/* ===== 页面专属：news（实时动态） ===== */
/* 移动端优先，逐级增强 */

/* ---- 作用域根变量 ---- */
.page-news {
  --news-hero-height: min(56vw, 400px);
  --timeline-dot-size: 14px;
  --timeline-connector-width: 3px;
  --timeline-date-width: 100px;
  --timeline-gap: 1.5rem;
  --card-radius: 12px;
  --card-border: rgba(255, 255, 255, 0.06);
  --card-bg-start: rgba(27, 40, 56, 0.85);
  --card-bg-end: rgba(15, 28, 42, 0.92);
  --accent-glow: rgba(255, 107, 53, 0.15);
  --accent-soft: rgba(255, 107, 53, 0.08);
  --faq-card-bg: rgba(26, 59, 92, 0.35);
  --faq-card-hover: rgba(255, 107, 53, 0.12);
  display: block;
  width: 100%;
}

/* ---- 面包屑 ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.25rem 0;
  max-width: var(--content-max);
  margin: 0 auto;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}
.breadcrumb__link {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.breadcrumb__link:hover {
  color: var(--accent-light);
}
.breadcrumb__sep {
  color: var(--text-muted);
  font-size: 0.7rem;
}
.breadcrumb__current {
  color: var(--text-primary);
  font-weight: 500;
  opacity: 0.9;
}
@media (min-width: 768px) {
  .breadcrumb {
    padding: 1.25rem 2rem 0;
  }
}

/* ---- 首屏 Hero ---- */
.news-hero {
  position: relative;
  max-width: var(--content-max);
  margin: 0.5rem auto 0;
  padding: 0 1.25rem;
}
.news-hero__frame {
  position: relative;
  width: 100%;
  height: var(--news-hero-height);
  border-radius: var(--card-radius);
  overflow: hidden;
  background: var(--bg-dark);
  box-shadow: var(--shadow-md);
}
.news-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.news-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13, 27, 42, 0.75) 20%, rgba(13, 27, 42, 0.25) 70%, transparent 100%);
  mix-blend-mode: multiply;
}
.news-hero__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem 1.25rem;
  background: linear-gradient(transparent, rgba(13, 27, 42, 0.85));
}
.news-hero__title {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  margin: 0 0 0.25rem;
  text-transform: uppercase;
}
.news-hero__sub {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  max-width: 480px;
  line-height: 1.5;
}
@media (min-width: 768px) {
  .news-hero {
    padding: 0 2rem;
    margin-top: 0.75rem;
  }
  .news-hero__content {
    padding: 2.5rem 2.5rem;
  }
  .news-hero__title {
    font-size: 4rem;
  }
  .news-hero__sub {
    font-size: 1.05rem;
  }
}
@media (min-width: 1024px) {
  .news-hero__title {
    font-size: 5rem;
  }
}

/* ---- 通用区块标题与描述 ---- */
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.15rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.section-title__badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  border: 1px solid var(--border-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.section-title__badge--alt {
  color: var(--primary-light);
  border-color: rgba(38, 84, 124, 0.5);
  background: rgba(26, 59, 92, 0.3);
}
.section-desc {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0.25rem 0 1.5rem;
  line-height: 1.6;
}
@media (min-width: 768px) {
  .section-title {
    font-size: 2.2rem;
  }
  .section-desc {
    font-size: 1rem;
    margin-bottom: 2rem;
  }
}

/* ---- 区块通用 ---- */
.news-section {
  padding: 2rem 0;
  position: relative;
}
.news-section--updates {
  background: linear-gradient(180deg, rgba(13, 27, 42, 0.5) 0%, transparent 100%);
}
.news-section--insights {
  background: transparent;
}
.news-section--faq {
  background: linear-gradient(0deg, rgba(13, 27, 42, 0.6) 0%, transparent 100%);
}
.content-container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 1.25rem;
  position: relative;
}
@media (min-width: 768px) {
  .news-section {
    padding: 3rem 0;
  }
  .content-container {
    padding: 0 2rem;
  }
}

/* ---- 时间线布局（核心） ---- */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
}
.timeline-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  padding-left: 1.25rem;
}
/* 连接线（移动端在左侧） */
.timeline-item::before {
  content: '';
  position: absolute;
  left: 0.35rem;
  top: 1.6rem;
  bottom: -1.2rem;
  width: var(--timeline-connector-width);
  background: linear-gradient(180deg, var(--border-accent), rgba(255, 107, 53, 0.08) 80%);
  border-radius: 2px;
}
.timeline-item:last-child::before {
  display: none;
}
/* 圆点 */
.timeline__dot {
  position: absolute;
  left: -0.32rem;
  top: 0.3rem;
  width: var(--timeline-dot-size);
  height: var(--timeline-dot-size);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
  z-index: 2;
}
.timeline__connector {
  display: none; /* 在移动端隐藏，用 item::before 代替 */
}
/* 日期块 */
.timeline__date-block {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.timeline__week {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: 0.04em;
}
.timeline__tag {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.06);
  padding: 0.15rem 0.5rem;
  border-radius: 12px;
  border: 1px solid var(--border-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
/* 卡片 */
.timeline__card {
  background: var(--card-bg-start);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
  display: flex;
  flex-direction: column;
}
.timeline__card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 107, 53, 0.2);
}
.timeline__card-img-wrap {
  width: 100%;
  max-height: 200px;
  overflow: hidden;
  background: var(--bg-dark);
}
.timeline__card-img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
  object-position: center;
  transition: transform 0.45s ease;
}
.timeline__card:hover .timeline__card-img {
  transform: scale(1.03);
}
.timeline__card-body {
  padding: 1rem 1.1rem 1.2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.timeline__card-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.4rem;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.timeline__card-text {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0 0 0.75rem;
  flex: 1;
}
.timeline__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-light);
}
.timeline__meta-item {
  font-family: var(--font-body);
  font-size: 0.72rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.timeline__link {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
  margin-left: auto;
}
.timeline__link:hover {
  color: var(--accent-light);
  text-decoration: underline;
}
/* 桌面端时间线：左右结构 + 错位 */
@media (min-width: 768px) {
  .timeline-item {
    flex-direction: row;
    align-items: flex-start;
    padding-left: 0;
    gap: 0;
  }
  .timeline-item::before {
    display: none;
  }
  .timeline__connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 48px;
    flex-shrink: 0;
    position: relative;
    padding-top: 0.6rem;
  }
  .timeline__dot {
    position: static;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
  }
  .timeline__connector::after {
    content: '';
    width: var(--timeline-connector-width);
    flex: 1;
    min-height: 40px;
    background: linear-gradient(180deg, var(--border-accent), rgba(255, 107, 53, 0.05));
    border-radius: 2px;
    margin-top: 0.35rem;
  }
  .timeline-item:last-child .timeline__connector::after {
    display: none;
  }
  .timeline__date-block {
    width: var(--timeline-date-width);
    flex-shrink: 0;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.3rem;
    padding: 0.6rem 1.2rem 0 0;
    text-align: right;
  }
  .timeline__week {
    font-size: 1.6rem;
  }
  .timeline__card {
    flex: 1;
    flex-direction: row;
    min-width: 0;
  }
  .timeline__card-img-wrap {
    width: 200px;
    max-height: none;
    flex-shrink: 0;
  }
  .timeline__card-img {
    height: 100%;
    width: 200px;
    min-height: 160px;
    object-fit: cover;
  }
  .timeline__card-body {
    padding: 1.1rem 1.5rem 1.3rem;
  }
  .timeline__card-title {
    font-size: 1.4rem;
  }

  /* 错位排列：交替偏移 */
  .timeline-item--alt {
    margin-top: 1.2rem;
  }
  .timeline-item--alt .timeline__card {
    transform: translateY(12px);
  }
  .timeline-item--alt .timeline__card:hover {
    transform: translateY(9px);
  }
  .timeline-item:not(.timeline-item--alt) {
    margin-bottom: 0.6rem;
  }
}
@media (min-width: 1024px) {
  .timeline__date-block {
    width: 130px;
  }
  .timeline__week {
    font-size: 1.9rem;
  }
  .timeline__card-img-wrap {
    width: 240px;
  }
  .timeline__card-img {
    width: 240px;
  }
  .timeline__card-title {
    font-size: 1.55rem;
  }
  .timeline__card-text {
    font-size: 0.95rem;
  }
}

/* ---- 分区装饰 ---- */
.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  max-width: var(--content-max);
  margin: 0 auto;
}
.section-divider__line {
  flex: 1;
  max-width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}
.section-divider__icon {
  color: var(--accent);
  font-size: 0.8rem;
  opacity: 0.6;
}
@media (min-width: 768px) {
  .section-divider {
    padding: 1.5rem 2rem;
  }
  .section-divider__line {
    max-width: 200px;
  }
}

/* ---- 行业观察背景装饰 ---- */
.insights-bg-deco {
  position: absolute;
  right: -60px;
  bottom: -30px;
  width: 200px;
  height: 200px;
  opacity: 0.08;
  pointer-events: none;
  z-index: 0;
  transform: rotate(12deg);
}
.insights-bg-deco__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
@media (min-width: 768px) {
  .insights-bg-deco {
    width: 320px;
    height: 320px;
    right: -80px;
    bottom: -60px;
  }
}
@media (min-width: 1024px) {
  .insights-bg-deco {
    width: 400px;
    height: 400px;
  }
}

/* ---- 加载更多提示 ---- */
.section-footer {
  display: flex;
  justify-content: center;
  padding: 1.5rem 0 0.5rem;
}
.section-footer__hint {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  cursor: default;
  padding: 0.3rem 1.2rem;
  border: 1px dashed var(--border-light);
  border-radius: 30px;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.section-footer__hint:hover {
  border-color: var(--border-accent);
  color: var(--text-secondary);
}

/* ---- FAQ 索引网格 ---- */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 0.5rem;
}
.faq-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--faq-card-bg);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  text-decoration: none;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  position: relative;
  overflow: hidden;
}
.faq-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0.4;
  transition: opacity var(--transition-fast);
}
.faq-card:hover {
  background: var(--faq-card-hover);
  border-color: rgba(255, 107, 53, 0.25);
  transform: translateX(4px);
}
.faq-card:hover::before {
  opacity: 1;
}
.faq-card__num {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  flex-shrink: 0;
  width: 2rem;
  text-align: center;
  opacity: 0.8;
}
.faq-card__text {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  flex: 1;
  line-height: 1.4;
}
.faq-card__arrow {
  font-size: 1.1rem;
  color: var(--accent);
  flex-shrink: 0;
  opacity: 0.5;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.faq-card:hover .faq-card__arrow {
  opacity: 1;
  transform: translateX(3px);
}
.faq-card--contact {
  border-color: var(--border-accent);
  background: rgba(255, 107, 53, 0.06);
}
.faq-card--contact::before {
  background: var(--accent);
  opacity: 0.7;
}
@media (min-width: 600px) {
  .faq-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .faq-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* ---- FAQ 底部行动区 ---- */
.faq-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
  text-align: center;
}
.faq-cta__text {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}
.btn-accent {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent-gradient);
  padding: 0.65rem 1.8rem;
  border-radius: 30px;
  text-decoration: none;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.25);
  border: none;
  cursor: pointer;
}
.btn-accent:hover {
  box-shadow: 0 6px 24px rgba(255, 107, 53, 0.4);
  transform: translateY(-2px);
}

/* ---- 响应式微调 ---- */
@media (max-width: 374px) {
  .news-hero__title {
    font-size: 2rem;
  }
  .timeline__week {
    font-size: 1.1rem;
  }
  .timeline__card-title {
    font-size: 1.1rem;
  }
  .faq-card {
    padding: 0.7rem 0.85rem;
  }
  .faq-card__num {
    font-size: 1rem;
    width: 1.6rem;
  }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .timeline__card-img-wrap {
    width: 160px;
  }
  .timeline__card-img {
    width: 160px;
    height: 100%;
    min-height: 140px;
  }
  .timeline__card-body {
    padding: 0.9rem 1.1rem 1.1rem;
  }
  .timeline__card-title {
    font-size: 1.2rem;
  }
}

/* ---- 高分辨率微调 ---- */
@media (min-width: 1440px) {
  .news-hero {
    padding: 0;
  }
  .content-container {
    padding: 0;
  }
  .breadcrumb {
    padding-left: 0;
    padding-right: 0;
  }
  .news-hero__content {
    padding: 3rem 3.5rem;
  }
  .news-hero__title {
    font-size: 5.6rem;
  }
}

/* ---- 减少动效 ---- */
@media (prefers-reduced-motion: reduce) {
  .timeline__card,
  .timeline__card-img,
  .faq-card,
  .btn-accent {
    transition: none !important;
    transform: none !important;
  }
  .timeline__card:hover,
  .faq-card:hover {
    transform: none !important;
  }
  .btn-accent:hover {
    transform: none !important;
  }
  .insights-bg-deco {
    transition: none;
  }
}