.page-news {
  --page-news-line: rgba(27, 94, 32, 0.18);
  --page-news-line-strong: rgba(27, 94, 32, 0.34);
  --page-news-orange-soft: rgba(255, 109, 0, 0.12);
  --page-news-blue-soft: rgba(13, 71, 161, 0.22);
  position: relative;
  background-color: var(--color-dark);
  color: var(--color-text);
}

.page-news::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--page-news-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--page-news-line) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: 0;
}

.page-news .container {
  position: relative;
  z-index: 1;
}

/* 面包屑 */
.page-news .breadcrumb {
  padding: calc(var(--header-height) + 24px) 20px 0;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
}

.page-news .breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.page-news .breadcrumb .breadcrumb__sep {
  margin: 0 8px;
  color: var(--color-green);
}

/* Hero 首屏 */
.page-news__hero {
  position: relative;
  padding: 56px 0 60px;
}

.page-news__hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: -6%;
  width: 46%;
  height: 100%;
  background: linear-gradient(115deg, transparent 24%, var(--page-news-orange-soft) 50%, transparent 74%);
  pointer-events: none;
  z-index: 0;
}

.page-news__hero .section-index {
  color: var(--color-orange);
}

.page-news__hero h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.08;
  font-size: clamp(1.75rem, 5.2vw, 3.4rem);
  max-width: 13em;
  margin: 16px 0 20px;
  color: var(--color-text);
  position: relative;
  z-index: 1;
}

.page-news__hero-lead {
  max-width: 720px;
  color: var(--color-muted);
  font-size: 0.98rem;
  line-height: 1.85;
  margin-bottom: 26px;
  position: relative;
  z-index: 1;
}

.page-news__hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: relative;
  z-index: 1;
}

.page-news__hero-tags .tag {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

/* 区块标题 */
.page-news__section-head {
  max-width: 760px;
  margin-bottom: 36px;
}

.page-news__section-head .section-title {
  font-size: clamp(1.55rem, 3.4vw, 2.35rem);
  margin: 8px 0 12px;
  line-height: 1.12;
}

.page-news__section-head .section-caption {
  color: var(--color-muted);
  line-height: 1.7;
  font-size: 0.92rem;
}

/* 时间线：最新动态 */
.page-news__timeline {
  position: relative;
  margin-top: 10px;
}

.page-news__timeline::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-orange) 0%, var(--color-green) 55%, var(--color-gold) 100%);
  opacity: 0.55;
}

.page-news__timeline-item {
  position: relative;
  padding-left: 52px;
  margin-bottom: 30px;
}

.page-news__timeline-marker {
  position: absolute;
  left: 4px;
  top: 26px;
  width: 22px;
  height: 22px;
  border: 2px solid var(--color-orange);
  background: var(--color-dark);
  transform: rotate(45deg);
  box-shadow: 0 0 0 5px var(--page-news-orange-soft);
  z-index: 1;
}

.page-news__article-card {
  background: linear-gradient(135deg, rgba(18, 18, 18, 0.78), rgba(27, 94, 32, 0.2));
  border: 1px solid var(--page-news-line-strong);
  padding: 24px 22px;
  position: relative;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.page-news__article-card::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  border: 10px solid transparent;
  border-right-color: rgba(255, 215, 0, 0.45);
  border-bottom-color: rgba(255, 215, 0, 0.45);
  pointer-events: none;
}

.page-news__article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 40px rgba(11, 26, 11, 0.55);
  border-color: rgba(27, 94, 32, 0.6);
}

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

.page-news__article-tags .tag {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background 0.3s ease, color 0.3s ease;
}

.page-news__article-tags .tag:hover {
  filter: brightness(1.16);
}

.page-news__article-card h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.page-news__article-card > p {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 18px;
}

.page-news__article-card img {
  width: 100%;
  height: auto;
  display: block;
  margin-bottom: 16px;
  border: 1px solid var(--page-news-line-strong);
}

.page-news__article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--color-muted);
  letter-spacing: 0.05em;
  border-top: 1px dashed var(--page-news-line-strong);
  padding-top: 12px;
}

.page-news__read-icon {
  display: inline-flex;
  color: var(--color-orange);
  margin-right: -12px;
}

.page-news__article-index {
  margin-left: auto;
  color: var(--color-gold);
}

/* 展开摘要 */
.page-news__details {
  margin-top: 14px;
}

.page-news__details summary {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-data);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-orange);
  list-style: none;
  user-select: none;
}

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

.page-news__details summary::before {
  content: '＋';
  display: inline-block;
  color: var(--color-orange);
  font-weight: 700;
  transition: transform 0.3s ease;
}

.page-news__details[open] summary::before {
  content: '－';
  transform: rotate(180deg);
}

.page-news__details-body {
  margin-top: 12px;
  padding: 14px 16px;
  border-left: 2px solid var(--color-orange);
  background: rgba(13, 71, 161, 0.14);
  color: var(--color-muted);
  font-size: 0.87rem;
  line-height: 1.75;
  border-radius: 0 4px 4px 0;
}

.page-news__details[open] .page-news__details-body {
  animation: page-news-reveal 0.35s ease;
}

@keyframes page-news-reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 专题观察 */
.page-news__feature {
  background:
    radial-gradient(ellipse 80% 70% at 85% 15%, var(--page-news-blue-soft), transparent 70%),
    linear-gradient(135deg, rgba(27, 94, 32, 0.16), transparent 50%);
}

.page-news__feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-news__feature-main {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--page-news-line-strong);
  background: rgba(11, 26, 11, 0.5);
  padding: 22px;
}

.page-news__feature-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: -30%;
  width: 70%;
  height: 100%;
  background: linear-gradient(100deg, transparent 20%, rgba(255, 215, 0, 0.08) 50%, transparent 80%);
  transform: skewX(-12deg);
  pointer-events: none;
}

.page-news__feature-main img {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 18px;
  object-fit: cover;
}

.page-news__feature-main h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  margin: 0 0 12px;
  line-height: 1.2;
}

.page-news__feature-main p {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 18px;
}

.page-news__feature-side {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.page-news__feature-side .data-card {
  min-height: 108px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* 数据报告 */
.page-news__report-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-news__report-table {
  overflow-x: auto;
}

.page-news__report-summary {
  background: linear-gradient(135deg, rgba(13, 71, 161, 0.2), rgba(11, 26, 11, 0.4));
  border: 1px solid var(--page-news-line-strong);
  padding: 24px 22px;
}

.page-news__report-summary h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin: 0 0 12px;
}

.page-news__report-summary > p {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 20px;
}

.page-news__report-stats {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-news__report-stats li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px dashed var(--page-news-line-strong);
  padding: 10px 0;
  font-size: 0.82rem;
  color: var(--color-muted);
}

.page-news__report-stats b {
  font-family: var(--font-data);
  font-size: 1.15rem;
  color: var(--color-orange);
  white-space: nowrap;
}

/* 版本日志 */
.page-news__changelog {
  background:
    radial-gradient(circle at 8% 85%, rgba(255, 215, 0, 0.07), transparent 36%),
    linear-gradient(180deg, rgba(27, 94, 32, 0.1), transparent 40%);
}

.page-news__changelog-list {
  display: grid;
  gap: 22px;
}

.page-news__changelog-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  background: rgba(18, 18, 18, 0.6);
  border: 1px solid var(--page-news-line-strong);
  border-left: 3px solid var(--color-gold);
  padding: 22px 20px;
  position: relative;
}

.page-news__changelog-version {
  font-family: var(--font-data);
  font-size: 1.45rem;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  line-height: 1;
  padding-top: 2px;
  min-width: 52px;
  text-align: center;
}

.page-news__changelog-body h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin: 0 0 8px;
}

.page-news__changelog-body p {
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.75;
  margin-bottom: 14px;
}

.page-news__changelog-body img {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  border: 1px solid var(--page-news-line-strong);
}

/* 探索区 */
.page-news__explore {
  padding: 52px 0 72px;
  border-top: 1px solid var(--page-news-line-strong);
  background: linear-gradient(180deg, rgba(27, 94, 32, 0.1), rgba(11, 26, 11, 0.2));
}

.page-news__explore .section-index {
  margin-bottom: 18px;
}

.page-news__explore-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
}

.page-news__explore-links a {
  font-family: var(--font-heading);
  font-size: 1.02rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.page-news__explore-links a:hover {
  color: var(--color-orange);
  border-color: var(--color-orange);
}

/* 桌面端 */
@media (min-width: 768px) {
  .page-news .breadcrumb {
    padding-left: 0;
    padding-right: 0;
  }

  .page-news__hero {
    padding: 72px 0 84px;
  }

  .page-news__hero h1 {
    max-width: 11em;
  }

  .page-news__timeline-item {
    padding-left: 64px;
  }

  .page-news__timeline::before {
    left: 16px;
  }

  .page-news__timeline-marker {
    left: 5px;
    top: 30px;
  }

  .page-news__article-card {
    padding: 28px 30px;
  }

  .page-news__feature-side {
    grid-template-columns: 1fr;
    align-content: start;
  }

  .page-news__feature-side .data-card {
    min-height: 100px;
  }

  .page-news__report-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-news__changelog-item {
    grid-template-columns: 80px 1fr;
    gap: 24px;
    padding: 26px 28px;
  }

  .page-news__changelog-version {
    font-size: 1.8rem;
    text-align: left;
    padding-top: 0;
  }
}

@media (min-width: 1024px) {
  .page-news__timeline-item {
    width: 86%;
  }

  .page-news__timeline-item:nth-child(even) {
    margin-left: auto;
  }

  .page-news__timeline-item:nth-child(even) .page-news__article-card {
    border-left: 3px solid var(--color-orange);
  }

  .page-news__feature-grid {
    grid-template-columns: 1.6fr 1fr;
    gap: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}