/* ===== 页面专属：.page-news（行业观察） ===== */
.page-news {
  --news-gap: 2rem;
  --news-card-radius: 12px;
  --news-transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --news-sidebar-width: 300px;
  color: var(--color-text-primary);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 1rem var(--gutter) 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}
.page-news .breadcrumb a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: opacity var(--news-transition);
}
.page-news .breadcrumb a:hover {
  opacity: 0.8;
}
.page-news .breadcrumb span[aria-current="page"] {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-bold);
}

/* ---------- Hero 区域 ---------- */
.page-news .news-hero {
  position: relative;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 2.5rem var(--gutter) 2rem;
  min-height: 260px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-radius: 16px;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}
.page-news .news-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-news .news-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-news .news-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(30,30,47,0.92) 30%, rgba(30,30,47,0.60) 70%, rgba(30,30,47,0.30) 100%);
}
.page-news .news-hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.page-news .news-hero__title {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-bold);
  font-size: clamp(2.4rem, 8vw, 3.8rem);
  line-height: 1.1;
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-news .news-hero__sub {
  font-family: var(--font-sans);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* ---------- 布局容器 ---------- */
.page-news .news-layout {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--gutter) 3rem;
  display: flex;
  flex-direction: column;
  gap: var(--news-gap);
}

/* ---------- 左栏：文章流 ---------- */
.page-news .news-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* ---------- 文章分区 ---------- */
.page-news .news-section {
  scroll-margin-top: 80px;
}
.page-news .news-section__title {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-bold);
  font-size: clamp(1.6rem, 4vw, 2rem);
  margin: 0 0 0.3rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-text-primary);
}
.page-news .news-section__marker {
  display: inline-block;
  width: 6px;
  height: 1.8em;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  border-radius: 3px;
  flex-shrink: 0;
}
.page-news .news-section__desc {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin: 0 0 1.2rem 0;
  padding-left: calc(6px + 0.6rem);
}

/* ---------- 文章卡片 ---------- */
.page-news .news-card {
  background: var(--color-card-bg);
  border-radius: var(--news-card-radius);
  border: 1px solid var(--color-border);
  transition: background var(--news-transition), box-shadow var(--news-transition), border-color var(--news-transition);
  cursor: default;
}
.page-news .news-card:hover {
  background: #32324a;
  box-shadow: 0 8px 28px rgba(0,0,0,0.35);
  border-color: rgba(255,255,255,0.15);
}
.page-news .news-card__inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
}
.page-news .news-card--with-img .news-card__inner {
  padding: 0;
}
.page-news .news-card--with-img .news-card__img-wrap {
  border-radius: var(--news-card-radius) var(--news-card-radius) 0 0;
  overflow: hidden;
  max-height: 200px;
}
.page-news .news-card--with-img .news-card__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--news-transition);
}
.page-news .news-card--with-img:hover .news-card__img-wrap img {
  transform: scale(1.03);
}
.page-news .news-card--with-img .news-card__body {
  padding: 0 1.5rem 1.25rem;
}
.page-news .news-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-news .news-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.page-news .news-card__tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  background: rgba(255,109,1,0.12);
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: background var(--news-transition);
}
.page-news .news-card:hover .news-card__tag {
  background: rgba(255,109,1,0.22);
}
.page-news .news-card__title {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-bold);
  font-size: 1.25rem;
  margin: 0;
  color: var(--color-text-primary);
  line-height: 1.3;
}
.page-news .news-card__summary {
  font-family: var(--font-sans);
  font-size: 0.925rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: -webkit-line-clamp var(--news-transition);
}
.page-news .news-card:hover .news-card__summary {
  -webkit-line-clamp: 8;
}
.page-news .news-card__link {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: color var(--news-transition);
  margin-top: 0.2rem;
}
.page-news .news-card__link::after {
  content: "→";
  transition: transform var(--news-transition);
}
.page-news .news-card__link:hover {
  color: var(--color-secondary);
}
.page-news .news-card__link:hover::after {
  transform: translateX(4px);
}

/* ---------- 无限滚动占位 ---------- */
.page-news .news-loadmore {
  height: 2px;
  background: transparent;
  pointer-events: none;
}

/* ---------- 右栏：侧边栏 ---------- */
.page-news .news-sidebar {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-top: 0.5rem;
}

/* 标签筛选 */
.page-news .tag-filter {
  background: var(--color-card-bg);
  border-radius: var(--news-card-radius);
  border: 1px solid var(--color-border);
  padding: 1.25rem 1.5rem;
}
.page-news .tag-filter__title {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-bold);
  font-size: 1rem;
  margin: 0 0 0.8rem;
  color: var(--color-text-primary);
}
.page-news .tag-filter__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-news .tag-filter__btn {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: var(--font-weight-bold);
  padding: 0.35rem 0.9rem;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.10);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--news-transition), color var(--news-transition), border-color var(--news-transition);
}
.page-news .tag-filter__btn:hover {
  background: rgba(255,255,255,0.06);
  color: var(--color-text-primary);
  border-color: rgba(255,255,255,0.20);
}
.page-news .tag-filter__btn.is-active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* 趋势摘要 */
.page-news .trending-summary {
  background: var(--color-card-bg);
  border-radius: var(--news-card-radius);
  border: 1px solid var(--color-border);
  padding: 1.25rem 1.5rem;
}
.page-news .trending-summary__img-wrap {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 1rem;
}
.page-news .trending-summary__img-wrap img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.page-news .trending-summary__title {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-bold);
  font-size: 1rem;
  margin: 0 0 0.6rem;
  color: var(--color-text-primary);
}
.page-news .trending-summary__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-news .trending-summary__list li {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  padding-left: 1rem;
  position: relative;
  line-height: 1.4;
}
.page-news .trending-summary__list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: var(--font-weight-bold);
}

/* 侧边栏相关链接 */
.page-news .sidebar-links {
  background: var(--color-card-bg);
  border-radius: var(--news-card-radius);
  border: 1px solid var(--color-border);
  padding: 1.25rem 1.5rem;
}
.page-news .sidebar-links__title {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-bold);
  font-size: 1rem;
  margin: 0 0 0.6rem;
  color: var(--color-text-primary);
}
.page-news .sidebar-links__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-news .sidebar-links__item {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: color var(--news-transition);
}
.page-news .sidebar-links__item::before {
  content: "→";
  color: var(--color-secondary);
  font-weight: var(--font-weight-bold);
}
.page-news .sidebar-links__item:hover {
  color: var(--color-secondary);
}

/* ---------- 信任声明 ---------- */
.page-news .trust-statement {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 1.5rem var(--gutter) 2.5rem;
  text-align: center;
}
.page-news .trust-statement p {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* ========== 响应式：桌面端 ========== */
@media (min-width: 820px) {
  .page-news .news-layout {
    flex-direction: row;
    align-items: flex-start;
  }
  .page-news .news-main {
    flex: 1;
    min-width: 0;
  }
  .page-news .news-sidebar {
    width: var(--news-sidebar-width);
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-height) + 1.5rem);
  }
  .page-news .news-hero {
    padding: 3.5rem var(--gutter) 2.5rem;
    min-height: 320px;
    margin-top: 0.5rem;
    margin-bottom: 2rem;
  }
  .page-news .news-card__inner {
    padding: 1.5rem 2rem;
  }
  .page-news .news-card--with-img .news-card__body {
    padding: 0 2rem 1.5rem;
  }
  .page-news .news-card--with-img .news-card__img-wrap {
    max-height: 240px;
  }
  .page-news .news-section__desc {
    margin-bottom: 1.5rem;
  }
}

/* ========== 大桌面端微调 ========== */
@media (min-width: 1200px) {
  .page-news .news-hero {
    padding: 4rem var(--gutter) 3rem;
    min-height: 380px;
  }
  .page-news .news-sidebar {
    width: 320px;
  }
}

/* ========== 减少动效 ========== */
@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition: none !important;
    animation: none !important;
  }
  .page-news .news-card--with-img:hover .news-card__img-wrap img {
    transform: none;
  }
  .page-news .news-card__link:hover::after {
    transform: none;
  }
}