@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;0,700;1,400;1,600&display=swap');


.reading-progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), #ff6b6b);
  z-index: calc(var(--z-sticky) + 10);
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

.article-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding-top: 110px;
}

.article-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transform: scale(1.05);
  transition: transform 8s ease;
}
.article-hero:hover .article-hero-img {
  transform: scale(1.0);
}

.article-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 16, 40, 0.96) 0%,
    rgba(10, 16, 40, 0.70) 40%,
    rgba(10, 16, 40, 0.25) 100%
  );
}

.article-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-bottom: var(--space-16);
}

.article-meta-top {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.article-category {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-reading-time {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.60);
  letter-spacing: 0.03em;
}

.article-hero-title {
  font-family: 'Lora', Georgia, serif;
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.18;
  letter-spacing: -0.02em;
  max-width: 820px;
  margin-bottom: var(--space-6);
}

.article-hero-excerpt {
  font-family: var(--font-body);
  font-size: clamp(var(--font-size-base), 1.5vw, var(--font-size-lg));
  color: rgba(255,255,255,0.72);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: var(--space-8);
}

.article-meta-bottom {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.15);
  flex-wrap: wrap;
}

.article-author-inline {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.article-author-avatar {
  width: 40px; height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid rgba(255,255,255,0.3);
  background: var(--color-neutral-700);
}
.article-author-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: #fff;
}
.article-author-role {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.55);
}

.article-date-sep {
  width: 1px; height: 28px;
  background: rgba(255,255,255,0.2);
}

.article-pub-date {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.03em;
}

.article-breadcrumb {
  background: var(--color-surface-section);
  border-bottom: 1px solid var(--color-border-default);
  padding-block: var(--space-3);
}
.article-breadcrumb .container {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.article-breadcrumb ol {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  flex-wrap: wrap;
}
.article-breadcrumb a {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}
.article-breadcrumb a:hover { color: var(--color-primary); }
.article-breadcrumb .bc-sep { color: var(--color-text-muted); font-size: var(--font-size-xs); }
.article-breadcrumb .bc-current { font-size: var(--font-size-xs); color: var(--color-text-secondary); font-weight: var(--font-weight-medium); }

.article-wrapper {
  background: var(--color-surface-page);
  padding-block: clamp(var(--space-12), 5vw, var(--space-20));
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: clamp(var(--space-10), 4vw, var(--space-16));
  align-items: start;
}

.article-sidebar {
  position: sticky;
  top: calc(110px + var(--space-8));
}

.toc-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}

.toc-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.toc-label::before {
  content: '';
  display: block;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.toc-list a {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding: 6px 10px;
  border-radius: var(--radius-md);
  border-left: 2px solid transparent;
  transition: all var(--transition-base);
  line-height: 1.4;
}
.toc-list a:hover,
.toc-list a.is-active {
  color: var(--color-primary);
  background: var(--color-primary-light);
  border-left-color: var(--color-primary);
}

.toc-list .toc-h3 { padding-left: 22px; font-size: var(--font-size-xs); }

.toc-share {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-default);
}
.toc-share-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.share-buttons {
  display: flex;
  gap: var(--space-2);
}
.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-default);
  color: var(--color-text-secondary);
  background: var(--color-surface-section);
  transition: all var(--transition-base);
  font-size: var(--font-size-xs);
}
.share-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.article-content {
  font-family: var(--font-body);
  font-size: clamp(var(--font-size-base), 1.2vw, var(--font-size-lg));
  line-height: 1.8;
  color: var(--color-text-primary);
  max-width: 720px;
}

.article-lead {
  font-size: clamp(var(--font-size-lg), 1.5vw, var(--font-size-xl));
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-weight: var(--font-weight-regular);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border-default);
}

.article-content h2 {
  font-family: 'Lora', Georgia, serif;
  font-size: clamp(var(--font-size-xl), 2.2vw, var(--font-size-3xl));
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-top: clamp(var(--space-12), 4vw, var(--space-16));
  margin-bottom: var(--space-5);
  padding-top: var(--space-6);
  scroll-margin-top: 140px;
}
.article-content h2::before {
  content: '';
  display: block;
  width: 40px; height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  margin-bottom: var(--space-4);
}

.article-content h3 {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-lg), 1.5vw, var(--font-size-2xl));
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1.3;
  margin-top: var(--space-10);
  margin-bottom: var(--space-3);
  scroll-margin-top: 140px;
}

.article-content p {
  margin-bottom: var(--space-5);
}

.article-content strong {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-base);
}
.article-content a:hover { color: var(--color-primary-hover); }

.article-content ul,
.article-content ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}
.article-content ul { list-style: none; padding-left: 0; }
.article-content ul li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  line-height: 1.7;
}
.article-content ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 10px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
}
.article-content ol {
  counter-reset: ol-counter;
  list-style: none;
}
.article-content ol li {
  counter-increment: ol-counter;
  position: relative;
  padding-left: var(--space-10);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}
.article-content ol li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0; top: 0;
  width: 28px; height: 28px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-display);
}

.article-content blockquote,
.article-pullquote {
  margin: clamp(var(--space-10), 4vw, var(--space-14)) 0;
  padding: var(--space-8) var(--space-8) var(--space-8) var(--space-10);
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  position: relative;
}
.article-content blockquote::before,
.article-pullquote::before {
  content: '\201C';
  position: absolute;
  top: var(--space-3);
  left: var(--space-4);
  font-family: 'Lora', Georgia, serif;
  font-size: 4rem;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.35;
}
.article-content blockquote p,
.article-pullquote p {
  font-family: 'Lora', Georgia, serif;
  font-size: clamp(var(--font-size-lg), 1.5vw, var(--font-size-xl));
  font-style: italic;
  color: var(--color-text-primary);
  line-height: 1.6;
  margin-bottom: 0;
}
.blockquote-cite {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  font-style: normal;
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}
.blockquote-cite::before { content: '— '; }

.callout {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-5);
  align-items: start;
  background: var(--color-surface-section);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin: var(--space-8) 0;
}
.callout-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.callout--tip .callout-icon   { background: #ECFDF5; }
.callout--fact .callout-icon  { background: var(--color-primary-light); }
.callout--warn .callout-icon  { background: #FFFBEB; }

.callout-title {
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}
.callout-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 0;
}

.stat-highlight-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-5);
  margin: var(--space-10) 0;
}
.stat-box {
  position: relative;
  background: linear-gradient(145deg, #0F1B3D 0%, #1B3060 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-7) var(--space-6) var(--space-6) var(--space-7);
  text-align: left;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.07);
  box-shadow:
    0 4px 8px rgba(0,0,0,0.12),
    0 16px 40px rgba(15,27,61,0.45),
    inset 0 1px 0 rgba(255,255,255,0.06);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.stat-box:hover {
  transform: translateY(-3px);
  box-shadow:
    0 8px 16px rgba(0,0,0,0.15),
    0 28px 52px rgba(15,27,61,0.5),
    inset 0 1px 0 rgba(255,255,255,0.06);
}

.stat-box::before {
  content: '';
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 3px;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-mid) 100%);
  border-radius: 0 3px 3px 0;
}

.stat-box::after {
  content: '';
  position: absolute;
  top: -32px;
  right: -24px;
  width: 110px;
  height: 110px;
  background: radial-gradient(circle, rgba(200,25,42,0.14) 0%, transparent 68%);
  pointer-events: none;
}
.stat-box-value {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-4xl), 4vw, var(--font-size-5xl));
  font-weight: var(--font-weight-extrabold);
  color: #FFFFFF;
  line-height: 1;
  letter-spacing: var(--letter-spacing-tighter);
  margin-bottom: var(--space-2);
}
.stat-box-label {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.50);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
}

.article-content figure,
.article-figure {
  margin: clamp(var(--space-10), 4vw, var(--space-14)) 0;
}
.article-figure img,
.article-content figure img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  object-fit: cover;
  display: block;
}
.article-figure figcaption,
.article-content figure figcaption {
  text-align: center;
  margin-top: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.6;
}

.figure--wide {
  margin-inline: clamp(-20px, -3vw, -48px);
}

.article-table-wrap {
  overflow-x: auto;
  margin: var(--space-8) 0;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-default);
  box-shadow: var(--shadow-card);
}
.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
.article-table th {
  background: var(--color-surface-dark);
  color: #fff;
  font-family: var(--font-display);
  font-weight: var(--font-weight-semibold);
  text-align: left;
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-size-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.article-table th:first-child { border-radius: var(--radius-xl) 0 0 0; }
.article-table th:last-child  { border-radius: 0 var(--radius-xl) 0 0; }
.article-table td {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border-default);
  color: var(--color-text-secondary);
  vertical-align: top;
  line-height: 1.6;
}
.article-table tr:hover td { background: var(--color-surface-section); }
.article-table td.td-highlight {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}
.td-check { color: #10B981; font-weight: bold; }
.td-cross  { color: #EF4444; font-weight: bold; }

.article-end-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: clamp(var(--space-12), 5vw, var(--space-16)) 0 var(--space-10);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.article-end-divider::before,
.article-end-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border-default);
}

.author-card {
  display: flex;
  gap: var(--space-6);
  background: var(--color-surface-card);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--space-8);
}
.author-card-avatar {
  width: 80px; height: 80px;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
  background: var(--color-neutral-200);
}
.author-card-name {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}
.author-card-role {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.author-card-bio {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.article-tags {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}
.article-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: var(--color-surface-section);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}
.article-tag:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.related-posts {
  background: var(--color-surface-section);
  padding-block: clamp(var(--space-12), 5vw, var(--space-20));
  border-top: 1px solid var(--color-border-default);
}

.related-posts-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: clamp(var(--space-8), 3vw, var(--space-12));
  flex-wrap: wrap;
}
.related-posts-header .section-heading { font-size: clamp(var(--font-size-2xl), 2.5vw, var(--font-size-4xl)); }

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.article-cta {
  background: linear-gradient(135deg, var(--color-neutral-900) 0%, var(--color-neutral-800) 100%);
  padding-block: clamp(var(--space-12), 5vw, var(--space-20));
  position: relative;
  overflow: hidden;
}
.article-cta::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 360px; height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,25,42,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.article-cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-8);
  align-items: center;
}
.article-cta-title {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-2xl), 2.5vw, var(--font-size-4xl));
  font-weight: var(--font-weight-bold);
  color: #fff;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}
.article-cta-body {
  font-size: var(--font-size-base);
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
  max-width: 480px;
}
.article-cta-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
  flex-shrink: 0;
  min-width: 200px;
}
.article-cta-note {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.40);
  text-align: center;
}

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .toc-card { display: none; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .article-cta-inner { grid-template-columns: 1fr; }
  .article-cta-actions { flex-direction: row; align-items: flex-start; }
}

@media (max-width: 640px) {
  .article-hero { min-height: 85vh; }
  .article-hero-title { font-size: 2rem; }
  .article-meta-bottom { gap: var(--space-4); }
  .related-grid { grid-template-columns: 1fr; }
  .author-card { flex-direction: column; gap: var(--space-4); }
  .article-cta-actions { flex-direction: column; width: 100%; }
  .article-cta-actions .btn { width: 100%; justify-content: center; }
  .stat-highlight-box { grid-template-columns: 1fr 1fr; }
}