.page-news {
  --news-hair: 1px solid rgba(127, 227, 232, 0.2);
  --news-rule: 1px solid rgba(44, 79, 107, 0.75);
  --news-gutter: clamp(18px, 4vw, 56px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-top: 10px;
}

.page-news .news-hero__frame {
  position: relative;
  overflow: hidden;
  border: var(--news-hair);
  padding: clamp(26px, 5vw, 60px) clamp(20px, 4vw, 56px) clamp(30px, 5vw, 64px);
  background:
    linear-gradient(102deg, transparent 47.6%, rgba(127, 227, 232, 0.07) 47.8%, transparent 48.4%),
    linear-gradient(158deg, rgba(18, 58, 87, 0.62), rgba(6, 24, 38, 0) 68%);
}

.page-news .news-hero__frame::before,
.page-news .news-hero__frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid rgba(127, 227, 232, 0.55);
  pointer-events: none;
}

.page-news .news-hero__frame::before {
  left: 0;
  top: 0;
  border-right: 0;
  border-bottom: 0;
}

.page-news .news-hero__frame::after {
  right: 0;
  bottom: 0;
  border-left: 0;
  border-top: 0;
}

.page-news .news-hero__title {
  margin: 14px 0 0;
  max-width: 18ch;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-news .news-hero__lead {
  margin: 20px 0 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: var(--fs-6);
  line-height: 1.85;
}

.page-news .news-hero__meta {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: var(--news-rule);
  max-width: 640px;
}

.page-news .news-hero__meta > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.page-news .news-hero__meta dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-news .news-hero__meta dd {
  margin: 0;
  color: var(--signal);
  font-size: var(--fs-7);
}

.page-news .news-hero__trail {
  display: none;
  width: 300px;
  height: 120px;
}

/* ---------- 本期焦点 ---------- */
.page-news .focus {
  position: relative;
  overflow: hidden;
  background: var(--mist);
  color: var(--deep);
  border: 1px solid rgba(127, 227, 232, 0.28);
  display: grid;
  gap: 0;
}

.page-news .focus__num {
  position: absolute;
  top: -10px;
  right: 12px;
  font-size: clamp(88px, 15vw, 168px);
  line-height: 1;
  font-weight: 500;
  color: rgba(11, 35, 56, 0.075);
  letter-spacing: -0.04em;
  pointer-events: none;
}

.page-news .focus__body {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 4vw, 52px) clamp(20px, 3.6vw, 48px) clamp(28px, 4vw, 48px);
}

.page-news .focus__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--signal-dark);
}

.page-news .focus__lead {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: var(--fs-5);
  line-height: 1.8;
  color: #16334a;
}

.page-news .focus__points {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-news .focus__points li {
  position: relative;
  padding-left: 42px;
  font-size: var(--fs-6);
  line-height: 1.75;
  color: #24435c;
}

.page-news .focus__pt-num {
  position: absolute;
  left: 0;
  top: 2px;
  font-size: 12px;
  color: var(--signal-dark);
  letter-spacing: 0.06em;
}

.page-news .focus__details {
  margin-top: 26px;
  border-top: 1px solid rgba(44, 79, 107, 0.28);
  padding-top: 14px;
}

.page-news .focus__details summary {
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-6);
  font-weight: 500;
  color: #0b2338;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.page-news .focus__details summary::before {
  content: "+";
  font-family: var(--font-mono);
  color: var(--signal-dark);
  font-size: 15px;
  line-height: 1;
}

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

.page-news .focus__details-body {
  margin-top: 14px;
  color: #2b4a63;
  font-size: 15px;
  line-height: 1.85;
}

.page-news .focus__details-body p {
  margin: 0 0 12px;
}

.page-news .focus__details-body p:last-child {
  margin-bottom: 0;
}

.page-news .focus__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .focus__actions .btn--ghost {
  color: #0b2338;
  border-color: rgba(11, 35, 56, 0.35);
}

.page-news .focus__media {
  position: relative;
  min-height: 200px;
  background: var(--deep);
}

.page-news .focus__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(6, 24, 38, 0.82), rgba(6, 24, 38, 0.18) 70%);
}

.page-news .focus__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
}

/* ---------- 列表区 ---------- */
.page-news .news-board {
  display: grid;
  gap: 28px;
}

.page-news .rail__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-news .rail__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .rail__hint {
  margin: 14px 0 0;
  font-size: var(--fs-7);
  line-height: 1.7;
  color: var(--muted);
}

.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px dashed rgba(44, 79, 107, 0.9);
}

.page-news .entry {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 18px 0 18px 22px;
  border-bottom: var(--news-rule);
  transition: transform 180ms var(--ease);
}

.page-news .entry::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: rgba(127, 227, 232, 0.18);
  transition: background 180ms var(--ease);
}

.page-news .entry::after {
  content: "";
  position: absolute;
  left: -4px;
  top: 26px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--steel);
  transition: background 180ms var(--ease);
}

.page-news .entry[data-cat="rank"]::before {
  background: rgba(127, 227, 232, 0.55);
}

.page-news .entry[data-cat="version"]::before {
  background: rgba(127, 227, 232, 0.36);
}

.page-news .entry[data-cat="network"]::before {
  background: rgba(127, 227, 232, 0.2);
}

.page-news .entry[data-cat="library"]::before {
  background: rgba(240, 138, 60, 0.4);
}

.page-news .entry:focus-within::after {
  background: var(--signal);
}

.page-news .entry__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-news .entry__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  padding: 3px 8px;
  border: 1px solid rgba(127, 227, 232, 0.55);
  color: var(--signal);
  white-space: nowrap;
}

.page-news .entry[data-cat="version"] .entry__tag {
  border-color: rgba(127, 227, 232, 0.36);
  color: #a9ecef;
}

.page-news .entry[data-cat="network"] .entry__tag {
  border-color: rgba(127, 227, 232, 0.22);
  color: #8fc9cd;
}

.page-news .entry[data-cat="library"] .entry__tag {
  border-color: rgba(240, 138, 60, 0.5);
  color: var(--flare);
}

.page-news .entry__time {
  font-size: var(--fs-7);
  color: var(--muted);
}

.page-news .entry__title {
  margin: 0;
  font-size: var(--fs-5);
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: 0.01em;
}

.page-news .entry__title a {
  color: var(--text);
  text-decoration: none;
  transition: color 160ms var(--ease);
}

.page-news .entry__title a:focus-visible {
  outline: 1px solid var(--signal);
  outline-offset: 3px;
}

.page-news .entry__brief {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  max-height: 6em;
  opacity: 1;
  overflow: hidden;
  transition: max-height 200ms var(--ease), opacity 200ms var(--ease);
}

.page-news .entry[hidden] {
  display: none;
}

/* ---------- 版本更新记录 ---------- */
.page-news .records {
  display: grid;
  gap: 28px;
}

.page-news .records__lead {
  margin: 0 0 22px;
  max-width: 60ch;
  color: var(--muted);
  font-size: var(--fs-6);
  line-height: 1.85;
}

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

.page-news .record {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-top: var(--news-rule);
}

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

.page-news .record__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.page-news .record__ver {
  font-size: var(--fs-4);
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-news .record--screen .record__ver {
  color: var(--signal);
}

.page-news .record--screen .record__scope::after {
  content: "大屏影响";
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--flare);
  border: 1px solid rgba(240, 138, 60, 0.5);
  padding: 2px 6px;
  vertical-align: middle;
}

.page-news .record__scope {
  font-size: var(--fs-7);
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-news .record__text {
  margin: 0;
  max-width: 62ch;
  color: #c9d7e0;
  font-size: 15px;
  line-height: 1.8;
}

.page-news .records__note {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid rgba(127, 227, 232, 0.45);
  color: var(--muted);
  font-size: var(--fs-7);
  line-height: 1.8;
}

.page-news .records__media img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--news-hair);
  filter: saturate(0.85);
}

.page-news .records__caption {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: var(--fs-7);
  line-height: 1.7;
}

/* ---------- 两条进展线 ---------- */
.page-news .tracks {
  align-items: start;
}

.page-news .track {
  border: var(--news-hair);
  background: linear-gradient(170deg, rgba(18, 58, 87, 0.5), rgba(11, 35, 56, 0.3));
  padding: 0 0 24px;
  display: grid;
  align-content: start;
}

.page-news .track__media {
  overflow: hidden;
}

.page-news .track__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .track__title {
  margin: 20px clamp(18px, 3vw, 28px) 0;
  font-size: var(--fs-4);
  font-weight: 500;
  line-height: 1.5;
  color: var(--text);
}

.page-news .track__text {
  margin: 12px clamp(18px, 3vw, 28px) 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.page-news .track__list {
  list-style: none;
  margin: 16px clamp(18px, 3vw, 28px) 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .track__list li {
  position: relative;
  padding-left: 16px;
  color: #c9d7e0;
  font-size: 14px;
  line-height: 1.75;
}

.page-news .track__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--signal);
}

.page-news .track__link {
  margin: 18px clamp(18px, 3vw, 28px) 0;
  align-self: end;
  display: inline-block;
  color: var(--signal);
  font-size: var(--fs-7);
  letter-spacing: 0.06em;
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 227, 232, 0.45);
  padding-bottom: 3px;
}

/* ---------- 归档 ---------- */
.page-news .archive {
  display: grid;
  gap: 26px;
}

.page-news .archive__lead {
  margin: 0;
  max-width: 58ch;
  color: var(--text);
  font-size: var(--fs-5);
  line-height: 1.8;
}

.page-news .archive__note {
  margin: 14px 0 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: var(--fs-7);
  line-height: 1.8;
}

.page-news .archive__panel {
  background: rgba(11, 35, 56, 0.6);
  border: var(--news-hair);
  padding: clamp(18px, 3vw, 28px);
}

.page-news .archive__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: var(--news-rule);
}

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

.page-news .arc {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(44, 79, 107, 0.85);
}

.page-news .arc[hidden] {
  display: none;
}

.page-news .arc__tag {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--signal);
  border: 1px solid rgba(127, 227, 232, 0.35);
  padding: 2px 7px;
  white-space: nowrap;
}

.page-news .arc__name {
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}

.page-news .arc__time {
  grid-column: 2;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-news .archive__foot {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: var(--fs-7);
  line-height: 1.8;
}

/* ---------- 阅读建议 ---------- */
.page-news .news-end {
  border-top: var(--news-hair);
}

.page-news .news-end__lead {
  margin: 0 0 26px;
  max-width: 60ch;
  color: var(--muted);
  font-size: var(--fs-6);
  line-height: 1.85;
}

.page-news .news-end__grid {
  align-items: stretch;
}

.page-news .starter {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 22px 20px 24px;
  border-left: 2px solid rgba(127, 227, 232, 0.35);
  background: linear-gradient(120deg, rgba(18, 58, 87, 0.45), rgba(6, 24, 38, 0) 78%);
}

.page-news .starter__who {
  margin: 0;
  font-size: var(--fs-5);
  font-weight: 500;
  line-height: 1.5;
  color: var(--text);
}

.page-news .starter__text {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-news .starter__link {
  margin-top: 4px;
  color: var(--signal);
  font-size: var(--fs-7);
  letter-spacing: 0.06em;
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 227, 232, 0.45);
  padding-bottom: 3px;
  justify-self: start;
}

.page-news .news-end__strip {
  margin-top: 32px;
  padding-top: 24px;
  border-top: var(--news-rule);
  display: grid;
  gap: 18px;
}

.page-news .news-end__strip-text {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: var(--fs-7);
  line-height: 1.85;
}

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

/* ---------- 悬停与焦点 ---------- */
@media (hover: hover) and (min-width: 900px) {
  .page-news .entry__brief {
    max-height: 0;
    opacity: 0;
  }

  .page-news .entry:hover,
  .page-news .entry:focus-within {
    transform: translateX(8px);
  }

  .page-news .entry:hover::before,
  .page-news .entry:focus-within::before {
    background: var(--signal);
  }

  .page-news .entry:hover::after,
  .page-news .entry:focus-within::after {
    background: var(--signal);
  }

  .page-news .entry:hover .entry__brief,
  .page-news .entry:focus-within .entry__brief {
    max-height: 6em;
    opacity: 1;
  }

  .page-news .entry:hover .entry__title a,
  .page-news .entry:focus-within .entry__title a {
    color: var(--signal);
  }

  .page-news .track__link:hover,
  .page-news .starter__link:hover {
    color: var(--flare);
    border-bottom-color: rgba(240, 138, 60, 0.6);
  }
}

/* ---------- 中等屏 ---------- */
@media (min-width: 720px) {
  .page-news .news-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-news .news-hero__meta > div {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-news .news-hero__trail {
    display: block;
    position: absolute;
    right: 0;
    bottom: 0;
    opacity: 0.9;
  }

  .page-news .news-end__strip {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 28px;
  }

  .page-news .news-end__strip .btn {
    justify-self: end;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-news .focus {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

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

  .page-news .news-board {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 44px;
  }

  .page-news .news-board__rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    padding-right: 8px;
  }

  .page-news .rail__filters {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
  }

  .page-news .rail__filters .chip {
    text-align: left;
  }

  .page-news .records {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-news .records__media {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-news .archive {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 48px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .entry__brief,
  .page-news .entry::before,
  .page-news .entry::after,
  .page-news .entry__title a {
    transition: opacity 120ms linear;
    transform: none !important;
  }
}
<<<END>>>