/* ===== 页面专属：更新说明 (page-news) ===== */
.page-news {
  --news-gold: #D4AF37;
  --news-gold-dark: #B8860B;
  --news-card-bg: #5A2D8C;
  --news-overlay: #1A0A2E;
  --news-bg: #0B0C10;
  --news-text: #E0E0E0;
  --news-text-white: #FFFFFF;
  --news-radius-card: 16px;
  --news-radius-capsule: 9999px;
  --news-timeline-width: 3px;
  --news-dot-size: 18px;
  --news-max-width: 1200px;

  display: block;
  background-color: var(--news-bg);
  color: var(--news-text);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  padding: 1.5rem 1rem 3rem;
}

/* 容器 */
.page-news .page-container {
  max-width: var(--news-max-width);
  margin: 0 auto;
}

/* 面包屑 */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--news-text);
  opacity: 0.8;
  margin-bottom: 1.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}
.page-news .breadcrumb a {
  color: var(--news-gold);
  text-decoration: none;
  transition: color 0.2s;
}
.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus {
  color: var(--news-text-white);
  outline: 2px solid var(--news-gold);
  outline-offset: 2px;
  border-radius: 4px;
}
.page-news .breadcrumb__sep {
  color: var(--news-gold-dark);
  user-select: none;
}
.page-news .breadcrumb__current {
  color: var(--news-text-white);
  font-weight: 500;
}

/* 页面标题区 */
.page-news__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.5rem;
  padding: 0.5rem 0;
  border-bottom: 2px solid var(--news-gold);
}
.page-news__title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--news-text-white);
  margin: 0;
  letter-spacing: 0.02em;
  text-shadow: 0 0 20px rgba(212, 175, 55, 0.15);
  line-height: 1.25;
}
.page-news__header-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--news-radius-card);
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--news-gold-dark);
  box-shadow: 0 0 12px rgba(212, 175, 55, 0.25);
}

/* 面板通用 */
.page-news .section-panel {
  margin-bottom: 3rem;
}
.page-news .section-panel__heading {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--news-text-white);
  margin: 0 0 1.25rem;
  padding-left: 0.75rem;
  border-left: 4px solid var(--news-gold);
  letter-spacing: 0.01em;
}

/* 卡片通用 */
.page-news .card {
  background: linear-gradient(145deg, var(--news-card-bg), var(--news-overlay));
  border-radius: var(--news-radius-card);
  padding: 1.5rem;
  border: 1px solid rgba(212, 175, 55, 0.25);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.2s;
}
.page-news .card:hover {
  border-color: var(--news-gold);
  box-shadow: 0 8px 40px rgba(212, 175, 55, 0.15);
  transform: translateY(-2px);
}

/* 最新版本卡片 */
.page-news__latest-card {
  padding: 0;
  overflow: hidden;
}
.page-news__latest-top {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem 1.5rem 0;
}
.page-news__version-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(212, 175, 55, 0.15);
  border: 1px solid var(--news-gold);
  border-radius: var(--news-radius-capsule);
  padding: 0.35rem 1rem 0.35rem 1.25rem;
  font-size: 0.9rem;
}
.page-news__version-label {
  color: var(--news-text);
  font-weight: 400;
  opacity: 0.85;
}
.page-news__version-number {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-weight: 700;
  color: var(--news-gold);
  font-size: 1.1rem;
  letter-spacing: 0.03em;
}
.page-news__latest-img {
  width: 100%;
  max-width: 400px;
  height: auto;
  aspect-ratio: 400 / 250;
  object-fit: cover;
  border-radius: var(--news-radius-card);
  border: 1px solid rgba(212, 175, 55, 0.2);
  align-self: center;
}
.page-news__latest-body {
  padding: 0 1.5rem 1.5rem;
}
.page-news__latest-summary {
  font-size: 1.05rem;
  color: var(--news-text-white);
  margin: 1rem 0 1.25rem;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--news-radius-card);
  border-left: 3px solid var(--news-gold);
}

/* 更新列表 */
.page-news__changelist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.page-news__changeitem {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.6rem 1rem;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.15);
  border-radius: var(--news-radius-card);
  border: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}
.page-news__changeitem:hover {
  border-color: rgba(212, 175, 55, 0.3);
  background: rgba(0, 0, 0, 0.25);
}
.page-news__changeicon {
  color: var(--news-gold);
  font-size: 1.2rem;
  line-height: 1.5;
  flex-shrink: 0;
  width: 1.2rem;
  text-align: center;
}
.page-news__changetext {
  flex: 1;
  min-width: 180px;
}
.page-news__changetext strong {
  display: block;
  font-weight: 600;
  color: var(--news-gold);
  font-size: 1rem;
  margin-bottom: 0.15rem;
}
.page-news__changetext span {
  color: var(--news-text);
  font-size: 0.95rem;
}
.page-news__inline-img {
  border-radius: var(--news-radius-card);
  object-fit: cover;
  border: 1px solid rgba(212, 175, 55, 0.15);
  flex-shrink: 0;
  transition: border-color 0.2s;
}
.page-news__inline-img:hover {
  border-color: var(--news-gold);
}
.page-news__inline-img--phone {
  width: 100%;
  max-width: 120px;
  height: auto;
  aspect-ratio: 300 / 600;
}
.page-news__inline-img--fix {
  width: 100%;
  max-width: 160px;
  height: auto;
  aspect-ratio: 300 / 200;
}

/* 历史记录区 */
.page-news__history-note {
  font-size: 0.95rem;
  color: var(--news-text);
  opacity: 0.8;
  margin: -0.5rem 0 1.75rem;
  padding: 0.5rem 1rem;
  background: rgba(212, 175, 55, 0.06);
  border-radius: var(--news-radius-card);
  border-left: 3px solid var(--news-gold-dark);
}

/* 时间线 */
.page-news__timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 2.5rem;
}

/* 时间线项目 */
.page-news__timeline-item {
  position: relative;
  padding-bottom: 2rem;
}
.page-news__timeline-item:last-child {
  padding-bottom: 0;
}

/* 时间线标记（竖线+圆点） */
.page-news__timeline-marker {
  position: absolute;
  left: -2.5rem;
  top: 0.4rem;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 2.5rem;
}
.page-news__timeline-dot {
  width: var(--news-dot-size);
  height: var(--news-dot-size);
  border-radius: 50%;
  background: var(--news-gold);
  border: 3px solid var(--news-bg);
  box-shadow: 0 0 0 2px var(--news-gold), 0 0 16px rgba(212, 175, 55, 0.35);
  flex-shrink: 0;
  z-index: 1;
  transition: transform 0.3s, box-shadow 0.3s;
}
.page-news__timeline-item--active:hover .page-news__timeline-dot {
  transform: scale(1.15);
  box-shadow: 0 0 0 2px var(--news-gold), 0 0 24px rgba(212, 175, 55, 0.55);
}
.page-news__timeline-line {
  flex: 1;
  width: var(--news-timeline-width);
  background: linear-gradient(to bottom, var(--news-gold), rgba(212, 175, 55, 0.2));
  margin-top: 0.25rem;
  border-radius: 2px;
  min-height: 2rem;
}

/* 待整理节点 */
.page-news__timeline-dot--pending {
  background: var(--news-overlay);
  border-color: rgba(212, 175, 55, 0.2);
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.15);
}
.page-news__timeline-line--pending {
  background: linear-gradient(to bottom, rgba(212, 175, 55, 0.15), rgba(212, 175, 55, 0.05));
}
.page-news .card--pending {
  background: rgba(26, 10, 46, 0.6);
  border-color: rgba(212, 175, 55, 0.1);
  opacity: 0.75;
}
.page-news .card--pending:hover {
  border-color: rgba(212, 175, 55, 0.2);
  transform: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}
.page-news__timeline-pending-text {
  color: var(--news-text);
  font-size: 0.9rem;
  font-style: italic;
  opacity: 0.6;
  margin: 0;
  text-align: center;
}

/* 时间线内容卡片 */
.page-news__timeline-content {
  padding: 0;
  overflow: hidden;
}
.page-news__timeline-content .card {
  margin: 0;
}
.page-news__timeline-content details {
  padding: 0;
}
.page-news__timeline-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background 0.2s;
  border-radius: var(--news-radius-card);
}
.page-news__timeline-summary::-webkit-details-marker {
  display: none;
}
.page-news__timeline-summary:hover {
  background: rgba(212, 175, 55, 0.06);
}
.page-news__timeline-version {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--news-gold);
  letter-spacing: 0.02em;
}
.page-news__timeline-status {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--news-bg);
  background: var(--news-gold);
  padding: 0.15rem 0.6rem;
  border-radius: var(--news-radius-capsule);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.page-news__timeline-toggle {
  font-size: 0.8rem;
  color: var(--news-text);
  opacity: 0.5;
  margin-left: auto;
  transition: opacity 0.2s;
}
.page-news__timeline-summary:hover .page-news__timeline-toggle {
  opacity: 1;
  color: var(--news-gold);
}
details[open] .page-news__timeline-toggle {
  opacity: 0;
}
details[open] .page-news__timeline-summary {
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
}
.page-news__timeline-details {
  padding: 1rem 1.25rem 1.25rem;
}
.page-news__changelist--compact {
  gap: 0.6rem;
}
.page-news__changelist--compact li {
  font-size: 0.95rem;
  color: var(--news-text);
  padding: 0.3rem 0 0.3rem 1.2rem;
  position: relative;
  list-style: none;
}
.page-news__changelist--compact li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--news-gold-dark);
  font-weight: 300;
}

/* 相关链接 */
.page-news__related {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(212, 175, 55, 0.12);
  text-align: center;
}
.page-news__related-text {
  font-size: 0.95rem;
  color: var(--news-text);
  opacity: 0.85;
  margin: 0;
}
.page-news__link {
  color: var(--news-gold);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.page-news__link:hover,
.page-news__link:focus {
  color: var(--news-text-white);
  border-bottom-color: var(--news-gold);
  outline: none;
}

/* 响应式：平板及以上 */
@media (min-width: 600px) {
  .page-news {
    padding: 2rem 2rem 4rem;
  }
  .page-news__title {
    font-size: 2.8rem;
  }
  .page-news .section-panel__heading {
    font-size: 2rem;
    margin-bottom: 1.5rem;
  }
  .page-news__latest-top {
    flex-direction: row;
    align-items: center;
    padding: 2rem 2rem 0;
  }
  .page-news__latest-img {
    max-width: 320px;
  }
  .page-news__latest-body {
    padding: 0 2rem 2rem;
  }
  .page-news__changeitem {
    flex-wrap: nowrap;
    padding: 1rem 1.25rem;
  }
  .page-news__inline-img--phone {
    max-width: 100px;
  }
  .page-news__inline-img--fix {
    max-width: 140px;
  }
  .page-news__timeline {
    padding-left: 3.5rem;
  }
  .page-news__timeline-marker {
    left: -3.5rem;
    width: 3.5rem;
  }
  .page-news__timeline-summary {
    padding: 1.25rem 1.5rem;
  }
  .page-news__timeline-details {
    padding: 1.25rem 1.5rem 1.5rem;
  }
  .page-news__version-number {
    font-size: 1.3rem;
  }
}

/* 响应式：桌面 */
@media (min-width: 900px) {
  .page-news {
    padding: 3rem 2.5rem 5rem;
  }
  .page-news__title {
    font-size: 3.2rem;
  }
  .page-news .section-panel__heading {
    font-size: 2.2rem;
  }
  .page-news__latest-top {
    padding: 2.5rem 2.5rem 0;
    gap: 2rem;
  }
  .page-news__latest-img {
    max-width: 400px;
  }
  .page-news__latest-body {
    padding: 0 2.5rem 2.5rem;
  }
  .page-news__latest-summary {
    font-size: 1.1rem;
    padding: 1rem 1.5rem;
  }
  .page-news__changeitem {
    padding: 1.25rem 1.5rem;
    gap: 1rem 1.5rem;
  }
  .page-news__changelist {
    gap: 1rem;
  }
  .page-news__timeline {
    padding-left: 4.5rem;
  }
  .page-news__timeline-marker {
    left: -4.5rem;
    width: 4.5rem;
  }
  .page-news__timeline-version {
    font-size: 1.35rem;
  }
  .page-news .card {
    padding: 2rem;
  }
  .page-news__latest-card {
    padding: 0;
  }
  .page-news__inline-img--phone {
    max-width: 120px;
  }
  .page-news__inline-img--fix {
    max-width: 160px;
  }
}

/* 响应式：大桌面 */
@media (min-width: 1200px) {
  .page-news {
    padding: 3.5rem 3rem 6rem;
  }
  .page-news .page-container {
    padding: 0 1rem;
  }
}

/* 图片响应式 */
.page-news img {
  max-width: 100%;
  height: auto;
}
.page-news__header-icon {
  width: 80px;
  height: 80px;
}

/* 焦点样式增强 */
.page-news *:focus-visible {
  outline: 2px solid var(--news-gold);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 打印优化 */
@media print {
  .page-news {
    background: #fff;
    color: #222;
    padding: 1rem;
  }
  .page-news .card {
    background: #f5f5f5;
    border-color: #ccc;
    box-shadow: none;
  }
  .page-news__title {
    color: #222;
    text-shadow: none;
  }
  .page-news .section-panel__heading {
    color: #222;
    border-left-color: #888;
  }
  .page-news__version-number {
    color: #B8860B;
  }
  .page-news__link {
    color: #5A2D8C;
  }
  .page-news__timeline-dot {
    box-shadow: none;
    border-color: #888;
  }
  .page-news__timeline-line {
    background: #ccc;
  }
  .page-news__header-icon {
    display: none;
  }
}