/* ===== 行业观察页专属样式 .page-news ===== */
.page-news {
  --color-primary-dark: #0A1F3F;
  --color-primary-gold: #D4A843;
  --color-accent-red: #E63946;
  --color-accent-green: #2A9D8F;
  --color-bg-warm: #F5EFE0;
  --color-bg-ink: #1D1D1D;
  --color-text-light: #FFFFFF;
  --color-text-dark: #0A1F3F;
  --color-data-highlight: #F4A261;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --font-body: 'Merriweather', Georgia, 'Times New Roman', serif;
  --font-scale-h1: 2.5rem;
  --font-scale-h2: 1.8rem;
  --font-scale-h3: 1.35rem;
  --max-width: 1200px;
  --border-radius: 6px;
  --shadow-card: 0 2px 12px rgba(10, 31, 63, 0.08);
  --transition-speed: 0.3s;

  display: block;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  background: var(--color-bg-warm);
  color: var(--color-text-dark);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
}

/* ---- 顶部区域 ---- */
.page-news__hero {
  margin-bottom: 2rem;
  position: relative;
}

.page-news__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  opacity: 0.7;
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}

.page-news__breadcrumb a {
  color: var(--color-primary-dark);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-speed);
}

.page-news__breadcrumb a:hover,
.page-news__breadcrumb a:focus {
  border-bottom-color: var(--color-primary-gold);
}

.page-news__breadcrumb-sep {
  color: var(--color-primary-gold);
  font-weight: 700;
}

.page-news__breadcrumb-current {
  color: var(--color-primary-dark);
  font-weight: 400;
}

.page-news__heading {
  font-family: var(--font-heading);
  font-size: var(--font-scale-h1);
  font-weight: 800;
  color: var(--color-primary-dark);
  margin: 0 0 0.25rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-news__tagline {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  opacity: 0.8;
  margin: 0 0 1rem;
  font-style: italic;
}

.page-news__rule {
  border: none;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-gold) 0%, var(--color-primary-dark) 80%);
  margin: 1rem 0 0;
  width: 5rem;
}

/* ---- 两栏布局 ---- */
.page-news__layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* ---- 左侧索引 ---- */
.page-news__index {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
}

.page-news__card {
  background: var(--color-text-light);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  border-left: 4px solid var(--color-primary-gold);
  overflow: hidden;
}

.page-news__card:hover,
.page-news__card:focus-within {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(10, 31, 63, 0.12);
}

.page-news__card-link {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.25rem 1.25rem 1rem;
  text-decoration: none;
  color: inherit;
}

.page-news__card-link:focus {
  outline: 2px solid var(--color-primary-gold);
  outline-offset: 2px;
}

.page-news__card-num {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary-gold);
  line-height: 1;
  min-width: 2.4rem;
  flex-shrink: 0;
}

.page-news__card-body {
  flex: 1;
  min-width: 0;
}

.page-news__card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin: 0 0 0.1rem;
  line-height: 1.2;
}

.page-news__card-sub {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary-gold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.35rem;
}

.page-news__card-desc {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-dark);
  opacity: 0.8;
  margin: 0;
  line-height: 1.5;
}

.page-news__card-img {
  width: 100%;
  max-width: 120px;
  height: auto;
  border-radius: 4px;
  flex-shrink: 0;
  object-fit: cover;
  align-self: center;
}

.page-news__index-cta {
  margin-top: 0.75rem;
  padding: 1.25rem;
  background: rgba(212, 168, 67, 0.08);
  border: 1px dashed var(--color-primary-gold);
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
}

.page-news__index-cta-text {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin: 0 0 0.25rem;
}

/* ---- 右侧详细 ---- */
.page-news__detail {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.page-news__section {
  background: var(--color-text-light);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-card);
  padding: 1.5rem 1.25rem;
  border-top: 4px solid var(--color-primary-dark);
  position: relative;
}

.page-news__section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60px;
  height: 4px;
  background: var(--color-primary-gold);
  border-radius: 0 var(--border-radius) 0 0;
}

.page-news__section-header {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.page-news__section-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary-gold);
  line-height: 1;
  flex-shrink: 0;
}

.page-news__section-title {
  font-family: var(--font-heading);
  font-size: var(--font-scale-h2);
  font-weight: 700;
  color: var(--color-primary-dark);
  margin: 0;
  line-height: 1.2;
}

.page-news__section-divider {
  color: var(--color-primary-gold);
  font-weight: 300;
  margin: 0 0.15rem;
}

.page-news__chart {
  width: 100%;
  margin-bottom: 1.25rem;
  background: var(--color-bg-ink);
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(212, 168, 67, 0.25);
}

.page-news__chart-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  background: var(--color-bg-ink);
}

.page-news__analysis {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-dark);
  line-height: 1.7;
}

.page-news__analysis p {
  margin: 0 0 0.75rem;
}

.page-news__analysis p:last-child {
  margin-bottom: 0;
}

.page-news__analysis-more {
  font-size: 0.85rem;
  opacity: 0.85;
  border-top: 1px solid rgba(10, 31, 63, 0.08);
  padding-top: 0.75rem;
  margin-top: 0.75rem;
}

.page-news__inline-link {
  color: var(--color-primary-dark);
  text-decoration: none;
  border-bottom: 2px solid var(--color-primary-gold);
  font-weight: 600;
  transition: background var(--transition-speed);
}

.page-news__inline-link:hover,
.page-news__inline-link:focus {
  background: rgba(212, 168, 67, 0.15);
}

.page-news__detail-footer {
  margin-top: 0.5rem;
  padding: 0.75rem 0;
  border-top: 1px solid rgba(10, 31, 63, 0.06);
}

.page-news__detail-footer-text {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-text-dark);
  opacity: 0.55;
  margin: 0;
  text-align: center;
  font-style: italic;
}

/* ---- 桌面端两栏 ---- */
@media (min-width: 768px) {
  .page-news {
    padding: 2rem 1.5rem 4rem;
  }

  .page-news__hero {
    margin-bottom: 2.5rem;
  }

  .page-news__heading {
    font-size: 3.2rem;
  }

  .page-news__layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
  }

  .page-news__index {
    width: 280px;
    flex-shrink: 0;
    position: sticky;
    top: 1.5rem;
    max-height: calc(100vh - 3rem);
    overflow-y: auto;
    gap: 1rem;
  }

  .page-news__card-num {
    font-size: 3.2rem;
    min-width: 2.8rem;
  }

  .page-news__card-body {
    min-width: 0;
  }

  .page-news__card-img {
    max-width: 100px;
  }

  .page-news__detail {
    flex: 1;
    min-width: 0;
    gap: 2rem;
  }

  .page-news__section {
    padding: 2rem 1.75rem;
  }

  .page-news__section-title {
    font-size: 2rem;
  }

  .page-news__section-num {
    font-size: 2.4rem;
  }

  .page-news__chart-img {
    max-height: 400px;
    object-fit: contain;
  }

  .page-news__analysis {
    font-size: 1rem;
  }
}

@media (min-width: 1024px) {
  .page-news {
    padding: 2.5rem 2rem 5rem;
  }

  .page-news__heading {
    font-size: 4rem;
  }

  .page-news__index {
    width: 320px;
    gap: 1.25rem;
  }

  .page-news__card-num {
    font-size: 3.6rem;
  }

  .page-news__card-link {
    padding: 1.5rem 1.5rem 1.5rem 1.25rem;
  }

  .page-news__card-img {
    max-width: 110px;
  }

  .page-news__section {
    padding: 2.5rem 2.25rem;
  }

  .page-news__section-title {
    font-size: 2.2rem;
  }

  .page-news__section-num {
    font-size: 2.8rem;
  }
}

/* ---- 打印优化 ---- */
@media print {
  .page-news {
    background: #fff;
    color: #000;
    padding: 0;
    max-width: 100%;
  }

  .page-news__card,
  .page-news__section {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  .page-news__index-cta {
    display: none;
  }

  .page-news__chart-img {
    max-width: 80%;
    margin: 0 auto;
  }
}