.page-news {
  display: block;
}

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

/* ---------- 页首 ---------- */
.page-news .news-hero {
  padding: clamp(26px, 5vw, 56px) 0 0;
  border-bottom: 2px solid var(--grid-blue);
  background:
    radial-gradient(120% 130% at 88% 0%, rgba(217, 164, 65, 0.10), transparent 58%),
    radial-gradient(95% 110% at 0% 100%, rgba(214, 69, 59, 0.08), transparent 62%);
}

.page-news .news-hero__intro {
  max-width: 780px;
}

.page-news .news-hero__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 14px;
}

.page-news .news-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(27px, 5vw, 44px);
  line-height: 1.28;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  margin: 0 0 18px;
}

.page-news .news-hero__lead {
  margin: 0 0 clamp(20px, 3vw, 28px);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-news .news-hero__media {
  margin: 0 0 -2px;
  border-top: 3px solid var(--gold);
  border-left: 0;
  border-right: 0;
  border-bottom: 0;
}

.page-news .news-hero__media img {
  width: 100%;
  object-fit: cover;
}

/* ---------- 分类标签条 ---------- */
.page-news .news-tabs {
  background: var(--ink-800);
  border-bottom: 2px solid var(--grid-blue);
}

.page-news .news-tabs__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 12px 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-news .news-tabs__list::-webkit-scrollbar {
  display: none;
}

.page-news .news-tabs__item {
  flex: 0 0 auto;
}

.page-news .news-tab {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  background: var(--ink-700);
  border: 2px solid var(--grid-blue);
  border-radius: var(--radius);
  text-decoration: none;
  white-space: nowrap;
  transition: color 140ms ease, background-color 140ms ease, border-color 140ms ease;
}

.page-news .news-tab:hover,
.page-news .news-tab:focus-visible {
  color: var(--ink-900);
  background: var(--gold);
  border-color: var(--gold-bright);
}

.page-news .news-tab--active {
  color: var(--ink-900);
  background: var(--gold);
  border-color: var(--gold);
}

/* ---------- 01 条目流 ---------- */
.page-news .feed {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--grid-blue);
}

.page-news .feed__item {
  border-bottom: 2px solid rgba(62, 90, 122, 0.35);
}

.page-news .feed__article {
  position: relative;
  padding: 18px 16px 18px 20px;
  transition: background-color 160ms ease;
}

.page-news .feed__item:hover .feed__article,
.page-news .feed__item:focus-within .feed__article {
  background: var(--ink-700);
}

.page-news .feed__bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--grid-blue);
}

.page-news .feed__item--gold .feed__bar {
  background: var(--gold);
}

.page-news .feed__item--cinnabar .feed__bar {
  background: var(--cinnabar);
}

.page-news .feed__item--cool .feed__bar {
  background: var(--accent-cool);
}

.page-news .feed__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-news .feed__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.page-news .feed__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  margin: 0 0 8px;
}

.page-news .feed__title a {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 140ms ease, border-color 140ms ease;
}

.page-news .feed__title a:hover,
.page-news .feed__title a:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--gold);
}

.page-news .feed__excerpt {
  margin: 0;
  max-width: 74ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-news .feed__hint {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 180ms ease, opacity 180ms ease, margin-top 180ms ease;
  margin-top: 0;
}

.page-news .feed__hint > span {
  display: block;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-news .feed__item:hover .feed__hint,
.page-news .feed__item:focus-within .feed__hint {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 10px;
}

/* ---------- 02 观察周报 ---------- */
.page-news .report-card {
  border: 3px solid var(--grid-blue);
  background: var(--ink-700);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-news .report-card__main {
  padding: clamp(20px, 3vw, 32px);
}

.page-news .report-card__issue {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
  margin: 0 0 10px;
}

.page-news .report-card__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 3vw, 26px);
  line-height: 1.4;
  color: var(--text-primary);
  margin: 0 0 12px;
}

.page-news .report-card__text {
  margin: 0;
  max-width: 76ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.page-news .report-card__stats {
  list-style: none;
  margin: 22px 0 18px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-news .report-card__links {
  margin: 0;
  font-size: 13px;
  color: var(--text-secondary);
}

.page-news .report-card__links a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 164, 65, 0.5);
}

.page-news .report-card__links a:hover,
.page-news .report-card__links a:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--gold-bright);
}

.page-news .report-card__figure {
  margin: 0;
  border: 0;
  border-top: 3px solid var(--grid-blue);
  border-radius: 0;
  background: var(--table-base);
}

.page-news .report-card__figure img {
  width: 100%;
  object-fit: cover;
}

/* ---------- 03 更新记录 ---------- */
.page-news .changelog-layout {
  display: grid;
  gap: 28px;
}

.page-news .changelog {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--grid-blue);
}

.page-news .changelog__row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 2px solid rgba(62, 90, 122, 0.35);
  transition: background-color 160ms ease;
}

.page-news .changelog__row:hover {
  background: var(--ink-700);
}

.page-news .changelog__no {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-top: 3px;
}

.page-news .changelog__date {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
  margin: 0 0 6px;
}

.page-news .changelog__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.page-news .changelog__text {
  margin: 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-news .changelog-figure {
  margin: 0;
  border: 3px solid var(--grid-blue);
  background: var(--table-base);
}

.page-news .changelog-figure img {
  width: 100%;
  object-fit: cover;
}

/* ---------- 04 专题系列 ---------- */
.page-news .topics-banner {
  margin: 0 0 24px;
  border: 3px solid var(--grid-blue);
}

.page-news .topics-banner img {
  width: 100%;
  object-fit: cover;
}

.page-news .topic-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
}

.page-news .topic-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 18px 18px;
  background: var(--ink-700);
  border: 3px solid var(--grid-blue);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

.page-news .topic-card:hover,
.page-news .topic-card:focus-visible {
  border-color: var(--gold);
  box-shadow: var(--shadow-hard);
}

.page-news .topic-card__count {
  position: absolute;
  top: -3px;
  right: -3px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  background: var(--gold);
  color: var(--ink-900);
  border-bottom-left-radius: var(--radius);
}

.page-news .topic-card__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 1.35;
  color: var(--text-primary);
  margin: 0;
}

.page-news .topic-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
  flex: 1 1 auto;
}

.page-news .topic-card__updated {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--accent-cool);
}

/* ---------- 05 往期归档 ---------- */
.page-news .archive-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
}

.page-news .archive-col {
  padding: 16px;
  background: var(--ink-700);
  border: 2px solid var(--grid-blue);
}

.page-news .archive-col__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 14px;
}

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

.page-news .archive-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
  padding-bottom: 9px;
  border-bottom: 1px dashed rgba(62, 90, 122, 0.5);
}

.page-news .archive-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .archive-list em {
  font-style: normal;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.page-news .archive-more {
  margin-top: 18px;
  background: var(--ink-700);
  border: 2px solid var(--grid-blue);
}

.page-news .archive-more > summary {
  padding: 14px 16px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--gold);
  list-style: none;
}

.page-news .archive-more > summary::-webkit-details-marker {
  display: none;
}

.page-news .archive-more > summary::after {
  content: "+";
  float: right;
  color: var(--gold-bright);
}

.page-news .archive-more[open] > summary::after {
  content: "–";
}

.page-news .archive-more__body {
  padding: 0 16px 18px;
}

.page-news .archive-more__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.page-news .archive-more__list .mono {
  display: inline-block;
  min-width: 82px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--accent-cool);
}

.page-news .archive-help {
  margin: 22px 0 0;
  max-width: 74ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.page-news .archive-help a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 164, 65, 0.5);
}

.page-news .archive-help a:hover,
.page-news .archive-help a:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--gold-bright);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .feed__article {
    padding: 22px 22px 22px 26px;
  }

  .page-news .feed__title {
    font-size: 19px;
  }

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

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

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

@media (min-width: 900px) {
  .page-news .news-tabs {
    position: sticky;
    top: 64px;
    z-index: 20;
  }

  .page-news .news-tabs__list {
    justify-content: center;
  }

  .page-news .changelog__row {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 22px;
  }
}

@media (min-width: 1000px) {
  .page-news .changelog-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: 40px;
  }

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

@media (hover: none) {
  .page-news .feed__hint {
    grid-template-rows: 1fr;
    opacity: 1;
    margin-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .feed__article,
  .page-news .feed__hint,
  .page-news .feed__title a,
  .page-news .changelog__row,
  .page-news .topic-card,
  .page-news .news-tab {
    transition: none;
  }
}