.page-news {
  --news-offset: 6px;
  position: relative;
  padding-bottom: 76px;
}

/* ---------- 头部 ---------- */
.page-news .news-head {
  position: relative;
  isolation: isolate;
  padding-top: 18px;
  padding-bottom: 12px;
}

.page-news .news-head::before {
  content: "";
  position: absolute;
  top: -24px;
  right: 0;
  width: min(540px, 68vw);
  height: 250px;
  background: linear-gradient(124deg, rgba(109, 60, 255, .5), rgba(92, 225, 255, .14) 55%, transparent 88%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 70%);
  pointer-events: none;
  z-index: -1;
}

.page-news .news-head__title {
  position: relative;
  margin: 14px 0 16px;
  max-width: 20ch;
  font-family: var(--ph-font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ph-ink);
}

.page-news .news-head__lead {
  position: relative;
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ph-muted);
}

.page-news .news-head__media {
  position: relative;
  margin-top: 28px;
  border: 1px solid var(--ph-line);
  border-radius: var(--ph-radius-lg);
  overflow: hidden;
  background: var(--ph-panel-2);
  box-shadow: 0 var(--news-offset) 0 0 var(--ph-panel);
}

.page-news .news-head__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-news .news-cap {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 5px 11px;
  border-radius: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ph-void);
  background: var(--ph-paper);
}

/* ---------- 动态列表 ---------- */
.page-news .news-filterrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ph-line-soft);
}

.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-news .news-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 20px 24px;
  border: 1px solid var(--ph-line-soft);
  border-radius: var(--ph-radius);
  background: linear-gradient(160deg, var(--ph-panel-2), var(--ph-void-2));
  box-shadow: 0 var(--news-offset) 0 0 var(--ph-steel);
  transition: transform .28s var(--ph-ease), box-shadow .28s var(--ph-ease);
}

.page-news .news-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--news-accent, var(--ph-purple));
}

.page-news .news-card[data-tags*="版本迭代"] { --news-accent: var(--ph-purple); }
.page-news .news-card[data-tags*="数据观察"] { --news-accent: var(--ph-ice); }
.page-news .news-card[data-tags*="场馆现场"] { --news-accent: var(--ph-neon); }
.page-news .news-card[data-tags*="使用技巧"] { --news-accent: var(--ph-amber); }

.page-news .news-card:hover,
.page-news .news-card:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 calc(var(--news-offset) + 6px) 0 0 var(--ph-panel);
}

.page-news .news-card__tag {
  align-self: flex-start;
}

.page-news .news-card__title {
  margin: 0;
  font-family: var(--ph-font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.36;
  letter-spacing: -0.005em;
  color: var(--ph-ink);
}

.page-news .news-card__sum {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ph-muted);
}

.page-news .news-card__meta {
  margin-top: auto;
  padding-top: 10px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ph-muted);
  opacity: .82;
}

/* ---------- 版本迭代 ---------- */
.page-news .news-versions-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-news .news-versions {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-versions::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 14px;
  bottom: 18px;
  width: 1px;
  background: linear-gradient(180deg, var(--ph-purple), rgba(92, 225, 255, .32), transparent);
}

.page-news .news-version {
  position: relative;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 24px;
}

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

.page-news .news-version__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--ph-line);
  background: var(--ph-panel);
  color: var(--ph-ink);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.page-news .news-version--current .news-version__num {
  border-color: transparent;
  background: var(--ph-neon);
  color: var(--ph-void);
}

.page-news .news-version__body h3 {
  margin: 5px 0 8px;
  font-family: var(--ph-font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.36;
  color: var(--ph-ink);
}

.page-news .news-version__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ph-muted);
}

.page-news .news-versions__figure {
  margin: 0;
  border: 1px solid var(--ph-line);
  border-radius: var(--ph-radius);
  overflow: hidden;
  background: var(--ph-panel-2);
  box-shadow: 0 8px 0 0 var(--ph-panel-2);
}

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

/* ---------- 数据观察 ---------- */
.page-news .news-observe__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-news .news-observe__copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ph-muted);
}

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

.page-news .news-observe__figure {
  margin: 0;
  padding: 20px 18px 14px;
  border: 1px solid var(--ph-line);
  border-radius: var(--ph-radius);
  background: radial-gradient(circle at 80% 16%, rgba(109, 60, 255, .42), transparent 62%), var(--ph-void-2);
  box-shadow: 0 8px 0 0 var(--ph-steel);
}

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

.page-news .news-observe__cap {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ph-muted);
}

.page-news .news-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
}

.page-news .news-metric {
  padding: 16px 16px 14px;
  border: 1px solid var(--ph-line-soft);
  border-radius: 14px;
  background: var(--ph-panel-2);
}

.page-news .news-metric dt {
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ph-muted);
}

.page-news .news-metric dd {
  margin: 0;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ph-neon);
}

/* ---------- 场馆现场 ---------- */
.page-news .news-venue__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-news .news-venue__figure {
  margin: 0;
  border: 1px solid var(--ph-line);
  border-radius: var(--ph-radius);
  overflow: hidden;
  background: var(--ph-panel-2);
  box-shadow: 0 8px 0 0 var(--ph-panel-2);
}

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

.page-news .news-venue__copy h2 {
  margin: 12px 0 14px;
  font-family: var(--ph-font-display);
  font-weight: 700;
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ph-ink);
}

.page-news .news-venue__copy > p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ph-muted);
}

.page-news .news-venue__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-venue__list li {
  padding: 14px 16px;
  border-left: 3px solid var(--ph-ice);
  border-radius: 0 12px 12px 0;
  background: var(--ph-panel-2);
}

.page-news .news-venue__list strong {
  display: block;
  margin-bottom: 5px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ph-ink);
}

.page-news .news-venue__list span {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ph-muted);
}

.page-news .news-venue__foot {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ph-muted);
  opacity: .85;
}

/* ---------- 使用技巧 ---------- */
.page-news .news-tips__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-news .news-tip {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--ph-line-soft);
  border-radius: var(--ph-radius);
  background: var(--ph-panel-2);
  transition: border-color .24s var(--ph-ease);
}

.page-news .news-tip:hover {
  border-color: var(--ph-line);
}

.page-news .news-tip__num {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ph-ice);
}

.page-news .news-tip h3 {
  margin: 0 0 9px;
  font-family: var(--ph-font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.38;
  color: var(--ph-ink);
}

.page-news .news-tip p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ph-muted);
}

/* ---------- 收尾引导 ---------- */
.page-news .news-callout__inner {
  position: relative;
  padding: 30px 22px;
  border: 1px solid var(--ph-line);
  border-radius: var(--ph-radius-lg);
  background: linear-gradient(132deg, rgba(109, 60, 255, .3), rgba(12, 10, 22, .92) 62%), var(--ph-void-2);
  overflow: hidden;
}

.page-news .news-callout__copy h2 {
  margin: 12px 0 14px;
  font-family: var(--ph-font-display);
  font-weight: 800;
  font-size: clamp(24px, 5.2vw, 36px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ph-ink);
}

.page-news .news-callout__copy p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ph-muted);
}

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

.page-news .news-callout__figure {
  margin-top: 26px;
  border: 1px solid var(--ph-line);
  border-radius: var(--ph-radius);
  overflow: hidden;
  background: var(--ph-panel-2);
}

.page-news .news-callout__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: .9;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .news-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .news-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .page-news .news-tips__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .news-head__media {
    margin-top: 34px;
  }
}

@media (min-width: 900px) {
  .page-news .news-head {
    padding-top: 26px;
    padding-bottom: 20px;
  }

  .page-news .news-head__lead {
    font-size: 16px;
  }

  .page-news .news-versions-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
    gap: 38px;
  }

  .page-news .news-observe__grid {
    grid-template-columns: 0.92fr 1.08fr;
    align-items: center;
    gap: 40px;
  }

  .page-news .news-venue__grid {
    grid-template-columns: 0.95fr 1.05fr;
    align-items: center;
    gap: 40px;
  }

  .page-news .news-callout__inner {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: 34px;
    padding: 42px 40px;
  }

  .page-news .news-callout__actions {
    margin-top: 0;
    justify-content: flex-end;
  }
}

@media (min-width: 1100px) {
  .page-news .news-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .news-tip {
    transition: none;
  }

  .page-news .news-card:hover,
  .page-news .news-card:focus-within {
    transform: none;
  }
}