/* ============================================
   行业观察页 .page-news 专属样式
   移动端优先
   ============================================ */
.page-news {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}

/* ---------- Hero 区域 ---------- */
.page-news .news-hero {
  position: relative;
  padding: 40px 0 40px;
  background:
    linear-gradient(rgba(57, 255, 20, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.05) 1px, transparent 1px),
    var(--color-bg);
  background-size: 42px 42px, 42px 42px, auto;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(57, 255, 20, 0.08), transparent 65%);
  pointer-events: none;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-orange) 60%, transparent);
  opacity: 0.8;
}

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

.page-news .news-hero .breadcrumbs {
  margin-bottom: 32px;
}

.page-news .news-hero .breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
}

.page-news .news-hero .breadcrumbs li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--color-text-secondary);
}

.page-news .news-hero .breadcrumbs .breadcrumbs__link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.8125rem;
  transition: color var(--transition-fast);
}

.page-news .news-hero .breadcrumbs .breadcrumbs__link:hover {
  color: var(--color-accent);
}

.page-news .news-hero .breadcrumbs .breadcrumbs__item[aria-current="page"] {
  color: var(--color-text);
  font-size: 0.8125rem;
}

.page-news .news-hero__content {
  max-width: 860px;
}

.page-news .news-hero .section__eyebrow {
  font-family: var(--font-digital);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.page-news .news-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4.4vw, 2.5rem);
  line-height: 1.18;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.page-news .news-hero__desc {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 720px;
}

/* ---------- 布局栅格 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: 40px;
  padding-bottom: 64px;
}

.page-news .news-main {
  min-width: 0;
}

.page-news .news-articles .section__header {
  margin-bottom: 28px;
}

.page-news .news-articles .section__header h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  margin: 0;
}

.page-news .news-articles .section__desc {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  margin-top: 8px;
}

/* ---------- 时间线 ---------- */
.page-news .news-timeline {
  position: relative;
  padding-left: 24px;
}

.page-news .news-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  border-left: 2px dashed #2A3F6E;
}

/* ---------- 文章卡片 ---------- */
.page-news .news-card {
  position: relative;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-fast);
}

.page-news .news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(57, 255, 20, 0.35);
}

/* 时间线圆点 */
.page-news .news-card::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 28px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.12);
  z-index: 1;
}

.page-news .news-card:nth-child(even)::before {
  background: var(--color-accent-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.15);
}

/* 图片 */
.page-news .news-card__media {
  display: block;
  position: relative;
  background: var(--color-bg);
  overflow: hidden;
  border-radius: calc(var(--radius-md) - 1px) calc(var(--radius-md) - 1px) 0 0;
}

.page-news .news-card__media img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

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

/* 卡片内容 */
.page-news .news-card__content {
  padding: 20px;
}

.page-news .news-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.page-news .news-card__date {
  font-family: var(--font-digital);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.page-news .news-card h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  line-height: 1.4;
  margin: 0 0 8px;
}

.page-news .news-card h3 a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-news .news-card h3 a:hover {
  color: var(--color-accent);
}

.page-news .news-card__content p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0 0 16px;
}

.page-news .news-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-news .news-card__read {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

/* ---------- 更多按钮 ---------- */
.page-news .news-more {
  margin-top: 8px;
  padding-left: 24px;
  text-align: center;
}

.page-news .news-more .btn {
  min-width: 220px;
}

/* ---------- 侧边栏 ---------- */
.page-news .news-sidebar {
  min-width: 0;
}

.page-news .news-sidebar__inner {
  display: grid;
  gap: 24px;
}

.page-news .news-sidebar section {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.page-news .news-sidebar h2 {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

/* ---------- 分类标签 ---------- */
.page-news .news-tags__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .news-tags .tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(57, 255, 20, 0.35);
  background: rgba(57, 255, 20, 0.06);
  color: var(--color-text);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.8125rem;
  text-decoration: none;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.page-news .news-tags .tag:hover {
  background: rgba(57, 255, 20, 0.14);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.page-news .news-tags .tag--active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
  font-weight: 700;
}

/* ---------- 热门专题 ---------- */
.page-news .news-feature__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(10, 31, 68, 0.45);
  margin-bottom: 12px;
}

.page-news .news-feature__item:last-child {
  margin-bottom: 0;
}

.page-news .news-feature__item[open] {
  border-color: rgba(57, 255, 20, 0.25);
}

.page-news .news-feature__item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

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

.page-news .news-feature__item summary::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  background: var(--color-accent-orange);
  border-radius: 2px;
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
}

.page-news .news-feature__item[open] summary::before {
  transform: rotate(90deg);
}

.page-news .news-feature__item summary:hover {
  color: var(--color-accent);
}

.page-news .news-feature__body {
  padding: 0 16px 16px;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.page-news .news-feature__body p {
  margin: 0 0 10px;
}

.page-news .news-feature__link {
  color: var(--color-accent);
  font-size: 0.8125rem;
  text-decoration: none;
  border-bottom: 1px dashed rgba(57, 255, 20, 0.4);
  transition: border-color var(--transition-fast);
}

.page-news .news-feature__link:hover {
  border-color: var(--color-accent);
}

/* ---------- 更新简报 ---------- */
.page-news .news-updates__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-news .news-updates__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.page-news .news-updates__item:last-child {
  border-bottom: 0;
}

.page-news .news-updates__dot {
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  background: var(--color-accent);
  border-radius: 50%;
  margin-top: 8px;
  box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.12);
}

/* ---------- 响应式：平板 ---------- */
@media (min-width: 768px) {
  .page-news .news-card {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    align-items: stretch;
  }

  .page-news .news-card__media {
    min-height: 220px;
    border-radius: calc(var(--radius-md) - 1px) 0 0 calc(var(--radius-md) - 1px);
  }

  .page-news .news-card__media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    aspect-ratio: auto;
  }

  .page-news .news-card__content {
    padding: 24px;
  }

  .page-news .news-card h3 {
    font-size: 1.25rem;
  }

  .page-news .news-more {
    padding-left: 0;
    text-align: left;
  }
}

/* ---------- 响应式：桌面 ---------- */
@media (min-width: 1024px) {
  .page-news .news-layout {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
    padding-top: 56px;
    padding-bottom: 80px;
  }

  .page-news .news-sidebar__inner {
    position: sticky;
    top: calc(var(--header-height, 76px) + 24px);
  }

  .page-news .news-timeline {
    padding-left: 32px;
  }

  .page-news .news-timeline::before {
    left: 11px;
  }

  .page-news .news-card::before {
    left: -25px;
  }
}