.page-news {
  --news-gold: #E8B33A;
  --news-gold-dark: #A67C2E;
  --news-crimson: #7A2E2E;
  --news-purple: #9D4DFF;
  --news-cyan: #00E5FF;
  --news-obsidian: #111827;
  --news-white: #F5E9D8;
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(1200px 480px at 88% -4%, rgba(157, 77, 255, 0.16), transparent 60%),
    radial-gradient(1000px 420px at 12% 28%, rgba(122, 46, 46, 0.28), transparent 55%),
    var(--color-navy);
  color: var(--news-white);
}

.page-news .news-hero {
  position: relative;
  display: grid;
  gap: 28px;
  padding: 28px 18px 12px;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72%;
  height: 70%;
  background: linear-gradient(135deg, rgba(122, 46, 46, 0.55), rgba(122, 46, 46, 0.04));
  clip-path: polygon(0 0, 100% 0, 72% 100%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-news .news-hero > * {
  position: relative;
  z-index: 1;
}

.page-news .news-hero-copy {
  display: grid;
  gap: 14px;
  align-content: center;
}

.page-news .section-label {
  display: inline-block;
  width: fit-content;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--news-gold);
  border: 1px solid rgba(232, 179, 58, 0.4);
  background: rgba(232, 179, 58, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
}

.page-news .page-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2.1rem, 6vw, 4.2rem);
  line-height: 1.14;
  color: var(--news-white);
  letter-spacing: 0.01em;
  margin: 0;
  text-shadow: 0 2px 24px rgba(232, 179, 58, 0.18);
}

.page-news .page-intro {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-gray);
  max-width: 34em;
  margin: 0;
}

.page-news .hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .badge {
  font-size: 12px;
  font-weight: 500;
}

.page-news .hero-feature {
  background: rgba(17, 24, 39, 0.74);
  border: 1px solid rgba(232, 179, 58, 0.3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  max-width: 780px;
  backdrop-filter: blur(12px);
}

.page-news .hero-feature-media img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.page-news .hero-feature-body {
  padding: 20px 20px 24px;
}

.page-news .card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .version-tag,
.page-news .read-time {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--color-gray);
}

.page-news .version-tag {
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 3px 10px;
  border-radius: 999px;
}

.page-news .hero-feature h2,
.page-news .article-card h3,
.page-news .update-item h3 {
  font-family: var(--font-heading);
  font-weight: 900;
  color: var(--news-white);
  line-height: 1.45;
  margin: 10px 0 8px;
}

.page-news .hero-feature h2 {
  font-size: clamp(1.2rem, 2.6vw, 1.65rem);
}

.page-news .hero-feature p,
.page-news .article-card p,
.page-news .update-item p {
  color: var(--color-gray);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 12px;
}

.page-news .btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-news .news-body {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 16px 18px 72px;
  display: grid;
  gap: 32px;
}

.page-news .news-sidebar {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.82), rgba(13, 27, 42, 0.78));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-news .sidebar-block {
  display: grid;
  gap: 12px;
}

.page-news .sidebar-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--news-gold);
  margin: 0;
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .filter-btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--news-white);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1;
  padding: 10px 15px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.page-news .filter-btn:hover {
  border-color: var(--news-gold);
  color: var(--news-gold);
}

.page-news .filter-btn.is-active {
  background: var(--news-gold);
  border-color: var(--news-gold);
  color: var(--color-navy-deep);
  font-weight: 700;
}

.page-news .sidebar-anchor {
  display: grid;
  gap: 3px;
}

.page-news .sidebar-anchor-title {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 4px;
}

.page-news .sidebar-anchor a {
  color: var(--news-white);
  text-decoration: none;
  font-size: 14px;
  padding: 7px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color var(--transition), padding-left var(--transition);
}

.page-news .sidebar-anchor a:hover {
  color: var(--news-gold);
  padding-left: 6px;
}

.page-news .sidebar-icon {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.page-news .sidebar-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-news .figure-caption {
  font-size: 12px;
  color: var(--color-gray);
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.3);
}

.page-news .sidebar-note-text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-gray);
  margin: 0;
}

.page-news .sidebar-links {
  list-style: none;
  display: grid;
  gap: 6px;
  padding: 0;
  margin: 0;
}

.page-news .sidebar-links a {
  color: var(--news-cyan);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color var(--transition);
}

.page-news .sidebar-links a::before {
  content: "→";
  color: var(--news-gold);
  margin-right: 6px;
}

.page-news .sidebar-links a:hover {
  color: var(--news-gold);
}

.page-news .news-stream {
  display: grid;
  gap: 40px;
  min-width: 0;
}

.page-news .stream-section {
  display: grid;
  gap: 18px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-news .section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(232, 179, 58, 0.22);
}

.page-news .section-index {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--news-purple);
  letter-spacing: 0.08em;
}

.page-news .section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  color: var(--news-white);
  margin: 0;
}

.page-news .article-grid {
  display: grid;
  gap: 20px;
}

.page-news .article-card {
  background: var(--news-obsidian);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-news .article-card:hover {
  border-color: rgba(232, 179, 58, 0.72);
  transform: translateY(-4px);
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.36);
}

.page-news .article-card-media img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.page-news .article-card-body {
  padding: 18px;
}

.page-news .article-card h3 {
  font-size: 1.12rem;
}

.page-news .article-expand {
  margin-top: 12px;
  border-top: 1px dashed rgba(255, 255, 255, 0.14);
  padding-top: 8px;
}

.page-news .article-expand summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--news-cyan);
  font-size: 13px;
  font-weight: 500;
  transition: color var(--transition);
}

.page-news .article-expand summary::-webkit-details-marker,
.page-news .article-expand summary::marker {
  display: none;
  content: "";
}

.page-news .article-expand summary::after {
  content: "＋";
  font-family: var(--font-data);
  color: var(--news-gold);
  transition: transform var(--transition);
}

.page-news .article-expand[open] summary::after {
  content: "−";
}

.page-news .article-expand summary:hover {
  color: var(--news-gold);
}

.page-news .expand-body {
  padding: 10px 0 4px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(245, 233, 216, 0.86);
}

.page-news .update-list {
  display: grid;
  gap: 16px;
}

.page-news .update-item {
  background: var(--news-obsidian);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-news .update-item:hover {
  border-color: rgba(232, 179, 58, 0.72);
  transform: translateY(-3px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.34);
}

.page-news .update-item {
  display: grid;
  gap: 14px;
}

.page-news .update-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(232, 179, 58, 0.2), rgba(157, 77, 255, 0.12));
  border: 1px solid rgba(232, 179, 58, 0.3);
  color: var(--news-gold);
}

.page-news .update-body {
  min-width: 0;
}

.page-news .update-item h3 {
  font-size: 1.12rem;
}

.page-news .pad-section {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

@media (max-width: 599px) {
  .page-news .article-card-media img {
    height: auto;
  }
}

@media (min-width: 600px) {
  .page-news .filter-bar-vertical {
    flex-direction: column;
    align-items: stretch;
  }

  .page-news .filter-bar-vertical .filter-btn {
    text-align: left;
    border-radius: var(--radius-sm);
  }

  .page-news .update-item {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 18px;
    padding: 24px;
  }
}

@media (min-width: 760px) {
  .page-news .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-news .article-card-wide {
    grid-column: span 2;
  }

  .page-news .hero-feature-body {
    padding: 26px 28px 30px;
  }

  .page-news .article-card-body {
    padding: 22px;
  }
}

@media (min-width: 1024px) {
  .page-news .news-hero {
    grid-template-columns: minmax(260px, 0.95fr) minmax(0, 1.3fr);
    align-items: center;
    gap: clamp(32px, 5vw, 72px);
    padding: clamp(48px, 7vw, 96px) clamp(24px, 5vw, 72px) 40px;
  }

  .page-news .news-hero::before {
    width: 56%;
    height: 88%;
  }

  .page-news .news-body {
    padding: 36px 24px 96px;
    grid-template-columns: 252px minmax(0, 1fr);
    align-items: start;
    gap: 48px;
  }

  .page-news .news-sidebar {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}