.page-news {
  --news-c1: var(--accent);
  --news-c2: var(--electric);
  --news-c3: var(--purple);
  --news-container-max: 960px;
  --news-gutter: clamp(1.25rem, 4vw, 2.5rem);
  position: relative;
  background: var(--primary);
  color: var(--white);
  min-height: 100vh;
  font-family: var(--font-body);
}

.page-news__container {
  width: 100%;
  max-width: var(--news-container-max);
  margin-inline: auto;
  padding-inline: var(--news-gutter);
}

.page-news__intro {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-bottom: 1.5rem;
}

.page-news .breadcrumb {
  margin-bottom: 2rem;
}

.page-news__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  border-left: 3px solid var(--gold);
  padding-left: 0.75rem;
  margin-bottom: 1rem;
}

.page-news__lead {
  max-width: 760px;
  color: var(--pale);
  margin-top: 1.5rem;
  border-bottom: 1px solid rgba(230, 240, 250, 0.15);
  padding-bottom: 1.5rem;
}

.page-news__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.page-news__filter-link {
  text-decoration: none;
  display: inline-block;
  transition: transform 0.25s ease;
}

.page-news__filter-link:hover {
  transform: translateY(-2px);
}

.page-news__filter-link .tag {
  background: rgba(255, 107, 53, 0.14);
  color: var(--accent);
  border: 1px solid rgba(255, 107, 53, 0.25);
}

.page-news__filter-link .tag:hover {
  background: rgba(255, 107, 53, 0.28);
}

.page-news__section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.page-news__section-index {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(255, 107, 53, 0.4);
}

.page-news__latest {
  padding-top: 1.5rem;
  padding-bottom: 4rem;
}

.page-news__news-banner {
  position: relative;
  width: 100%;
  height: 180px;
  overflow: hidden;
  border-radius: 2px;
  margin-bottom: 2.5rem;
  background: var(--night);
}

.page-news__news-banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.01);
}

.page-news__news-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 31, 58, 0.85) 0%, rgba(11, 31, 58, 0.35) 55%, rgba(11, 31, 58, 0.65) 100%);
  pointer-events: none;
}

.page-news__news-banner-label {
  position: absolute;
  bottom: 1rem;
  left: 1.25rem;
  z-index: 1;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pale);
  background: rgba(11, 31, 58, 0.55);
  padding: 0.3rem 0.7rem;
  border-radius: 2px;
  border-left: 3px solid var(--gold);
}

.page-news__news-list {
  border-top: 1px solid rgba(230, 240, 250, 0.18);
}

.page-news__news-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "newshead newsarrow"
    "newscontent newscontent";
  gap: 0.6rem 1rem;
  padding: 1.4rem 0.6rem;
  border-bottom: 1px solid rgba(230, 240, 250, 0.14);
  transition: background-color 0.3s ease, padding-left 0.3s ease;
}

.page-news__news-item:hover {
  background: rgba(10, 28, 74, 0.55);
  padding-left: 1rem;
}

.page-news__news-head {
  grid-area: newshead;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
}

.page-news__news-index {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--accent);
}

.page-news__news-time {
  font-size: 0.8rem;
  color: var(--gray);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-news__news-arrow {
  grid-area: newsarrow;
  align-self: center;
  color: var(--gray);
  font-size: 1.2rem;
  transition: transform 0.3s ease, color 0.3s ease;
}

.page-news__news-item:hover .page-news__news-arrow {
  transform: translateX(8px);
  color: var(--accent);
}

.page-news__news-content {
  grid-area: newscontent;
}

.page-news__news-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.35rem;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-news__news-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--pale);
  margin: 0;
}

.page-news__news-foot {
  margin-top: 1.5rem;
  color: var(--gray);
}

.page-news__news-foot a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 217, 255, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-news__news-foot a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.page-news .tag {
  background: transparent;
  border: 1px solid rgba(230, 240, 250, 0.2);
  color: var(--pale);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  text-transform: none;
  letter-spacing: 0.02em;
}

.page-news__cat--tip { background: rgba(0, 217, 255, 0.1) !important; color: var(--electric) !important; border-color: rgba(0, 217, 255, 0.35) !important; }
.page-news__cat--feature { background: rgba(255, 107, 53, 0.1) !important; color: var(--accent) !important; border-color: rgba(255, 107, 53, 0.35) !important; }
.page-news__cat--release { background: rgba(212, 175, 55, 0.12) !important; color: var(--gold) !important; border-color: rgba(212, 175, 55, 0.4) !important; }
.page-news__cat--content { background: rgba(138, 43, 226, 0.14) !important; color: #c28aff !important; border-color: rgba(138, 43, 226, 0.4) !important; }
.page-news__cat--insight { background: rgba(138, 155, 181, 0.12) !important; color: var(--pale) !important; border-color: rgba(138, 155, 181, 0.35) !important; }
.page-news__cat--case { background: rgba(212, 175, 55, 0.1) !important; color: var(--gold) !important; border-color: rgba(212, 175, 55, 0.3) !important; }
.page-news__cat--service { background: rgba(0, 217, 255, 0.08) !important; color: var(--electric) !important; border-color: rgba(0, 217, 255, 0.3) !important; }

.page-news__collections {
  padding-top: 3rem;
  padding-bottom: 5rem;
  background: linear-gradient(180deg, var(--primary) 0%, rgba(10, 28, 74, 0.9) 100%);
}

.page-news__collections-lead {
  max-width: 760px;
  color: var(--gray);
  margin-bottom: 2.25rem;
}

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

.page-news__collection-item {
  border: 1px solid rgba(230, 240, 250, 0.16);
  border-radius: 2px;
  background: var(--steel);
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.page-news__collection-item--c1 { --card-accent: var(--news-c1); }
.page-news__collection-item--c2 { --card-accent: var(--news-c2); }
.page-news__collection-item--c3 { --card-accent: var(--news-c3); }

.page-news__collection-item:hover {
  border-color: color-mix(in srgb, var(--card-accent) 55%, transparent);
  transform: translateY(-2px);
}

.page-news__collection-summary {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.25rem 1.25rem 0;
  list-style: none;
  cursor: pointer;
}

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

.page-news__collection-summary::after {
  content: "展开详情";
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 2;
  font-size: 0.7rem;
  color: var(--pale);
  background: rgba(11, 31, 58, 0.78);
  border: 1px solid rgba(230, 240, 250, 0.25);
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.page-news__collection-item[open] .page-news__collection-summary::after {
  content: "收起详情";
  border-color: color-mix(in srgb, var(--card-accent) 60%, transparent);
  background: rgba(11, 31, 58, 0.92);
}

.page-news__collection-head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding-right: 5.5rem;
}

.page-news__collection-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  color: color-mix(in srgb, var(--card-accent) 70%, transparent);
}

.page-news__collection-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--white);
}

.page-news__collection-sub {
  font-size: 0.85rem;
  color: var(--gray);
  padding-right: 5rem;
}

.page-news__collection-summary img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  display: block;
  margin-top: 0.25rem;
}

.page-news__collection-detail {
  padding: 1.25rem;
  background: rgba(10, 28, 74, 0.55);
  animation: page-news-fade-up 0.35s ease-out both;
}

.page-news__collection-detail p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--pale);
  margin: 0 0 1rem 0;
}

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

.page-news__collection-detail-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--pale);
  border-top: 1px dashed rgba(230, 240, 250, 0.14);
  padding-top: 0.45rem;
}

.page-news__collection-detail-list li strong {
  color: var(--white);
  min-width: 72px;
  font-weight: 700;
}

.page-news__changelog {
  padding-top: 3rem;
  padding-bottom: 5rem;
}

.page-news__changelog-lead {
  max-width: 760px;
  color: var(--gray);
  margin-bottom: 2.25rem;
}

.page-news__changelog-list {
  border-left: 2px solid rgba(212, 175, 55, 0.45);
  padding-left: 0.75rem;
}

.page-news__change {
  border-bottom: 1px solid rgba(230, 240, 250, 0.14);
  transition: background-color 0.25s ease;
}

.page-news__change:hover {
  background: rgba(30, 58, 95, 0.25);
}

.page-news__change-summary {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding: 1.15rem 0.5rem;
  cursor: pointer;
}

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

.page-news__change-summary::-moz-list-bullet {
  list-style: none;
}

.page-news__change-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  color: var(--gold);
  font-size: 0.8rem;
  line-height: 1;
  transition: transform 0.28s ease;
}

.page-news__change[open] .page-news__change-icon {
  transform: rotate(90deg);
}

.page-news__change-version {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--gold);
  border: 1px solid rgba(212, 175, 55, 0.45);
  padding: 0.18rem 0.5rem;
  border-radius: 2px;
  background: rgba(212, 175, 55, 0.08);
}

.page-news__change-title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--white);
  flex: 1;
  min-width: 180px;
}

.page-news__change-status {
  font-size: 0.72rem;
  color: var(--gray);
  border: 1px solid rgba(138, 155, 181, 0.3);
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
}

.page-news__change-list {
  list-style: none;
  margin: 0;
  padding: 0.25rem 0 1.25rem 1.4rem;
  display: grid;
  gap: 0.55rem;
  border-top: 1px dashed rgba(230, 240, 250, 0.14);
  animation: page-news-fade-up 0.3s ease-out both;
}

.page-news__change-list li {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--pale);
  position: relative;
  padding-left: 0.75rem;
}

.page-news__change-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 5px;
  height: 5px;
  background: var(--gold);
  border-radius: 50%;
}

.page-news__subscribe {
  padding-top: 2rem;
  padding-bottom: 5rem;
}

.page-news__subscribe-panel {
  display: grid;
  gap: 2rem;
  padding: 1.75rem 1.4rem;
  background: linear-gradient(135deg, rgba(30, 58, 95, 0.7) 0%, rgba(10, 28, 74, 0.95) 100%);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: 2px;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.28);
}

.page-news__subscribe-copy p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--pale);
  margin-top: 0.5rem;
}

.page-news__subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-news__subscribe-note {
  margin-top: 1.25rem;
  color: var(--gray);
}

.page-news__subscribe-note a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 217, 255, 0.35);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-news__subscribe-note a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.page-news__subscribe-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin: 0;
}

.page-news__stat {
  padding: 1rem;
  background: rgba(11, 31, 58, 0.6);
  border-left: 3px solid var(--gold);
  border-radius: 2px;
}

.page-news__stat dt {
  font-size: 0.75rem;
  color: var(--gray);
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.page-news__stat dd {
  font-size: 1.02rem;
  color: var(--white);
  margin: 0;
  font-weight: 600;
  line-height: 1.4;
}

.page-news__stat dd strong {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
}

@keyframes page-news-fade-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 480px) {
  .page-news__news-banner {
    height: 210px;
  }

  .page-news__subscribe-panel {
    padding: 2rem 1.75rem;
  }
}

@media (min-width: 768px) {
  .page-news__news-item {
    grid-template-columns: 1fr auto;
    padding: 1.6rem 1rem;
  }

  .page-news__news-head {
    gap: 0.75rem;
  }

  .page-news__news-title {
    font-size: 1.25rem;
  }

  .page-news__news-banner {
    height: 240px;
  }

  .page-news__news-banner-label {
    bottom: 1.25rem;
    left: 1.5rem;
    font-size: 0.95rem;
  }

  .page-news__collection-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
  }

  .page-news__collection-item--c2 {
    margin-top: 1.25rem;
  }

  .page-news__collection-item--c3 {
    grid-column: 1 / -1;
  }

  .page-news__subscribe-panel {
    grid-template-columns: 1.1fr 0.9fr;
    padding: 2.5rem;
  }

  .page-news__subscribe-actions {
    flex-direction: row;
  }
}

@media (min-width: 992px) {
  .page-news__news-item {
    grid-template-columns: 88px 160px 1fr 36px;
    grid-template-areas: "newsindex newshead newscontent newsarrow";
    align-items: start;
  }

  .page-news__news-head {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    padding-top: 0.15rem;
  }

  .page-news__news-index {
    grid-area: newsindex;
    font-size: 1.7rem;
    line-height: 1.2;
  }

  .page-news__news-content {
    padding-top: 0.15rem;
  }

  .page-news__news-arrow {
    align-self: start;
    padding-top: 0.2rem;
  }

  .page-news__news-banner {
    height: 300px;
    margin-bottom: 3rem;
  }

  .page-news__collection-grid {
    grid-template-columns: 0.9fr 1.1fr 0.9fr;
    grid-template-rows: auto;
  }

  .page-news__collection-item--c2 {
    margin-top: 2.5rem;
  }

  .page-news__collection-item--c3 {
    grid-column: auto;
    margin-top: 1rem;
  }

  .page-news__collection-summary {
    padding: 1.5rem 1.5rem 0;
  }

  .page-news__changelog-list {
    padding-left: 1.25rem;
  }

  .page-news__change-summary {
    padding: 1.25rem 0.75rem;
  }

  .page-news__subscribe-panel {
    grid-template-columns: 1.25fr 0.75fr;
    padding: 3rem;
  }
}