.page-news {
  --news-rail: 56px;
  --news-gap: 16px;
  --news-line-left: 63px;
  --news-dot-left: 59px;
}

.page-news .news-hero {
  padding-top: 28px;
}

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

.page-news .news-hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-news .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.page-news .breadcrumb a {
  color: var(--blue);
  text-decoration: none;
}

.page-news .breadcrumb a:hover {
  color: var(--green);
}

.page-news .news-hero__title {
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin: 0;
}

.page-news .news-hero__lead {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.9;
  max-width: 60ch;
  margin: 0;
}

.page-news .news-hero__media {
  position: relative;
  margin: 0;
  border: 2px solid var(--line);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(0, 212, 255, 0.16), rgba(74, 0, 224, 0.12)),
    var(--bg-panel);
}

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

.page-news .news-notice {
  margin-top: 40px;
}

.page-news .news-notice__panel {
  border: 2px solid var(--line);
  border-top: 4px solid var(--green);
  background: var(--bg-panel);
  box-shadow: var(--shadow);
}

.page-news .news-notice__stage {
  position: relative;
  overflow: hidden;
}

.page-news .news-notice__viewport {
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.page-news .news-notice__track {
  display: flex;
  width: 300%;
  transition: transform 0.5s ease;
}

.page-news .news-notice__slide {
  flex: 0 0 calc(100% / 3);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 18px;
  min-height: 96px;
}

.page-news .news-notice__badge {
  flex-shrink: 0;
}

.page-news .news-notice__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text);
}

.page-news .news-notice__text strong {
  color: var(--text);
  font-weight: 600;
}

.page-news .news-notice__tabs {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 6px;
  padding: 0 18px 16px;
}

.page-news .news-notice__tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 26px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}

.page-news .news-notice__tab:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.page-news .news-notice__radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.page-news .news-notice__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}

.page-news #notice-1:checked ~ .news-notice__viewport .news-notice__track {
  transform: translateX(0);
}

.page-news #notice-2:checked ~ .news-notice__viewport .news-notice__track {
  transform: translateX(-33.3333%);
}

.page-news #notice-3:checked ~ .news-notice__viewport .news-notice__track {
  transform: translateX(-66.6667%);
}

.page-news #notice-1:checked ~ .news-notice__tabs label[for="notice-1"],
.page-news #notice-2:checked ~ .news-notice__tabs label[for="notice-2"],
.page-news #notice-3:checked ~ .news-notice__tabs label[for="notice-3"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--bg);
  font-weight: 700;
}

.page-news #notice-1:focus-visible ~ .news-notice__tabs label[for="notice-1"],
.page-news #notice-2:focus-visible ~ .news-notice__tabs label[for="notice-2"],
.page-news #notice-3:focus-visible ~ .news-notice__tabs label[for="notice-3"] {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.page-news .news-index {
  margin-top: 48px;
}

.page-news .news-filter {
  position: relative;
  margin-top: 24px;
}

.page-news .news-filter__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.page-news .news-filter__side {
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

.page-news .news-filter__labels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.page-news .news-filter__label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 8px;
  border: 1px solid var(--line);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s, color 0.2s, transform 0.2s;
}

.page-news .news-filter__label:hover {
  border-color: var(--blue);
  color: var(--text);
}

.page-news .news-filter__count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.page-news .news-filter__timeline {
  border: 1px solid var(--line);
  background: var(--bg-panel);
  padding: 14px 16px;
}

.page-news .news-filter__timeline-label {
  margin: 0 0 10px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.page-news .news-filter__periods {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.page-news .news-filter__period {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.page-news .news-filter__period .num {
  color: var(--blue);
  font-size: 0.7rem;
}

.page-news #filter-all:checked ~ .news-filter__side .news-filter__label[for="filter-all"],
.page-news #filter-data:checked ~ .news-filter__side .news-filter__label[for="filter-data"],
.page-news #filter-feature:checked ~ .news-filter__side .news-filter__label[for="filter-feature"],
.page-news #filter-notice:checked ~ .news-filter__side .news-filter__label[for="filter-notice"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--bg);
  font-weight: 700;
}

.page-news #filter-all:checked ~ .news-filter__side .news-filter__label[for="filter-all"] .news-filter__count,
.page-news #filter-data:checked ~ .news-filter__side .news-filter__label[for="filter-data"] .news-filter__count,
.page-news #filter-feature:checked ~ .news-filter__side .news-filter__label[for="filter-feature"] .news-filter__count,
.page-news #filter-notice:checked ~ .news-filter__side .news-filter__label[for="filter-notice"] .news-filter__count {
  color: var(--bg);
}

.page-news #filter-all:focus-visible ~ .news-filter__side .news-filter__label[for="filter-all"],
.page-news #filter-data:focus-visible ~ .news-filter__side .news-filter__label[for="filter-data"],
.page-news #filter-feature:focus-visible ~ .news-filter__side .news-filter__label[for="filter-feature"],
.page-news #filter-notice:focus-visible ~ .news-filter__side .news-filter__label[for="filter-notice"] {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.page-news .news-filter__results .news-item {
  display: none;
}

.page-news #filter-all:checked ~ .news-filter__results .news-item,
.page-news #filter-data:checked ~ .news-filter__results .news-item[data-cat="data"],
.page-news #filter-feature:checked ~ .news-filter__results .news-item[data-cat="feature"],
.page-news #filter-notice:checked ~ .news-filter__results .news-item[data-cat="notice"] {
  display: grid;
}

.page-news .news-list {
  display: grid;
  gap: 0;
}

.page-news .news-item {
  position: relative;
  display: grid;
  grid-template-columns: var(--news-rail) minmax(0, 1fr);
  gap: var(--news-gap);
  padding-bottom: 24px;
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: var(--news-line-left);
  top: 4px;
  bottom: 0;
  width: 2px;
  background: var(--line);
}

.page-news .news-item:last-child::before {
  height: 20px;
  bottom: auto;
}

.page-news .news-item::after {
  content: "";
  position: absolute;
  left: var(--news-dot-left);
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--green);
  box-shadow: 0 0 0 2px var(--green);
}

.page-news .news-item__time {
  padding-top: 18px;
  text-align: right;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.page-news .news-item__card {
  position: relative;
  border: 2px solid var(--line);
  border-left: 3px solid var(--line);
  background: var(--bg-panel);
  padding: 18px 16px 16px;
  transition: background-color 0.2s, border-color 0.2s, transform 0.2s;
}

.page-news .news-item__card:hover,
.page-news .news-item__card:focus-within {
  background: var(--bg-elevated);
  border-color: var(--line-light);
  border-left-color: var(--green);
  transform: translateY(-2px);
}

.page-news .news-item[data-cat="notice"] .news-item__card {
  border-left-color: var(--red);
}

.page-news .news-item[data-cat="notice"] .news-item__card:hover,
.page-news .news-item[data-cat="notice"] .news-item__card:focus-within {
  border-left-color: var(--red);
}

.page-news .news-item__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.page-news .news-item__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.01em;
}

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

.page-news .news-item__details summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

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

.page-news .news-item__details summary:hover {
  color: var(--green);
}

.page-news .news-item__details[open] summary {
  color: var(--green);
}

.page-news .news-item__details summary::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: 1px solid var(--green);
  color: var(--green);
  font-size: 0.75rem;
  line-height: 1;
}

.page-news .news-item__details[open] summary::before {
  content: "–";
}

.page-news .news-item__summary {
  margin-top: 12px;
  padding: 14px 16px;
  background: var(--bg-elevated);
  border-left: 2px solid var(--green);
}

.page-news .news-item[data-cat="notice"] .news-item__summary {
  border-left-color: var(--red);
}

.page-news .news-item__summary p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--text);
}

.page-news .news-item__summary a {
  color: var(--blue);
  text-decoration: none;
}

.page-news .news-item__summary a:hover {
  color: var(--green);
}

.page-news .news-item__figure {
  position: relative;
  margin: 14px 0 0;
}

.page-news .news-item__figure--report {
  max-width: 400px;
}

.page-news .news-item__figure::after {
  content: "IMG-DATA";
  position: absolute;
  top: 8px;
  left: 8px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--bg);
  background: var(--blue);
  padding: 2px 6px;
  letter-spacing: 0.08em;
}

.page-news .news-item__figure img {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--bg);
}

@media (min-width: 920px) {
  .page-news .news-hero__grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }

  .page-news .news-notice__slide {
    padding: 30px 32px;
    min-height: 140px;
  }

  .page-news .news-filter {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 28px;
    align-items: start;
  }

  .page-news .news-filter__side {
    position: sticky;
    top: 120px;
    margin-bottom: 0;
  }

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

  .page-news .news-filter__label {
    justify-content: space-between;
  }

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

  .page-news .news-item {
    --news-rail: 84px;
    --news-gap: 32px;
    --news-line-left: 99px;
    --news-dot-left: 95px;
  }

  .page-news .news-item__card {
    padding: 22px 20px 18px;
  }

  .page-news .news-item__time {
    padding-top: 22px;
  }

  .page-news .news-item__details summary {
    font-size: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-notice__track {
    transition: none;
  }

  .page-news .news-item__card,
  .page-news .news-filter__label,
  .page-news .news-notice__tab {
    transition: none;
  }

  .page-news .news-item__card:hover,
  .page-news .news-item__card:focus-within {
    transform: none;
  }
}