.page-news {
  --news-cyan-soft: rgba(41, 224, 214, 0.14);
  --news-orange-soft: rgba(255, 106, 31, 0.16);
  --news-gold-soft: rgba(242, 193, 78, 0.18);
  --news-node: 10px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: 28px 0 8px;
}

.page-news .news-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 58px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.06;
  color: var(--mist-100);
  margin: 12px 0 16px;
  max-width: 18ch;
}

.page-news .news-hero__lead {
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel-500);
  max-width: 62ch;
  margin: 0 0 26px;
}

.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 0;
}

.page-news .news-stat {
  background: var(--ds-900);
  padding: 14px 16px;
}

.page-news .news-stat dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel-500);
  margin-bottom: 6px;
}

.page-news .news-stat dd {
  margin: 0;
  font-size: 15px;
  color: var(--mist-100);
  letter-spacing: 0.01em;
}

.page-news .news-hero__media {
  margin: 30px 0 0;
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
}

.page-news .media__caption {
  color: var(--steel-500);
}

/* ---------- 区块头 ---------- */
.page-news .news-head {
  max-width: 68ch;
  margin-bottom: 26px;
}

.page-news .news-head h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--mist-100);
  margin: 0 0 10px;
}

.page-news .news-head p {
  color: var(--steel-500);
  font-size: 15px;
  line-height: 1.78;
  margin: 0;
}

/* ---------- 时间轴 ---------- */
.page-news .news-timeline {
  padding-top: 46px;
}

.page-news .news-tl {
  list-style: none;
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0 0 12px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-tl__node {
  position: relative;
  flex: 0 0 210px;
  padding: 62px 14px 16px 0;
  outline: none;
}

.page-news .news-tl__node::before {
  content: "";
  position: absolute;
  top: 24px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line-strong);
}

.page-news .news-tl__node:first-child::before {
  left: 50%;
}

.page-news .news-tl__node:last-child::before {
  right: 50%;
}

.page-news .news-tl__dot {
  position: absolute;
  top: 19px;
  left: calc(50% - 5px);
  width: var(--news-node);
  height: var(--news-node);
  border-radius: 50%;
  background: var(--ds-800);
  border: 1px solid var(--line-strong);
  box-sizing: border-box;
  transition: background 0.2s var(--ease), box-shadow 0.25s var(--ease);
}

.page-news .news-tl__node:hover .news-tl__dot,
.page-news .news-tl__node:focus .news-tl__dot,
.page-news .news-tl__node:focus-within .news-tl__dot {
  background: var(--cyan);
  box-shadow: 0 0 0 4px var(--news-cyan-soft);
}

.page-news .news-tl__node--current .news-tl__dot {
  background: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 0 5px var(--news-orange-soft), 0 0 16px rgba(255, 106, 31, 0.5);
}

.page-news .news-tl__round {
  display: block;
  font-size: 13px;
  color: var(--mist-100);
  margin-bottom: 6px;
}

.page-news .news-tl__sum {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.36s var(--ease), opacity 0.28s var(--ease);
}

.page-news .news-tl__node:hover .news-tl__sum,
.page-news .news-tl__node:focus .news-tl__sum,
.page-news .news-tl__node:focus-within .news-tl__sum {
  max-height: 180px;
  opacity: 1;
}

.page-news .news-tl__sum p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel-500);
  margin: 6px 0 0;
  border-left: 1px solid var(--line-soft);
  padding-left: 10px;
}

.page-news .news-tag--sync {
  color: var(--cyan);
  border-color: var(--news-cyan-soft);
}

.page-news .news-tag--caliber {
  color: var(--gold);
  border-color: var(--news-gold-soft);
}

.page-news .news-tag--live {
  color: var(--orange);
  border-color: var(--news-orange-soft);
}

/* ---------- 专题板 ---------- */
.page-news .news-topics {
  padding-top: 52px;
}

.page-news .news-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-news .news-rail {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-news .news-rail__title {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel-500);
  font-weight: 500;
  margin: 0 0 14px;
}

.page-news .news-rail__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-rail__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--mist-100);
  padding: 7px 12px 7px 10px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--steel-500);
  border-radius: var(--radius-sm);
  background: var(--ds-900);
}

.page-news .news-rail__item .mono {
  font-size: 11px;
  color: var(--steel-500);
}

.page-news .news-rail__item--sync {
  border-left-color: var(--cyan);
}

.page-news .news-rail__item--rule {
  border-left-color: var(--orange);
}

.page-news .news-rail__item--data {
  border-left-color: var(--gold);
}

.page-news .news-rail__item--log {
  border-left-color: var(--steel-500);
}

.page-news .news-rail__media {
  max-width: 240px;
  margin: 0;
}

.page-news .news-rail__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
}

.page-news .news-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-news .news-list__col {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.page-news .news-item {
  position: relative;
  padding: 4px 0 4px 16px;
  border-top: 1px solid var(--line-soft);
  transition: border-color 0.22s var(--ease);
}

.page-news .news-item:hover {
  border-top-color: var(--line-strong);
}

.page-news .news-item__bar {
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 2px;
  background: var(--steel-500);
}

.page-news .news-item--sync .news-item__bar {
  background: var(--cyan);
}

.page-news .news-item--rule .news-item__bar {
  background: var(--orange);
}

.page-news .news-item--data .news-item__bar {
  background: var(--gold);
}

.page-news .news-item--log .news-item__bar {
  background: var(--ds-700);
}

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

.page-news .news-item__round {
  font-size: 12px;
  color: var(--steel-500);
}

.page-news .news-item__time {
  font-size: 12px;
  color: var(--steel-500);
  padding-left: 10px;
  border-left: 1px solid var(--line);
}

.page-news .news-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.005em;
  line-height: 1.42;
  color: var(--mist-100);
  margin: 0 0 8px;
}

.page-news .news-item p {
  font-size: 14px;
  line-height: 1.78;
  color: var(--steel-500);
  margin: 0;
}

/* ---------- 变更对照 ---------- */
.page-news .news-diff {
  padding-top: 52px;
}

.page-news .news-diff__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-news .news-diff__col {
  background: var(--ds-900);
  padding: 22px 20px;
}

.page-news .news-diff__col--prev {
  background: var(--ds-950);
}

.page-news .news-diff__col--now {
  background: var(--ds-800);
}

.page-news .news-diff__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist-100);
  margin: 12px 0 18px;
}

.page-news .news-diff__hl {
  background: none;
  color: inherit;
  border-bottom: 1px solid var(--orange);
  padding-bottom: 1px;
}

.page-news .news-diff__col--prev .news-diff__hl {
  border-bottom-color: var(--steel-500);
  border-bottom-style: dashed;
}

.page-news .news-diff__notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .news-diff__notes li {
  font-size: 13px;
  color: var(--steel-500);
  padding-left: 14px;
  position: relative;
}

.page-news .news-diff__notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--line-strong);
}

.page-news .news-diff__media {
  margin: 26px 0 0;
}

.page-news .news-diff__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
}

/* ---------- 明细字段 ---------- */
.page-news .news-fields {
  padding-top: 52px;
}

.page-news .news-fields__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-news .news-fields__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-news .news-fields__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--ds-900);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--mist-100);
}

.page-news .news-fields__list .mono {
  font-size: 11px;
  color: var(--steel-500);
}

.page-news .news-fields__note h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--mist-100);
  margin: 0 0 14px;
}

.page-news .news-fields__note ul {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-fields__note li {
  font-size: 14px;
  line-height: 1.78;
  color: var(--steel-500);
  padding-left: 16px;
  position: relative;
}

.page-news .news-fields__note li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-news .news-fields__link {
  font-size: 14px;
  color: var(--steel-500);
  margin: 0;
  line-height: 1.78;
}

/* ---------- 归档 ---------- */
.page-news .news-archive {
  padding-top: 52px;
  padding-bottom: 64px;
}

.page-news .news-archive__media {
  margin: 0 0 30px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-news .news-archive__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .news-archive__ways {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

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

.page-news .news-archive__idx {
  display: inline-block;
  font-size: 12px;
  color: var(--cyan);
  border: 1px solid var(--news-cyan-soft);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  margin-bottom: 12px;
}

.page-news .news-archive__way h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--mist-100);
  margin: 0 0 8px;
}

.page-news .news-archive__way p {
  font-size: 14px;
  line-height: 1.78;
  color: var(--steel-500);
  margin: 0;
}

.page-news .news-archive__foot {
  margin: 30px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel-500);
}

/* ---------- 链接与焦点 ---------- */
.page-news a {
  color: var(--mist-100);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-news a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-news a:focus-visible,
.page-news .news-tl__node:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .news-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-news .news-archive__ways {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

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

@media (min-width: 900px) {
  .page-news .news-hero {
    padding-top: 44px;
  }

  .page-news .news-board {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 44px;
  }

  .page-news .news-rail {
    position: sticky;
    top: 108px;
    align-self: start;
  }

  .page-news .news-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-news .news-rail__item {
    width: 100%;
  }

  .page-news .news-list {
    grid-template-columns: 1.18fr 0.82fr;
    gap: 40px;
    align-items: start;
  }

  .page-news .news-list__col:last-child {
    padding-top: 46px;
  }

  .page-news .news-fields__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 44px;
  }

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

  .page-news .news-diff__media {
    margin-top: 34px;
  }
}

@media (min-width: 1180px) {
  .page-news .news-tl__node {
    flex: 0 0 1fr;
    min-width: 176px;
    flex-grow: 1;
  }

  .page-news .news-list__col:last-child {
    padding-top: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-tl__sum,
  .page-news .news-tl__dot,
  .page-news .news-item,
  .page-news a {
    transition: none;
  }
}