.page-news {
  --rail-w: 220px;
  background: var(--paper);
  color: var(--graphite);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
}

.page-news * {
  box-sizing: border-box;
}

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

.page-news h2,
.page-news h3 {
  margin: 0;
  color: var(--navy);
  font-family: var(--font-sans);
  line-height: 1.32;
  letter-spacing: -0.01em;
}

.page-news p {
  margin: 0 0 12px;
}

.page-news p:last-child {
  margin-bottom: 0;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--navy);
  color: var(--ice);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: var(--blueprint);
  background-size: 56px 56px;
  opacity: 0.75;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  top: -45%;
  right: -20%;
  z-index: -1;
  width: 62%;
  height: 190%;
  background: linear-gradient(165deg, rgba(200, 16, 46, 0.62), rgba(200, 16, 46, 0) 68%);
  transform: rotate(16deg);
}

.page-news .news-hero__inner {
  position: relative;
  padding-top: 24px;
  padding-bottom: 42px;
}

.page-news .news-hero .breadcrumb__link {
  color: var(--mist);
}

.page-news .news-hero .breadcrumb__sep {
  color: rgba(143, 166, 196, 0.72);
}

.page-news .news-hero .breadcrumb__current {
  color: var(--ice);
}

.page-news .news-hero__kicker {
  margin: 22px 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-news .news-hero h1 {
  margin: 0 0 14px;
  max-width: 20ch;
  font-size: clamp(27px, 7.2vw, 50px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.page-news .news-hero .lede {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(220, 230, 242, 0.88);
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-news .news-hero__ver {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ice);
}

/* ---------- 版面 ---------- */
.page-news .news-layout {
  display: block;
}

.page-news .news-rail {
  padding: 22px 0 18px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-rail__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-news .news-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-rail__link {
  display: inline-block;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--navy);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  border-color: var(--maple);
  color: var(--maple);
}

.page-news .news-rail__link.is-current {
  background: var(--maple);
  border-color: var(--maple);
  color: #ffffff;
}

.page-news .news-rail__note {
  display: none;
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

.page-news .news-rail__note a {
  color: var(--maple);
}

.page-news .news-canvas {
  min-width: 0;
  padding: 8px 0 52px;
}

.page-news .news-canvas a {
  color: var(--maple);
  text-underline-offset: 3px;
}

.page-news .news-sec {
  padding: 30px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 108px;
}

.page-news .news-sec:first-child {
  border-top: 0;
  padding-top: 6px;
}

.page-news .news-sec__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  margin-bottom: 22px;
}

.page-news .news-sec__num {
  padding: 1px 6px;
  border: 1px solid rgba(200, 16, 46, 0.38);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--maple);
}

.page-news .news-sec__title {
  font-size: clamp(20px, 4.6vw, 28px);
  font-weight: 800;
}

.page-news .news-sec__hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .news-sec__foot {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--graphite);
}

/* ---------- 图文框 ---------- */
.page-news .news-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--midnight);
  box-shadow: var(--shadow-soft);
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .news-figure figcaption {
  padding: 9px 13px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  background: var(--midnight);
  border-top: 1px solid var(--line-dark);
}

/* ---------- 元信息与标题 ---------- */
.page-news .news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .news-item__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 3.6vw, 21px);
  font-weight: 700;
}

.page-news .news-link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 16, 46, 0.45);
  padding-bottom: 2px;
}

.page-news .news-link:hover,
.page-news .news-link:focus-visible {
  border-bottom-color: var(--maple);
}

/* ---------- 头条 ---------- */
.page-news .lead-grid {
  display: grid;
  gap: 26px;
}

.page-news .lead-main__body {
  padding-top: 16px;
}

.page-news .lead-main__body p {
  font-size: 15px;
}

.page-news .lead-side__item {
  padding: 0 0 0 16px;
  margin-bottom: 24px;
  border-left: 2px solid var(--navy);
}

.page-news .lead-side__item:last-child {
  margin-bottom: 0;
}

.page-news .lead-side__item p {
  font-size: 14px;
  color: var(--graphite);
}

/* ---------- 专题列表 ---------- */
.page-news .topics-grid {
  display: grid;
  gap: 24px;
}

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

.page-news .topic-list__item {
  padding: 16px 0;
  border-top: 1px solid var(--line);
  transition: background 0.18s var(--ease);
}

.page-news .topic-list__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .topic-list__item p {
  font-size: 14px;
  color: var(--graphite);
}

/* ---------- 兼容性观察 ---------- */
.page-news .compat-figure {
  margin-bottom: 26px;
}

.page-news .compat-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .compat-list__item {
  padding-top: 14px;
  border-top: 2px solid var(--line);
}

.page-news .compat-list__item--ok {
  border-top-color: rgba(46, 230, 166, 0.7);
}

.page-news .compat-list__item--watch {
  border-top-color: rgba(242, 184, 75, 0.85);
}

.page-news .compat-list__state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--graphite);
}

.page-news .compat-list__dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.page-news .compat-list__dot--ok {
  background: var(--aurora);
}

.page-news .compat-list__dot--watch {
  background: var(--amber);
}

.page-news .compat-list__item h3 {
  font-size: 16px;
  font-weight: 700;
}

.page-news .compat-list__item p {
  font-size: 14px;
  color: var(--graphite);
}

/* ---------- 归档 ---------- */
.page-news .archive-grid {
  display: grid;
  gap: 28px;
}

.page-news .archive-col__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--maple);
}

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

.page-news .arc-list__item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .arc-list__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber);
}

.page-news .arc-list__name {
  margin: 0 0 2px;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
}

.page-news .arc-list__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--graphite);
}

.page-news .topic-index {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .topic-index__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  color: var(--navy);
}

.page-news .topic-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

.page-news .archive-col__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .archive-figure {
  margin-top: 26px;
}

/* ---------- 更新节奏 ---------- */
.page-news .pulse {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  margin-bottom: 24px;
}

.page-news .pulse__stat {
  padding-top: 10px;
  border-top: 2px solid var(--navy);
}

.page-news .pulse__stat--maple {
  border-top-color: var(--maple);
}

.page-news .pulse__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--navy);
}

.page-news .pulse__stat--maple .pulse__num {
  color: var(--maple);
}

.page-news .pulse__label {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-news .rhythm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 18px;
}

.page-news .rhythm-actions .btn {
  font-family: var(--font-sans);
  cursor: pointer;
}

.page-news .rhythm-note {
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-news .pulse {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-news .compat-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 30px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__inner {
    padding-top: 34px;
    padding-bottom: 58px;
  }

  .page-news .news-hero .lede {
    font-size: 17px;
  }

  .page-news .news-layout {
    display: grid;
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 104px;
    align-self: start;
    padding: 40px 22px 40px 0;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-news .news-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .news-rail__link {
    display: block;
    padding: 8px 0 8px 13px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    font-size: 14px;
    white-space: normal;
  }

  .page-news .news-rail__link:hover,
  .page-news .news-rail__link:focus-visible {
    border-left-color: var(--maple);
  }

  .page-news .news-rail__link.is-current {
    background: transparent;
    border-left-color: var(--maple);
    color: var(--maple);
    font-weight: 700;
  }

  .page-news .news-rail__note {
    display: block;
  }

  .page-news .news-canvas {
    padding: 24px 0 64px;
  }

  .page-news .lead-grid {
    grid-template-columns: 1.45fr minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-news .topics-grid {
    grid-template-columns: 1.5fr minmax(0, 0.85fr);
    gap: 36px;
    align-items: start;
  }

  .page-news .topics-figure {
    position: sticky;
    top: 104px;
  }

  .page-news .archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
  }
}

@media (hover: hover) {
  .page-news .topic-list__item:hover {
    background: rgba(220, 230, 242, 0.45);
  }
}
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