.page-news {
  --news-gold-line: rgba(var(--color-gold-rgb), 0.28);
  --news-panel-glow: linear-gradient(145deg, rgba(var(--color-ink-soft-rgb), 0.92), rgba(var(--color-ink-rgb), 0.78));
  background:
    radial-gradient(880px 420px at 82% -4%, rgba(var(--color-blue-rgb), 0.34), transparent 62%),
    radial-gradient(680px 300px at 4% 30%, rgba(var(--color-crimson-rgb), 0.1), transparent 60%);
}

.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 30px 0 6px;
  font-size: 13px;
  color: var(--color-silver);
}

.page-news .breadcrumb a {
  color: var(--color-gold-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 300ms var(--ease-out), color 300ms var(--ease-out);
}

.page-news .breadcrumb a:hover {
  border-color: rgba(var(--color-gold-rgb), 0.5);
  color: var(--color-text-bright);
}

.page-news .breadcrumb__sep {
  color: rgba(var(--color-silver-rgb), 0.6);
}

.page-news .observe-hero {
  display: grid;
  gap: 28px;
  padding: 44px 0 36px;
}

.page-news .observe-hero__head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.page-news .observe-hero__lead {
  max-width: 620px;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(var(--color-text-rgb), 0.82);
  margin: 0;
  border-left: 2px solid var(--news-gold-line);
  padding-left: 22px;
}

.page-news .observe-hero__side {
  align-self: end;
  justify-self: start;
}

.page-news .side-note {
  writing-mode: vertical-rl;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--color-silver);
  border-right: 1px solid var(--news-gold-line);
  padding-right: 12px;
  min-height: 168px;
}

.page-news .section-head {
  margin-bottom: 30px;
}

.page-news .section-head--light {
  margin-bottom: 26px;
}

.page-news .section-head .overline-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-gold);
}

.page-news .section-title {
  margin: 0 0 8px;
  color: var(--color-text-bright);
  letter-spacing: 0.02em;
}

.page-news .note-text {
  margin: 0;
  color: var(--color-silver);
  font-size: 14px;
  line-height: 1.6;
}

.page-news .latest-layout {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-news .latest-cards {
  display: grid;
  gap: 16px;
}

.page-news .entry-card {
  position: relative;
  background: var(--news-panel-glow);
  border: 1px solid rgba(var(--color-gold-rgb), 0.16);
  border-radius: 18px;
  padding: 22px 22px 18px;
  box-shadow: 0 16px 40px rgba(var(--color-ink-rgb), 0.3);
}

.page-news .entry-card--fix {
  border-left: 3px solid var(--color-crimson);
}

.page-news .entry-card--feat {
  border-left: 3px solid var(--color-gold);
}

.page-news .entry-card--perf {
  border-left: 3px solid var(--color-blue-soft);
}

.page-news .entry-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-news .entry-card__index {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(var(--color-silver-rgb), 0.8);
  letter-spacing: 0.08em;
}

.page-news .entry-card__desc {
  margin: 10px 0 12px;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(var(--color-text-rgb), 0.78);
}

.page-news .entry-card h3.card-title {
  margin: 0;
  font-size: 19px;
  line-height: 1.35;
  color: var(--color-text-bright);
  font-family: var(--font-serif);
}

.page-news .entry-card summary {
  cursor: pointer;
  color: var(--color-gold-light);
  font-size: 14px;
}

.page-news .fold__body {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(var(--color-ink-rgb), 0.5);
  border: 1px solid rgba(var(--color-gold-rgb), 0.12);
}

.page-news .fold__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(var(--color-text-rgb), 0.82);
}

.page-news .latest-figure {
  margin: 0;
}

.page-news .latest-figure img {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 18px;
  border: 1px solid rgba(var(--color-gold-rgb), 0.22);
  box-shadow: 0 24px 60px rgba(var(--color-ink-rgb), 0.5);
  margin: 0 auto;
}

.page-news .latest-figure figcaption {
  margin-top: 10px;
  text-align: center;
  font-size: 13px;
}

.page-news .v3-section {
  margin-top: 24px;
  padding: 40px 0;
  background:
    radial-gradient(560px 280px at 12% 12%, rgba(var(--color-blue-rgb), 0.26), transparent 66%),
    linear-gradient(180deg, rgba(var(--color-ink-soft-rgb), 0.7), rgba(var(--color-ink-rgb), 0.3));
  border-top: 1px solid var(--news-gold-line);
  border-bottom: 1px solid var(--news-gold-line);
}

.page-news .v3-inner {
  display: grid;
  gap: 30px;
}

.page-news .v3-grid {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-news .v3-visual {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(var(--color-gold-rgb), 0.2);
}

.page-news .v3-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 18px;
}

.page-news .v3-fold-list {
  display: grid;
  gap: 12px;
}

.page-news .v3-fold {
  background: rgba(var(--color-ink-rgb), 0.58);
  border: 1px solid rgba(var(--color-gold-rgb), 0.16);
  border-radius: 14px;
  padding: 16px 18px;
}

.page-news .v3-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  color: var(--color-text-bright);
  font-size: 16px;
  font-weight: 600;
  list-style: none;
}

.page-news .v3-fold summary::-webkit-details-marker {
  display: none;
}

.page-news .v3-fold summary::after {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--news-gold-line);
  border-radius: 50%;
  color: var(--color-gold);
  font-size: 18px;
  line-height: 1;
  transition: transform 400ms var(--ease-out), border-color 300ms var(--ease-out);
}

.page-news .v3-fold[open] summary::after {
  transform: rotate(45deg);
  border-color: var(--color-gold);
}

.page-news .v3-links {
  border-left: 2px solid var(--news-gold-line);
  padding-left: 18px;
}

.page-news .v3-links a {
  color: var(--color-gold-light);
}

.page-news .filter-section {
  padding: 52px 0 12px;
}

.page-news .filter-layout {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-news .filter-visual {
  margin: 0;
}

.page-news .filter-visual img {
  display: block;
  width: 100%;
  max-width: 240px;
  height: auto;
  border-radius: 18px;
  border: 1px solid rgba(var(--color-gold-rgb), 0.18);
}

.page-news .filter-content {
  display: grid;
  gap: 18px;
}

.page-news .filter-design {
  position: relative;
  scroll-margin-top: 150px;
}

.page-news .filter-stub {
  position: absolute;
  width: 0;
  height: 0;
  pointer-events: none;
}

.page-news .filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-news .filter-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid rgba(var(--color-gold-rgb), 0.24);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  font-size: 14px;
  text-decoration: none;
  background: rgba(var(--color-ink-soft-rgb), 0.5);
  transition: border-color 300ms var(--ease-out), background 300ms var(--ease-out), color 300ms var(--ease-out);
}

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

.page-news .filter-entries {
  display: grid;
  gap: 10px;
}

.page-news .index-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(var(--color-text-rgb), 0.03);
  border: 1px solid rgba(var(--color-text-rgb), 0.05);
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.45;
  color: rgba(var(--color-text-rgb), 0.86);
  transition: background 300ms var(--ease-out), border-color 300ms var(--ease-out);
}

.page-news .index-item::before {
  content: "";
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-silver);
}

.page-news .index-item[data-cat="feature"]::before {
  background: var(--color-gold);
}

.page-news .index-item[data-cat="fix"]::before {
  background: var(--color-crimson);
}

.page-news .index-item[data-cat="performance"]::before {
  background: var(--color-blue-soft);
}

.page-news .index-item[data-cat="security"]::before {
  background: var(--color-gold-light);
}

.page-news .index-item:hover {
  background: rgba(var(--color-blue-rgb), 0.18);
  border-color: rgba(var(--color-gold-rgb), 0.28);
}

.page-news .filter-design .filter-stub#filter-feature:target ~ .filter-entries .index-item:not([data-cat="feature"]),
.page-news .filter-design .filter-stub#filter-fix:target ~ .filter-entries .index-item:not([data-cat="fix"]),
.page-news .filter-design .filter-stub#filter-performance:target ~ .filter-entries .index-item:not([data-cat="performance"]),
.page-news .filter-design .filter-stub#filter-security:target ~ .filter-entries .index-item:not([data-cat="security"]) {
  display: none;
}

.page-news .archive-section {
  margin-top: 40px;
  padding: 44px 0 56px;
}

.page-news .archive-track {
  position: relative;
  margin: 28px 0 22px;
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid rgba(var(--color-gold-rgb), 0.18);
  background: rgba(var(--color-ink-soft-rgb), 0.55);
}

.page-news .archive-track__bg {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
  clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
  opacity: 0.4;
}

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

.page-news .archive-timeline {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 28px 20px 22px;
}

.page-news .archive-node {
  position: relative;
  padding: 0 0 18px 26px;
}

.page-news .archive-node:last-child {
  padding-bottom: 0;
}

.page-news .archive-node::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 12px;
  bottom: 2px;
  border-left: 1px dashed var(--color-gold);
}

.page-news .archive-node:last-child::before {
  border-left-color: transparent;
}

.page-news .archive-node::after {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-ink);
  border: 2px solid var(--color-gold);
  box-shadow: 0 0 0 4px rgba(var(--color-gold-rgb), 0.12);
}

.page-news .archive-node details summary {
  list-style: none;
  cursor: pointer;
}

.page-news .archive-node details summary::-webkit-details-marker {
  display: none;
}

.page-news .archive-fold {
  background: rgba(var(--color-ink-rgb), 0.58);
  border: 1px solid rgba(var(--color-gold-rgb), 0.14);
  border-radius: 14px;
  padding: 14px 16px;
}

.page-news .archive-fold summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-news .archive-node__period {
  color: var(--color-text-bright);
  font-size: 15px;
  font-weight: 600;
}

.page-news .archive-node__count {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(var(--color-crimson-rgb), 0.18);
  color: var(--color-crimson-soft);
  font-size: 12px;
  letter-spacing: 0.04em;
  font-family: var(--font-mono);
}

.page-news .archive-note {
  border-left: 2px solid var(--news-gold-line);
  padding-left: 18px;
}

.page-news .archive-note a {
  color: var(--color-gold-light);
}

.page-news a {
  text-underline-offset: 3px;
}

.page-news .fold {
  scroll-margin-top: 140px;
}

.page-news .filter-design .filter-tab {
  outline-offset: 2px;
}

.page-news .filter-design .filter-tab:focus-visible,
.page-news .v3-fold summary:focus-visible,
.page-news .archive-fold summary:focus-visible,
.page-news .entry-card summary:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

@media (min-width: 760px) {
  .page-news .filter-entries {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-news .archive-timeline {
    padding: 32px 28px 26px;
  }
}

@media (min-width: 900px) {
  .page-news .observe-hero {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
    padding: 60px 0 52px;
  }

  .page-news .observe-hero__side {
    justify-self: end;
    align-self: start;
    padding-top: 26px;
  }

  .page-news .section {
    margin-top: 22px;
  }

  .page-news .latest-layout {
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 44px;
  }

  .page-news .latest-figure img {
    margin: 0;
  }

  .page-news .v3-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 40px;
  }

  .page-news .v3-inner {
    grid-template-columns: 1fr;
  }

  .page-news .filter-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 48px;
  }

  .page-news .filter-visual img {
    margin: 0;
  }

  .page-news .archive-track {
    margin-top: 36px;
  }

  .page-news .archive-timeline {
    padding: 38px 36px 32px;
  }
}