.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}

.page-news {
  --tl-pad: 2rem;
  background: var(--c-bg);
  color: var(--c-white);
  font-family: var(--font-body);
}

.page-news__hero {
  position: relative;
  overflow: hidden;
  padding: 2rem 0 2.75rem;
  background: var(--c-bg-deep);
  border-bottom: 1px solid rgba(0, 191, 255, 0.22);
}

.page-news__hero::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -90px;
  width: 280px;
  height: 280px;
  background: var(--c-orange);
  opacity: 0.1;
  clip-path: polygon(60% 0, 100% 40%, 40% 100%, 0 60%);
  pointer-events: none;
}

.page-news__hero-grid {
  display: grid;
  gap: 2rem;
}

.page-news__hero .breadcrumb {
  margin: 0 0 1.25rem;
}

.page-news__hero .breadcrumb__sep {
  margin: 0 0.5rem;
  color: var(--c-gray);
}

.page-news__hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.24em;
  color: var(--c-blue);
  margin: 0 0 0.75rem;
}

.page-news__hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.75rem, 7vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: 0.03em;
  margin: 0 0 1rem;
  color: var(--c-white);
}

.page-news__hero-accent {
  display: block;
  color: var(--c-orange);
}

.page-news__hero-desc {
  color: var(--c-gray);
  max-width: 36rem;
  line-height: 1.8;
  margin: 0 0 1.5rem;
}

.page-news__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.page-news__hero-aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.page-news__hero-stamp {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 8rem;
  height: 8rem;
  border-radius: 45% 55% 42% 58%;
  background: linear-gradient(135deg, var(--c-blue), var(--c-orange));
  color: var(--c-ink);
  text-align: center;
  transform: rotate(-6deg);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.page-news__hero-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 3.25rem;
  line-height: 0.9;
}

.page-news__hero-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  margin-top: 0.3rem;
}

.page-news__hero-tape {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news__hero-tape-item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
}

.page-news__section-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.page-news__heading {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-blue);
  margin: 0;
}

.page-news__section-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-gray);
  margin: 0;
}

.page-news__featured {
  padding: 2.5rem 0 2rem;
  background: linear-gradient(180deg, rgba(0, 191, 255, 0.05), transparent);
}

.page-news__featured-grid {
  display: grid;
  gap: 1.5rem;
}

.page-news__feature-card {
  display: grid;
  gap: 1.25rem;
  background: var(--c-raise);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
  scroll-margin-top: 2rem;
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.page-news__feature-card--primary {
  border-top: 4px solid var(--c-blue);
}

.page-news__feature-card--secondary {
  border-top: 4px solid var(--c-orange);
}

.page-news__feature-card:hover {
  border-color: rgba(0, 191, 255, 0.45);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.35);
}

.page-news__feature-card:target {
  box-shadow: 0 0 0 2px var(--c-orange);
}

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

.page-news__feature-media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-news__feature-copy {
  display: grid;
  gap: 0.75rem;
  padding: 0 1.25rem 1.25rem;
  align-content: start;
}

.page-news__feature-title {
  font-family: var(--font-head);
  font-size: clamp(1.375rem, 2.4vw, 2rem);
  line-height: 1.2;
  margin: 0;
}

.page-news__feature-title a {
  color: var(--c-white);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.page-news__feature-title a:hover {
  color: var(--c-orange);
}

.page-news__feature-excerpt {
  color: var(--c-gray);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0;
}

.page-news__feature-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  color: var(--c-blue);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-decoration: none;
  margin-top: 0.25rem;
  transition: color var(--duration) var(--ease);
}

.page-news__feature-link:hover {
  color: var(--c-green);
}

.page-news__feature-link:focus-visible,
.page-news__search-item:focus-visible,
.page-news__tag:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: 3px;
}

.page-news__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.25em 0.7em;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-body);
  letter-spacing: 0.06em;
  line-height: 1.5;
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--duration) var(--ease), filter var(--duration) var(--ease);
}

.page-news__tag:hover,
.page-news__tag:focus-visible {
  transform: translateY(-1px);
  filter: brightness(1.12);
}

.page-news__tag--ver {
  background: var(--c-blue);
  color: var(--c-ink);
}

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

.page-news__tag--ann {
  background: var(--c-orange);
  color: var(--c-white);
}

.page-news__tag--guide {
  background: var(--c-paper);
  color: var(--c-ink);
}

.page-news__tag--tech {
  background: var(--c-gray);
  color: var(--c-ink);
}

.page-news__latest {
  padding: 3rem 0 4rem;
}

.page-news__main {
  min-width: 0;
}

.page-news__timeline {
  position: relative;
  margin-top: 0.25rem;
  padding-left: var(--tl-pad);
}

.page-news__timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-blue), var(--c-orange));
  opacity: 0.28;
  pointer-events: none;
}

.page-news__post {
  position: relative;
  padding-bottom: 2.25rem;
  scroll-margin-top: 2rem;
  border-left: 2px solid transparent;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}

.page-news__post:last-child {
  padding-bottom: 0;
}

.page-news__post::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--tl-pad) + 3px);
  top: 0.3rem;
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--c-bg);
  border: 3px solid var(--c-blue);
  box-shadow: 0 0 0 3px rgba(0, 191, 255, 0.14);
  z-index: 1;
}

.page-news__post:target {
  border-left-color: var(--c-orange);
  background: linear-gradient(90deg, rgba(255, 106, 0, 0.06), transparent);
}

.page-news__post-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.page-news__post-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-blue);
}

.page-news__post-state {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-gray);
}

.page-news__post-grid {
  display: grid;
  gap: 1rem;
}

.page-news__post-copy {
  min-width: 0;
}

.page-news__post-title {
  font-family: var(--font-head);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

.page-news__post-title a {
  color: var(--c-white);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.page-news__post-title a:hover {
  color: var(--c-blue);
}

.page-news__post-copy p {
  color: var(--c-gray);
  font-size: 0.9375rem;
  line-height: 1.75;
  margin: 0 0 0.875rem;
}

.page-news__post-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  color: var(--c-green);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.page-news__post-more:hover {
  color: var(--c-orange);
}

.page-news__post-more:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: 3px;
}

.page-news__post-media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  background: var(--c-bg-deep);
}

.page-news__aside {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}

.page-news__filter,
.page-news__search,
.page-news__explore {
  padding: 1.5rem;
  background: var(--c-raise);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius);
}

.page-news__filter {
  border-top: 3px solid var(--c-blue);
}

.page-news__filter-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.page-news__filter-note {
  color: var(--c-gray);
  font-size: 0.8125rem;
  line-height: 1.5;
  margin: 1rem 0 0;
}

.page-news__search {
  border-top: 3px solid var(--c-orange);
}

.page-news__search-index {
  display: grid;
  margin-top: 1rem;
}

.page-news__search-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.5rem;
  color: var(--c-white);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

.page-news__search-item:last-child {
  border-bottom: 0;
}

.page-news__search-item:hover,
.page-news__search-item:focus-visible {
  background: rgba(0, 191, 255, 0.08);
  color: var(--c-blue);
}

.page-news__search-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-orange);
}

.page-news__search-word {
  font-size: 0.875rem;
}

.page-news__search-go {
  margin-left: auto;
  color: var(--c-gray);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.page-news__as-home {
  padding: 1.5rem;
  background: linear-gradient(145deg, rgba(0, 191, 255, 0.1), rgba(0, 191, 255, 0.02));
  border: 1px solid rgba(0, 191, 255, 0.25);
  border-radius: var(--radius);
}

.page-news__as-home-text {
  color: var(--c-white);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0.75rem 0 0;
}

.page-news__as-home-text a {
  color: var(--c-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news__explore {
  background: var(--c-paper);
  border-radius: var(--radius);
}

.page-news__explore .panel__label {
  color: var(--c-ink);
}

.page-news__explore-list {
  display: grid;
  gap: 0.5rem;
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.page-news__explore-list a {
  display: inline-block;
  color: var(--c-ink);
  font-size: 0.875rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(13, 13, 26, 0.18);
  padding-bottom: 0.2rem;
  transition: border-color var(--duration) var(--ease), color var(--duration) var(--ease);
}

.page-news__explore-list a:hover {
  border-bottom-color: var(--c-orange);
  color: var(--c-ink);
}

@media (min-width: 720px) {
  .page-news__post-grid {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: center;
  }

  .page-news__post-media {
    align-self: center;
  }

  .page-news__post-media img,
  .page-news__feature-media img {
    aspect-ratio: 3 / 2;
    object-fit: cover;
  }
}

@media (min-width: 820px) {
  .page-news__featured-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: stretch;
  }
}

@media (min-width: 960px) {
  .page-news__hero-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 3rem;
  }

  .page-news__hero-aside {
    align-items: flex-end;
  }

  .page-news__layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 2.5rem;
    align-items: start;
  }

  .page-news__aside {
    position: sticky;
    top: 2rem;
  }
}