.page-news {
  --news-gap: clamp(16px, 2.4vw, 26px);
  --news-flow-x: 34px;
  color: var(--silver);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
}

.page-news .news-hero__eyebrow {
  margin: 0 0 12px;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-news .news-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.16;
  font-size: clamp(1.9rem, 6vw, 3.4rem);
  color: var(--white);
  text-shadow: 0 0 18px rgba(53, 230, 210, 0.22);
}

.page-news .news-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
  line-height: 1.85;
  color: var(--silver);
}

.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-hero__stats .stat {
  background: var(--panel);
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-news .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.125rem, 2.6vw, 1.5rem);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

.page-news .stat__label {
  display: block;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 章节头 ---------- */
.page-news .section {
  margin-top: clamp(52px, 8vw, 96px);
  position: relative;
}

.page-news .section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num desc";
  column-gap: 14px;
  row-gap: 8px;
  align-items: baseline;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .section__num {
  grid-area: num;
  font-size: 0.8125rem;
  color: var(--cyan);
  padding-top: 0.4em;
}

.page-news .section__title {
  grid-area: title;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  font-size: clamp(1.375rem, 3.6vw, 2.125rem);
  color: var(--silver);
}

.page-news .section__desc {
  grid-area: desc;
  margin: 0;
  max-width: 66ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .section-tail {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-news a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
}

.page-news a:hover {
  color: var(--pulse);
  border-bottom-color: var(--pulse);
}

/* ---------- 要闻带 ---------- */
.page-news .news-lead {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-mid);
}

.page-news .news-lead__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.3;
}

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

.page-news .news-lead__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, var(--bg-mid) 4%, rgba(10, 16, 32, 0.55) 52%, rgba(5, 7, 15, 0.2) 100%);
}

.page-news .news-lead__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
}

.page-news .lead-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
  padding: clamp(18px, 2.6vw, 26px);
  background: rgba(10, 16, 32, 0.86);
  border: 1px solid var(--line);
  transition: border-color 180ms ease-out, background-color 180ms ease-out;
}

.page-news .lead-card:hover {
  border-color: var(--cyan-dim);
}

.page-news .lead-card--now {
  background: rgba(19, 28, 51, 0.94);
  border-color: var(--cyan-dim);
  box-shadow: inset 0 0 0 1px rgba(53, 230, 210, 0.12);
}

.page-news .lead-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.0625rem, 2.2vw, 1.375rem);
  line-height: 1.35;
  color: var(--white);
}

.page-news .lead-card--now .lead-card__title {
  color: var(--white);
  text-shadow: 0 0 16px rgba(53, 230, 210, 0.3);
}

.page-news .lead-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-news .lead-card__meta {
  margin-top: auto;
  font-size: 0.75rem;
  color: var(--mist);
  letter-spacing: 0.04em;
}

/* ---------- 筛选 ---------- */
.page-news .filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 2.6vw, 28px);
}

.page-news .filter__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--mist);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 180ms ease-out, color 180ms ease-out;
}

.page-news .filter__btn:hover {
  border-color: var(--cyan-dim);
  color: var(--silver);
}

.page-news .filter__btn[aria-pressed="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .filter__count {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--mist);
}

.page-news .filter__btn[aria-pressed="true"] .filter__count {
  color: var(--cyan);
}

.page-news .filter__empty {
  margin: 0;
  padding: 16px;
  border: 1px dashed var(--line);
  font-size: 0.875rem;
  color: var(--mist);
  display: none;
}

.page-news .filter__empty[data-visible="true"] {
  display: block;
}

/* ---------- 时间流 ---------- */
.page-news .feed {
  position: relative;
  padding-left: var(--news-flow-x);
}

.page-news .feed::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--line) 34%, var(--line) 100%);
}

.page-news .feed-item {
  position: relative;
  padding-bottom: var(--news-gap);
}

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

.page-news .feed-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--news-flow-x) + 3px);
  top: 12px;
  width: 9px;
  height: 9px;
  background: var(--bg-deep);
  border: 1px solid var(--cyan);
}

.page-news .feed-item[data-tag~="活动轮次"]::before {
  border-color: var(--nebula);
}

.page-news .feed-item[data-tag~="分类调整"]::before {
  border-color: var(--pulse);
}

.page-news .feed-item[data-tag~="旧版过渡"]::before {
  border-color: var(--signal);
}

.page-news .feed-item__body {
  padding: clamp(16px, 2.2vw, 22px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  transition: border-color 180ms ease-out, background-color 180ms ease-out;
}

.page-news .feed-item[data-tag~="活动轮次"] .feed-item__body {
  border-left-color: var(--nebula);
}

.page-news .feed-item[data-tag~="分类调整"] .feed-item__body {
  border-left-color: var(--pulse);
}

.page-news .feed-item[data-tag~="旧版过渡"] .feed-item__body {
  border-left-color: var(--signal);
}

.page-news .feed-item:hover .feed-item__body {
  border-color: var(--cyan-dim);
  border-left-color: var(--cyan);
}

.page-news .feed-item__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .feed-item__code {
  font-size: 0.75rem;
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-news .feed-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1rem, 2vw, 1.1875rem);
  line-height: 1.4;
  color: var(--white);
}

.page-news .feed-item__sum {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-news .feed-item__more {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.page-news .feed-item__more summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

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

.page-news .feed-item__more summary::before {
  content: "+ ";
}

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

.page-news .feed-item__more p {
  margin: 10px 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 图片容器 ---------- */
.page-news .fig {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-mid);
}

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

.page-news .fig--3x2 {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-news .fig--21x9 img {
  aspect-ratio: 21 / 9;
  height: 100%;
}

.page-news .fig--21x9 {
  margin-bottom: clamp(20px, 3vw, 30px);
}

/* ---------- 版本面板 ---------- */
.page-news .versions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .ver {
  background: var(--panel);
  padding: clamp(14px, 2vw, 20px);
  transition: background-color 180ms ease-out, box-shadow 180ms ease-out;
}

.page-news .ver:hover,
.page-news .ver:focus-within {
  background: var(--panel-hi);
  box-shadow: inset 2px 0 0 0 var(--cyan);
}

.page-news .ver__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 700;
  line-height: 1;
  color: var(--mist);
  margin-bottom: 10px;
}

.page-news .ver--now .ver__num {
  color: var(--cyan);
  text-shadow: 0 0 16px rgba(53, 230, 210, 0.35);
}

.page-news .ver__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--silver);
}

.page-news .ver--now .ver__title {
  color: var(--white);
}

.page-news .ver__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .ver__more {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 200ms ease-out;
}

.page-news .ver:hover .ver__more,
.page-news .ver:focus-within .ver__more {
  grid-template-rows: 1fr;
}

.page-news .ver__more > p {
  overflow: hidden;
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .ver:hover .ver__more > p,
.page-news .ver:focus-within .ver__more > p {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 轮次 ---------- */
.page-news .round-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-news .round-grid .stat {
  background: var(--panel);
  padding: 16px;
}

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

.page-news .round-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(16px, 2.2vw, 22px);
  background: var(--bg-mid);
  border-left: 2px solid var(--line);
}

.page-news .round-row--now {
  background: var(--panel);
  border-left-color: var(--cyan);
}

.page-news .round-row__state {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border: 1px solid var(--line);
  color: var(--mist);
  justify-self: start;
}

.page-news .round-row__state--done {
  color: var(--mist);
  border-color: var(--line);
}

.page-news .round-row__state--live {
  color: var(--cyan);
  border-color: var(--cyan-dim);
}

.page-news .round-row__state--next {
  color: var(--signal);
  border-color: rgba(255, 180, 84, 0.45);
}

.page-news .round-row__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--silver);
}

.page-news .round-row--now .round-row__title {
  color: var(--white);
}

.page-news .round-row__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 分类调整 ---------- */
.page-news .adjust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}

.page-news .adjust {
  padding: clamp(16px, 2.2vw, 22px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--pulse);
  transition: border-color 180ms ease-out, background-color 180ms ease-out;
}

.page-news .adjust:hover {
  background: var(--panel-hi);
  border-color: var(--cyan-dim);
  border-top-color: var(--cyan);
}

.page-news .adjust__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--pulse);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.page-news .adjust__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--silver);
}

.page-news .adjust__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 旧版过渡 ---------- */
.page-news .legacy {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-news .legacy__fig {
  margin: 0;
}

.page-news .legacy__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.125rem, 2.4vw, 1.5rem);
  line-height: 1.35;
  color: var(--white);
}

.page-news .legacy__text {
  margin: 0 0 14px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--silver);
}

.page-news .legacy__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .legacy__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  padding: 12px 14px;
  background: var(--bg-mid);
  font-size: 0.875rem;
  color: var(--silver);
}

.page-news .legacy__list .mono {
  font-size: 0.75rem;
  color: var(--signal);
  letter-spacing: 0.08em;
  min-width: 3.5em;
}

.page-news .legacy__tail {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 回看与跟进 ---------- */
.page-news .track-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}

.page-news .track {
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--bg-mid);
  border: 1px solid var(--line);
  position: relative;
}

.page-news .track::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42px;
  height: 42px;
  border-right: 1px solid var(--cyan-dim);
  border-bottom: 1px solid var(--cyan-dim);
  pointer-events: none;
}

.page-news .track__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-news .track__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--silver);
}

.page-news .track__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .starline {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .feed {
    padding-left: 44px;
  }

  .page-news .feed-item::before {
    left: -41px;
  }

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

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

  .page-news .round-row {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 16px;
  }

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

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: end;
  }

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

  .page-news .news-lead__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr) minmax(0, 1fr);
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .page-news .feed-item__body,
  .page-news .lead-card,
  .page-news .adjust,
  .page-news .ver,
  .page-news .filter__btn {
    transition: none;
  }

  .page-news .ver__more {
    transition: none;
  }
}