.page-news {
  --news-gap: clamp(18px, 2.6vw, 34px);
  --news-edge: clamp(16px, 2vw, 24px);
  --news-radius: var(--radius);
  background:
    radial-gradient(110% 55% at 88% 0%, rgba(53, 208, 186, 0.1), transparent 62%),
    radial-gradient(90% 45% at 0% 30%, rgba(255, 106, 26, 0.07), transparent 65%),
    var(--night);
  color: var(--ice);
  overflow-x: clip;
}

.page-news img {
  max-width: 100%;
  height: auto;
}

.page-news .news-head {
  position: relative;
  padding: clamp(26px, 4.5vw, 56px) 0 clamp(26px, 4vw, 46px);
}

.page-news .news-head::after {
  content: "";
  position: absolute;
  left: clamp(16px, 4vw, 48px);
  bottom: 0;
  width: min(220px, 40%);
  height: 2px;
  background: linear-gradient(90deg, var(--orange), transparent);
}

.page-news .news-head__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 6.2vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 22ch;
}

.page-news .news-head__lede {
  margin-top: clamp(16px, 2vw, 24px);
  max-width: 62ch;
  color: var(--slate);
  font-size: clamp(16px, 1.6vw, 17px);
  line-height: 1.75;
}

.page-news .news-head__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(20px, 3vw, 44px);
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-head__facts .stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-news .news-head__facts .stat__num {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.page-news .news-head__facts .stat__label {
  font-size: 13px;
  color: var(--slate);
}

/* 置顶两条 */
.page-news .news-top__head {
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-news .news-top__head .note {
  margin-top: 10px;
}

.page-news .news-top__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}

.page-news .news-lead {
  padding: 0;
  overflow: hidden;
  border-radius: var(--news-radius);
}

.page-news .news-lead__media {
  position: relative;
  background: linear-gradient(135deg, var(--pitch), var(--night-deep));
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

.page-news .news-lead__media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: 0.9;
}

.page-news .news-lead__body {
  padding: var(--news-edge);
}

.page-news .news-lead__title {
  margin: 14px 0 0;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-news .news-lead__body p {
  margin: 12px 0 18px;
  color: var(--slate);
  line-height: 1.75;
  max-width: 56ch;
}

.page-news .news-lead--brief {
  background: linear-gradient(160deg, rgba(255, 106, 26, 0.12), rgba(14, 59, 46, 0.5));
}

.page-news .news-lead--brief .news-lead__title {
  margin-top: 16px;
}

/* 筛选主区与右栏 */
.page-news .news-board__head {
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-news .news-board__head .note {
  margin-top: 10px;
}

.page-news .news-board__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.2vw, 40px);
}

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

.page-news .news-board__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 18px;
  padding-bottom: clamp(16px, 2vw, 22px);
  border-bottom: 1.5px solid var(--line);
  margin-bottom: clamp(22px, 2.6vw, 32px);
}

.page-news .news-board__count {
  margin: 0;
  font-size: 13px;
  color: var(--slate);
  font-variant-numeric: tabular-nums;
}

.page-news .news-board__count [data-filter-count] {
  color: var(--amber);
  font-weight: 700;
  margin-right: 2px;
}

.page-news .chip {
  background: rgba(14, 59, 46, 0.35);
  border: 1.5px solid var(--line);
  color: var(--ice);
  border-radius: 999px;
  padding: 8px 16px;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.page-news .chip:hover {
  transform: translateY(-2px);
  border-color: var(--orange);
}

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

.page-news .news-group {
  margin-bottom: clamp(30px, 4vw, 52px);
}

.page-news .news-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: 16px;
}

.page-news .news-group__title {
  margin: 0 0 16px;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-news .news-group__head .news-group__title {
  margin-bottom: 0;
}

.page-news .news-group__title::before {
  content: "";
  width: 22px;
  height: 4px;
  background: var(--orange);
  border-radius: 2px;
  flex: none;
}

.page-news .news-group__head .note {
  margin: 0;
}

.page-news .news-group__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 28px);
}

.page-news .news-group__figure {
  margin: 0;
}

/* 时间轴列表 */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(14px, 2vw, 22px);
  border-left: 2px solid var(--line);
}

.page-news .news-item {
  position: relative;
  margin-bottom: 14px;
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(14px, 2vw, 22px) - 8px);
  top: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--night);
  border: 2px solid var(--line);
  box-sizing: border-box;
}

.page-news .news-item--live::before {
  background: var(--orange);
  border-color: var(--orange);
  animation: news-pulse 2.4s ease-in-out infinite;
}

.page-news .news-item.is-filtered-out {
  display: none;
}

.page-news .news-item__fold {
  border-radius: var(--news-radius);
}

.page-news .news-item__summary {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 15px 46px 15px 16px;
  border: 1.5px solid var(--line);
  border-radius: var(--news-radius);
  background: rgba(14, 59, 46, 0.28);
  cursor: pointer;
  list-style: none;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

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

.page-news .news-item__summary:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
}

.page-news .news-item__summary::after {
  content: "+";
  position: absolute;
  top: 13px;
  right: 16px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-news .news-item__fold[open] > .news-item__summary {
  border-color: var(--orange);
  background: rgba(255, 106, 26, 0.09);
}

.page-news .news-item__fold[open] > .news-item__summary::after {
  content: "−";
}

.page-news .news-item__summary:focus-visible,
.page-news .chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

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

.page-news .news-item__tag {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 9px;
}

.page-news .news-item__when {
  font-size: 13px;
  color: var(--slate);
  font-variant-numeric: tabular-nums;
}

.page-news .news-item__title {
  font-size: clamp(16px, 1.7vw, 18px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-news .news-item__body {
  padding: 12px 16px 6px;
  color: var(--slate);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-news .news-item__body p {
  margin: 0;
}

/* 右栏 */
.page-news .news-board__rail {
  display: grid;
  gap: clamp(18px, 2.2vw, 26px);
  align-content: start;
}

.page-news .rail-card {
  padding: var(--news-edge);
  border-radius: var(--news-radius);
}

.page-news .rail-card--tags {
  border: 1.5px solid var(--line);
  background: rgba(4, 9, 16, 0.5);
}

.page-news .rail-card__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-news .rail-card__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .rail-card__figure {
  margin: 0 0 16px;
}

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

.page-news .tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .tag-list__item {
  font-size: 13px;
  color: var(--ice);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 13px;
  background: rgba(14, 59, 46, 0.3);
}

/* 专题 */
.page-news .news-topics__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 44px);
}

.page-news .news-topics__intro .lede {
  color: rgba(233, 238, 243, 0.78);
  margin-top: 14px;
  max-width: 46ch;
}

.page-news .news-topics__figure {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
}

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

.page-news .topic-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  padding: clamp(16px, 2vw, 22px) 0;
  border-top: 1.5px solid rgba(233, 238, 243, 0.18);
}

.page-news .topic-item:last-child {
  border-bottom: 1.5px solid rgba(233, 238, 243, 0.18);
}

.page-news .topic-item__num {
  grid-row: 1 / span 2;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-news .topic-item__title {
  margin: 0;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-news .topic-item__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(233, 238, 243, 0.72);
  max-width: 52ch;
}

/* 收尾 */
.page-news .news-cta__box {
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
  padding: clamp(22px, 3vw, 40px);
  border: 2px solid var(--orange);
  border-radius: var(--news-radius);
  background:
    linear-gradient(120deg, rgba(255, 106, 26, 0.14), rgba(7, 21, 34, 0.9) 55%),
    var(--night-deep);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.page-news .news-cta__box::before {
  content: "";
  position: absolute;
  inset: auto -40px -60px auto;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(53, 208, 186, 0.22), transparent 70%);
  pointer-events: none;
}

.page-news .news-cta__box .section-title {
  margin: 0 0 10px;
}

.page-news .news-cta__box p {
  margin: 0;
  color: var(--slate);
  line-height: 1.75;
  max-width: 52ch;
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: end;
}

@keyframes news-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.22); opacity: 0.75; }
}

@media (min-width: 768px) {
  .page-news .news-top__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-news .news-lead--brief {
    align-self: stretch;
    display: flex;
    align-items: flex-start;
  }

  .page-news .news-group__split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-news .news-cta__box {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-news .news-board__layout {
    grid-template-columns: minmax(0, 9fr) minmax(0, 3fr);
  }

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

  .page-news .news-topics__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-news .news-board__main {
    padding-right: clamp(8px, 1.5vw, 18px);
  }
}

@media (max-width: 640px) {
  .page-news .news-board__bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-news .news-item__summary {
    padding: 14px 40px 14px 14px;
  }

  .page-news .news-list {
    padding-left: 14px;
  }

  .page-news .news-head__facts {
    gap: 14px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item--live::before {
    animation: none;
  }

  .page-news .news-item__summary,
  .page-news .chip {
    transition: opacity 0.2s ease;
  }

  .page-news .news-item__summary:hover,
  .page-news .chip:hover {
    transform: none;
  }
}