/* ===== 页面专属：资讯中心 (.page-news) ===== */
.page-news {
  --news-hero-bg: var(--color-primary, #0A1F44);
  --news-hero-text: var(--color-text-light, #FFFFFF);
  --news-card-bg: var(--color-card-bg, #F0F0F0);
  --news-card-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --news-card-hover-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
  --news-divider-color: rgba(212, 175, 55, 0.25);
  --news-glow-gold: 0 0 18px rgba(212, 175, 55, 0.30);
  --news-section-gap: 2.5rem;
  --news-grid-gap: 1.5rem;
  display: block;
  width: 100%;
  background: var(--color-dark-alt, #1A1A1A);
}

/* 容器复用全局 .container 语义，但在此加固 */
.page-news .container {
  max-width: var(--content-max, 1200px);
  margin: 0 auto;
  padding: 0 var(--gap, 1.5rem);
  box-sizing: border-box;
}

/* ========== 宽幅标题区 ========== */
.page-news .news-hero {
  position: relative;
  background: var(--news-hero-bg);
  padding: 2.5rem 0 3rem;
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(45deg, transparent, transparent 40px, rgba(212, 175, 55, 0.04) 40px, rgba(212, 175, 55, 0.04) 41px);
  pointer-events: none;
}

.page-news .hero-grid-line {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent 5%, var(--color-accent, #D4AF37) 30%, var(--color-functional, #00FF88) 70%, transparent 95%);
  opacity: 0.5;
}

.page-news .breadcrumb {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-body, 'Source Han Sans SC', sans-serif);
  font-size: 0.875rem;
}

.page-news .breadcrumb-item {
  color: var(--color-text-muted, #B0B0B0);
  text-decoration: none;
  transition: color var(--transition, 0.25s ease);
}

.page-news .breadcrumb-item:hover,
.page-news .breadcrumb-item:focus-visible {
  color: var(--color-accent, #D4AF37);
  outline: 2px solid var(--color-accent, #D4AF37);
  outline-offset: 2px;
}

.page-news .breadcrumb-current {
  color: var(--color-functional, #00FF88);
  font-weight: 600;
}

.page-news .breadcrumb-item + .breadcrumb-item::before {
  content: "／";
  color: var(--color-text-muted, #B0B0B0);
  margin-right: 0.5rem;
}

.page-news .news-hero-title {
  position: relative;
  margin: 0 0 0.5rem;
  font-family: var(--font-heading, 'Exo 2', sans-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent, #D4AF37);
  text-shadow: var(--news-glow-gold);
  letter-spacing: 0.04em;
}

.page-news .news-hero-desc {
  position: relative;
  margin: 0;
  font-family: var(--font-body, 'Source Han Sans SC', sans-serif);
  font-size: 1rem;
  color: var(--color-text-muted, #B0B0B0);
  letter-spacing: 0.02em;
}

/* ========== 通用区块 ========== */
.page-news .section {
  padding: var(--news-section-gap) 0;
  background: var(--color-dark-alt, #1A1A1A);
}

.page-news .section:nth-child(even) {
  background: var(--color-primary, #0A1F44);
}

.page-news .section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.page-news .label-number {
  font-family: var(--font-heading, 'Exo 2', sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-functional, #00FF88);
  opacity: 0.7;
}

.page-news .label-text {
  font-family: var(--font-body, 'Source Han Sans SC', sans-serif);
  font-size: 0.875rem;
  color: var(--color-text-muted, #B0B0B0);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-news .section-heading {
  margin: 0 0 0.75rem;
  font-family: var(--font-heading, 'Exo 2', sans-serif);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-accent, #D4AF37);
  text-shadow: var(--news-glow-gold);
  letter-spacing: 0.02em;
}

.page-news .section-intro {
  margin-bottom: 1.5rem;
  font-family: var(--font-body, 'Source Han Sans SC', sans-serif);
  font-size: 0.95rem;
  color: var(--color-text-muted, #B0B0B0);
  max-width: 640px;
  line-height: 1.6;
}

.page-news .section-divider {
  margin: 0 auto;
  max-width: var(--content-max, 1200px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--news-divider-color), transparent);
}

/* ========== 品牌动态 ========== */
.page-news .brand-figure {
  margin: 0 0 2rem;
  border-radius: var(--radius, 6px);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  position: relative;
}

.page-news .brand-figure::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border: 1px solid rgba(212, 175, 55, 0.15);
  border-radius: var(--radius, 6px);
  pointer-events: none;
}

.page-news .brand-hero-img {
  width: 100%;
  height: auto;
  display: block;
  max-width: 100%;
}

.page-news .article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-grid-gap);
}

.page-news .article-card {
  background: var(--news-card-bg);
  border-radius: var(--radius, 6px);
  box-shadow: var(--news-card-shadow);
  transition: box-shadow var(--transition, 0.25s ease), transform var(--transition, 0.25s ease);
  overflow: hidden;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.page-news .article-card:hover,
.page-news .article-card:focus-within {
  box-shadow: var(--news-card-hover-shadow);
  transform: translateY(-3px);
}

.page-news .article-card:focus-visible {
  outline: 2px solid var(--color-accent, #D4AF37);
  outline-offset: 2px;
}

.page-news details {
  display: block;
}

.page-news details summary {
  list-style: none;
  cursor: pointer;
}

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

.page-news .card-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--news-card-bg);
  transition: background var(--transition, 0.25s ease);
  user-select: none;
}

.page-news .article-card:hover .card-title-row,
.page-news .article-card:focus-within .card-title-row {
  background: rgba(212, 175, 55, 0.06);
}

.page-news .card-index {
  font-family: var(--font-heading, 'Exo 2', sans-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent, #D4AF37);
  opacity: 0.6;
  min-width: 1.8rem;
}

.page-news .card-title {
  margin: 0;
  font-family: var(--font-heading, 'Exo 2', sans-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-dark, #1A1A1A);
  flex: 1;
  line-height: 1.4;
}

.page-news .expand-icon {
  width: 18px;
  height: 18px;
  position: relative;
  flex-shrink: 0;
  transition: transform var(--transition, 0.25s ease);
}

.page-news .expand-icon::before,
.page-news .expand-icon::after {
  content: "";
  position: absolute;
  background: var(--color-accent, #D4AF37);
  border-radius: 1px;
  transition: transform var(--transition, 0.25s ease);
}

.page-news .expand-icon::before {
  width: 12px; height: 2px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

.page-news .expand-icon::after {
  width: 2px; height: 12px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

.page-news details[open] .expand-icon {
  transform: rotate(45deg);
}

.page-news details[open] .expand-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-news .card-body {
  padding: 0 1.25rem 1.25rem;
  font-family: var(--font-body, 'Source Han Sans SC', sans-serif);
  font-size: 0.9rem;
  color: var(--color-text-dark, #1A1A1A);
  line-height: 1.7;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.page-news .card-body p {
  margin: 0.75rem 0 0;
}

/* ========== 行业观察 ========== */
.page-news .insight-layout {
  display: flex;
  flex-direction: column;
  gap: var(--news-grid-gap);
}

.page-news .insight-articles {
  display: flex;
  flex-direction: column;
  gap: var(--news-grid-gap);
}

.page-news .insight-figure {
  margin: 0;
  border-radius: var(--radius, 6px);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  position: relative;
}

.page-news .insight-figure::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border: 1px solid rgba(0, 255, 136, 0.12);
  border-radius: var(--radius, 6px);
  pointer-events: none;
}

.page-news .insight-chart {
  width: 100%;
  height: auto;
  display: block;
  max-width: 100%;
}

/* ========== 资源更新 ========== */
.page-news .update-layout {
  display: flex;
  flex-direction: column;
  gap: var(--news-grid-gap);
}

.page-news .update-figure {
  margin: 0;
  border-radius: var(--radius, 6px);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  position: relative;
}

.page-news .update-figure::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border: 1px solid rgba(212, 175, 55, 0.12);
  border-radius: var(--radius, 6px);
  pointer-events: none;
}

.page-news .update-icon {
  width: 100%;
  height: auto;
  display: block;
  max-width: 100%;
}

.page-news .update-articles {
  display: flex;
  flex-direction: column;
  gap: var(--news-grid-gap);
}

.page-news .update-bottom-figure {
  margin: 2rem 0 0;
  border-radius: var(--radius, 6px);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  position: relative;
}

.page-news .update-bottom-figure::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border: 1px solid rgba(0, 255, 136, 0.10);
  border-radius: var(--radius, 6px);
  pointer-events: none;
}

.page-news .update-sample {
  width: 100%;
  height: auto;
  display: block;
  max-width: 100%;
}

.page-news .update-caption {
  padding: 0.75rem 1rem;
  font-family: var(--font-body, 'Source Han Sans SC', sans-serif);
  font-size: 0.8rem;
  color: var(--color-text-muted, #B0B0B0);
  background: rgba(10, 31, 68, 0.6);
  text-align: center;
  letter-spacing: 0.04em;
}

/* ========== 桌面端适配 ========== */
@media (min-width: 768px) {
  .page-news .news-hero {
    padding: 3rem 0 4rem;
  }

  .page-news .news-hero-title {
    font-size: 3.25rem;
  }

  .page-news .news-hero-desc {
    font-size: 1.1rem;
  }

  .page-news .section {
    padding: 3.5rem 0;
  }

  .page-news .section-heading {
    font-size: 2.25rem;
  }

  .page-news .section-intro {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  /* 品牌动态：两列左右交替 */
  .page-news .brand-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .page-news .brand-grid .article-card:nth-child(odd) {
    transform: translateY(0);
  }

  .page-news .brand-grid .article-card:nth-child(even) {
    transform: translateY(1.25rem);
  }

  .page-news .brand-grid .article-card:nth-child(odd):hover,
  .page-news .brand-grid .article-card:nth-child(odd):focus-within {
    transform: translateY(-3px);
  }

  .page-news .brand-grid .article-card:nth-child(even):hover,
  .page-news .brand-grid .article-card:nth-child(even):focus-within {
    transform: translateY(calc(1.25rem - 3px));
  }

  /* 行业观察：左右并排 */
  .page-news .insight-layout {
    flex-direction: row;
    align-items: flex-start;
  }

  .page-news .insight-articles {
    flex: 1;
  }

  .page-news .insight-figure {
    flex: 0 0 380px;
    margin-left: 2rem;
    position: sticky;
    top: 2rem;
  }

  /* 资源更新：左右并排 */
  .page-news .update-layout {
    flex-direction: row;
    align-items: flex-start;
  }

  .page-news .update-figure {
    flex: 0 0 280px;
    margin-right: 2rem;
    position: sticky;
    top: 2rem;
  }

  .page-news .update-articles {
    flex: 1;
  }

  .page-news .update-bottom-figure {
    margin-top: 2.5rem;
  }

  .page-news .card-title {
    font-size: 1.05rem;
  }

  .page-news .card-body {
    font-size: 0.925rem;
  }
}

@media (min-width: 1024px) {
  .page-news .news-hero-title {
    font-size: 3.75rem;
  }

  .page-news .section-heading {
    font-size: 2.5rem;
  }

  .page-news .insight-figure {
    flex-basis: 440px;
  }

  .page-news .update-figure {
    flex-basis: 320px;
  }
}

/* ========== 窄屏溢出防护 ========== */
.page-news img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news * {
  box-sizing: border-box;
}

/* ========== 减少动效 ========== */
@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    transform: none !important;
  }
}