog-hero-copy-width: 46rem;
  --blog-touch: 3rem;
  --blog-focus-width: 3px;
  --blog-rule: 1px;
  --blog-breadcrumb-opacity: 0.65;
  --blog-separator-opacity: 0.35;
}

.blog-index {
  background: var(--sr-bg);
  color: var(--sr-text);
  font-family: var(--sr-font-body);
}

.blog-skip {
  position: absolute;
  z-index: 100;
  inset-inline-start: var(--blog-space-4);
  top: var(--blog-space-4);
  transform: translateY(-180%);
  padding: var(--blog-space-3) var(--blog-space-5);
  border-radius: var(--sr-r-small);
  background: var(--sr-lime);
  color: var(--sr-text);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-body);
  font-weight: var(--blog-weight-bold);
}

.blog-skip:focus {
  transform: translateY(0);
}

.blog-directory {
  width: 100%;
  max-width: calc(var(--blog-page-width) + var(--blog-space-9));
  margin-inline: auto;
  padding: var(--blog-space-6) var(--blog-space-6) var(--blog-space-10);
  box-sizing: border-box;
}

.blog-masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--blog-space-8);
  padding: var(--blog-space-9);
  border-radius: var(--sr-r-canvas);
  background: radial-gradient(ellipse at top right, var(--sr-amber), var(--sr-ink-warm) 72%);
  color: var(--sr-on-dark);
}

.blog-masthead__copy {
  min-width: 0;
  max-width: var(--blog-hero-copy-width);
}

.blog-eyebrow {
  margin: 0 0 var(--blog-space-3);
  color: var(--sr-muted);
  font-size: var(--blog-font-xs);
  font-weight: var(--blog-weight-bold);
  letter-spacing: var(--blog-tracking-eyebrow);
  line-height: var(--blog-line-meta);
}

.blog-masthead .blog-eyebrow {
  color: var(--sr-on-dark-2);
}

.blog-masthead h1 {
  display: block;
  margin: 0;
  max-width: 100%;
  color: var(--sr-on-dark);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-list-title);
  font-weight: var(--blog-weight-heavy);
  line-height: var(--blog-line-title);
  letter-spacing: var(--sr-tracking);
  overflow-wrap: break-word;
}

.blog-masthead h1 .keep {
  color: var(--sr-lime);
  white-space: nowrap;
}

.blog-masthead__lead {
  margin: var(--blog-space-5) 0 0;
  color: var(--sr-on-dark-2);
  font-size: var(--blog-font-lead);
  line-height: var(--blog-line-lead);
}

.blog-masthead__link {
  display: inline-flex;
  align-items: center;
  gap: var(--blog-space-3);
  min-height: var(--blog-touch);
  margin-top: var(--blog-space-5);
  color: var(--sr-lime);
  font-size: var(--blog-font-sm);
  font-weight: var(--blog-weight-bold);
  text-decoration: none;
}

.blog-masthead__link:hover {
  text-decoration: underline;
  text-underline-offset: var(--blog-space-1);
}

.blog-masthead__index {
  padding-inline-start: var(--blog-space-7);
  border-inline-start: var(--blog-rule) solid var(--sr-on-dark-line);
  color: var(--sr-on-dark-2);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-body);
}

.blog-masthead__index ol {
  display: grid;
  gap: var(--blog-space-3);
  margin: var(--blog-space-5) 0 0;
  padding-inline-start: var(--blog-space-6);
  color: var(--sr-on-dark);
  font-size: var(--blog-font-sm);
}

.blog-masthead__index li::marker {
  color: var(--sr-lime);
  font-family: var(--sr-font-mono);
}

.blog-catalog {
  padding-block: var(--blog-space-9);
}

.blog-catalog__heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--blog-space-4);
  margin-bottom: var(--blog-space-6);
}

.blog-catalog h2,
.blog-scope h2 {
  display: block;
  margin: 0;
  color: var(--sr-text);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-h2);
  font-weight: var(--blog-weight-heavy);
  line-height: var(--blog-line-heading);
  letter-spacing: var(--sr-tracking);
}

.blog-result-count {
  margin: 0;
  color: var(--sr-muted);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-meta);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--blog-space-2);
  margin-bottom: var(--blog-space-6);
}

.blog-filters[hidden] {
  display: none;
}

.blog-filter {
  min-height: var(--blog-touch);
  padding: var(--blog-space-3) var(--blog-space-5);
  border: var(--blog-rule) solid var(--sr-line);
  border-radius: var(--sr-r-pill);
  background: var(--sr-bg);
  color: var(--sr-muted);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-sm);
  font-weight: var(--blog-weight-medium);
  line-height: var(--blog-line-meta);
  cursor: pointer;
}

.blog-filter:hover {
  border-color: var(--sr-olive);
  color: var(--sr-text);
}

.blog-filter[aria-pressed="true"] {
  border-color: var(--sr-lime);
  background: var(--sr-lime);
  color: var(--sr-text);
  font-weight: var(--blog-weight-bold);
}

.blog-post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--blog-space-6);
}

.blog-post-grid > .article-card,
#related-posts > .article-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  margin: 0;
  padding: var(--blog-space-6);
  border: var(--blog-rule) solid var(--sr-line);
  border-radius: var(--sr-r-note);
  background: var(--sr-bg);
  box-shadow: var(--sr-shadow-card);
  color: var(--sr-text);
  box-sizing: border-box;
}

.article-card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--blog-space-3);
  margin-bottom: var(--blog-space-4);
  color: var(--sr-muted);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-meta);
}

.article-card__date {
  font-family: var(--sr-font-mono);
  font-size: var(--blog-font-xs);
  font-variant-numeric: tabular-nums;
}

.blog-tag {
  display: inline-block;
  padding: var(--blog-space-1) var(--blog-space-3);
  border: var(--blog-rule) solid var(--sr-line);
  border-radius: var(--sr-r-pill);
  background: var(--sr-panel);
  color: var(--sr-muted);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-xs);
  font-weight: var(--blog-weight-medium);
  line-height: var(--blog-line-meta);
}

.article-card .article-card__title {
  display: block;
  margin: 0;
  color: var(--sr-text);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-card);
  font-weight: var(--blog-weight-bold);
  line-height: var(--blog-line-heading);
  letter-spacing: var(--sr-tracking);
  overflow-wrap: anywhere;
}

.article-card .article-card__summary {
  margin: var(--blog-space-4) 0 var(--blog-space-5);
  color: var(--sr-muted);
  font-size: var(--blog-font-sm);
  line-height: var(--blog-line-body);
}

.article-card .article-card__link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: var(--blog-space-3);
  min-height: var(--blog-touch);
  margin-top: auto;
  color: var(--sr-olive);
  font-size: var(--blog-font-sm);
  font-weight: var(--blog-weight-bold);
  text-decoration: none;
}

.article-card__link:hover {
  text-decoration: underline;
  text-underline-offset: var(--blog-space-1);
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: var(--blog-space-6);
  border-radius: var(--sr-r-note);
  background: var(--sr-panel);
  color: var(--sr-muted);
  font-size: var(--blog-font-body);
  line-height: var(--blog-line-body);
}

.blog-empty a,
.blog-scope a {
  color: var(--sr-olive);
  text-underline-offset: var(--blog-space-1);
}

.blog-scope {
  padding: var(--blog-space-7);
  border-radius: var(--sr-r-panel);
  background: var(--sr-panel);
  color: var(--sr-muted);
}

.blog-scope p {
  margin: var(--blog-space-4) 0 0;
  font-size: var(--blog-font-sm);
  line-height: var(--blog-line-body);
}

.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: var(--blog-space-2);
  margin-top: var(--blog-space-5);
  margin-bottom: var(--blog-space-5);
  padding: 0;
  overflow: hidden;
  color: var(--sr-muted);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-meta);
  white-space: nowrap;
}

.blog-breadcrumb a,
nav.breadcrumb a,
nav.breadcrumbs a,
.trail-nav a {
  color: var(--sr-muted);
  opacity: var(--blog-breadcrumb-opacity);
  text-decoration: none;
}

.blog-breadcrumb a,
nav.breadcrumb a,
nav.breadcrumbs a {
  flex-shrink: 0;
}

.blog-breadcrumb a:hover,
nav.breadcrumb a:hover,
nav.breadcrumbs a:hover,
.trail-nav a:hover {
  color: var(--sr-olive);
  opacity: 1;
}

.blog-breadcrumb [aria-hidden="true"],
nav.breadcrumb [aria-hidden="true"],
nav.breadcrumbs [aria-hidden="true"],
.trail-nav [aria-hidden="true"] {
  opacity: var(--blog-separator-opacity);
}

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

.trail-nav {
  color: var(--sr-muted);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-meta);
}

.entry-hero,
.hero-inner {
  background: var(--sr-bg);
  color: var(--sr-text);
}

.byline-row {
  color: var(--sr-muted);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-meta);
}

.byline-row time {
  font-family: var(--sr-font-mono);
  font-variant-numeric: tabular-nums;
}

.article-lead {
  color: var(--sr-muted);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-lead);
  font-weight: var(--blog-weight-regular);
  line-height: var(--blog-line-lead);
}

.entry-body {
  background: var(--sr-bg);
  color: var(--sr-text);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-body);
  line-height: var(--blog-line-body);
}

.entry-hero h1,
.article-hero h1 {
  display: block;
  max-width: 100%;
  margin-block: var(--blog-space-4) var(--blog-space-4);
  color: var(--sr-text);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-entry-title);
  font-weight: var(--blog-weight-heavy);
  line-height: var(--blog-line-title);
  letter-spacing: var(--sr-tracking);
  overflow-wrap: break-word;
}

.article-hero {
  padding-block: var(--blog-space-3) var(--blog-space-6);
  background: var(--sr-bg);
  color: var(--sr-text);
}

.article-meta {
  margin-bottom: var(--blog-space-4);
  color: var(--sr-muted);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-meta);
}

.prose,
.article-content {
  min-width: 0;
  color: var(--sr-text);
  font-family: var(--sr-font-body);
  font-size: var(--blog-font-body);
  line-height: var(--blog-line-body);
  overflow-wrap: break-word;
}

.prose > :first-child,
.article-content > :first-child,
.entry-body > :first-child {
  margin-top: 0;
}

.prose p,
.article-content p,
.entry-body p {
  margin-block: 0 var(--blog-space-5);
}

.prose h2,
.article-content h2,
.entry-body h2 {
  display: block;
  margin-block: var(--blog-space-7) var(--blog-space-4);
  color: var(--sr-text);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-h2);
  font-weight: var(--blog-weight-heavy);
  line-height: var(--blog-line-heading);
  letter-spacing: var(--sr-tracking);
}

.prose > h2:first-of-type,
.article-content > h2:first-of-type,
.entry-body > h2:first-of-type,
.prose > section:first-of-type > h2:first-child,
.article-content > section:first-of-type > h2:first-child,
.entry-body > section:first-of-type > h2:first-child {
  margin-top: 0;
}

.prose h3,
.article-content h3,
.entry-body h3 {
  display: block;
  margin-block: var(--blog-space-6) var(--blog-space-3);
  color: var(--sr-text);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-h3);
  font-weight: var(--blog-weight-bold);
  line-height: var(--blog-line-heading);
}

.prose section,
.article-content section,
.entry-body section {
  margin-block: 0;
  padding-block: 0;
}

.prose section + section,
.article-content section + section,
.entry-body section + section {
  margin-top: var(--blog-space-7);
}

.prose section > :last-child,
.article-content section > :last-child,
.entry-body section > :last-child {
  margin-bottom: 0;
}

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

.prose a:not([class*="btn"]):not([class*="button"]),
.article-content a:not([class*="btn"]):not([class*="button"]),
.entry-body a:not([class*="btn"]):not([class*="button"]) {
  color: var(--sr-olive);
  text-underline-offset: var(--blog-space-1);
}

.prose ul,
.prose ol,
.article-content ul,
.article-content ol,
.entry-body ul,
.entry-body ol {
  margin-block: 0 var(--blog-space-5);
  padding-inline-start: var(--blog-space-6);
}

.prose li + li,
.article-content li + li,
.entry-body li + li {
  margin-top: var(--blog-space-2);
}

.prose code,
.article-content code,
.entry-body code {
  border-radius: var(--sr-r-small);
  background: var(--sr-panel);
  color: var(--sr-text);
  font-family: var(--sr-font-mono);
  font-size: var(--blog-font-sm);
  overflow-wrap: anywhere;
}

.prose pre,
.article-content pre,
.entry-body pre {
  max-width: 100%;
  margin-block: var(--blog-space-5);
  padding: var(--blog-space-5);
  overflow-x: auto;
  border: var(--blog-rule) solid var(--sr-line);
  border-radius: var(--sr-r-small);
  background: var(--sr-panel);
  color: var(--sr-text);
  font-family: var(--sr-font-mono);
  font-size: var(--blog-font-sm);
  line-height: var(--blog-line-lead);
  white-space: pre;
  box-sizing: border-box;
}

.prose pre code,
.article-content pre code,
.entry-body pre code {
  padding: 0;
  border: 0;
  background: var(--sr-panel);
  color: var(--sr-text);
  overflow-wrap: normal;
  word-break: normal;
  white-space: pre;
}

.prose blockquote,
.article-content blockquote,
.entry-body blockquote {
  margin: var(--blog-space-5) 0;
  padding: var(--blog-space-4) var(--blog-space-5);
  border-inline-start: var(--blog-focus-width) solid var(--sr-olive);
  border-radius: var(--sr-r-small);
  background: var(--sr-panel);
  color: var(--sr-muted);
}

.prose blockquote p:last-child,
.article-content blockquote p:last-child,
.entry-body blockquote p:last-child {
  margin-bottom: 0;
}

.prose table,
.article-content table,
.entry-body table {
  display: block;
  max-width: 100%;
  margin-block: var(--blog-space-5);
  overflow-x: auto;
  border-collapse: collapse;
  color: var(--sr-text);
  font-size: var(--blog-font-sm);
  line-height: var(--blog-line-lead);
}

.prose th,
.prose td,
.article-content th,
.article-content td,
.entry-body th,
.entry-body td {
  padding: var(--blog-space-3) var(--blog-space-4);
  border: var(--blog-rule) solid var(--sr-line);
  text-align: start;
  vertical-align: top;
}

.prose th,
.article-content th,
.entry-body th {
  background: var(--sr-panel);
  font-weight: var(--blog-weight-bold);
}

.prose img,
.article-content img,
.entry-body img {
  max-width: 100%;
  height: auto;
}

.prose figure,
.article-content figure,
.entry-body figure {
  max-width: 100%;
  margin: var(--blog-space-6) 0;
}

.prose figcaption,
.article-content figcaption,
.entry-body figcaption {
  margin-top: var(--blog-space-3);
  color: var(--sr-muted);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-meta);
}

.store-guide {
  margin-block: var(--blog-space-7);
  padding: var(--blog-space-6);
  border: var(--blog-rule) solid var(--sr-line);
  border-radius: var(--sr-r-note);
  background: var(--sr-panel);
  color: var(--sr-text);
}

.store-guide .store-guide__title {
  display: block;
  margin: 0 0 var(--blog-space-3);
  color: var(--sr-text);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-h3);
  font-weight: var(--blog-weight-bold);
  line-height: var(--blog-line-heading);
}

.store-guide .store-guide__body {
  margin: 0 0 var(--blog-space-5);
  color: var(--sr-muted);
  font-size: var(--blog-font-sm);
  line-height: var(--blog-line-body);
}

.related-section,
.post-navigation {
  margin-block: var(--blog-space-7);
}

.related-section > h2,
.post-navigation > h2 {
  display: block;
  margin: 0 0 var(--blog-space-5);
  color: var(--sr-text);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-h2);
  font-weight: var(--blog-weight-heavy);
  line-height: var(--blog-line-heading);
}

#related-posts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--blog-space-5);
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--blog-space-5);
  margin-block: var(--blog-space-7);
}

#related-posts:empty,
#post-nav:empty {
  display: none;
}

#post-nav .post-nav-card {
  display: flex;
  flex-direction: column;
  gap: var(--blog-space-3);
  min-width: 0;
  padding: var(--blog-space-5);
  border: var(--blog-rule) solid var(--sr-line);
  border-radius: var(--sr-r-note);
  background: var(--sr-panel);
  color: var(--sr-text);
  text-decoration: none;
}

.post-nav-card--previous {
  grid-column: 1;
}

.post-nav-card--next {
  grid-column: 2;
}

.post-nav-card__label,
.post-nav-card__meta {
  color: var(--sr-muted);
  font-size: var(--blog-font-xs);
  line-height: var(--blog-line-meta);
}

.post-nav-card__title {
  color: var(--sr-text);
  font-family: var(--sr-font-display);
  font-size: var(--blog-font-body);
  font-weight: var(--blog-weight-bold);
  line-height: var(--blog-line-lead);
  overflow-wrap: anywhere;
}

.post-nav-card:hover .post-nav-card__title {
  color: var(--sr-olive);
  text-decoration: underline;
  text-underline-offset: var(--blog-space-1);
}

.blog-filter:focus-visible,
.blog-skip:focus-visible,
.blog-directory a:focus-visible,
#related-posts a:focus-visible,
#post-nav a:focus-visible,
.blog-breadcrumb a:focus-visible,
nav.breadcrumb a:focus-visible,
nav.breadcrumbs a:focus-visible,
.trail-nav a:focus-visible {
  outline: var(--blog-focus-width) solid var(--sr-olive);
  outline-offset: var(--blog-space-1);
}

.blog-masthead a:focus-visible {
  outline-color: var(--sr-lime);
}

@media (max-width: 700px) {
  .blog-directory {
    padding: var(--blog-space-4) var(--blog-space-4) var(--blog-space-8);
  }

  .blog-masthead {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--blog-space-6);
    padding: var(--blog-space-6);
    border-radius: var(--sr-r-mobile);
  }

  .blog-masthead h1 {
    font-size: min(var(--blog-font-list-title), 1.875rem);
  }

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

  .blog-masthead__index {
    padding: var(--blog-space-5) 0 0;
    border-inline-start: 0;
    border-top: var(--blog-rule) solid var(--sr-on-dark-line);
  }

  .blog-masthead__index ol {
    display: flex;
    flex-wrap: wrap;
    gap: var(--blog-space-3) var(--blog-space-7);
    margin-top: var(--blog-space-3);
  }

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

  .post-nav-card--previous,
  .post-nav-card--next {
    grid-column: 1;
  }

  .blog-scope {
    padding: var(--blog-space-6);
    border-radius: var(--sr-r-mobile-panel);
  }

  .blog-post-grid > .article-card,
  #related-posts > .article-card,
  .store-guide {
    padding: var(--blog-space-5);
    border-radius: var(--sr-r-mobile-note);
  }
}

@media print {
  .blog-filters,
  .blog-skip {
    display: none;
  }

  .blog-masthead {
    border: var(--blog-rule) solid var(--sr-line);
    background: var(--sr-bg);
    color: var(--sr-text);
  }

  .blog-masthead h1,
  .blog-masthead h1 .keep,
  .blog-masthead .blog-eyebrow,
  .blog-masthead__lead,
  .blog-masthead__link,
  .blog-masthead__index,
  .blog-masthead__index ol,
  .blog-masthead__index li::marker {
    color: var(--sr-text);
  }

  .blog-post-grid > .article-card,
  #related-posts > .article-card {
    box-shadow: none;
    break-inside: avoid;
  }
}

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

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

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

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

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

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

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

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

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

@media (max-width: 720px) {
  .part-stats, .part-stats[data-cols="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .part-config, .part-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: 660px; 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;
}
.entry-hero { padding-block: 0.75rem 2rem; }
.hero-inner { max-width: 660px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); }
.byline-row { margin: 0 0 1.1rem; font-size: 13px; line-height: 1.6; opacity: 0.72; }
.hero-inner h1 { margin: 0; max-width: 100%; line-height: 1.28; font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem); }
.article-lead { margin: 1.2rem 0 0; font-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem); line-height: 1.7; opacity: 0.82; }
.entry-body { max-width: 660px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); padding-block: 0.25rem 3rem; }
.entry-body > h2:first-of-type { margin-top: 0; }