.page-news {
  --news-rail: 220px;
  --news-rule: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
}

/* 首屏拼贴 */
.page-news .journal-hero {
  padding-bottom: clamp(28px, 5vw, 56px);
}

.page-news .journal-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-news .journal-hero__lead .display {
  margin: 12px 0 18px;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-news .journal-hero__lead .lede {
  max-width: 46ch;
  margin: 0 0 26px;
}

.page-news .journal-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .journal-hero__panel {
  background: linear-gradient(165deg, var(--surface) 0%, var(--pitch-950) 100%);
  border: var(--news-rule);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 30px);
}

.page-news .hero-facts {
  list-style: none;
  margin: 12px 0 18px;
  padding: 0;
}

.page-news .hero-facts__item {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.9rem;
}

.page-news .hero-facts__key {
  color: var(--text-dim);
}

.page-news .hero-facts__value {
  font-family: var(--font-num);
  color: var(--text);
  letter-spacing: 0.01em;
}

.page-news .hero-facts__live {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* 置顶专题 */
.page-news .featured {
  display: grid;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: var(--news-rule);
  background: linear-gradient(150deg, var(--pitch-800) 0%, var(--pitch-950) 58%, var(--ink-900) 100%);
}

.page-news .featured__media {
  margin: 0;
  border-radius: 0;
  min-height: 210px;
}

.page-news .featured__media .media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-news .featured__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(22px, 4vw, 42px);
}

.page-news .featured__body .h2 {
  margin: 0;
  line-height: 1.14;
}

.page-news .featured__text {
  margin: 0;
  color: var(--text-dim);
  line-height: 1.78;
  max-width: 50ch;
}

.page-news .featured__details {
  width: 100%;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-news .featured__details summary {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-num);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

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

.page-news .featured__details summary::after {
  content: "+";
  font-size: 1rem;
  line-height: 1;
}

.page-news .featured__details[open] summary::after {
  content: "–";
}

.page-news .featured__details p {
  margin: 12px 0 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--text-dim);
}

/* 分类轨道 + 连续日志画布 */
.page-news .journal-layout {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-news .journal-rail {
  padding-left: 16px;
  border-left: 2px solid var(--surface-2);
}

.page-news .journal-rail > .eyebrow {
  margin: 0 0 12px;
}

.page-news .journal-rail__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .journal-rail__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.page-news .journal-rail__link:hover,
.page-news .journal-rail__link:focus-visible {
  color: var(--text);
  background: var(--surface-2);
  border-color: var(--moss-500);
}

.page-news .journal-rail__count {
  font-family: var(--font-num);
  font-size: 0.76rem;
  color: var(--moss-500);
}

.page-news .journal-rail__note {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.7;
}

.page-news .journal-stream__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--surface-2);
}

.page-news .journal-stream__head .h2 {
  margin: 0;
}

.page-news .journal-stream__head .dim {
  margin: 0;
  font-size: 0.82rem;
}

.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .log-item {
  display: grid;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px) 0;
  border-top: 1px solid var(--line);
}

.page-news .log-item:nth-child(2) {
  border-top: 0;
  padding-top: clamp(18px, 2.4vw, 26px);
}

.page-news .log-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .phase {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px dashed var(--line);
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  white-space: nowrap;
}

.page-news .log-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.12rem, 2.6vw, 1.48rem);
  line-height: 1.36;
  letter-spacing: -0.01em;
}

.page-news .log-item__text {
  margin: 0;
  max-width: 62ch;
  color: var(--text-dim);
  font-size: 0.96rem;
  line-height: 1.8;
}

.page-news .log-item__figure {
  margin: 6px 0 0;
}

.page-news .log-item__figure .media__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

/* 版本刻度 */
.page-news .versions__head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-news .versions__head .h2 {
  margin: 10px 0 14px;
}

.page-news .versions__head .lede {
  margin: 0;
  max-width: 54ch;
}

.page-news .versions__scale {
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
  color: var(--moss-500);
}

.page-news .versions__scale svg {
  display: block;
  width: 100%;
  min-width: 600px;
  height: auto;
}

.page-news .scale-line {
  stroke: currentColor;
  stroke-width: 1;
  opacity: 0.5;
}

.page-news .scale-dot {
  fill: currentColor;
  transition: transform 0.2s var(--ease);
  transform-box: fill-box;
  transform-origin: center;
}

.page-news .scale-dot--current {
  fill: var(--accent);
}

.page-news .scale-node:hover .scale-dot {
  transform: scale(1.35);
}

.page-news .scale-label {
  fill: var(--text-dim);
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.page-news .scale-label--current {
  fill: var(--accent);
}

.page-news .versions__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

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

.page-news .version-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-top: 1px solid var(--line);
}

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

.page-news .version-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  border: 1px solid var(--moss-500);
  background: var(--surface-2);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.94rem;
}

.page-news .version-item--current .version-badge {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink-900);
}

.page-news .version-item__body {
  display: grid;
  gap: 8px;
}

.page-news .version-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-size: 0.8rem;
}

.page-news .version-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--text);
}

.page-news .versions__aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-news .versions__figure {
  margin: 0;
}

.page-news .versions__aside .dim {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
}

/* 回看与订阅 */
.page-news .follow__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-news .follow__main .h2 {
  margin: 0 0 14px;
}

.page-news .follow__main .lede {
  margin: 0 0 26px;
  max-width: 52ch;
}

.page-news .tag-cloud {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .tag-cloud .tag {
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .tag-cloud .tag:hover,
.page-news .tag-cloud .tag:focus-visible {
  color: var(--accent);
  border-color: var(--moss-500);
}

.page-news .follow__aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-news .follow__figure {
  margin: 0;
}

.page-news .follow__panel {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 3vw, 30px);
  border: var(--news-rule);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.page-news .follow__panel .h3 {
  margin: 0;
}

.page-news .follow__panel-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-news .follow__panel .copy-btn {
  justify-self: start;
}

.page-news .follow__links {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
}

.page-news .follow__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--text);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.18s var(--ease);
}

.page-news .follow__links li:last-child a {
  border-bottom: 0;
}

.page-news .follow__links a::after {
  content: "→";
  color: var(--moss-500);
  font-family: var(--font-num);
}

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

/* 中等屏 */
@media (min-width: 700px) {
  .page-news .featured {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-news .featured__media {
    min-height: 100%;
  }

  .page-news .log-item__figure {
    max-width: 560px;
  }
}

/* 桌面：侧轨 + 连续画布 */
@media (min-width: 960px) {
  .page-news .journal-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-news .journal-layout {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .journal-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-news .journal-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }

  .page-news .journal-rail__link {
    padding: 9px 12px;
    border-color: transparent;
    border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  }

  .page-news .versions__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-news .versions__aside {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-news .follow__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-news .log-item__figure {
    max-width: 620px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .scale-dot,
  .page-news .journal-rail__link,
  .page-news .tag-cloud .tag,
  .page-news .follow__links a {
    transition: none;
  }

  .page-news .scale-node:hover .scale-dot {
    transform: none;
  }
}