.page-news {
  --news-tag-notice: var(--orange-500);
  --news-tag-archive: var(--green);
  --news-tag-version: var(--cyan-400);
  --news-tag-topic: var(--cyan-200);
  --news-gap: clamp(16px, 2.4vw, 28px);
  --news-grid-line: rgba(53, 224, 208, 0.07);
}

/* ---------- 首屏框景 ---------- */

.page-news .news-hero {
  margin-top: clamp(16px, 2.6vw, 32px);
}

.page-news .news-hero__frame {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: clamp(440px, 66vh, 620px);
  padding: clamp(22px, 4.5vw, 60px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
}

.page-news .news-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.page-news .news-hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 7, 14, 0.4) 0%, rgba(5, 7, 14, 0.88) 66%, var(--ink-900) 100%),
    radial-gradient(120% 90% at 14% 18%, rgba(53, 224, 208, 0.16), transparent 62%);
  pointer-events: none;
}

.page-news .news-hero__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--news-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--news-grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 72%);
  pointer-events: none;
}

.page-news .news-hero__body {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.page-news .news-hero__body .exhibit-label {
  margin-bottom: 18px;
}

.page-news .news-hero__lead {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(22px, 4vw, 60px);
  margin: clamp(28px, 5vw, 46px) 0 0;
  padding: clamp(18px, 2.4vw, 26px) 0 0;
  list-style: none;
  border-top: 1px solid rgba(242, 246, 250, 0.14);
}

.page-news .hero-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-news .hero-metric__key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-news .hero-metric__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(38px, 6.4vw, 66px);
  line-height: 1;
  color: var(--white);
}

.page-news .hero-metric__unit {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
}

/* ---------- 通用区块 ---------- */

.page-news .news-block {
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-news .section-head {
  max-width: 760px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-news .section-title {
  margin: 14px 0 0;
}

.page-news .section-lead {
  margin-top: 14px;
  color: var(--muted);
}

/* ---------- 四类条目边界 ---------- */

.page-news .scope-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .scope-item {
  padding: clamp(22px, 3vw, 34px);
  background: var(--ink-800);
  transition: background 200ms ease-out;
}

.page-news .scope-item:hover {
  background: rgba(53, 224, 208, 0.05);
}

.page-news .scope-item h3 {
  margin: 16px 0 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-news .scope-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .tag--notice {
  color: var(--news-tag-notice);
  border-color: rgba(255, 106, 43, 0.45);
}

.page-news .tag--archive {
  color: var(--news-tag-archive);
  border-color: rgba(78, 209, 138, 0.4);
}

.page-news .tag--version {
  color: var(--news-tag-version);
  border-color: rgba(53, 224, 208, 0.45);
}

.page-news .tag--topic {
  color: var(--news-tag-topic);
  border-color: rgba(155, 243, 234, 0.4);
}

/* ---------- 更新列表 ---------- */

.page-news .news-index__layout {
  display: grid;
  gap: clamp(30px, 4.5vw, 52px);
  align-items: start;
}

.page-news .news-index__main,
.page-news .news-index__aside {
  min-width: 0;
}

.page-news .news-tabs .tab-list {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-tabs .tab {
  appearance: none;
  flex: 0 0 auto;
  padding: 13px 18px;
  border: 0;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
}

.page-news .news-tabs .tab:hover {
  color: var(--cyan-200);
}

.page-news .news-tabs .tab[aria-selected="true"] {
  color: var(--white);
}

.page-news .news-tabs .tab:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -2px;
}

.page-news .news-panels {
  margin-top: -1px;
}

.page-news .news-panels .tab-panel[hidden] {
  display: none;
}

.page-news .index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .index-row {
  border-bottom: 1px solid var(--line);
}

.page-news .index-row__head {
  appearance: none;
  display: grid;
  width: 100%;
  gap: 8px 14px;
  padding: 18px 6px;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "label time"
    "title title"
    "batch batch";
  border: 0;
  background: transparent;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 200ms ease-out;
}

.page-news .index-row__head:hover {
  background: var(--glass);
}

.page-news .index-row__head:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -2px;
}

.page-news .index-row__label {
  grid-area: label;
  justify-self: start;
}

.page-news .index-row__batch {
  grid-area: batch;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-news .index-row__title {
  grid-area: title;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--white);
}

.page-news .index-row__time {
  grid-area: time;
  justify-self: end;
  align-self: start;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan-400);
  white-space: nowrap;
}

.page-news .index-row__panel {
  padding: 0 6px 22px;
  border-left: 2px solid var(--line);
  margin-left: 6px;
  padding-left: 16px;
}

.page-news .index-row__panel p {
  margin: 0 0 10px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .index-row__memo {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan-200);
}

/* ---------- 侧栏 ---------- */

.page-news .news-aside-figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-news .news-aside-figure .media-caption {
  color: var(--muted);
}

.page-news .news-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-news .news-links a {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 180ms ease-out, border-color 180ms ease-out;
}

.page-news .news-links a:hover,
.page-news .news-links a:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

/* ---------- 轮次刻度 ---------- */

.page-news .news-cycle {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
}

.page-news .news-cycle__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
}

.page-news .news-cycle::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 14, 0.72), rgba(5, 7, 14, 0.94));
  pointer-events: none;
}

.page-news .news-cycle__inner {
  position: relative;
  z-index: 2;
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-news .cycle-scale {
  padding: clamp(24px, 3.6vw, 40px);
  border: 1px solid var(--line);
  background: rgba(10, 15, 26, 0.72);
}

.page-news .cycle-scale__readout {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.page-news .cycle-scale__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(44px, 7vw, 76px);
  line-height: 1;
  color: var(--cyan-400);
}

.page-news .cycle-scale__caption {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-news .cycle-scale__track {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 42px;
  margin: 20px 0 18px;
}

.page-news .cycle-scale__track::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: var(--line);
}

.page-news .cycle-scale__track span {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(53, 224, 208, 0.12);
}

.page-news .cycle-scale__track span:last-child {
  background: var(--orange-500);
  box-shadow: 0 0 0 5px rgba(255, 106, 43, 0.16);
}

.page-news .cycle-scale__total {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .cycle-scale__total .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--white);
}

.page-news .cycle-notes {
  display: grid;
  gap: 14px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: clamp(20px, 2.6vw, 28px) 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .cycle-notes li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .cycle-notes b {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--cyan-400);
}

/* ---------- 筛选 ---------- */

.page-news .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .chip {
  appearance: none;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
  transition: color 180ms ease-out, border-color 180ms ease-out, box-shadow 180ms ease-out;
}

.page-news .chip:hover {
  color: var(--cyan-200);
  border-color: rgba(53, 224, 208, 0.4);
}

.page-news .chip[aria-pressed="true"] {
  color: var(--white);
  border-color: var(--cyan-400);
  box-shadow: inset 0 -2px 0 var(--cyan-400);
}

.page-news .chip:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-news .news-filter__hint {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .filter-facts {
  display: grid;
  gap: 1px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .filter-facts > div {
  padding: 20px clamp(18px, 2.4vw, 26px);
  background: var(--ink-800);
}

.page-news .filter-facts dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-news .filter-facts dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  line-height: 1.6;
  color: var(--white);
}

/* ---------- 勘误 ---------- */

.page-news .news-errata__inner {
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange-500);
  background: var(--ink-800);
}

.page-news .news-errata__text {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-errata__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: clamp(24px, 3vw, 34px);
}

.page-news .news-errata__meta {
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-news .scope-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-news .index-row__head {
    grid-template-columns: max-content max-content minmax(0, 1fr) max-content;
    grid-template-areas: "label batch title time";
    align-items: center;
    gap: 10px 18px;
    padding: 17px 8px;
  }

  .page-news .index-row__time {
    align-self: center;
  }
}

@media (min-width: 1024px) {
  .page-news .news-index__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  }

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

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

@media (max-width: 419px) {
  .page-news .hero-metrics {
    gap: 18px;
  }

  .page-news .index-row__title {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .scope-item,
  .page-news .index-row__head,
  .page-news .chip,
  .page-news .news-links a {
    transition: none;
  }
}