.page-news {
  --news-overlay: rgba(11, 29, 58, 0.68);
  position: relative;
  padding: 0 0 72px;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 52px 52px;
  overflow-x: hidden;
}

.page-news__crumb {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 22px 20px 0;
  display: flex;
  gap: 8px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--dim);
}

.page-news__crumb a {
  color: var(--gold);
  text-decoration: none;
}

.page-news__crumb a:hover {
  color: var(--gold-light);
}

.page-news__crumb [aria-current="page"] {
  color: var(--text);
}

.page-news__latest {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 32px 20px 48px;
  display: grid;
  gap: 24px;
}

.page-news__latest-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow-panel);
  border: 1px solid var(--line);
}

.page-news__latest-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(200deg, transparent 40%, var(--news-overlay));
  pointer-events: none;
}

.page-news__latest-frame::after {
  content: "";
  position: absolute;
  top: 0;
  left: -30%;
  z-index: 3;
  width: 24%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(242, 169, 0, 0.22), transparent);
  animation: page-news-scan 1.4s ease-out 0.2s 1;
  pointer-events: none;
}

@keyframes page-news-scan {
  from { left: -30%; }
  to { left: 130%; }
}

.page-news__latest-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-news__latest-code {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 4;
  background: rgba(11, 29, 58, 0.82);
  border: 1px solid var(--gold);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news__latest-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.page-news__latest-kicker {
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 0.1em;
  margin: 0;
}

.page-news__latest-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.12;
  margin: 0;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-news__latest-title::after {
  content: "";
  display: block;
  width: 72px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  margin-top: 16px;
}

.page-news__latest-intro {
  color: var(--dim);
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  max-width: 34em;
}

.page-news__latest-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 6px;
}

.page-news__browse {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
}

.page-news__browse::before {
  content: "";
  display: block;
  height: 1px;
  margin-bottom: 44px;
  background: linear-gradient(90deg, var(--gold), var(--line) 40%, transparent);
}

.page-news__browse-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.page-news__browse-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news__browse-title-group .mono-label,
.page-news__rhythm-content > .mono-label {
  color: var(--violet-mist);
  margin: 0;
}

.page-news__section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
  margin: 0;
  color: var(--text);
}

.page-news__section-title::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--gold), var(--violet));
  margin-top: 12px;
}

.page-news__browse-intro {
  color: var(--dim);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
  max-width: 40em;
}

.page-news__feature-grid {
  display: grid;
  gap: 20px;
  margin: 24px 0 40px;
}

.page-news__feature-card {
  background: var(--panel);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-panel);
  transition: transform 120ms ease, border-color 120ms ease;
}

.page-news__feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.page-news__feature-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-news__feature-body {
  padding: 18px 20px 20px;
}

.page-news__feature-body .mono-label {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.06em;
  margin: 0;
}

.page-news__feature-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  margin: 10px 0 8px;
  color: var(--text);
}

.page-news__feature-text {
  color: var(--dim);
  font-size: 14px;
  line-height: 1.65;
  margin: 0 0 16px;
}

.page-news__feature-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news__link {
  color: var(--gold);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}

.page-news__link:hover {
  color: var(--gold-light);
  text-decoration: underline;
}

.page-news__tabs {
  margin-bottom: 56px;
}

.page-news .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 0 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.page-news .tab-button {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--dim);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  cursor: pointer;
  transition: color 120ms ease, border-color 120ms ease, background 120ms ease;
}

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

.page-news .tab-button[aria-selected="true"] {
  color: var(--bg);
  background: var(--gold);
  border-color: var(--gold);
  font-weight: 700;
}

.page-news .tab-button .mono-label {
  font-size: 12px;
  margin-left: 4px;
  opacity: 0.78;
}

.page-news .tab-panel {
  padding: 4px 0 0;
}

.page-news__list-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 4px;
}

.page-news__list-title .mono-label {
  color: var(--dim);
  font-size: 13px;
  margin-left: 6px;
  font-family: var(--font-mono);
}

.page-news__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 8px 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  transition: background 120ms ease, padding-left 120ms ease;
}

.page-news__item:hover {
  background: linear-gradient(90deg, rgba(242, 169, 0, 0.06), transparent 70%);
  padding-left: 8px;
}

.page-news__item-index {
  color: var(--gold);
  font-size: 13px;
  padding-top: 4px;
}

.page-news__item-body {
  min-width: 0;
}

.page-news__item-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 6px;
  color: var(--text);
}

.page-news__item-body h3 a {
  color: inherit;
  text-decoration: none;
}

.page-news__item-body h3 a:hover {
  color: var(--gold-light);
}

.page-news__item-body p {
  font-size: 14px;
  color: var(--dim);
  line-height: 1.65;
  margin: 0;
}

.page-news__item-side {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news__item-side .mono-label {
  color: var(--dim);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news__details {
  margin-top: 8px;
  font-size: 14px;
  color: var(--dim);
}

.page-news__details summary {
  cursor: pointer;
  color: var(--gold);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.page-news__details summary::before {
  content: "＋";
  color: var(--violet-mist);
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-news__details summary:hover {
  color: var(--gold-light);
}

.page-news__details p {
  margin: 10px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--violet);
  line-height: 1.65;
}

.page-news__rhythm {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 56px 20px 0;
  display: grid;
  gap: 36px;
}

.page-news__rhythm-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-news__rhythm-content > .mono-label {
  margin-bottom: -8px;
}

.page-news__rhythm-intro {
  color: var(--dim);
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  max-width: 40em;
}

.page-news__rhythm-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  width: 100%;
}

.page-news__rhythm-facts li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  background: var(--panel);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  border: 1px solid var(--line);
  font-size: 15px;
  color: var(--dim);
  line-height: 1.6;
}

.page-news__rhythm-facts .mono-label {
  color: var(--gold);
  font-size: 12px;
  flex-shrink: 0;
  min-width: 40px;
  font-family: var(--font-mono);
}

.page-news__rhythm-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 100%;
  margin-top: 4px;
}

.page-news__stat {
  background: linear-gradient(135deg, var(--panel), rgba(123, 44, 191, 0.16));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news__stat-num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.1;
}

.page-news__stat-label {
  font-size: 13px;
  color: var(--dim);
}

.page-news__rhythm-visual {
  position: relative;
  background: var(--panel);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: 20px 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-news__timeline-svg {
  display: block;
  width: 100%;
  height: auto;
  min-width: 560px;
}

.page-news__timeline-track {
  stroke: var(--line-strong);
  stroke-width: 2;
}

.page-news__timeline-dot {
  fill: var(--gold);
}

.page-news__timeline-period {
  fill: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}

.page-news__timeline-note {
  fill: var(--dim);
  font-family: var(--font-body);
  font-size: 12px;
}

@media (min-width: 640px) {
  .page-news__feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-news__feature-card:last-child {
    grid-column: span 2;
  }

  .page-news__item {
    gap: 8px 20px;
  }
}

@media (min-width: 900px) {
  .page-news__latest {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: center;
    padding-top: 48px;
  }

  .page-news__latest-frame {
    order: 2;
    transform: translateY(8px);
  }

  .page-news__latest-img {
    aspect-ratio: 2 / 1;
  }

  .page-news__latest-title {
    font-size: clamp(40px, 5vw, 68px);
  }

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

  .page-news__feature-card:last-child {
    grid-column: auto;
  }

  .page-news__item {
    grid-template-columns: 64px 1fr 180px;
    align-items: center;
  }

  .page-news__item-side {
    grid-column: 3;
    flex-direction: column;
    align-items: flex-end;
    gap: 6px;
  }

  .page-news__rhythm {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
    padding-top: 72px;
  }

  .page-news__rhythm-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news__latest-frame::after {
    animation: none;
  }

  .page-news__feature-card {
    transition: none;
  }
}