.page-news {
  --news-gap: clamp(20px, 4vw, 44px);
  --news-line: 2px solid var(--ink);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: 22px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

/* ---------- 首屏 ---------- */
.page-news .topics-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding-top: 18px;
  padding-bottom: 40px;
  border-bottom: var(--edge);
}

.page-news .topics-h1 {
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(34px, 5.4vw, 60px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 14px 0 0;
}

.page-news .topics-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.85;
}

.page-news .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: var(--edge-2);
}

.page-news .hero-stats dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-news .hero-stats dd {
  margin: 6px 0 0;
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-news .topics-hero__media {
  margin: 0;
}

.page-news .topics-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

/* ---------- 脉冲带 ---------- */
.page-news .pulse-strip {
  color: var(--orange);
  background: var(--paper-2);
  border-top: var(--edge-2);
  border-bottom: var(--edge-2);
}

.page-news .pulse-strip svg {
  display: block;
  width: 100%;
  height: 56px;
}

.page-news .pulse-line {
  stroke-dasharray: 7 9;
}

.page-news .pulse-strip:hover .pulse-line,
.page-news .pulse-strip:focus-within .pulse-line {
  animation: news-flow 3s linear infinite;
}

@keyframes news-flow {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -160; }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pulse-strip:hover .pulse-line,
  .page-news .pulse-strip:focus-within .pulse-line {
    animation: none;
  }
}

/* ---------- 专题索引 ---------- */
.page-news .index-note {
  margin-top: 14px;
}

.page-news .topic-tags {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-news .topic-tag {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 118px;
  padding: 18px 18px 20px;
  background: var(--snow);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.page-news .topic-tag__no {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-news .topic-tag__name {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-news .topic-tag__meta {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.page-news .topic-tag:hover,
.page-news .topic-tag:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-lg);
  background: var(--sky);
  color: var(--snow);
}

.page-news .topic-tag:hover .topic-tag__no,
.page-news .topic-tag:focus-visible .topic-tag__no,
.page-news .topic-tag:hover .topic-tag__meta,
.page-news .topic-tag:focus-visible .topic-tag__meta {
  color: var(--snow);
}

.page-news .topic-tag:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 本轮更新 ---------- */
.page-news .update-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  margin-top: 30px;
}

.page-news .update-flow__aside .media {
  margin: 12px 0 0;
}

.page-news .update-flow__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--teal);
  border-left: 3px solid var(--orange);
  padding-left: 12px;
}

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

.page-news .update-item {
  position: relative;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  padding: 20px 0;
  border-bottom: var(--news-line);
}

.page-news .update-item::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 18px;
  bottom: 18px;
  width: 3px;
  background: var(--orange);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.18s ease;
}

.page-news .update-item:hover::before,
.page-news .update-item:focus-within::before {
  transform: scaleY(1);
}

.page-news .update-item__no {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--sky);
  padding-top: 4px;
}

.page-news .update-item__title {
  margin: 0;
  font-family: var(--display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
}

.page-news .update-item__body > p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-news .update-item__foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}

.page-news .update-item__time {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--teal);
}

.page-news .update-item__title::after {
  content: "→";
  display: inline-block;
  margin-left: 8px;
  color: var(--orange);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.page-news .update-item:hover .update-item__title::after,
.page-news .update-item:focus-within .update-item__title::after {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- 数据观察 ---------- */
.page-news .data-lane {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: 48px;
  padding-top: 34px;
  border-top: var(--edge);
}

.page-news .data-lane .media {
  margin: 0;
}

.page-news .data-points {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .data-points li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: var(--news-line);
  font-size: 15px;
  line-height: 1.8;
}

.page-news .data-points .mono {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
  padding-top: 4px;
}

.page-news .data-lane__link {
  margin: 20px 0 0;
  font-weight: 700;
}

.page-news .data-lane__link a {
  color: var(--sky);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-news .data-lane__link a:hover {
  color: var(--orange);
}

/* ---------- 版本说明 ---------- */
.page-news .version-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  margin-top: 28px;
}

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

.page-news .ver-item {
  background: var(--snow);
  border: var(--edge);
  margin-bottom: 14px;
}

.page-news .ver-item[open] {
  box-shadow: var(--shadow-hard);
}

.page-news .ver-item__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  background: var(--paper-2);
  cursor: pointer;
  list-style: none;
  transition: background-color 0.18s ease, color 0.18s ease;
}

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

.page-news .ver-item__head:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: -3px;
}

.page-news .ver-item__code {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.page-news .ver-item__label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-news .ver-item__time {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--sky);
}

.page-news .ver-item[open] .ver-item__head {
  background: var(--sky);
  color: var(--snow);
}

.page-news .ver-item[open] .ver-item__label,
.page-news .ver-item[open] .ver-item__time {
  color: var(--snow);
}

.page-news .ver-item__body {
  padding: 16px 16px 20px;
}

.page-news .ver-item__body > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-news .ver-points {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .ver-points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
}

.page-news .ver-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--orange);
}

.page-news .ver-item__link {
  margin: 16px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news .ver-item__link a {
  color: var(--sky);
}

/* ---------- 服务公告 ---------- */
.page-news .notice-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-news .notice {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 20px 18px 22px;
  background: var(--snow);
}

.page-news .notice__title {
  margin: 0;
  font-family: var(--display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
}

.page-news .notice p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-news .notice__time {
  margin-top: auto;
  padding-top: 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--teal);
}

.page-news .notice-more {
  margin: 24px 0 0;
  font-weight: 700;
}

.page-news .notice-more a {
  color: var(--sky);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-news .notice-more a:hover {
  color: var(--orange);
}

/* ---------- 追更方式 ---------- */
.page-news .follow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 28px;
}

.page-news .follow-card {
  margin: 0;
  padding: 22px 18px 24px;
  background: var(--snow);
}

.page-news .follow-card__no {
  display: block;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-news .follow-card__title {
  margin: 10px 0 0;
  font-family: var(--display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
}

.page-news .follow-card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-news .follow-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin: 30px 0 0;
  padding-top: 20px;
  border-top: var(--edge);
  font-size: 15px;
}

.page-news .follow-links__k {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--teal);
}

.page-news .follow-links a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  padding-bottom: 2px;
}

.page-news .follow-links a:hover,
.page-news .follow-links a:focus-visible {
  color: var(--sky);
}

.page-news .follow-links a:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-news .topic-tags {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-news .topics-hero {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: end;
    padding-bottom: 56px;
  }

  .page-news .topic-tags {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .update-flow {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 48px;
    align-items: start;
  }

  .page-news .update-flow__aside {
    position: sticky;
    top: 96px;
  }

  .page-news .update-item:nth-child(even) {
    margin-left: 7%;
  }

  .page-news .update-item:nth-child(odd) {
    margin-right: 4%;
  }

  .page-news .data-lane {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: center;
  }

  .page-news .version-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

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

@media (min-width: 1100px) {
  .page-news .update-item {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 18px;
  }

  .page-news .update-item__title {
    font-size: 21px;
  }
}