.page-news {
  --news-rail-w: 360px;
  --news-gap: clamp(30px, 4vw, 56px);
  --news-log-pad: clamp(18px, 3vw, 32px);
  display: block;
}

/* ---------- 首屏 ---------- */

.page-news .news-masthead {
  position: relative;
  overflow: hidden;
  padding: calc(var(--rail-h) + clamp(26px, 4.5vw, 54px)) 0 clamp(34px, 5vw, 62px);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(22, 224, 210, 0.18), transparent 58%),
    radial-gradient(85% 70% at -12% 112%, rgba(255, 107, 74, 0.12), transparent 62%),
    var(--deep-sea);
  border-bottom: 1px solid var(--line-soft);
}

.page-news .news-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 96px);
  opacity: 0.5;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 72%);
}

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

.page-news .news-masthead__inner > .breadcrumb {
  margin-bottom: clamp(22px, 3.5vw, 38px);
}

.page-news .news-masthead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-news .news-masthead__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.2vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--mist-white);
  text-shadow: 0 12px 34px rgba(0, 0, 0, 0.42);
}

.page-news .news-masthead__lead {
  margin: 18px 0 0;
  max-width: 36em;
  font-family: var(--font-body);
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--gray-blue);
}

.page-news .news-masthead__facts {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px clamp(18px, 3vw, 34px);
}

.page-news .news-masthead__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13.5px;
  color: var(--gray-blue);
}

.page-news .news-masthead__facts b {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--signal-gold);
}

.page-news .news-masthead__media {
  position: relative;
  margin: 0;
  border-radius: var(--radius-soft);
  overflow: hidden;
  border: 1px solid var(--line-mid);
  box-shadow: var(--shadow-lift);
}

.page-news .news-masthead__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(200deg, rgba(22, 224, 210, 0.16), transparent 46%, rgba(6, 18, 36, 0.55));
}

/* ---------- 主体双栏 ---------- */

.page-news .news-body {
  padding: clamp(38px, 5.5vw, 78px) 0 clamp(42px, 6vw, 86px);
  background: linear-gradient(180deg, rgba(18, 51, 90, 0.5) 0%, rgba(6, 18, 36, 0.9) 100%);
}

.page-news .news-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  align-items: start;
}

.page-news .news-stream__head {
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

.page-news .news-stream__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(28px, 3.5vw, 44px);
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-news .news-item__round {
  display: block;
  padding: 4px 0 4px 9px;
  border-left: 2px solid var(--fluoro-cyan);
  font-size: 19px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--signal-gold);
  transition: border-color 0.28s ease, color 0.28s ease;
}

.page-news .news-item:hover .news-item__round,
.page-news .news-item:focus-within .news-item__round {
  border-left-color: var(--aqua-glow);
  color: var(--mint-fog);
}

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

.page-news .news-item__cat {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gray-blue);
}

.page-news .news-item__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.34;
  letter-spacing: -0.01em;
  color: var(--mist-white);
}

.page-news .news-item__sum {
  margin: 0;
  max-width: 36em;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--gray-blue);
}

.page-news .news-item__more {
  margin-top: 12px;
}

.page-news .news-item__more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 0;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  color: var(--aqua-glow);
  border-bottom: 1px dashed var(--line-mid);
  transition: color 0.24s ease, border-color 0.24s ease;
}

.page-news .news-item__more summary::-webkit-details-marker {
  display: none;
}

.page-news .news-item__more summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--fluoro-cyan);
}

.page-news .news-item__more[open] summary::before {
  content: "\2212";
}

.page-news .news-item__more summary:hover,
.page-news .news-item__more summary:focus-visible {
  color: var(--mint-fog);
  border-bottom-color: var(--line-strong);
}

.page-news .news-item__more summary:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius);
}

.page-news .news-item__facts {
  list-style: none;
  margin: 14px 0 0;
  padding: 16px 18px;
  display: grid;
  gap: 10px;
  background: rgba(18, 51, 90, 0.62);
  border-left: 2px solid var(--line-strong);
  border-radius: 0 var(--radius-soft) var(--radius-soft) 0;
}

.page-news .news-item__facts li {
  position: relative;
  padding-left: 16px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist-white);
}

.page-news .news-item__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--fluoro-cyan);
  transform: rotate(45deg);
}

.page-news .news-item__facts b {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--signal-gold);
}

.page-news .news-item__jump {
  margin: 12px 0 0;
  font-size: 14px;
}

.page-news .news-item__jump a {
  color: var(--aqua-glow);
  text-decoration: none;
  border-bottom: 1px solid var(--line-mid);
  transition: color 0.24s ease, border-color 0.24s ease;
}

.page-news .news-item__jump a:hover,
.page-news .news-item__jump a:focus-visible {
  color: var(--mint-fog);
  border-bottom-color: var(--line-strong);
}

.page-news .news-item__jump a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius);
}

.page-news .news-item__body::after {
  content: "";
  display: block;
  height: 6px;
  margin-top: 30px;
  background-image: radial-gradient(circle at 3px 3px, rgba(127, 243, 234, 0.3) 1.5px, transparent 1.7px);
  background-size: 14px 6px;
  background-repeat: repeat-x;
}

/* ---------- 右侧固定栏 ---------- */

.page-news .news-rail {
  display: grid;
  gap: 22px;
}

.page-news .rail-card {
  position: relative;
  padding: 24px 22px 26px;
  border-radius: var(--radius-soft);
  border: 1px solid var(--line-soft);
  background: linear-gradient(160deg, rgba(18, 51, 90, 0.96), rgba(6, 18, 36, 0.94));
  box-shadow: var(--shadow-lift);
  overflow: hidden;
  transition: transform 0.32s ease, border-color 0.32s ease;
}

.page-news .rail-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--fluoro-cyan), rgba(22, 224, 210, 0) 72%);
  opacity: 0.6;
  transition: opacity 0.32s ease;
}

.page-news .rail-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-mid);
}

.page-news .rail-card:hover::before {
  opacity: 1;
}

.page-news .rail-card--next::before {
  background: linear-gradient(90deg, var(--coral), rgba(255, 107, 74, 0) 72%);
}

.page-news .rail-card__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 16px;
}

.page-news .rail-card__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--fluoro-cyan);
}

.page-news .rail-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--mist-white);
}

.page-news .rail-card__media {
  margin: 0 0 16px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.page-news .rail-card__lead {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.72;
  color: var(--gray-blue);
}

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

.page-news .data-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .data-list__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .data-list__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--signal-gold);
}

.page-news .data-list__name {
  margin: 0 0 3px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.005em;
  color: var(--mist-white);
}

.page-news .data-list__desc {
  margin: 0;
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--gray-blue);
}

.page-news .next-meta {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
}

.page-news .next-meta__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 13.5px;
  color: var(--gray-blue);
}

.page-news .next-meta__row b {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--signal-gold);
  white-space: nowrap;
}

.page-news .rail-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 栏目动态 ---------- */

.page-news .news-log {
  padding: clamp(44px, 6vw, 86px) 0;
  background:
    radial-gradient(90% 70% at 10% 0%, rgba(22, 224, 210, 0.1), transparent 62%),
    var(--abyss);
  border-top: 1px solid var(--line-soft);
}

.page-news .news-log__head {
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-news .news-log__list {
  list-style: none;
  margin: 0;
  padding-left: var(--news-log-pad);
  border-left: 1px solid var(--line-mid);
  display: grid;
  gap: clamp(24px, 3.2vw, 38px);
}

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

.page-news .news-log__item::before {
  content: "";
  position: absolute;
  left: calc(var(--news-log-pad) * -1 - 4px);
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fluoro-cyan);
  box-shadow: 0 0 0 4px rgba(22, 224, 210, 0.14);
}

.page-news .news-log__when {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--coral);
}

.page-news .news-log__title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.36;
  letter-spacing: -0.01em;
  color: var(--mist-white);
}

.page-news .news-log__desc {
  margin: 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--gray-blue);
}

/* ---------- 专题系列 ---------- */

.page-news .news-topics {
  padding: clamp(44px, 6vw, 86px) 0;
  background:
    radial-gradient(80% 60% at 100% 0%, rgba(255, 107, 74, 0.1), transparent 60%),
    linear-gradient(180deg, var(--deep-sea), rgba(6, 18, 36, 0.96));
}

.page-news .news-topics__head {
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-news .topics-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.page-news .topic-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  min-height: 138px;
  padding: 20px 20px 22px;
  border-radius: var(--radius-soft);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(18, 51, 90, 0.94), rgba(6, 18, 36, 0.94));
  transition: transform 0.32s ease, border-color 0.32s ease;
}

.page-news .topic-tile::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--fluoro-cyan), rgba(22, 224, 210, 0) 78%);
  opacity: 0.35;
  transition: opacity 0.32s ease;
}

.page-news .topic-tile:hover {
  transform: translateY(-4px);
  border-color: var(--line-mid);
}

.page-news .topic-tile:hover::after {
  opacity: 1;
}

.page-news .topic-tile--cyan {
  background: linear-gradient(150deg, rgba(22, 224, 210, 0.22), rgba(6, 18, 36, 0.94) 64%), var(--hull-blue);
}

.page-news .topic-tile--coral {
  background: linear-gradient(150deg, rgba(255, 107, 74, 0.24), rgba(6, 18, 36, 0.94) 64%), var(--hull-blue);
}

.page-news .topic-tile--gold {
  background: linear-gradient(150deg, rgba(255, 194, 75, 0.22), rgba(6, 18, 36, 0.94) 64%), var(--hull-blue);
}

.page-news .topic-tile--mint {
  background: linear-gradient(150deg, rgba(184, 255, 245, 0.16), rgba(6, 18, 36, 0.94) 64%), var(--hull-blue);
}

.page-news .topic-tile--coral::after,
.page-news .topic-tile--gold::after {
  background: linear-gradient(90deg, var(--signal-gold), rgba(255, 194, 75, 0) 78%);
}

.page-news .topic-tile__kind {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--gray-blue);
}

.page-news .topic-tile__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--mist-white);
}

.page-news .topic-tile__desc {
  margin: 0;
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--gray-blue);
}

.page-news .topic-tile--feature {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding: 0;
  align-items: stretch;
  min-height: 0;
}

.page-news .topic-tile__img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 170px;
  object-fit: cover;
  opacity: 0.82;
}

.page-news .topic-tile__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 9px;
  padding: 22px 22px 24px;
}

/* ---------- 内容与更新节奏 ---------- */

.page-news .news-desk {
  padding: clamp(44px, 6vw, 86px) 0;
  background: var(--abyss);
  border-top: 1px solid var(--line-soft);
}

.page-news .news-desk__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-news .news-desk__title {
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.8vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--mist-white);
}

.page-news .news-desk__copy .prose {
  margin: 0 0 14px;
  color: var(--gray-blue);
}

.page-news .news-desk__copy .prose:last-child {
  margin-bottom: 0;
}

.page-news .news-desk__copy a {
  color: var(--aqua-glow);
  text-decoration: none;
  border-bottom: 1px solid var(--line-mid);
  transition: color 0.24s ease, border-color 0.24s ease;
}

.page-news .news-desk__copy a:hover,
.page-news .news-desk__copy a:focus-visible {
  color: var(--mint-fog);
  border-bottom-color: var(--line-strong);
}

.page-news .news-desk__copy a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius);
}

.page-news .news-desk__roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .news-desk__role {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 20px;
  border-radius: var(--radius-soft);
  border: 1px solid var(--line-soft);
  background: linear-gradient(150deg, rgba(18, 51, 90, 0.7), rgba(6, 18, 36, 0.75));
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.page-news .news-desk__role:hover {
  transform: translateY(-3px);
  border-color: var(--line-mid);
}

.page-news .news-desk__role-idx {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fluoro-cyan);
  padding-top: 3px;
}

.page-news .news-desk__role b {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--mist-white);
  margin-bottom: 4px;
}

.page-news .news-desk__role span {
  display: block;
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray-blue);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-news .topics-board {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
  }

  .page-news .topic-tile {
    grid-column: span 2;
  }

  .page-news .topic-tile--feature {
    grid-column: span 6;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

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

  .page-news .news-desk__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-news .news-body__grid {
    grid-template-columns: minmax(0, 1fr) var(--news-rail-w);
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--rail-h) + 22px);
  }

  .page-news .news-log__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-news .news-log__item::before {
    left: calc(var(--news-log-pad) * -1 - 4px);
  }
}

@media (max-width: 480px) {
  .page-news .news-item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
  }

  .page-news .news-item__round {
    font-size: 16px;
    padding-left: 7px;
  }

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

  .page-news .rail-card {
    padding: 20px 18px 22px;
  }
}
<<<END>>>