/* ===== 行业观察页面专属样式 (page-news) ===== */
.page-news {
  --news-bg-card: rgba(255,255,255,0.06);
  --news-border-subtle: rgba(192,192,192,0.2);
  --news-radius-card: 12px;
  --news-radius-tag: 20px;
  --news-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: var(--spacing-lg, 2rem) var(--spacing-md, 1rem) var(--spacing-xl, 4rem);
  color: var(--color-text, #e0e0e0);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  position: relative;
  z-index: 1;
}

/* ---------- 标题区 ---------- */
.page-news .news-hero {
  position: relative;
  padding: var(--spacing-xl, 4rem) 0 var(--spacing-lg, 2rem);
  margin-bottom: var(--spacing-lg, 2rem);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 70%;
  height: 200%;
  background: linear-gradient(135deg, rgba(43,94,167,0.15) 0%, rgba(255,107,53,0.08) 100%);
  transform: skewX(-12deg);
  pointer-events: none;
  z-index: 0;
}

.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs, 0.25rem);
  font-size: 0.875rem;
  color: var(--color-silver, #c0c0c0);
  margin-bottom: var(--spacing-md, 1rem);
  position: relative;
  z-index: 1;
}

.page-news .breadcrumb a {
  color: var(--color-accent, #ff6b35);
  text-decoration: none;
  transition: color var(--news-transition);
}

.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  color: var(--color-accent-hover, #ff8f5e);
  outline: 2px solid var(--color-accent, #ff6b35);
  outline-offset: 2px;
}

.page-news .breadcrumb-sep {
  margin: 0 var(--spacing-xs, 0.25rem);
  opacity: 0.5;
}

.page-news .breadcrumb [aria-current="page"] {
  color: var(--color-heading, #ffffff);
  font-weight: 500;
}

.page-news .news-hero h1 {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15;
  color: var(--color-heading, #ffffff);
  margin: 0 0 var(--spacing-sm, 0.5rem);
  position: relative;
  z-index: 1;
  letter-spacing: -0.02em;
}

.page-news .hero-desc {
  font-size: 1.05rem;
  max-width: 680px;
  color: var(--color-silver, #c0c0c0);
  line-height: 1.6;
  margin: 0;
  position: relative;
  z-index: 1;
}

.page-news .hero-shape {
  display: none;
}

/* ---------- 非对称布局：侧边栏＋主内容 ---------- */
.page-news .news-layout {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg, 2rem);
  margin-bottom: var(--spacing-xl, 4rem);
}

/* ---- 侧边栏 ---- */
.page-news .news-sidebar {
  flex: 0 0 auto;
  width: 100%;
  background: var(--color-card-bg, rgba(255,255,255,0.1));
  border: 1px solid var(--news-border-subtle);
  border-radius: var(--news-radius-card);
  padding: var(--spacing-lg, 2rem) var(--spacing-md, 1rem);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.page-news .news-sidebar .section-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-heading, #ffffff);
  margin: 0 0 var(--spacing-md, 1rem);
  padding-bottom: var(--spacing-sm, 0.5rem);
  border-bottom: 2px solid var(--color-accent, #ff6b35);
  display: inline-block;
}

.page-news .tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm, 0.5rem);
  margin-bottom: var(--spacing-lg, 2rem);
}

.page-news .tag-btn {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.35rem 1rem;
  border-radius: var(--news-radius-tag);
  border: 1px solid var(--news-border-subtle);
  background: transparent;
  color: var(--color-silver, #c0c0c0);
  cursor: pointer;
  transition: background var(--news-transition), color var(--news-transition), border-color var(--news-transition), transform 0.2s;
  white-space: nowrap;
  user-select: none;
}

.page-news .tag-btn:hover,
.page-news .tag-btn:focus-visible {
  background: rgba(255,107,53,0.15);
  color: var(--color-accent, #ff6b35);
  border-color: var(--color-accent, #ff6b35);
  transform: translateY(-1px);
  outline: none;
}

.page-news .tag-btn.active {
  background: var(--color-accent, #ff6b35);
  color: #0a1628;
  border-color: var(--color-accent, #ff6b35);
  font-weight: 600;
}

.page-news .sidebar-image {
  margin-top: var(--spacing-sm, 0.5rem);
  border-radius: 8px;
  overflow: hidden;
  opacity: 0.7;
  transition: opacity var(--news-transition);
}

.page-news .sidebar-image:hover {
  opacity: 1;
}

.page-news .sidebar-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 8px;
}

/* ---- 主内容区 ---- */
.page-news .news-main {
  flex: 1;
  min-width: 0;
}

.page-news .featured-figure {
  margin: 0 0 var(--spacing-lg, 2rem);
  border-radius: var(--news-radius-card);
  overflow: hidden;
  background: var(--news-bg-card);
  border: 1px solid var(--news-border-subtle);
}

.page-news .featured-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  object-position: center 20%;
}

/* ---- 文章卡片网格 ---- */
.page-news .article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg, 2rem);
}

.page-news .article-card {
  display: flex;
  flex-direction: column;
  background: var(--news-bg-card);
  border: 1px solid var(--news-border-subtle);
  border-radius: var(--news-radius-card);
  overflow: hidden;
  transition: transform var(--news-transition), border-color var(--news-transition), box-shadow var(--news-transition);
  will-change: transform;
}

.page-news .article-card:hover,
.page-news .article-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--color-accent, #ff6b35);
  box-shadow: 0 12px 32px rgba(255,107,53,0.08);
}

.page-news .card-image {
  overflow: hidden;
  background: var(--color-card-dark, rgba(0,0,0,0.4));
  aspect-ratio: 3 / 2;
}

.page-news .card-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.page-news .article-card:hover .card-image img {
  transform: scale(1.04);
}

.page-news .card-body {
  padding: var(--spacing-md, 1rem) var(--spacing-md, 1rem) var(--spacing-lg, 2rem);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 0.5rem);
  flex: 1;
}

.page-news .card-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.3;
  color: var(--color-heading, #ffffff);
  margin: 0;
}

.page-news .article-card a {
  color: inherit;
  text-decoration: none;
}

.page-news .article-card a:focus-visible {
  outline: 2px solid var(--color-accent, #ff6b35);
  outline-offset: 4px;
  border-radius: 4px;
}

.page-news .card-summary {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text, #e0e0e0);
  margin: 0;
  flex: 1;
}

.page-news .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs, 0.25rem);
  margin-top: auto;
  padding-top: var(--spacing-sm, 0.5rem);
}

.page-news .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.2rem 0.7rem;
  border-radius: var(--news-radius-tag);
  background: rgba(255,107,53,0.12);
  color: var(--color-accent, #ff6b35);
  border: 1px solid rgba(255,107,53,0.2);
  white-space: nowrap;
}

/* ---------- 专家专栏入口 ---------- */
.page-news .expert-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg, 2rem);
  background: linear-gradient(135deg, rgba(43,94,167,0.12) 0%, rgba(255,107,53,0.08) 100%);
  border: 1px solid var(--news-border-subtle);
  border-radius: var(--news-radius-card);
  padding: var(--spacing-lg, 2rem) var(--spacing-md, 1rem);
  position: relative;
  overflow: hidden;
}

.page-news .expert-section::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 50%;
  height: 150%;
  background: radial-gradient(circle at 70% 30%, rgba(255,107,53,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.page-news .expert-content {
  position: relative;
  z-index: 1;
  flex: 1;
}

.page-news .expert-content .section-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-heading, #ffffff);
  margin: 0 0 var(--spacing-sm, 0.5rem);
}

.page-news .expert-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text, #e0e0e0);
  margin: 0 0 var(--spacing-lg, 2rem);
  max-width: 540px;
}

.page-news .expert-content .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.8rem;
  border-radius: 30px;
  background: var(--color-accent, #ff6b35);
  color: #0a1628;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background var(--news-transition), transform 0.2s, box-shadow 0.2s;
}

.page-news .expert-content .btn:hover,
.page-news .expert-content .btn:focus-visible {
  background: var(--color-accent-hover, #ff8f5e);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255,107,53,0.25);
  outline: none;
}

.page-news .expert-visual {
  position: relative;
  z-index: 1;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  border: 1px solid var(--news-border-subtle);
  background: var(--color-card-dark, rgba(0,0,0,0.4));
}

.page-news .expert-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 桌面端媒体查询 ≥768px ===== */
@media (min-width: 768px) {
  .page-news {
    padding: var(--spacing-xl, 4rem) var(--spacing-lg, 2rem);
  }

  .page-news .news-hero {
    padding: var(--spacing-xl, 4rem) 0 var(--spacing-xl, 4rem);
  }

  .page-news .news-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-xl, 4rem);
  }

  .page-news .news-sidebar {
    flex: 0 0 240px;
    max-width: 240px;
    position: sticky;
    top: 2rem;
    align-self: flex-start;
    padding: var(--spacing-lg, 2rem);
  }

  .page-news .tag-list {
    flex-direction: column;
    gap: var(--spacing-xs, 0.25rem);
  }

  .page-news .tag-btn {
    width: 100%;
    text-align: left;
    white-space: normal;
  }

  .page-news .sidebar-image {
    margin-top: var(--spacing-lg, 2rem);
  }

  .page-news .article-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-news .article-card:first-child {
    grid-column: 1 / -1;
    flex-direction: row;
  }

  .page-news .article-card:first-child .card-image {
    flex: 0 0 40%;
    aspect-ratio: auto;
    min-height: 200px;
  }

  .page-news .article-card:first-child .card-body {
    flex: 1;
    padding: var(--spacing-lg, 2rem);
  }

  .page-news .article-card:first-child .card-title {
    font-size: 1.25rem;
  }

  .page-news .expert-section {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-xl, 4rem);
    padding: var(--spacing-xl, 4rem) var(--spacing-lg, 2rem);
  }

  .page-news .expert-visual {
    flex: 0 0 380px;
    max-width: 380px;
  }

  .page-news .expert-desc {
    font-size: 1.05rem;
  }
}

/* ===== 较大桌面端 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-news .news-sidebar {
    flex: 0 0 280px;
    max-width: 280px;
  }

  .page-news .article-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl, 4rem) var(--spacing-lg, 2rem);
  }

  .page-news .article-card:first-child {
    grid-column: 1 / -1;
  }
}

/* ===== reduced-motion 兼容 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-news .article-card,
  .page-news .card-image img,
  .page-news .tag-btn,
  .page-news .expert-content .btn {
    transition: none !important;
    transform: none !important;
  }

  .page-news .article-card:hover,
  .page-news .article-card:focus-within {
    transform: none;
    border-color: var(--color-accent, #ff6b35);
  }

  .page-news .article-card:hover .card-image img {
    transform: none;
  }

  .page-news .tag-btn:hover {
    transform: none;
  }

  .page-news .expert-content .btn:hover {
    transform: none;
  }
}

/* ===== 确保图片响应式 ===== */
.page-news img {
  max-width: 100%;
  height: auto;
}

/* ===== 聚焦环统一 ===== */
.page-news :focus-visible {
  outline: 2px solid var(--color-accent, #ff6b35);
  outline-offset: 2px;
}