.page-news {
  --news-rail-w: 208px;
  --news-gap: clamp(22px, 3.4vw, 48px);
  background:
    radial-gradient(120% 55% at 88% 0%, rgba(0, 212, 255, .10), transparent 62%),
    var(--by-deep-sea);
  color: var(--by-pearl);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-news a {
  color: inherit;
}

.page-news .page-news__crumb {
  padding-top: clamp(14px, 2vw, 22px);
}

.page-news .by-crumb__item a {
  color: var(--by-electric-soft);
  text-decoration: none;
}

.page-news .by-crumb__item a:hover {
  color: var(--by-electric);
}

/* ---------- Hero ---------- */

.page-news .news-hero {
  padding-top: clamp(18px, 3vw, 36px);
  padding-bottom: clamp(32px, 5vw, 62px);
}

.page-news .news-hero__inner {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-news .news-hero__text h1 {
  font-family: var(--by-font-head);
  font-weight: 800;
  font-size: clamp(29px, 6.1vw, 54px);
  line-height: 1.15;
  letter-spacing: 0.015em;
  color: var(--by-sand);
  margin: 14px 0 0;
  text-wrap: balance;
}

.page-news .news-hero__lede {
  margin-top: 16px;
  max-width: 46ch;
  color: var(--by-pearl);
  font-size: clamp(15px, 1.65vw, 17px);
  line-height: 1.82;
}

.page-news .news-hero__meta {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 14px;
  color: var(--by-electric-soft);
}

.page-news .news-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  border: 2px solid var(--by-line);
  border-radius: 999px;
  background: rgba(7, 19, 31, .42);
}

.page-news .news-hero__meta .by-mono {
  color: var(--by-electric);
  font-weight: 700;
}

.page-news .news-hero__figure {
  margin: 0;
  border: 2px solid var(--by-line-strong);
  border-radius: var(--by-radius-l);
  overflow: hidden;
  box-shadow: var(--by-shadow-card);
  background: var(--by-grad-panel);
}

.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- Layout ---------- */

.page-news .news-layout {
  display: grid;
  gap: var(--news-gap);
  align-items: start;
}

.page-news .news-rail {
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-m);
  background: linear-gradient(180deg, rgba(14, 58, 92, .78), rgba(10, 37, 64, .62));
  padding: 18px 16px;
  box-shadow: 6px 6px 0 rgba(7, 19, 31, .5);
}

.page-news .news-rail__label {
  margin: 0 0 12px;
  font-family: var(--by-font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--by-electric-soft);
}

.page-news .news-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .news-rail__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--by-radius-s);
  color: var(--by-pearl);
  font-size: 14.5px;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-news .news-rail__list a:hover,
.page-news .news-rail__list a:focus-visible {
  background: rgba(0, 212, 255, .10);
  color: var(--by-sand);
  border-left-color: var(--by-electric);
}

.page-news .news-rail__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--by-electric);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, .18);
  flex: none;
}

.page-news .news-rail__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--by-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--by-pearl);
  opacity: .82;
}

.page-news .news-stream {
  display: grid;
  gap: clamp(36px, 5vw, 68px);
  min-width: 0;
}

/* ---------- Block shell ---------- */

.page-news .news-block {
  min-width: 0;
  scroll-margin-top: calc(var(--by-header-h) + 18px);
}

.page-news .news-block__head h2 {
  font-family: var(--by-font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.22;
  letter-spacing: .012em;
  color: var(--by-sand);
  margin: 10px 0 0;
}

.page-news .news-block__lede {
  margin: 12px 0 0;
  max-width: 54ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--by-pearl);
}

/* ---------- Feed ---------- */

.page-news .news-feed {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-news .news-item {
  position: relative;
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 12px;
  padding: 18px 16px 18px 14px;
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-m);
  background: linear-gradient(155deg, rgba(14, 58, 92, .58), rgba(7, 19, 31, .54));
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}

.page-news .news-item:hover {
  transform: translate(-2px, -4px);
  box-shadow: var(--by-shadow-card-hover);
  border-color: var(--by-line-strong);
}

.page-news .news-item__marker {
  width: 10px;
  height: 10px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--by-electric);
  box-shadow: 0 0 0 4px rgba(0, 212, 255, .16);
  animation: news-pulse 2.6s ease-in-out infinite;
}

.page-news .news-item__marker--coral {
  background: var(--by-coral);
  box-shadow: 0 0 0 4px rgba(255, 107, 74, .18);
  animation-name: news-pulse-coral;
}

@keyframes news-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(0, 212, 255, .16); }
  50%      { box-shadow: 0 0 0 9px rgba(0, 212, 255, 0); }
}

@keyframes news-pulse-coral {
  0%, 100% { box-shadow: 0 0 0 4px rgba(255, 107, 74, .18); }
  50%      { box-shadow: 0 0 0 9px rgba(255, 107, 74, 0); }
}

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

.page-news .news-item__title {
  margin: 10px 0 0;
  font-family: var(--by-font-head);
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--by-sand);
}

.page-news .news-item__excerpt {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--by-pearl);
}

.page-news .news-item__more {
  margin-top: 12px;
}

.page-news .news-item__more summary {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  list-style: none;
  padding: 4px 0;
  font-family: var(--by-font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--by-electric-soft);
}

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

.page-news .news-item__more summary::after {
  content: "+";
  font-size: 15px;
  line-height: 1;
  color: var(--by-electric);
}

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

.page-news .news-item__more p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--by-pearl);
}

.page-news .news-item__link {
  color: var(--by-electric);
  text-decoration: none;
  border-bottom: 1px solid var(--by-line-strong);
}

.page-news .news-item__link:hover {
  color: var(--by-sand);
  border-bottom-color: var(--by-coral);
}

/* ---------- Nav index cards ---------- */

.page-news .news-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-news .news-card {
  border: 2px solid var(--by-line);
  border-left: 5px solid var(--by-electric);
  border-radius: var(--by-radius-m);
  background: rgba(14, 58, 92, .42);
  padding: 18px 18px 16px;
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}

.page-news .news-card:hover {
  transform: translate(-2px, -4px);
  box-shadow: var(--by-shadow-card-hover);
  border-left-color: var(--by-coral);
}

.page-news .news-card__period {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--by-electric-soft);
}

.page-news .news-card__title {
  margin: 10px 0 0;
  font-family: var(--by-font-head);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--by-sand);
}

.page-news .news-card__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--by-pearl);
}

.page-news .news-card__foot {
  margin: 14px 0 0;
  font-size: 13.5px;
}

.page-news .news-card__foot a {
  color: var(--by-electric);
  text-decoration: none;
  border-bottom: 1px dashed var(--by-line-strong);
}

.page-news .news-card__foot a:hover {
  color: var(--by-coral);
  border-bottom-color: var(--by-coral);
}

/* ---------- Query list ---------- */

.page-news .news-queries {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 2px solid var(--by-line);
}

.page-news .news-queries__row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 4px;
  border-bottom: 2px solid var(--by-line);
  transition: background .2s ease;
}

.page-news .news-queries__row:hover {
  background: rgba(0, 212, 255, .06);
}

.page-news .news-queries__idx {
  font-size: 15px;
  font-weight: 700;
  color: var(--by-coral);
  letter-spacing: .06em;
  padding-top: 2px;
}

.page-news .news-queries__term {
  margin: 0;
  font-family: var(--by-font-head);
  font-size: clamp(15.5px, 1.9vw, 17.5px);
  font-weight: 700;
  color: var(--by-sand);
  line-height: 1.45;
}

.page-news .news-queries__note {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--by-pearl);
}

/* ---------- Resource update ---------- */

.page-news .news-resource {
  margin-top: 24px;
  display: grid;
  gap: 20px;
}

.page-news .news-resource__figure {
  margin: 0;
  border: 2px solid var(--by-line-strong);
  border-radius: var(--by-radius-m);
  overflow: hidden;
  box-shadow: var(--by-shadow-card);
  background: var(--by-tide);
}

.page-news .news-resource__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-news .news-resource__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-resource__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-s);
  background: rgba(7, 19, 31, .38);
}

.page-news .news-resource__badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  white-space: nowrap;
}

.page-news .news-resource__badge--add {
  background: var(--by-electric);
  color: var(--by-ink);
}

.page-news .news-resource__badge--edit {
  background: var(--by-electric-soft);
  color: var(--by-ink);
}

.page-news .news-resource__badge--off {
  background: transparent;
  color: var(--by-coral);
  border: 2px solid var(--by-coral);
}

.page-news .news-resource__name {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--by-sand);
}

.page-news .news-resource__meta {
  margin: 4px 0 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--by-electric-soft);
}

/* ---------- Changelog ---------- */

.page-news .news-changelog {
  margin-top: 24px;
  display: grid;
  gap: 24px;
}

.page-news .news-changelog__figure {
  margin: 0;
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-m);
  overflow: hidden;
  box-shadow: var(--by-shadow-card);
  background: var(--by-grad-panel);
}

.page-news .news-changelog__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-news .news-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  border-left: 2px solid var(--by-line-strong);
  display: grid;
  gap: 0;
}

.page-news .news-timeline__item {
  position: relative;
  padding: 0 0 26px 4px;
}

.page-news .news-timeline__item:last-child {
  padding-bottom: 4px;
}

.page-news .news-timeline__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--by-coral);
  border: 2px solid var(--by-deep-sea);
  box-shadow: 0 0 0 3px rgba(255, 107, 74, .22);
}

.page-news .news-timeline__ver {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--by-electric);
}

.page-news .news-timeline__when {
  margin: 4px 0 0;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--by-electric-soft);
}

.page-news .news-timeline__desc {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--by-pearl);
}

/* ---------- Topics ---------- */

.page-news .news-topics {
  margin-top: 24px;
  display: grid;
  gap: 22px;
}

.page-news .news-topics__figure {
  margin: 0;
  border: 2px solid var(--by-line-strong);
  border-radius: var(--by-radius-l);
  overflow: hidden;
  box-shadow: var(--by-shadow-card);
  background: var(--by-grad-signal);
}

.page-news .news-topics__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

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

.page-news .news-topic {
  border: 2px solid var(--by-line);
  border-radius: var(--by-radius-m);
  background: linear-gradient(150deg, rgba(14, 58, 92, .55), rgba(7, 19, 31, .5));
  padding: 16px 16px 14px;
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}

.page-news .news-topic:hover {
  transform: translate(-2px, -4px);
  box-shadow: var(--by-shadow-card-hover);
  border-color: var(--by-line-strong);
}

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

.page-news .news-topic__title {
  margin: 12px 0 0;
  font-family: var(--by-font-head);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--by-sand);
}

.page-news .news-topic__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--by-pearl);
}

.page-news .news-topic__foot {
  margin: 12px 0 0;
  font-size: 13.5px;
}

.page-news .news-topic__foot a {
  color: var(--by-electric);
  text-decoration: none;
  border-bottom: 1px dashed var(--by-line-strong);
}

.page-news .news-topic__foot a:hover {
  color: var(--by-coral);
  border-bottom-color: var(--by-coral);
}

/* ---------- CTA ---------- */

.page-news .news-cta {
  display: grid;
  gap: 18px;
  padding: clamp(22px, 3vw, 34px);
  border: 2px solid var(--by-line-strong);
  border-radius: var(--by-radius-l);
  background:
    radial-gradient(115% 95% at 100% 0%, rgba(0, 212, 255, .16), transparent 58%),
    linear-gradient(150deg, #0E3A5C 0%, #0A2540 62%, #07131F 100%);
  box-shadow: var(--by-shadow-card);
}

.page-news .news-cta__title {
  margin: 10px 0 0;
  font-family: var(--by-font-head);
  font-size: clamp(20px, 2.8vw, 28px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--by-sand);
}

.page-news .news-cta__lede {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--by-pearl);
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item__marker,
  .page-news .news-item__marker--coral {
    animation: none;
  }
  .page-news .news-item,
  .page-news .news-card,
  .page-news .news-topic {
    transition: none;
  }
}

/* ---------- Breakpoints ---------- */

@media (min-width: 640px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-news .news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .news-resource {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-news .news-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }
  .page-news .news-layout {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
  }
  .page-news .news-rail {
    position: sticky;
    top: calc(var(--by-header-h) + 20px);
  }
  .page-news .news-resource {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-news .news-changelog {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-news .news-topics {
    grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
    align-items: start;
  }
  .page-news .news-topics__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-news .news-grid--nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .page-news .news-queries__row {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
  }
  .page-news .news-resource__item {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
  .page-news .news-hero__meta li {
    font-size: 13px;
    padding: 5px 10px;
  }
}
</main>