/* ========== 内容专栏 / news 页面专属样式 ========== */
.page-news {
  background: var(--light);
  color: var(--text-dark);
}

.page-news .breadcrumb {
  background: var(--blue-900);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.7);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

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

/* ---------- Hero 海报区 ---------- */
.page-news-hero {
  background: var(--blue-900);
  color: var(--white);
  padding: 3rem 1.25rem 4.5rem;
  position: relative;
  overflow: hidden;
}

.page-news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 0 62%, rgba(255,196,0,0.08) 62% 100%),
    repeating-linear-gradient(-45deg, transparent 0 16px, rgba(0,255,136,0.05) 16px 18px);
  pointer-events: none;
}

.page-news-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 44px;
  background: var(--light);
  clip-path: polygon(0 100%, 100% 100%, 100% 0, 0 48%);
  pointer-events: none;
}

.page-news-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.page-news-hero-copy .section-kicker {
  color: var(--green);
}

.page-news-hero-copy h1 {
  font-family: var(--font-headline);
  font-size: clamp(2.1rem, 6vw, 4.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0.75rem 0 1.25rem;
}

.page-news-hero-lead {
  font-size: 1.05rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.82);
  max-width: 36rem;
  margin: 0;
}

.page-news-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin: 1.5rem 0 2.25rem;
}

.page-news-hero-actions .btn-ghost {
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
}

.page-news-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news-hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-family: var(--font-caption);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.62);
  border-left: 2px solid var(--yellow);
  padding-left: 0.75rem;
}

.page-news-hero-stats li span {
  font-family: var(--font-numbers);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--white);
  line-height: 1;
}

/* ---------- 精选文章卡片 ---------- */
.page-news-featured {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.page-news-featured::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 46px 46px 0;
  border-color: transparent var(--yellow) transparent transparent;
}

.page-news-featured-label {
  display: inline-block;
  background: var(--yellow);
  color: var(--blue-900);
  font-family: var(--font-caption);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.3rem 0.9rem;
  border-radius: 0 0 0 4px;
  position: absolute;
  z-index: 2;
}

.page-news-featured-media img {
  width: 100%;
  height: auto;
  display: block;
}

.page-news-featured-body {
  padding: 1.5rem;
}

/* ---------- 文章元信息 ---------- */
.page-news-article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.875rem;
}

.page-news-vol {
  font-family: var(--font-numbers);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--yellow);
  letter-spacing: 0.06em;
}

.page-news-cat {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-caption);
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(255,255,255,0.14);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  color: var(--white);
}

.page-news-dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  flex: none;
}

.page-news-time {
  font-family: var(--font-numbers);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  margin-left: auto;
}

/* ---------- 精选卡片标题与摘要 ---------- */
.page-news-featured-title {
  font-family: var(--font-headline);
  font-size: 1.5rem;
  line-height: 1.3;
  margin: 0 0 0.75rem;
  color: var(--white);
}

.page-news-featured-excerpt {
  color: rgba(255,255,255,0.78);
  font-size: 0.9375rem;
  line-height: 1.65;
  margin: 0 0 1.25rem;
}

/* ---------- 摘要展开详情 ---------- */
.page-news-details {
  border-top: 1px dashed rgba(255,255,255,0.22);
  margin: 0 0 1.25rem;
  padding-top: 0.875rem;
}

.page-news-details summary {
  cursor: pointer;
  font-family: var(--font-caption);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--green);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

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

.page-news-details ol {
  margin: 0.625rem 0 0;
  padding-left: 1.125rem;
  color: rgba(255,255,255,0.82);
  font-size: 0.875rem;
  line-height: 1.65;
}

.page-news-details li + li {
  margin-top: 0.375rem;
}

/* ---------- 分类索引 ---------- */
.page-news-cats {
  background: var(--light);
  padding: 3rem 1.25rem;
  position: relative;
}

.page-news-cats::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--yellow) 0 32%, var(--green) 32% 100%);
}

.page-news-cats-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.page-news-cats-head .section-kicker {
  color: var(--blue-500);
}

.page-news-cats-head h2 {
  font-family: var(--font-headline);
  font-size: 2rem;
  line-height: 1.2;
  margin: 0.375rem 0 0.625rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.page-news-cats-head h2::before {
  content: "";
  width: 12px;
  height: 12px;
  background: var(--yellow);
  transform: skewX(-20deg);
  flex: none;
}

.page-news-cats-head p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.page-news-cats-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.page-news-cat-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--white);
  border: 1px solid #d8dee6;
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-dark);
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.page-news-cat-tag .page-news-dot {
  background: var(--yellow);
}

.page-news-cat-tag:hover {
  background: var(--blue-900);
  border-color: var(--blue-900);
  color: var(--white);
  transform: translateY(-2px);
}

.page-news-cat-tag:hover .page-news-dot {
  background: var(--green);
}

.page-news-count {
  font-family: var(--font-numbers);
  font-size: 0.75rem;
  background: var(--blue-500);
  color: var(--white);
  border-radius: 999px;
  padding: 0 0.475rem;
  line-height: 1.5;
}

.page-news-cat-tag:hover .page-news-count {
  background: var(--yellow);
  color: var(--blue-900);
}

/* ---------- 文章列表 ---------- */
.page-news-archive {
  background: var(--light);
  padding: 0 1.25rem 4rem;
}

.page-news-archive-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.page-news-archive-head {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0 0 2rem;
}

.page-news-archive-head .section-kicker {
  color: var(--data-blue);
}

.page-news-archive-head h2 {
  font-family: var(--font-headline);
  font-size: 2.25rem;
  margin: 0.25rem 0 0;
}

.page-news-archive-head > p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.9375rem;
}

.page-news-articles {
  display: grid;
  gap: 1.5rem;
}

/* ---------- 文章卡片 ---------- */
.page-news-card {
  background: var(--white);
  border: 1px solid #e2e7ed;
  border-radius: 6px;
  padding: 1.5rem;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-news-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0 26px 26px;
  border-color: transparent transparent var(--yellow) transparent;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.page-news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(10, 20, 40, 0.08);
  border-color: var(--blue-500);
}

.page-news-card:hover::before {
  opacity: 1;
}

.page-news-card-grid {
  display: grid;
  gap: 1rem;
}

.page-news-card-copy h3 {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  line-height: 1.35;
  margin: 0 0 0.5rem;
}

.page-news-card-copy > p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0 0 0.875rem;
}

.page-news-card-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}

/* 卡片在浅色背景上的元信息与详情微调 */
.page-news-card .page-news-vol {
  color: var(--blue-500);
}

.page-news-card .page-news-cat {
  background: rgba(10, 20, 40, 0.06);
  color: var(--blue-700);
}

.page-news-card .page-news-time {
  color: var(--text-muted);
}

.page-news-card .page-news-details {
  border-top-color: #e2e7ed;
}

.page-news-card .page-news-details summary {
  color: var(--data-blue);
}

.page-news-card .page-news-details ol {
  color: var(--text-dark);
}

/* ---------- 加载更多 ---------- */
.page-news-more {
  margin-top: 0.5rem;
}

.page-news-more > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  text-align: center;
  padding: 1rem 1.5rem;
  background: var(--blue-900);
  color: var(--white);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  transition: background 0.2s ease;
}

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

.page-news-more > summary:hover {
  background: var(--blue-700);
}

.page-news-more > summary::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(100deg, transparent 30%, rgba(0,255,136,0.28) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.45s ease;
}

.page-news-more[open] > summary::after {
  transform: translateX(100%);
}

.page-news-more-open-label {
  display: none;
}

.page-news-more[open] .page-news-more-close-label {
  display: none;
}

.page-news-more[open] .page-news-more-open-label {
  display: inline;
}

.page-news-more-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
  font-family: var(--font-numbers);
}

.page-news-more[open] .page-news-more-arrow {
  transform: rotate(180deg);
}

.page-news-more-list {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

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

.page-news-card-compact .page-news-card-copy h3 {
  font-size: 1.15rem;
}

/* ---------- 归档底部 ---------- */
.page-news-archive-footer {
  margin-top: 2.5rem;
  background: var(--blue-900);
  color: var(--white);
  padding: 2rem 1.5rem;
  border-radius: 6px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  position: relative;
  overflow: hidden;
}

.page-news-archive-footer::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 6px;
  height: 100%;
  background: linear-gradient(180deg, var(--yellow), var(--green));
}

.page-news-archive-footer p {
  margin: 0;
  color: rgba(255,255,255,0.88);
  max-width: 30rem;
}

.page-news-archive-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-news-archive-footer .btn-ghost {
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
}

/* ---------- 桌面端布局 ---------- */
@media (min-width: 768px) {
  .page-news-hero {
    padding: 4rem 2rem 5.5rem;
  }

  .page-news-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 3.5rem;
  }

  .page-news-hero-copy h1 {
    font-size: 4rem;
  }

  .page-news-cats {
    padding: 4rem 2rem;
  }

  .page-news-cats-inner {
    display: grid;
    grid-template-columns: 0.9fr 1.6fr;
    gap: 2rem;
    align-items: start;
  }

  .page-news-cats-list {
    margin-top: 0;
  }

  .page-news-archive {
    padding: 0 2rem 5rem;
  }

  .page-news-archive-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .page-news-archive-head > p {
    margin-bottom: 0.25rem;
  }

  .page-news-card-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 1.5rem;
  }

  .page-news-card-featured-img:nth-child(even) .page-news-card-media {
    order: -1;
  }

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