.article-page,
.article-detail-page {
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 82% 14%, rgba(155, 107, 255, 0.14), transparent 30%),
    radial-gradient(circle at 14% 18%, rgba(61, 231, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #030613 0%, #050a1d 52%, #030613 100%);
}

.article-hero h1 {
  max-width: 880px;
}

.article-list-section,
.article-detail-section,
.article-navigation {
  padding: 0 0 82px;
}

.article-toolbar {
  position: sticky;
  top: calc(var(--header-height) + 12px);
  z-index: 8;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(150px, 0.34fr) minmax(130px, 0.28fr) auto;
  gap: 12px;
  align-items: end;
  border: 1px solid rgba(112, 224, 255, 0.18);
  border-radius: 22px;
  background: rgba(5, 10, 29, 0.88);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
  padding: 16px;
}

.article-toolbar label span {
  display: block;
  margin-bottom: 7px;
  color: var(--color-dim);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.article-toolbar input,
.article-toolbar select {
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(112, 224, 255, 0.2);
  border-radius: 14px;
  background: rgba(7, 16, 39, 0.78);
  color: var(--color-text);
  padding: 0 13px;
  outline: none;
}

.article-toolbar input:focus,
.article-toolbar select:focus {
  border-color: rgba(61, 231, 255, 0.66);
  box-shadow: 0 0 0 3px rgba(61, 231, 255, 0.13);
}

.article-summary {
  margin: 22px 0 12px;
  color: var(--color-muted);
  font-weight: 800;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.article-card,
.article-state,
.article-body-card,
.article-side-card {
  border: 1px solid rgba(112, 224, 255, 0.17);
  border-radius: 22px;
  background:
    linear-gradient(rgba(112, 224, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(112, 224, 255, 0.035) 1px, transparent 1px),
    rgba(7, 16, 39, 0.72);
  background-size: 28px 28px, 28px 28px, auto;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.article-card {
  display: flex;
  min-height: 320px;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
  color: inherit;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.article-card > :not(.article-card__image) {
  margin-inline: 20px;
}

.article-card__image {
  position: relative;
  aspect-ratio: 16 / 9;
  margin: 0 0 18px;
  overflow: hidden;
  background: rgba(3, 9, 24, 0.7);
}

.article-card__image[hidden],
.article-hero-image[hidden],
.article-inline-image[hidden] {
  display: none;
}

.article-card__image img,
.article-hero-image img,
.article-inline-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.article-card__image figcaption,
.article-hero-image figcaption,
.article-inline-image figcaption {
  color: var(--color-dim);
  font-size: 0.78rem;
  line-height: 1.45;
}

.article-card__image figcaption {
  position: absolute;
  right: 10px;
  bottom: 8px;
  max-width: calc(100% - 20px);
  border-radius: 999px;
  background: rgba(3, 9, 24, 0.72);
  padding: 4px 8px;
}

.article-card:hover,
.article-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(61, 231, 255, 0.42);
  background-color: rgba(10, 24, 55, 0.78);
}

.article-card__head,
.article-card__footer,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.article-card__head {
  justify-content: space-between;
}

.article-card__head span,
.article-meta span,
.article-tag,
.article-entity-link span {
  border: 1px solid rgba(112, 224, 255, 0.18);
  border-radius: 999px;
  background: rgba(61, 231, 255, 0.06);
  color: #dce8ff;
  padding: 5px 8px;
  font-size: 0.74rem;
  font-weight: 900;
}

.article-card__head em,
.article-card__footer strong,
.article-source-link span,
.article-entity-link em {
  color: var(--color-dim);
  font-size: 0.82rem;
  font-style: normal;
}

.article-card h2 {
  margin-top: 18px;
  color: var(--color-text);
  font-size: 1.28rem;
}

.article-card p {
  color: var(--color-muted);
  line-height: 1.65;
}

.article-card__subtitle {
  color: #dce8ff !important;
  font-weight: 800;
}

.article-card__footer {
  justify-content: space-between;
  margin-top: auto;
  padding: 18px 0 20px;
}

.article-card__footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.article-card__footer div span {
  color: var(--color-cyan);
  font-size: 0.76rem;
}

.article-card--skeleton,
.article-loading {
  min-height: 220px;
  background: linear-gradient(90deg, rgba(255,255,255,0.04), rgba(61,231,255,0.08), rgba(255,255,255,0.04));
  background-size: 240% 100%;
  animation: articleSkeleton 1.4s ease-in-out infinite;
}

.article-loading--detail {
  display: grid;
  gap: 12px;
  min-height: auto;
  background: none;
  animation: none;
}

.article-loading--detail i {
  display: block;
  height: 72px;
  border-radius: 16px;
  background: linear-gradient(90deg, rgba(255,255,255,0.04), rgba(61,231,255,0.08), rgba(255,255,255,0.04));
  background-size: 240% 100%;
  animation: articleSkeleton 1.4s ease-in-out infinite;
}

.article-loading--detail span {
  color: var(--color-muted);
}

.article-state {
  grid-column: 1 / -1;
  padding: 28px;
}

.article-detail-hero {
  position: relative;
  padding: calc(var(--header-height) + 42px) 0 42px;
}

.article-detail-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(rgba(61, 231, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 231, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000 0%, #000 70%, transparent 100%);
  pointer-events: none;
}

.article-detail-hero .detail-container {
  position: relative;
  z-index: 1;
}

.article-detail-hero h1 {
  max-width: 800px;
  margin-top: 14px;
  color: var(--color-text);
  font-size: clamp(34px, 3.2vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.article-subtitle {
  max-width: 800px;
  margin-top: 18px;
  color: var(--color-muted);
  font-size: 20px;
  font-weight: 400;
  line-height: 1.75;
}

.article-hero-image {
  max-width: 920px;
  margin-top: 28px;
}

.article-hero-image figure {
  margin: 0;
}

.article-hero-image img {
  max-height: 520px;
  border: 1px solid rgba(112, 224, 255, 0.18);
  border-radius: 24px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.article-hero-image figcaption,
.article-inline-image figcaption {
  margin-top: 9px;
}

.article-meta {
  margin-top: 22px;
}

.article-detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 800px) minmax(280px, 360px);
  gap: 24px;
  align-items: start;
}

.article-body-card,
.article-side-card {
  padding: 24px;
}

.article-summary-box {
  margin: 0 0 24px;
  border-left: 3px solid rgba(61, 231, 255, 0.68);
  color: #dce8ff;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.75;
  padding-left: 16px;
}

.article-body {
  color: var(--color-muted);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.85;
  overflow-wrap: anywhere;
}

.article-body p + p {
  margin-top: 20px;
}

.article-body h2,
.article-body h3 {
  margin: 42px 0 16px;
  color: var(--color-text);
  line-height: 1.25;
}

.article-body h2 {
  font-size: 27px;
  font-weight: 650;
}

.article-body h3 {
  font-size: 22px;
  font-weight: 650;
}

.article-body li {
  font-size: 17px;
  font-weight: 400;
}

.article-body ul,
.article-body ol,
.article-body dl,
.article-body blockquote {
  margin: 26px 0;
}

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

.article-body blockquote {
  border-left: 3px solid rgba(155, 107, 255, 0.72);
  border-radius: 0 16px 16px 0;
  background: rgba(155, 107, 255, 0.08);
  color: #dce8ff;
  font-size: 18px;
  font-weight: 400;
  padding: 16px 18px;
}

.article-inline-image {
  margin: 34px 0;
}

.article-inline-image img {
  max-height: 460px;
  border: 1px solid rgba(112, 224, 255, 0.14);
  border-radius: 20px;
}

.article-body cite {
  display: block;
  margin-top: 10px;
  color: var(--color-dim);
  font-size: 0.86rem;
  font-style: normal;
}

.article-body a,
.article-source-reference a {
  color: var(--color-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body dl {
  display: grid;
  grid-template-columns: minmax(120px, 0.38fr) minmax(0, 1fr);
  gap: 10px 14px;
  border: 1px solid rgba(112, 224, 255, 0.13);
  border-radius: 16px;
  background: rgba(3, 9, 24, 0.38);
  padding: 16px;
}

.article-body dt {
  color: #dce8ff;
  font-weight: 900;
}

.article-body dd {
  margin: 0;
}

.article-source-reference {
  border: 1px solid rgba(112, 224, 255, 0.14);
  border-radius: 16px;
  background: rgba(61, 231, 255, 0.06);
  padding: 13px 15px;
  font-size: 15px;
}

.article-side {
  display: grid;
  gap: 14px;
}

.article-side-card h2 {
  margin: 0 0 14px;
  color: var(--color-text);
  font-size: 1rem;
}

.article-entity-link,
.article-source-link {
  display: block;
  border: 1px solid rgba(112, 224, 255, 0.13);
  border-radius: 14px;
  background: rgba(3, 9, 24, 0.44);
  color: inherit;
  padding: 13px;
}

.article-entity-link + .article-entity-link,
.article-source-link + .article-source-link {
  margin-top: 9px;
}

.article-entity-link strong,
.article-source-link strong {
  display: block;
  margin-top: 7px;
  color: var(--color-text);
}

.article-entity-link--context small {
  display: block;
  margin-top: 4px;
  color: var(--color-dim);
  font-size: 0.78rem;
}

.article-empty {
  color: var(--color-muted);
}

.article-state h2,
.article-empty {
  line-height: 1.55;
}

.article-navigation .detail-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@keyframes articleSkeleton {
  from { background-position: 120% 0; }
  to { background-position: -120% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .article-card,
  .article-card--skeleton,
  .article-loading,
  .article-loading--detail i,
  .knowledge-skeleton i {
    animation: none;
    transition: none;
  }
}

@media (max-width: 980px) {
  .article-toolbar,
  .article-detail-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .article-list-section,
  .article-detail-section,
  .article-navigation {
    padding-bottom: 54px;
  }

  .article-toolbar {
    position: static;
    border-radius: 18px;
  }

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

  .article-detail-hero {
    padding-top: calc(var(--header-height) + 26px);
  }

  .article-detail-hero h1 {
    font-size: clamp(30px, 9vw, 36px);
  }

  .article-subtitle,
  .article-summary-box {
    font-size: 18px;
  }

  .article-body-card,
  .article-side-card {
    border-radius: 18px;
    padding: 18px;
  }

  .article-body dl {
    grid-template-columns: 1fr;
  }

  .article-body {
    font-size: 16px;
  }

  .article-body h2 {
    font-size: 24px;
  }

  .article-body h3 {
    font-size: 20px;
  }

  .article-hero-image img,
  .article-inline-image img {
    border-radius: 16px;
  }
}