.page-news {
  display: block;
  width: 100%;
  max-width: var(--content-max, 1280px);
  margin: 0 auto;
  padding: calc(var(--header-h, 56px) + 1rem) 1rem 2rem;
  box-sizing: border-box;
  color: var(--color-dark, #2B2D42);
  font-family: 'Inter', sans-serif;
  --color-red: #E63946;
  --color-blue: #1D3557;
  --color-gold: #F4A261;
  --color-dark: #2B2D42;
  --color-light: #F1FAEE;
  --color-white: #FFFFFF;
  --gradient-rb: linear-gradient(135deg, #E63946 0%, #1D3557 100%);
  --gradient-gold: linear-gradient(135deg, #F4A261 0%, #E76F51 100%);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-sm: 4px;
  --font-number: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --transition: 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-news__grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-news__index {
  width: 100%;
  padding: 1.5rem 1rem;
  background: var(--color-light, #F1FAEE);
  border-left: 4px solid var(--color-red, #E63946);
  box-sizing: border-box;
}

.page-news__index-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-blue, #1D3557);
  margin: 0 0 0.75rem;
}

.page-news__index-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-news__index-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  text-decoration: none;
  color: var(--color-dark, #2B2D42);
  border-radius: var(--radius-sm, 4px);
  transition: background var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1)), color var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1));
}

.page-news__index-link:hover,
.page-news__index-link.is-active {
  background: var(--color-white, #FFFFFF);
  color: var(--color-red, #E63946);
  box-shadow: var(--shadow-card, 0 4px 20px rgba(0,0,0,0.06));
}

.page-news__index-num {
  font-family: var(--font-number, 'JetBrains Mono', monospace);
  font-weight: 700;
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-gold, #F4A261);
  min-width: 2rem;
}

.page-news__index-label {
  font-size: 0.9rem;
  font-weight: 600;
}

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

.page-news__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-dark, #2B2D42);
  margin-bottom: 1.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(43, 45, 66, 0.1);
}

.page-news__breadcrumb a {
  color: var(--color-blue, #1D3557);
  text-decoration: none;
  font-weight: 500;
}

.page-news__breadcrumb a:hover {
  text-decoration: underline;
}

.page-news__breadcrumb-sep {
  color: var(--color-gold, #F4A261);
}

.page-news__main-title {
  font-size: 2rem;
  font-weight: 700;
  font-style: italic;
  color: var(--color-blue, #1D3557);
  margin: 0 0 1.5rem;
}

.page-news__section {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(43, 45, 66, 0.08);
}

.page-news__section:last-of-type {
  border-bottom: none;
  margin-bottom: 1rem;
}

.page-news__section-number {
  font-family: var(--font-number, 'JetBrains Mono', monospace);
  font-size: 2.5rem;
  font-weight: 800;
  font-style: italic;
  color: var(--color-gold, #F4A261);
  margin: 0 0 0.25rem;
  line-height: 1;
}

.page-news__section-title {
  font-size: 1.75rem;
  font-weight: 700;
  font-style: italic;
  color: var(--color-blue, #1D3557);
  margin: 0 0 0.5rem;
}

.page-news__section-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-dark, #2B2D42);
  opacity: 0.85;
  margin: 0 0 1.25rem;
}

.page-news__card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-news__card-single {
  max-width: 600px;
}

.page-news__card {
  background: var(--color-white, #FFFFFF);
  border: 1px solid rgba(43, 45, 66, 0.1);
  border-radius: var(--radius-lg, 16px);
  box-shadow: var(--shadow-card, 0 4px 20px rgba(0,0,0,0.06));
  overflow: hidden;
  transition: box-shadow var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1));
}

.page-news__card:hover {
  box-shadow: 0 6px 28px rgba(0,0,0,0.1);
}

.page-news__card--highlight {
  border-left: 6px solid var(--color-red, #E63946);
}

.page-news__card-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 400 / 250;
}

.page-news__card-body {
  padding: 1rem 1.25rem 1.25rem;
}

.page-news__card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.page-news .tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm, 4px);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--color-light, #F1FAEE);
  color: var(--color-dark, #2B2D42);
}

.page-news .tag-red {
  background: var(--color-red, #E63946);
  color: #fff;
}

.page-news .tag-gold {
  background: var(--color-gold, #F4A261);
  color: var(--color-dark, #2B2D42);
}

.page-news__card-title {
  font-size: 1.125rem;
  font-weight: 700;
  font-style: italic;
  margin: 0 0 0.5rem;
}

.page-news__card-title a {
  color: var(--color-blue, #1D3557);
  text-decoration: none;
}

.page-news__card-title a:hover {
  color: var(--color-red, #E63946);
  text-decoration: underline;
}

.page-news__card-summary {
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0 0 0.75rem;
  color: var(--color-dark, #2B2D42);
  opacity: 0.8;
}

.page-news__card-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1)), padding var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1));
  padding: 0 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-dark, #2B2D42);
}

.page-news__card[data-expandable="true"][data-open="true"] .page-news__card-detail {
  max-height: 600px;
  padding-top: 0.75rem;
}

.page-news__card-icon-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
  padding: 0.5rem;
  background: rgba(244, 162, 97, 0.08);
  border-radius: var(--radius-md, 8px);
}

.page-news__card-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  max-width: 100%;
  border-radius: var(--radius-sm, 4px);
}

.page-news__icon-label {
  font-family: var(--font-number, 'JetBrains Mono', monospace);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-gold, #F4A261);
}

.page-news__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.page-news__list-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  background: var(--color-white, #FFFFFF);
  border: 1px solid rgba(43, 45, 66, 0.08);
  border-left: 4px solid var(--color-blue, #1D3557);
  border-radius: var(--radius-sm, 4px);
  transition: background var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1));
}

.page-news__list-item:hover {
  background: var(--color-light, #F1FAEE);
}

.page-news__list-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news__list-title {
  font-size: 1rem;
  font-weight: 700;
  font-style: italic;
  margin: 0;
  color: var(--color-blue, #1D3557);
}

.page-news__list-summary {
  font-size: 0.8125rem;
  line-height: 1.4;
  margin: 0;
  color: var(--color-dark, #2B2D42);
  opacity: 0.75;
}

.page-news__list-bg {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  aspect-ratio: 600 / 400;
  object-fit: cover;
  border-radius: var(--radius-md, 8px);
  margin: 1rem 0;
  opacity: 0.65;
}

.page-news__related {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(43, 45, 66, 0.1);
}

.page-news__related-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark, #2B2D42);
}

.page-news .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm, 4px);
  transition: background var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1)), color var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1)), border-color var(--transition, 0.28s cubic-bezier(0.22, 1, 0.36, 1));
  border: 2px solid transparent;
  cursor: pointer;
}

.page-news .btn-ghost {
  background: transparent;
  color: var(--color-blue, #1D3557);
  border-color: var(--color-blue, #1D3557);
}

.page-news .btn-ghost:hover {
  background: var(--color-blue, #1D3557);
  color: var(--color-white, #FFFFFF);
}

@media (min-width: 768px) {
  .page-news {
    padding-left: 2rem;
    padding-right: 2rem;
  }

  .page-news__grid {
    flex-direction: row;
    gap: 2rem;
    align-items: flex-start;
  }

  .page-news__index {
    width: 220px;
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-h, 56px) + 1rem);
    align-self: flex-start;
    padding: 1.5rem;
    border-left: 6px solid var(--color-red, #E63946);
  }

  .page-news__index-title {
    font-size: 1rem;
  }

  .page-news__index-num {
    font-size: 1.5rem;
  }

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

  .page-news__card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .page-news__section-number {
    font-size: 3rem;
  }

  .page-news__section-title {
    font-size: 2rem;
  }

  .page-news__card-title {
    font-size: 1.25rem;
  }

  .page-news__list {
    max-width: 600px;
  }

  .page-news__related {
    gap: 1rem;
  }
}

@media (min-width: 1024px) {
  .page-news {
    padding-left: 3rem;
    padding-right: 3rem;
  }

  .page-news__index {
    width: 260px;
  }

  .page-news__card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}