.page-news {
  background: var(--paper);
  color: var(--ink);
}

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

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

.page-news .mono {
  font-family: var(--font-mono);
}

/* ===== 首屏 ===== */
.page-news .news-hero {
  padding: 24px 18px 0;
  background: var(--paper-blue);
  border-bottom: 6px solid var(--night);
}

.page-news .news-hero-wrap {
  max-width: var(--container-max);
  margin: 0 auto;
}

.page-news .breadcrumb {
  margin-bottom: 20px;
  font-size: 13px;
}

.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 6px;
}

.page-news .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--gray);
}

.page-news .breadcrumb a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.page-news .breadcrumb a:hover {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.page-news .news-hero-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.page-news .news-hero-title {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 34px;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.page-news .news-hero-lead {
  margin: 0;
  max-width: 720px;
  font-size: 15px;
  line-height: 1.7;
  color: #3d4045;
}

.page-news .news-hero-figure {
  margin: 20px 0 0;
}

.page-news .news-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--night);
  border-radius: var(--radius);
}

.page-news .news-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 20px;
  background: var(--night);
  border: 2px solid var(--night);
}

.page-news .news-stat {
  padding: 14px 16px;
  background: #3b4e63;
  color: #fff;
}

.page-news .news-stat:last-child {
  grid-column: 1 / -1;
}

.page-news .news-stat-num {
  display: block;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
}

.page-news .news-stat-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  opacity: 0.82;
}

/* ===== 通用区块 ===== */
.page-news .news-section-wrap {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 24px 18px;
}

.page-news .news-section-heading {
  margin-bottom: 24px;
}

.page-news .news-section-heading h2 {
  margin: 0;
  font-size: 28px;
  font-weight: 900;
  line-height: 1.3;
}

.page-news .section-index {
  display: inline-block;
  margin-right: 10px;
  color: var(--accent);
  font-size: 0.8em;
  vertical-align: 0.08em;
}

.page-news .section-sub {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-size: 15px;
  color: #555;
}

/* ===== 最近更新流 ===== */
.page-news .news-stream {
  background: var(--card);
  border-bottom: 6px solid var(--line);
}

.page-news .stream-list {
  display: grid;
  gap: 16px;
}

.page-news .stream-node {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.page-news .stream-node-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  cursor: pointer;
  color: #fff;
  text-align: left;
  font-family: var(--font-sans);
  transition: filter 0.2s ease;
}

.page-news .stream-node-summary:hover {
  filter: brightness(1.07);
}

.page-news .stream-node-new .stream-node-summary {
  background: var(--blue);
}

.page-news .stream-node-updated .stream-node-summary {
  background: var(--green);
}

.page-news .stream-node-archived .stream-node-summary {
  background: var(--gray);
}

.page-news .stream-batch {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.page-news .stream-date {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
}

.page-news .stream-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.page-news .status-new {
  background: #fff;
  color: var(--blue);
}

.page-news .status-updated {
  background: #fff;
  color: var(--green);
}

.page-news .status-archived {
  background: #fff;
  color: var(--gray);
}

.page-news .stream-count {
  margin-left: auto;
  padding: 2px 10px;
  font-size: 12px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.92);
}

.page-news .stream-node-body {
  padding: 16px 18px;
}

.page-news .stream-node-body[data-open="false"] {
  display: none;
}

.page-news .stream-node-body h3 {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 900;
}

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

.page-news .stream-change-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  padding: 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.page-news .change-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}

.page-news .tag-when { background: var(--tag-red); }
.page-news .tag-nav { background: var(--tag-blue); }
.page-news .tag-index { background: var(--tag-gold); color: var(--ink); }
.page-news .tag-help { background: var(--tag-violet); }
.page-news .tag-archive { background: var(--gray); }
.page-news .tag-tags { background: var(--tag-green); }
.page-news .tag-filter { background: var(--tag-blue); }
.page-news .tag-log { background: var(--green); }
.page-news .tag-version { background: var(--night); }

.page-news .stream-compare-figure {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 24px 0 0;
  padding: 14px;
  background: var(--paper-yellow);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.page-news .stream-compare-figure img {
  width: 100%;
  max-width: 300px;
  height: auto;
  align-self: center;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.page-news .stream-compare-figure figcaption {
  font-size: 13px;
  color: #555;
  line-height: 1.6;
}

/* ===== 年度归档轴 ===== */
.page-news .news-archive {
  background: var(--paper-green);
  border-bottom: 6px solid var(--night);
}

.page-news .archive-layout {
  display: grid;
  gap: 18px;
}

.page-news .archive-rail-art img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border: 1px solid var(--night);
  border-radius: var(--radius-lg);
}

.page-news .archive-year-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-news .archive-year {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--night);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-news .archive-year-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 16px;
  border: 0;
  cursor: pointer;
  background: var(--card);
  text-align: left;
  font-family: var(--font-sans);
  transition: background 0.2s ease;
}

.page-news .archive-year-summary:hover {
  background: var(--paper);
}

.page-news .archive-year-label {
  font-size: 26px;
  font-weight: 900;
  color: var(--ink);
}

.page-news .archive-year-meta {
  font-size: 12px;
  color: #666;
}

.page-news .archive-year-body {
  padding: 14px 16px;
  border-top: 1px solid var(--line);
}

.page-news .archive-year-body[data-open="false"] {
  display: none;
}

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

.page-news .archive-batch-list li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.6;
}

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

.page-news .archive-batch-list p {
  margin: 0;
  color: #3d4045;
}

.page-news .archive-batch {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

.page-news .archive-batch-none {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gray);
  white-space: nowrap;
}

/* ===== 版本里程碑 ===== */
.page-news .news-versions {
  background: var(--paper-pink);
  border-bottom: 6px solid var(--line);
}

.page-news .version-layout {
  display: grid;
  gap: 20px;
}

.page-news .version-figure img {
  width: 100%;
  height: auto;
  border: 1px solid var(--night);
  border-radius: var(--radius-lg);
}

.page-news .version-card-grid {
  display: grid;
  gap: 16px;
}

.page-news .version-card {
  padding: 20px;
  background: var(--card);
  border-top: 6px solid var(--gray);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.page-news .version-card.v-major {
  border-top-color: var(--blue);
}

.page-news .version-card.v-current {
  border-top-color: var(--accent);
  background: var(--night);
  color: #fff;
}

.page-news .version-card.v-minor {
  border-top-color: var(--green);
}

.page-news .version-chip {
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}

.page-news .version-card.v-current .version-chip {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.page-news .version-card h3 {
  margin: 14px 0 8px;
  font-size: 20px;
  font-weight: 900;
}

.page-news .version-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #3d4045;
}

.page-news .version-card.v-current p {
  color: rgba(255, 255, 255, 0.9);
}

/* ===== 相邻页面入口 ===== */
.page-news .news-context-links {
  display: grid;
  gap: 12px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 24px 18px;
}

.page-news .context-link {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 14px;
  background: var(--paper-blue);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-news .context-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.page-news .context-link-index {
  font-size: 20px;
  color: var(--accent);
}

.page-news .context-link-text {
  display: grid;
  gap: 2px;
}

.page-news .context-link-text strong {
  font-size: 15px;
}

.page-news .context-link-text small {
  font-size: 13px;
  color: #555;
}

/* ===== 桌面端 ===== */
@media (min-width: 900px) {
  .page-news .news-hero {
    padding: 40px 24px 0;
  }

  .page-news .news-hero-title {
    font-size: 44px;
    line-height: 1.2;
    max-width: 940px;
  }

  .page-news .news-hero-lead {
    font-size: 16px;
  }

  .page-news .news-hero-stats {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-news .news-stat:last-child {
    grid-column: auto;
  }

  .page-news .news-section-wrap {
    padding: 36px 24px;
  }

  .page-news .news-section-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
  }

  .page-news .news-section-heading h2 {
    font-size: 32px;
  }

  .page-news .stream-change-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-news .stream-compare-figure {
    flex-direction: row;
    align-items: center;
  }

  .page-news .stream-compare-figure figcaption {
    flex: 1;
  }

  .page-news .archive-layout {
    grid-template-columns: 220px 1fr;
    gap: 20px;
    align-items: start;
  }

  .page-news .archive-rail-art {
    position: sticky;
    top: 24px;
  }

  .page-news .archive-rail-art img {
    max-width: 100%;
  }

  .page-news .archive-year-track {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-news .version-layout {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 24px;
    align-items: start;
  }

  .page-news .version-figure {
    position: sticky;
    top: 24px;
  }

  .page-news .version-card-grid {
    grid-template-columns: 1fr;
  }

  .page-news .news-context-links {
    grid-template-columns: repeat(3, 1fr);
    padding: 32px 24px;
  }
}