.page-news {
  --news-gap: clamp(20px, 3vw, 40px);
  background: var(--ink-900);
  color: var(--paper-0);
  padding: clamp(24px, 4vw, 48px) 0 clamp(56px, 8vw, 120px);
  overflow-x: clip;
}

.page-news .mono {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.page-news img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-news .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-news .breadcrumbs li + li::before {
  content: "/";
  color: var(--ink-700);
}

.page-news .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur);
}

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

/* 首屏 */
.news-hero {
  margin-top: clamp(22px, 3.5vw, 44px);
  padding-bottom: clamp(24px, 4vw, 48px);
  border-bottom: 1px solid var(--ink-700);
}

.news-hero__kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
}

.news-hero h1 {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(2.1rem, 6vw, 4.4rem);
  line-height: 1.03;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.news-hero__lead {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--paper-1);
  font-size: clamp(0.95rem, 1.4vw, 1.08rem);
  line-height: 1.8;
}

.news-hero__strip {
  display: grid;
  gap: 20px;
  margin-top: clamp(24px, 3.5vw, 40px);
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  align-items: start;
}

.strip__cell {
  border-left: 2px solid var(--signal);
  padding-left: 12px;
}

.strip__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.1;
  color: var(--paper-0);
}

.strip__txt {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.news-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  grid-column: 1 / -1;
}

/* 主体骨架：左刻度 + 右列表 */
.news-shell {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(26px, 4vw, 46px);
}

.news-rail {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink-700);
}

.rail__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: max-content;
}

.rail__label {
  margin: 0 0 2px;
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.rail__node {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px 0 6px 12px;
  border-left: 1px solid var(--ink-700);
  text-decoration: none;
  transition: border-color var(--dur), background var(--dur);
}

.rail__node:hover,
.rail__node:focus-visible {
  border-left-color: var(--cyan);
  background: var(--ink-800);
}

.rail__node--active {
  border-left-color: var(--signal);
}

.rail__ver {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--paper-0);
}

.rail__node--active .rail__ver {
  color: var(--signal);
}

.rail__desc {
  font-size: 11px;
  color: var(--muted);
}

.rail__rounds {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rail__round {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--ink-700);
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}

.rail__round:hover,
.rail__round:focus-visible {
  border-color: var(--signal);
  color: var(--paper-0);
}

.rail__round--current {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink-900);
  font-weight: 700;
}

/* 章节 */
.news-section {
  padding: clamp(26px, 4vw, 46px) 0;
  border-top: 1px solid var(--ink-700);
}

.news-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.news-section__head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.news-section__head h2 {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.45rem, 3vw, 2.3rem);
  line-height: 1.12;
  letter-spacing: -0.005em;
  max-width: 20ch;
}

.news-section__note {
  margin: 0;
  flex: 1 1 240px;
  max-width: 48ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* 置顶公告 */
.pin {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(18px, 3vw, 32px);
  background: var(--ink-800);
  border-left: 3px solid var(--signal);
}

.pin h3 {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.6vw, 1.9rem);
  line-height: 1.2;
}

.pin__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--ink-700);
  padding-top: 16px;
}

.pin__list li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--paper-1);
}

.pin__list .mono {
  color: var(--cyan);
}

.pin__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* 列表条目 */
.feed {
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-item {
  padding: clamp(16px, 2.4vw, 26px) clamp(10px, 1.6vw, 16px);
  margin-inline: calc(-1 * clamp(10px, 1.6vw, 16px));
  border-top: 1px solid var(--ink-700);
  transition: background var(--dur), box-shadow var(--dur);
}

.news-item:first-child {
  border-top: 1px solid var(--ink-700);
}

.news-item:hover,
.news-item:focus-within {
  background: var(--ink-800);
  box-shadow: inset 2px 0 0 var(--signal);
}

.news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0;
  color: var(--muted);
}

.news-item__meta .mono {
  color: var(--muted);
}

.news-item__time {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--muted);
  transition: color var(--dur);
}

.news-item:hover .news-item__time {
  color: var(--cyan);
}

.news-item h3 {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: clamp(1.1rem, 2.1vw, 1.5rem);
  line-height: 1.28;
}

.news-item__sum {
  margin: 10px 0 0;
  max-width: 66ch;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--paper-1);
}

.news-item--feature {
  display: grid;
  gap: clamp(16px, 2.5vw, 28px);
}

/* 折叠 */
.news-more {
  margin-top: 8px;
}

.news-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

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

.news-more summary::before {
  content: "+";
  display: inline-block;
  width: 16px;
  text-align: center;
  color: var(--signal);
}

.news-more[open] summary::before {
  content: "−";
}

.news-more ul {
  margin: 4px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--paper-1);
}

/* 图片 */
.news-figure {
  margin: 0;
}

.news-figure figcaption {
  margin-top: 8px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.news-figure .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#reports .news-figure {
  margin-bottom: clamp(16px, 3vw, 28px);
}

/* 周报状态点阵 */
.weekly-dots {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

.dot-grid {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 5px;
}

.dot {
  display: block;
  width: 10px;
  height: 10px;
  background: var(--cyan);
}

.dot--alert {
  background: var(--alert);
}

.dot--muted {
  background: var(--ink-700);
}

.weekly-dots__txt {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* 更新节奏：反转色块 */
.rhythm {
  background: var(--paper-0);
  color: var(--ink-900);
  padding: clamp(22px, 3.5vw, 44px) clamp(16px, 3vw, 40px);
}

.rhythm h2 {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.4rem, 2.8vw, 2.2rem);
  line-height: 1.15;
  color: var(--ink-900);
}

.rhythm__note {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--ink-700);
}

.rhythm__figure {
  margin: clamp(18px, 3vw, 28px) 0;
}

.rhythm__figure figcaption {
  color: var(--ink-700);
}

.rhythm__rows {
  display: grid;
  gap: 0;
}

.rhythm__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--paper-1);
}

.rhythm__row:last-child {
  border-bottom: 1px solid var(--paper-1);
}

.rhythm__time {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--signal);
  font-weight: 700;
}

.rhythm__row p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--ink-800);
}

/* 订阅与联系 */
.subscribe {
  display: grid;
  gap: clamp(16px, 2.6vw, 26px);
  padding: clamp(20px, 3vw, 36px);
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  border-top: 2px solid var(--signal);
}

.subscribe h2 {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.7vw, 2.1rem);
  line-height: 1.16;
}

.subscribe__text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--paper-1);
}

.subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.subscribe__mail {
  display: inline-block;
  padding: 8px 12px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  color: var(--cyan);
  font-size: 12.5px;
  word-break: break-all;
}

.copy-btn {
  min-height: 44px;
  padding: 0 16px;
  background: transparent;
  border: 1px solid var(--ink-700);
  color: var(--paper-0);
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: border-color var(--dur), color var(--dur), background var(--dur);
}

.copy-btn:hover,
.copy-btn:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.copy-status {
  margin: 0;
  min-height: 1.2em;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--cyan);
}

/* 平板及以上：左轨道常驻 */
@media (min-width: 720px) {
  .news-item--feature {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .rhythm__row {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 960px) {
  .news-shell {
    grid-template-columns: 112px minmax(0, 1fr);
    align-items: start;
  }

  .news-rail {
    position: sticky;
    top: 104px;
    flex-direction: column;
    gap: 26px;
    overflow: visible;
    padding: 0 0 0 0;
    border-bottom: 0;
    border-right: 1px solid var(--ink-700);
    padding-right: 12px;
    align-self: start;
  }

  .rail__group {
    min-width: 0;
  }

  .rail__rounds {
    flex-wrap: wrap;
  }

  .pin {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .news-hero__cta {
    grid-column: auto;
    justify-content: flex-end;
  }
}

@media (min-width: 1200px) {
  .pin {
    grid-template-columns: minmax(0, 1fr) 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .copy-btn,
  .page-news .rail__node,
  .page-news .rail__round,
  .page-news .news-item__time,
  .page-news .breadcrumbs a {
    transition: none;
  }
}
<<<END>>>>