.page-news {
  --n-radius: var(--radius);
  --n-sticky-top: 0px;
  color: var(--text);
}

.page-news .news-hero {
  position: relative;
  padding: clamp(20px, 5vw, 42px) 0 clamp(30px, 6vw, 58px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(115% 85% at 94% -6%, rgba(230, 180, 92, 0.15), transparent 62%),
    radial-gradient(95% 80% at -4% 24%, rgba(99, 199, 155, 0.12), transparent 64%);
}

.page-news .news-hero .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-news .hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-news .hero-copy h1 {
  margin: 0.35em 0 0.5em;
  font-size: clamp(1.85rem, 5.6vw, 3.1rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
  font-weight: 700;
}

.page-news .hero-copy .lede {
  max-width: 54ch;
  font-size: clamp(1rem, 2.1vw, 1.08rem);
  line-height: 1.85;
  color: var(--muted);
}

.page-news .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .hero-note {
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-news .hero-focus {
  display: grid;
  gap: 14px;
}

.page-news .focus-card {
  position: relative;
  padding: 18px 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--n-radius);
  background:
    linear-gradient(180deg, rgba(23, 42, 69, 0.95), rgba(7, 17, 31, 0.98));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-news .focus-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--gold);
}

.page-news .focus-card:nth-child(2)::before {
  background: var(--clay);
}

.page-news .focus-card__num {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-news .focus-card:nth-child(2) .focus-card__num {
  color: var(--clay);
}

.page-news .focus-card h2 {
  font-size: 1.06rem;
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}

.page-news .focus-card p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .focus-card__link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(99, 199, 155, 0.42);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .focus-card__link:hover,
.page-news .focus-card__link:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold);
}

.page-news .hero-visual {
  margin-top: clamp(26px, 4vw, 42px);
}

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

.page-news .media-frame__note {
  display: block;
  margin-top: 10px;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .news-section {
  padding-block: clamp(38px, 7vw, 74px);
}

.page-news .news-section--alt {
  background:
    linear-gradient(180deg, rgba(13, 26, 46, 0.72), rgba(7, 17, 31, 0));
  border-block: 1px solid var(--line);
}

.page-news .section-head h2 {
  margin: 0.3em 0 0.55em;
  font-size: clamp(1.42rem, 3.5vw, 2.1rem);
  line-height: 1.28;
  letter-spacing: -0.012em;
}

.page-news .section-head .lede {
  max-width: 62ch;
  color: var(--muted);
  line-height: 1.85;
  font-size: clamp(0.98rem, 2vw, 1.04rem);
}

/* 版本迭代观察 */
.page-news .iter-grid {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  margin-top: clamp(24px, 4vw, 36px);
}

.page-news .iter-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-news .iter-list .iter-item:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-news .iter-item__num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-top: 3px;
}

.page-news .iter-item h3 {
  margin: 0 0 8px;
  font-size: 1.04rem;
  line-height: 1.5;
}

.page-news .iter-item p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .iter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.page-news .iter-more {
  margin-top: 20px;
}

.page-news .iter-side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-news .path-card {
  padding: 16px 18px 18px;
  border: 1px solid var(--line);
  border-radius: var(--n-radius);
  background: rgba(23, 42, 69, 0.55);
}

.page-news .path-card__label {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
}

.page-news .path-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .path-svg__old {
  stroke: var(--clay);
  opacity: 0.85;
}

.page-news .path-svg__new {
  stroke: var(--gold);
}

.page-news .path-svg__node {
  fill: var(--clay);
}

.page-news .path-svg__end {
  fill: var(--celadon);
}

.page-news .path-card__note {
  margin: 10px 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 浏览器与栏目笔记 */
.page-news .notes-grid {
  display: grid;
  gap: clamp(24px, 4vw, 38px);
  margin-top: clamp(24px, 4vw, 34px);
  align-items: start;
}

.page-news .notes-list {
  display: grid;
  gap: 18px;
}

.page-news .note-item {
  padding: 16px 18px;
  border-left: 2px solid var(--line-strong);
  background: linear-gradient(90deg, rgba(23, 42, 69, 0.55), transparent 92%);
  border-radius: 0 var(--n-radius) var(--n-radius) 0;
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-news .note-item:hover {
  border-left-color: var(--celadon);
}

.page-news .note-item h3 {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 1rem;
  line-height: 1.55;
}

.page-news .note-item__dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 0.55em;
  border-radius: 50%;
  background: var(--celadon);
  box-shadow: 0 0 0 3px rgba(99, 199, 155, 0.18);
}

.page-news .note-item p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .note-item__link {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(230, 180, 92, 0.4);
  padding-bottom: 2px;
}

.page-news .note-item__link:hover,
.page-news .note-item__link:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold-soft);
}

/* 专题系列 */
.page-news .series-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(24px, 4vw, 34px);
  align-items: start;
}

.page-news .series-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-news .series-tabs .tabs__btn {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--n-radius);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-news .series-tabs .tabs__btn:hover {
  color: var(--text);
  border-color: var(--line-strong);
}

.page-news .series-tabs .tabs__btn[aria-selected="true"] {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-news .series-tabs .tabs__btn:focus-visible {
  outline: 2px solid var(--celadon);
  outline-offset: 2px;
}

.page-news .series-panel {
  padding-top: 20px;
}

.page-news .series-panel h3 {
  margin: 0 0 12px;
  font-size: 1.16rem;
  line-height: 1.45;
  color: var(--text);
}

.page-news .series-panel p {
  margin: 0 0 12px;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--muted);
  max-width: 60ch;
}

.page-news .series-panel .btn {
  margin-top: 6px;
}

.page-news .series-visual {
  border: 1px solid var(--line);
  border-radius: var(--n-radius);
  padding: 10px;
  background: rgba(13, 26, 46, 0.6);
}

/* 近期更新列表 */
.page-news .news-section--updates {
  background:
    radial-gradient(90% 60% at 100% 0%, rgba(217, 130, 76, 0.12), transparent 60%);
  border-top: 1px solid var(--line);
}

.page-news .upd-bar {
  position: sticky;
  top: var(--n-sticky-top);
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: clamp(22px, 3.5vw, 32px);
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--n-radius);
  background: rgba(7, 17, 31, 0.94);
  backdrop-filter: blur(8px);
}

.page-news .upd-bar__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-news .upd-bar__link {
  font-size: 0.86rem;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: var(--n-radius);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .upd-bar__link:hover,
.page-news .upd-bar__link:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold);
}

.page-news .upd-bar__note {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--celadon);
}

.page-news .upd-group {
  margin-top: clamp(28px, 4.5vw, 44px);
  scroll-margin-top: 96px;
}

.page-news .upd-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 6px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line-strong);
  font-size: 1.06rem;
  letter-spacing: -0.005em;
}

.page-news .upd-group__title .mono {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

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

.page-news .upd-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 16px 10px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-news .upd-row:hover,
.page-news .upd-row:focus-within {
  background: rgba(23, 42, 69, 0.5);
  transform: translateX(4px);
}

.page-news .upd-num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
  padding-top: 3px;
}

.page-news .upd-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.page-news .upd-time {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--celadon);
}

.page-news .upd-body h4 {
  margin: 0 0 6px;
  font-size: 1rem;
  line-height: 1.55;
  font-weight: 600;
}

.page-news .upd-body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--muted);
  max-width: 66ch;
  transition: color 0.2s var(--ease);
}

.page-news .upd-row:hover .upd-body p {
  color: var(--text);
}

.page-news .upd-cta {
  display: grid;
  gap: 16px;
  margin-top: clamp(30px, 5vw, 48px);
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--n-radius);
  background: linear-gradient(120deg, rgba(23, 42, 69, 0.85), rgba(7, 17, 31, 0.9));
}

.page-news .upd-cta p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 58ch;
}

.page-news .upd-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 640px) {
  .page-news .focus-card {
    padding: 20px 22px 20px 24px;
  }

  .page-news .upd-cta {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-news {
    --n-sticky-top: 8px;
  }

  .page-news .hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }

  .page-news .iter-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-news .notes-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-news .series-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }

  .page-news .upd-row {
    grid-template-columns: 56px 1fr;
    gap: 20px;
    padding: 18px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .upd-row,
  .page-news .note-item,
  .page-news .focus-card__link,
  .page-news .upd-body p {
    transition: none;
  }

  .page-news .upd-row:hover,
  .page-news .upd-row:focus-within {
    transform: none;
  }
}
<<<END>>>