#progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  z-index: 9999;
  background: linear-gradient(90deg, var(--accent-gold-dark), var(--accent-gold), var(--accent-gold-light));
  box-shadow: 0 0 10px var(--accent-gold-glow);
  transition: width 0.1s linear;
}

.article-header {
  padding: calc(80px + 52px) 0 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.article-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 140%;
  height: 100%;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(200, 165, 92, 0.16), transparent 70%);
  pointer-events: none;
}

.article-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 0.82rem;
  color: var(--text-muted);
  position: relative;
}

.article-breadcrumb a {
  color: var(--text-muted);
}

.article-breadcrumb a:hover {
  color: var(--accent-gold);
}

.article-meta-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  position: relative;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}

.meta-pill.category {
  background: var(--accent-gold-glow);
  border: 1px solid var(--border-subtle);
  color: var(--accent-gold);
}

.meta-pill.date,
.meta-pill.readtime {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
}

.article-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.2;
  margin: 0 auto 24px;
  max-width: 900px;
  position: relative;
}

.article-excerpt {
  max-width: 720px;
  margin: 0 auto 14px;
  color: var(--text-secondary);
  line-height: 1.85;
  font-size: 1.08rem;
  position: relative;
}

.article-hero-image {
  max-width: 1120px;
  margin: 0 auto 60px;
  padding: 0 var(--container-padding);
}

.hero-img-wrap {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border-card);
  position: relative;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

.hero-img-wrap img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  display: block;
}

.hero-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 15, 0.6) 0%, transparent 55%);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 56px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  align-items: start;
}

.article-body-section {
  padding-top: 0;
  padding-bottom: 44px;
}

.article-related-section {
  padding: 0 0 var(--section-padding);
}

.article-related-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.article-layout > * {
  min-width: 0;
}

.article-content {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.9;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.article-content h2,
.article-content h3,
.article-content h4 {
  color: var(--text-primary);
  font-family: var(--font-display);
  margin-top: 42px;
  margin-bottom: 16px;
  scroll-margin-top: 110px;
}

.article-content h2 {
  font-size: 1.7rem;
  border-bottom: 1px solid var(--border-card);
  padding-bottom: 12px;
}

.article-content h3 {
  font-size: 1.28rem;
}

.article-content h4 {
  font-size: 1.05rem;
}

.article-content p {
  margin-bottom: 18px;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.article-content ul,
.article-content ol {
  margin: 18px 0;
  padding-left: 22px;
}

.article-content blockquote {
  margin: 30px 0;
  padding: 24px 28px;
  border-left: 3px solid var(--accent-gold);
  border-radius: 0 14px 14px 0;
  background: var(--bg-card);
  color: var(--text-primary);
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--border-card);
  margin: 18px 0;
}

.article-content a {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.article-content table {
  width: 100%;
  max-width: 100%;
  display: block;
  overflow-x: auto;
  margin: 20px 0;
  border-collapse: collapse;
}

.article-content th,
.article-content td {
  white-space: normal;
  word-break: break-word;
}

.article-content pre {
  padding: 20px;
  border-radius: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-card);
  overflow-x: auto;
  margin: 24px 0;
}

.article-content code {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 0.86rem;
}

.article-tags {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 42px;
  padding-top: 28px;
  border-top: 1px solid var(--border-card);
}

.article-tags-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.article-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.article-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
}

.article-source {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border-card);
}

.article-source-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.article-source-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  color: var(--accent-gold);
  text-decoration: none;
  font-size: 0.84rem;
  overflow-wrap: anywhere;
  word-break: break-all;
}

.article-source-link:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold-light);
}

.article-share {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.article-share span {
  font-size: 0.86rem;
  color: var(--text-secondary);
  margin-right: 2px;
}

.share-btn {
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), background-color var(--transition-fast);
}

.share-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-1px);
}

.share-btn:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

.share-btn.is-success {
  border-color: rgba(78, 181, 110, 0.7);
  color: #4eb56e;
}

.share-btn.is-error {
  border-color: rgba(219, 90, 90, 0.7);
  color: #db5a5a;
}

.article-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.article-nav-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 22px;
  border: 1px solid var(--border-card);
  border-radius: 20px;
  background: var(--bg-card);
  text-decoration: none;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
  min-height: 132px;
  justify-content: center;
}

.article-nav-item:hover {
  border-color: var(--border-subtle);
  transform: translateY(-1px);
}

.article-nav-item.next {
  text-align: right;
  align-items: flex-end;
}

.article-nav-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-gold);
  letter-spacing: 0.02em;
}

.article-nav-title {
  font-family: var(--font-display);
  font-size: clamp(0.92rem, 1.25vw, 1.08rem);
  line-height: 1.3;
  font-weight: 600;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-articles {
  margin-top: 0;
  padding-top: 48px;
  border-top: 1px solid var(--border-card);
}

.related-articles h3 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-size: 1.45rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.related-card {
  border: 1px solid var(--border-card);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-card);
  transition: all var(--transition-fast);
}

.related-card:hover {
  border-color: var(--border-subtle);
  transform: translateY(-3px);
}

.related-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.related-card-body {
  padding: 14px;
}

.related-card-body h4 {
  font-size: 0.96rem;
  line-height: 1.5;
  margin: 0 0 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card-body span {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.article-toc {
  position: sticky;
  top: 100px;
  border: 1px solid var(--border-card);
  border-radius: 16px;
  background: var(--bg-card);
  padding: 24px;
}

.article-toc h4 {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-card);
  font-size: 1rem;
  font-family: var(--font-display);
}

.article-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.article-toc a {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: block;
  padding-left: 12px;
  border-left: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.article-toc a:hover {
  color: var(--accent-gold);
}

.article-toc a.active {
  color: var(--accent-gold);
  border-left-color: var(--accent-gold);
}

@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .article-toc {
    position: static;
  }

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

  .hero-img-wrap img {
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 768px) {
  .article-header {
    padding-bottom: 18px;
  }

  .article-excerpt {
    font-size: 0.98rem;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .article-tags {
    margin-top: 34px;
    padding-top: 22px;
    gap: 10px;
  }

  .article-tags-title {
    font-size: 0.94rem;
  }

  .article-tags-list {
    gap: 8px;
  }

  .article-source {
    margin-top: 16px;
    padding-top: 14px;
    gap: 10px;
  }

  .article-source-title {
    font-size: 0.94rem;
  }

  .article-source-link {
    width: 100%;
    border-radius: 12px;
  }

  .article-share {
    gap: 8px;
  }

  .share-btn {
    height: 36px;
    padding: 0 10px;
    font-size: 0.74rem;
  }

  .article-nav {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .article-nav-item {
    min-height: auto;
    padding: 16px 18px;
  }

  .article-nav-item.next {
    text-align: left;
    align-items: flex-start;
  }

  .article-nav-label {
    font-size: 0.74rem;
  }

  .article-nav-title {
    font-size: 0.98rem;
  }
}