.page-news {
  padding: var(--space-4) 0 var(--space-7);
}

.page-news__top {
  padding-top: var(--space-3);
  padding-bottom: var(--space-4);
}

.page-news__crumb {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.page-news__crumb a {
  color: var(--text-secondary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color var(--ease);
}

.page-news__crumb a:hover,
.page-news__crumb a:focus-visible {
  color: var(--accent-orange);
}

.page-news__crumb-sep {
  color: var(--border-line);
}

.page-news__masthead h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.15;
  margin: var(--space-2) 0 var(--space-2);
  max-width: 15em;
  letter-spacing: 0.01em;
}

.page-news__lead {
  max-width: 42em;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.page-news__index {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  padding-top: var(--space-3);
}

.page-news__feature {
  background: var(--bg-panel);
  border: 2px solid var(--border-line);
  box-shadow: var(--shadow-strong);
  padding: var(--space-4);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-news__feature:hover {
  border-color: #3D5F8F;
  box-shadow: 0 10px 0 rgba(0, 0, 0, 0.3);
}

.page-news__feature-topline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.page-news__feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

.page-news__icon {
  color: var(--accent-orange);
  flex: 0 0 auto;
}

.page-news__feature-date {
  margin-left: auto;
  font-size: 0.8125rem;
  color: var(--accent-gold);
}

.page-news__feature h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.8rem);
  line-height: 1.1;
  margin: var(--space-3) 0 var(--space-2);
  letter-spacing: 0.01em;
}

.page-news__feature-desc {
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 46em;
}

.page-news__feature-stats {
  list-style: none;
  margin: var(--space-3) 0;
  padding: var(--space-2);
  border: 1px solid var(--border-line);
  background: rgba(10, 30, 63, 0.5);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

.page-news__feature-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: var(--space-2);
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--border-line);
}

.page-news__feature-stats li:first-child {
  border-left-color: var(--accent-orange);
}

.page-news__feature-stats li:nth-child(2) {
  border-left-color: var(--accent-gold);
}

.page-news__feature-stats li:nth-child(3) {
  border-left-color: var(--live-green);
}

.page-news__feature-stats strong {
  font-size: 1.8rem;
  color: var(--accent-gold);
  line-height: 1;
}

.page-news__feature-stats span {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.page-news__feature-note {
  color: var(--text-secondary);
  line-height: 1.7;
  border-left: 3px solid var(--accent-orange);
  padding-left: var(--space-3);
  margin: var(--space-3) 0;
}

.page-news__feature-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.page-news__rail {
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-left: 4px solid var(--accent-gold);
  box-shadow: var(--shadow-panel);
  padding: var(--space-4);
  align-self: start;
}

.page-news__rail-block + .page-news__rail-block {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-line);
}

.page-news__rail-title {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: var(--space-3);
}

.page-news__rail-title::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent-orange);
  flex: 0 0 auto;
}

.page-news__rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-news__rail-list li {
  border-bottom: 1px solid var(--border-line);
}

.page-news__rail-list li:last-child {
  border-bottom: 0;
}

.page-news__rail-list a {
  display: flex;
  padding: var(--space-2) 0;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color var(--ease), padding-left var(--ease);
}

.page-news__rail-list a:hover,
.page-news__rail-list a:focus-visible {
  color: var(--accent-orange);
  padding-left: var(--space-1);
}

.page-news__hot-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
  counter-reset: hotItem;
}

.page-news__hot-list li {
  counter-increment: hotItem;
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  font-size: 0.875rem;
}

.page-news__hot-list li::before {
  content: counter(hotItem, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-gold);
  flex: 0 0 auto;
}

.page-news__hot-list a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 500;
  transition: color var(--ease);
}

.page-news__hot-list a:hover,
.page-news__hot-list a:focus-visible {
  color: var(--accent-orange);
}

.page-news__hot-time {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
  flex: 0 0 auto;
}

.page-news__section {
  padding: var(--space-5) 0 var(--space-2);
  margin-top: var(--space-4);
  border-top: 1px solid var(--border-line);
}

.page-news__section-head {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.page-news__section-title h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 2.4rem);
  line-height: 1.2;
  margin: 0;
}

.page-news__section-desc {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: var(--space-1) 0 0;
  max-width: 38em;
}

.page-news__rhythm {
  margin-left: auto;
  color: var(--accent-gold);
  font-size: 0.8125rem;
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  padding: var(--space-1) var(--space-2);
  align-self: center;
}

.page-news__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  background: var(--accent-orange);
  color: var(--text-inverse);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: var(--radius);
  flex: 0 0 auto;
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.25);
}

.page-news__filter {
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.page-news__filter-btn {
  font-size: 0.8125rem;
  padding-top: 0.4rem;
  padding-bottom: 0.4rem;
  border-width: 1px;
}

.page-news__filter-btn[aria-pressed="true"] {
  background: var(--accent-orange);
  border-color: var(--accent-orange);
  color: var(--text-inverse);
  font-weight: 700;
}

.page-news__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-news__item[hidden] {
  display: none;
}

.page-news__details {
  background: var(--bg-panel);
}

.page-news__item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--border-line);
  background: var(--bg-panel);
  transition: background var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-news__item summary::-webkit-details-marker {
  display: none;
}

.page-news__item summary:hover,
.page-news__item summary:focus-visible {
  background: var(--bg-elevated);
  border-color: var(--accent-orange);
  box-shadow: var(--shadow-panel);
}

.page-news__item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-gold);
  flex: 0 0 auto;
  font-size: 1.125rem;
}

.page-news__details[open] summary::after {
  content: "−";
}

.page-news__item-tag {
  flex: 0 0 auto;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-left: 3px solid var(--border-line);
  background: rgba(255, 255, 255, 0.04);
}

.page-news__item-tag--notice {
  border-left-color: var(--accent-orange);
  color: var(--accent-orange);
}

.page-news__item-tag--update {
  border-left-color: var(--accent-gold);
  color: var(--accent-gold);
}

.page-news__item-tag--guide {
  border-left-color: var(--live-green);
  color: var(--live-green);
}

.page-news__item-tag--maintain {
  border-left-color: var(--text-secondary);
  color: var(--text-secondary);
}

.page-news__item-title {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9375rem;
  line-height: 1.4;
}

.page-news__item-time {
  margin-left: auto;
  flex: 0 0 auto;
  font-size: 0.8125rem;
  color: var(--accent-gold);
  white-space: nowrap;
}

.page-news__item-body {
  padding: var(--space-3);
  border: 1px solid var(--border-line);
  border-top: 0;
  background: rgba(10, 30, 63, 0.6);
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-news__item-body p {
  margin: 0 0 var(--space-2);
}

.page-news__item-body p:last-child {
  margin-bottom: 0;
}

.page-news__more {
  color: var(--accent-orange);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 700;
}

.page-news__more:hover,
.page-news__more:focus-visible {
  color: var(--accent-gold);
}

.page-news__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  padding: var(--space-5) 0 var(--space-2);
  border-top: 1px solid var(--border-line);
  margin-top: var(--space-4);
}

.page-news__split-body {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.page-news__split-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 2.4rem);
  line-height: 1.2;
  margin: 0 0 var(--space-2);
}

.page-news__split-desc {
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 var(--space-3);
}

.page-news__split-note {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  border-left: 3px solid var(--border-line);
  padding-left: var(--space-3);
  margin-top: var(--space-3);
}

.page-news__fact-list {
  list-style: none;
  margin: var(--space-3) 0;
  padding: var(--space-3);
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  box-shadow: var(--shadow-panel);
  display: grid;
  gap: var(--space-2);
}

.page-news__fact-list li {
  padding-left: var(--space-2);
  border-left: 3px solid var(--border-line);
  line-height: 1.6;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.page-news__fact-list li:nth-child(1) {
  border-left-color: var(--accent-orange);
}

.page-news__fact-list li:nth-child(2) {
  border-left-color: var(--accent-gold);
}

.page-news__fact-list li:nth-child(3) {
  border-left-color: var(--live-green);
}

.page-news__fact-list strong {
  color: var(--text-primary);
  font-weight: 700;
}

.page-news__steps {
  list-style: none;
  margin: var(--space-3) 0;
  padding: 0;
  counter-reset: newsStep;
  display: grid;
  gap: var(--space-2);
}

.page-news__steps li {
  counter-increment: newsStep;
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  padding: var(--space-2);
  border-left: 3px solid var(--accent-orange);
  background: var(--bg-panel);
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.9375rem;
}

.page-news__steps li::before {
  content: counter(newsStep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-gold);
  flex: 0 0 auto;
}

.page-news__inline-btn {
  margin-top: var(--space-2);
}

.page-news__figure {
  margin: 0;
}

.page-news__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.page-news__split .page-news__figure {
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  padding: var(--space-2);
  box-shadow: var(--shadow-panel);
}

.page-news__figure figcaption {
  margin-top: var(--space-1);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-news__maintain {
  padding: var(--space-5) 0 var(--space-2);
  border-top: 1px solid var(--border-line);
  margin-top: var(--space-4);
}

.page-news__maintain-head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.page-news__maintain-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 2.4rem);
  line-height: 1.2;
  margin: 0;
}

.page-news__maintain-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.page-news__maintain-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-top: 4px solid var(--border-line);
  box-shadow: var(--shadow-panel);
  padding: var(--space-4);
  transition: border-top-color var(--ease), background var(--ease);
}

.page-news__maintain-card:hover {
  border-top-color: var(--accent-gold);
  background: var(--bg-elevated);
}

.page-news__maintain-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin: 0 0 var(--space-2);
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.page-news__maintain-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0;
}

.page-news__maintain-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding: var(--space-3);
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
}

.page-news__maintain-actions .mono {
  margin-right: auto;
  color: var(--accent-gold);
  font-size: 0.875rem;
}

.page-news__maintain-actions a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 500;
  font-size: 0.875rem;
  transition: color var(--ease);
}

.page-news__maintain-actions a:hover,
.page-news__maintain-actions a:focus-visible {
  color: var(--accent-orange);
}

.page-news [id] {
  scroll-margin-top: calc(var(--header-h) + var(--space-3));
}

.page-news a:focus-visible,
.page-news button:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--accent-orange);
  outline-offset: 3px;
}

@media (max-width: 560px) {
  .page-news__item-tag {
    order: 1;
  }

  .page-news__item-time {
    order: 2;
  }

  .page-news__item-title {
    order: 3;
    flex-basis: 100%;
    white-space: normal;
  }

  .page-news__item summary::after {
    order: 4;
  }

  .page-news__feature-stats {
    grid-template-columns: 1fr 1fr;
  }

  .page-news__section-head {
    gap: var(--space-2);
  }

  .page-news__rhythm {
    margin-left: 0;
    flex-basis: 100%;
  }

  .page-news__split-body {
    gap: var(--space-2);
  }
}

@media (min-width: 760px) {
  .page-news__index {
    grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr);
    gap: var(--space-4);
  }

  .page-news__feature {
    padding: var(--space-5);
  }

  .page-news__feature-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-news__split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-5);
    align-items: center;
  }

  .page-news__split--reverse .page-news__figure {
    order: 1;
  }

  .page-news__split--reverse .page-news__split-body {
    order: 2;
  }

  .page-news__maintain-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1100px) {
  .page-news__index {
    gap: var(--space-5);
  }

  .page-news__rail {
    padding: var(--space-5);
  }

  .page-news__section,
  .page-news__split,
  .page-news__maintain {
    padding-top: var(--space-6);
  }

  .page-news__section-head {
    align-items: center;
  }

  .page-news__list {
    gap: var(--space-2);
  }

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

  .page-news__item summary,
  .page-news__item-body {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

@media (min-width: 1200px) {
  .page-news__maintain-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
  }

  .page-news__split {
    gap: var(--space-6);
  }
}