.page-news {
  --news-band: linear-gradient(90deg, var(--crimson) 0 20%, var(--indigo) 20% 40%, var(--gold) 40% 60%, var(--jade) 60% 80%, var(--ink) 80% 100%);
  --news-hair: rgba(183, 169, 154, 0.45);
  --news-hair-dark: rgba(183, 169, 154, 0.28);
  padding-bottom: 3rem;
  overflow-x: hidden;
}

/* ---------- 页头 ---------- */
.page-news .news-masthead {
  position: relative;
  margin-top: 1.25rem;
  padding: 2.25rem 0 1.75rem;
  border-bottom: 1px solid var(--line);
  background:
    repeating-linear-gradient(180deg, transparent 0 27px, rgba(183, 169, 154, 0.28) 27px 28px);
}

.page-news .news-masthead::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: var(--news-band);
}

.page-news .news-masthead__inner {
  position: relative;
}

.page-news .news-masthead__title {
  margin: 0.4rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.6rem, 11vw, 4.75rem);
  line-height: 0.96;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-news .news-masthead__lede {
  max-width: 46rem;
  margin: 1.1rem 0 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .news-masthead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  margin-top: 1.5rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--slate);
  text-transform: uppercase;
}

/* ---------- 主布局 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2.25rem;
}

/* 左侧分类 */
.page-news .news-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.65rem 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-rail__link {
  display: inline-block;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  font-size: 0.8125rem;
  color: var(--slate);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  color: var(--jade);
  border-color: var(--jade);
  background: var(--cream);
}

.page-news .news-rail__link.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cream);
}

.page-news .news-rail__gap {
  margin-top: 1.6rem;
}

/* 中间动态流 */
.page-news .stream-head {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--ink);
}

.page-news .stream-head__title {
  margin: 0.3rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.6rem, 5vw, 2.25rem);
  color: var(--ink);
}

.page-news .stream-search {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.page-news .stream-search .search-field {
  flex: 1 1 12rem;
  max-width: 100%;
}

.page-news .news-item {
  position: relative;
  padding: 1.4rem 0 1.4rem 1rem;
  border-bottom: 1px solid var(--news-hair);
  transition: background-color var(--dur) var(--ease);
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.4rem;
  width: 2px;
  height: 0;
  background: var(--crimson);
  transition: height var(--dur) var(--ease);
}

.page-news .news-item:hover,
.page-news .news-item:focus-within {
  background: var(--cream);
}

.page-news .news-item:hover::before,
.page-news .news-item:focus-within::before {
  height: calc(100% - 2.8rem);
}

.page-news .news-item__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.page-news .news-item__time {
  font-size: 0.75rem;
  color: var(--slate);
  letter-spacing: 0.04em;
}

.page-news .news-item__title {
  margin: 0.6rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.05rem, 3.6vw, 1.3rem);
  line-height: 1.45;
}

.page-news .news-item__title a {
  color: var(--ink);
  text-decoration: none;
  background-image: linear-gradient(var(--jade), var(--jade));
  background-size: 0 2px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news .news-item__title a:hover,
.page-news .news-item__title a:focus-visible {
  color: var(--crimson);
  background-size: 100% 2px;
}

.page-news .news-item__excerpt {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--slate);
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), margin-top var(--dur) var(--ease);
}

.page-news .news-item:hover .news-item__excerpt,
.page-news .news-item:focus-within .news-item__excerpt {
  max-height: 14rem;
  margin-top: 0.7rem;
  opacity: 1;
}

.page-news .stream-empty {
  margin: 1.5rem 0 0;
  font-size: 0.8125rem;
  color: var(--slate);
}

/* 右侧导出时间轴 */
.page-news .news-axis {
  position: relative;
  padding: 1.25rem 1.1rem 1.2rem;
  border: 1px solid var(--line);
  background: var(--cream);
}

.page-news .news-axis::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--news-band);
}

.page-news .news-axis__head {
  padding-top: 0.4rem;
  border-bottom: 1px solid var(--news-hair);
  padding-bottom: 0.75rem;
}

.page-news .news-axis__note {
  margin: 0.35rem 0 0;
  font-size: 0.8125rem;
  color: var(--slate);
}

.page-news .axis-list {
  position: relative;
  margin: 0.9rem 0 0;
  padding: 0 0 0 1rem;
  list-style: none;
}

.page-news .axis-list::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  bottom: 0.55rem;
  width: 1px;
  background: var(--line);
}

.page-news .axis-item {
  position: relative;
  padding: 0.5rem 0 0.6rem;
}

.page-news .axis-item::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 0.95rem;
  width: 7px;
  height: 7px;
  margin-left: -3px;
  background: var(--cream);
  border: 1px solid var(--ink);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .axis-item:hover::before {
  background: var(--jade);
  border-color: var(--jade);
}

.page-news .axis-item--live::before {
  background: var(--crimson);
  border-color: var(--crimson);
}

.page-news .axis-item__time {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--slate);
}

.page-news .axis-item__label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--ink);
}

.page-news .news-axis__foot {
  margin: 0.9rem 0 0;
  padding-top: 0.8rem;
  border-top: 1px solid var(--news-hair);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .news-axis__foot a,
.page-news .subscribe-aside__note a {
  color: var(--crimson);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-axis__foot a:hover,
.page-news .subscribe-aside__note a:hover {
  color: var(--jade);
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  margin-top: 3.5rem;
  padding: 2.75rem 0;
  background: var(--cream);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-series__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-news .news-series__lede {
  max-width: 40rem;
  margin: 0.9rem 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-news .series-list {
  margin: 1.75rem 0 1.75rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .series-list__item {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.page-news .series-list__no {
  font-size: 0.875rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  padding-top: 0.2rem;
}

.page-news .series-list__item h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.0625rem;
  color: var(--ink);
}

.page-news .series-list__item p {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .news-series__figure {
  align-self: start;
}

/* ---------- 版本更新 ---------- */
.page-news .news-version {
  padding: 2.75rem 0;
  background: var(--ink);
  color: var(--cream);
}

.page-news .section-head--inverse h2 {
  color: var(--cream);
}

.page-news .news-version .eyebrow {
  color: var(--gold);
}

.page-news .version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}

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

.page-news .ver-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--news-hair-dark);
}

.page-news .ver-item__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.page-news .ver-item__num {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-news .ver-item__time {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: rgba(247, 244, 239, 0.6);
}

.page-news .ver-item__desc {
  margin: 0.7rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(247, 244, 239, 0.86);
}

.page-news .ver-item__notes {
  margin: 0.75rem 0 0;
  padding: 0 0 0 1rem;
  list-style: none;
}

.page-news .ver-item__notes li {
  position: relative;
  padding: 0.25rem 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(247, 244, 239, 0.78);
}

.page-news .ver-item__notes li::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 0.9rem;
  width: 6px;
  height: 1px;
  background: var(--jade);
}

.page-news .ver-item__known {
  margin: 0.8rem 0 0;
  padding: 0.5rem 0.75rem;
  border-left: 2px solid var(--crimson);
  background: rgba(158, 43, 37, 0.16);
  font-size: 0.8125rem;
  line-height: 1.65;
  color: rgba(247, 244, 239, 0.82);
}

.page-news .version-foot {
  margin: 1.75rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--news-hair-dark);
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(247, 244, 239, 0.7);
}

.page-news .version-foot a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .version-foot a:hover {
  color: var(--jade);
}

/* ---------- 现场技巧 ---------- */
.page-news .news-tips {
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--line);
}

.page-news .news-tips__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
}

.page-news .news-tips__text p {
  margin: 0.9rem 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-news .news-tips__text h2 {
  margin: 0.35rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.6rem, 5vw, 2.25rem);
  color: var(--ink);
}

.page-news .tips-dl {
  margin: 1.5rem 0 1.75rem;
  border-top: 1px solid var(--line);
}

.page-news .tips-dl dt {
  padding-top: 0.9rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1rem;
  color: var(--crimson);
}

.page-news .tips-dl dd {
  margin: 0.3rem 0 0;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 资料库新入库 ---------- */
.page-news .news-library {
  padding: 2.75rem 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-news .library-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.page-news .library-col__title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 400;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.6rem;
}

.page-news .library-list {
  margin: 0.85rem 0 0;
  padding: 0;
  list-style: none;
}

.page-news .library-list li {
  display: flex;
  gap: 0.6rem;
  padding: 0.5rem 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-news .library-list span {
  flex: 0 0 2.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--jade);
  padding-top: 0.2rem;
}

.page-news .library-figure {
  align-self: start;
}

.page-news .library-foot {
  margin: 1.75rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 订阅 ---------- */
.page-news .news-subscribe {
  padding: 2.75rem 0 1rem;
}

.page-news .news-subscribe__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

.page-news .news-subscribe__text h2 {
  margin: 0.35rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  line-height: 1.25;
  color: var(--ink);
}

.page-news .news-subscribe__text p {
  max-width: 42rem;
  margin: 0.9rem 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-news .subscribe-list {
  margin: 1.4rem 0 1.75rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .subscribe-list li {
  position: relative;
  padding: 0.7rem 0 0.7rem 1.35rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-news .subscribe-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.25rem;
  width: 8px;
  height: 1px;
  background: var(--crimson);
}

.page-news .news-subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-news .subscribe-aside {
  padding: 1.5rem 1.35rem;
  border: 1px solid var(--line);
  background: var(--cream);
  position: relative;
}

.page-news .subscribe-aside::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--news-band);
}

.page-news .subscribe-aside__label {
  margin: 0.5rem 0 0;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-news .subscribe-aside__big {
  margin: 0.15rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 2.75rem;
  line-height: 1;
  color: var(--crimson);
}

.page-news .subscribe-aside__unit {
  margin: 0.25rem 0 0;
  font-size: 0.8125rem;
  color: var(--slate);
}

.page-news .subscribe-aside .rule {
  margin: 1.1rem 0 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.page-news .subscribe-aside__note {
  margin: 1.1rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .stream-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .page-news .stream-search {
    flex: 0 1 20rem;
    justify-content: flex-end;
  }

  .page-news .library-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem 2rem;
  }

  .page-news .library-figure {
    grid-column: 1 / -1;
  }

  .page-news .news-rail__list {
    gap: 0.5rem;
  }
}

@media (min-width: 900px) {
  .page-news .news-series__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 2.75rem;
    align-items: start;
  }

  .page-news .news-tips__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 2.75rem;
  }

  .page-news .news-subscribe__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 2.75rem;
  }

  .page-news .version-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: 2.5rem;
  }
}

@media (min-width: 1000px) {
  .page-news .news-layout {
    grid-template-columns: 11rem minmax(0, 1fr) 15rem;
    gap: 2rem;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 1.5rem;
  }

  .page-news .news-rail__list {
    display: block;
  }

  .page-news .news-rail__link {
    display: block;
    border-color: transparent;
    border-bottom-color: var(--line);
    padding: 0.55rem 0.6rem;
  }

  .page-news .news-rail__link.is-active {
    border-color: var(--ink);
  }

  .page-news .news-axis {
    position: sticky;
    top: 1.5rem;
  }

  .page-news .news-item__excerpt {
    max-height: 0;
  }

  .page-news .library-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(0, 1.15fr);
  }

  .page-news .library-figure {
    grid-column: auto;
  }
}

@media (min-width: 1180px) {
  .page-news .news-layout {
    grid-template-columns: 12rem minmax(0, 1fr) 17rem;
    gap: 2.75rem;
  }

  .page-news .news-series__inner {
    gap: 3.5rem;
  }
}

@media (hover: none) {
  .page-news .news-item__excerpt {
    max-height: none;
    margin-top: 0.6rem;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item::before,
  .page-news .news-item__excerpt,
  .page-news .news-item__title a,
  .page-news .news-rail__link,
  .page-news .axis-item::before {
    transition: none;
  }
}