/* ===== 文章中心页 · 页面专属样式 ===== */
.page-news {
  --news-line: rgba(15, 42, 67, .14);
}

/* 面包屑 */
.page-news .news-breadcrumbs {
  padding-top: var(--space-5);
}

/* 报头 */
.page-news .news-masthead {
  padding-block: var(--space-6) var(--space-5);
}
.page-news .news-masthead__inner {
  display: grid;
  gap: var(--space-6);
  align-items: end;
}
.page-news .news-title {
  margin: var(--space-3) 0 var(--space-4);
  line-height: 1.06;
  max-width: 16em;
}
.page-news .news-masthead__lead {
  max-width: 68ch;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-muted);
  margin: 0;
}
.page-news .news-masthead__stat {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  justify-self: start;
  background: var(--color-bg-light);
  border: 2px solid var(--color-secondary);
  box-shadow: 6px 6px 0 0 var(--color-primary);
  transform: rotate(-1deg);
}
.page-news .news-masthead__stat-label {
  font-size: .8125rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--color-muted);
}

/* 分类筛选条 */
.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) 0 var(--space-5);
  margin-bottom: var(--space-7);
  border-bottom: 1px solid var(--news-line);
}
.page-news .news-filter__label {
  font-size: .9375rem;
  font-weight: 800;
  letter-spacing: .03em;
  color: var(--color-secondary);
  white-space: nowrap;
}
.page-news .news-filter__group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.page-news .news-filter .btn.is-active,
.page-news .news-filter .btn[aria-pressed="true"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* 主布局 */
.page-news .news-layout {
  padding-bottom: var(--space-8);
}
.page-news .news-layout__main {
  display: grid;
  gap: var(--space-8);
}

/* 横向主题带 */
.page-news .news-band {
  position: relative;
  padding: var(--space-5);
  background: var(--color-bg-light);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .6) inset;
}
.page-news .news-band::before {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -6px;
  height: 10px;
  background: rgba(15, 42, 67, .08);
  border-radius: 0 0 12px 12px;
  z-index: -1;
}
.page-news .news-band--season {
  border-top: 4px solid var(--color-primary);
}
.page-news .news-band--guide {
  border-top: 4px solid var(--color-teal);
  background: linear-gradient(180deg, var(--color-bg-light) 0%, #EFF8F6 100%);
}
.page-news .news-band--version {
  border-top: 4px solid var(--color-highlight);
  background: var(--color-secondary);
  color: #fff;
}
.page-news .news-band--version::before {
  display: none;
}

/* 带标题 */
.page-news .news-band__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.page-news .news-band__heading {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.page-news .news-band__index {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  opacity: .9;
}
.page-news .news-band--guide .news-band__index {
  color: var(--color-teal-dark);
}
.page-news .news-band--version .news-band__index {
  color: var(--color-highlight);
}
.page-news .news-band__title {
  margin: var(--space-2) 0 0;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.page-news .news-band--version .news-band__title {
  color: #fff;
}
.page-news .news-band--guide .news-band__title {
  color: var(--color-secondary);
}
.page-news .news-band--version .kicker {
  color: var(--color-highlight);
}
.page-news .news-band__hint {
  max-width: 24ch;
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-primary);
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--color-muted);
}
.page-news .news-band--version .news-band__hint {
  color: rgba(255, 255, 255, .72);
  border-left-color: var(--color-highlight);
}
.page-news .news-band--guide .news-band__hint {
  border-left-color: var(--color-teal);
}

/* 文章网格 */
.page-news .news-band__grid {
  display: grid;
  gap: var(--space-5);
}

/* 文章卡片 */
.page-news .news-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--news-line);
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .35s ease, box-shadow .35s ease;
}
.page-news .news-card:hover,
.page-news .news-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.page-news .news-card--tilt {
  transform: rotate(.6deg);
}
.page-news .news-card--tilt:hover {
  transform: rotate(.2deg) translateY(-4px);
}
.page-news .news-card--step {
  border-left-color: var(--color-highlight);
}
.page-news .news-card--paper {
  border-left-color: var(--color-teal);
}

/* 纸张折角 */
.page-news .news-card--step::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  border-top: 44px solid var(--color-primary);
  border-left: 44px solid transparent;
  z-index: 2;
}
.page-news .news-card--paper::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  border-bottom: 30px solid var(--color-teal);
  border-right: 30px solid transparent;
  z-index: 2;
  opacity: .7;
}

/* 卡片媒体 */
.page-news .news-card__media {
  aspect-ratio: 2 / 1;
  overflow: hidden;
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--news-line);
}
.page-news .news-card__media--tile {
  aspect-ratio: 4 / 3;
}
.page-news .news-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.page-news .news-card:hover .news-card__media img {
  transform: scale(1.03);
}

/* 卡片正文 */
.page-news .news-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--space-5);
}
.page-news .news-card--step .news-card__body {
  padding-right: calc(var(--space-5) + 16px);
}
.page-news .news-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.page-news .news-card__time {
  font-size: .75rem;
  color: var(--color-muted);
}
.page-news .news-card__title {
  margin: 0 0 var(--space-3);
  font-size: 1.25rem;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--color-text);
}
.page-news .news-card--feature .news-card__title {
  color: var(--color-secondary);
  font-size: 1.35rem;
}
.page-news .news-card__excerpt {
  margin: 0 0 var(--space-4);
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--color-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.page-news .news-card:hover .news-card__excerpt,
.page-news .news-card:focus-within .news-card__excerpt {
  -webkit-line-clamp: 8;
}

/* 卡片底部 */
.page-news .news-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px dashed var(--news-line);
}
.page-news .news-card__stamp {
  margin-left: auto;
  padding: 2px 8px;
  font-size: .6875rem;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--color-primary);
  border: 2px solid currentColor;
  border-radius: 2px;
  transform: rotate(-2deg);
  white-space: nowrap;
}

/* 侧边栏 */
.page-news .news-aside {
  display: grid;
  gap: var(--space-6);
  align-content: start;
}
.page-news .news-aside__card {
  padding: var(--space-5);
  border-left: 5px solid var(--color-teal);
}
.page-news .news-aside__title {
  margin: 0 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-secondary);
  font-size: 1.125rem;
  letter-spacing: -.01em;
}
.page-news .news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.page-news .news-tags .tag {
  font-size: .8125rem;
  border-radius: 999px;
}

/* 信源印刷框 */
.page-news .news-aside__frame {
  padding: var(--space-5);
  box-shadow: 5px 5px 0 0 rgba(255, 77, 46, .14);
}
.page-news .news-aside__note {
  margin: var(--space-3) 0 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--color-muted);
}

/* 功能直达 */
.page-news .news-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}
.page-news .news-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-light);
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  font-size: .9375rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-decoration: none;
  transition: border-color .25s ease, background .25s ease, color .25s ease;
}
.page-news .news-links a:hover {
  background: #fff;
  border-color: var(--color-teal);
  color: var(--color-teal-dark);
}
.page-news .news-links a::after {
  content: '→';
  font-weight: 800;
  color: var(--color-primary);
}

/* 平板及以上：卡片双列 · 瀑布错落 */
@media (min-width: 680px) {
  .page-news .news-band__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: var(--space-6);
  }
  .page-news .news-band__grid > :nth-child(even) {
    margin-top: var(--space-6);
  }
  .page-news .news-card--feature .news-card__title {
    font-size: 1.45rem;
  }
}

/* 桌面：报头双栏 + 主体与侧栏双栏 */
@media (min-width: 1024px) {
  .page-news .news-masthead__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-8);
  }
  .page-news .news-masthead__lead {
    margin-bottom: 0;
  }
  .page-news .news-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--space-7);
    align-items: start;
  }
  .page-news .news-aside {
    position: sticky;
    top: var(--space-6);
  }
  .page-news .news-band {
    padding: var(--space-6);
  }
  .page-news .news-band--version {
    margin-left: 3%;
  }
  .page-news .news-band__title {
    font-size: 1.625rem;
  }
}