.page-news {
  --news-border: 2px solid var(--ink-950);
  --news-shadow: 6px 6px 0 var(--ink-950);
  --track-ios: var(--teal);
  --track-pc: var(--orange);
  background: var(--sand);
  color: var(--slate);
  overflow-x: clip;
}

.page-news .shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-news a {
  color: inherit;
}

.page-news a:focus-visible,
.page-news button:focus-visible,
.page-news summary:focus-visible {
  outline: 3px solid var(--orange-bright);
  outline-offset: 3px;
}

/* 首屏 */
.page-news .news-hero {
  position: relative;
  padding: calc(var(--header-h) + 28px) 0 52px;
  background:
    radial-gradient(circle at 88% 8%, rgba(12, 124, 124, 0.28), transparent 42%),
    linear-gradient(135deg, var(--ink-950) 0%, var(--ink-800) 68%, var(--ink-600) 100%);
  color: var(--white);
  border-bottom: 2px solid var(--ink-950);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 10px;
  background: repeating-linear-gradient(
    90deg,
    var(--orange) 0 28px,
    var(--teal) 28px 56px,
    transparent 56px 84px
  );
  opacity: 0.9;
}

.page-news .breadcrumb {
  margin-bottom: 26px;
}

.page-news .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-label);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-news .breadcrumb__list li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--teal);
}

.page-news .breadcrumb__list a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
}

.page-news .news-hero__grid {
  display: grid;
  gap: 32px;
}

.page-news .news-hero__copy {
  min-width: 0;
}

.page-news .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-bright);
}

.page-news .news-hero h1 {
  max-width: 15ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 7vw, 4.4rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-news .news-hero__lead {
  max-width: 54ch;
  margin: 22px 0 0;
  font-size: clamp(1rem, 1.7vw, 1.12rem);
  line-height: 1.75;
  color: var(--sand);
}

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

.page-news .news-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 34px;
  margin: 30px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
}

.page-news .stat {
  min-width: 96px;
}

.page-news .stat dt {
  font-family: var(--font-label);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .stat dd {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--white);
}

.page-news .news-hero__media {
  margin: 0;
  border: 2px solid var(--white);
  box-shadow: 8px 8px 0 var(--orange);
  background: var(--ink-800);
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* 左侧章节轴 + 右侧内容 */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-news .index-axis {
  display: none;
}

.page-news .news-main {
  min-width: 0;
  padding: 8px 0 64px;
}

.page-news .news-section {
  padding: clamp(38px, 5vw, 64px) 0;
  border-bottom: 2px solid var(--sand-deep);
}

.page-news .news-section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .news-section__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
}

.page-news .index-num {
  flex: 0 0 auto;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-news .news-section__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-news .news-section__intro {
  max-width: 62ch;
  margin: 0 0 24px;
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .prose p {
  max-width: 68ch;
  margin: 0 0 14px;
  font-size: 0.98rem;
  line-height: 1.78;
}

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

/* 四字段 */
.page-news .field-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-news .field-item {
  position: relative;
  padding: 18px 18px 18px 22px;
  background: var(--white);
  border: var(--news-border);
  box-shadow: 4px 4px 0 var(--sand-deep);
}

.page-news .field-item__num {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--teal);
}

.page-news .field-item__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 800;
  color: var(--ink-950);
}

.page-news .field-item__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
}

/* 时间轴轨道 */
.page-news .track-figure {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-news .track-figure__media {
  margin: 0;
  border: var(--news-border);
  box-shadow: 6px 6px 0 var(--ink-950);
  background: var(--sand-deep);
}

.page-news .track-figure__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

.page-news .timeline {
  position: relative;
  padding-left: 34px;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 11px;
  width: 3px;
  border-radius: 2px;
  background: var(--track-ios);
}

.page-news .timeline--pc::before {
  background: var(--track-pc);
}

.page-news .timeline__item {
  position: relative;
  padding-bottom: 26px;
}

.page-news .timeline__item:last-child {
  padding-bottom: 0;
}

.page-news .timeline__item::before {
  content: "";
  position: absolute;
  top: 5px;
  left: -29px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--track-ios);
  border: 3px solid var(--sand);
  box-shadow: 0 0 0 2px var(--track-ios);
}

.page-news .timeline--pc .timeline__item::before {
  background: var(--track-pc);
  box-shadow: 0 0 0 2px var(--track-pc);
}

.page-news .log-entry {
  padding: 16px 16px 18px;
  background: var(--white);
  border: var(--news-border);
  box-shadow: 4px 4px 0 var(--sand-deep);
}

.page-news .log-entry__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 10px;
}

.page-news .log-entry__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink-950);
}

.page-news .log-entry__text {
  margin: 0 0 12px;
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-news .log-entry__link {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
}

.page-news .log-entry__link:hover {
  color: var(--ink-950);
  border-bottom-color: var(--ink-950);
}

/* 标签 */
.page-news .tag--ios {
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--radius);
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-news .tag--pc {
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--radius);
  background: var(--orange);
  color: var(--white);
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-news .tag--batch {
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--radius);
  background: var(--ink-950);
  color: var(--white);
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-news .tag--sand {
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--radius);
  background: var(--sand-deep);
  color: var(--ink-950);
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-news .tag--teal {
  display: inline-block;
  padding: 4px 9px;
  border-radius: var(--radius);
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-news .tag--orange {
  display: inline-block;
  padding: 4px 9px;
  border-radius: var(--radius);
  background: var(--orange);
  color: var(--white);
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* 近期更新与筛选 */
.page-news .notes-media {
  margin: 22px 0 0;
  border: var(--news-border);
  box-shadow: 6px 6px 0 var(--ink-950);
  overflow: hidden;
}

.page-news .notes-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .news-filter {
  position: sticky;
  top: var(--header-h);
  z-index: 4;
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  margin: 26px -4px 22px;
  padding: 12px 4px;
  overflow-x: auto;
  background: var(--sand);
  border-top: 2px solid var(--ink-950);
  border-bottom: 2px solid var(--ink-950);
  -webkit-overflow-scrolling: touch;
}

.page-news .filter-btn {
  flex: 0 0 auto;
  padding: 8px 12px;
  border: 2px solid var(--ink-950);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink-950);
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), transform var(--ease);
}

.page-news .filter-btn:hover {
  transform: translateY(-2px);
}

.page-news .filter-btn.is-active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
}

.page-news .notes-grid {
  display: grid;
  gap: 18px;
  align-items: start;
}

.page-news .note-card {
  background: var(--white);
  border: var(--news-border);
  box-shadow: 4px 4px 0 var(--ink-950);
  transition: box-shadow var(--ease), transform var(--ease);
}

.page-news .note-card[open] {
  box-shadow: 8px 8px 0 var(--orange);
}

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

.page-news .note-card summary {
  position: relative;
  display: block;
  padding: 18px 42px 18px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .note-card summary::after {
  content: "+";
  position: absolute;
  top: 16px;
  right: 16px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 2px solid var(--ink-950);
  border-radius: 50%;
  font-family: var(--font-label);
  font-size: 0.85rem;
  line-height: 1;
  color: var(--ink-950);
}

.page-news .note-card[open] summary::after {
  content: "−";
  background: var(--ink-950);
  color: var(--white);
}

.page-news .note-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.page-news .note-card__title {
  display: block;
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.38;
  color: var(--ink-950);
}

.page-news .note-card__hint {
  display: block;
  font-family: var(--font-label);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--teal);
}

.page-news .note-card__body {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--sand-deep);
  background: var(--sand);
}

.page-news .note-card__body p {
  margin: 0 0 10px;
  font-size: 0.9rem;
  line-height: 1.72;
}

.page-news .note-card__body p:last-child {
  margin-bottom: 0;
}

.page-news .note-card__path {
  font-family: var(--font-label);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--ink-800);
}

.page-news .note-card__path a {
  color: var(--orange);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
}

/* 更新节奏 */
.page-news .cadence-grid {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.page-news .cadence-item {
  padding-top: 14px;
  border-top: 4px solid var(--ink-950);
}

.page-news .cadence-num {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 900;
  line-height: 1;
  color: var(--ink-950);
}

.page-news .cadence-label {
  margin: 8px 0 0;
  font-family: var(--font-label);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-news .cadence-note {
  margin: 24px 0 0;
  padding: 14px 16px;
  border-left: 6px solid var(--teal);
  background: var(--sand-deep);
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ink-950);
}

/* 问答与反馈 */
.page-news .reach-grid {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.page-news .reach-card {
  padding: 22px;
  background: var(--white);
  border: var(--news-border);
  box-shadow: var(--news-shadow);
}

.page-news .reach-card--accent {
  background: var(--ink-950);
  color: var(--white);
}

.page-news .reach-card__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  font-weight: 900;
  line-height: 1.3;
  color: var(--ink-950);
}

.page-news .reach-card--accent .reach-card__title {
  color: var(--white);
}

.page-news .reach-card__text {
  margin: 0 0 16px;
  font-size: 0.92rem;
  line-height: 1.72;
}

.page-news .reach-card__contact {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  font-family: var(--font-label);
  font-size: 0.76rem;
  line-height: 1.9;
  color: var(--sand);
  word-break: break-word;
}

.page-news .reach-card__contact span {
  display: inline-block;
  min-width: 42px;
  color: var(--teal);
}

.page-news .reach-card--accent .btn--action {
  margin-top: 2px;
}

.page-news .reach-links {
  margin: 22px 0 0;
  font-family: var(--font-label);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--ink-800);
}

.page-news .reach-links a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

@media (min-width: 720px) {
  .page-news .news-hero {
    padding-top: calc(var(--header-h) + 40px);
    padding-bottom: 66px;
  }

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

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

  .page-news .notes-grid > :nth-child(3n + 2) {
    margin-top: 22px;
  }

  .page-news .cadence-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 26px;
  }

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

  .page-news .news-filter {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 44px;
    align-items: center;
  }

  .page-news .track-figure {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 30px;
  }

  .page-news .track-figure--reverse {
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  }

  .page-news .track-figure--reverse .track-figure__media {
    order: -1;
  }

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

@media (min-width: 1040px) {
  .page-news .news-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .index-axis {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: 28px 18px 28px 0;
    border-right: 2px solid var(--sand-deep);
  }

  .page-news .index-axis__label {
    margin: 0 0 12px;
    font-family: var(--font-label);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-600);
  }

  .page-news .axis-link {
    display: block;
    padding: 11px 0 11px 12px;
    border-left: 3px solid transparent;
    border-bottom: 1px solid var(--sand-deep);
    font-family: var(--font-label);
    font-size: 0.74rem;
    letter-spacing: 0.03em;
    color: var(--ink-800);
    text-decoration: none;
    transition: color var(--ease), border-color var(--ease), padding var(--ease);
  }

  .page-news .axis-link:hover {
    color: var(--orange);
  }

  .page-news .axis-link.is-current {
    padding-left: 16px;
    border-left-color: var(--orange);
    color: var(--orange);
    font-weight: 600;
  }

  .page-news .news-main {
    padding-top: 24px;
  }

  .page-news .notes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .notes-grid > :nth-child(3n + 2) {
    margin-top: 26px;
  }

  .page-news .notes-grid > :nth-child(3n + 3) {
    margin-top: 12px;
  }

  .page-news .notes-media img {
    max-height: 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter-btn,
  .page-news .note-card,
  .page-news .axis-link {
    transition: none;
  }

  .page-news .filter-btn:hover {
    transform: none;
  }
}
</PAGE_CSS>