.page-news {
  --news-rail-w: 170px;
  --news-gap: clamp(1.25rem, 3vw, 2rem);
}

/* ---------- 面包屑 ---------- */
.page-news .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 0 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.page-news .crumbs__item {
  color: var(--muted);
  text-decoration: none;
}
.page-news .crumbs a.crumbs__item:hover {
  color: var(--cyan);
}
.page-news .crumbs__item[aria-current="page"] {
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: clamp(1.5rem, 5vw, 3.25rem) 0 clamp(1.25rem, 3vw, 2.25rem);
  background:
    radial-gradient(120% 140% at 8% 0%, rgba(0, 229, 200, 0.10), transparent 58%),
    radial-gradient(90% 120% at 100% 8%, rgba(183, 156, 255, 0.10), transparent 60%);
}
.page-news .news-hero__inner {
  display: grid;
  gap: 1.5rem;
  align-items: end;
}
.page-news .news-hero h1 {
  margin: 0.65rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7.2vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--text);
  max-width: 20ch;
}
.page-news .news-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 52ch;
  font-size: clamp(0.95rem, 1.8vw, 1.0625rem);
  line-height: 1.8;
  color: var(--muted);
}
.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.6rem 0 0;
}
.page-news .news-hero__stamp {
  position: relative;
  justify-self: start;
  display: grid;
  place-items: center;
  width: 118px;
  height: 118px;
  margin: 0;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(0, 229, 200, 0.16), rgba(10, 20, 40, 0) 78%);
  color: var(--cyan);
  font-family: var(--font-mono);
  text-align: center;
}
.page-news .news-hero__stamp::before {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: inherit;
  border: 1px dashed rgba(0, 229, 200, 0.35);
}
.page-news .news-hero__stamp-num {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}
.page-news .news-hero__stamp-label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

/* ---------- 主布局 ---------- */
.page-news .news-layout {
  display: grid;
  gap: var(--news-gap);
  padding-bottom: var(--pad-y);
}

/* ---------- 章节导航 ---------- */
.page-news .news-rail {
  min-width: 0;
}
.page-news .news-rail__list {
  display: flex;
  gap: 0.5rem;
  margin: 0.65rem 0 0;
  padding: 0 0 0.35rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-news .news-rail__item {
  flex: 0 0 auto;
}
.page-news .news-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 0.8125rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-news .news-rail__link:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}
.page-news .news-rail__link[aria-current="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}
.page-news .news-rail__num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  opacity: 0.9;
}

/* ---------- 内容流 ---------- */
.page-news .news-feed {
  min-width: 0;
  display: grid;
  gap: clamp(2.5rem, 6vw, 4.5rem);
}
.page-news .news-block {
  scroll-margin-top: 7rem;
  min-width: 0;
}
.page-news .news-block__head {
  max-width: 62ch;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}
.page-news .news-block__head .index-label {
  display: block;
  margin: 0 0 0.5rem;
  color: var(--cyan);
}
.page-news .news-block__head .section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--text);
}
.page-news .news-block__lead {
  margin: 0.7rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 置顶公告 ---------- */
.page-news .news-pinned {
  display: grid;
  gap: 1.25rem;
}
.page-news .news-pinned__figure .media {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-news .news-pinned__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .news-pinned__figure .media__cap {
  margin: 0.65rem 0 0;
  font-size: 0.75rem;
  line-height: 1.65;
  color: var(--muted);
}
.page-news .news-pinned__cards {
  display: grid;
  gap: 0.9rem;
}
.page-news .news-pinned__card {
  position: relative;
  padding: 1.1rem 1.25rem 1.15rem 1.4rem;
  border-radius: var(--r-md);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}
.page-news .news-pinned__card:hover {
  border-left-color: var(--cyan);
  background: var(--panel-2);
  transform: translateX(2px);
}
.page-news .news-pinned__card--lead {
  border-left-color: var(--amber);
  background:
    linear-gradient(100deg, rgba(255, 138, 61, 0.10), rgba(15, 31, 61, 0) 62%),
    var(--panel);
}
.page-news .news-pinned__card--lead:hover {
  border-left-color: var(--amber);
}
.page-news .news-pinned__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
}
.page-news .news-pinned__ver {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
}
.page-news .news-pinned__card--lead .news-pinned__ver {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--amber);
}
.page-news .news-pinned__title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
}
.page-news .news-pinned__body {
  margin: 0.45rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}
.page-news .news-pinned__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  margin: 0.85rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.page-news .news-pinned__foot span::before {
  content: "▍";
  margin-right: 0.35rem;
  color: var(--line);
}
.page-news .news-pinned__card--lead .news-pinned__foot span:first-child::before {
  color: var(--amber);
}

/* ---------- 版本发布记录 ---------- */
.page-news .version-split {
  display: grid;
  gap: 1.5rem;
}
.page-news .version-split__figure .media {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-news .version-split__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.page-news .version-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 1rem;
  padding: 0.9rem 1rem;
  border-radius: var(--r-md);
  background: var(--panel);
  border: 1px solid transparent;
  border-left: 3px solid var(--line);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.page-news .version-item:hover {
  border-left-color: var(--cyan);
  background: var(--panel-2);
}
.page-news .version-item__no {
  grid-column: 1;
  grid-row: 1 / span 3;
  align-self: start;
  padding-top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--cyan);
}
.page-news .version-item__name,
.page-news .version-item__scope,
.page-news .version-item__time {
  grid-column: 2;
}
.page-news .version-item__name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
}
.page-news .version-item__scope {
  margin-top: 0.15rem;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--muted);
}
.page-news .version-item__time {
  margin-top: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 检索规则 ---------- */
.page-news .rules-grid {
  display: grid;
  gap: 0.9rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}
.page-news .rule-card {
  padding: 1.15rem 1.2rem;
  border-radius: var(--r-md);
  background: var(--panel);
  border: 1px solid var(--line);
}
.page-news .rule-card__no {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--violet);
}
.page-news .rule-card__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.page-news .rule-card__body {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}
.page-news .rules-timeline {
  display: grid;
  gap: 1.25rem;
}
.page-news .rules-timeline__figure .media {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-news .rules-timeline__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .rules-timeline__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-news .rules-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 0.9rem;
  align-items: start;
}
.page-news .rules-timeline__item::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 16px;
  bottom: -1rem;
  width: 1px;
  background: var(--line);
}
.page-news .rules-timeline__item:last-child::before {
  display: none;
}
.page-news .rules-timeline__dot {
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 200, 0.18);
}
.page-news .rules-timeline__dot--amber {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 138, 61, 0.18);
}
.page-news .rules-timeline__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}
.page-news .rules-timeline__text strong {
  font-weight: 600;
  color: var(--text);
}
.page-news .rules-note {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0.9rem 1.1rem;
  border-radius: var(--r-md);
  border-left: 3px solid var(--amber);
  background: rgba(255, 138, 61, 0.08);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 季度兼容性报告 ---------- */
.page-news .report-scroll {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(230px, 76%);
  gap: 1rem;
  overflow-x: auto;
  padding: 0.25rem 0.25rem 1rem;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}
.page-news .report-card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.15rem 1.15rem 1.35rem;
  border-radius: var(--r-lg);
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.page-news .report-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}
.page-news .report-card__badge {
  align-self: flex-start;
  padding: 0.2rem 0.65rem;
  border-radius: var(--r-pill);
  background: rgba(0, 229, 200, 0.12);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
}
.page-news .report-card .media {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-news .report-card .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .report-card__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
}
.page-news .report-card__body {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 专题观察 ---------- */
.page-news .feature-list {
  display: grid;
  gap: 0.75rem;
}
.page-news .feature-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1.1rem 1.2rem;
  border-radius: var(--r-md);
  background: var(--panel);
  border: 1px solid transparent;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}
.page-news .feature-item:hover {
  background: var(--panel-2);
  border-color: var(--line);
}
.page-news .feature-item__no {
  padding-top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--violet);
  white-space: nowrap;
}
.page-news .feature-item__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}
.page-news .feature-item__body {
  margin: 0.4rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 回看与归档 ---------- */
.page-news .archive-grid {
  display: grid;
  gap: 0.9rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}
.page-news .archive-card {
  padding: 1.2rem 1.2rem 1.35rem;
  border-radius: var(--r-md);
  background: var(--panel);
  border: 1px solid var(--line);
}
.page-news .archive-card__badge {
  display: inline-block;
  padding: 0.22rem 0.7rem;
  border-radius: var(--r-pill);
  background: rgba(0, 229, 200, 0.13);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}
.page-news .archive-card__badge--amber {
  background: rgba(255, 138, 61, 0.14);
  color: var(--amber);
}
.page-news .archive-card__badge--violet {
  background: rgba(183, 156, 255, 0.14);
  color: var(--violet);
}
.page-news .archive-card__title {
  margin: 0.85rem 0 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.page-news .archive-card__body {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}
.page-news .archive-next {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(0, 229, 200, 0.09), rgba(183, 156, 255, 0.07) 70%, transparent),
    var(--panel-2);
}
.page-news .archive-next__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text);
}
.page-news .archive-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.15rem 0 0;
}

/* ---------- 断点 ---------- */
@media (max-width: 560px) {
  .page-news .news-hero__stamp {
    width: 96px;
    height: 96px;
  }
  .page-news .news-hero__stamp-num {
    font-size: 1.6rem;
  }
}

@media (min-width: 720px) {
  .page-news .rules-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .archive-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .report-scroll {
    grid-auto-columns: minmax(250px, 300px);
  }
}

@media (min-width: 820px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 3rem;
  }
  .page-news .news-hero__stamp {
    justify-self: end;
  }
  .page-news .news-pinned {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }
  .page-news .version-split {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 2.5rem;
    align-items: start;
  }
  .page-news .version-split__figure {
    order: 2;
  }
  .page-news .rules-timeline {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 2.5rem;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }
  .page-news .news-rail__inner {
    position: sticky;
    top: 6rem;
  }
  .page-news .news-rail__list {
    flex-direction: column;
    gap: 0.35rem;
    overflow: visible;
    padding: 0;
  }
  .page-news .news-rail__link {
    width: 100%;
    border-color: transparent;
    border-radius: var(--r-sm);
    border-left: 2px solid transparent;
    background: transparent;
  }
  .page-news .news-rail__link:hover {
    background: var(--panel);
    border-left-color: var(--cyan);
  }
  .page-news .news-rail__link[aria-current="true"] {
    color: var(--cyan);
    background: var(--panel);
    border-left-color: var(--cyan);
  }
  .page-news .news-rail__num {
    margin-right: 0.5rem;
    color: var(--violet);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}