.page-news {
  --hero-min-height: 420px;
  --timeline-dot-size: 18px;
  --timeline-line-width: 3px;
  --card-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--background);
  color: var(--text);
}

/* ── Hero ── */
.page-news .page-news__hero {
  position: relative;
  min-height: var(--hero-min-height);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 80px 0 48px;
}

.page-news .hero__bg-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  opacity: 0.25;
}

.page-news .hero__container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 16px;
}

.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.page-news .breadcrumb a {
  color: var(--secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  color: var(--accent);
  outline: none;
}

.page-news .breadcrumb .separator {
  color: var(--text-muted);
}

.page-news .breadcrumb [aria-current="page"] {
  color: var(--text);
  font-weight: 500;
}

.page-news .hero__text {
  margin-bottom: 32px;
}

.page-news .hero__title {
  font-family: var(--font-headings);
  font-size: clamp(2.4rem, 8vw, 4.8rem);
  font-weight: 900;
  letter-spacing: 0.03em;
  color: var(--text);
  margin: 0 0 12px;
  text-transform: uppercase;
  line-height: 1.1;
  position: relative;
  display: inline-block;
}

.page-news .hero__title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--secondary);
  margin-top: 8px;
  border-radius: 2px;
}

.page-news .hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
  margin: 0;
}

/* ── 筛选栏 ── */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.page-news .filter-btn {
  padding: 8px 20px;
  font-size: 0.85rem;
  font-family: var(--font-body);
  font-weight: 600;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 87, 34, 0.35);
}

.page-news .filter-btn[aria-pressed="false"] {
  background: var(--surface-light);
  color: var(--text-secondary);
  border: 1px solid var(--divider);
}

.page-news .filter-btn[aria-pressed="false"]:hover,
.page-news .filter-btn[aria-pressed="false"]:focus-visible {
  background: var(--surface);
  color: var(--text);
  border-color: var(--secondary);
  outline: none;
}

/* ── 通用章节 ── */
.page-news .page-news__section {
  padding: 56px 0 40px;
}

.page-news .container {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 16px;
}

.page-news .section__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-headings);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  color: var(--text);
  margin: 0 0 36px;
  letter-spacing: 0.02em;
}

.page-news .section__title-num {
  font-family: var(--font-data);
  font-size: 0.7em;
  color: var(--secondary);
  font-weight: 700;
  opacity: 0.7;
}

.page-news .section__title-text {
  display: inline-block;
  position: relative;
}

.page-news .section__title-text::after {
  content: '';
  display: inline-block;
  width: 40px;
  height: 3px;
  background: var(--secondary);
  margin-left: 14px;
  vertical-align: middle;
  border-radius: 2px;
  opacity: 0.6;
}

/* ── 时间线 ── */
.page-news .timeline {
  position: relative;
  padding-left: 44px;
}

.page-news .timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 12px;
  bottom: 12px;
  width: var(--timeline-line-width);
  background: linear-gradient(to bottom, var(--secondary), var(--secondary-light));
  border-radius: 2px;
  opacity: 0.5;
}

.page-news .timeline__item {
  position: relative;
  margin-bottom: 36px;
  display: flex;
  gap: 20px;
}

.page-news .timeline__item:last-child {
  margin-bottom: 0;
}

.page-news .timeline__dot-col {
  position: absolute;
  left: -44px;
  top: 0;
  width: 44px;
  display: flex;
  justify-content: center;
  padding-top: 20px;
  flex-shrink: 0;
}

.page-news .timeline__dot-link {
  display: block;
  text-decoration: none;
  line-height: 0;
  transition: transform var(--transition);
}

.page-news .timeline__dot-link:hover,
.page-news .timeline__dot-link:focus-visible {
  transform: scale(1.25);
  outline: none;
}

.page-news .timeline__dot {
  display: block;
  width: var(--timeline-dot-size);
  height: var(--timeline-dot-size);
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--secondary);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.15);
  transition: all var(--transition);
  cursor: pointer;
}

.page-news .timeline__dot-link:hover .timeline__dot,
.page-news .timeline__dot-link:focus-visible .timeline__dot {
  background: var(--accent);
  border-color: var(--accent-light);
  box-shadow: 0 0 0 6px rgba(255, 87, 34, 0.25);
}

.page-news .timeline__card {
  flex: 1;
  min-width: 0;
}

/* ── 卡片共享 ── */
.page-news .card {
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}

.page-news .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
  border-color: var(--secondary);
}

.page-news .card__img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-news .card__body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .card__title {
  font-family: var(--font-headings);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.page-news .card__summary {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

.page-news .card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--secondary);
  text-decoration: none;
  padding: 6px 0;
  transition: color var(--transition), gap var(--transition);
  align-self: flex-start;
}

.page-news .card__link::after {
  content: '→';
  transition: transform var(--transition);
}

.page-news .card__link:hover,
.page-news .card__link:focus-visible {
  color: var(--accent);
  gap: 10px;
  outline: none;
}

.page-news .card__link:hover::after,
.page-news .card__link:focus-visible::after {
  transform: translateX(4px);
}

.page-news .timeline__card .card__body {
  padding: 18px 20px;
}

/* ── 标签 ── */
.page-news .tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-body);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  align-self: flex-start;
  background: var(--surface-light);
  color: var(--text-secondary);
  border: 1px solid var(--divider);
}

.page-news .tag--update {
  background: rgba(27, 94, 32, 0.35);
  color: #81C784;
  border-color: var(--primary);
}

.page-news .tag--insight {
  background: rgba(212, 175, 55, 0.2);
  color: var(--secondary-light);
  border-color: var(--secondary);
}

.page-news .tag--tip {
  background: rgba(255, 87, 34, 0.2);
  color: var(--accent-light);
  border-color: var(--accent);
}

/* ── 数据洞察网格 ── */
.page-news .insight-grid,
.page-news .tip-grid {
  gap: var(--gap);
}

.page-news .insight-card,
.page-news .tip-card {
  height: 100%;
}

/* ── 联系条 ── */
.page-news .page-news__connect {
  padding: 32px 0 48px;
}

.page-news .connect-card {
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: var(--card-radius);
  padding: 28px 32px;
  text-align: center;
}

.page-news .connect__text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.7;
}

.page-news .connect__text a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition);
}

.page-news .connect__text a:hover,
.page-news .connect__text a:focus-visible {
  color: var(--accent);
  outline: none;
}

/* ── 栅格覆盖 ── */
.page-news .grid {
  display: grid;
  gap: var(--gap);
}

.page-news .grid-cols-2 {
  grid-template-columns: 1fr;
}

/* ── 移动端优先适配 ── */
@media (max-width: 639px) {
  .page-news .page-news__hero {
    padding: 60px 0 32px;
    min-height: auto;
  }

  .page-news .hero__title::after {
    width: 50px;
  }

  .page-news .filter-bar {
    gap: 8px;
  }

  .page-news .filter-btn {
    padding: 6px 14px;
    font-size: 0.78rem;
  }

  .page-news .page-news__section {
    padding: 36px 0 28px;
  }

  .page-news .section__title {
    margin-bottom: 24px;
  }

  .page-news .timeline {
    padding-left: 36px;
  }

  .page-news .timeline::before {
    left: 16px;
  }

  .page-news .timeline__dot-col {
    left: -36px;
    width: 36px;
    padding-top: 16px;
  }

  .page-news .timeline__dot {
    width: 14px;
    height: 14px;
    border-width: 2px;
  }

  .page-news .timeline__item {
    gap: 14px;
    margin-bottom: 28px;
  }

  .page-news .card__body {
    padding: 14px;
  }

  .page-news .card__title {
    font-size: 1rem;
  }

  .page-news .connect-card {
    padding: 20px 16px;
  }
}

/* ── 桌面端 ── */
@media (min-width: 640px) {
  .page-news .page-news__hero {
    padding: 100px 0 60px;
  }

  .page-news .hero__container {
    padding: 0 32px;
  }

  .page-news .page-news__section {
    padding: 72px 0 56px;
  }

  .page-news .container {
    padding: 0 32px;
  }

  .page-news .grid-cols-2 {
    grid-template-columns: 1fr 1fr;
  }

  .page-news .timeline {
    padding-left: 60px;
  }

  .page-news .timeline::before {
    left: 28px;
  }

  .page-news .timeline__dot-col {
    left: -60px;
    width: 60px;
  }

  .page-news .timeline__item {
    gap: 28px;
    margin-bottom: 44px;
  }

  .page-news .card__body {
    padding: 24px;
  }

  .page-news .timeline__card .card__body {
    padding: 22px 24px;
  }
}

@media (min-width: 1024px) {
  .page-news .hero__container {
    padding: 0 48px;
  }

  .page-news .container {
    padding: 0 48px;
  }

  .page-news .page-news__hero {
    padding: 120px 0 72px;
    --hero-min-height: 480px;
  }

  .page-news .page-news__section {
    padding: 88px 0 64px;
  }

  .page-news .timeline {
    padding-left: 80px;
  }

  .page-news .timeline::before {
    left: 38px;
  }

  .page-news .timeline__dot-col {
    left: -80px;
    width: 80px;
  }

  .page-news .timeline__item {
    gap: 36px;
    margin-bottom: 52px;
  }
}