:root {
  --blog-size-label: 0.8125rem;
  --blog-size-title: clamp(1.75rem, 1.25rem + 2vw, 3rem);
  --blog-size-entry-title: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  --blog-size-lead: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  --blog-size-card-title: 1.25rem;
  --blog-size-h2: 1.5rem;
  --blog-size-h3: 1.25rem;
  --blog-line-title: 1.32;
  --blog-line-body: 1.8;
  --blog-line-lead: 1.7;
  --blog-link-opacity: 0.68;
  --blog-divider-opacity: 0.35;
  --blog-card-min: 300px;
  --blog-crumb-current: 30ch;
  --blog-space-1: 0.5rem;
  --blog-space-2: 0.75rem;
  --blog-space-3: 1rem;
  --blog-space-4: 1.25rem;
  --blog-space-5: 1.5rem;
  --blog-space-6: 2rem;
  --blog-space-7: 2.5rem;
  --blog-space-8: 3rem;
  --blog-space-hero: clamp(2.5rem, 5vw, 4.5rem);
  --blog-space-catalog: clamp(2rem, 4vw, 3.5rem);
  --blog-h1-top: 0.875rem;
  --blog-h1-bottom: 1rem;
}

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

.blog-skip {
  position: absolute;
  top: var(--blog-space-3);
  left: var(--gutter);
  z-index: 100;
  transform: translateY(-200%);
  padding: var(--blog-space-2) var(--blog-space-3);
  background: var(--c-ink);
  color: var(--c-on-dark);
  border-radius: var(--r-small);
}

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

.blog-index-hero {
  padding-block: var(--blog-space-hero);
  background: var(--c-bg);
  text-align: center;
}

.blog-eyebrow {
  margin: 0 0 var(--blog-space-5);
  color: var(--c-accent);
  font-size: var(--blog-size-label);
  font-weight: var(--weight-medium);
}

.blog-index-hero h1 {
  max-width: 100%;
  margin: 0;
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-size-title);
  font-weight: var(--weight-regular);
  line-height: var(--blog-line-title);
  letter-spacing: var(--tracking-display);
}

.blog-index-intro {
  max-width: var(--w-reading);
  margin: var(--blog-space-5) auto 0;
  color: var(--c-muted);
  font-size: var(--size-body);
  line-height: var(--blog-line-lead);
}

.blog-topic-notes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--blog-space-2);
  margin: var(--blog-space-6) 0 0;
  padding: 0;
  list-style: none;
}

.blog-topic-notes li {
  padding: var(--blog-space-1) var(--blog-space-3);
  border: var(--hair) solid var(--c-border);
  border-radius: var(--r-pill);
  color: var(--c-muted);
  font-size: var(--blog-size-label);
  overflow-wrap: anywhere;
}

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

.blog-catalog-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--blog-space-3);
}

.blog-catalog-top h2,
.blog-reading-note h2 {
  margin: 0;
  font-family: var(--f-display);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-regular);
  line-height: var(--blog-line-title);
  letter-spacing: var(--tracking-heading);
}

.blog-result-status {
  margin: 0;
  color: var(--c-muted);
  font-size: var(--blog-size-label);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--blog-space-1);
  margin-block: var(--blog-space-5) var(--blog-space-6);
}

.blog-filter {
  min-height: 44px;
  padding: var(--blog-space-2) var(--blog-space-4);
  border: var(--hair) solid var(--c-border);
  border-radius: var(--r-pill);
  background: var(--c-bg);
  color: var(--c-muted);
  font-family: var(--f-body);
  font-size: var(--size-small);
  font-weight: var(--weight-regular);
  line-height: 1.5;
  cursor: pointer;
  transition: background var(--time-fast), color var(--time-fast), border-color var(--time-fast);
}

.blog-filter:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.blog-filter[aria-pressed="true"] {
  border-color: var(--c-accent);
  background: var(--c-accent);
  color: var(--c-on-dark);
}

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

.blog-post-card,
.blog-related-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--space-card);
  border: var(--hair) solid var(--c-border);
  border-radius: var(--r-panel);
  background: var(--c-bg);
  color: var(--c-text);
  box-shadow: var(--shadow-flat);
}

.blog-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--blog-space-2) var(--blog-space-3);
  margin-bottom: var(--blog-space-4);
  color: var(--c-muted);
  font-size: var(--blog-size-label);
  line-height: 1.6;
}

.blog-card-meta time,
.post-meta time {
  font-variant-numeric: tabular-nums;
}

.blog-post-card h3,
.blog-related-card h3 {
  max-width: 100%;
  margin: 0;
  font-family: var(--f-display);
  font-size: var(--blog-size-card-title);
  font-weight: var(--weight-regular);
  line-height: 1.6;
  letter-spacing: var(--tracking-heading);
  overflow-wrap: break-word;
}

.blog-post-card h3 a,
.blog-related-card h3 a {
  color: var(--c-text);
  text-decoration: none;
}

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

.blog-card-summary {
  margin: var(--blog-space-3) 0 var(--blog-space-5);
  color: var(--c-muted);
  font-size: var(--size-small);
  line-height: var(--blog-line-body);
}

.blog-read-link {
  align-self: flex-start;
  margin-top: auto;
}

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

.blog-empty a {
  color: var(--c-accent);
  text-underline-offset: 0.2em;
}

.blog-reading-note {
  margin-block: var(--blog-space-6) var(--blog-space-8);
  padding-block: var(--blog-space-7);
  border-block: var(--hair) solid var(--c-border);
  background: var(--c-bg);
}

.blog-reading-note p {
  max-width: var(--w-reading);
  margin-block: var(--blog-space-3) var(--blog-space-5);
  color: var(--c-muted);
  line-height: var(--blog-line-body);
}

.crumbs,
.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: var(--blog-space-1);
  overflow: hidden;
  white-space: nowrap;
  color: var(--c-muted);
  font-family: var(--f-body);
  font-size: var(--blog-size-label);
  line-height: 1.6;
}

.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  margin-top: var(--blog-space-4);
  margin-bottom: var(--blog-space-4);
}

.crumbs a,
.blog-breadcrumb a,
nav.breadcrumb a,
nav.breadcrumbs a {
  flex-shrink: 0;
  color: var(--c-muted);
  opacity: var(--blog-link-opacity);
  text-decoration: none;
}

.crumbs a:hover,
.blog-breadcrumb a:hover,
nav.breadcrumb a:hover,
nav.breadcrumbs a:hover {
  color: var(--c-accent);
  opacity: 1;
}

.crumbs [aria-hidden="true"],
.blog-breadcrumb [aria-hidden="true"],
nav.breadcrumb [aria-hidden="true"],
nav.breadcrumbs [aria-hidden="true"] {
  flex-shrink: 0;
  color: var(--c-muted);
  opacity: var(--blog-divider-opacity);
}

.crumbs [aria-current="page"],
.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-crumb-current);
  overflow: hidden;
  color: var(--c-muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.section:has(> .crumbs),
.section:has(> .wrap > .crumbs),
.section:has(> nav.breadcrumb),
.section:has(> nav.breadcrumbs),
.section:has(> .wrap > nav.breadcrumb),
.section:has(> .wrap > nav.breadcrumbs) {
  padding-block: var(--blog-space-4) 0;
}

.entry-hero,
.head-col {
  background: var(--c-bg);
  color: var(--c-text);
}

.post-meta {
  color: var(--c-muted);
  font-family: var(--f-body);
  font-size: var(--blog-size-label);
  line-height: 1.6;
}

.post-meta > * + * {
  margin-inline-start: var(--blog-space-2);
}

.entry-hero h1 {
  max-width: 100%;
  margin-block: var(--blog-h1-top) var(--blog-h1-bottom);
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-size-entry-title);
  font-weight: var(--weight-regular);
  line-height: var(--blog-line-title);
  letter-spacing: var(--tracking-heading);
  overflow-wrap: break-word;
}

.entry-lead {
  color: var(--c-muted);
  font-family: var(--f-body);
  font-size: var(--blog-size-lead);
  line-height: var(--blog-line-lead);
}

.article-body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--f-body);
  font-size: var(--size-body);
  line-height: var(--blog-line-body);
  overflow-wrap: break-word;
}

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

.article-body h2 {
  margin-block: var(--blog-space-6) var(--blog-space-3);
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-regular);
  line-height: 1.5;
  letter-spacing: var(--tracking-heading);
}

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

.article-body h3 {
  margin-block: var(--blog-space-5) var(--blog-space-2);
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: var(--blog-size-h3);
  font-weight: var(--weight-regular);
  line-height: 1.5;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body figure,
.article-body blockquote,
.article-body pre,
.article-body .table-scroll {
  margin-block: var(--blog-space-3) var(--blog-space-5);
}

.article-body li + li {
  margin-top: var(--blog-space-1);
}

.article-body section,
.article-body .section {
  margin-block: 0;
  padding-block: var(--blog-space-2);
}

.article-body section + section,
.article-body .section + .section {
  margin-top: var(--blog-space-5);
}

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

.prose a:not([class*="btn"]):not([class*="button"]),
.article-body a:not([class*="btn"]):not([class*="button"]) {
  color: var(--c-accent);
  text-decoration-thickness: var(--hair);
  text-underline-offset: 0.2em;
}

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

.article-body :not(pre) > code {
  padding: 0.1em 0.3em;
  border-radius: var(--r-small);
  background: var(--c-panel);
  color: var(--c-text);
  font-family: var(--f-mono);
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.article-body pre {
  max-width: 100%;
  overflow-x: auto;
  padding: var(--blog-space-5);
  border: var(--hair) solid var(--c-hair-light);
  border-radius: var(--r-card);
  background: var(--c-ink);
  color: var(--c-code-text);
  font-family: var(--f-mono);
  font-size: var(--size-small);
  line-height: 1.8;
}

.article-body pre code {
  background: var(--c-clear);
  color: inherit;
  font-family: inherit;
  white-space: pre;
  overflow-wrap: normal;
  word-break: normal;
}

.article-body blockquote {
  padding: var(--blog-space-3) var(--blog-space-5);
  border-inline-start: var(--focus) solid var(--c-accent);
  background: var(--c-panel);
  color: var(--c-muted);
}

.article-body blockquote p {
  margin-block: 0;
}

.article-body .table-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.article-body th,
.article-body td {
  min-width: 7em;
  padding: var(--blog-space-2) var(--blog-space-3);
  border-bottom: var(--hair) solid var(--c-border);
  text-align: start;
  word-break: normal;
}

.article-body th {
  background: var(--c-panel);
  color: var(--c-text);
  font-weight: var(--weight-medium);
}

.article-store-guide {
  margin-block: var(--blog-space-6);
  padding: var(--space-card);
  border: var(--hair) solid var(--c-border);
  border-radius: var(--r-panel);
  background: var(--c-panel);
  color: var(--c-text);
}

.article-store-guide h2 {
  margin-top: 0;
  margin-bottom: var(--blog-space-3);
  color: var(--c-text);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-regular);
}

.article-store-guide p {
  margin-block: var(--blog-space-3) var(--blog-space-5);
  color: var(--c-muted);
  line-height: var(--blog-line-lead);
}

#related-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--blog-card-min)), 1fr));
  gap: var(--blog-space-5);
  margin-block: var(--blog-space-5) var(--blog-space-6);
}

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

.blog-related-card {
  background: var(--c-panel);
  border-color: var(--c-panel);
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--blog-space-5);
  margin-block: var(--blog-space-6);
}

#post-nav a.blog-nav-card {
  display: flex;
  flex-direction: column;
  gap: var(--blog-space-2);
  min-width: 0;
  padding: var(--blog-space-5);
  border: var(--hair) solid var(--c-border);
  border-radius: var(--r-card);
  background: var(--c-bg);
  color: var(--c-text);
  text-decoration: none;
}

#post-nav a.blog-nav-card:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.blog-nav-card--prev {
  grid-column: 1;
}

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

.blog-nav-label {
  color: var(--c-muted);
  font-size: var(--blog-size-label);
}

.blog-nav-title {
  font-family: var(--f-display);
  font-size: var(--size-body);
  font-weight: var(--weight-regular);
  line-height: 1.7;
  overflow-wrap: break-word;
}

.blog-filter:focus-visible,
.blog-post-card a:focus-visible,
.blog-related-card a:focus-visible,
#post-nav a:focus-visible,
.crumbs a:focus-visible,
.blog-breadcrumb a:focus-visible,
nav.breadcrumb a:focus-visible,
nav.breadcrumbs a:focus-visible {
  outline: var(--focus) solid var(--c-accent);
  outline-offset: var(--focus);
}

@media (max-width: 680px) {
  .blog-post-grid,
  #post-nav {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

  .blog-nav-card--prev,
  .blog-nav-card--next {
    grid-column: 1;
  }

  .blog-post-card,
  .blog-related-card {
    padding: var(--blog-space-5);
  }

  .blog-filters {
    gap: var(--blog-space-2);
  }

  .blog-filter {
    padding-inline: var(--blog-space-3);
  }
}

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

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

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

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

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

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

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

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

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

@media (max-width: 720px) {
  .brief-stats, .brief-stats[data-cols="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brief-config, .brief-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 ═══ */
.crumbs, nav.breadcrumb, nav.breadcrumbs {
  max-width: 620px; 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;
}
.crumbs a, nav.breadcrumb a, nav.breadcrumbs a { text-decoration: none; color: inherit; opacity: 0.62; }
.crumbs a:hover, nav.breadcrumb a:hover, nav.breadcrumbs a:hover { opacity: 1; }
.crumbs [aria-hidden], nav.breadcrumb [aria-hidden], nav.breadcrumbs [aria-hidden] { opacity: 0.35; }
.crumbs [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; }
.head-col { max-width: 620px; 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; }
.head-col h1 { margin: 0; max-width: 100%; line-height: 1.28; font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem); }
.entry-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-body { max-width: 620px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); padding-block: 0.25rem 3rem; }
.article-body > h2:first-of-type { margin-top: 0; }