.page-news {
  --news-deep: #233240;
  --news-card-bg: #F5F5F5;
  --news-card-ink: #2C3E50;
  --news-soft-border: rgba(255, 255, 255, 0.3);
  --news-muted-ink: #4a5c6e;
  background: var(--bg-primary);
  color: var(--text-main);
}

.page-news .container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.page-news__context {
  padding: calc(var(--header-height) + 24px) 0 24px;
}

.page-news__context .breadcrumb {
  margin-bottom: 16px;
}

.page-news__context h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 28px;
  line-height: 1.2;
  margin: 0 0 14px;
  color: var(--text-main);
}

.page-news__context-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.page-news__context-chip {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--news-soft-border);
  color: var(--text-main);
  border-radius: 4px;
  padding: 4px 12px;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-news__context-meta {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.65;
  margin: 0;
  max-width: 760px;
}

.page-news__block-head {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.page-news__block-title {
  flex: 1 1 180px;
}

.page-news__block-title h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 24px;
  line-height: 1.2;
  margin: 0;
  color: var(--text-main);
}

.page-news__block-title p {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}

.page-news .section-orange .page-news__block-title h2 {
  color: var(--text-dark);
}

.page-news .section-orange .page-news__block-title p {
  color: rgba(44, 62, 80, 0.7);
}

.page-news .section-purple .page-news__block-title h2 {
  color: #fff;
}

.page-news .section-purple .page-news__block-title p {
  color: rgba(236, 240, 241, 0.72);
}

.page-news__batch-icon {
  width: 30px;
  height: 30px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--border-card);
  display: block;
  flex-shrink: 0;
}

.page-news__today,
.page-news__history,
.page-news__versions {
  padding: 40px 0 48px;
}

.page-news__batch-intro {
  background: rgba(255, 255, 255, 0.22);
  border-left: 4px solid var(--border-card);
  color: var(--text-dark);
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 22px;
}

.page-news__batch-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news__batch-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  background: var(--news-card-bg);
  color: var(--news-card-ink);
  padding: 12px 14px;
  border-left: 4px solid var(--border-card);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.page-news__batch-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-lift);
}

.page-news__batch-item .seq-marker {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  color: var(--border-card);
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
  margin: 0;
}

.page-news__batch-name {
  font-weight: 700;
  color: var(--news-card-ink);
  font-size: 15px;
  flex: 1 1 160px;
}

.page-news__batch-duration,
.page-news__batch-date {
  font-size: 12px;
  color: var(--news-muted-ink);
  background: rgba(44, 62, 80, 0.07);
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.page-news__batch-extra {
  margin-top: 20px;
}

.page-news .section-orange .btn-ghost {
  color: var(--text-dark);
  border-color: var(--text-dark);
}

.page-news__history {
  background: var(--bg-section-b);
}

.page-news__history-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.page-news__history-icon {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--border-card);
  flex-shrink: 0;
  display: block;
}

.page-news__history .seq-marker {
  color: var(--border-card);
}

.page-news__timeline {
  display: flex;
  flex-direction: column;
}

.page-news__milestone {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  position: relative;
}

.page-news__milestone-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-news__batch-num {
  width: 50px;
  height: 50px;
  background: var(--status-updating);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  flex-shrink: 0;
}

.page-news__batch-num--current {
  background: var(--status-new);
  box-shadow: 0 0 24px rgba(231, 76, 60, 0.45);
}

.page-news__rail-line {
  width: 2px;
  flex: 1;
  min-height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.06));
}

.page-news__milestone:last-child .page-news__rail-line {
  background: transparent;
}

.page-news__milestone-content {
  padding-bottom: 24px;
}

.page-news__milestone-content h3 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.3;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: #fff;
}

.page-news__milestone-content p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(236, 240, 241, 0.92);
}

.page-news__jump-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--border-card);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-news__batch-detail {
  margin-top: 12px;
  border-top: 1px dashed rgba(255, 255, 255, 0.22);
  padding-top: 10px;
}

.page-news__batch-detail summary {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: rgba(236, 240, 241, 0.72);
  list-style: none;
  transition: color 0.2s var(--ease-out);
  user-select: none;
}

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

.page-news__batch-detail[open] summary {
  color: var(--accent);
}

.page-news__batch-detail-list {
  margin: 10px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.page-news__batch-detail-list li {
  font-size: 14px;
  line-height: 1.55;
  color: rgba(236, 240, 241, 0.92);
}

.page-news__versions {
  background: var(--news-deep);
}

.page-news__versions-head {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-news__version-art {
  max-width: 300px;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--border-card);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  display: block;
}

.page-news__versions-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 20px;
}

.page-news__version-item {
  background: rgba(255, 255, 255, 0.05);
  border-left: 4px solid var(--bg-section-b);
  padding: 18px;
  transition: background 0.2s var(--ease-out);
}

.page-news__version-item:hover {
  background: rgba(255, 255, 255, 0.09);
}

.page-news__version-item:nth-child(2) {
  border-left-color: var(--bg-section-a);
  background: rgba(230, 126, 34, 0.1);
}

.page-news__version-item:nth-child(3) {
  border-left-color: var(--accent);
  background: rgba(46, 204, 113, 0.08);
}

.page-news__version-body h3,
.page-news__adapt-copy h3 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--text-main);
}

.page-news__version-body p,
.page-news__adapt-copy p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-main);
  margin: 0 0 10px;
}

.page-news__adapt-row {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--news-soft-border);
  padding: 16px;
  margin-bottom: 24px;
}

.page-news__version-icon {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--news-soft-border);
  display: block;
}

.page-news__adapt-copy h3 {
  font-size: 16px;
}

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

@media (min-width: 760px) {
  .page-news__context {
    padding: calc(var(--header-height) + 32px) 0 32px;
  }

  .page-news__context h1 {
    font-size: 44px;
  }

  .page-news__block-title h2 {
    font-size: 32px;
  }

  .page-news__today,
  .page-news__history,
  .page-news__versions {
    padding: 56px 0 64px;
  }

  .page-news__batch-intro {
    font-size: 15px;
  }

  .page-news__batch-item {
    padding: 14px 18px;
  }

  .page-news__batch-name {
    font-size: 16px;
  }

  .page-news__milestone {
    grid-template-columns: 64px 1fr;
    gap: 24px;
  }

  .page-news__batch-num {
    width: 58px;
    height: 58px;
    font-size: 24px;
  }

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

@media (min-width: 1024px) {
  .page-news__adapt-row {
    grid-template-columns: 44px minmax(0, 1fr);
  }
}