.page-news {
  --news-rail-w: 210px;
  background: var(--ink);
  color: var(--mist);
  overflow-x: hidden;
}

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding-top: 20px;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: -180px;
  right: -140px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle at 55% 45%, rgba(74, 222, 208, 0.16), transparent 66%);
  pointer-events: none;
}

.page-news .news-hero__wrap {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__grid {
  display: grid;
  gap: 30px;
  align-items: center;
  margin-top: 20px;
}

.page-news .news-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 9.5vw, 66px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-news .news-title__mark {
  display: inline-block;
  color: var(--orange);
}

.page-news .news-lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--metal);
}

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

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .news-hero__media {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(140deg, var(--ink-2), var(--steel));
}

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

.page-news .news-hero__cap {
  position: absolute;
  left: 16px;
  bottom: 14px;
  padding: 5px 12px;
  border-radius: var(--pill);
  background: rgba(7, 13, 24, 0.78);
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 34px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
}

.page-news .news-stats__item {
  min-width: 0;
}

.page-news .news-stats__item dd {
  margin: 0;
}

.page-news .news-stats__item .stat-num {
  display: block;
  font-size: clamp(22px, 6vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--mist);
}

.page-news .news-stats__item .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--metal);
}

/* 分类轨道 + 连续列表 */
.page-news .news-body {
  display: grid;
  gap: 22px;
}

.page-news .news-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

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

.page-news .news-rail__title {
  display: none;
}

.page-news .news-rail__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: rgba(15, 29, 51, 0.7);
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 220ms var(--ease), color 220ms var(--ease), background 220ms var(--ease);
}

.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 107, 26, 0.08);
}

.page-news .news-rail__code {
  font-size: 11px;
  color: var(--metal);
}

.page-news .news-rail__link:hover .news-rail__code {
  color: var(--orange);
}

.page-news .news-stream {
  min-width: 0;
  display: grid;
  gap: 40px;
}

.page-news .news-group__intro {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

.page-news .news-group__media {
  margin: 20px 0 6px;
  max-width: 440px;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-2);
}

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

.page-news .news-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .news-item__no {
  padding-top: 3px;
  font-size: 12px;
  color: var(--metal);
  transition: color 220ms var(--ease);
}

.page-news .news-item:hover .news-item__no {
  color: var(--orange);
}

.page-news .news-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
}

.page-news .news-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-news .news-item__sum {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

.page-news .news-item__toggle {
  margin-top: 12px;
  padding: 0;
  border: 0;
  background: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cyan);
  cursor: pointer;
  border-bottom: 1px dashed currentColor;
}

.page-news .news-item__toggle[aria-expanded="true"] {
  color: var(--orange);
}

.page-news .news-item__panel {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background: var(--ink-2);
  border-left: 3px solid var(--cyan);
}

.page-news .news-item__panel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--metal);
}

.page-news .news-item__body {
  min-width: 0;
}

/* 版本刻度 */
.page-news .news-versions__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

.page-news .news-scale {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.page-news .news-scale__item {
  position: relative;
  padding: 0 0 26px 30px;
}

.page-news .news-scale__dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--steel);
  transition: border-color 220ms var(--ease), background 220ms var(--ease);
}

.page-news .news-scale__item::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 22px;
  bottom: -2px;
  width: 2px;
  background: var(--line);
}

.page-news .news-scale__item:last-child::after {
  display: none;
}

.page-news .news-scale__item--current .news-scale__dot {
  background: var(--orange);
  border-color: var(--orange);
}

.page-news .news-scale__ver {
  display: block;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-news .news-scale__item--current .news-scale__ver {
  color: var(--orange);
}

.page-news .news-scale__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

.page-news .news-scale__extra {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--steel);
  transition: color 220ms var(--ease);
}

.page-news .news-scale__item:hover .news-scale__extra,
.page-news .news-scale__item:focus-within .news-scale__extra {
  color: var(--cyan);
}

.page-news .news-versions__media {
  margin: 30px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

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

/* 专题系列 */
.page-news .news-series__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

.page-news .news-series__grid {
  margin-top: 30px;
}

.page-news .news-series__item {
  position: relative;
  padding: 22px 20px 22px 26px;
  border-radius: var(--r-md);
  background: linear-gradient(140deg, rgba(15, 29, 51, 0.95), rgba(7, 13, 24, 0.85));
  overflow: hidden;
}

.page-news .news-series__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--steel);
}

.page-news .news-series__item--process::before {
  background: var(--orange);
}

.page-news .news-series__item--fit::before {
  background: var(--cyan);
}

.page-news .news-series__item--rule::before {
  background: var(--amber);
}

.page-news .news-series__item--version::before {
  background: var(--metal);
}

.page-news .news-series__item .panel-title {
  margin: 8px 0 10px;
  color: var(--mist);
}

.page-news .news-series__item p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

.page-news .news-series__audience {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
  margin-bottom: 0;
}

/* 订阅入口 */
.page-news .news-sub__inner {
  display: grid;
  gap: 24px;
  padding: 28px 22px;
  border-radius: var(--r-lg);
  background: linear-gradient(120deg, rgba(38, 58, 85, 0.6), rgba(7, 13, 24, 0.35));
  border: 1px solid var(--line-soft);
}

.page-news .news-sub__copy .panel-title {
  margin: 10px 0 12px;
  color: var(--mist);
}

.page-news .news-sub__copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

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

.page-news .news-sub__cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-sub__cats a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--line-soft);
  background: rgba(7, 13, 24, 0.6);
  color: var(--mist);
  font-size: 15px;
  text-decoration: none;
  transition: border-color 220ms var(--ease), color 220ms var(--ease);
}

.page-news .news-sub__cats a .mono {
  font-size: 12px;
  color: var(--metal);
}

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

.page-news .news-sub__cats a:hover .mono,
.page-news .news-sub__cats a:focus-visible .mono {
  color: var(--orange);
}

@media (min-width: 760px) {
  .page-news .news-item {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 16px;
    padding: 24px 0;
  }

  .page-news .news-item__title {
    font-size: 20px;
  }

  .page-news .news-stats {
    gap: 28px;
  }
}

@media (min-width: 960px) {
  .page-news .news-hero {
    padding-top: 34px;
  }

  .page-news .news-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
  }

  .page-news .news-body {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .news-rail__title {
    display: block;
    margin: 0 0 12px;
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--metal);
  }

  .page-news .news-rail__link {
    justify-content: flex-start;
    width: 100%;
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    background: transparent;
    padding: 11px 14px;
  }

  .page-news .news-rail__link:hover,
  .page-news .news-rail__link:focus-visible {
    border-left-color: var(--orange);
    background: rgba(15, 29, 51, 0.85);
  }

  .page-news .news-scale {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin-top: 40px;
  }

  .page-news .news-scale__item {
    padding: 34px 26px 0 0;
  }

  .page-news .news-scale__dot {
    top: 0;
    left: 0;
  }

  .page-news .news-scale__item::after {
    left: 14px;
    right: 0;
    top: 5px;
    bottom: auto;
    width: auto;
    height: 2px;
  }

  .page-news .news-scale__item:last-child::after {
    display: none;
  }

  .page-news .news-sub__inner {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    padding: 36px 34px;
  }
}

@media (min-width: 1180px) {
  .page-news .news-stats__item .stat-num {
    font-size: 38px;
  }
}