.page-news {
  --news-rail: 268px;
  --news-gap: clamp(28px, 4.2vw, 56px);
}

/* ---------- 页头 ---------- */
.page-news .news-masthead {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 5.6vw, 76px) 0 clamp(26px, 4.2vw, 54px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-masthead::before {
  content: "";
  position: absolute;
  inset: -10% -6% 0;
  background:
    radial-gradient(90% 76% at 92% 4%, rgba(255, 106, 26, 0.18), transparent 62%),
    radial-gradient(80% 96% at 6% 16%, rgba(31, 76, 143, 0.42), transparent 66%);
  pointer-events: none;
}

.page-news .news-masthead-inner {
  position: relative;
}

.page-news .news-title {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-weight: 200;
  font-size: clamp(38px, 7.4vw, 86px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--mist);
  max-width: 20ch;
}

.page-news .news-lede {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  max-width: 64ch;
  color: var(--steel);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.8;
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-stat {
  background: rgba(5, 11, 26, 0.72);
  padding: 16px 18px;
}

.page-news .news-stat dt {
  margin: 0 0 8px;
}

.page-news .news-stat dd {
  margin: 0;
  color: var(--steel);
  font-size: 14px;
  line-height: 1.6;
}

.page-news .news-stat dd .num {
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  margin-right: 4px;
}

/* ---------- 主体骨架 ---------- */
.page-news .news-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  padding: clamp(28px, 4.6vw, 60px) 0 clamp(48px, 8vw, 100px);
}

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

/* ---------- 筛选 ---------- */
.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-news .filter-btn {
  padding: 7px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--steel);
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color 240ms var(--ease), color 240ms var(--ease),
    border-color 240ms var(--ease);
}

.page-news .filter-btn:hover {
  border-color: var(--accent-soft);
  color: var(--mist);
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
  font-weight: 700;
}

.page-news .filter-btn:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 2px;
}

/* ---------- 画板 ---------- */
.page-news .news-board {
  padding-top: clamp(30px, 4.6vw, 58px);
}

.page-news .news-board--first {
  padding-top: 0;
}

.page-news .news-board-lede {
  margin: 12px 0 0;
  max-width: 58ch;
  color: var(--rock);
  font-size: 15px;
  line-height: 1.85;
}

.page-news .news-board--deep {
  margin-top: clamp(30px, 4.6vw, 56px);
  padding: clamp(22px, 3.4vw, 42px);
  background: linear-gradient(160deg, rgba(20, 49, 95, 0.62), rgba(10, 27, 61, 0.34));
  border: 1px solid var(--line);
}

.page-news .news-board-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.8vw, 34px);
  align-items: end;
}

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

.page-news .news-board-foot {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
}

/* ---------- 主推条目 ---------- */
.page-news .news-feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.8vw, 34px);
  margin-top: clamp(20px, 3vw, 32px);
  padding-bottom: clamp(24px, 3.4vw, 42px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-feature-media {
  margin: 0;
}

.page-news .news-feature-body {
  min-width: 0;
}

.page-news .news-feature-title {
  margin: 14px 0 0;
  font-weight: 200;
  font-size: clamp(26px, 3.5vw, 46px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--mist);
  transform-origin: left bottom;
  transition: transform 280ms var(--ease), color 280ms var(--ease);
}

.page-news .news-feature-title a {
  color: inherit;
  text-decoration: none;
}

.page-news .news-feature:hover .news-feature-title,
.page-news .news-feature:focus-within .news-feature-title {
  transform: scale(1.015);
  color: var(--accent-soft);
}

.page-news .news-feature-text {
  margin: 14px 0 0;
  color: var(--steel);
  font-size: 16px;
  line-height: 1.85;
}

.page-news .news-feature-foot {
  margin: 18px 0 0;
}

/* ---------- 元信息 ---------- */
.page-news .news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.page-news .news-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--glass);
  color: var(--steel);
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.5;
  white-space: nowrap;
}

.page-news .news-tag.is-accent,
.page-news .news-tag.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 106, 26, 0.12);
}

.page-news .news-time {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--rock);
}

/* ---------- 短条目 ---------- */
.page-news .news-briefs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 clamp(20px, 3vw, 36px);
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-news .news-briefs > li {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-news .news-brief-title {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--mist);
}

.page-news .news-brief-text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 分类列表 ---------- */
.page-news .news-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 clamp(20px, 3vw, 38px);
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-news .news-item {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-news .news-item-title {
  margin: 10px 0 0;
  font-size: 19px;
  font-weight: 300;
  line-height: 1.45;
  color: var(--mist);
}

.page-news .news-item-text {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--rock);
}

/* ---------- 时间线 ---------- */
.page-news .news-timeline {
  counter-reset: news-step;
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-left: 1px solid var(--line-strong);
}

.page-news .news-timeline > li {
  counter-increment: news-step;
  position: relative;
  padding: 4px 0 22px clamp(20px, 3vw, 34px);
}

.page-news .news-timeline > li::before {
  content: counter(news-step, decimal-leading-zero);
  position: absolute;
  left: -1px;
  top: 6px;
  transform: translateX(-50%);
  padding: 2px 6px;
  background: var(--ink);
  color: var(--accent);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news .news-timeline > li:last-child {
  padding-bottom: 4px;
}

/* ---------- 标签说明 ---------- */
.page-news .tag-legend {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .tag-legend > div {
  background: rgba(10, 27, 61, 0.55);
  padding: 16px 18px;
}

.page-news .tag-legend dt {
  margin: 0 0 8px;
}

.page-news .tag-legend dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

.page-news .news-sub {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 66ch;
  padding-left: 16px;
  border-left: 2px solid var(--accent);
  color: var(--steel);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 侧栏 ---------- */
.page-news .news-rail {
  display: grid;
  gap: clamp(22px, 3vw, 32px);
  align-content: start;
}

.page-news .rail-block {
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
}

.page-news .rail-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--steel);
}

.page-news .tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .rail-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--rock);
}

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

.page-news .rail-list > li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.page-news .rail-key {
  color: var(--steel);
}

.page-news .rail-val {
  color: var(--rock);
}

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

.page-news .rail-links > li {
  padding: 7px 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .news-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 760px) {
  .page-news .news-board-head {
    grid-template-columns: minmax(0, 1fr) 260px;
  }

  .page-news .news-feature {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    align-items: end;
  }

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

@media (min-width: 1024px) {
  .page-news .news-shell {
    grid-template-columns: minmax(0, 1fr) var(--news-rail);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + var(--strip-h) + 24px);
  }

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

  .page-news .news-list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-news .news-item {
    grid-column: span 3;
  }

  .page-news .news-item--wide {
    grid-column: span 3;
  }
}

@media (min-width: 1280px) {
  .page-news .news-item {
    grid-column: span 2;
  }

  .page-news .news-item--wide {
    grid-column: span 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-feature-title,
  .page-news .filter-btn {
    transition: none;
  }

  .page-news .news-feature:hover .news-feature-title,
  .page-news .news-feature:focus-within .news-feature-title {
    transform: none;
  }
}
<<<END>>>