.page-news {
  /* 页面级变量 */
  --news-index-width: 200px;
  --news-gap: 2rem;
  --news-card-bg: rgba(28, 22, 48, 0.72);
  --news-border-gold: rgba(212, 172, 13, 0.35);

  color: var(--text);
  background:
    radial-gradient(circle at 90% 10%, rgba(125, 60, 152, 0.15), transparent 320px),
    radial-gradient(circle at 10% 60%, rgba(212, 172, 13, 0.06), transparent 260px),
    var(--bg);
}

/* 页面头部区域 */
.page-news__header {
  padding: 2rem 0 1.75rem;
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 2rem;
  position: relative;
}

.page-news__header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(240px, 40vw);
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(212, 172, 13, 0.1));
}

.page-news__intro {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.8;
  margin-top: 0.5rem;
}

/* 布局：移动端单列，桌面端索引 + 主内容 */
.page-news__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  align-items: start;
  padding-bottom: 4rem;
}

/* 旁注：等宽月份索引 */
.page-news__index {
  background: var(--news-card-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  position: sticky;
  top: 1rem;
  z-index: 5;
  box-shadow: var(--shadow-card);
}

.page-news__index-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.9rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px dashed var(--border-soft);
}

.page-news__index ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
}

.page-news__index a {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-news__index a:hover {
  color: var(--text-bright);
  background: rgba(125, 60, 152, 0.25);
  border-color: var(--news-border-gold);
}

.page-news__index-note {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.page-news__index-note-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-light);
  box-shadow: 0 0 8px var(--gold);
}

/* 主内容区 */
.page-news__main {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
  min-width: 0;
}

.page-news__section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-style: italic;
  color: var(--text-bright);
  font-size: var(--text-h2);
  margin-bottom: 1.25rem;
}

.page-news__section-index {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.9rem;
  color: var(--gold);
  background: rgba(212, 172, 13, 0.1);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 0.2rem 0.5rem;
  letter-spacing: 0.1em;
}

/* 本月要闻卡片 */
.page-news__featured-card {
  position: relative;
  background: var(--news-card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.page-news__featured-card:hover {
  border-color: var(--news-border-gold);
  transform: translateY(-2px);
}

.page-news__featured-card > img {
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--border-soft);
}

.page-news__featured-body {
  padding: 1.5rem;
}

.page-news__featured-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.page-news__featured-body h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  line-height: 1.3;
  color: var(--text-bright);
  margin: 0 0 0.75rem;
}

.page-news__featured-body p {
  color: var(--text);
  line-height: 1.85;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.page-news__featured-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* 更新日志时间线 */
.page-news__timeline {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
}

.page-news__log-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  background: var(--news-card-bg);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  transition: border-color 0.3s ease, background 0.3s ease;
  position: relative;
  scroll-margin-top: 1.5rem;
}

.page-news__log-item::before {
  content: "";
  position: absolute;
  left: -0.3px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-light), var(--gold));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.page-news__log-item:hover {
  border-color: var(--news-border-gold);
  background: rgba(28, 22, 48, 0.92);
}

.page-news__log-item:hover::before {
  opacity: 1;
}

.page-news__log-meta {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.page-news__log-month {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary-light);
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-news__log-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  background: rgba(212, 172, 13, 0.1);
  border: 1px solid var(--border-soft);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}

.page-news__log-content h3 {
  color: var(--text-bright);
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
  line-height: 1.4;
}

.page-news__log-content p {
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 0.95rem;
  margin-bottom: 0.6rem;
}

.page-news__log-content img {
  border-radius: var(--radius-md);
  max-width: 100%;
  height: auto;
  margin-top: 0.75rem;
  border: 1px solid var(--border-soft);
}

.page-news__log-quote {
  margin: 0.75rem 0 0;
  padding: 0.75rem 1rem;
  border-left: 2px solid var(--gold);
  background: rgba(212, 172, 13, 0.06);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* 栏目专题 */
.page-news__topics-lead {
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 1.5rem;
}

.page-news__topics-grid {
  gap: 1.25rem;
}

.page-news__topic-card {
  background: var(--news-card-bg);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.page-news__topic-card:hover {
  border-color: var(--news-border-gold);
  transform: translateY(-3px);
}

.page-news__topic-card .media {
  overflow: hidden;
}

.page-news__topic-card .media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.page-news__topic-card:hover .media img {
  transform: scale(1.03);
}

.card__body {
  padding: 1.25rem;
  flex: 1;
}

.card__body h3 {
  font-family: var(--font-heading);
  color: var(--text-bright);
  margin: 0.5rem 0 0.4rem;
  font-size: 1.2rem;
}

.card__body p {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.9rem;
}

/* 社区栏目块 */
.page-news__community {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 1.75rem;
  border: 1px solid var(--border-soft);
  background: var(--bg-panel);
  box-shadow: var(--shadow-card);
}

.page-news__community-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  filter: brightness(0.72) saturate(0.9);
  border-bottom: 1px solid var(--border-soft);
}

.page-news__community-text {
  padding: 1.5rem;
  position: relative;
  background: linear-gradient(180deg, rgba(11, 9, 26, 0.2), rgba(11, 9, 26, 0.95));
}

.page-news__community-inner {
  max-width: 640px;
}

.page-news__community-text h3 {
  font-family: var(--font-heading);
  color: var(--text-bright);
  margin: 0.5rem 0;
  font-size: 1.5rem;
}

.page-news__community-text p {
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.page-news__community-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* 桌面端布局 */
@media (min-width: 768px) {
  .page-news__header {
    padding: 3rem 0 2rem;
  }

  .page-news__layout {
    grid-template-columns: var(--news-index-width) 1fr;
    gap: 2.5rem;
  }

  .page-news__index {
    position: sticky;
    top: 2rem;
    padding: 1.5rem 1.25rem;
  }

  .page-news__index ul {
    flex-direction: column;
    gap: 0.2rem;
  }

  .page-news__index a {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .page-news__index a::after {
    content: "→";
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    color: var(--gold);
  }

  .page-news__index a:hover::after {
    opacity: 1;
    transform: translateX(0);
  }

  .page-news__log-item {
    grid-template-columns: 110px 1fr;
    gap: 1.25rem;
  }

  .page-news__log-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .page-news__featured-card > img {
    max-height: 420px;
  }

  .page-news__featured-body {
    padding: 2rem 2.5rem;
  }

  .page-news__community {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }

  .page-news__community-media img {
    height: 100%;
    min-height: 240px;
    border-bottom: 0;
    border-right: 1px solid var(--border-soft);
  }

  .page-news__community-text {
    padding: 2rem;
    display: flex;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-news__layout {
    --news-index-width: 240px;
    gap: 3.5rem;
  }

  .page-news__timeline {
    padding-left: 0.5rem;
  }
}

/* 动效能降级 */
@media (prefers-reduced-motion: reduce) {
  .page-news__featured-card,
  .page-news__topic-card,
  .page-news__log-item {
    transition: none;
  }

  .page-news__index a {
    transition: none;
  }
}