/* ============ 更新记录页 · 页面作用域 ============ */
.page-news {
  --nt-stamp-w: 108px;
  --nt-rule: 1px solid rgba(220, 229, 223, .16);
  --nt-rule-light: 1px solid rgba(10, 46, 39, .14);
  --nt-dim: rgba(220, 229, 223, .62);
  --nt-dim-2: rgba(220, 229, 223, .78);
  background: var(--pitch-950);
  color: var(--paper-50);
}

/* ---------- 面包屑 ---------- */
.page-news .nt-crumbs {
  padding: clamp(16px, 3vw, 26px) 0 0;
  font-size: 12.5px;
}
.page-news .nt-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .nt-crumbs .breadcrumbs__item {
  color: var(--nt-dim);
}
.page-news .nt-crumbs .breadcrumbs__item[aria-current="page"] {
  color: var(--paper-50);
}
.page-news .nt-crumbs a {
  color: var(--cyan-400);
  text-decoration: none;
}
.page-news .nt-crumbs a:hover {
  text-decoration: underline;
}
.page-news .nt-crumbs .breadcrumbs__sep {
  color: rgba(220, 229, 223, .34);
}

/* ---------- 首屏 ---------- */
.page-news .nt-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px, 4.5vw, 56px) 0 clamp(34px, 5vw, 72px);
}
.page-news .nt-hero::before {
  content: "";
  position: absolute;
  inset: -16% -8% auto auto;
  width: min(780px, 94vw);
  height: min(780px, 94vw);
  background: radial-gradient(circle at 58% 38%, rgba(59, 240, 206, .18), rgba(59, 240, 206, 0) 62%);
  pointer-events: none;
  z-index: -2;
}
.page-news .nt-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(220, 229, 223, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220, 229, 223, .055) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0) 78%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0) 78%);
  pointer-events: none;
  z-index: -1;
}
.page-news .nt-hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: start;
}
.page-news .nt-hero__title {
  margin: 14px 0 0;
  font-size: clamp(31px, 6.2vw, 64px);
  line-height: 1.06;
  letter-spacing: -.015em;
}
.page-news .nt-hero__lede {
  max-width: 46ch;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--nt-dim-2);
}

.page-news .nt-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 1px;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  background: rgba(220, 229, 223, .18);
  border: 1px solid rgba(220, 229, 223, .18);
}
.page-news .nt-metrics__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 18px 16px;
  background: var(--pitch-950);
}
.page-news .nt-metrics__item .metric__num {
  font-family: var(--font-mono);
  font-size: clamp(32px, 5.3vw, 56px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan-400);
  font-variant-numeric: tabular-nums;
}
.page-news .nt-metrics__item:nth-child(2) .metric__num {
  color: var(--paper-50);
}
.page-news .nt-metrics__item:nth-child(3) .metric__num {
  color: var(--amber-500);
}
.page-news .nt-metrics__item .metric__label {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--nt-dim);
}

.page-news .nt-hero__visual {
  margin: 0;
}
.page-news .nt-hero__frame {
  position: relative;
  aspect-ratio: 1000 / 520;
  overflow: hidden;
  border: 1px solid rgba(59, 240, 206, .32);
  border-radius: 0;
  background:
    linear-gradient(150deg, rgba(10, 46, 39, .92), rgba(4, 26, 22, .92));
}
.page-news .nt-hero__frame .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-news .nt-hero .media__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(220, 229, 223, .55);
}

/* ---------- 粘性筛选 ---------- */
.page-news .nt-filters {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 16px 0 18px;
  background: rgba(10, 46, 39, .96);
  border-top: 1px solid rgba(220, 229, 223, .18);
  border-bottom: 1px solid rgba(220, 229, 223, .18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.page-news .nt-filters__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
}
.page-news .nt-filters__title {
  margin: 0;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--paper-50);
}
.page-news .nt-filters__hit {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  margin: 0;
  font-size: 12.5px;
  color: var(--nt-dim);
}
.page-news .nt-filters__hit-num {
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--amber-500);
  font-variant-numeric: tabular-nums;
}
.page-news .nt-filters__groups {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}
.page-news .nt-filter__label {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(220, 229, 223, .48);
}
.page-news .nt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .nt-chip {
  appearance: none;
  border: 1px solid rgba(220, 229, 223, .28);
  border-radius: 0;
  background: transparent;
  color: rgba(220, 229, 223, .82);
  font: inherit;
  font-size: 12.5px;
  line-height: 1;
  padding: 8px 12px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-news .nt-chip:hover {
  border-color: var(--cyan-400);
  color: var(--cyan-200);
}
.page-news .nt-chip.is-active {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
  color: var(--pitch-950);
  font-weight: 700;
}
.page-news .nt-chip:focus-visible {
  outline: 2px solid var(--amber-500);
  outline-offset: 2px;
}

.page-news .nt-rail {
  margin-top: 22px;
}
.page-news .nt-rail__nodes {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .nt-rail__nodes::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 6px;
  height: 1px;
  background: rgba(220, 229, 223, .2);
}
.page-news .nt-rail__node {
  position: relative;
  padding-top: 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: rgba(220, 229, 223, .45);
  font-variant-numeric: tabular-nums;
}
.page-news .nt-rail__node::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 13px;
  background: rgba(220, 229, 223, .28);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.page-news .nt-rail__node.is-lit::before {
  background: var(--cyan-400);
  box-shadow: 0 0 0 3px rgba(59, 240, 206, .14);
}
.page-news .nt-rail__node.is-active {
  color: var(--amber-500);
}
.page-news .nt-rail__node.is-active::before {
  background: var(--amber-500);
  box-shadow: none;
}

/* ---------- 阶段横幅 ---------- */
.page-news .nt-band-figure {
  margin: 0;
  padding: clamp(26px, 4vw, 44px) 0 0;
}
.page-news .nt-band-figure__frame {
  aspect-ratio: 900 / 360;
  overflow: hidden;
  border: 1px solid rgba(220, 229, 223, .16);
  background: var(--pitch-800);
}
.page-news .nt-band-figure__frame .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-news .nt-band-figure .media__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(220, 229, 223, .55);
}

/* ---------- 记录流 ---------- */
.page-news .nt-log {
  padding: clamp(40px, 6vw, 80px) 0 clamp(32px, 5vw, 60px);
}
.page-news .nt-log__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 20px;
  padding-bottom: 16px;
  border-bottom: var(--nt-rule);
}
.page-news .nt-log__intro {
  max-width: 62ch;
  margin: 20px 0 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--nt-dim-2);
}
.page-news .nt-log__list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .nt-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 22px 0 22px 16px;
  border-bottom: var(--nt-rule);
}
.page-news .nt-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  background: var(--amber-500);
  opacity: 0;
  transform: scaleY(.5);
  transform-origin: top center;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-news .nt-item:hover::before,
.page-news .nt-item:focus-within::before {
  opacity: 1;
  transform: scaleY(1);
}
.page-news .nt-item__stamp {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  font-variant-numeric: tabular-nums;
}
.page-news .nt-item__time {
  color: var(--nt-dim);
}
.page-news .nt-item__ver {
  color: var(--cyan-400);
}
.page-news .nt-item__body {
  min-width: 0;
}
.page-news .nt-item__title {
  margin: 0;
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: .005em;
  color: var(--paper-50);
}
.page-news .nt-item__desc {
  max-width: 62ch;
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--nt-dim-2);
}
.page-news .nt-item__desc a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-decoration-color: rgba(59, 240, 206, .4);
  text-underline-offset: 3px;
}
.page-news .nt-item__desc a:hover {
  color: var(--cyan-200);
}

.page-news .nt-item__more {
  margin-top: 14px;
  border-top: 1px dashed rgba(220, 229, 223, .18);
}
.page-news .nt-item__summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 0 6px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--cyan-400);
  cursor: pointer;
  list-style: none;
}
.page-news .nt-item__summary::-webkit-details-marker {
  display: none;
}
.page-news .nt-item__summary::after {
  content: "";
  display: block;
  width: 7px;
  height: 7px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform var(--dur) var(--ease);
}
.page-news .nt-item__more[open] .nt-item__summary::after {
  transform: rotate(-135deg) translate(-1px, -2px);
}
.page-news .nt-item__more-body {
  padding-bottom: 6px;
}
.page-news .nt-item__meta {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 18px;
  margin: 12px 0 0;
}
.page-news .nt-item__meta dt {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: rgba(220, 229, 223, .46);
}
.page-news .nt-item__meta dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(220, 229, 223, .84);
}
.page-news .nt-item__meta dd .num {
  color: var(--amber-500);
  letter-spacing: .05em;
}

.page-news .nt-item__tag {
  justify-self: start;
  align-self: start;
  white-space: nowrap;
  border-radius: 0;
  font-size: 11.5px;
  line-height: 1;
  padding: 6px 10px;
  letter-spacing: .08em;
}
.page-news .nt-tag--adj {
  background: var(--paper-50);
  color: var(--pitch-800);
  border: 1px solid var(--paper-50);
}
.page-news .nt-tag--data {
  background: transparent;
  color: var(--cyan-200);
  border: 1px solid rgba(59, 240, 206, .42);
}
.page-news .nt-tag--exp {
  background: transparent;
  color: var(--amber-300);
  border: 1px solid rgba(255, 138, 61, .46);
}
.page-news .nt-tag--arch {
  background: var(--cyan-200);
  color: var(--pitch-950);
  border: 1px solid var(--cyan-200);
}
.page-news .nt-tag--topic {
  background: var(--amber-500);
  color: var(--pitch-950);
  border: 1px solid var(--amber-500);
}

/* ---------- 记录结构（浅底） ---------- */
.page-news .nt-anatomy {
  padding: clamp(44px, 6vw, 84px) 0;
  background: var(--paper-50);
  color: var(--pitch-800);
}
.page-news .nt-anatomy__inner {
  display: grid;
  gap: clamp(28px, 4.5vw, 56px);
  align-items: start;
}
.page-news .eyebrow--dark {
  color: var(--pitch-600);
}
.page-news .nt-section-title {
  margin: 12px 0 0;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.2;
  letter-spacing: -.012em;
  color: var(--pitch-800);
}
.page-news .nt-anatomy__lede {
  max-width: 54ch;
  margin: 18px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(10, 46, 39, .78);
}
.page-news .nt-fields {
  margin: clamp(22px, 3vw, 34px) 0 0;
}
.page-news .nt-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-top: var(--nt-rule-light);
}
.page-news .nt-field:last-child {
  border-bottom: var(--nt-rule-light);
}
.page-news .nt-field__key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--pitch-600);
}
.page-news .nt-field__val {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(10, 46, 39, .84);
}
.page-news .nt-anatomy__figure {
  margin: 0;
}
.page-news .nt-anatomy__frame {
  aspect-ratio: 900 / 560;
  overflow: hidden;
  border: 1px solid rgba(10, 46, 39, .16);
  background: var(--pitch-800);
}
.page-news .nt-anatomy__frame .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-news .nt-anatomy .media__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--slate-600);
}

/* ---------- 专题归档 ---------- */
.page-news .nt-topics {
  padding: clamp(44px, 6vw, 84px) 0 clamp(40px, 5vw, 72px);
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(59, 240, 206, .12), rgba(59, 240, 206, 0) 62%),
    var(--pitch-800);
}
.page-news .nt-topics__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 20px;
  padding-bottom: 16px;
  border-bottom: var(--nt-rule);
}
.page-news .nt-topics__grid {
  display: grid;
  gap: 22px;
  margin-top: clamp(24px, 3.5vw, 40px);
}
.page-news .nt-topic {
  padding: 20px 20px 24px;
  border: 1px solid rgba(220, 229, 223, .18);
  background: rgba(4, 26, 22, .5);
}
.page-news .nt-topic__idx {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber-500);
}
.page-news .nt-topic__title {
  margin: 10px 0 0;
  font-size: clamp(18px, 2.3vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper-50);
}
.page-news .nt-topic__desc {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--nt-dim-2);
}
.page-news .nt-topics__figure {
  margin: 0;
}
.page-news .nt-topics__frame {
  aspect-ratio: 800 / 520;
  overflow: hidden;
  border: 1px solid rgba(220, 229, 223, .18);
  background: var(--pitch-950);
}
.page-news .nt-topics__frame .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-news .nt-topics .media__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(220, 229, 223, .58);
}
.page-news .nt-topics__foot {
  max-width: 70ch;
  margin: clamp(26px, 3.5vw, 40px) 0 0;
  padding-top: 18px;
  border-top: var(--nt-rule);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--nt-dim-2);
}
.page-news .nt-topics__foot a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-decoration-color: rgba(59, 240, 206, .4);
  text-underline-offset: 3px;
}
.page-news .nt-topics__foot a:hover {
  color: var(--cyan-200);
}

/* ---------- 纠错反馈 ---------- */
.page-news .nt-report {
  padding: clamp(40px, 5.5vw, 76px) 0 clamp(48px, 6vw, 88px);
  background: var(--pitch-950);
}
.page-news .nt-report__inner {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}
.page-news .nt-report__title {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper-50);
}
.page-news .nt-report__lede {
  max-width: 58ch;
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--nt-dim-2);
}
.page-news .nt-report__note {
  max-width: 58ch;
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--nt-dim);
}
.page-news .nt-report__note a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-decoration-color: rgba(59, 240, 206, .4);
  text-underline-offset: 3px;
}
.page-news .nt-report__note a:hover {
  color: var(--cyan-200);
}
.page-news .nt-report__aside {
  padding: 20px 20px 22px;
  border: 1px solid rgba(255, 138, 61, .38);
  border-left-width: 3px;
  background: rgba(10, 46, 39, .72);
}
.page-news .nt-report__key {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(220, 229, 223, .48);
}
.page-news .nt-report__value {
  margin: 6px 0 16px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper-50);
  word-break: break-word;
}
.page-news .nt-report__value.num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--cyan-200);
}
.page-news .nt-report__value:last-child {
  margin-bottom: 0;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 620px) {
  .page-news .nt-field {
    grid-template-columns: minmax(88px, 132px) minmax(0, 1fr);
    gap: 6px 22px;
    align-items: baseline;
  }
  .page-news .nt-topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
  .page-news .nt-topics__figure {
    grid-column: 1 / -1;
  }
  .page-news .nt-report__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
  }
}

@media (min-width: 860px) {
  .page-news .nt-item {
    grid-template-columns: var(--nt-stamp-w) minmax(0, 1fr) auto;
    gap: 0 28px;
    align-items: start;
    padding: 26px 0 26px 18px;
  }
  .page-news .nt-item::before {
    top: 26px;
    bottom: 26px;
  }
  .page-news .nt-item__stamp {
    flex-direction: column;
    gap: 7px;
    padding-top: 4px;
  }
  .page-news .nt-item__tag {
    justify-self: end;
    margin-top: 5px;
  }
}

@media (min-width: 960px) {
  .page-news .nt-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(36px, 4vw, 64px);
  }
  .page-news .nt-hero__visual {
    margin-top: clamp(18px, 4vw, 66px);
  }
  .page-news .nt-anatomy__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
  .page-news .nt-topics__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
  }
  .page-news .nt-topics__figure {
    grid-column: auto;
    margin-top: 26px;
  }
}

@media (min-width: 1080px) {
  .page-news .nt-filters__groups {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .nt-item::before,
  .page-news .nt-item__summary::after,
  .page-news .nt-chip {
    transition: opacity var(--dur) linear, color var(--dur) linear, background-color var(--dur) linear, border-color var(--dur) linear;
  }
  .page-news .nt-item::before {
    transform: none;
  }
}
<<<END>>>