.page-news {
  --news-rule: var(--ink-700);
  --news-rule-soft: rgba(42, 49, 56, 0.6);
}

/* ============ 首屏 ============ */
.page-news .news-hero {
  position: relative;
  padding-block: clamp(28px, 4vw, 48px) clamp(40px, 6vw, 76px);
  background:
    radial-gradient(120% 88% at 84% 0%, rgba(255, 77, 0, 0.18), transparent 62%),
    radial-gradient(90% 60% at 4% 100%, rgba(45, 156, 255, 0.1), transparent 66%),
    var(--ink-900);
  border-bottom: 1px solid var(--news-rule);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--news-rule-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--news-rule-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.28;
  pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 88%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 88%);
}

.page-news .news-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__text {
  max-width: 760px;
  margin-top: clamp(22px, 3vw, 36px);
}

.page-news .news-hero__lede {
  margin-top: 20px;
  max-width: 60ch;
  font-size: var(--step-md);
  line-height: 1.9;
  color: var(--mist);
  opacity: 0.88;
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-news .news-hero__art {
  margin-top: clamp(28px, 4vw, 48px);
  border: 1px solid var(--news-rule);
  background: var(--ink-800);
}

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

/* ============ 通用区块标题辅助 ============ */
.page-news .section-head {
  gap: 16px;
  align-items: flex-end;
}

.page-news .section-head__note {
  max-width: 38ch;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: 0.02em;
  line-height: 1.8;
  color: var(--steel);
}

/* ============ 本周要点 ============ */
.page-news .pulse-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 3vw, 40px);
  background: var(--news-rule);
  border: 1px solid var(--news-rule);
}

.page-news .pulse-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 3vw, 32px);
  background: var(--ink-900);
  transition: background var(--dur) var(--ease);
}

.page-news .pulse-card:hover,
.page-news .pulse-card:focus-within {
  background: var(--ink-850);
}

.page-news .pulse-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(40px, 7vw, 62px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--lava);
}

.page-news .pulse-card__num--sm {
  font-size: clamp(26px, 4.4vw, 38px);
  color: var(--bolt);
  letter-spacing: -0.01em;
}

.page-news .pulse-card__num--red {
  color: var(--red-card);
}

.page-news .pulse-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-news .pulse-card__line {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .pulse-card__source {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--news-rule);
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: 0.04em;
  color: var(--steel);
  opacity: 0.55;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news .pulse-card:hover .pulse-card__source,
.page-news .pulse-card:focus-within .pulse-card__source {
  opacity: 1;
  color: var(--lava);
}

/* ============ 日志布局 ============ */
.page-news .log-layout {
  display: grid;
  gap: 20px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-news .log-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-news .log-rail .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .chip {
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-news .chip.is-active,
.page-news .chip[aria-pressed="true"] {
  background: var(--mist);
  color: var(--ink-900);
  border-color: var(--mist);
}

.page-news .chip--sched.is-active,
.page-news .chip--sched[aria-pressed="true"] {
  background: var(--lava);
  border-color: var(--lava);
  color: var(--ink-900);
}

.page-news .chip--ver.is-active,
.page-news .chip--ver[aria-pressed="true"] {
  background: var(--bolt);
  border-color: var(--bolt);
  color: var(--ink-900);
}

.page-news .chip--card.is-active,
.page-news .chip--card[aria-pressed="true"] {
  background: var(--red-card);
  border-color: var(--red-card);
  color: var(--paper);
}

.page-news .chip--topic.is-active,
.page-news .chip--topic[aria-pressed="true"] {
  background: var(--wire);
  border-color: var(--wire);
  color: var(--ink-900);
}

/* ============ 日志条目 ============ */
.page-news .log-stream {
  border-top: 1px solid var(--news-rule);
}

.page-news .log-item {
  border-bottom: 1px solid var(--news-rule);
  scroll-margin-top: 140px;
}

.page-news .log-item > summary {
  display: grid;
  gap: 6px;
  padding: 16px 12px;
  list-style: none;
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}

.page-news .log-item > summary::-webkit-details-marker {
  display: none;
}

.page-news .log-item > summary:hover {
  background: var(--ink-850);
}

.page-news .log-item > summary:focus-visible {
  outline: 2px solid var(--bolt);
  outline-offset: 2px;
}

.page-news .log-item__no {
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-news .log-item__tag {
  justify-self: start;
  padding: 2px 9px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-news .log-item__tag::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 6px;
  vertical-align: 1px;
  background: currentColor;
}

.page-news .log-item__tag--sched {
  color: var(--lava);
}

.page-news .log-item__tag--ver {
  color: var(--bolt);
}

.page-news .log-item__tag--card {
  color: var(--red-card);
}

.page-news .log-item__tag--topic {
  color: var(--wire);
}

.page-news .log-item__headline {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .log-item__when {
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-news .log-item__more {
  padding: 0 12px 20px;
  border-left: 2px solid var(--lava);
  margin-left: 12px;
}

.page-news .log-item__more p {
  margin: 0 0 10px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

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

.page-news .log-item__more .mono-chip {
  vertical-align: middle;
}

/* ============ 版本索引 ============ */
.page-news .log-index {
  padding-top: 4px;
}

.page-news .idx-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .idx-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--news-rule-soft);
}

.page-news .idx-list a {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--wire);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-news .idx-list a:hover,
.page-news .idx-list a:focus-visible {
  color: var(--bolt);
}

.page-news .idx-list span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
}

.page-news .log-index__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--steel);
}

/* ============ 版本迭代 ============ */
.page-news .version-split {
  display: grid;
  gap: 24px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-news .vtable-wrap {
  overflow-x: auto;
  border: 1px solid var(--news-rule);
  background: var(--ink-800);
}

.page-news .vtable {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-news .vtable th,
.page-news .vtable td {
  text-align: left;
  vertical-align: top;
  padding: 14px 16px;
  border-bottom: 1px solid var(--news-rule);
  line-height: 1.75;
}

.page-news .vtable thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--steel);
  background: var(--ink-900);
}

.page-news .vtable tbody tr {
  transition: background var(--dur) var(--ease);
}

.page-news .vtable tbody tr:hover {
  background: var(--lava-soft);
}

.page-news .vtable tbody tr:last-child td {
  border-bottom: none;
}

.page-news .vtable td:first-child {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--bolt);
  white-space: nowrap;
}

.page-news .vtable td:nth-child(2) {
  color: var(--mist);
}

.page-news .vtable td:nth-child(3) {
  color: var(--steel);
}

.page-news .version-split__art {
  border: 1px solid var(--news-rule);
  background: var(--ink-800);
}

.page-news .version-split__art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ============ 红黄牌观察 ============ */
.page-news .card-split {
  display: grid;
  gap: 24px;
  margin-top: clamp(20px, 3vw, 32px);
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--news-rule);
  border-left: 3px solid var(--red-card);
  background:
    linear-gradient(140deg, rgba(224, 27, 36, 0.08), transparent 46%),
    var(--ink-800);
}

.page-news .card-split__art {
  border: 1px solid var(--news-rule);
  background: var(--ink-900);
}

.page-news .card-split__art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .card-split__text p {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mist);
}

.page-news .fact-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 24px 0;
  padding: 0;
  list-style: none;
  background: var(--news-rule);
  border: 1px solid var(--news-rule);
}

.page-news .fact-row li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 12px;
  background: var(--ink-900);
}

.page-news .fact-row__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 32px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--bolt);
}

.page-news .fact-row__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-news .card-split__cta {
  margin: 0;
}

/* ============ 专题系列 ============ */
.page-news .series-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 32px);
  background: var(--news-rule);
  border: 1px solid var(--news-rule);
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  background: var(--ink-900);
  transition: background var(--dur) var(--ease);
}

.page-news .series-card:hover {
  background: var(--ink-850);
}

.page-news .series-card__art {
  border-bottom: 1px solid var(--news-rule);
  background: var(--ink-800);
}

.page-news .series-card__art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .series-card__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  padding: clamp(20px, 2.6vw, 28px);
}

.page-news .series-card__title {
  margin: 0;
  font-size: var(--step-lg);
  font-weight: 800;
  line-height: 1.45;
  color: var(--mist);
}

.page-news .series-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

.page-news .series-card__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--news-rule);
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: 0.04em;
  color: var(--wire);
}

/* ============ 订阅与回访 ============ */
.page-news .subscribe-panel {
  display: grid;
  gap: 28px;
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--news-rule);
  background:
    linear-gradient(120deg, rgba(255, 77, 0, 0.16), transparent 54%),
    linear-gradient(300deg, rgba(45, 156, 255, 0.12), transparent 58%),
    var(--ink-800);
}

.page-news .subscribe-panel__text p {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mist);
}

.page-news .subscribe-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

.page-news .subscribe-panel__note {
  flex: 1 1 100%;
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--steel);
}

/* ============ 窄屏 ============ */
@media (max-width: 719px) {
  .page-news .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-news .section-head__note {
    max-width: none;
  }

  .page-news .log-item > summary {
    padding: 14px 8px;
  }

  .page-news .log-item__more {
    margin-left: 8px;
    padding: 0 8px 18px;
  }

  .page-news .subscribe-panel__actions .btn {
    flex: 1 1 100%;
    justify-content: center;
  }
}

/* ============ 桌面栅格 ============ */
@media (min-width: 720px) {
  .page-news .pulse-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-news .card-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-news .version-split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .subscribe-panel {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .log-item > summary {
    grid-template-columns: 72px 74px minmax(0, 1fr) 92px;
    align-items: baseline;
    gap: 10px 14px;
    padding: 16px 14px;
  }

  .page-news .log-item__tag {
    justify-self: start;
  }

  .page-news .log-item__when {
    text-align: right;
  }

  .page-news .log-item__more {
    padding-left: 158px;
    margin-left: 0;
  }
}

@media (min-width: 1000px) {
  .page-news .log-layout {
    grid-template-columns: 152px minmax(0, 1fr) 158px;
    gap: 32px;
    align-items: start;
  }

  .page-news .log-rail {
    position: sticky;
    top: 132px;
  }

  .page-news .log-rail .chips {
    flex-direction: column;
    align-items: stretch;
  }

  .page-news .log-rail .chip {
    justify-content: flex-start;
    text-align: left;
  }

  .page-news .log-index {
    position: sticky;
    top: 132px;
    padding-left: 20px;
    border-left: 1px solid var(--news-rule);
  }
}

@media (min-width: 1240px) {
  .page-news .log-layout {
    grid-template-columns: 168px minmax(0, 1fr) 172px;
    gap: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pulse-card,
  .page-news .pulse-card__source,
  .page-news .chip,
  .page-news .log-item > summary,
  .page-news .series-card,
  .page-news .vtable tbody tr,
  .page-news .idx-list a {
    transition: none;
  }
}