/* ==============================================
   新闻中心 — 页面专属样式
   作用域：.page-news
   移动端优先 + 桌面媒体查询
   ============================================== */
.page-news {
  --n-red: #E63946;
  --n-green: #2A9D8F;
  --n-gray: #5B5B5B;
  --n-dark: #1A1A1A;
  --n-light: #F4F4F4;
  --n-border: #D3D3D3;
  --n-white: #FFFFFF;
  --n-font-headline: Impact, 'Arial Black', sans-serif;
  --n-font-body: 'Noto Serif SC', 'Times New Roman', serif;
  --n-font-mono: monospace;
  --n-shadow-card: 0 2px 8px rgba(0,0,0,0.08);
  --n-shadow-hover: 0 4px 16px rgba(0,0,0,0.14);
  --n-radius: 4px;
  --n-space-sm: 0.5rem;
  --n-space-md: 1rem;
  --n-space-lg: 2rem;
  --n-space-xl: 3rem;
  --n-space-2xl: 4rem;
  --n-max-width: 1200px;

  display: block;
  background: var(--n-gray);
  color: var(--n-light);
  font-family: var(--n-font-body);
  line-height: 1.6;
  padding: var(--n-space-lg) 0 var(--n-space-xl);
}

/* 容器 */
.page-news__inner {
  max-width: var(--n-max-width);
  margin: 0 auto;
  padding: 0 var(--n-space-md);
}

/* 面包屑 */
.page-news__breadcrumb {
  margin-bottom: var(--n-space-lg);
  font-size: 0.85rem;
  color: var(--n-border);
}
.page-news__breadcrumb a {
  color: var(--n-green);
  text-decoration: none;
  transition: opacity 0.2s;
}
.page-news__breadcrumb a:hover {
  opacity: 0.75;
}
.breadcrumb__sep {
  margin: 0 0.4rem;
  color: var(--n-border);
}

/* 首屏标题区 */
.page-news__hero {
  text-align: center;
  margin-bottom: var(--n-space-2xl);
  position: relative;
}
.page-news__hero-title {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--n-white);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 var(--n-space-sm);
  line-height: 1.1;
}
.page-news__hero-desc {
  font-size: 1.05rem;
  color: var(--n-border);
  max-width: 680px;
  margin: 0 auto var(--n-space-md);
  font-family: var(--n-font-body);
}
.page-news__hero-stripe {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--n-red), var(--n-green));
  margin: 0 auto var(--n-space-md);
  border-radius: 2px;
}
.page-news__hero-trust {
  font-size: 0.8rem;
  color: var(--n-border);
  opacity: 0.8;
  font-family: var(--n-font-mono);
}

/* 分类筛选 */
.page-news__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: var(--n-space-xl);
}
.page-news__filter-btn {
  background: transparent;
  border: 1px solid var(--n-border);
  color: var(--n-border);
  padding: 0.4rem 1.2rem;
  font-size: 0.85rem;
  font-family: var(--n-font-body);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.page-news__filter-btn:hover,
.page-news__filter-btn.is-active {
  background: var(--n-red);
  border-color: var(--n-red);
  color: var(--n-white);
}

/* 通用区块标题 */
.page-news__section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--n-white);
  margin: 0 0 var(--n-space-lg);
  padding-bottom: var(--n-space-sm);
  border-bottom: 2px solid var(--n-red);
  display: inline-block;
  letter-spacing: 0.02em;
}
.page-news__section {
  margin-bottom: var(--n-space-2xl);
}

/* 最新动态列表 */
.page-news__update-list {
  display: flex;
  flex-direction: column;
  gap: var(--n-space-md);
  margin-bottom: var(--n-space-lg);
}
.page-news__update-item {
  display: flex;
  gap: var(--n-space-md);
  align-items: flex-start;
  background: var(--n-dark);
  border: 1px solid var(--n-border);
  border-left: 4px solid var(--n-green);
  padding: var(--n-space-md);
  border-radius: var(--n-radius);
  transition: transform 0.2s, box-shadow 0.2s;
}
.page-news__update-item:hover {
  transform: translateX(4px);
  box-shadow: var(--n-shadow-hover);
}
.page-news__update-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--n-gray);
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-news__update-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-news__update-content {
  flex: 1;
  min-width: 0;
}
.page-news__update-time {
  font-size: 0.75rem;
  color: var(--n-green);
  font-family: var(--n-font-mono);
  display: block;
  margin-bottom: 0.15rem;
}
.page-news__update-heading {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--n-white);
  margin: 0 0 0.25rem;
  font-family: var(--n-font-headline);
  letter-spacing: 0.01em;
}
.page-news__update-text {
  font-size: 0.9rem;
  color: var(--n-border);
  margin: 0 0 0.35rem;
  line-height: 1.5;
}
.page-news__update-tag {
  display: inline-block;
  background: var(--n-green);
  color: var(--n-white);
  font-size: 0.7rem;
  padding: 0.15rem 0.6rem;
  border-radius: 10px;
  font-family: var(--n-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* 卡片网格（数据洞察 & 行业观察） */
.page-news__card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--n-space-lg);
  margin-bottom: var(--n-space-lg);
}
.page-news__article-card {
  background: var(--n-dark);
  border: 1px solid var(--n-border);
  border-radius: var(--n-radius);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}
.page-news__article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--n-shadow-hover);
}
.page-news__article-card.card--data {
  border-top: 4px solid var(--n-red);
}
.page-news__article-img-wrap {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--n-gray);
}
.page-news__article-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}
.page-news__article-card:hover .page-news__article-img-wrap img {
  transform: scale(1.03);
}
.page-news__article-body {
  padding: var(--n-space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.page-news__article-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--n-white);
  margin: 0 0 0.4rem;
  font-family: var(--n-font-headline);
  line-height: 1.3;
  letter-spacing: 0.01em;
}
.page-news__article-excerpt {
  font-size: 0.88rem;
  color: var(--n-border);
  margin: 0 0 var(--n-space-md);
  flex: 1;
  line-height: 1.55;
}
.page-news__article-meta {
  display: flex;
  align-items: center;
  gap: var(--n-space-sm);
  font-size: 0.75rem;
  color: var(--n-border);
  font-family: var(--n-font-mono);
  border-top: 1px solid var(--n-border);
  padding-top: var(--n-space-sm);
  margin-top: auto;
}
.page-news__article-tag {
  background: var(--n-red);
  color: var(--n-white);
  padding: 0.1rem 0.6rem;
  border-radius: 10px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.page-news__article-date {
  color: var(--n-border);
  opacity: 0.7;
}

/* 区块底部链接 */
.page-news__section-link-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--n-space-md);
  justify-content: center;
  margin-top: var(--n-space-lg);
}
.page-news__section-link-wrap .btn {
  min-width: 160px;
  text-align: center;
}

/* 氛围图区 */
.page-news__atmos {
  position: relative;
  width: 100%;
  height: 260px;
  overflow: hidden;
  border-radius: var(--n-radius);
  margin-top: var(--n-space-2xl);
}
.page-news__atmos img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-news__atmos-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(90,90,90,0.75) 0%, rgba(230,57,70,0.35) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-news__atmos-text {
  color: var(--n-white);
  font-size: 1.4rem;
  font-family: var(--n-font-headline);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
  text-align: center;
  padding: 0 var(--n-space-md);
}

/* ===== 桌面端媒体查询 ===== */
@media (min-width: 768px) {
  .page-news {
    padding: var(--n-space-xl) 0 var(--n-space-2xl);
  }
  .page-news__inner {
    padding: 0 var(--n-space-lg);
  }
  .page-news__hero-title {
    font-size: 4rem;
  }
  .page-news__hero-desc {
    font-size: 1.15rem;
  }
  .page-news__section-title {
    font-size: 2.5rem;
  }

  /* 更新列表横向两列 */
  .page-news__update-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--n-space-lg);
  }
  .page-news__update-item {
    padding: var(--n-space-lg);
  }
  .page-news__update-icon {
    width: 80px;
    height: 80px;
  }
  .page-news__update-heading {
    font-size: 1.2rem;
  }

  /* 卡片网格三列 */
  .page-news__card-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--n-space-xl);
  }
  .page-news__card-grid--wide {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-news__article-img-wrap {
    height: 180px;
  }
  .page-news__article-title {
    font-size: 1.1rem;
  }

  /* 氛围图更高 */
  .page-news__atmos {
    height: 360px;
  }
  .page-news__atmos-text {
    font-size: 2rem;
  }
}

/* 大桌面端微调 */
@media (min-width: 1024px) {
  .page-news__hero-title {
    font-size: 4.5rem;
  }
  .page-news__article-img-wrap {
    height: 200px;
  }
  .page-news__article-title {
    font-size: 1.2rem;
  }
  .page-news__atmos {
    height: 400px;
  }
}

/* ===== 动效：滚动显现（渐进增强） ===== */
@media (prefers-reduced-motion: no-preference) {
  .page-news [data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .page-news [data-reveal][data-revealed] {
    opacity: 1;
    transform: translateY(0);
  }
  .page-news [data-reveal-delay="100"] { transition-delay: 0.1s; }
  .page-news [data-reveal-delay="150"] { transition-delay: 0.15s; }
  .page-news [data-reveal-delay="200"] { transition-delay: 0.2s; }
  .page-news [data-reveal-delay="250"] { transition-delay: 0.25s; }
  .page-news [data-reveal-delay="300"] { transition-delay: 0.3s; }
  .page-news [data-reveal-delay="350"] { transition-delay: 0.35s; }
  .page-news [data-reveal-delay="400"] { transition-delay: 0.4s; }
  .page-news [data-reveal-delay="450"] { transition-delay: 0.45s; }
}

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