.page-news {
  --news-rail-top: 92px;
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding-block: clamp(28px, 4.5vw, 56px) clamp(28px, 4vw, 48px);
  margin-top: clamp(16px, 2.4vw, 28px);
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(46, 92, 120, 0.42) 0%, rgba(10, 31, 46, 0) 62%),
    radial-gradient(60% 70% at 96% 100%, rgba(244, 129, 60, 0.16) 0%, rgba(10, 31, 46, 0) 70%);
  pointer-events: none;
}

.page-news .news-hero > * {
  position: relative;
}

.page-news .news-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 64px);
  line-height: 1.06;
  letter-spacing: 0.03em;
  color: var(--ice);
  margin: 14px 0 0;
  max-width: 20ch;
}

.page-news .news-lede {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 46ch;
  font-size: clamp(16px, 1.3vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  border-top: 1px solid var(--ridge);
}

.page-news .news-stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ridge);
}

.page-news .news-stat dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
  flex: 0 0 auto;
  min-width: 84px;
}

.page-news .news-stat dd {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ice);
}

@media (min-width: 720px) {
  .page-news .news-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .news-stat {
    flex-direction: column;
    gap: 6px;
    padding: 18px 20px 18px 0;
    border-bottom: none;
    border-left: 1px solid var(--ridge);
    padding-left: 20px;
  }
  .page-news .news-stat:first-child {
    border-left: none;
    padding-left: 0;
  }
}

/* ---------- 主体布局 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(32px, 5vw, 60px);
}

@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-news .news-rail {
    grid-column: 1 / span 3;
  }
  .page-news .news-stream {
    grid-column: 4 / span 9;
  }
}

/* ---------- 左侧栏目索引 ---------- */
.page-news .news-rail {
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
  align-content: start;
  min-width: 0;
}

@media (min-width: 960px) {
  .page-news .news-rail {
    position: sticky;
    top: var(--news-rail-top);
    max-height: calc(100vh - var(--news-rail-top) - 32px);
    overflow-y: auto;
    padding-right: 4px;
  }
}

.page-news .rail-panel {
  border: var(--line);
  background: var(--card);
  box-shadow: var(--shadow-hard);
  padding: 18px 16px 16px;
}

.page-news .rail-label {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sunset);
}

.page-news .news-rail .toc-list {
  display: grid;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-rail .toc-item {
  border-top: 1px solid rgba(46, 92, 120, 0.55);
}

.page-news .news-rail .toc-item:first-child {
  border-top: none;
}

.page-news .news-rail .toc-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 8px 11px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ice);
  text-decoration: none;
  border-left: 3px solid transparent;
  padding-left: 10px;
  transition: background 140ms ease, border-color 140ms ease, color 140ms ease;
}

.page-news .news-rail .toc-link:hover {
  background: var(--dusk);
  border-left-color: var(--neon);
}

.page-news .news-rail .toc-link[aria-current="true"] {
  background: var(--dusk);
  border-left-color: var(--sunset);
  color: var(--sand);
}

.page-news .rail-count {
  font-size: 12px;
  color: var(--mist);
  flex: none;
}

.page-news .rail-progress {
  margin: 0;
  border: var(--line);
  background: var(--card);
  box-shadow: var(--shadow-hard);
}

.page-news .rail-progress img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: var(--line);
}

.page-news .rail-progress-note {
  padding: 14px 16px;
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 文章流 ---------- */
.page-news .news-stream {
  min-width: 0;
}

/* 首条特写 */
.page-news .news-feature {
  border: var(--line);
  background: var(--card);
  box-shadow: var(--shadow-hard-lg);
  margin-bottom: clamp(30px, 4.5vw, 52px);
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.page-news .news-feature:hover,
.page-news .news-feature:focus-visible {
  transform: translate(-3px, -3px);
  outline: none;
  box-shadow: 0 0 0 2px var(--neon), 16px 16px 0 rgba(4, 15, 23, 0.65);
}

.page-news .feature-media img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: var(--line);
}

.page-news .feature-body {
  padding: clamp(20px, 3vw, 36px);
}

.page-news .feature-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-news .feature-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.1vw, 40px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--ice);
}

.page-news .feature-summary {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 栏目区块 ---------- */
.page-news .obs-section {
  padding-block: clamp(28px, 4.5vw, 52px);
  border-top: var(--line);
}

.page-news .obs-section:first-of-type {
  border-top: none;
  padding-top: 0;
}

.page-news .obs-section-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 2vw, 22px);
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-news .obs-no {
  flex: none;
  margin: 4px 0 0;
  padding: 5px 9px;
  font-size: 13px;
  line-height: 1;
  color: var(--sunset);
  border: 2px solid var(--sunset);
}

.page-news .obs-section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.6vw, 32px);
  letter-spacing: 0.03em;
  line-height: 1.2;
  color: var(--ice);
}

.page-news .obs-note {
  margin: 8px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 条目 ---------- */
.page-news .obs-list {
  display: grid;
  gap: clamp(12px, 1.6vw, 18px);
}

.page-news .obs-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: clamp(16px, 2vw, 22px) clamp(16px, 2.2vw, 24px);
  background: var(--card);
  border: var(--line);
  box-shadow: var(--shadow-hard);
  transition: background 200ms ease, box-shadow 200ms ease, transform 200ms ease;
}

.page-news .obs-item:hover,
.page-news .obs-item:focus-visible {
  background: var(--dusk);
  box-shadow: var(--shadow-hard-lg);
  transform: translate(-2px, -2px);
  outline: none;
}

.page-news .obs-item:focus-visible {
  box-shadow: 0 0 0 2px var(--neon), var(--shadow-hard-lg);
}

.page-news .obs-main {
  min-width: 0;
}

.page-news .obs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  list-style: none;
  margin: 0 0 10px;
  padding: 0;
}

.page-news .obs-tags .chip {
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  padding: 2px 9px;
}

.page-news .obs-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.75vw, 21px);
  letter-spacing: 0.02em;
  line-height: 1.42;
  color: var(--ice);
}

.page-news .obs-summary {
  margin: 8px 0 0;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 200ms ease;
}

.page-news .obs-item:hover .obs-summary,
.page-news .obs-item:focus-visible .obs-summary {
  -webkit-line-clamp: unset;
  display: block;
  overflow: visible;
  color: var(--sand);
}

.page-news .obs-spark {
  display: none;
  width: 100%;
  height: 34px;
  overflow: visible;
}

.page-news .obs-spark polyline {
  fill: none;
  stroke: var(--neon);
  stroke-width: 2;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

@media (min-width: 600px) {
  .page-news .obs-item {
    grid-template-columns: minmax(0, 1fr) 104px;
  }
  .page-news .obs-spark {
    display: block;
  }
}

/* ---------- 图文并排区块 ---------- */
.page-news .obs-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(18px, 2.4vw, 28px);
}

@media (min-width: 780px) {
  .page-news .obs-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-news .obs-grid--flip {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-news .side-media {
  margin: 0;
  border: var(--line);
  background: var(--card);
  box-shadow: var(--shadow-hard);
}

.page-news .side-media img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: var(--line);
}

.page-news .side-media figcaption {
  padding: 13px 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 更新与订阅 ---------- */
.page-news .update-table-wrap {
  overflow-x: auto;
  border: var(--line);
  background: var(--card);
  box-shadow: var(--shadow-hard);
}

.page-news .update-table {
  min-width: 560px;
  margin: 0;
  width: 100%;
}

.page-news .update-table th,
.page-news .update-table td {
  padding: 13px 16px;
  text-align: left;
  white-space: nowrap;
}

.page-news .update-table thead th {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sunset);
  border-bottom: 2px solid var(--ridge);
}

.page-news .update-table tbody th {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.03em;
  color: var(--ice);
}

.page-news .update-table tbody td {
  font-size: 14px;
  color: var(--mist);
}

.page-news .update-table tbody tr + tr th,
.page-news .update-table tbody tr + tr td {
  border-top: 1px solid rgba(46, 92, 120, 0.6);
}

.page-news .update-table .is-num {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--neon);
}

.page-news .subscribe-panel {
  margin-top: clamp(22px, 3vw, 32px);
  padding: clamp(20px, 2.8vw, 30px);
  border: var(--line);
  border-left: 6px solid var(--sunset);
  background: linear-gradient(180deg, rgba(27, 59, 85, 0.85) 0%, rgba(20, 56, 79, 0.85) 100%);
  box-shadow: var(--shadow-hard);
}

.page-news .subscribe-lede {
  margin: 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ice);
}

.page-news .inline-link {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition: color 140ms ease;
}

.page-news .inline-link:hover,
.page-news .inline-link:focus-visible {
  color: var(--sand);
  outline: none;
}

.page-news .inline-link:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-news .subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-feature,
  .page-news .obs-item,
  .page-news .obs-summary,
  .page-news .news-rail .toc-link,
  .page-news .inline-link {
    transition: none;
  }
  .page-news .news-feature:hover,
  .page-news .news-feature:focus-visible,
  .page-news .obs-item:hover,
  .page-news .obs-item:focus-visible {
    transform: none;
  }
}