.page-news {
  --news-slant: var(--space-6);
  --news-hero-top: calc(var(--section-y-lg) + var(--space-4));
  --news-hero-bottom: calc(var(--section-y) + var(--space-4));
  display: block;
}

.page-news .news-theme,
.page-news .news-feed__list {
  scroll-margin-top: var(--space-8);
}

/* ============ 首屏：杂志封面式索引 ============ */

.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: var(--news-hero-top) var(--news-hero-bottom);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--news-slant)), 0 100%);
}

.page-news .news-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .news-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.42;
  filter: saturate(0.72) contrast(1.06);
}

.page-news .news-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
}

.page-news .news-hero .crumbs {
  color: var(--color-contrast-ink);
}

.page-news .news-hero .crumbs a {
  color: var(--color-contrast-accent);
}

.page-news .news-hero__eyebrow {
  margin-top: var(--space-6);
  color: var(--color-contrast-accent);
}

.page-news .news-hero__title {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-news .news-hero__title-main {
  display: block;
  font-size: var(--text-display);
  line-height: 0.88;
  letter-spacing: -0.03em;
  color: var(--color-contrast-ink);
}

.page-news .news-hero__title-main::after {
  content: "";
  display: block;
  width: var(--space-8);
  height: var(--space-1);
  margin-top: var(--space-3);
  background: var(--color-primary);
}

.page-news .news-hero__title-sub {
  display: block;
  margin-top: var(--space-4);
  max-width: 30ch;
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.42;
  color: var(--color-contrast-ink);
}

.page-news .news-hero__lede {
  margin: var(--space-3) 0 0;
  max-width: 52ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-news .news-hero__figures {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-3) var(--space-6);
  margin: var(--space-6) 0 0;
  padding: var(--space-3) 0 0;
  border-top: 1px solid var(--color-contrast-line);
  list-style: none;
}

.page-news .news-hero__figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-news .news-hero__figure-num {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: color-mix(in srgb, var(--color-primary) 42%, var(--color-primary-ink));
}

.page-news .news-hero__figure-label {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-news .news-hero__index {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-hero__chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--color-contrast-line);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-contrast-surface) 68%, transparent);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  transition: transform 140ms ease, border-color 140ms ease, color 140ms ease;
}

.page-news .news-hero__chip-idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-contrast-accent);
}

.page-news .news-hero__chip:hover,
.page-news .news-hero__chip:focus-visible {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ============ 主题区块 ============ */

.page-news .news-themes {
  background: var(--color-surface);
  padding-block: var(--section-y-lg) 0;
}

.page-news .news-themes__head .section__title {
  font-size: var(--text-2xl);
  letter-spacing: var(--tracking-heading);
}

.page-news .news-theme {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  padding-block: var(--section-y);
  border-top: 1px solid var(--color-line);
}

.page-news .news-theme__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-contrast-surface);
  aspect-ratio: 3 / 2;
}

.page-news .news-theme__media .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-news .news-theme__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    142deg,
    color-mix(in srgb, var(--color-primary) 62%, transparent) 0%,
    color-mix(in srgb, var(--color-accent) 66%, transparent) 100%
  );
  mix-blend-mode: multiply;
}

.page-news .news-theme__kicker {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
}

.page-news .news-theme__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: -0.03em;
  color: var(--color-ink);
}

.page-news .news-theme__value {
  margin: var(--space-2) 0 0;
  max-width: 42ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-news .news-theme__points {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-theme__points li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-news .news-theme__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: var(--space-2);
  height: var(--border-thin);
  background: var(--color-primary);
}

.page-news .news-theme__points strong {
  color: var(--color-ink);
  font-weight: var(--weight-heading);
}

.page-news .news-theme__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin: var(--space-4) 0 0;
}

.page-news .news-theme__link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-accent);
  transition: color 140ms ease, border-color 140ms ease, transform 140ms ease;
}

.page-news .news-theme__link:hover,
.page-news .news-theme__link:focus-visible {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateX(2px);
}

/* ============ 更新列表 ============ */

.page-news .news-feed {
  position: relative;
  background: var(--color-surface-alt);
  padding-block: calc(var(--section-y-lg) + var(--space-6)) var(--section-y-lg);
}

.page-news .news-feed::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: var(--space-6);
  pointer-events: none;
  background: linear-gradient(
    100deg,
    var(--color-primary) 0 58%,
    var(--color-accent) 58% 100%
  );
  clip-path: polygon(0 0, 100% 0, 100% 20%, 0 100%);
}

.page-news .news-feed__head .section__title {
  font-size: var(--text-2xl);
  letter-spacing: var(--tracking-heading);
}

.page-news .news-feed__filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  margin-top: var(--space-4);
}

.page-news .news-feed__filters .chip {
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: var(--text-sm);
  cursor: pointer;
}

.page-news .news-feed__filters .chip.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
  box-shadow: var(--shadow-1);
}

.page-news .news-feed__filters .chip:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-news .news-feed__list {
  display: grid;
  gap: 0;
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding-block: var(--space-4);
  border-top: 1px solid var(--color-line);
  transition: background-color 160ms ease;
}

.page-news .news-item:last-child {
  border-bottom: 1px solid var(--color-line);
}

.page-news .news-item:hover {
  background: var(--color-highlight);
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.page-news .news-item__stage {
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-news .news-item__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.page-news .news-item__sum {
  margin: var(--space-2) 0 0;
  max-width: 62ch;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-news .news-item__more {
  margin-top: var(--space-2);
}

.page-news .news-item__more summary {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  cursor: pointer;
  list-style: none;
}

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

.page-news .news-item__more summary::before {
  content: "+ ";
  font-family: var(--font-mono);
}

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

.page-news .news-item__more summary:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-news .news-item__points {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-2) 0 0;
  padding: 0 0 0 var(--space-3);
  list-style: none;
}

.page-news .news-item__points li {
  position: relative;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.page-news .news-item__points li::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-3));
  top: 0.7em;
  width: var(--space-1);
  height: var(--border-thin);
  background: var(--color-accent);
}

.page-news .news-item__link {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-news .news-item__link:hover,
.page-news .news-item__link:focus-visible {
  color: var(--color-accent);
}

/* ============ 结束出口 ============ */

.page-news .news-cta {
  background: var(--color-surface);
  padding-block: var(--section-y-lg);
}

.page-news .news-cta__panel {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - var(--space-4)));
}

.page-news .news-cta__eyebrow {
  color: var(--color-contrast-accent);
}

.page-news .news-cta__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-news .news-cta__desc {
  margin: var(--space-2) 0 0;
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-news .news-cta__actions .btn {
  text-decoration: none;
}

/* ============ 响应式 ============ */

@media (min-width: 720px) {
  .page-news .news-hero__figures {
    gap: var(--space-4) var(--space-8);
  }

  .page-news .news-theme__title {
    font-size: var(--text-2xl);
  }

  .page-news .news-cta__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-8);
  }

  .page-news .news-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-news {
    --news-slant: var(--space-8);
  }

  .page-news .news-theme {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    column-gap: var(--space-8);
    align-items: start;
  }

  .page-news .news-theme:nth-child(even) .news-theme__media {
    order: 2;
  }

  .page-news .news-item {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    column-gap: var(--space-6);
    align-items: start;
  }

  .page-news .news-item__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
}

@media (min-width: 1100px) {
  .page-news .news-hero__title-sub {
    max-width: 34ch;
  }

  .page-news .news-theme {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-hero__chip,
  .page-news .news-theme__link,
  .page-news .news-item {
    transition: none;
  }

  .page-news .news-hero__chip:hover,
  .page-news .news-hero__chip:focus-visible,
  .page-news .news-theme__link:hover,
  .page-news .news-theme__link:focus-visible {
    transform: none;
  }
}