@font-face {
  font-family: "Alibaba PuHuiTi";
  src: url("/assets/fonts/puhuiti-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Alibaba PuHuiTi";
  src: url("/assets/fonts/puhuiti-medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Alibaba PuHuiTi";
  src: url("/assets/fonts/puhuiti-semibold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Alibaba PuHuiTi";
  src: url("/assets/fonts/puhuiti-bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --site-primary: #2447D8;
  --site-primary-rgb: 36, 71, 216;
  --site-accent: #0EA5A4;
  --site-accent-rgb: 14, 165, 164;
  --site-bg: #FFFFFF;
  --site-surface: #F6F7FB;
  --site-text: #1A1D26;
  --site-muted: #5B6172;
  --site-border: color-mix(in srgb, var(--site-text) 12%, transparent);
  --site-radius: 10px;
  --site-container: 1160px;
  --site-font: "Alibaba PuHuiTi", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --site-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body.site-body {
  font-family: var(--site-font);
  background: var(--site-bg);
  color: var(--site-text);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.site-container {
  max-width: var(--site-container);
}

a {
  color: var(--site-primary);
  text-decoration-color: color-mix(in srgb, var(--site-primary) 40%, transparent);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--site-accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--site-accent);
  outline-offset: 2px;
}

img {
  max-width: 100%;
}

.site-header {
  background: var(--site-primary); color: #fff;
  position: sticky;
  top: 0;
  z-index: 1020;
}

.site-header .navbar-brand {
  font-weight: 700;
  letter-spacing: 0.01em;
  color: inherit;
}

.site-header .nav-link {
  color: inherit;
  opacity: 0.9;
  font-size: 0.95rem;
}

.site-header .nav-link:hover,
.site-header .nav-link:focus {
  opacity: 1;
  color: inherit;
}

.site-main {
  padding: 2rem 0 3rem;
}

.site-hero {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  padding: clamp(1.5rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

.site-hero .hero-kicker {
  color: var(--site-primary);
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.site-hero h1 {
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.3;
}

.site-hero p {
  color: var(--site-muted);
  max-width: 48rem;
}

.site-hero .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.site-hero .hero-note {
  margin-top: 1.1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--site-border);
  font-size: 0.88rem;
  color: var(--site-muted);
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.section-heading h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0;
}

.section-heading a {
  font-size: 0.9rem;
}

.home-section {
  margin-bottom: 2.75rem;
}

.home-section .section-desc {
  color: var(--site-muted);
  font-size: 0.92rem;
  margin: -0.5rem 0 1.25rem;
}

.home-section .section-note {
  margin-top: 1rem;
  color: var(--site-muted);
  font-size: 0.88rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
}

.category-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  height: 100%;
  padding: 1.1rem 1.25rem;
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  color: inherit;
  text-decoration: none;
}

.category-card:hover {
  border-color: color-mix(in srgb, var(--site-primary) 45%, var(--site-border));
  color: inherit;
}

.category-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
}

.category-card p {
  color: var(--site-muted);
  font-size: 0.88rem;
  margin: 0;
}

.category-card .article-meta {
  margin-top: auto;
}

.topic-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 1.5rem;
  align-items: start;
  padding: 1.4rem;
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-left: 4px solid var(--site-accent);
  border-radius: var(--site-radius);
  margin-bottom: 1.25rem;
}

.topic-feature .topic-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: calc(var(--site-radius) / 2);
  margin-bottom: 0.75rem;
}

.topic-feature h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.topic-feature p {
  color: var(--site-muted);
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
}

.methodology-panel {
  padding: 1.35rem 1.5rem;
  background: color-mix(in srgb, var(--site-primary) 5%, var(--site-surface));
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
}

.methodology-panel h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.methodology-panel dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin: 0;
}

.methodology-panel dt {
  font-size: 0.82rem;
  color: var(--site-muted);
  font-weight: 600;
}

.methodology-panel dd {
  margin: 0.2rem 0 0;
  font-size: 0.9rem;
}

.about-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
}

.about-strip p {
  margin: 0;
  color: var(--site-muted);
  font-size: 0.9rem;
  max-width: 44rem;
}

.about-strip .about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
  font-size: 0.9rem;
}

.cta-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem 1.5rem;
  padding: 1.1rem 1.35rem;
  margin-bottom: 2rem;
  background: color-mix(in srgb, var(--site-primary) 6%, var(--site-surface));
  border: 1px solid color-mix(in srgb, var(--site-primary) 28%, var(--site-border));
  border-radius: var(--site-radius);
}

.cta-card .cta-body {
  flex: 1 1 18rem;
  min-width: 0;
}

.cta-card .cta-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
}

.cta-card .cta-desc {
  margin: 0;
  color: var(--site-muted);
  font-size: 0.9rem;
}

.cta-card .cta-button {
  flex: 0 0 auto;
}

.cta-card.cta-banner {
  border-left: 4px solid var(--site-primary);
  background: color-mix(in srgb, var(--site-primary) 9%, var(--site-surface));
}

.cta-card.cta-sidebar {
  display: block;
  padding: 1.1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.cta-card.cta-sidebar .cta-button {
  width: 100%;
  margin-top: 0.85rem;
}

.card {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
}

.article-card {
  height: 100%;
  overflow: hidden;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.article-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0.6rem 1.6rem rgba(15, 23, 42, 0.08);
}

.article-card .card-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.article-card .card-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
  margin: 0;
}

.article-card .card-title a {
  color: inherit;
  text-decoration: none;
}

.article-card .card-text {
  color: var(--site-muted);
  font-size: 0.92rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-cover {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: color-mix(in srgb, var(--site-primary) 8%, var(--site-surface));
}

.article-meta {
  color: var(--site-muted);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
}

.breadcrumb {
  --bs-breadcrumb-divider-color: var(--site-muted);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.article-header {
  margin-bottom: 1.5rem;
}

.article-header h1 {
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  font-weight: 700;
  line-height: 1.35;
}

.article-subtitle {
  color: var(--site-muted);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

.article-summary {
  margin-top: 1rem;
  padding: 0.9rem 1.1rem;
  border-left: 3px solid var(--site-primary);
  background: var(--site-surface);
  color: var(--site-muted);
  font-size: 0.95rem;
  border-radius: calc(var(--site-radius) / 2);
}

.article-body {
  font-size: 1.03rem;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
  scroll-margin-top: 6rem;
}

.article-body h2 {
  font-size: 1.45rem;
}

.article-body h3 {
  font-size: 1.2rem;
}

.article-body p {
  margin-bottom: 1rem;
}

.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--site-radius) / 2);
}

.article-body figure {
  margin: 1.5rem 0;
}

.article-body figcaption {
  color: var(--site-muted);
  font-size: 0.85rem;
  margin-top: 0.4rem;
}

.article-body blockquote {
  border-left: 4px solid var(--site-primary);
  background: var(--site-surface);
  padding: 1rem 1.25rem;
  color: var(--site-muted);
  margin: 1.5rem 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}

.article-body th,
.article-body td {
  border: 1px solid var(--site-border);
  padding: 0.55rem 0.7rem;
  text-align: left;
  vertical-align: top;
}

.article-body th {
  background: var(--site-surface);
}

.article-body pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: var(--site-radius);
  overflow-x: auto;
  font-size: 0.88rem;
  font-family: var(--site-mono);
}

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

.article-body hr {
  border-color: var(--site-border);
  margin: 2rem 0;
}

.article-aside {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  padding: 1.1rem 1.25rem;
}

.article-aside h2 {
  font-size: 1rem;
  font-weight: 700;
}

.article-toc {
  position: sticky;
  top: 5.5rem;
  max-height: calc(100vh - 7rem);
  overflow-y: auto;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.88rem;
}

.toc-list li {
  margin-bottom: 0.4rem;
}

.toc-list li.toc-level-3 {
  padding-left: 1rem;
  font-size: 0.84rem;
}

.toc-list a {
  color: var(--site-muted);
  text-decoration: none;
}

.toc-list a:hover {
  color: var(--site-primary);
}

.toc-mobile {
  margin-bottom: 1.25rem;
}

.toc-mobile summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--site-primary);
}

.disclosure-card {
  border: 1px solid color-mix(in srgb, var(--site-accent) 40%, var(--site-border));
  background: color-mix(in srgb, var(--site-accent) 5%, var(--site-surface));
  border-radius: var(--site-radius);
  padding: 1.1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.disclosure-card h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.disclosure-card .disclosure-intro {
  color: var(--site-muted);
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
}

.disclosure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 0.75rem 1.25rem;
  margin: 0;
}

.disclosure-grid dt {
  font-size: 0.8rem;
  color: var(--site-muted);
  font-weight: 600;
}

.disclosure-grid dd {
  margin: 0.15rem 0 0;
  font-size: 0.9rem;
  word-break: break-word;
  white-space: pre-wrap;
}

.data-block {
  margin: 2rem 0;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  background: var(--site-bg);
}

.data-block-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.85rem;
}

.data-block-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
}

.data-block-type {
  display: inline-block;
  padding: 0.05rem 0.5rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--site-primary) 10%, var(--site-surface));
  color: var(--site-primary);
  font-size: 0.75rem;
}

.data-block-source {
  margin-top: 0.75rem;
  color: var(--site-muted);
  font-size: 0.82rem;
}

.data-block-empty {
  color: var(--site-muted);
  font-size: 0.88rem;
  margin: 0;
}

.data-figure {
  margin: 0 0 0.85rem;
}

.data-figure img {
  width: 100%;
  height: auto;
  border-radius: calc(var(--site-radius) / 2);
}

.data-figure figcaption {
  color: var(--site-muted);
  font-size: 0.82rem;
  margin-top: 0.4rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 0.75rem;
  margin: 0;
}

.metric-item {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--site-border);
  border-radius: calc(var(--site-radius) * 0.7);
  background: var(--site-surface);
}

.metric-item dt {
  font-size: 0.8rem;
  color: var(--site-muted);
  font-weight: 600;
}

.metric-item dd {
  margin: 0.15rem 0 0;
  font-size: 1.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.metric-unit {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--site-muted);
  margin-left: 0.2rem;
}

.metric-note {
  margin: 0.25rem 0 0;
  font-size: 0.78rem;
  color: var(--site-muted);
}

.data-table-caption {
  font-size: 0.82rem;
  color: var(--site-muted);
  margin: 0 0 0.35rem;
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  min-width: 32rem;
}

.data-table th,
.data-table td {
  border: 1px solid var(--site-border);
  padding: 0.5rem 0.65rem;
  text-align: left;
  vertical-align: top;
  font-variant-numeric: tabular-nums;
}

.data-table th {
  background: var(--site-surface);
  white-space: nowrap;
}

.data-table .th-unit {
  display: block;
  font-weight: 400;
  color: var(--site-muted);
  font-size: 0.75rem;
}

.data-table-note {
  margin: 0.4rem 0 0;
  color: var(--site-muted);
  font-size: 0.8rem;
}

.methodology {
  margin-top: 2rem;
  padding: 1.2rem 1.35rem;
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  background: var(--site-surface);
}

.methodology h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.methodology dl {
  margin: 0;
}

.methodology dt {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--site-muted);
  margin-top: 0.6rem;
}

.methodology dd {
  margin: 0.15rem 0 0;
  font-size: 0.92rem;
  white-space: pre-wrap;
}

.risk-notice {
  border-left: 4px solid var(--site-accent);
  background: var(--site-surface);
  padding: 0.85rem 1rem;
  border-radius: calc(var(--site-radius) / 2);
  color: var(--site-muted);
  font-size: 0.9rem;
}

.source-list {
  font-size: 0.88rem;
  color: var(--site-muted);
  margin-bottom: 0;
  padding-left: 1.1rem;
}

.source-list li {
  margin-bottom: 0.65rem;
  word-break: break-word;
}

.source-list .source-meta {
  display: block;
  color: var(--site-muted);
  font-size: 0.8rem;
  margin-top: 0.15rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag-pill {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--site-primary) 9%, var(--site-surface));
  color: var(--site-primary);
  font-size: 0.8rem;
  text-decoration: none;
}

.author-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.1rem 1.25rem;
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
}

.author-card .author-avatar {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  object-fit: cover;
  flex: 0 0 auto;
}

.author-card .author-card-body {
  min-width: 0;
}

.author-card h2 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.2rem;
}

.author-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--site-muted);
}

.article-disclaimer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--site-border);
  color: var(--site-muted);
  font-size: 0.82rem;
}

.hub-header {
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--site-border);
  margin-bottom: 1.75rem;
}

.hub-header h1 {
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  font-weight: 700;
}

.hub-header .hub-desc {
  color: var(--site-muted);
  max-width: 48rem;
}

.hub-header .hub-intro {
  margin-top: 1rem;
  font-size: 0.95rem;
}

.author-profile {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
  padding: 1.4rem;
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  margin-bottom: 1.75rem;
}

.author-profile .author-avatar {
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  object-fit: cover;
}

.author-profile h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
}

.author-profile p {
  color: var(--site-muted);
  font-size: 0.92rem;
  margin-bottom: 0.5rem;
}

.search-panel {
  padding: 1.35rem 1.5rem;
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  margin-bottom: 1.75rem;
}

.search-panel .search-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.search-panel input[type='search'] {
  flex: 1 1 18rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--site-border);
  border-radius: calc(var(--site-radius) * 0.7);
  background: var(--site-bg);
  color: var(--site-text);
  font-size: 1rem;
}

.search-panel .search-status {
  margin: 0.8rem 0 0;
  color: var(--site-muted);
  font-size: 0.88rem;
}

.search-results {
  display: grid;
  gap: 1rem;
}

.search-result {
  padding: 1rem 1.2rem;
}

.search-result h2 {
  font-size: 1.02rem;
  margin: 0.25rem 0;
}

.search-result-summary {
  color: var(--site-muted);
  font-size: 0.9rem;
  margin: 0.25rem 0 0.4rem;
}

.search-categories {
  margin-top: 2rem;
}

.pagination {
  --bs-pagination-color: var(--site-primary);
  --bs-pagination-active-bg: var(--site-primary);
  --bs-pagination-active-border-color: var(--site-primary);
  --bs-pagination-border-color: var(--site-border);
  --bs-pagination-bg: var(--site-surface);
}

.site-footer {
  background: var(--site-surface);
  border-top: 1px solid var(--site-border);
  color: var(--site-muted);
  padding: 2rem 0;
  font-size: 0.88rem;
}

.site-footer a {
  color: var(--site-muted);
}

.site-footer a:hover {
  color: var(--site-primary);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.75rem;
}

.empty-state {
  border: 1px dashed var(--site-border);
  border-radius: var(--site-radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--site-muted);
}

/* template: modern-business-5.0.7 */

.layout-classic,
.layout-editorial,
.layout-docs,
.layout-magazine,
.layout-report {
  --bs-primary: var(--site-primary);
  --bs-primary-rgb: var(--site-primary-rgb);
  --bs-link-color: var(--site-primary);
  --bs-link-hover-color: var(--site-accent);
  --bs-body-color: var(--site-text);
  --bs-body-bg: var(--site-bg);
  --bs-secondary-color: var(--site-muted);
  --bs-border-color: var(--site-border);
}

body.site-body {
  font-size: 1rem;
  line-height: 1.7;
}

a {
  text-decoration: none;
}

.article-body a,
.hub-intro a,
.disclosure-card a,
.source-list a {
  text-decoration: underline;
}

.site-main {
  padding: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.masthead-actions {
  justify-content: center;
}

.bg-light,
.bg-white {
  background-color: var(--site-surface) !important;
}

.btn-primary {
  --bs-btn-bg: var(--site-primary);
  --bs-btn-border-color: var(--site-primary);
  --bs-btn-hover-bg: var(--site-accent);
  --bs-btn-hover-border-color: var(--site-accent);
  --bs-btn-active-bg: var(--site-accent);
  --bs-btn-active-border-color: var(--site-accent);
  --bs-btn-disabled-bg: var(--site-primary);
  --bs-btn-disabled-border-color: var(--site-primary);
}

.btn-outline-primary {
  --bs-btn-color: var(--site-primary);
  --bs-btn-border-color: var(--site-primary);
  --bs-btn-hover-bg: var(--site-primary);
  --bs-btn-hover-border-color: var(--site-primary);
  --bs-btn-active-bg: var(--site-accent);
  --bs-btn-active-border-color: var(--site-accent);
}

.breadcrumb {
  --bs-breadcrumb-divider-color: var(--site-muted);
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
}

.hub-header {
  border-bottom: 1px solid var(--site-border);
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
}

.hub-header h1 {
  font-weight: 800;
  letter-spacing: -0.01em;
}

.hub-desc {
  color: var(--site-muted);
  max-width: 52rem;
}

.article-body {
  font-size: 1.0625rem;
  line-height: 1.85;
}

.article-inline-toc {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 1rem;
  padding: 0.85rem 1.1rem;
  margin-bottom: 1.5rem;
  background: color-mix(in srgb, var(--site-primary) 5%, var(--site-surface));
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  font-size: 0.9rem;
}

.article-inline-toc-label {
  font-weight: 700;
  color: var(--site-text);
}

.article-inline-toc a {
  text-decoration: none;
}

.article-inline-toc .toc-inline-sub {
  font-size: 0.82rem;
  color: var(--site-muted);
}

.article-header h1 {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.3;
}

.cta-card {
  border: 1px solid var(--site-border);
  background: var(--site-surface);
  border-radius: calc(var(--site-radius) + 2px);
}

.site-footer {
  margin-top: auto;
}

.layout-classic .site-header {
  position: sticky;
  background: color-mix(in srgb, var(--site-primary) 76%, #0b1020 24%);
  border-bottom: 0;
}

.layout-classic .site-header .navbar-brand,
.layout-classic .site-header .nav-link {
  color: #fff;
}

.layout-classic .site-header .nav-link {
  opacity: 0.78;
}

.layout-classic .site-header .nav-link:hover,
.layout-classic .site-header .nav-link:focus {
  opacity: 1;
}

.layout-classic .tpl-hero {
  background:
    radial-gradient(circle at 18% 20%, color-mix(in srgb, var(--site-accent) 42%, transparent), transparent 42%),
    linear-gradient(135deg, color-mix(in srgb, var(--site-primary) 70%, #0b1020 30%), #0b1020 100%);
}

.layout-classic .tpl-hero .hero-kicker {
  color: color-mix(in srgb, var(--site-accent) 65%, #fff 35%);
}

.layout-classic .tpl-hero .btn-outline-primary {
  --bs-btn-color: #fff;
  --bs-btn-border-color: rgba(255, 255, 255, 0.55);
  --bs-btn-hover-color: #0b1020;
  --bs-btn-hover-bg: #fff;
  --bs-btn-hover-border-color: #fff;
  --bs-btn-active-bg: #fff;
  --bs-btn-active-border-color: #fff;
}

.layout-classic .tpl-hero h1 {
  font-size: clamp(2rem, 4.2vw, 3.15rem);
  letter-spacing: -0.02em;
}

.layout-classic .tpl-hero-panel {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.25rem;
  padding: 2rem;
  color: #fff;
}

.layout-classic .feature {
  background: linear-gradient(135deg, var(--site-primary), color-mix(in srgb, var(--site-accent) 70%, var(--site-primary)));
  color: #fff;
}

.layout-classic .article-card {
  border: 0;
  border-radius: 1rem;
  box-shadow: 0 0.65rem 1.8rem rgba(15, 23, 42, 0.08);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  overflow: hidden;
}

.layout-classic .article-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 0.9rem 2.2rem rgba(15, 23, 42, 0.14);
}

.layout-classic .article-card .card-img-top {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.layout-classic .article-card .badge {
  background: var(--site-primary) !important;
}

.layout-classic .section-label {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--site-primary);
}

.layout-classic .site-footer {
  background: color-mix(in srgb, var(--site-primary) 60%, #0b1020 40%);
  color: rgba(255, 255, 255, 0.72);
  padding: 2.5rem 0;
}

.layout-classic .site-footer a {
  color: #fff;
}

.layout-classic .article-head-band {
  background: linear-gradient(135deg, color-mix(in srgb, var(--site-primary) 70%, #0b1020 30%), #0b1020);
  color: #fff;
  padding: 3.5rem 0 3rem;
  margin-bottom: 2.5rem;
}

.layout-classic .article-head-band h1,
.layout-classic .article-head-band a {
  color: #fff;
}

.layout-classic .article-head-band .article-meta,
.layout-classic .article-head-band .article-subtitle,
.layout-classic .article-head-band .article-summary {
  color: rgba(255, 255, 255, 0.78);
}

.layout-classic .article-head-band .article-summary {
  background: rgba(255, 255, 255, 0.08);
  border-left-color: rgba(255, 255, 255, 0.5);
}

.layout-classic .hub-header {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: 1rem;
  padding: 2rem;
}


.error-code {
  font-size: clamp(3rem, 9vw, 6rem);
  font-weight: 800;
  color: var(--site-primary);
  line-height: 1;
}

@media (max-width: 991.98px) {
  .article-toc {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .topic-feature {
    grid-template-columns: 1fr;
  }

  .topic-feature .topic-cover {
    max-height: 16rem;
  }

  .author-profile {
    grid-template-columns: 1fr;
    text-align: left;
  }
}

@media (max-width: 767.98px) {
  .site-main {
    padding-top: 1.25rem;
  }

  .article-body table {
    display: block;
    overflow-x: auto;
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-strip {
    flex-direction: column;
    align-items: flex-start;
  }

  .data-block {
    padding: 1rem;
  }

  .search-panel {
    padding: 1.1rem;
  }

  .author-profile .author-avatar {
    width: 4rem;
    height: 4rem;
  }
}

@media print {
  .site-header,
  .site-footer,
  .article-toc,
  .toc-mobile,
  .breadcrumb,
  .article-aside,
  .pagination,
  .risk-notice {
    display: none !important;
  }

  .site-main {
    padding: 0;
  }

  .article-body a {
    color: inherit;
    text-decoration: underline;
  }

  .data-block,
  .disclosure-card,
  .article-body pre {
    break-inside: avoid;
  }
}