/* ===== 品牌动态页专属样式 .page-news ===== */
.page-news {
  position: relative;
  --news-accent: #FF6B35;
  --news-primary: #1A2A3A;
  --news-bg: #E0E0E0;
  --news-card-bg: #FFFFFF;
  --news-text: #1A1A1A;
  --news-text-secondary: #4A4A4A;
  --news-border: #C0C0C0;
  --news-tag-update: #FF6B35;
  --news-tag-insight: #1A2A3A;
  --news-timeline-line: #C0C0C0;
  --news-timeline-dot: #FF6B35;
  --news-shadow: 0 2px 12px rgba(26,42,58,0.08);
  --news-radius: 8px;
  font-family: var(--font-body, 'Inter', Roboto, sans-serif);
  color: var(--news-text);
  background-color: var(--news-bg);
  overflow-x: hidden;
}

/* ---------- 背景纹理 ---------- */
.page-news__bg-container {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}
.page-news__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- Hero 区 ---------- */
.page-news__hero {
  position: relative;
  z-index: 1;
  padding: 1.5rem 1rem 2.5rem;
  background-color: var(--news-primary);
  color: #fff;
}
.page-news .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
  color: rgba(255,255,255,0.65);
}
.page-news .breadcrumbs a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: color 0.2s;
}
.page-news .breadcrumbs a:hover {
  color: var(--news-accent);
}
.page-news .breadcrumbs a::after {
  content: "／";
  margin-left: 0.5rem;
  color: rgba(255,255,255,0.4);
}
.page-news .breadcrumbs span[aria-current] {
  color: #fff;
  font-weight: 500;
}
.page-news__hero-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-news__hero-text {
  flex: 1;
}
.page-news__title {
  font-family: var(--font-headings, 'Oswald', Impact, sans-serif);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  color: #fff;
}
.page-news__subtitle {
  font-size: 1rem;
  line-height: 1.5;
  color: rgba(255,255,255,0.8);
  max-width: 32rem;
  margin: 0;
  font-weight: 400;
}
.page-news__hero-image {
  flex-shrink: 0;
  border-radius: var(--news-radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}
.page-news__hero-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.page-news__hero-divider {
  margin-top: 2rem;
  height: 4px;
  background: linear-gradient(135deg, var(--news-accent) 0%, var(--news-accent) 40%, transparent 40%, transparent 100%);
  border: none;
  border-radius: 2px;
}

/* ---------- 通用区块头 ---------- */
.page-news__section-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.page-news__section-title {
  font-family: var(--font-headings, 'Oswald', Impact, sans-serif);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--news-primary);
  text-transform: uppercase;
}
.page-news__filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-news__filter-btn {
  font-family: var(--font-body, 'Inter', Roboto, sans-serif);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.375rem 1rem;
  border: 1.5px solid var(--news-border);
  border-radius: 100px;
  background-color: transparent;
  color: var(--news-text-secondary);
  cursor: default;
  transition: all 0.2s;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.page-news__filter-btn--active,
.page-news__filter-btn[aria-pressed="true"] {
  background-color: var(--news-accent);
  border-color: var(--news-accent);
  color: #fff;
  font-weight: 600;
}

/* ---------- 最新动态 · 时间轴 ---------- */
.page-news__timeline-section {
  position: relative;
  z-index: 1;
  padding: 2.5rem 1rem;
  background-color: var(--news-card-bg);
}
.page-news__timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
}
.page-news__timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1.25rem;
  width: 2px;
  background-color: var(--news-timeline-line);
  border-radius: 1px;
}
.page-news__timeline-item {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 1rem;
  position: relative;
}
.page-news__item-index {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-headings, 'Oswald', Impact, sans-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--news-primary);
  background-color: var(--news-card-bg);
  border: 2px solid var(--news-timeline-dot);
  border-radius: 50%;
  z-index: 2;
  position: relative;
  line-height: 1;
}
.page-news__item-card {
  flex: 1;
  min-width: 0;
  background-color: var(--news-card-bg);
  border: 1px solid var(--news-border);
  border-radius: var(--news-radius);
  padding: 1.25rem 1.25rem 1rem;
  box-shadow: var(--news-shadow);
  transition: box-shadow 0.25s;
}
.page-news__item-card:hover {
  box-shadow: 0 4px 20px rgba(26,42,58,0.12);
}
.page-news__item-tag {
  display: inline-block;
  font-family: var(--font-body, 'Inter', Roboto, sans-serif);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  color: #fff;
  background-color: var(--news-tag-update);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.page-news__item-card .page-news__item-tag {
  background-color: var(--news-tag-update);
}
.page-news__item-title {
  font-family: var(--font-headings, 'Oswald', Impact, sans-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 0.375rem;
  color: var(--news-primary);
  text-transform: uppercase;
}
.page-news__item-brief {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--news-text-secondary);
  margin: 0 0 0.75rem;
}
.page-news__item-details {
  margin-top: 0.25rem;
}
.page-news__item-summary {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--news-accent);
  cursor: pointer;
  padding: 0.25rem 0;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: color 0.2s;
  user-select: none;
}
.page-news__item-summary::-webkit-details-marker {
  display: none;
}
.page-news__item-summary::before {
  content: "+";
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1;
  color: var(--news-accent);
  transition: transform 0.25s;
}
.page-news__item-details[open] .page-news__item-summary::before {
  content: "−";
  transform: rotate(0deg);
}
.page-news__item-summary:hover {
  color: #e55a2b;
}
.page-news__item-content {
  padding-top: 0.75rem;
  border-top: 1px dashed var(--news-border);
  margin-top: 0.5rem;
}
.page-news__item-content p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--news-text);
  margin: 0 0 0.75rem;
}
.page-news__item-content p:last-child {
  margin-bottom: 0;
}

/* ---------- 行业观察 ---------- */
.page-news__insights-section {
  position: relative;
  z-index: 1;
  padding: 2.5rem 1rem;
  background-color: var(--news-bg);
}
.page-news__insights-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-news__insight-card {
  display: flex;
  flex-direction: column;
  background-color: var(--news-card-bg);
  border: 1px solid var(--news-border);
  border-radius: var(--news-radius);
  overflow: hidden;
  box-shadow: var(--news-shadow);
  transition: box-shadow 0.25s;
}
.page-news__insight-card:hover {
  box-shadow: 0 4px 24px rgba(26,42,58,0.12);
}
.page-news__insight-img-container {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: #f0f0f0;
}
.page-news__insight-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.page-news__insight-card:hover .page-news__insight-img {
  transform: scale(1.03);
}
.page-news__insight-body {
  padding: 1.25rem 1.25rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.page-news__insight-body .page-news__item-tag {
  background-color: var(--news-tag-insight);
  align-self: flex-start;
}
.page-news__insight-title {
  font-family: var(--font-headings, 'Oswald', Impact, sans-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0.5rem 0 0.375rem;
  color: var(--news-primary);
  text-transform: uppercase;
}
.page-news__insight-brief {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--news-text-secondary);
  margin: 0 0 0.75rem;
}
.page-news__insight-card--alt {
  flex-direction: column;
  position: relative;
}
.page-news__insight-card--alt .page-news__insight-body {
  padding-bottom: 3.5rem;
}
.page-news__insight-deco {
  position: absolute;
  bottom: 0.75rem;
  right: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.3;
  pointer-events: none;
}
.page-news__deco-number {
  font-family: var(--font-headings, 'Oswald', Impact, sans-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--news-primary);
  line-height: 1;
}
.page-news__deco-label {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--news-primary);
  border: 1px solid var(--news-primary);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

/* ---------- 媒体联动 ---------- */
.page-news__media-section {
  position: relative;
  z-index: 1;
  padding: 2.5rem 1rem;
  background-color: var(--news-primary);
  color: #fff;
}
.page-news__media-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}
.page-news__media-text {
  flex: 1;
}
.page-news__media-title {
  color: #fff;
  margin-bottom: 1rem;
}
.page-news__media-desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
  margin: 0 0 1rem;
  max-width: 36rem;
}
.page-news__media-desc:last-of-type {
  margin-bottom: 1.5rem;
}
.page-news__media-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.page-news__media-image {
  flex-shrink: 0;
  width: 100%;
  max-width: 360px;
  border-radius: var(--news-radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.page-news__media-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 底部CTA ---------- */
.page-news__cta-section {
  position: relative;
  z-index: 1;
  padding: 2.5rem 1rem 3rem;
  background-color: var(--news-card-bg);
  text-align: center;
}
.page-news__cta-inner {
  max-width: 36rem;
  margin: 0 auto;
}
.page-news__cta-title {
  font-family: var(--font-headings, 'Oswald', Impact, sans-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--news-primary);
  text-transform: uppercase;
}
.page-news__cta-desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--news-text-secondary);
  margin: 0 0 1.5rem;
}
.page-news__cta-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-news__hero-layout {
    flex-direction: row;
    align-items: center;
  }
  .page-news__hero-image {
    max-width: 380px;
  }
  .page-news__title {
    font-size: 3.25rem;
  }
  .page-news__section-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-news__timeline::before {
    left: 1.75rem;
  }
  .page-news__item-index {
    width: 3rem;
    height: 3rem;
    font-size: 1.125rem;
  }
  .page-news__insights-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  .page-news__media-layout {
    flex-direction: row;
    align-items: center;
  }
  .page-news__media-image {
    max-width: 280px;
  }
  .page-news__cta-section {
    padding: 3rem 1rem 3.5rem;
  }
}

@media (min-width: 1024px) {
  .page-news__hero {
    padding: 2rem 2rem 3rem;
  }
  .page-news__hero-layout {
    max-width: var(--max-width, 1280px);
    margin: 0 auto;
  }
  .page-news__title {
    font-size: 4rem;
  }
  .page-news__hero-image {
    max-width: 480px;
  }
  .page-news__timeline-section,
  .page-news__insights-section,
  .page-news__media-section,
  .page-news__cta-section {
    padding-left: 2rem;
    padding-right: 2rem;
  }
  .page-news__timeline-section > *,
  .page-news__insights-section > *,
  .page-news__media-layout,
  .page-news__cta-inner {
    max-width: var(--max-width, 1280px);
    margin-left: auto;
    margin-right: auto;
  }
  .page-news__media-image {
    max-width: 320px;
  }
  .page-news__insights-grid {
    gap: 2rem;
  }
  .page-news__item-card {
    padding: 1.5rem 1.75rem 1.25rem;
  }
}

@media (min-width: 1280px) {
  .page-news__hero-layout {
    gap: 3rem;
  }
  .page-news__title {
    font-size: 4.75rem;
  }
  .page-news__hero-image {
    max-width: 560px;
  }
  .page-news__timeline-section,
  .page-news__insights-section,
  .page-news__media-section,
  .page-news__cta-section {
    padding-left: calc((100vw - var(--max-width, 1280px)) / 2);
    padding-right: calc((100vw - var(--max-width, 1280px)) / 2);
  }
}

/* ===== 打印精简 ===== */
@media print {
  .page-news__bg-container {
    display: none;
  }
  .page-news__hero {
    background-color: #fff !important;
    color: #1A1A1A !important;
    padding: 1rem 0;
  }
  .page-news__hero .breadcrumbs,
  .page-news__hero .page-news__title,
  .page-news__hero .page-news__subtitle {
    color: #1A1A1A !important;
  }
  .page-news__hero-divider {
    background: #ccc !important;
  }
  .page-news__timeline::before {
    display: none;
  }
  .page-news__item-details[open] .page-news__item-content {
    display: block !important;
  }
  .page-news__media-section {
    background-color: #f5f5f5 !important;
    color: #1A1A1A !important;
  }
  .page-news__media-title,
  .page-news__media-desc {
    color: #1A1A1A !important;
  }
}