:root {
  --blog-size-small: 0.8125rem;
  --blog-size-meta: 0.875rem;
  --blog-size-body: 1rem;
  --blog-size-card: 1.25rem;
  --blog-size-h2: 1.5rem;
  --blog-size-list-h1: clamp(1.75rem, 1.2rem + 2vw, 3rem);
  --blog-size-article-h1: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  --blog-size-lead: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  --blog-line-body: 1.8;
  --blog-line-heading: 1.4;
  --blog-motion-distance: 8px;
}

/* 列表页 */
.blog-index {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
}

.blog-skip {
  position: absolute;
  inset: 8px auto auto 16px;
  z-index: 100;
  padding: 12px 18px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-btn);
  background: var(--c-text);
  color: var(--c-on-ink);
  transform: translateY(-160%);
}

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

.blog-list-head {
  padding-block: 88px 48px;
}

.blog-list-head .eyebrow {
  margin: 0 0 20px;
  color: var(--c-muted);
  font-size: var(--blog-size-small);
}

.blog-list-head h1 {
  margin: 0;
  max-width: 100%;
  font-family: var(--font-display);
  font-size: var(--blog-size-list-h1);
  font-weight: var(--weight-normal);
  letter-spacing: var(--track-display);
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.blog-list-intro {
  max-width: 42rem;
  margin: 24px 0 0;
  color: var(--c-muted);
  font-size: var(--blog-size-lead);
  line-height: var(--blog-line-body);
}

.blog-catalog {
  padding-bottom: 96px;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.blog-filter {
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-chip);
  background: var(--c-bg);
  color: var(--c-muted);
  font-family: var(--font-body);
  font-size: var(--blog-size-meta);
  font-weight: var(--weight-normal);
  line-height: 1.5;
  cursor: pointer;
  transition: background var(--dur), border-color var(--dur), color var(--dur);
}

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

.blog-filter[aria-pressed="true"] {
  border-color: var(--c-border-strong);
  background: var(--c-panel-2);
  color: var(--c-text);
}

.blog-result-count {
  margin: 24px 0;
  color: var(--c-muted);
  font-size: var(--blog-size-small);
  line-height: 1.6;
}

.blog-post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.blog-post-card,
.blog-related-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 32px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  background: var(--c-bg);
  color: var(--c-text);
  box-shadow: var(--shadow-soft);
  overflow-wrap: anywhere;
}

.blog-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  color: var(--c-muted);
  font-size: var(--blog-size-small);
  line-height: 1.6;
}

.blog-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--r-chip);
  background: var(--c-panel-2);
  color: var(--c-text);
  font-size: var(--blog-size-small);
  font-weight: var(--weight-normal);
}

.blog-post-card h2,
.blog-related-card h3 {
  margin: 20px 0 0;
  font-family: var(--font-display);
  font-size: var(--blog-size-card);
  font-weight: var(--weight-normal);
  letter-spacing: var(--track-cjk);
  line-height: 1.55;
}

.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 {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.blog-card-summary {
  margin: 16px 0 24px;
  color: var(--c-muted);
  font-size: var(--blog-size-body);
  line-height: var(--blog-line-body);
}

.blog-read-link {
  align-self: flex-start;
  margin-top: auto;
  color: var(--c-text);
  font-size: var(--blog-size-meta);
  text-decoration: underline;
  text-decoration-color: var(--c-border-strong);
  text-underline-offset: 0.3em;
}

.blog-read-link:hover {
  text-decoration-color: var(--c-text);
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  color: var(--c-muted);
  line-height: var(--blog-line-body);
}

.blog-empty a,
.blog-catalog-note a {
  color: var(--c-text);
  text-underline-offset: 0.25em;
}

.blog-catalog-note {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--c-border);
  color: var(--c-muted);
  font-size: var(--blog-size-meta);
  line-height: var(--blog-line-body);
}

.blog-catalog-note p {
  margin: 0 0 12px;
}

/* 标准文章骨架的限宽、边距和截断由构建系统追加。 */
.trail-nav,
.article-meta {
  color: var(--c-muted);
  font-family: var(--font-body);
  font-size: var(--blog-size-small);
  line-height: 1.6;
}

.trail-nav a {
  color: var(--c-muted);
  text-decoration: none;
}

.trail-nav a:hover {
  color: var(--c-text);
}

.trail-nav [aria-hidden="true"] {
  color: var(--c-faint);
}

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

.article-head h1 {
  font-family: var(--font-display);
  font-size: var(--blog-size-article-h1);
  font-weight: var(--weight-normal);
  letter-spacing: var(--track-cjk);
  line-height: 1.32;
  overflow-wrap: anywhere;
}

.entry-lead {
  color: var(--c-muted);
  font-family: var(--font-body);
  font-size: var(--blog-size-lead);
  line-height: 1.7;
}

.article-prose {
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: var(--blog-size-body);
  line-height: var(--blog-line-body);
  overflow-wrap: anywhere;
}

/* 兼容先前文章命名，不修改标准骨架的几何规则。 */
.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  margin-top: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--c-muted);
  font-family: var(--font-body);
  font-size: var(--blog-size-small);
  line-height: 1.6;
  white-space: nowrap;
  overflow: hidden;
}

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

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

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

.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;
}

.section:has(> .blog-breadcrumb),
.section:has(> nav.breadcrumb),
.section:has(> nav.breadcrumbs),
.section:has(> .wrap > .blog-breadcrumb),
.section:has(> .wrap > nav.breadcrumb),
.section:has(> .wrap > nav.breadcrumbs) {
  padding-block: 12px 0;
}

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

.article-hero h1 {
  max-width: 100%;
  margin-block: 1rem;
  font-family: var(--font-display);
  font-size: var(--blog-size-article-h1);
  font-weight: var(--weight-normal);
  line-height: 1.32;
  letter-spacing: var(--track-cjk);
}

.article-hero .article-meta {
  margin-bottom: 1rem;
}

.article-hero .lede {
  margin-top: 1rem;
  font-size: var(--blog-size-lead);
  line-height: 1.7;
  color: var(--c-muted);
}

/* 正文节奏与长内容防御 */
.article-prose > section,
.article-prose section.section,
.prose > section,
.prose section.section {
  margin-block: 0 32px;
  padding-block: 0;
}

.article-prose h2,
.prose h2 {
  margin: 32px 0 16px;
  font-family: var(--font-display);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-normal);
  line-height: var(--blog-line-heading);
  letter-spacing: var(--track-cjk);
}

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

.article-prose h3,
.prose h3 {
  margin: 24px 0 12px;
  font-family: var(--font-display);
  font-size: var(--blog-size-card);
  font-weight: var(--weight-medium);
  line-height: 1.5;
}

.article-prose p,
.prose p {
  margin-block: 0 16px;
}

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

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

.article-prose a:not([class*="btn"]):not([class*="button"]),
.prose a:not([class*="btn"]):not([class*="button"]) {
  color: var(--c-text);
  text-decoration-color: var(--c-border-strong);
  text-underline-offset: 0.25em;
}

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

.article-prose code,
.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.article-prose :not(pre) > code,
.prose :not(pre) > code {
  padding: 2px 5px;
  border-radius: var(--r-hl);
  background: var(--c-panel-2);
  color: var(--c-text);
  overflow-wrap: anywhere;
}

.article-prose pre,
.prose pre {
  max-width: 100%;
  margin-block: 20px;
  padding: 20px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-btn);
  background: var(--c-panel);
  color: var(--c-text);
  line-height: 1.75;
  overflow-x: auto;
  white-space: pre;
}

.article-prose blockquote,
.prose blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  border-inline-start: 2px solid var(--c-accent);
  background: var(--c-panel);
  color: var(--c-muted);
}

.article-prose table,
.prose table {
  display: block;
  max-width: 100%;
  margin-block: 20px;
  border-collapse: collapse;
  overflow-x: auto;
  font-size: var(--blog-size-meta);
}

.article-prose th,
.article-prose td,
.prose th,
.prose td {
  min-width: 7em;
  padding: 12px 16px;
  border: 1px solid var(--c-border);
  text-align: start;
  word-break: normal;
  overflow-wrap: normal;
}

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

.article-prose img,
.prose img {
  max-width: 100%;
}

/* 文末卡、延伸阅读和相邻文章 */
.dl-card {
  display: grid;
  gap: 20px;
  margin-block: 32px;
  padding: 28px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  background: var(--c-panel);
  color: var(--c-text);
}

.dl-card h2 {
  margin: 0 0 12px;
  font-size: var(--blog-size-card);
  font-weight: var(--weight-normal);
  line-height: 1.5;
}

.dl-card p {
  margin: 0;
  color: var(--c-muted);
  font-size: var(--blog-size-meta);
  line-height: var(--blog-line-body);
}

.dl-card .btn {
  justify-self: start;
}

#related-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 20px;
  max-width: 820px;
  margin-block: 24px 32px;
}

.blog-related-card {
  padding: 24px;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-block: 24px 40px;
}

.blog-post-nav-card {
  display: grid;
  align-content: start;
  gap: 12px;
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  background: var(--c-bg);
  color: var(--c-text);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: border-color var(--dur), background var(--dur);
}

.blog-post-nav-card:hover {
  border-color: var(--c-border-strong);
  background: var(--c-panel);
}

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

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

.blog-nav-title {
  color: var(--c-text);
  font-size: var(--blog-size-body);
  line-height: 1.7;
}

/* 使用独立命名，避免覆盖公共弹窗和按钮皮肤。 */
body.blog-dialog-open {
  overflow: hidden;
}

.blog-download-dialog {
  position: fixed;
  inset: 0;
  width: min(520px, calc(100% - 32px));
  max-height: calc(100dvh - 48px);
  margin: auto;
  padding: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--r-panel);
  background: var(--c-bg);
  color: var(--c-text);
  box-shadow: var(--shadow-panel);
  font-family: var(--font-body);
  overflow: auto;
  opacity: 0;
  transform: translateY(var(--blog-motion-distance));
  transition: opacity var(--dur), transform var(--dur);
}

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

.blog-download-dialog.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.blog-download-dialog.is-closing {
  opacity: 0;
  transform: translateY(var(--blog-motion-distance));
}

.blog-dialog-panel {
  position: relative;
  padding: 72px 32px 32px;
}

.blog-dialog-close {
  position: absolute;
  inset: 16px 16px auto auto;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-btn);
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: var(--blog-size-meta);
  cursor: pointer;
}

.blog-dialog-close:hover {
  background: var(--c-panel);
  border-color: var(--c-border-strong);
}

.blog-dialog-eyebrow {
  margin: 0 0 16px;
  color: var(--c-muted);
  font-size: var(--blog-size-small);
}

.blog-dialog-panel h2 {
  margin: 0 0 20px;
  color: var(--c-text);
  font-family: var(--font-display);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-normal);
  line-height: 1.4;
}

.blog-dialog-panel > p:not(.blog-dialog-eyebrow) {
  margin: 0 0 20px;
  font-size: var(--blog-size-body);
  line-height: var(--blog-line-body);
}

.blog-dialog-panel .blog-dialog-note {
  color: var(--c-muted);
  font-size: var(--blog-size-meta);
}

.blog-dialog-panel .btn {
  width: 100%;
}

.blog-filter:focus-visible,
.blog-post-card a:focus-visible,
.blog-related-card a:focus-visible,
.blog-post-nav-card:focus-visible,
.blog-dialog-close:focus-visible,
.blog-dialog-panel a:focus-visible,
.trail-nav a:focus-visible,
.blog-breadcrumb a:focus-visible,
nav.breadcrumb a:focus-visible,
nav.breadcrumbs a:focus-visible {
  outline: 2px solid var(--c-accent-dark);
  outline-offset: 4px;
}

@media (max-width: 767px) {
  .blog-list-head {
    padding-block: 48px 32px;
  }

  .blog-list-head h1 {
    font-size: clamp(1.75rem, 5vw, 1.875rem);
  }

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

  .blog-catalog {
    padding-bottom: 64px;
  }

  .blog-post-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .blog-post-card,
  .blog-related-card {
    padding: 24px;
  }

  .blog-filter {
    padding-inline: 14px;
  }

  #post-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

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

  .dl-card,
  .blog-dialog-panel {
    padding-inline: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-filter,
  .blog-post-nav-card,
  .blog-download-dialog {
    transition: none;
  }

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

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

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

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

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

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

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

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

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

@media (max-width: 720px) {
  .seg-stats, .seg-stats[data-cols="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .seg-config, .seg-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: 700px; 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;
}
.article-head { padding-block: 0.75rem 1.75rem; }
.hero-box { max-width: 700px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); }
.article-meta { margin: 0 0 1.1rem; font-size: 13px; line-height: 1.6; opacity: 0.72; }
.hero-box 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-prose { max-width: 700px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 24px); padding-block: 0.25rem 3rem; }
.article-prose > h2:first-of-type { margin-top: 0; }