.page-news {
  --news-rail-w: 224px;
  --news-col-gap: clamp(28px, 4vw, 64px);
  --news-row-gap: clamp(34px, 4.4vw, 68px);
  --c-maintenance: var(--orange);
  --c-version: var(--cyan);
  --c-column: var(--violet);
  --c-topic: var(--rose);
  position: relative;
  overflow-x: clip;
  background: var(--ink-navy);
  color: var(--cream);
  padding-bottom: var(--gutter-y);
}

/* ---------- 顶部上下文条 ---------- */
.page-news .news-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: clamp(22px, 3vw, 40px);
}

.page-news .news-status {
  margin: 0;
  color: var(--mist);
  font-size: 13px;
  letter-spacing: .06em;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(38px, 5.4vw, 84px) 0 clamp(34px, 4.4vw, 62px);
  isolation: isolate;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: -46px;
  left: -16vw;
  right: -22vw;
  bottom: 12%;
  z-index: -1;
  border-radius: 0 0 44px 0;
  background:
    linear-gradient(118deg, var(--indigo-deep) 0%, rgba(168, 85, 247, .34) 62%, rgba(255, 77, 141, .22) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 74% 100%, 0 86%);
  pointer-events: none;
}

.page-news .news-hero h1 {
  margin: 14px 0 0;
  max-width: 20em;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.6vw, 4.1rem);
  line-height: 1.16;
  letter-spacing: .05em;
  color: var(--cream);
}

.page-news .news-hero .lead {
  margin-top: 20px;
  max-width: 660px;
  color: rgba(243, 237, 225, .82);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-top: 28px;
}

.page-news .news-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: clamp(30px, 4vw, 52px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-figures li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 4px 14px 16px;
  border-left: 2px solid var(--line-strong);
}

.page-news .news-figures__num {
  font-size: 22px;
  color: var(--cyan);
  letter-spacing: .04em;
}

.page-news .news-figures__label {
  font-size: 13px;
  color: var(--mist);
  letter-spacing: .06em;
}

.page-news .news-hero .eyebrow {
  margin: 0;
}

/* ---------- 主体骨架 ---------- */
.page-news .news-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-row-gap);
  padding-top: clamp(30px, 4vw, 56px);
}

.page-news .news-stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-row-gap);
  min-width: 0;
}

/* ---------- 左侧索引 ---------- */
.page-news .news-rail {
  min-width: 0;
}

.page-news .news-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .news-rail__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 2px 2px 10px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  min-width: max-content;
  border: 1px solid var(--line);
  border-left: 4px solid var(--c-version);
  border-radius: var(--r-sm);
  background: rgba(27, 38, 80, .72);
  color: var(--cream);
  font-size: 15px;
  text-decoration: none;
  transition: transform .18s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-news .news-rail__link--maintenance { border-left-color: var(--c-maintenance); }
.page-news .news-rail__link--version { border-left-color: var(--c-version); }
.page-news .news-rail__link--column { border-left-color: var(--c-column); }
.page-news .news-rail__link--topic { border-left-color: var(--c-topic); }

.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  transform: translateY(-4px);
  background: rgba(49, 225, 210, .12);
  border-color: rgba(49, 225, 210, .42);
}

.page-news .news-rail__count {
  font-size: 13px;
  color: var(--cyan);
}

.page-news .news-rail__foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.page-news .news-rail__cta {
  display: inline-block;
  color: var(--orange);
  font-size: 14px;
  line-height: 1.7;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-news .news-rail__cta:hover,
.page-news .news-rail__cta:focus-visible {
  border-bottom-color: var(--orange);
}

/* ---------- 区块通用 ---------- */
.page-news .news-block {
  min-width: 0;
  padding-top: clamp(28px, 3.6vw, 48px);
  border-top: 1px solid var(--line);
}

.page-news .news-block--last {
  padding-bottom: 8px;
}

.page-news .news-block .section-head .lead {
  margin-top: 14px;
  max-width: 680px;
  color: rgba(243, 237, 225, .78);
}

.page-news .news-block .media {
  margin: clamp(24px, 3vw, 38px) 0 0;
}

.page-news .news-block .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-card);
  object-fit: cover;
  background: var(--indigo-deep);
}

.page-news .media__figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--mist);
  letter-spacing: .03em;
}

/* ---------- 维护记录列表 ---------- */
.page-news .log-list,
.page-news .log-more__list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-news .log-item {
  padding: 22px 24px 22px 28px;
  border-radius: var(--r-card);
  border-left: 4px solid var(--c-maintenance);
  background: var(--cream);
  color: var(--charcoal);
  box-shadow: 0 14px 32px rgba(6, 10, 26, .3);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-news .log-item--maintenance { border-left-color: var(--c-maintenance); }

.page-news .log-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(6, 10, 26, .42);
}

.page-news .log-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .log-item__no {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--charcoal);
  background: rgba(36, 30, 25, .08);
  border-radius: var(--r-pill);
  padding: 3px 12px;
}

.page-news .log-item__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.08rem, 1.5vw, 1.32rem);
  letter-spacing: .04em;
  color: var(--charcoal);
}

.page-news .log-item__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(36, 30, 25, .82);
}

.page-news .log-item__impact {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(36, 30, 25, .18);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(36, 30, 25, .7);
}

/* 折叠更早记录 */
.page-news .log-more {
  margin-top: 22px;
}

.page-news .log-more__summary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid rgba(49, 225, 210, .4);
  border-radius: var(--r-pill);
  background: rgba(49, 225, 210, .07);
  color: var(--cyan);
  font-size: 14px;
  letter-spacing: .04em;
  cursor: pointer;
  list-style: none;
  transition: background-color .16s var(--ease), border-color .16s var(--ease), color .16s var(--ease);
}

.page-news .log-more__summary::-webkit-details-marker { display: none; }

.page-news .log-more__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
}

.page-news .log-more__summary:hover,
.page-news .log-more__summary:focus-visible {
  background: rgba(49, 225, 210, .16);
}

.page-news .log-more[open] .log-more__summary {
  color: var(--orange);
  border-color: rgba(255, 138, 60, .5);
  background: rgba(255, 138, 60, .09);
}

.page-news .log-more[open] .log-more__summary::after { content: "–"; }

.page-news .log-more__list > li {
  padding: 18px 20px 18px 24px;
  border-left: 4px solid var(--c-column);
  border-radius: var(--r-sm);
  background: rgba(27, 38, 80, .74);
}

.page-news .log-more__list .log-item__no {
  color: var(--cream);
  background: rgba(243, 237, 225, .1);
}

.page-news .log-more__title {
  margin: 10px 0 6px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: .04em;
  color: var(--cream);
}

.page-news .log-more__list .log-item__text {
  color: rgba(243, 237, 225, .76);
  font-size: 15px;
}

/* ---------- 版本对照 ---------- */
.page-news .version-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin-top: 30px;
}

.page-news .version-col {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: linear-gradient(160deg, rgba(27, 38, 80, .92), rgba(15, 22, 49, .92));
}

.page-news .version-col--new {
  border-color: rgba(49, 225, 210, .42);
  background: linear-gradient(160deg, rgba(27, 38, 80, .96), rgba(168, 85, 247, .18));
}

.page-news .version-col__meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-news .version-col__no {
  margin: 8px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: .08em;
  color: var(--cream);
}

.page-news .version-col--new .version-col__no { color: var(--cyan); }

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

.page-news .vspec__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .vspec__row dt {
  font-size: 14px;
  color: var(--mist);
}

.page-news .vspec__row dd {
  margin: 0;
  font-size: 15px;
  color: var(--cream);
}

.page-news .version-col__note {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(243, 237, 225, .74);
}

.page-news .version-arrow {
  display: flex;
  justify-content: center;
  color: rgba(155, 166, 200, .6);
  transform: rotate(90deg);
  transition: color .18s var(--ease);
}

.page-news .version-pair:hover .version-arrow {
  color: var(--orange);
}

.page-news .ver-timeline {
  margin: 30px 0 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid var(--line-strong);
  display: grid;
  gap: 18px;
}

.page-news .ver-timeline li {
  position: relative;
  display: grid;
  gap: 6px;
}

.page-news .ver-timeline li::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(49, 225, 210, .18);
}

.page-news .ver-timeline__no {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-news .ver-timeline p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(243, 237, 225, .78);
}

/* ---------- 栏目调整 ---------- */
.page-news .column-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  margin-top: 28px;
  align-items: start;
}

.page-news .column-board {
  margin: 0;
}

.page-news .column-board img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-card);
  object-fit: cover;
}

.page-news .column-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-news .column-list > li {
  padding: 18px 0 18px 20px;
  border-left: 3px solid var(--c-column);
  border-top: 1px solid var(--line-soft);
}

.page-news .column-list > li:first-child { border-top: none; }

.page-news .column-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.04rem;
  letter-spacing: .04em;
  color: var(--cream);
}

.page-news .column-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(243, 237, 225, .76);
}

/* ---------- 专题拼贴 ---------- */
.page-news .topic-subhead {
  margin: clamp(34px, 4vw, 56px) 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  letter-spacing: .06em;
  color: var(--cream);
}

.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.page-news .topic-card {
  position: relative;
  overflow: hidden;
  padding: 22px 22px 24px;
  border-radius: var(--r-card);
  background: var(--cream);
  color: var(--charcoal);
  transition: transform .2s var(--ease);
}

.page-news .topic-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--violet), var(--rose));
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.page-news .topic-card:hover {
  transform: translateY(-4px);
}

.page-news .topic-card h4 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 1.08rem;
  letter-spacing: .04em;
  color: var(--charcoal);
}

.page-news .topic-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(36, 30, 25, .78);
}

.page-news .topic-media {
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-card);
}

.page-news .topic-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.page-news .topic-media .media__figcaption {
  padding: 10px 0 0;
}

/* ---------- 更新节奏 ---------- */
.page-news .rhythm-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.page-news .rhythm-card {
  padding: 24px 22px;
  border-radius: var(--r-card);
  border: 1px solid var(--line);
  background: rgba(27, 38, 80, .66);
  border-top: 4px solid var(--cyan);
}

.page-news .rhythm-card--a { border-top-color: var(--c-version); }
.page-news .rhythm-card--b { border-top-color: var(--c-maintenance); }
.page-news .rhythm-card--c { border-top-color: var(--c-topic); }

.page-news .rhythm-card__num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-news .rhythm-card h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 1.06rem;
  letter-spacing: .04em;
  color: var(--cream);
}

.page-news .rhythm-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(243, 237, 225, .76);
}

.page-news .revisit {
  margin-top: clamp(30px, 4vw, 52px);
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-news .revisit__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: .06em;
  color: var(--cream);
}

.page-news .revisit__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-news .revisit__link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(15, 22, 49, .6);
  color: var(--cream);
  text-decoration: none;
  transition: transform .18s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-news .revisit__link:hover,
.page-news .revisit__link:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(255, 138, 60, .5);
  background: rgba(255, 138, 60, .08);
}

.page-news .revisit__label {
  font-size: 16px;
  color: var(--cream);
}

.page-news .revisit__desc {
  font-size: 14px;
  color: var(--mist);
  line-height: 1.6;
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-news .news-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-news .version-pair {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: 18px;
  }

  .page-news .version-arrow {
    transform: none;
  }

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

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

  .page-news .topic-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-auto-rows: minmax(150px, auto);
  }

  .page-news .topic-card--columns {
    grid-column: 1 / 4;
    grid-row: 1;
  }

  .page-news .topic-media {
    grid-column: 4 / 7;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
  }

  .page-news .topic-card--a {
    grid-column: 1 / 3;
    grid-row: 2;
  }

  .page-news .topic-card--b {
    grid-column: 3 / 4;
    grid-row: 2;
  }

  .page-news .topic-card--c {
    grid-column: 1 / 7;
    grid-row: 3;
  }
}

/* ---------- 宽屏：左侧固定索引 ---------- */
@media (min-width: 1040px) {
  .page-news .news-body {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: var(--news-col-gap);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 96px;
    align-self: start;
    padding-right: 18px;
    border-right: 1px solid var(--line-soft);
  }

  .page-news .news-rail__list {
    flex-direction: column;
    overflow: visible;
    gap: 8px;
    padding-bottom: 0;
  }

  .page-news .news-rail__link {
    width: 100%;
    min-width: 0;
    justify-content: space-between;
  }

  .page-news .column-wrap {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(28px, 3.4vw, 56px);
  }

  .page-news .log-list {
    gap: 16px;
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .log-item,
  .page-news .topic-card,
  .page-news .news-rail__link,
  .page-news .revisit__link {
    transition: none;
  }

  .page-news .log-item:hover,
  .page-news .topic-card:hover,
  .page-news .news-rail__link:hover,
  .page-news .revisit__link:hover {
    transform: none;
  }
}