.page-news {
  --news-panel-hi: #16324b;
  --news-rule: 1px solid var(--line-hair);
  --news-split: clamp(1.5rem, 4vw, 3rem);
  --news-body: #c9d5e0;
}

/* 面包屑与首屏 */
.page-news .news-crumb {
  padding-top: calc(var(--header-h) + 1.25rem);
}

.page-news .news-hero {
  padding-top: clamp(1rem, 2vw, 1.75rem);
}

.page-news .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-split);
  align-items: start;
}

.page-news .hero-copy .display-xl {
  margin: 0.55rem 0 1rem;
  line-height: 1.04;
}

.page-news .hero-copy .lede {
  max-width: 58ch;
  margin: 0;
}

.page-news .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-hair);
  border: var(--news-rule);
}

.page-news .fact {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 1.05rem 1.1rem;
  background: var(--ink-panel);
}

.page-news .fact-val {
  font-size: clamp(1.4rem, 3.2vw, 1.9rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--signal-green);
  font-variant-numeric: tabular-nums;
}

.page-news .fact-val--amber {
  color: var(--amber-node);
}

.page-news .fact-key {
  font-size: var(--step-index);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist-gray);
}

/* 本期重点 Bento 块 */
.page-news .focus-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  padding: clamp(1.25rem, 3vw, 2.1rem);
  background-image: linear-gradient(135deg, rgba(0, 230, 118, 0.12), rgba(18, 41, 63, 0.94) 46%);
  background-color: var(--ink-panel);
  border: var(--news-rule);
  box-shadow: inset 3px 0 0 var(--signal-green);
}

.page-news .focus-main .section-title {
  margin: 0.35rem 0 0.75rem;
}

.page-news .focus-text {
  margin: 0 0 1rem;
  max-width: 60ch;
  color: var(--news-body);
}

.page-news .focus-line {
  margin: 0;
  padding: 0.6rem 0;
  border-top: 1px dashed var(--line-hair);
  border-bottom: 1px dashed var(--line-hair);
  font-size: var(--step-note);
  letter-spacing: 0.02em;
  color: var(--mist-gray);
  font-variant-numeric: tabular-nums;
}

.page-news .focus-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.1rem;
}

.page-news .focus-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
  align-content: start;
}

.page-news .focus-points li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.5rem;
  margin: 0;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line-hair);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--news-body);
}

.page-news .focus-points li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .point-idx {
  font-size: var(--step-index);
  letter-spacing: 0.08em;
  color: var(--amber-node);
  padding-top: 0.22rem;
}

/* 索引区 */
.page-news .section-lede {
  margin: 0;
  max-width: 54ch;
  color: var(--news-body);
}

.page-news .chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.25rem 0 1.5rem;
}

.page-news .chip {
  font: inherit;
  font-size: var(--step-note);
  letter-spacing: 0.06em;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--line-hair);
  background: transparent;
  color: var(--paper-cream);
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .chip:hover {
  border-color: var(--signal-green);
  color: var(--signal-green);
}

.page-news .chip[aria-pressed="true"] {
  background: var(--signal-green);
  border-color: var(--signal-green);
  color: var(--ink-deep);
  font-weight: 700;
}

.page-news .chip:focus-visible {
  outline: 2px solid var(--amber-node);
  outline-offset: 2px;
}

.page-news .phase-jump {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--news-rule);
}

.page-news .phase-jump li {
  border-bottom: var(--news-rule);
}

.page-news .phase-jump a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0.15rem;
  font-size: 0.875rem;
  color: var(--paper-cream);
  text-decoration: none;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-news .phase-jump a::after {
  content: "↓";
  font-size: var(--step-note);
  color: var(--rust-orange);
}

.page-news .phase-jump a:hover {
  color: var(--signal-green);
  padding-left: 0.45rem;
}

.page-news .index-cover {
  margin: 0;
}

.page-news .index-cover img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--news-rule);
}

/* 时间线 + 条目 */
.page-news .topic-timeline {
  display: grid;
  gap: 0;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-news .phase-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  padding: clamp(1.5rem, 3vw, 2.25rem) 0;
  border-top: var(--news-rule);
}

.page-news .phase-group:last-child {
  border-bottom: var(--news-rule);
}

.page-news .phase-axis {
  align-self: start;
}

.page-news .phase-title {
  margin: 0.35rem 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper-cream);
}

.page-news .phase-note {
  margin: 0;
  font-size: var(--step-note);
  line-height: 1.7;
  color: var(--mist-gray);
}

.page-news .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-news .entry {
  padding: 0.9rem 1rem 1rem;
  background: var(--ink-panel);
  border: var(--news-rule);
  border-left: 2px solid var(--line-hair);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  border-left-color: var(--signal-green);
  background: var(--news-panel-hi);
  transform: translateX(2px);
}

.page-news .entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.page-news .entry-time {
  font-size: var(--step-index);
  letter-spacing: 0.06em;
  color: var(--mist-gray);
}

.page-news .entry-title {
  margin: 0.6rem 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-cream);
}

.page-news .entry-summary {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--news-body);
}

.page-news .entry-link {
  display: inline-block;
  margin-top: 0.65rem;
  font-size: var(--step-note);
  letter-spacing: 0.05em;
  color: var(--signal-green);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-news .entry-link:hover {
  border-bottom-color: currentColor;
}

/* 长线专题 */
.page-news .longform-figure {
  margin: 0 0 clamp(1.5rem, 3vw, 2.4rem);
}

.page-news .longform-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--news-rule);
}

.page-news .longform-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-news .longform-item {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.2rem 1.25rem 1.35rem;
  background: var(--paper-cream);
  color: var(--black-brown);
  border-top: 3px solid var(--rust-orange);
}

.page-news .lf-index {
  margin: 0;
  font-size: var(--step-index);
  letter-spacing: 0.14em;
  color: var(--rust-orange);
}

.page-news .lf-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.page-news .longform-item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: #3d342c;
}

.page-news .longform-item .entry-link {
  margin-top: auto;
  padding-top: 0.5rem;
  color: var(--green-deep);
  font-weight: 700;
}

/* 版本迭代 */
.page-news .version-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-split);
  align-items: start;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-news .version-figure {
  margin: 0;
}

.page-news .version-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--news-rule);
}

.page-news .version-groups {
  display: grid;
  gap: 0.75rem;
}

.page-news .version-group {
  background: var(--ink-panel);
  border: var(--news-rule);
}

.page-news .version-group summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  list-style: none;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--paper-cream);
  transition: color var(--dur) var(--ease);
}

.page-news .version-group summary::-webkit-details-marker {
  display: none;
}

.page-news .version-group summary::after {
  content: "＋";
  font-size: 1rem;
  color: var(--amber-node);
}

.page-news .version-group summary:hover {
  color: var(--signal-green);
}

.page-news .version-group summary:focus-visible {
  outline: 2px solid var(--signal-green);
  outline-offset: -2px;
}

.page-news .version-group[open] summary {
  color: var(--signal-green);
  border-bottom: var(--news-rule);
}

.page-news .version-group[open] summary::after {
  content: "－";
}

.page-news .version-list {
  list-style: none;
  margin: 0;
  padding: 0.3rem 0 0.45rem;
}

.page-news .version-item {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.7rem;
  padding: 0.65rem 1rem;
  border-top: 1px solid rgba(42, 65, 89, 0.6);
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--news-body);
}

.page-news .version-item:first-child {
  border-top: 0;
}

.page-news .version-item strong {
  color: var(--paper-cream);
  font-weight: 700;
}

.page-news .version-no {
  font-size: var(--step-index);
  letter-spacing: 0.06em;
  color: var(--rust-orange);
  padding-top: 0.28rem;
}

/* 纠错与通报 */
.page-news .log-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-split);
  align-items: start;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-news .log-steps {
  counter-reset: log;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-news .log-steps li {
  counter-increment: log;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.75rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line-hair);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--news-body);
}

.page-news .log-steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .log-steps li::before {
  content: counter(log, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--step-index);
  letter-spacing: 0.06em;
  color: var(--amber-node);
  padding-top: 0.3rem;
}

.page-news .log-figure {
  margin: 0;
}

.page-news .log-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--news-rule);
}

/* 订阅与归档 */
.page-news .archive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-news .archive-item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.85rem;
  padding: 1rem 1.1rem 1.15rem;
  border: var(--news-rule);
  background-image: linear-gradient(180deg, rgba(18, 41, 63, 0.92), rgba(11, 27, 43, 0.94));
}

.page-news .archive-no {
  font-size: var(--step-note);
  letter-spacing: 0.08em;
  color: var(--rust-orange);
  padding-top: 0.2rem;
}

.page-news .archive-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper-cream);
}

.page-news .archive-item p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--news-body);
}

.page-news .archive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

/* 响应式 */
@media (min-width: 720px) {
  .page-news .longform-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-news .focus-bento {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }
  .page-news .version-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
  .page-news .log-layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
  .page-news .longform-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-news .phase-group {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(1.5rem, 4vw, 3rem);
  }
  .page-news .phase-axis {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    padding-left: 1rem;
    border-left: 2px solid var(--line-hair);
    transition: border-color var(--dur) var(--ease);
  }
  .page-news .phase-group.is-active .phase-axis {
    border-left-color: var(--signal-green);
  }
}

@media (max-width: 420px) {
  .page-news .hero-facts {
    grid-template-columns: 1fr;
  }
  .page-news .entry:hover {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .chip,
  .page-news .phase-jump a {
    transition: none;
  }
  .page-news .entry:hover,
  .page-news .entry:focus-within {
    transform: none;
  }
}