.page-news {
  --news-gold-glow: rgba(212, 160, 23, 0.15);
  --news-red-accent: #8B0000;
  --news-card-min-h: 260px;
  --news-section-gap: 4rem;
  display: block;
  width: 100%;
  max-width: 100%;
  background-color: var(--bg-dark, #0A0A0A);
  color: var(--text-primary, #FFFFFF);
  font-family: var(--font-body, Inter, Arial, sans-serif);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== 面包屑 ===== */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  font-size: 0.8rem;
  color: var(--text-secondary, #F5E6C8);
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}
.page-news .breadcrumb a {
  color: var(--gold-primary, #D4A017);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-news .breadcrumb a:hover {
  color: var(--gold-bright, #FFD700);
}
.page-news .breadcrumb__sep {
  color: var(--gold-primary, #D4A017);
  font-size: 0.6rem;
  opacity: 0.6;
}

/* ===== 首屏英雄区 ===== */
.page-news__hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  padding: 3rem 1.25rem;
  overflow: hidden;
  margin-bottom: var(--news-section-gap);
}
.page-news__hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.2;
  pointer-events: none;
}
.page-news__hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.page-news__hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}
.page-news__hero-title {
  font-family: var(--font-heading, 'Playfair Display', Georgia, serif);
  font-size: 2.8rem;
  font-weight: bold;
  color: var(--gold-primary, #D4A017);
  margin: 0 0 0.5rem;
  line-height: 1.15;
  letter-spacing: 0.02em;
  text-shadow: 0 0 60px var(--news-gold-glow);
}
.page-news__hero-desc {
  font-family: var(--font-body, Inter, Arial, sans-serif);
  font-size: 1.05rem;
  color: var(--text-secondary, #F5E6C8);
  margin: 0;
  letter-spacing: 0.08em;
  word-break: break-word;
}

/* ===== 通用区块 ===== */
.page-news__section {
  padding: 0 1.25rem;
  margin-bottom: var(--news-section-gap);
}
.page-news__section-inner {
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}
.page-news__section-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.page-news__section-sub {
  font-family: var(--font-body, Inter, Arial, sans-serif);
  font-size: 0.95rem;
  color: var(--text-secondary, #F5E6C8);
  margin: 0;
  line-height: 1.5;
}

/* ===== 版本更新记录 ===== */
.page-news__updates {
  position: relative;
}
.page-news__updates .page-news__section-header {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
}
.page-news__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-news__filter-btn {
  font-family: var(--font-body, Inter, Arial, sans-serif);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 1.1rem;
  border: 1.5px solid var(--gold-primary, #D4A017);
  background: transparent;
  color: var(--text-secondary, #F5E6C8);
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  border-radius: var(--radius, 4px);
  letter-spacing: 0.04em;
}
.page-news__filter-btn:hover {
  border-color: var(--gold-bright, #FFD700);
  color: var(--gold-bright, #FFD700);
  box-shadow: 0 0 20px var(--news-gold-glow);
}
.page-news__filter-btn--active,
.page-news__filter-btn[data-active] {
  background: var(--gold-primary, #D4A017);
  color: #0A0A0A;
  border-color: var(--gold-primary, #D4A017);
}
.page-news__updates-visual {
  margin-bottom: 2rem;
  max-width: 100%;
  overflow: hidden;
  border-radius: var(--radius, 4px);
  border: 1px solid rgba(212, 160, 23, 0.2);
}
.page-news__timeline-img {
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* ===== 版本卡片 ===== */
.page-news__card-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.page-news__version-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.5rem;
  background: var(--glass, rgba(255,255,255,0.05));
  border: 1px solid rgba(212, 160, 23, 0.15);
  border-radius: var(--radius, 4px);
  min-height: var(--news-card-min-h);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.page-news__version-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold-primary, #D4A017);
  box-shadow: 0 8px 32px var(--news-gold-glow);
}
.page-news__version-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.7rem;
  background: rgba(212, 160, 23, 0.15);
  color: var(--gold-primary, #D4A017);
  border-radius: 2px;
  align-self: flex-start;
  text-transform: uppercase;
}
.page-news__version-title {
  font-family: var(--font-heading, 'Playfair Display', Georgia, serif);
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--text-primary, #FFFFFF);
  margin: 0;
  line-height: 1.3;
}
.page-news__version-num {
  color: var(--gold-primary, #D4A017);
  font-family: var(--font-accent, Impact, sans-serif);
  font-weight: heavy;
  letter-spacing: 0.04em;
}
.page-news__version-desc {
  font-size: 0.88rem;
  color: var(--text-secondary, #F5E6C8);
  margin: 0;
  line-height: 1.6;
  flex: 1;
}
.page-news__version-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gold-primary, #D4A017);
  letter-spacing: 0.06em;
  border-top: 1px solid rgba(212, 160, 23, 0.2);
  padding-top: 0.6rem;
  margin-top: auto;
}

/* ===== 内容索引 ===== */
.page-news__index {
  position: relative;
}
.page-news__index-visual {
  margin-bottom: 2rem;
  text-align: center;
}
.page-news__index-icon {
  width: 120px;
  height: auto;
  border-radius: var(--radius, 4px);
  opacity: 0.9;
  border: 1px solid rgba(212, 160, 23, 0.15);
}
.page-news__index-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.page-news__index-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.5rem;
  background: var(--glass, rgba(255,255,255,0.05));
  border: 1px solid rgba(212, 160, 23, 0.12);
  border-radius: var(--radius, 4px);
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.page-news__index-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold-bright, #FFD700);
  background: rgba(212, 160, 23, 0.06);
}
.page-news__index-num {
  font-family: var(--font-accent, Impact, sans-serif);
  font-size: 1.6rem;
  font-weight: heavy;
  color: var(--gold-primary, #D4A017);
  line-height: 1;
  margin-bottom: 0.2rem;
}
.page-news__index-title {
  font-family: var(--font-heading, 'Playfair Display', Georgia, serif);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--text-primary, #FFFFFF);
  margin: 0;
}
.page-news__index-desc {
  font-size: 0.82rem;
  color: var(--text-secondary, #F5E6C8);
  margin: 0;
  line-height: 1.5;
}

/* ===== 行业观察 ===== */
.page-news__insights {
  position: relative;
}
.page-news__insights-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.page-news__insights-visual {
  max-width: 100%;
  overflow: hidden;
  border-radius: var(--radius, 4px);
  border: 1px solid rgba(212, 160, 23, 0.15);
}
.page-news__insights-img {
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
  object-position: center;
  display: block;
}
.page-news__insights-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.page-news__insight-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--glass, rgba(255,255,255,0.05));
  border: 1px solid rgba(212, 160, 23, 0.1);
  border-radius: var(--radius, 4px);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.page-news__insight-item:hover {
  border-color: var(--gold-primary, #D4A017);
  box-shadow: 0 4px 24px var(--news-gold-glow);
}
.page-news__insight-num {
  flex-shrink: 0;
  font-family: var(--font-accent, Impact, sans-serif);
  font-size: 1.8rem;
  font-weight: heavy;
  color: var(--gold-primary, #D4A017);
  line-height: 1;
  min-width: 1.8rem;
}
.page-news__insight-body {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.page-news__insight-title {
  font-family: var(--font-heading, 'Playfair Display', Georgia, serif);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--text-primary, #FFFFFF);
  margin: 0;
}
.page-news__insight-text {
  font-size: 0.85rem;
  color: var(--text-secondary, #F5E6C8);
  margin: 0;
  line-height: 1.6;
}
.page-news__insight-source {
  font-size: 0.72rem;
  color: rgba(212, 160, 23, 0.6);
  letter-spacing: 0.04em;
  margin-top: 0.2rem;
}

/* ===== 相关链接 ===== */
.page-news__related {
  padding: 0 1.25rem 3rem;
}
.page-news__related-inner {
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(212, 160, 23, 0.15);
}
.page-news__related-label {
  font-family: var(--font-heading, 'Playfair Display', Georgia, serif);
  font-size: 1rem;
  color: var(--text-secondary, #F5E6C8);
  letter-spacing: 0.1em;
}
.page-news__related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}
.page-news__related-links .btn-gold,
.page-news__related-links .btn-red {
  font-family: var(--font-body, Inter, Arial, sans-serif);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 1.6rem;
  border-radius: var(--radius, 4px);
  text-decoration: none;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.3s ease, background 0.3s ease;
  letter-spacing: 0.04em;
  display: inline-block;
}
.page-news__related-links .btn-gold {
  background: var(--gold-primary, #D4A017);
  color: #0A0A0A;
  border: 1.5px solid var(--gold-primary, #D4A017);
}
.page-news__related-links .btn-gold:hover {
  background: var(--gold-bright, #FFD700);
  border-color: var(--gold-bright, #FFD700);
  transform: scale(1.04);
  box-shadow: 0 0 24px var(--news-gold-glow);
}
.page-news__related-links .btn-red {
  background: var(--red-deep, #8B0000);
  color: var(--text-primary, #FFFFFF);
  border: 1.5px solid var(--red-deep, #8B0000);
}
.page-news__related-links .btn-red:hover {
  background: var(--red-bright, #DC143C);
  border-color: var(--red-bright, #DC143C);
  transform: scale(1.04);
  box-shadow: 0 0 20px rgba(220, 20, 60, 0.3);
}

/* ===== section-title 共享类适配 ===== */
.page-news .section-title {
  font-family: var(--font-heading, 'Playfair Display', Georgia, serif);
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--gold-primary, #D4A017);
  margin: 0;
  line-height: 1.2;
  position: relative;
  padding-bottom: 0.5rem;
}
.page-news .section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--gold-primary, #D4A017);
  margin-top: 0.4rem;
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-news__hero-title {
    font-size: 3.4rem;
  }
  .page-news__hero-desc {
    font-size: 1.15rem;
  }
  .page-news__index-icon {
    width: 160px;
  }
  .page-news__card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }
  .page-news__card-grid .page-news__version-card {
    min-height: 280px;
  }
  .page-news__index-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .page-news__insights-layout {
    flex-direction: row;
    align-items: flex-start;
  }
  .page-news__insights-visual {
    flex: 0 0 40%;
    max-width: 40%;
  }
  .page-news__insights-list {
    flex: 1;
  }
  .page-news__insight-num {
    font-size: 2rem;
  }
}

@media (min-width: 1024px) {
  .page-news {
    --news-section-gap: 5rem;
  }
  .page-news .breadcrumb {
    padding: 1.2rem 2rem;
    font-size: 0.85rem;
  }
  .page-news__hero {
    min-height: 400px;
    padding: 4rem 2rem;
  }
  .page-news__hero-title {
    font-size: 4.2rem;
  }
  .page-news__hero-desc {
    font-size: 1.25rem;
  }
  .page-news__section {
    padding: 0 2rem;
  }
  .page-news__section-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 2.5rem;
  }
  .page-news__section-sub {
    font-size: 1rem;
  }
  .page-news .section-title {
    font-size: 2.2rem;
  }
  .page-news__card-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
  }
  .page-news__card-grid .page-news__version-card {
    min-height: 300px;
    padding: 1.8rem;
  }
  .page-news__version-title {
    font-size: 1.35rem;
  }
  .page-news__index-grid {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 1.25rem;
  }
  .page-news__index-icon {
    width: 200px;
  }
  .page-news__insights-img {
    max-height: 400px;
  }
  .page-news__insight-item {
    padding: 1.5rem;
  }
  .page-news__insight-num {
    font-size: 2.2rem;
    min-width: 2.2rem;
  }
  .page-news__insight-title {
    font-size: 1.2rem;
  }
  .page-news__insight-text {
    font-size: 0.9rem;
  }
  .page-news__updates-visual {
    max-width: 75%;
    margin-left: auto;
    margin-right: auto;
  }
  .page-news__related {
    padding: 0 2rem 4rem;
  }
  .page-news__related-inner {
    flex-direction: row;
    justify-content: space-between;
    padding-top: 3rem;
  }
  .page-news__related-label {
    font-size: 1.1rem;
  }
  .page-news__related-links {
    gap: 1rem;
  }
  .page-news__related-links .btn-gold,
  .page-news__related-links .btn-red {
    font-size: 0.9rem;
    padding: 0.6rem 1.8rem;
  }
}

@media (min-width: 1280px) {
  .page-news__hero-title {
    font-size: 5rem;
  }
  .page-news__hero {
    min-height: 460px;
  }
}

/* ===== 筛选状态隐藏逻辑 (渐进增强：JS 未运行时全部可见) ===== */
.page-news__version-card[data-category] {
  display: flex;
}

/* ===== 滚动显现占位 ===== */
.page-news [data-scroll-reveal] {
  opacity: 0.99;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.page-news [data-scroll-reveal][data-visible] {
  opacity: 1;
}

/* ===== 网格工具类覆盖 ===== */
.page-news .grid-12 {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  width: 100%;
}
@media (min-width: 640px) {
  .page-news .grid-12 {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.25rem;
  }
  .page-news .grid-12__item {
    grid-column: span 12;
  }
  .page-news .grid-12__item--span-3 {
    grid-column: span 6;
  }
  .page-news .grid-12__item--span-4 {
    grid-column: span 6;
  }
}
@media (min-width: 1024px) {
  .page-news .grid-12__item--span-3 {
    grid-column: span 3;
  }
  .page-news .grid-12__item--span-4 {
    grid-column: span 4;
  }
}

/* ===== 图片通用约束 ===== */
.page-news img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== glass-card 共享类适配 ===== */
.page-news .glass-card {
  background: var(--glass, rgba(255,255,255,0.05));
  backdrop-filter: blur(2px);
  border: 1px solid rgba(212, 160, 23, 0.12);
}
.page-news .glass-card--highlight {
  border-color: var(--gold-primary, #D4A017);
}

/* ===== 移动端安全 ===== */
.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}
.page-news a {
  transition: color 0.25s ease;
}