.page-news__hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 56px;
  background:
    linear-gradient(120deg, rgba(212, 163, 42, 0.12) 0%, transparent 42%),
    linear-gradient(160deg, var(--c-deep-blue) 0%, var(--c-charcoal-blue) 100%);
  color: var(--c-mist-white);
}

.page-news__hero::before,
.page-news__hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
  border: 1px solid rgba(212, 163, 42, 0.35);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-news__hero::before {
  right: -90px;
  top: -100px;
  width: 220px;
  height: 220px;
}

.page-news__hero::after {
  right: -40px;
  top: -50px;
  width: 130px;
  height: 130px;
  border-color: rgba(212, 163, 42, 0.18);
}

.page-news__hero .breadcrumbs__link {
  color: var(--c-mist-white);
  opacity: 0.82;
}

.page-news__hero .breadcrumbs__link:hover,
.page-news__hero .breadcrumbs__link:focus-visible {
  opacity: 1;
  color: var(--c-gold);
}

.page-news__hero .breadcrumbs__item[aria-current="page"] {
  color: var(--c-gold);
}

.page-news__kicker {
  margin: 28px 0 10px;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  letter-spacing: 0.28em;
  color: var(--c-gold);
}

.page-news__hero-title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.2;
  color: var(--c-mist-white);
}

.page-news__hero-sub {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: var(--c-gold);
}

.page-news__hero-lead {
  margin: 18px 0 0;
  max-width: 640px;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(253, 252, 249, 0.85);
}

.page-news__hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 0;
}

.page-news__hero-stats div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 18px;
  border-left: 2px solid var(--c-gold);
  background: rgba(255, 255, 255, 0.04);
}

.page-news__hero-stats dt {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: rgba(253, 252, 249, 0.82);
}

.page-news__hero-stats dd {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: var(--c-mist-white);
}

.page-news__section {
  padding: 56px 0;
  background: var(--c-rice-white);
}

.page-news__section--dark {
  background:
    radial-gradient(circle at 90% 10%, rgba(212, 163, 42, 0.10) 0%, transparent 36%),
    var(--c-charcoal-blue);
  color: var(--c-mist-white);
}

.page-news__section--beige {
  background: linear-gradient(180deg, var(--c-beige) 0%, var(--c-rice-white) 100%);
}

.page-news .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 28px;
}

.page-news .section-head__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 600;
}

.page-news .section-head__note {
  writing-mode: vertical-rl;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--c-deep-gold);
  white-space: nowrap;
}

.page-news .section-head--light .section-head__title {
  color: var(--c-mist-white);
}

.page-news .section-head--light .section-head__note {
  color: var(--c-gold);
  opacity: 0.85;
}

.page-news__chapter-dir {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
  padding: 12px;
  background: var(--c-mist-white);
  border: 1px solid var(--c-beige);
  border-radius: var(--radius-panel);
}

.page-news__chapter-dir .chapter-dir__link {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.85rem;
  color: var(--c-ink-green);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news__chapter-dir .chapter-dir__link:hover,
.page-news__chapter-dir .chapter-dir__link:focus-visible {
  border-color: var(--c-gold);
  color: var(--c-deep-gold);
  outline: none;
}

.page-news__chapter-dir .chapter-dir__link.is-active {
  background: var(--c-ink-green);
  color: var(--c-mist-white);
}

.page-news__timeline-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 4px 16px;
  margin-bottom: 28px;
  border-bottom: 2px solid var(--c-gold);
  scrollbar-width: thin;
}

.page-news__timeline-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 84px;
  padding: 14px 16px;
  background: var(--c-mist-white);
  border: 1px solid var(--c-beige);
  border-radius: var(--radius-panel);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news__timeline-node:hover,
.page-news__timeline-node:focus-visible {
  transform: translateY(-4px);
  border-color: var(--c-gold);
  outline: none;
}

.page-news__timeline-node.is-current {
  background: var(--c-gold);
  border-color: var(--c-gold);
}

.page-news__timeline-q {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.1;
}

.page-news__timeline-ver {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  margin-top: 4px;
  opacity: 0.7;
}

.page-news__timeline-node.is-current .page-news__timeline-q,
.page-news__timeline-node.is-current .page-news__timeline-ver {
  color: var(--c-charcoal-blue);
}

.page-news__release {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--c-mist-white);
  border: 1px solid var(--c-beige);
  border-radius: var(--radius-panel);
  box-shadow: 0 10px 30px rgba(7, 21, 38, 0.08);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news__release:hover {
  transform: translateY(-4px);
  border-color: var(--c-gold);
  box-shadow: 0 18px 44px rgba(7, 21, 38, 0.14);
}

.page-news__release-media {
  overflow: hidden;
  background: var(--c-deep-blue);
}

.page-news__release-media img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform var(--dur) var(--ease);
}

.page-news__release:hover .page-news__release-media img {
  transform: scale(1.01);
}

.page-news__release-body {
  padding: 24px;
  background:
    linear-gradient(rgba(10, 29, 62, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 29, 62, 0.025) 1px, transparent 1px),
    var(--c-mist-white);
  background-size: 20px 20px, 20px 20px, auto;
}

.page-news__release-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.page-news__version-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 10px;
  border: 1px solid var(--c-ink-green);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--c-ink-green);
  letter-spacing: 0.08em;
}

.page-news__release-title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.35;
  color: var(--c-deep-blue);
}

.page-news__release-desc {
  margin: 0 0 14px;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(10, 29, 62, 0.8);
}

.page-news__change-list {
  display: grid;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-news__change-list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(10, 29, 62, 0.85);
}

.page-news__change-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-gold);
}

.page-news__release-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-news__history-visual {
  margin: 0 0 28px;
}

.page-news__history-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-panel);
}

.page-news__history-visual figcaption {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--c-gold);
  font-size: 0.875rem;
  color: rgba(253, 252, 249, 0.66);
}

.page-news__history-grid {
  display: grid;
  gap: 16px;
}

.page-news__version-card {
  padding: 20px;
  background:
    linear-gradient(rgba(245, 240, 232, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 240, 232, 0.05) 1px, transparent 1px),
    var(--c-deep-blue);
  background-size: 22px 22px, 22px 22px, auto;
  border: 1px solid rgba(212, 163, 42, 0.3);
  border-radius: 2px 18px 2px 18px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news__version-card:hover {
  transform: translateY(-4px);
  border-color: var(--c-gold);
}

.page-news__version-card.is-current {
  border-color: var(--c-gold);
  box-shadow: inset 3px 0 0 var(--c-gold);
}

.page-news__version-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-news__version-code {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 600;
  line-height: 1;
  color: var(--c-gold);
}

.page-news__version-title {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--c-mist-white);
}

.page-news__version-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(253, 252, 249, 0.78);
}

.page-news__optimize-grid {
  display: grid;
  gap: 24px;
}

.page-news__optimize-media {
  padding: 8px;
  background: var(--c-mist-white);
  border: 1px solid var(--c-beige);
  border-radius: var(--radius-panel);
}

.page-news__optimize-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__figcaption {
  margin: 10px 0 0;
  padding-left: 10px;
  border-left: 2px solid var(--c-ink-green);
  font-size: 0.85rem;
  color: rgba(10, 29, 62, 0.66);
}

.page-news__optimize-content {
  padding: 4px 0;
}

.page-news__optimize-content h3 {
  margin: 12px 0 8px;
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  line-height: 1.35;
  color: var(--c-deep-blue);
}

.page-news__optimize-content p {
  margin: 0 0 16px;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(10, 29, 62, 0.8);
}

.page-news__optimize-list {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-news__optimize-list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(10, 29, 62, 0.85);
}

.page-news__optimize-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-ink-green);
}

.page-news__optimize-action {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-news__notice-layout {
  display: grid;
  gap: 24px;
}

.page-news__notice-figure {
  margin: 0;
}

.page-news__notice-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-panel);
}

.page-news__notice-list {
  display: grid;
  gap: 14px;
}

.page-news__notice-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 18px 22px;
  background:
    linear-gradient(rgba(10, 29, 62, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 29, 62, 0.03) 1px, transparent 1px),
    var(--c-mist-white);
  background-size: 20px 20px, 20px 20px, auto;
  border: 1px solid var(--c-beige);
  border-left: 4px solid var(--c-gold);
  border-radius: 2px 14px 2px 14px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news__notice-item:hover {
  transform: translateY(-3px);
  border-color: var(--c-gold);
}

.page-news__notice-date span {
  display: inline-flex;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--c-gold);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-deep-gold);
}

.page-news__notice-content h3 {
  margin: 8px 0 6px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--c-deep-blue);
}

.page-news__notice-content p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(10, 29, 62, 0.8);
}

.page-news__tag--notice {
  background: var(--c-ink-green);
  color: var(--c-mist-white);
}

.page-news__tag--fix {
  background: var(--c-jade-green);
  color: var(--c-mist-white);
}

.page-news__archive-notice {
  margin: 0 0 24px;
  padding: 16px 18px;
  background: rgba(212, 163, 42, 0.10);
  border: 1px solid rgba(212, 163, 42, 0.42);
  border-radius: 2px 14px 2px 14px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(253, 252, 249, 0.88);
}

.page-news__archive-grid {
  display: grid;
  gap: 16px;
}

.page-news__archive-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px;
  background: var(--c-deep-blue);
  border: 1px solid rgba(212, 163, 42, 0.28);
  border-radius: 2px 18px 2px 18px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news__archive-card:hover {
  transform: translateY(-4px);
  border-color: var(--c-gold);
}

.page-news__archive-version {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.1;
  color: var(--c-gold);
}

.page-news__archive-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--c-mist-white);
}

.page-news__archive-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(253, 252, 249, 0.75);
}

.page-news__archive-card .btn--outline {
  align-self: flex-start;
  margin-top: 4px;
  border-color: var(--c-gold);
  color: var(--c-mist-white);
}

@media (min-width: 768px) {
  .page-news__hero {
    padding: 40px 0 72px;
  }

  .page-news__hero-stats {
    gap: 20px;
  }

  .page-news__release {
    flex-direction: row;
  }

  .page-news__release-media {
    flex: 0 0 45%;
  }

  .page-news__release-body {
    flex: 1;
    padding: 32px;
  }

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

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

  .page-news__notice-item {
    flex-direction: row;
    gap: 20px;
  }

  .page-news__notice-date {
    flex: 0 0 72px;
  }
}

@media (min-width: 1024px) {
  .page-news__section {
    padding: 72px 0;
  }

  .page-news__history-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news__version-card.is-current {
    grid-column: span 2;
  }

  .page-news__optimize-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
  }

  .page-news__notice-layout {
    grid-template-columns: 2fr 3fr;
    align-items: start;
    gap: 40px;
  }

  .page-news__notice-date {
    flex-basis: 84px;
  }

  .page-news__archive-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}