.page-news {
  --page-space: clamp(48px, 8vw, 96px);
}

/* 页头 */
.page-news__header {
  padding: calc(72px + var(--section-space) * .15) 0 32px;
  background:
    radial-gradient(circle at 86% 0%, rgba(62, 124, 79, .16), transparent 44%),
    linear-gradient(180deg, var(--c-paper) 0%, var(--c-mist) 92%);
  border-bottom: 1px solid var(--line-soft);
}

.page-news__intro {
  max-width: 760px;
  padding: 28px 0 8px;
}

.page-news__intro h1 {
  font-size: var(--font-display);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 14px 0 16px;
}

.page-news__intro .lead-text {
  font-size: 1.08rem;
  color: var(--text-sub);
  line-height: 1.8;
  margin: 0;
}

/* 筛选条 */
.page-news__filters {
  position: sticky;
  top: calc(76px + 8px);
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  background: rgba(244, 246, 248, .92);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  padding: 10px 16px;
  margin: 24px 0 0;
  box-shadow: var(--shadow-card);
}

.page-news__filters-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--text-sub);
  margin-right: 4px;
}

/* 最新更新区块 */
.page-news__timeline {
  padding: var(--page-space) 0 48px;
}

.page-news__timeline-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-news__timeline-side h2,
.page-news__release h2,
.page-news__versions h2,
.page-news__stories h2 {
  font-size: var(--font-h2);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 12px 0 8px;
}

.page-news__timeline-desc {
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 420px;
}

.page-news__hero-media {
  aspect-ratio: 16 / 9;
  margin: 12px 0 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.page-news__hero-media img {
  object-position: center 35%;
}

/* 时间轴列表 */
.page-news__timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-news__timeline-list::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-green) 0%, var(--c-blue) 58%, var(--c-orange) 100%);
  border-radius: 2px;
  opacity: .45;
}

.page-news__timeline-item {
  position: relative;
  padding: 0 0 28px 44px;
}

.page-news__timeline-marker {
  position: absolute;
  left: 2px;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--c-paper);
  border: 5px solid var(--c-green);
  box-shadow: 0 0 0 4px rgba(62, 124, 79, .16);
}

.page-news__timeline-marker--blue {
  border-color: var(--c-blue);
  box-shadow: 0 0 0 4px rgba(33, 150, 243, .16);
}

.page-news__timeline-marker--violet {
  border-color: var(--c-violet);
  box-shadow: 0 0 0 4px rgba(127, 90, 240, .16);
}

.page-news__timeline-card {
  background: var(--c-paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease;
}

.page-news__timeline-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-news__timeline-card h3 {
  font-size: 1.08rem;
  line-height: 1.4;
  margin: 8px 0 6px;
  letter-spacing: -0.01em;
}

.page-news__timeline-card p {
  margin: 0;
  color: var(--text-sub);
  font-size: .92rem;
  line-height: 1.7;
}

.page-news__timeline-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .03em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--c-green-soft);
  color: var(--c-green-dark);
}

.page-news__timeline-tag--blue {
  background: var(--c-blue-soft);
  color: var(--c-blue-dark);
}

.page-news__timeline-tag--violet {
  background: var(--c-violet-soft);
  color: var(--c-violet);
}

/* 数据发布 */
.page-news__release {
  padding: 48px 0;
  position: relative;
}

.page-news__release::before {
  content: "";
  position: absolute;
  inset: 24px auto 24px -12px;
  width: 6px;
  background: linear-gradient(180deg, var(--c-orange) 0%, rgba(255, 107, 53, .15) 100%);
  border-radius: 99px;
}

.page-news__release-banner {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--c-orange-soft);
  border: 1px solid rgba(255, 107, 53, .3);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 28px;
}

.page-news__release-icon {
  font-size: 1.6rem;
  line-height: 1;
}

.page-news__release-banner h2 {
  margin: 6px 0 4px;
  font-size: 1.35rem;
}

.page-news__release-banner p {
  margin: 0;
  color: var(--text-sub);
  font-size: .92rem;
  line-height: 1.7;
}

.page-news__release-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}

.page-news__release-image {
  aspect-ratio: 4 / 3;
  margin: 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.page-news__release-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news__release-list li {
  background: var(--c-paper);
  border: 1px solid var(--line-soft);
  border-left: 4px solid var(--c-green);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--text-main);
}

.page-news__release-list strong {
  font-size: .84rem;
  font-weight: 800;
  letter-spacing: .06em;
  display: block;
  color: var(--c-green-dark);
  margin-bottom: 2px;
}

/* 版本迭代 */
.page-news__versions {
  background: var(--c-paper);
  padding: 48px 0;
  margin: 16px 0;
}

.page-news__versions-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.page-news__versions-head > p {
  margin: 0;
  color: var(--text-sub);
  max-width: 480px;
  line-height: 1.7;
}

.page-news__versions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

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

.page-news__version-item {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news__version-item:first-child {
  padding-top: 0;
}

.page-news__version-num {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--c-blue-dark);
  background: var(--c-blue-soft);
  border-radius: var(--radius-pill);
  padding: 8px 12px;
  text-align: center;
  align-self: start;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-news__version-body h3 {
  font-size: 1.04rem;
  line-height: 1.4;
  margin: 0 0 4px;
}

.page-news__version-body p {
  margin: 0;
  color: var(--text-sub);
  font-size: .9rem;
  line-height: 1.65;
}

.page-news__versions-image {
  aspect-ratio: 10 / 7;
  margin: 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* 专题文章 */
.page-news__stories {
  padding: 56px 0 48px;
}

.page-news__stories-head {
  margin-bottom: 28px;
}

.page-news__stories-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-news__story-card {
  background: var(--c-paper);
  border: 1px solid var(--line-soft);
  border-top: 4px solid var(--c-green);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease;
}

.page-news__story-card:nth-child(2) {
  border-top-color: var(--c-blue);
}

.page-news__story-card:nth-child(3) {
  border-top-color: var(--c-violet);
}

.page-news__story-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.page-news__story-meta {
  font-weight: 800;
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--c-green-dark);
}

.page-news__story-card:nth-child(2) .page-news__story-meta {
  color: var(--c-blue-dark);
}

.page-news__story-card:nth-child(3) .page-news__story-meta {
  color: var(--c-violet);
}

.page-news__story-card h3 {
  font-size: 1.18rem;
  line-height: 1.4;
  margin: 0;
  letter-spacing: -0.01em;
}

.page-news__story-card p {
  margin: 0;
  color: var(--text-sub);
  font-size: .92rem;
  line-height: 1.7;
}

.page-news__story-more {
  margin-top: auto;
  font-size: .8rem;
  color: var(--text-sub);
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

.page-news__stories-media {
  aspect-ratio: 21 / 9;
  margin: 28px 0 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.page-news__stories-media img {
  object-position: center 40%;
}

/* 桌面断点 */
@media (min-width: 768px) {
  .page-news__release-grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  }

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

@media (min-width: 1024px) {
  .page-news__timeline-inner {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.4fr);
    gap: 48px;
    align-items: start;
  }

  .page-news__timeline-side {
    position: sticky;
    top: 140px;
  }

  .page-news__release {
    padding: 64px 0;
  }

  .page-news__versions {
    padding: 64px 0;
    margin: 24px 0;
  }

  .page-news__versions-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 48px;
  }

  .page-news__stories {
    padding: 72px 0 64px;
  }

  .page-news__story-card:nth-child(2) {
    transform: translateY(-16px);
  }

  .page-news__story-card:nth-child(3) {
    transform: translateY(8px);
  }

  .page-news__story-card:nth-child(2):hover {
    transform: translateY(-20px);
  }

  .page-news__story-card:nth-child(3):hover {
    transform: translateY(4px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}