.page-news {
  --news-line: rgba(124, 134, 168, 0.32);
  --news-line-paper: rgba(224, 214, 192, 0.9);
  --news-soft: rgba(248, 250, 255, 0.78);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  padding: clamp(24px, 4vw, 48px) 0 clamp(48px, 7vw, 88px);
}

.page-news .news-hero .crumbs {
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-news .news-hero__title {
  margin: clamp(14px, 2vw, 22px) 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 6.4vw, 84px);
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-news .news-hero__lead {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--news-soft);
}

.page-news .news-hero__panel {
  border: var(--bw) solid var(--night-2);
  background: rgba(26, 35, 80, 0.72);
  box-shadow: 6px 6px 0 var(--blue);
  padding: clamp(18px, 2.4vw, 26px);
}

.page-news .news-hero__panel-title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-news .news-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-hero__stat:last-child {
  border-bottom: 0;
}

.page-news .news-hero__stat-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  color: var(--white);
}

.page-news .news-hero__stat-label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

.page-news .news-hero__index {
  display: grid;
  margin-top: 16px;
  border-top: 2px solid var(--blue);
}

.page-news .news-hero__index a {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid var(--news-line);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--blue-lift);
  text-decoration: none;
  transition: color 120ms var(--ease), padding-left 120ms var(--ease);
}

.page-news .news-hero__index a:hover,
.page-news .news-hero__index a:focus-visible {
  color: var(--white);
  padding-left: 6px;
}

/* ---------- 区块标题 ---------- */

.page-news .news-sec-head {
  display: grid;
  gap: 12px;
  max-width: 66ch;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-news .news-sec-head__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-news .news-sec-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.14;
  letter-spacing: 0.06em;
  color: var(--white);
}

.page-news .news-sec-head__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(248, 250, 255, 0.74);
}

.page-news .band--paper .news-sec-head__eyebrow {
  color: var(--muted-ink);
}

.page-news .band--paper .news-sec-head__title {
  color: var(--ink);
}

.page-news .band--paper .news-sec-head__desc {
  color: var(--muted-ink);
}

/* ---------- 图片框 ---------- */

.page-news .media-frame {
  margin: 0;
}

.page-news .news-latest__fig,
.page-news .news-series__fig,
.page-news .revision__fig {
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-news .revision__fig {
  margin-bottom: 0;
}

.page-news .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  background: var(--night-2);
}

.page-news .media-frame__caption {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--news-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .band--paper .media-frame__caption {
  border-top-color: var(--paper-2);
  color: var(--muted-ink);
}

/* ---------- 过滤条 ---------- */

.page-news .news-filter {
  display: grid;
  gap: 6px;
  padding: clamp(16px, 2vw, 22px);
  margin-bottom: clamp(20px, 3vw, 30px);
  border: 1px solid var(--news-line);
  background: rgba(26, 35, 80, 0.6);
}

.page-news .news-filter__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-news .news-filter__input {
  width: 100%;
  padding: 8px 0;
  border: 0;
  border-bottom: 2px solid var(--blue);
  background: transparent;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--white);
  outline-offset: 4px;
}

.page-news .news-filter__input::placeholder {
  color: rgba(124, 134, 168, 0.72);
}

.page-news .news-filter__hint {
  margin: 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 观测条目列表 ---------- */

.page-news .obs-list {
  --obs-pad: clamp(20px, 3vw, 34px);
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--obs-pad);
  border-left: 2px solid var(--news-line);
}

.page-news .obs-item {
  position: relative;
  padding: clamp(22px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--news-line);
}

.page-news .obs-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .obs-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--obs-pad) - 6px);
  top: clamp(30px, 3.6vw, 40px);
  width: 10px;
  height: 10px;
  background: var(--muted);
  transition: background 120ms var(--ease), transform 120ms var(--ease);
}

.page-news .obs-item:hover::before,
.page-news .obs-item:focus-within::before {
  background: var(--blue-lift);
  transform: scale(1.3);
}

.page-news .obs-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.page-news .obs-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-news .obs-item__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.42;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-news .obs-item__excerpt {
  margin: 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--news-soft);
}

.page-news .obs-item__more {
  margin-top: 14px;
  padding-left: 14px;
  border-left: 3px solid var(--blue);
}

.page-news .obs-item__more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--blue-lift);
}

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

.page-news .obs-item__more summary::after {
  content: " +";
}

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

.page-news .obs-item__more p {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 专题系列 ---------- */

.page-news .series-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .series-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: clamp(22px, 3vw, 30px) 0;
  border-top: 1px solid var(--paper-2);
}

.page-news .series-item:last-child {
  border-bottom: 1px solid var(--paper-2);
}

.page-news .series-item__index {
  display: inline-block;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--ink);
  border-bottom: 4px solid var(--ink);
}

.page-news .series-item:nth-child(1) .series-item__index {
  border-bottom-color: var(--net);
}

.page-news .series-item:nth-child(2) .series-item__index {
  border-bottom-color: var(--foreign);
}

.page-news .series-item:nth-child(3) .series-item__index {
  border-bottom-color: var(--corner);
}

.page-news .series-item__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.36;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-news .series-item__desc {
  margin: 0 0 14px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted-ink);
}

.page-news .series-item__order {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .series-item__order-label {
  flex: 0 0 auto;
  padding: 3px 8px;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

/* ---------- 口径变更记录 ---------- */

.page-news .revision__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-news .rev-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .rev-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: clamp(20px, 2.6vw, 28px) 0;
  border-bottom: 1px solid var(--news-line);
}

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

.page-news .rev-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .rev-item__ver {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--corner);
}

.page-news .rev-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.42;
  color: var(--white);
}

.page-news .rev-item__desc {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--news-soft);
}

.page-news .rev-item__impact {
  margin: 0;
  padding-left: 12px;
  border-left: 3px solid var(--blue);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ---------- 年度汇总 ---------- */

.page-news .annual__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-news .annual__steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .annual__step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--news-line);
}

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

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

.page-news .annual__step-num {
  min-width: 2.2ch;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 4.2vw, 52px);
  line-height: 0.92;
  color: var(--white);
}

.page-news .annual__step-text {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--news-soft);
}

.page-news .annual__paths {
  padding: clamp(18px, 2.4vw, 26px);
  border: var(--bw) solid var(--night-2);
  background: rgba(26, 35, 80, 0.72);
}

.page-news .annual__paths-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-news .annual__path {
  display: block;
  padding: 14px 0;
  border-top: 1px solid var(--news-line);
  text-decoration: none;
  transition: padding-left 140ms var(--ease);
}

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

.page-news .annual__path:hover,
.page-news .annual__path:focus-visible {
  padding-left: 8px;
}

.page-news .annual__path-kicker {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--blue-lift);
}

.page-news .annual__path-text {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--news-soft);
}

/* ---------- 夜场过渡图 ---------- */

.page-news .news-vista {
  position: relative;
  overflow: hidden;
  background: var(--ink);
}

.page-news .news-vista__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  opacity: 0.68;
}

.page-news .news-vista::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 58%;
  background: linear-gradient(to top, rgba(6, 8, 15, 0.94), rgba(6, 8, 15, 0));
  pointer-events: none;
}

.page-news .news-vista__overlay {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 1;
  padding: 0 clamp(20px, 5vw, 56px) 26px;
}

.page-news .news-vista__caption {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--white);
}

/* ---------- 勘误与投稿 ---------- */

.page-news .errata__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-news .errata__levels {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .errata__level {
  padding: 20px 0;
  border-bottom: 1px solid var(--paper-2);
}

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

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

.page-news .errata__level p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted-ink);
}

.page-news .news-errata__note {
  padding: 6px 0 6px clamp(14px, 2vw, 20px);
  border-left: 3px solid var(--blue);
  background: transparent;
}

.page-news .news-errata__note-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted-ink);
}

.page-news .news-errata__note-body {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-news .news-errata__mail {
  padding: 2px 6px;
  background: var(--paper-2);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  word-break: break-all;
}

.page-news .news-errata__btn {
  display: inline-block;
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-news .series-item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-news .rev-item {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-news .annual__grid,
  .page-news .errata__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 980px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }

  .page-news .revision__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (max-width: 620px) {
  .page-news .obs-list {
    --obs-pad: 20px;
  }

  .page-news .obs-item__meta {
    gap: 8px;
  }

  .page-news .news-vista__img {
    aspect-ratio: 4 / 3;
  }

  .page-news .annual__step {
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .obs-item::before,
  .page-news .news-hero__index a,
  .page-news .annual__path {
    transition: none;
  }
}