.page-news {
  background: transparent;
}

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

/* ===== Hero ===== */
.page-news .news-hero {
  position: relative;
  display: grid;
  gap: 28px;
  padding: clamp(32px, 7vw, 64px) 0 clamp(28px, 5vw, 48px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(234, 240, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(234, 240, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: linear-gradient(90deg, transparent 25%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 25%, #000 100%);
  pointer-events: none;
}

.page-news .news-hero__text {
  position: relative;
}

.page-news .news-hero__label {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding-left: 24px;
  position: relative;
  margin-bottom: 10px;
}

.page-news .news-hero__label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 16px;
  height: 2px;
  background: var(--color-accent);
}

.page-news .news-hero__title {
  font-family: var(--font-heading);
  font-size: var(--size-h1);
  line-height: 1.12;
  text-transform: uppercase;
  color: var(--color-white);
  letter-spacing: 0.02em;
  margin: 0 0 14px;
}

.page-news .news-hero__lede {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--size-body);
  line-height: 1.7;
  max-width: 640px;
}

.page-news .news-hero__meta {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.page-news .news-hero__panel {
  position: relative;
  background: var(--color-primary-deep);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  min-height: 130px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.page-news .news-hero__panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 72px;
  height: 100%;
  background: var(--color-accent);
  clip-path: polygon(30% 0, 100% 0, 70% 100%, 0 100%);
  opacity: 0.12;
  pointer-events: none;
}

.page-news .news-hero__panel-num {
  font-family: var(--font-mono);
  font-size: clamp(32px, 5vw, 44px);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
}

.page-news .news-hero__panel-label {
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: var(--size-small);
  color: var(--color-text);
  letter-spacing: 0.06em;
}

.page-news .news-hero__panel-sub {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  margin-top: 8px;
}

/* ===== 档案布局 ===== */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-bottom: var(--space-section);
}

.page-news .news-aside {
  position: relative;
  background: rgba(7, 22, 48, 0.6);
  border: 1px solid var(--color-border);
  padding: 20px;
}

.page-news .news-aside::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
}

.page-news .news-aside__label {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.page-news .news-index {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-news .news-index a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 4px 10px 12px;
  border-left: 2px solid transparent;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--size-small);
  text-decoration: none;
  transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.page-news .news-index a:hover,
.page-news .news-index a:focus {
  border-left-color: var(--color-accent);
  background: rgba(255, 107, 53, 0.08);
  color: var(--color-white);
}

.page-news .news-index a span {
  color: var(--color-text-muted);
  font-size: var(--size-tiny);
}

.page-news .news-aside__divider {
  height: 1px;
  background: var(--color-border);
  margin-bottom: 20px;
}

.page-news .news-month {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-news .news-month li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: var(--size-small);
  color: var(--color-text-muted);
}

.page-news .news-month span {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-accent);
}

.page-news .news-aside__note {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  line-height: 1.7;
  color: var(--color-text-muted);
  margin: 24px 0 0;
  border-left: 2px solid var(--color-accent);
  padding-left: 12px;
}

/* ===== 通用章节 ===== */
.page-news .news-section {
  padding-top: var(--space-section);
  scroll-margin-top: 140px;
}

.page-news .news-section:first-child {
  padding-top: 0;
}

.page-news .news-section__head {
  margin-bottom: 28px;
}

.page-news .news-section__title {
  font-family: var(--font-heading);
  font-size: var(--size-h2);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-white);
  margin: 8px 0 6px;
}

.page-news .news-section__desc {
  margin: 0;
  max-width: 640px;
  color: var(--color-text-muted);
  font-size: var(--size-small);
  line-height: 1.65;
}

.page-news .news-section__cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.page-news .news-section__cta--note {
  align-items: flex-start;
}

.page-news .news-section__cta .btn {
  align-self: flex-start;
  margin: 0;
}

.page-news .news-cta-note {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--size-small);
  line-height: 1.7;
  max-width: 720px;
}

.page-news .news-cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ===== 最新发布 ===== */
.page-news .latest-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-news .news-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: border-color 220ms ease-out, transform 220ms ease-out;
}

.page-news .news-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
}

.page-news .news-card:hover,
.page-news .news-card:focus-within {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.page-news .news-card__media {
  margin: 0;
  background: var(--color-primary-deep);
  overflow: hidden;
}

.page-news .news-card__media img {
  max-height: 240px;
  object-fit: cover;
}

.page-news .news-card__body {
  padding: 22px 24px 24px;
}

.page-news .news-card__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.page-news .news-card__date {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.page-news .news-card__title {
  font-family: var(--font-heading);
  font-size: var(--size-h3);
  line-height: 1.28;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-white);
  margin: 0 0 10px;
}

.page-news .news-card__excerpt {
  margin: 0 0 14px;
  color: var(--color-text-muted);
  font-size: var(--size-small);
  line-height: 1.7;
}

.page-news .news-card__meta {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-text-muted);
  margin: 0;
  border-top: 1px dashed var(--color-border);
  padding-top: 10px;
}

@media (hover: hover) and (min-width: 900px) {
  .page-news .news-card__excerpt {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(6px);
    margin-bottom: 0;
    transition: max-height 260ms ease-out, opacity 260ms ease-out, transform 260ms ease-out, margin-bottom 260ms ease-out;
  }

  .page-news .news-card:hover .news-card__excerpt,
  .page-news .news-card:focus-within .news-card__excerpt {
    max-height: 220px;
    opacity: 1;
    transform: translateY(0);
    margin-bottom: 14px;
  }
}

/* ===== 复盘专题 ===== */
.page-news .review-cover {
  margin: 0 0 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.page-news .review-cover img {
  width: 100%;
  height: auto;
}

.page-news .review-cover figcaption {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-text-muted);
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  background: rgba(7, 22, 48, 0.6);
}

.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-news .topic-cluster {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 20px;
  overflow: hidden;
}

.page-news .topic-cluster::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 44px;
  height: 3px;
  background: var(--color-accent);
  opacity: 0.6;
  transition: width 220ms ease-out, opacity 220ms ease-out;
}

.page-news .topic-cluster:hover::after {
  width: 100%;
  opacity: 1;
}

.page-news .topic-cluster__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.page-news .topic-cluster__title {
  font-family: var(--font-heading);
  font-size: var(--size-h3);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-white);
  margin: 0;
}

.page-news .topic-cluster__count {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-accent);
  white-space: nowrap;
}

.page-news .topic-cluster__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-news .topic-cluster__list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: var(--size-small);
  line-height: 1.45;
  color: var(--color-text);
}

.page-news .topic-cluster__list li:last-child {
  border-bottom: 0;
}

.page-news .topic-cluster__list span {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ===== 版本动态 ===== */
.page-news .version-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-news .version-timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  border-left: 1px solid var(--color-border);
  display: grid;
  gap: 28px;
}

.page-news .version-timeline__item {
  position: relative;
}

.page-news .version-timeline__item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 6px;
  width: 11px;
  height: 11px;
  background: var(--color-accent);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-news .version-timeline__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.page-news .version-timeline__ver {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background: var(--color-accent);
  padding: 2px 8px;
  line-height: 1.4;
}

.page-news .version-timeline__meta span:not(.version-timeline__ver) {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.page-news .version-timeline__title {
  font-family: var(--font-heading);
  font-size: var(--size-h3);
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-white);
  margin: 0 0 6px;
}

.page-news .version-timeline__desc {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--size-small);
  line-height: 1.65;
}

.page-news .version-visual {
  position: relative;
  max-width: 280px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 12px;
  overflow: hidden;
}

.page-news .version-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent), transparent 55%);
  opacity: 0.1;
  pointer-events: none;
}

.page-news .version-visual img {
  width: 100%;
  height: auto;
}

.page-news .version-visual figcaption {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  text-align: center;
  color: var(--color-text-muted);
  padding-top: 10px;
  margin-top: 10px;
  border-top: 1px solid var(--color-border);
}

/* ===== 数据观察 ===== */
.page-news .insight-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-news .insight-heatmap {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.page-news .insight-heatmap img {
  width: 100%;
  height: auto;
}

.page-news .insight-heatmap figcaption {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  color: var(--color-text-muted);
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.page-news .insight-stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-news .stat-card {
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  padding: 16px 18px;
}

.page-news .stat-card::after {
  content: "REC";
  position: absolute;
  right: -8px;
  bottom: -8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: rgba(234, 240, 255, 0.08);
  transform: rotate(-8deg);
}

.page-news .stat-card__label {
  display: block;
  font-size: var(--size-small);
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.page-news .stat-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  line-height: 1.3;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.page-news .stat-card p {
  margin: 0;
  font-size: var(--size-small);
  line-height: 1.55;
  color: var(--color-text);
}

/* ===== 底部路径 ===== */
.page-news .news-trail {
  border-top: 1px solid var(--color-border);
  padding: 28px 0 56px;
}

.page-news .news-trail__label {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 16px;
}

.page-news .news-trail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
}

.page-news .news-trail__links a {
  color: var(--color-text);
  font-size: var(--size-small);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.page-news .news-trail__links a:hover,
.page-news .news-trail__links a:focus {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ===== 桌面增强 ===== */
@media (min-width: 700px) {
  .page-news .latest-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-news .news-card--feature {
    grid-column: 1 / -1;
  }

  .page-news .topic-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-news .topic-cluster {
    min-height: 210px;
  }

  .page-news .stat-card {
    min-height: 110px;
  }
}

@media (min-width: 820px) {
  .page-news .insight-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }

  .page-news .version-wrap {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: stretch;
  }

  .page-news .news-hero__title {
    max-width: 840px;
  }

  .page-news .news-hero__panel {
    align-self: stretch;
  }

  .page-news .news-card--feature {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: stretch;
  }

  .page-news .news-card--feature .news-card__media {
    min-height: 240px;
  }

  .page-news .news-card--feature .news-card__body {
    padding: 32px 36px;
  }

  .page-news .news-section__cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 56px;
  }

  .page-news .news-aside {
    position: sticky;
    top: 156px;
    z-index: 10;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .news-card__excerpt,
  .page-news .topic-cluster::after,
  .page-news .news-index a,
  .page-news .news-trail__links a {
    transition: none;
  }
}