.page-news {
  --news-rule: rgba(140, 242, 230, .18);
  --news-rule-soft: rgba(140, 242, 230, .08);
  --news-dash: rgba(140, 242, 230, .3);
  --news-panel: rgba(18, 64, 95, .34);
  background: var(--deep);
  color: var(--on-deep);
  overflow-x: hidden;
}

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

/* ---------- 刊头 ---------- */
.page-news .news-mast {
  position: relative;
  padding: clamp(30px, 6vw, 68px) 0 clamp(36px, 6vw, 76px);
  border-bottom: 1px solid var(--news-rule);
  background:
    radial-gradient(900px 380px at 50% -12%, rgba(33, 230, 214, .18), transparent 62%),
    linear-gradient(180deg, var(--abyss) 0%, var(--deep) 100%);
}

.page-news .news-mast::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--news-rule-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--news-rule-soft) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(72% 66% at 50% 28%, #000 0%, transparent 78%);
  mask-image: radial-gradient(72% 66% at 50% 28%, #000 0%, transparent 78%);
  pointer-events: none;
}

.page-news .news-mast > .shell {
  z-index: 1;
}

.page-news .news-mast__inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.page-news .news-mast__crumbs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--on-deep-dim);
}

.page-news .news-mast__crumbs a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast);
}

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

.page-news .news-mast__crumbs .breadcrumbs__sep {
  color: rgba(140, 242, 230, .4);
}

.page-news .news-mast__crumbs .breadcrumbs__current {
  color: var(--on-deep);
}

.page-news .news-mast__issue {
  margin: 0 0 16px;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.page-news .news-mast__title {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-size: clamp(32px, 7.6vw, 66px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-news .news-mast__lede {
  margin: 0 auto;
  max-width: 58ch;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.8;
  color: var(--on-deep);
}

.page-news .news-mast__fig {
  position: relative;
  z-index: 1;
  margin: clamp(26px, 5vw, 44px) 0 0;
  width: 100%;
  height: clamp(132px, 26vw, 224px);
  overflow: hidden;
  background: var(--abyss);
  -webkit-clip-path: polygon(0 0, 100% 7%, 100% 100%, 0 93%);
  clip-path: polygon(0 0, 100% 7%, 100% 100%, 0 93%);
}

.page-news .news-mast__fig img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  opacity: .82;
}

/* ---------- 栏目索引 ---------- */
.page-news .news-desks {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(30px, 5vw, 52px);
}

.page-news .news-desk {
  position: relative;
  padding: 20px 20px 22px;
  border: 1px solid var(--news-rule);
  border-radius: var(--radius);
  background: rgba(4, 18, 31, .52);
}

.page-news .news-desk::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(.24);
  transform-origin: left center;
  transition: transform var(--t-base);
}

.page-news .news-desk:hover::after,
.page-news .news-desk:focus-within::after {
  transform: scaleX(1);
}

.page-news .news-desk__num {
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--cyan);
}

.page-news .news-desk__name {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: clamp(20px, 3.6vw, 26px);
  line-height: 1.2;
  color: var(--paper);
}

.page-news .news-desk__desc {
  margin: 0 0 14px;
  max-width: 38ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--on-deep-dim);
}

.page-news .news-desk__cadence {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber);
}

/* ---------- 本期专题 ---------- */
.page-news .news-feature {
  padding: clamp(46px, 8vw, 88px) 0;
}

.page-news .news-feature__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-news .news-feature__title {
  margin: 8px 0 16px;
  font-family: var(--font-head);
  font-size: clamp(26px, 5vw, 42px);
  line-height: 1.16;
  color: var(--paper);
}

.page-news .news-feature__lede {
  margin: 0 0 24px;
  max-width: 54ch;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.8;
  color: var(--on-deep);
}

.page-news .news-feature__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.page-news .news-feature .tab {
  appearance: none;
  -webkit-appearance: none;
  padding: 9px 18px;
  border: 1px solid var(--news-rule);
  border-radius: 999px;
  background: rgba(18, 64, 95, .42);
  color: var(--on-deep);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .06em;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}

.page-news .news-feature .tab:hover {
  border-color: var(--cyan-soft);
}

.page-news .news-feature .tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--abyss);
  font-weight: 600;
}

.page-news .news-feature .tab-panel {
  display: block;
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
}

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

.page-news .panel-heading {
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan-soft);
}

.page-news .panel-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-news .panel-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--on-deep);
}

.page-news .panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

.page-news .news-feature__more {
  margin-top: 22px;
}

.page-news .accordion__trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 13px 17px;
  border: 1px solid var(--news-rule);
  border-radius: var(--radius);
  background: rgba(4, 18, 31, .4);
  color: var(--on-deep);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .06em;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-news .accordion__trigger:hover {
  border-color: var(--cyan-soft);
}

.page-news .accordion__trigger[aria-expanded="true"] {
  border-left: 3px solid var(--cyan);
  color: var(--cyan-soft);
}

.page-news .accordion__panel {
  padding: 16px 18px 4px;
  border-left: 3px solid var(--cyan);
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-deep);
}

.page-news .accordion__panel p {
  margin: 0 0 12px;
  max-width: 66ch;
}

.page-news .news-feature__fig {
  margin: 0;
  border: 1px solid var(--news-rule);
  border-radius: var(--radius);
  background: var(--abyss);
  overflow: hidden;
}

.page-news .news-feature__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-news .news-feature__fig .media-frame__caption {
  padding: 10px 14px 12px;
  border-top: 1px dashed var(--news-dash);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--on-deep-dim);
}

/* ---------- 最新条目 ---------- */
.page-news .news-latest {
  --news-dash: rgba(85, 99, 110, .42);
  padding: clamp(46px, 8vw, 88px) 0;
  background: var(--paper);
  color: var(--ink);
}

.page-news .news-latest .kicker {
  color: var(--clay);
}

.page-news .news-latest__head {
  max-width: 64ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .news-latest__title {
  margin: 8px 0 12px;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.18;
  color: var(--ink);
}

.page-news .news-latest__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

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

.page-news .news-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--news-dash);
  transition: transform var(--t-base), background var(--t-fast);
}

.page-news .news-item:first-child {
  border-top: 1px dashed var(--news-dash);
}

.page-news .news-item__desk {
  display: inline-block;
  align-self: start;
  padding: 3px 10px;
  border: 1px solid rgba(85, 99, 110, .45);
  border-radius: 999px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--rock);
  white-space: nowrap;
}

.page-news .news-item__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: clamp(17px, 2.9vw, 21px);
  line-height: 1.35;
  color: var(--ink);
}

.page-news .news-item__sum {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--rock);
}

.page-news .news-item__meta {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
  white-space: nowrap;
}

.page-news .news-item__read {
  color: var(--clay);
}

.page-news .news-item__thumb {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  filter: saturate(.85);
}

/* ---------- 版本时间轴 ---------- */
.page-news .news-timeline {
  padding: clamp(46px, 8vw, 88px) 0;
  border-top: 1px solid var(--news-rule);
  border-bottom: 1px solid var(--news-rule);
  background: linear-gradient(180deg, var(--deep) 0%, var(--abyss) 100%);
}

.page-news .news-timeline__title {
  margin: 8px 0 12px;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.18;
  color: var(--paper);
}

.page-news .news-timeline__lede {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--on-deep-dim);
}

.page-news .tt-rail {
  display: flex;
  gap: 18px;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-news .tt-rail::-webkit-scrollbar {
  display: none;
}

.page-news .tt-node {
  position: relative;
  flex: 0 0 clamp(216px, 68vw, 262px);
  scroll-snap-align: start;
  padding: 26px 14px 6px 0;
  border-top: 2px solid var(--news-rule);
  transition: border-color var(--t-base);
}

.page-news .tt-node::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--abyss);
  border: 2px solid var(--cyan-soft);
  transition: background var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}

.page-news .tt-node:hover,
.page-news .tt-node:focus-within {
  border-top-color: var(--amber-soft);
}

.page-news .tt-node:hover::before,
.page-news .tt-node:focus-within::before {
  background: var(--amber);
  border-color: var(--amber);
  box-shadow: 0 0 0 5px rgba(255, 122, 47, .18);
}

.page-news .tt-node__ver {
  margin: 0 0 4px;
  font-family: var(--font-data);
  font-size: 22px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-news .tt-node__stage {
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--rock);
}

.page-news .tt-node__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .tt-node__title:focus {
  outline: none;
}

.page-news .tt-node__note {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--on-deep-dim);
  transition: max-height var(--t-base), opacity var(--t-base), margin var(--t-base);
}

.page-news .tt-node:hover .tt-node__note,
.page-news .tt-node:focus-within .tt-node__note {
  max-height: 132px;
  margin-top: 8px;
  opacity: 1;
}

.page-news .news-timeline__fig {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border: 1px solid var(--news-rule);
  border-radius: var(--radius);
  background: var(--abyss);
  overflow: hidden;
}

.page-news .news-timeline__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 5;
  object-fit: cover;
  opacity: .9;
}

/* ---------- 持续追更 ---------- */
.page-news .news-sub {
  padding: clamp(46px, 8vw, 88px) 0 clamp(56px, 9vw, 100px);
}

.page-news .news-sub__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
}

.page-news .news-sub__title {
  margin: 8px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.18;
  color: var(--paper);
}

.page-news .news-sub__text {
  margin: 0 0 16px;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-deep);
}

.page-news .news-sub__cadence {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--amber-soft);
}

.page-news .news-sub__cadence .mono {
  color: var(--cyan);
}

.page-news .news-way {
  margin-bottom: 16px;
  padding: 20px 22px 20px;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--news-panel);
}

.page-news .news-way:last-of-type {
  border-left-color: var(--amber);
}

.page-news .news-way__num {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan-soft);
}

.page-news .news-way__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: clamp(18px, 3vw, 22px);
  line-height: 1.3;
  color: var(--paper);
}

.page-news .news-way__text {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--on-deep-dim);
}

.page-news .news-sub__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .news-desks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-news .news-item {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 8px 20px;
    align-items: baseline;
  }

  .page-news .news-item__meta {
    grid-column: 2;
  }
}

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

  .page-news .news-sub__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-news .news-item {
    grid-template-columns: 128px minmax(0, 1fr) 176px;
    gap: 8px 24px;
    padding: 22px 0;
  }

  .page-news .news-item__meta {
    grid-column: 3;
    text-align: right;
  }

  .page-news .news-item--lead {
    grid-template-columns: 220px minmax(0, 1fr);
    grid-template-areas:
      "thumb desk"
      "thumb body"
      "thumb meta";
    gap: 6px 26px;
    align-items: start;
  }

  .page-news .news-item--lead .news-item__thumb {
    grid-area: thumb;
  }

  .page-news .news-item--lead .news-item__desk {
    grid-area: desk;
    justify-self: start;
  }

  .page-news .news-item--lead .news-item__body {
    grid-area: body;
  }

  .page-news .news-item--lead .news-item__meta {
    grid-area: meta;
    grid-column: auto;
    text-align: left;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-news .news-item:hover {
    transform: translateY(-3px);
    background: rgba(14, 26, 34, .045);
  }

  .page-news .news-item__read {
    display: inline-block;
    max-width: 0;
    opacity: 0;
    overflow: hidden;
    white-space: nowrap;
    vertical-align: bottom;
    transition: max-width var(--t-base), opacity var(--t-fast);
  }

  .page-news .news-item:hover .news-item__read,
  .page-news .news-item:focus-within .news-item__read {
    max-width: 8em;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-desk::after,
  .page-news .news-item,
  .page-news .news-item__read,
  .page-news .tt-node,
  .page-news .tt-node::before,
  .page-news .tt-node__note,
  .page-news .accordion__trigger {
    transition-duration: .01ms;
  }

  .page-news .news-item:hover {
    transform: none;
  }
}