.reading-progress {
  position: fixed;
  top: 64px;
  left: 0;
  z-index: 999;
  width: 100%;
  height: 3px;
  background: transparent;
}
.reading-progress__bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--p), var(--p2));
  box-shadow: 0 0 18px rgba(109, 94, 252, .45);
}
.article-detail {
  position: relative;
  z-index: 1;
}
.article-detail-hero {
  padding: 64px clamp(20px, 5vw, 80px) 40px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(109, 94, 252, .08), transparent);
}
.article-detail-hero__inner {
  max-width: 1140px;
  margin: 0 auto;
}
.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 22px;
  color: var(--gray2);
  font-family: var(--mono);
  font-size: .68rem;
}
.article-breadcrumb a {
  color: var(--gray);
}
.article-breadcrumb a:hover {
  color: var(--p2);
}
.article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--p3);
  background: rgba(109, 94, 252, .1);
  border: 1px solid rgba(109, 94, 252, .28);
  border-radius: 999px;
  padding: 5px 13px;
  font-family: var(--mono);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.article-detail-title {
  max-width: 900px;
  margin: 18px 0 16px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.06;
  letter-spacing: -.04em;
  font-weight: 800;
}
.article-detail-summary {
  max-width: 760px;
  color: var(--gray);
  font-size: 1rem;
  line-height: 1.8;
  margin: 0 0 24px;
}
.article-detail-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--gray);
  font-size: .82rem;
}
.article-detail-meta__author {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.article-detail-meta__author img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border2);
}
.meta-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gray2);
}
.article-detail-layout {
  max-width: 1140px;
  margin: 0 auto;
  padding: 34px clamp(20px, 5vw, 80px) 80px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 34px;
  align-items: start;
}
.article-detail-cover {
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  background: var(--card);
  margin-bottom: 28px;
}
.article-detail-cover img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}
.article-prose {
  color: #d8d7e8;
  font-size: 1rem;
}
.article-prose section {
  scroll-margin-top: 96px;
}
.article-prose h2,
.article-prose h3,
.article-prose h4 {
  color: var(--white);
  letter-spacing: -.025em;
}
.article-prose h2 {
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  margin: 40px 0 14px;
}
.article-prose h3 {
  font-size: 1.25rem;
  margin: 28px 0 12px;
}
.article-prose p,
.article-prose li {
  color: #d5d3e7;
  line-height: 1.85;
}
.article-prose ul,
.article-prose ol {
  padding-left: 1.3rem;
}
.article-prose a {
  color: var(--p3);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-prose blockquote {
  margin: 24px 0;
  border-left: 3px solid var(--p);
  background: rgba(109, 94, 252, .08);
  color: var(--p3);
  border-radius: 0 14px 14px 0;
  padding: 18px 22px;
}
.article-prose img {
  border-radius: 16px;
  border: 1px solid var(--border);
  margin: 22px 0;
}
.article-video {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 16px;
  margin: 24px 0;
  padding-bottom: 56.25%;
  height: 0;
  background: #0d0d13;
}
.article-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.code-block {
  position: relative;
  margin: 24px 0;
}
.code-copy {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--gray);
  border-radius: 8px;
  padding: 5px 10px;
  font-family: var(--mono);
  font-size: .68rem;
}
.code-copy:hover {
  border-color: var(--p);
  color: var(--p2);
}
.article-prose pre {
  background: #0d0d13;
  color: #f2f2ff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 44px 18px 18px;
  overflow: auto;
}
.article-detail-sidebar {
  position: sticky;
  top: 86px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.article-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}
.article-panel__title {
  color: var(--gray2);
  font-family: var(--mono);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 14px;
}
.toc-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.toc-list a {
  display: block;
  border-radius: 8px;
  padding: 7px 9px;
  color: var(--gray);
  font-size: .8rem;
  line-height: 1.4;
}
.toc-list a:hover,
.toc-list a.active {
  color: var(--p2);
  background: rgba(109, 94, 252, .1);
}
.article-info-list {
  display: grid;
  gap: 10px;
}
.article-info-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--gray);
  font-size: .82rem;
}
.article-info-item strong {
  color: var(--white);
  font-weight: 600;
}
.article-share {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.article-share a,
.article-share button {
  min-height: 38px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--gray);
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: .68rem;
}
.article-share a:hover,
.article-share button:hover {
  border-color: var(--p);
  color: var(--p2);
}
.author-card {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 14px;
  align-items: center;
  margin-top: 34px;
}
.author-card img {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--p);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
@media (max-width: 980px) {
  .article-detail-layout {
    grid-template-columns: 1fr;
  }
  .article-detail-sidebar {
    position: static;
  }
}
@media (max-width: 640px) {
  .article-detail-meta {
    gap: 9px;
  }
  .meta-dot {
    display: none;
  }
  .article-detail-cover img {
    aspect-ratio: 16 / 10;
  }
  .article-share {
    grid-template-columns: 1fr;
  }
}