:root {
  --blog-size-title: clamp(2rem, 1.4rem + 2.4vw, 3rem);
  --blog-size-post-title: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  --blog-size-lead: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  --blog-size-meta: 13px;
  --blog-size-h2: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
  --blog-size-h3: clamp(1.125rem, 1rem + 0.4vw, 1.25rem);
  --blog-leading-heading: 1.32;
  --blog-leading-copy: 1.8;
  --blog-leading-lead: 1.7;
  --blog-card-gap: 24px;
  --blog-card-padding: 28px;
  --blog-related-min: 300px;
  --blog-motion: 160ms;
  --blog-dialog-width: 560px;
  --blog-tracking: 0.16em;
}

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

.blog-skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: var(--z-fab);
  padding: 12px 20px;
  color: var(--c-on-accent);
  background: var(--c-accent);
  border: var(--line-width) solid var(--c-accent);
  border-radius: var(--r-0);
  transform: translateY(-180%);
}

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

.blog-eyebrow {
  margin: 0 0 24px;
  font-family: var(--f-mono);
  font-size: var(--size-micro);
  font-weight: var(--weight-medium);
  letter-spacing: var(--blog-tracking);
  color: var(--c-accent);
}

.blog-list-hero {
  padding-block: 64px;
}

.blog-list-hero h1 {
  display: block;
  max-width: 100%;
  margin: 0;
  font-family: var(--f-display);
  font-size: var(--blog-size-title);
  font-weight: var(--weight-heading);
  line-height: var(--blog-leading-heading);
  letter-spacing: var(--tracking-title);
  overflow-wrap: break-word;
}

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

.blog-list-lead {
  margin: 24px 0 0;
  font-size: var(--blog-size-lead);
  line-height: var(--blog-leading-lead);
  color: var(--c-muted);
}

.blog-topic-index {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  padding: 0;
  margin: 32px 0 0;
  list-style: none;
  font-family: var(--f-mono);
  font-size: var(--size-small);
  color: var(--c-muted);
}

.blog-topic-index li::before,
.blog-tag::before,
.blog-filters button::before {
  content: "{";
  margin-right: 0.35em;
}

.blog-topic-index li::after,
.blog-tag::after,
.blog-filters button::after {
  content: "}";
  margin-left: 0.35em;
}

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

.blog-catalog-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-bottom: 28px;
}

.blog-catalog-heading h2 {
  display: block;
  margin: 0;
  font-size: var(--size-h2);
  line-height: var(--blog-leading-heading);
  font-weight: var(--weight-heading);
}

.blog-count {
  margin: 0;
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: var(--size-small);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-bottom: 32px;
}

.blog-filters button {
  min-height: var(--touch);
  padding: 10px 0;
  border: 0;
  border-bottom: var(--line-width) solid var(--c-line);
  border-radius: var(--r-0);
  font-family: var(--f-mono);
  font-size: var(--size-small);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-mono);
  line-height: var(--leading-body);
  color: var(--c-muted);
  background: var(--c-clear);
  cursor: pointer;
  box-shadow: var(--shadow-none);
}

.blog-filters button[aria-pressed="true"] {
  color: var(--c-accent);
  border-bottom: 2px solid var(--c-accent);
}

.blog-filters button:hover {
  color: var(--c-accent);
}

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

.blog-post-card,
.blog-related-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--blog-card-padding);
  border: var(--line-width) solid var(--c-line);
  border-radius: var(--r-0);
  color: var(--c-text);
  background: var(--c-panel);
  box-shadow: var(--shadow-none);
}

.blog-post-card .article-meta,
.blog-related-card .article-meta {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 0 0 20px;
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: var(--blog-size-meta);
  line-height: var(--leading-body);
}

.blog-tag {
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: var(--blog-size-meta);
}

.blog-post-card h2,
.blog-related-card h3 {
  display: block;
  max-width: 100%;
  margin: 0;
  font-family: var(--f-display);
  font-size: var(--blog-size-h3);
  font-weight: var(--weight-strong);
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.blog-post-card h2 a,
.blog-related-card h3 a {
  color: var(--c-text);
  text-decoration: none;
}

.blog-post-card h2 a:hover,
.blog-related-card h3 a:hover {
  color: var(--c-accent);
}

.blog-card-summary {
  margin: 20px 0 24px;
  color: var(--c-muted);
  font-size: var(--size-small);
  line-height: var(--blog-leading-copy);
  overflow-wrap: anywhere;
}

.blog-read-link {
  align-self: flex-start;
  margin-top: auto;
  padding-block: 8px;
  color: var(--c-accent);
  font-size: var(--size-small);
  font-weight: var(--weight-strong);
  text-underline-offset: 4px;
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 24px;
  color: var(--c-muted);
  background: var(--c-panel);
  border: var(--line-width) solid var(--c-line);
  line-height: var(--blog-leading-copy);
}

:where(.blog-breadcrumb, nav.breadcrumb, nav.breadcrumbs) {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--f-body);
  font-size: var(--blog-size-meta);
  line-height: var(--leading-body);
  color: var(--c-muted);
}

.blog-breadcrumb,
nav.breadcrumb {
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.blog-breadcrumb-band {
  padding-top: 1.25rem;
}

:where(.blog-breadcrumb, nav.breadcrumb, nav.breadcrumbs) a {
  flex: 0 0 auto;
  color: var(--c-muted);
  text-decoration: none;
}

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

:where(.blog-breadcrumb, nav.breadcrumb, nav.breadcrumbs) > [aria-hidden="true"] {
  flex: 0 0 auto;
  color: var(--c-cross);
  opacity: 0.6;
}

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

.section:has(> .breadcrumbs),
.section:has(> .wrap > .breadcrumbs) {
  padding-block: 1.25rem;
}

.post-intro,
.intro-inner {
  color: var(--c-text);
  background: var(--c-bg);
}

.meta-row {
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: var(--blog-size-meta);
  line-height: var(--leading-body);
}

.post-intro h1,
.article-hero h1 {
  display: block;
  max-width: 100%;
  margin-block: 1rem;
  font-family: var(--f-display);
  font-size: var(--blog-size-post-title);
  font-weight: var(--weight-heading);
  line-height: var(--blog-leading-heading);
  letter-spacing: var(--tracking-title);
  color: var(--c-text);
  overflow-wrap: break-word;
}

.article-hero {
  padding-block: 12px 28px;
}

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

.article-body {
  font-family: var(--f-body);
  font-size: var(--size-body);
  line-height: var(--blog-leading-copy);
  color: var(--c-text);
}

.article-body h2,
.article-body h3 {
  display: block;
  max-width: 100%;
  font-family: var(--f-display);
  font-weight: var(--weight-strong);
  line-height: 1.5;
  color: var(--c-text);
  overflow-wrap: break-word;
}

.article-body h2 {
  margin: 32px 0 16px;
  font-size: var(--blog-size-h2);
}

.article-body h3 {
  margin: 24px 0 12px;
  font-size: var(--blog-size-h3);
}

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

.article-body p {
  margin-block: 0 18px;
  overflow-wrap: break-word;
}

.article-body > section,
.article-body section.section {
  padding-block: 0;
  margin-block: 0 32px;
}

.article-body ul,
.article-body ol {
  margin-block: 16px 24px;
  padding-inline-start: 1.5em;
}

.article-body li + li {
  margin-top: 8px;
}

.prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--c-accent);
  text-underline-offset: 4px;
}

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

.article-body code {
  font-family: var(--f-mono);
  font-size: 0.9em;
  color: var(--c-text);
  background: var(--c-panel-2);
  border-radius: var(--r-0);
  overflow-wrap: anywhere;
}

.article-body pre {
  max-width: 100%;
  overflow-x: auto;
  margin-block: 20px;
  padding: 20px;
  color: var(--c-text);
  background: var(--c-panel-2);
  border: var(--line-width) solid var(--c-line);
  border-radius: var(--r-0);
  line-height: var(--blog-leading-lead);
}

.article-body pre code {
  white-space: pre;
  overflow-wrap: normal;
  word-break: normal;
}

.article-body blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  color: var(--c-text);
  background: var(--c-panel);
  border: var(--line-width) solid var(--c-line);
  border-left: 2px solid var(--c-accent);
}

.article-body blockquote > :last-child {
  margin-bottom: 0;
}

.dl-card {
  margin-block: 32px;
  padding: var(--blog-card-padding);
  color: var(--c-text);
  background: var(--c-panel);
  border: var(--line-width) solid var(--c-line);
  border-top: 2px solid var(--c-accent);
  border-radius: var(--r-0);
}

.dl-card h2 {
  margin-top: 0;
}

#related-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--blog-related-min)), 1fr));
  gap: var(--blog-card-gap);
  margin-block: 24px 32px;
}

.article-body #related-posts,
.prose #related-posts {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--blog-related-min)), 1fr));
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--blog-card-gap);
  margin-block: 32px;
}

.blog-post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 24px;
  color: var(--c-text);
  background: var(--c-panel);
  border: var(--line-width) solid var(--c-line);
  border-radius: var(--r-0);
  text-decoration: none;
}

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

.blog-post-nav-label,
.blog-post-nav-link time {
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: var(--blog-size-meta);
}

.blog-post-nav-link strong {
  color: var(--c-text);
  font-size: var(--size-body);
  font-weight: var(--weight-strong);
  line-height: var(--blog-leading-lead);
  overflow-wrap: anywhere;
}

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

.blog-modal-open {
  overflow: hidden;
}

.blog-download-modal {
  position: fixed;
  inset: 0;
  box-sizing: border-box;
  width: min(var(--blog-dialog-width), calc(100% - 32px));
  max-width: calc(100% - 32px);
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  overflow: auto;
  color: var(--c-text);
  background: var(--c-panel);
  border: var(--line-width) solid var(--c-line);
  border-radius: var(--r-0);
  box-shadow: var(--shadow-none);
}

.blog-download-modal::backdrop {
  background: var(--c-veil);
}

.blog-download-modal[open] {
  animation: blog-modal-arrive var(--blog-motion) var(--ease) both;
}

.blog-download-modal[open]::backdrop {
  animation: blog-modal-veil var(--blog-motion) var(--ease) both;
}

.blog-download-modal.is-closing {
  animation: blog-modal-depart var(--blog-motion) var(--ease) both;
}

.blog-download-modal.is-closing::backdrop {
  animation: blog-modal-unveil var(--blog-motion) var(--ease) both;
}

.blog-download-modal-panel {
  padding: 32px;
}

.blog-download-modal h2 {
  display: block;
  margin: 0 0 20px;
  font-family: var(--f-display);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-heading);
  line-height: var(--blog-leading-heading);
  color: var(--c-text);
  overflow-wrap: anywhere;
}

.blog-download-modal-panel > p:not(.blog-eyebrow) {
  margin-block: 0 20px;
  line-height: var(--blog-leading-copy);
  overflow-wrap: anywhere;
}

.blog-download-modal-note {
  color: var(--c-muted);
  font-size: var(--size-small);
}

.blog-download-modal-actions {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.blog-download-modal-close {
  min-height: var(--touch);
  padding: 12px 24px;
  font-family: var(--f-body);
  font-size: var(--size-small);
  font-weight: var(--weight-strong);
  line-height: var(--leading-body);
  color: var(--c-text);
  background: var(--c-panel);
  border: var(--line-width) solid var(--c-line);
  border-radius: var(--r-0);
  cursor: pointer;
}

.blog-download-modal-close:hover {
  color: var(--c-accent);
  border-color: var(--c-accent);
}

:where(.blog-index, .article-body, #related-posts, #post-nav, .blog-download-modal) :focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 4px;
}

@keyframes blog-modal-arrive {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes blog-modal-depart {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(10px); }
}

@keyframes blog-modal-veil {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes blog-modal-unveil {
  from { opacity: 1; }
  to { opacity: 0; }
}

@media (max-width: 767px) {
  :root {
    --blog-size-title: clamp(1.5rem, 5.5vw, 1.875rem);
    --blog-size-post-title: 1.5rem;
    --blog-card-padding: 20px;
    --blog-card-gap: 20px;
  }

  .blog-list-hero {
    padding-block: 40px;
  }

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

  .blog-post-nav-next {
    grid-column: auto;
  }

  .blog-filters {
    gap: 12px 18px;
  }

  .blog-download-modal-panel {
    padding: 24px 20px;
  }
}

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

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

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

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

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

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

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

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

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

@media (max-width: 720px) {
  .item-stats, .item-stats[data-cols="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .item-config, .item-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 ═══ */
.breadcrumbs, nav.breadcrumb, nav.breadcrumbs {
  max-width: 720px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px);
  display: flex; align-items: center; gap: 0.5rem;
  white-space: nowrap; overflow: hidden;
  font-size: 13px; line-height: 1.5;
  margin-top: 1.5rem; margin-bottom: 1.25rem;
}
.breadcrumbs a, nav.breadcrumb a, nav.breadcrumbs a { text-decoration: none; color: inherit; opacity: 0.62; }
.breadcrumbs a:hover, nav.breadcrumb a:hover, nav.breadcrumbs a:hover { opacity: 1; }
.breadcrumbs [aria-hidden], nav.breadcrumb [aria-hidden], nav.breadcrumbs [aria-hidden] { opacity: 0.35; }
.breadcrumbs [aria-current="page"], nav.breadcrumb [aria-current="page"], nav.breadcrumbs [aria-current="page"] {
  max-width: 30ch; overflow: hidden; text-overflow: ellipsis; flex: 0 1 auto; min-width: 0; opacity: 0.85;
}
.post-intro { padding-block: 0.75rem 2rem; }
.intro-inner { max-width: 720px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); }
.meta-row { margin: 0 0 1.1rem; font-size: 13px; line-height: 1.6; opacity: 0.72; }
.intro-inner h1 { margin: 0; max-width: 100%; line-height: 1.28; font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem); }
.standfirst { margin: 1.2rem 0 0; font-size: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem); line-height: 1.7; opacity: 0.82; }
.article-body { max-width: 720px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); padding-block: 0.25rem 3rem; }
.article-body > h2:first-of-type { margin-top: 0; }