/* ===== 页面专属：视频集锦 ===== */
.page-news {
  --neon-glow: 0 0 12px rgba(0, 255, 136, 0.35);
  --card-radius: var(--radius-card, 8px);
  position: relative;
  background: var(--color-bg, #0A1F3F);
  color: var(--color-text, #FFFFFF);
  overflow: hidden;
  min-height: 100vh;
}

/* ---------- 页面头部 ---------- */
.page-news__hero {
  padding: 2rem var(--gutter, 1rem) 1.5rem;
  background: var(--gradient-main, linear-gradient(135deg, #0A1F3F 0%, #1A2F4F 100%));
  border-bottom: 1px solid rgba(0, 255, 136, 0.15);
}

.page-news__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-family: var(--font-body, 'Roboto Condensed', sans-serif);
  color: var(--color-text-muted, #B0C4DE);
  margin-bottom: 0.75rem;
}

.page-news__breadcrumb-link {
  color: var(--color-secondary, #00FF88);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s ease);
}

.page-news__breadcrumb-link:hover,
.page-news__breadcrumb-link:focus-visible {
  color: var(--color-accent, #FF6B35);
  outline: none;
}

.page-news__breadcrumb-sep {
  color: var(--color-text-muted, #B0C4DE);
  opacity: 0.5;
}

.page-news__breadcrumb-current {
  color: var(--color-text, #FFFFFF);
  font-weight: 700;
}

.page-news__hero-text {
  position: relative;
}

.page-news__hero-text .section-label {
  display: inline-block;
  background: var(--color-secondary, #00FF88);
  color: var(--color-primary, #0A1F3F);
  font-family: var(--font-heading, 'Impact', sans-serif);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.5rem;
  clip-path: polygon(0 0, 100% 0, 96% 100%, 0 100%);
}

.page-news__hero-title {
  font-family: var(--font-heading, 'Impact', sans-serif);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-text, #FFFFFF);
  margin: 0 0 0.35rem;
}

.page-news__hero-desc {
  font-family: var(--font-body, 'Roboto Condensed', sans-serif);
  font-size: 1rem;
  color: var(--color-text-muted, #B0C4DE);
  margin: 0;
  max-width: 32em;
}

/* ---------- 精选集锦 轮播 ---------- */
.page-news__featured {
  padding: 2rem var(--gutter, 1rem) 1.5rem;
}

.page-news__featured-title {
  margin-bottom: 1.25rem;
}

.page-news__carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--card-radius);
  background: var(--color-surface, #1A2F4F);
  box-shadow: var(--shadow-card, 0 8px 32px rgba(0,0,0,0.3));
}

.page-news__carousel-track {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-news__carousel-track::-webkit-scrollbar {
  display: none;
}

.page-news__carousel-item {
  flex: 0 0 100%;
  scroll-snap-align: start;
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #0A1F3F;
}

.page-news__carousel-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news__carousel-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 40%, rgba(10, 31, 63, 0.92) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem 1.2rem;
  pointer-events: none;
}

.page-news__carousel-overlay .card__tag {
  align-self: flex-start;
  pointer-events: auto;
  background: var(--color-accent, #FF6B35);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius, 4px);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.page-news__carousel-title {
  font-family: var(--font-heading, 'Impact', sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.5rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
  line-height: 1.2;
}

.page-news__play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  background: var(--color-secondary, #00FF88);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--neon-glow);
  transition: transform var(--transition-med, 0.35s ease), box-shadow var(--transition-med, 0.35s ease);
  pointer-events: auto;
  z-index: 2;
}

.page-news__play-btn:hover,
.page-news__play-btn:focus-visible {
  transform: translate(-50%, -50%) scale(1.12);
  box-shadow: 0 0 24px rgba(0, 255, 136, 0.6);
  outline: none;
}

.page-news__play-icon {
  font-size: 1.2rem;
  color: var(--color-primary, #0A1F3F);
  line-height: 1;
  margin-left: 0.15rem;
}

.page-news__play-btn--small {
  width: 2.4rem;
  height: 2.4rem;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity var(--transition-med, 0.35s ease), transform var(--transition-med, 0.35s ease);
}

.page-news__play-btn--small .page-news__play-icon {
  font-size: 0.9rem;
}

/* 轮播控制按钮 */
.page-news__carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: rgba(10, 31, 63, 0.7);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(0, 255, 136, 0.3);
  color: var(--color-secondary, #00FF88);
  font-size: 1.4rem;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast, 0.2s ease), border-color var(--transition-fast, 0.2s ease);
  z-index: 3;
}

.page-news__carousel-btn:hover,
.page-news__carousel-btn:focus-visible {
  background: rgba(0, 255, 136, 0.2);
  border-color: var(--color-secondary, #00FF88);
  outline: none;
}

.page-news__carousel-btn--prev {
  left: 0.75rem;
}

.page-news__carousel-btn--next {
  right: 0.75rem;
}

.page-news__carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 0 0.8rem;
  background: var(--color-surface, #1A2F4F);
}

.page-news__carousel-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--color-text-muted, #B0C4DE);
  opacity: 0.4;
  transition: opacity var(--transition-fast, 0.2s ease), background var(--transition-fast, 0.2s ease);
}

.page-news__carousel-dot.is-active {
  opacity: 1;
  background: var(--color-secondary, #00FF88);
  box-shadow: var(--neon-glow);
}

/* ---------- 分类筛选 ---------- */
.page-news__filters {
  padding: 0.5rem var(--gutter, 1rem) 1rem;
}

.page-news__filter-bar {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-news__filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.6rem;
}

.page-news__filter-label {
  font-family: var(--font-body, 'Roboto Condensed', sans-serif);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted, #B0C4DE);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  min-width: 2.6rem;
}

.page-news__filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.page-news__filter-tag {
  font-family: var(--font-body, 'Roboto Condensed', sans-serif);
  font-size: 0.78rem;
  padding: 0.25rem 0.7rem;
  border-radius: 2rem;
  border: 1px solid var(--color-text-muted, #B0C4DE);
  background: transparent;
  color: var(--color-text-muted, #B0C4DE);
  cursor: pointer;
  transition: all var(--transition-fast, 0.2s ease);
}

.page-news__filter-tag:hover,
.page-news__filter-tag:focus-visible {
  border-color: var(--color-secondary, #00FF88);
  color: var(--color-secondary, #00FF88);
  outline: none;
}

.page-news__filter-tag.is-active {
  background: var(--color-secondary, #00FF88);
  border-color: var(--color-secondary, #00FF88);
  color: var(--color-primary, #0A1F3F);
  font-weight: 700;
}

/* ---------- 视频列表 ---------- */
.page-news__list {
  padding: 0.5rem var(--gutter, 1rem) 2.5rem;
}

.page-news__list-title {
  margin-bottom: 1rem;
}

.page-news__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-news__video-card {
  background: var(--color-surface, #1A2F4F);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--shadow-card, 0 8px 32px rgba(0,0,0,0.3));
  transition: transform var(--transition-med, 0.35s ease), box-shadow var(--transition-med, 0.35s ease);
  border: 1px solid transparent;
}

.page-news__video-card:hover,
.page-news__video-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  border-color: var(--color-secondary, #00FF88);
}

.page-news__video-card:hover .page-news__play-btn--small,
.page-news__video-card:focus-within .page-news__play-btn--small {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.page-news__video-card-img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #0A1F3F;
}

.page-news__video-card-img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-med, 0.35s ease);
}

.page-news__video-card:hover .page-news__video-card-img img {
  transform: scale(1.03);
}

.page-news__video-duration {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background: rgba(10, 31, 63, 0.85);
  color: var(--color-text, #FFFFFF);
  font-family: var(--font-body, 'Roboto Condensed', sans-serif);
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius, 4px);
  border: 1px solid rgba(0, 255, 136, 0.3);
  z-index: 1;
}

.page-news__video-card-info {
  padding: 0.75rem 0.9rem 0.9rem;
}

.page-news__video-card-title {
  font-family: var(--font-heading, 'Impact', sans-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text, #FFFFFF);
  margin: 0 0 0.4rem;
  line-height: 1.25;
}

.page-news__video-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.page-news__video-card-meta .card__tag {
  background: var(--color-accent, #FF6B35);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius, 4px);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.page-news__video-date {
  font-size: 0.75rem;
  font-family: var(--font-body, 'Roboto Condensed', sans-serif);
}

/* 列表底部 */
.page-news__list-footer {
  margin-top: 1.5rem;
  text-align: center;
}

.page-news__more-link {
  display: inline-block;
  font-family: var(--font-body, 'Roboto Condensed', sans-serif);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-secondary, #00FF88);
  text-decoration: none;
  padding: 0.45rem 1.2rem;
  border: 2px solid var(--color-secondary, #00FF88);
  border-radius: 2rem;
  transition: background var(--transition-fast, 0.2s ease), color var(--transition-fast, 0.2s ease);
}

.page-news__more-link:hover,
.page-news__more-link:focus-visible {
  background: var(--color-secondary, #00FF88);
  color: var(--color-primary, #0A1F3F);
  outline: none;
}

/* ---------- 信任声明 ---------- */
.page-news__trust {
  padding: 1rem var(--gutter, 1rem);
  border-top: 1px solid rgba(0, 255, 136, 0.1);
}

.page-news__trust-text {
  font-family: var(--font-body, 'Roboto Condensed', sans-serif);
  font-size: 0.8rem;
  color: var(--color-text-muted, #B0C4DE);
  text-align: center;
  margin: 0;
  max-width: 40em;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- 背景装饰 ---------- */
.page-news__decor {
  display: none;
  position: fixed;
  right: 0;
  top: 20vh;
  width: 200px;
  height: 600px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.15;
  mix-blend-mode: screen;
}

.page-news__decor img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 滚动显现 ---------- */
.scroll-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.scroll-reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .scroll-reveal {
    opacity: 1;
    transform: none;
  }

  .page-news__play-btn,
  .page-news__video-card,
  .page-news__carousel-btn,
  .page-news__filter-tag {
    transition: none;
  }

  .page-news__video-card:hover {
    transform: none;
  }
}

/* ===== 响应式：平板与桌面 ===== */
@media (min-width: 640px) {
  .page-news__hero-title {
    font-size: 2.8rem;
  }

  .page-news__carousel-item {
    flex: 0 0 calc(100% / 1.5);
    scroll-snap-align: center;
  }

  .page-news__carousel-item:first-child {
    scroll-snap-align: start;
  }

  .page-news__carousel-item:last-child {
    scroll-snap-align: end;
  }

  .page-news__carousel-btn {
    display: flex;
  }

  .page-news__carousel-dots {
    padding: 0.6rem 0 0.8rem;
  }

  .page-news__filter-bar {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.4rem 1.5rem;
  }

  .page-news__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
  }

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

@media (min-width: 1024px) {
  .page-news__hero {
    padding: 3rem var(--gutter) 2rem;
  }

  .page-news__hero-title {
    font-size: 3.6rem;
  }

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

  .page-news__featured {
    padding: 2.5rem var(--gutter) 2rem;
  }

  .page-news__carousel-item {
    flex: 0 0 calc(100% / 2.2);
  }

  .page-news__carousel-overlay {
    padding: 2rem 1.8rem;
  }

  .page-news__carousel-title {
    font-size: 1.5rem;
  }

  .page-news__play-btn {
    width: 3.6rem;
    height: 3.6rem;
  }

  .page-news__play-btn--small {
    width: 2.6rem;
    height: 2.6rem;
  }

  .page-news__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-news__video-card-title {
    font-size: 1.1rem;
  }

  .page-news__decor {
    display: block;
  }
}

@media (min-width: 1280px) {
  .page-news__hero-title {
    font-size: 4rem;
  }

  .page-news__carousel-item {
    flex: 0 0 calc(100% / 2.8);
  }

  .page-news__grid {
    gap: 1.75rem;
  }
}