/* ===== 新闻中心页面专属样式（限定 .page-news 作用域） ===== */
.page-news {
  background: var(--color-bg);
  --news-line: #C7CFDC;
  --news-tag-func-bg: #FFF0E8;
  --news-tag-func-ink: #D9491A;
  --news-tag-cover-bg: #EAF2FF;
  --news-tag-cover-ink: #0A1F44;
  --news-tag-data-bg: #E8F7EF;
  --news-tag-data-ink: #137A42;
}

/* ---- 页头区：深蓝驾驶舱 + 橙色斜切 ---- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: 2.25rem 0 2.75rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 86%);
  color: #FFFFFF;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  right: -5rem;
  top: -4rem;
  width: 17rem;
  height: 17rem;
  background: var(--color-accent);
  clip-path: polygon(35% 0%, 100% 0%, 100% 70%, 0% 85%, 0% 35%);
  opacity: 0.14;
  pointer-events: none;
}

.page-news .news-hero .breadcrumb {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.6);
}

.page-news .news-hero .breadcrumb-item {
  color: rgba(255, 255, 255, 0.6);
}

.page-news .news-hero .breadcrumb-item a {
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-news .news-hero .breadcrumb-item a:hover {
  color: var(--color-accent);
}

.page-news .news-hero .breadcrumb-item[aria-current="page"] {
  color: var(--color-accent);
}

.page-news .news-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
}

.page-news .news-hero-copy {
  max-width: 46rem;
}

.page-news .news-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  color: var(--color-accent);
}

.page-news .news-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 6.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: #FFFFFF;
}

.page-news .news-hero-desc {
  max-width: 40rem;
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
}

.page-news .news-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-news .news-hero .btn-outline {
  border-color: rgba(255, 255, 255, 0.42);
  color: #FFFFFF;
  background: transparent;
}

.page-news .news-hero .btn-outline:hover {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.06);
}

.page-news .news-hero .btn-accent {
  color: #FFFFFF;
}

.page-news .news-hero .btn-accent:hover {
  background: var(--color-accent-light);
}

.page-news .news-hero-side {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.page-news .news-stat-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.1rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(6px);
  min-width: 0;
}

.page-news .news-stat-num {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--color-accent);
  white-space: nowrap;
}

.page-news .news-stat-label {
  font-size: 0.72rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.68);
}

/* ---- 主体区块 ---- */
.page-news .news-section {
  padding: 2.75rem 0;
}

.page-news .news-section + .news-section {
  border-top: 1px solid var(--color-border);
}

/* ---- 最新动态头图 ---- */
.page-news .news-feature-media {
  position: relative;
  margin: 1.75rem 0 0.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

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

/* ---- 动态分类筛选 ---- */
.page-news .news-filter-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 1.5rem 0 2.25rem;
}

.page-news .news-filter-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.page-news .news-filter-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.page-news .news-filter-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: #FFF9F5;
}

/* ---- 最新动态时间线 ---- */
.page-news .news-timeline {
  display: grid;
  gap: 1.25rem;
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 1.5rem minmax(0, 1fr);
  column-gap: 0.75rem;
}

.page-news .news-item-time {
  grid-column: 1 / -1;
  margin-bottom: 0.25rem;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--color-primary-light);
  text-transform: uppercase;
}

.page-news .news-item-line {
  position: relative;
}

.page-news .news-item-line::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 1rem;
  bottom: -1.25rem;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--news-line));
  transform: translateX(-50%);
}

.page-news .news-item:last-child .news-item-line::before {
  height: 1.25rem;
  bottom: auto;
}

.page-news .news-item-line::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0.5rem;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 4px var(--color-accent);
  transform: translateX(-50%);
}

.page-news .news-item-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-news .news-item-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.page-news .news-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.6rem;
}

.page-news .news-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-news .news-tag-func {
  background: var(--news-tag-func-bg);
  color: var(--news-tag-func-ink);
}

.page-news .news-tag-cover {
  background: var(--news-tag-cover-bg);
  color: var(--news-tag-cover-ink);
}

.page-news .news-tag-data {
  background: var(--news-tag-data-bg);
  color: var(--news-tag-data-ink);
}

.page-news .news-item-version {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

.page-news .news-item-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 900;
  line-height: 1.35;
  color: var(--color-text);
}

.page-news .news-item-card > p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.page-news .news-details {
  margin-top: 0.75rem;
}

.page-news .news-details summary {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
}

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

.page-news .news-details summary::after {
  content: "+";
  font-size: 1rem;
  font-weight: 900;
  transition: transform 0.2s ease;
}

.page-news .news-details[open] summary::after {
  transform: rotate(45deg);
}

.page-news .news-details-body {
  border-top: 1px dashed var(--color-border);
  margin-top: 0.6rem;
  padding-top: 0.6rem;
}

.page-news .news-details-body p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--color-text);
}

/* ---- 更新分类 ---- */
.page-news .news-cat-section {
  background: var(--color-surface);
}

.page-news .news-cat-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
  align-items: stretch;
}

.page-news .news-cat-card {
  scroll-margin-top: 80px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-news .news-cat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.page-news .news-cat-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-primary);
}

.page-news .news-cat-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.page-news .news-cat-card:hover .news-cat-media img {
  transform: scale(1.03);
}

.page-news .news-cat-body {
  position: relative;
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page-news .news-cat-index {
  position: absolute;
  top: -1.1rem;
  right: 1.25rem;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-surface);
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(6, 19, 43, 0.18);
}

.page-news .news-cat-body h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--color-text);
}

.page-news .news-cat-body > p {
  margin: 0 0 0.85rem;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.page-news .news-cat-body ul {
  margin: 0 0 0.85rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.35rem;
}

.page-news .news-cat-body ul li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--color-text);
}

.page-news .news-cat-body ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 0.45rem;
  height: 2px;
  background: var(--color-accent);
}

.page-news .news-cat-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: auto;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.page-news .news-cat-more::after {
  content: "→";
  transition: transform 0.2s ease;
}

.page-news .news-cat-more:hover::after {
  transform: translateX(3px);
}

/* ---- 历史归档 ---- */
.page-news .news-archive-section {
  background: linear-gradient(180deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #FFFFFF;
}

.page-news .news-archive-section .section-index,
.page-news .news-archive-section .section-title {
  color: #FFFFFF;
}

.page-news .news-archive-section .section-more {
  color: rgba(255, 255, 255, 0.55);
}

.page-news .news-archive-section + .news-section {
  border-top: none;
}

.page-news .news-archive-timeline {
  display: grid;
  gap: 0.9rem;
  margin-top: 2.25rem;
}

.page-news .archive-item {
  display: grid;
  grid-template-columns: 3.5rem 1.25rem minmax(0, 1fr);
  column-gap: 0.75rem;
  align-items: start;
}

.page-news .archive-year {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  padding-top: 0.5rem;
}

.page-news .archive-dot {
  width: 0.55rem;
  height: 0.55rem;
  margin-top: 0.6rem;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-primary-dark);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.page-news .archive-content {
  padding: 0.85rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.page-news .archive-content:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.2);
}

.page-news .archive-content h3 {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
  font-weight: 800;
  color: #FFFFFF;
}

.page-news .archive-content p {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.6);
}

.page-news .news-archive-cta {
  margin-top: 2.5rem;
  padding: 1.75rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.05);
  text-align: center;
}

.page-news .news-archive-cta h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 900;
  color: #FFFFFF;
}

.page-news .news-archive-cta p {
  margin: 0 auto 1.25rem;
  max-width: 32rem;
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.page-news .news-archive-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.page-news .news-archive-cta .btn-outline {
  border-color: rgba(255, 255, 255, 0.42);
  color: #FFFFFF;
  background: transparent;
}

.page-news .news-archive-cta .btn-outline:hover {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.06);
}

/* ---- 滚动显现 ---- */
.page-news [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.page-news [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-news [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---- 平板与桌面布局 ---- */
@media (min-width: 768px) {
  .page-news .news-hero {
    padding: 3.5rem 0 4rem;
  }

  .page-news .news-hero::before {
    right: -6rem;
    top: -7rem;
    width: 26rem;
    height: 26rem;
  }

  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 1fr) 15rem;
    gap: 3rem;
    align-items: end;
  }

  .page-news .news-hero-side {
    grid-template-columns: 1fr;
  }

  .page-news .news-stat-num {
    font-size: 1.6rem;
  }

  .page-news .news-section {
    padding: 4rem 0;
  }

  .page-news .news-item {
    grid-template-columns: 7rem 2rem minmax(0, 1fr);
    column-gap: 1rem;
  }

  .page-news .news-item-time {
    grid-column: auto;
    margin-bottom: 0;
    padding-top: 0.6rem;
    text-align: right;
  }

  .page-news .news-item-card {
    padding: 1.25rem 1.5rem;
  }

  .page-news .news-cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-news .archive-item {
    grid-template-columns: 5rem 1.5rem minmax(0, 1fr);
    column-gap: 1rem;
  }

  .page-news .archive-content {
    padding: 1rem 1.25rem;
  }

  .page-news .news-archive-cta {
    padding: 2.25rem;
  }
}

@media (min-width: 1024px) {
  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 1fr) 17rem;
    gap: 4rem;
  }

  .page-news .news-timeline {
    max-width: 58rem;
  }
}