.page-news {
  --news-hi: rgba(59, 240, 210, .045);
  --news-hi-warm: rgba(255, 138, 61, .05);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-news .breadcrumb {
  padding-top: clamp(20px, 3vw, 32px);
}

/* ---------- 栏目头部 ---------- */

.page-news .feed-head {
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: clamp(22px, 3.4vw, 38px);
}

.page-news .feed-head__title {
  margin: 16px 0 0;
  max-width: 21ch;
  font-size: clamp(29px, 5vw, 60px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-news .feed-head__lede {
  margin-top: clamp(16px, 2.4vw, 24px);
  max-width: 38em;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mute);
}

.page-news .feed-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 2.8vw, 28px);
}

/* ---------- 头部氛围图 ---------- */

.page-news .feed-pulse {
  margin: 0;
}

.page-news .feed-pulse img {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 7;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hair);
  border-radius: 2px;
}

/* ---------- 章节通用 ---------- */

.page-news .feed-section {
  padding-top: clamp(52px, 7.5vw, 92px);
}

.page-news .section-title {
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-news .feed-section__intro {
  margin: clamp(16px, 2.2vw, 22px) 0 0;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mute);
}

/* ---------- 三条线索索引 ---------- */

.page-news .feed-lines {
  list-style: none;
  margin: clamp(24px, 3.6vw, 40px) 0 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-news .feed-line {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "dot  name  count"
    "dot  desc  desc";
  align-items: center;
  column-gap: 14px;
  row-gap: 6px;
  padding: clamp(20px, 3vw, 26px) 10px;
  margin-inline: -10px;
  border-bottom: 1px solid var(--hair);
  text-decoration: none;
  color: inherit;
  transition: background-color 200ms var(--ease);
}

.page-news .feed-line:hover,
.page-news .feed-line:focus-visible {
  background-color: var(--news-hi);
}

.page-news .feed-line__dot {
  grid-area: dot;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  align-self: center;
}

.page-news .feed-line--cyan {
  color: var(--cyan);
}

.page-news .feed-line--orange {
  color: var(--orange);
}

.page-news .feed-line--mute {
  color: var(--mute);
}

.page-news .feed-line__name {
  grid-area: name;
  font-size: var(--fs-md);
  font-weight: 500;
  line-height: 1.4;
  color: var(--white);
}

.page-news .feed-line__desc {
  grid-area: desc;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mute);
}

.page-news .feed-line__count {
  grid-area: count;
  justify-self: end;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: .08em;
  color: var(--mute-dim);
  white-space: nowrap;
}

@media (min-width: 760px) {
  .page-news .feed-line {
    grid-template-columns: auto minmax(140px, 190px) minmax(0, 1fr) auto;
    grid-template-areas: "dot name desc count";
    column-gap: clamp(16px, 3vw, 32px);
    row-gap: 0;
  }
  .page-news .feed-line__desc {
    align-self: center;
  }
}

/* ---------- 条目列表 ---------- */

.page-news .feed-list {
  list-style: none;
  margin: clamp(26px, 3.8vw, 44px) 0 0;
  padding: 0;
  border-bottom: 1px solid var(--hair);
}

.page-news .feed-list--tight {
  margin-top: clamp(22px, 3vw, 32px);
}

.page-news .feed-entry {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num  when"
    "body body";
  column-gap: 14px;
  row-gap: 10px;
  padding: clamp(20px, 3.2vw, 30px) 12px;
  margin-inline: -12px;
  border-top: 1px solid var(--hair);
  transition: background-color 200ms var(--ease);
}

.page-news .feed-entry:hover,
.page-news .feed-entry:focus-within {
  background-color: var(--news-hi);
}

.page-news .feed-entry__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  letter-spacing: .08em;
  color: var(--cyan);
  transform-origin: left center;
  transition: transform 220ms var(--ease), color 220ms var(--ease);
}

.page-news .feed-entry:hover .feed-entry__num,
.page-news .feed-entry:focus-within .feed-entry__num {
  transform: scale(1.18);
  color: var(--white);
}

.page-news .feed-entry__when {
  grid-area: when;
  justify-self: end;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: .06em;
  color: var(--mute-dim);
  white-space: nowrap;
}

.page-news .feed-entry__body {
  grid-area: body;
  min-width: 0;
}

.page-news .feed-entry__title {
  margin: 0;
  font-size: clamp(17px, 1.3vw + 12px, 21px);
  font-weight: 500;
  line-height: 1.45;
  color: var(--white);
  transform-origin: left center;
  transition: transform 260ms var(--ease);
}

.page-news .feed-entry:hover .feed-entry__title,
.page-news .feed-entry:focus-within .feed-entry__title {
  transform: translateX(6px);
}

.page-news .feed-entry__text {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--mute);
}

@media (min-width: 860px) {
  .page-news .feed-entry {
    grid-template-columns: 84px minmax(0, 1fr) 108px;
    grid-template-areas: "num .page-news when";
    column-gap: clamp(20px, 3vw, 36px);
    row-gap: 0;
    align-items: start;
  }
  .page-news .feed-entry__when {
    justify-self: start;
    padding-top: 3px;
  }
}

/* ---------- 图文块 ---------- */

.page-news .feed-figure {
  margin: clamp(26px, 3.8vw, 40px) 0 0;
  max-width: 640px;
}

.page-news .feed-figure--wide {
  max-width: 860px;
}

.page-news .feed-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hair);
  border-radius: 2px;
}

.page-news .feed-figure__cap {
  margin-top: 12px;
  max-width: 46ch;
  font-size: var(--fs-label);
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--mute-dim);
}

/* ---------- 更新节奏 ---------- */

.page-news .feed-rhythm {
  display: grid;
  gap: clamp(24px, 3.4vw, 36px);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-news .feed-rhythm__text p {
  margin: 0 0 16px;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mute);
}

.page-news .feed-rhythm__text p:last-child {
  margin-bottom: 0;
}

.page-news .feed-status {
  align-self: start;
}

@media (min-width: 900px) {
  .page-news .feed-rhythm {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

/* ---------- 收尾动作 ---------- */

.page-news .feed-follow {
  margin-top: clamp(22px, 3vw, 32px);
}

.page-news .feed-follow p {
  margin: 0;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mute);
}

.page-news .feed-follow__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.8vw, 28px);
}

.page-news .feed-follow__actions .btn {
  min-height: 46px;
}

/* ---------- 页尾材质图 ---------- */

.page-news .feed-tail {
  margin: clamp(56px, 8vw, 96px) 0 0;
}

.page-news .feed-tail img {
  display: block;
  width: 100%;
  aspect-ratio: 12 / 5;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hair);
  border-radius: 2px;
}

@media (max-width: 560px) {
  .page-news .feed-pulse img,
  .page-news .feed-tail img {
    aspect-ratio: 3 / 2;
  }
  .page-news .feed-follow__actions .btn {
    flex: 1 1 100%;
    justify-content: center;
  }
}
<<<END>>>