.page-news {
  --news-rail: 248px;
  --news-time: 132px;
  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--font-body);
  line-height: var(--lh);
  overflow-x: hidden;
}

.page-news .breadcrumb {
  padding: 18px 0 6px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--stone-500);
}

.page-news .breadcrumb a {
  color: var(--ink-700);
  text-decoration: none;
}

.page-news .breadcrumb a:hover {
  color: var(--copper-500);
}

/* ---------- 首屏框景 ---------- */
.page-news .news-hero {
  padding: 20px 0 32px;
}

.page-news .news-hero__frame {
  position: relative;
  background: var(--ink-900);
  background-image:
    linear-gradient(180deg, rgba(20, 48, 76, 0.85) 0%, rgba(11, 27, 43, 1) 62%);
  color: var(--paper-50);
  border: 1px solid var(--line-copper);
  padding: 30px 20px 0;
  overflow: hidden;
}

.page-news .news-hero__frame .frame__tick {
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--copper-500);
  z-index: 2;
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  padding-bottom: 26px;
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-bottom: 18px;
}

.page-news .news-hero__eyebrow {
  color: var(--copper-200);
  font-family: var(--font-mono);
  font-size: var(--index);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-news .news-hero__batch {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(247, 245, 241, 0.72);
  border: 1px solid var(--line-copper);
  padding: 3px 10px;
  border-radius: 2px;
}

.page-news .news-hero__title {
  color: var(--paper-50);
  font-family: var(--font-display);
  font-weight: 200;
  letter-spacing: -0.01em;
  line-height: 1.08;
  margin: 0 0 18px;
  max-width: 18ch;
}

.page-news .news-hero__lede {
  color: rgba(247, 245, 241, 0.8);
  max-width: 62ch;
  font-size: 1rem;
  margin: 0;
}

/* 批次刻度 */
.page-news .ticks {
  display: flex;
  list-style: none;
  margin: 0 -20px;
  padding: 0;
  border-top: 1px solid var(--line-copper);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-news .ticks__item {
  flex: 1 0 auto;
  min-width: 128px;
  border-right: 1px solid rgba(247, 245, 241, 0.12);
}

.page-news .ticks__item:last-child {
  border-right: 0;
}

.page-news .ticks__link,
.page-news .ticks__item--tail {
  display: block;
  padding: 14px 16px 16px;
  text-decoration: none;
  color: inherit;
}

.page-news .ticks__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--copper-200);
  margin-bottom: 6px;
}

.page-news .ticks__label {
  display: block;
  font-size: 0.85rem;
  color: rgba(247, 245, 241, 0.78);
  line-height: 1.4;
}

.page-news .ticks__link:hover .ticks__label {
  color: var(--paper-50);
}

.page-news .ticks__item--now {
  background: rgba(180, 136, 75, 0.14);
}

.page-news .ticks__item--now .ticks__num,
.page-news .ticks__item--now .ticks__label {
  color: var(--paper-50);
}

.page-news .ticks__item--tail .ticks__num {
  color: rgba(247, 245, 241, 0.5);
}

.page-news .ticks__item--tail .ticks__label {
  color: rgba(247, 245, 241, 0.55);
}

/* ---------- 主体两栏 ---------- */
.page-news .news-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding: 40px 0 80px;
}

.page-news .news-rail {
  display: grid;
  gap: 20px;
}

.page-news .toc__title {
  font-family: var(--font-mono);
  font-size: var(--index);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone-500);
  margin: 0 0 12px;
}

.page-news .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  width: 100%;
  padding: 10px 2px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: none;
  font: inherit;
  font-size: 0.88rem;
  color: var(--ink-700);
  text-align: left;
  cursor: pointer;
  position: relative;
  transition: color 180ms var(--ease);
}

.page-news .toc__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  width: 0;
  background: var(--copper-500);
  transition: width 180ms var(--ease);
}

.page-news .toc__link:hover::after,
.page-news .toc__link[aria-current="true"]::after {
  width: 100%;
}

.page-news .toc__link[aria-current="true"] {
  color: var(--ink-900);
  font-weight: 500;
}

.page-news .toc__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--stone-500);
}

.page-news .rail-card {
  background: var(--paper-100);
  border: 1px solid var(--line);
  border-left: 1px solid var(--line-copper);
  padding: 16px 16px 18px;
}

.page-news .rail-card--note {
  background: transparent;
  border-left: 1px solid var(--line);
}

.page-news .rail-card__title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-500);
  margin: 0 0 12px;
}

.page-news .rail-card__text {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--stone-500);
}

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

.page-news .rail-legend__row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  font-size: 0.85rem;
  color: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-news .rail-legend__row:last-child {
  border-bottom: 0;
}

.page-news .rail-legend__dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 1px;
}

.page-news .rail-legend__dot--a { background: var(--copper-500); }
.page-news .rail-legend__dot--b { background: var(--ink-500); }
.page-news .rail-legend__dot--c { background: var(--teal-700); }
.page-news .rail-legend__dot--d { background: var(--stone-500); }

.page-news .rail-legend__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--stone-500);
}

/* ---------- 区块通用 ---------- */
.page-news .news-stream {
  min-width: 0;
}

.page-news .news-block + .news-block {
  margin-top: 64px;
}

.page-news .news-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line-strong);
}

.page-news .news-block__head .section__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--copper-500);
}

.page-news .news-block__head .h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  color: var(--ink-700);
}

/* ---------- 本批变化 ---------- */
.page-news .summary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-news .summary-card {
  background: var(--paper-100);
  border-left: 1px solid var(--line-copper);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow-1);
}

.page-news .summary-card__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-500);
}

.page-news .summary-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.05rem;
  line-height: 1.35;
  color: var(--ink-900);
}

.page-news .summary-card__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--stone-500);
}

/* ---------- 图片 ---------- */
.page-news .news-figure,
.page-news .rhythm-figure,
.page-news .follow-figure,
.page-news .compare-figure {
  margin: 0 0 28px;
  border: 1px solid var(--line);
  background: var(--ink-900);
  overflow: hidden;
}

.page-news .compare-figure {
  margin: 22px 0 0;
  background: rgba(11, 27, 43, 0.35);
  border-color: rgba(247, 245, 241, 0.16);
}

.page-news .news-figure img,
.page-news .rhythm-figure img,
.page-news .follow-figure img,
.page-news .compare-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .media__caption {
  display: block;
  padding: 9px 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--stone-500);
  background: var(--paper-50);
  border-top: 1px solid var(--line);
}

.page-news .compare-figure .media__caption {
  background: transparent;
  border-top-color: rgba(247, 245, 241, 0.16);
  color: rgba(247, 245, 241, 0.68);
}

/* ---------- 条目列表 ---------- */
.page-news .entries {
  border-top: 1px solid var(--line-strong);
}

.page-news .entry {
  border-bottom: 1px solid var(--line);
}

.page-news .entry__summary {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 34px 18px 2px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .entry__summary::after {
  content: "＋";
  position: absolute;
  right: 6px;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1;
  color: var(--copper-500);
}

.page-news .entry[open] .entry__summary::after {
  content: "－";
}

.page-news .entry__when {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--stone-500);
}

.page-news .entry__title {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.97rem;
  line-height: 1.55;
  color: var(--ink-900);
}

.page-news .entry__summary:hover .entry__title {
  color: var(--ink-500);
}

.page-news .tag {
  justify-self: start;
  display: inline-block;
  padding: 2px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-900);
  background: transparent;
  white-space: nowrap;
}

.page-news .tag--cat-a { border-color: var(--line-copper); }
.page-news .tag--cat-b { border-color: rgba(44, 90, 128, 0.5); }
.page-news .tag--cat-c { border-color: rgba(16, 80, 74, 0.5); }
.page-news .tag--cat-d { border-color: var(--line-strong); }

.page-news .entry__more {
  margin: 0 0 20px 8px;
  padding: 0 0 0 16px;
  border-left: 1px solid var(--line-copper);
}

.page-news .entry__more p {
  margin: 0 0 10px;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-news .entry__link {
  display: inline-block;
  font-size: 0.84rem;
  color: var(--ink-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 90, 128, 0.4);
  padding-bottom: 1px;
}

.page-news .entry__link:hover {
  color: var(--ink-700);
  border-bottom-color: var(--line-copper);
}

/* ---------- 目录对照 ---------- */
.page-news .compare-panel {
  --line: rgba(247, 245, 241, 0.18);
  --line-strong: rgba(247, 245, 241, 0.3);
  background: var(--teal-700);
  color: var(--paper-50);
  padding: 26px 20px 24px;
  border: 1px solid rgba(247, 245, 241, 0.14);
}

.page-news .compare-panel__head {
  margin-bottom: 20px;
}

.page-news .compare-panel__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.1rem;
  color: var(--paper-50);
}

.page-news .compare-panel__hint {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: rgba(247, 245, 241, 0.76);
}

.page-news .diff-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid rgba(247, 245, 241, 0.2);
}

.page-news .diff-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.page-news .diff-table__caption {
  caption-side: top;
  text-align: left;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: rgba(247, 245, 241, 0.66);
  border-bottom: 1px solid rgba(247, 245, 241, 0.16);
}

.page-news .diff-table th {
  text-align: left;
  font-weight: 500;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--copper-200);
  padding: 11px 14px;
  border-bottom: 1px solid rgba(247, 245, 241, 0.24);
  white-space: nowrap;
}

.page-news .diff-table td {
  padding: 12px 14px;
  color: rgba(247, 245, 241, 0.88);
  border-bottom: 1px solid rgba(247, 245, 241, 0.12);
  vertical-align: middle;
}

.page-news .diff-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-news .diff-table .is-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--copper-200);
}

.page-news .compare-panel .tag {
  color: var(--paper-50);
  border-color: rgba(247, 245, 241, 0.36);
  margin-right: 6px;
}

.page-news .tag--change-new { border-color: var(--copper-200); }
.page-news .tag--change-merge { border-color: rgba(247, 245, 241, 0.5); }
.page-news .tag--change-move { border-color: rgba(224, 199, 154, 0.55); }

/* ---------- 更新节奏 ---------- */
.page-news .rhythm-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .rhythm-stat {
  background: var(--paper-50);
  padding: 18px 16px;
}

.page-news .rhythm-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--ink-700);
  margin-bottom: 6px;
}

.page-news .rhythm-stat__label {
  display: block;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--stone-500);
}

.page-news .rhythm-body p {
  margin: 0 0 14px;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--ink-700);
  max-width: 68ch;
}

.page-news .rhythm-body p:last-child {
  margin-bottom: 26px;
}

/* ---------- 跟上更新 ---------- */
.page-news .follow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 26px;
}

.page-news .follow-card {
  background: var(--paper-100);
  border: 1px solid var(--line);
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
}

.page-news .follow-card__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-500);
}

.page-news .follow-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--ink-900);
}

.page-news .follow-card__text {
  margin: 0 0 14px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--stone-500);
  flex: 1;
}

.page-news .follow-card__link {
  align-self: flex-start;
  display: inline-block;
  padding: 7px 14px;
  font-size: 0.82rem;
  color: var(--ink-700);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  text-decoration: none;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-news .follow-card__link:hover {
  border-color: var(--copper-500);
  color: var(--ink-900);
}

/* ---------- 往期专题 ---------- */
.page-news .archive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .archive-card {
  background: var(--paper-50);
  padding: 20px 18px 22px;
  display: flex;
  flex-direction: column;
}

.page-news .archive-card__num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--copper-500);
}

.page-news .archive-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.42;
  color: var(--ink-700);
}

.page-news .archive-card__text {
  margin: 0 0 16px;
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--stone-500);
  flex: 1;
}

.page-news .archive-card__link {
  align-self: flex-start;
  font-size: 0.82rem;
  color: var(--ink-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 90, 128, 0.4);
  padding-bottom: 1px;
}

.page-news .archive-card__link:hover {
  color: var(--ink-700);
  border-bottom-color: var(--line-copper);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-news {
    --news-time: 148px;
  }

  .page-news .news-hero__frame {
    padding: 42px 40px 0;
  }

  .page-news .ticks {
    margin: 0 -40px;
  }

  .page-news .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .rhythm-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .follow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .entry__summary {
    grid-template-columns: var(--news-time) minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 20px;
    padding: 20px 34px 20px 2px;
  }

  .page-news .entry__summary::after {
    top: 19px;
  }

  .page-news .entry__title {
    font-size: 1rem;
  }

  .page-news .tag {
    justify-self: end;
  }

  .page-news .entry__more {
    margin-left: calc(var(--news-time) + 20px);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-news {
    --news-rail: 248px;
  }

  .page-news .news-shell {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: 56px;
    padding-top: 56px;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    max-height: calc(100vh - var(--header-h) - 48px);
    overflow-y: auto;
  }

  .page-news .news-hero__title {
    max-width: 22ch;
  }

  .page-news .news-block + .news-block {
    margin-top: 88px;
  }

  .page-news .follow-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .archive-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .compare-panel {
    padding: 32px 32px 28px;
  }
}

@media (min-width: 1200px) {
  .page-news {
    --news-rail: 268px;
  }

  .page-news .news-hero__frame {
    padding: 52px 56px 0;
  }

  .page-news .ticks {
    margin: 0 -56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .toc__link::after,
  .page-news .follow-card__link {
    transition: none;
  }
}
<<<END>>>