.page-news {
  --page-news-bg: var(--color-bg);
  --page-news-card-bg: var(--color-card);
  --page-news-border: var(--color-border);
  --page-news-primary: var(--color-primary);
  --page-news-secondary: var(--color-secondary);
  --page-news-text: var(--color-text);
  --page-news-text-muted: var(--color-text-secondary);
  --page-news-hero-gradient: linear-gradient(135deg, #0066CC 0%, #004499 60%, #002244 100%);
  --page-news-card-shadow: 0 2px 12px var(--shadow-card);
  --page-news-radius: 8px;
  --page-news-font-body: var(--font-body);
  --page-news-font-heading: var(--font-heading);
  --page-news-font-digit: var(--font-digit);
  scroll-behavior: smooth;
}

/* Hero 首屏 */
.page-news-hero {
  position: relative;
  width: 100%;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--page-news-hero-gradient);
  padding: 2rem 1rem;
}
.page-news-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  pointer-events: none;
}
.page-news-hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-width, 1280px);
  width: 100%;
  margin: 0 auto;
  color: #ffffff;
}
.page-news-breadcrumb {
  font-family: var(--page-news-font-body);
  font-size: var(--size-small, 0.875rem);
  margin-bottom: 0.5rem;
  opacity: 0.85;
}
.page-news-breadcrumb a {
  color: #ffffff;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-news-breadcrumb a:hover {
  opacity: 0.8;
}
.page-news-breadcrumb-sep {
  margin: 0 0.4em;
}
.page-news-hero-title {
  font-family: var(--page-news-font-heading);
  font-size: 2.2rem;
  line-height: 1.15;
  margin: 0 0 0.4rem;
  letter-spacing: var(--letter-spacing, 0.02em);
}
.page-news-hero-desc {
  font-family: var(--page-news-font-body);
  font-size: 1rem;
  margin: 0;
  opacity: 0.9;
  max-width: 480px;
}

/* 主体两栏布局 */
.page-news-body {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

/* 左栏 */
.page-news-left {
  flex: 1 1 auto;
  min-width: 0;
}

/* 右栏 */
.page-news-right {
  flex: 0 0 auto;
  width: 100%;
}

/* 搜索框 */
.page-news-search-section {
  margin-bottom: 1.5rem;
}
.page-news-search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--page-news-card-bg);
  border: 1px solid var(--page-news-border);
  border-radius: var(--page-news-radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-news-search-wrapper:focus-within {
  border-color: var(--page-news-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15);
}
.page-news-search-icon {
  flex: 0 0 auto;
  margin: 0 0.75rem;
  color: var(--page-news-text-muted);
  pointer-events: none;
}
.page-news-search-input {
  flex: 1 1 auto;
  border: none;
  background: transparent;
  padding: 0.7rem 0.75rem 0.7rem 0;
  font-family: var(--page-news-font-body);
  font-size: var(--size-body, 1rem);
  color: var(--page-news-text);
  outline: none;
  min-width: 0;
}
.page-news-search-input::placeholder {
  color: var(--page-news-text-muted);
  opacity: 0.7;
}

/* 区块标题 */
.page-news-section-title {
  font-family: var(--page-news-font-heading);
  font-size: 1.5rem;
  margin: 0 0 0.3rem;
  color: var(--page-news-text);
  letter-spacing: var(--letter-spacing);
}
.page-news-section-desc {
  font-family: var(--page-news-font-body);
  font-size: var(--size-small, 0.875rem);
  color: var(--page-news-text-muted);
  margin: 0 0 1.5rem;
}

/* 文章卡片 */
.page-news-articles {
  margin-bottom: 2rem;
}
.page-news-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: var(--page-news-card-bg);
  border-left: 4px solid transparent;
  border-radius: 0 var(--page-news-radius) var(--page-news-radius) 0;
  padding: 1rem 1rem 1rem 0.75rem;
  margin-bottom: 0.75rem;
  box-shadow: var(--page-news-card-shadow);
  transition: box-shadow 0.2s ease, border-left-color 0.2s ease;
  position: relative;
}
.page-news-card:hover {
  box-shadow: 0 4px 20px var(--shadow-hover);
}
.page-news-card[data-floor] {
  border-left-color: var(--page-news-primary);
}
.page-news-card[data-floor]:nth-child(even) {
  border-left-color: var(--page-news-secondary);
}
.page-news-card-floor {
  flex: 0 0 2.2rem;
  font-family: var(--page-news-font-digit);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--page-news-primary);
  line-height: 1;
  margin-top: 0.1rem;
  text-align: center;
}
.page-news-card-icon {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 4px;
  background: var(--color-primary-light, #E8F0FE);
}
.page-news-card-body {
  flex: 1 1 auto;
  min-width: 0;
}
.page-news-card-title {
  font-family: var(--page-news-font-body);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.2rem;
  line-height: 1.4;
}
.page-news-card-link {
  color: var(--page-news-text);
  text-decoration: none;
  transition: color 0.15s ease;
}
.page-news-card-link:hover {
  color: var(--page-news-primary);
}
.page-news-card-meta {
  font-size: 0.8rem;
  color: var(--page-news-text-muted);
  margin: 0;
}
.page-news-fav-btn {
  flex: 0 0 auto;
  background: none;
  border: 1px solid var(--page-news-border);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--page-news-text-muted);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  padding: 0;
}
.page-news-fav-btn:hover {
  background: var(--color-secondary-light, #FFF0E6);
  border-color: var(--page-news-secondary);
  color: var(--page-news-secondary);
}
.page-news-fav-btn[data-fav="true"] {
  background: var(--page-news-secondary);
  border-color: var(--page-news-secondary);
  color: #ffffff;
}

/* 更新模块 */
.page-news-updates {
  background: var(--page-news-card-bg);
  border-radius: var(--page-news-radius);
  padding: 1.25rem;
  box-shadow: var(--page-news-card-shadow);
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}
.page-news-updates-chart {
  position: absolute;
  top: 0;
  right: 0;
  width: 140px;
  height: 100%;
  pointer-events: none;
  opacity: 0.4;
}
.page-news-chart-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-news-updates-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  z-index: 1;
}
.page-news-update-item {
  display: flex;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--page-news-border);
}
.page-news-update-item:last-child {
  border-bottom: none;
}
.page-news-update-version {
  flex: 0 0 3.2rem;
  font-family: var(--page-news-font-digit);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--page-news-primary);
  line-height: 1.4;
}
.page-news-update-desc {
  flex: 1 1 auto;
  font-family: var(--page-news-font-body);
  font-size: var(--size-small, 0.875rem);
  color: var(--page-news-text);
  margin: 0;
  line-height: 1.5;
}

/* 标签云 */
.page-news-tags {
  background: var(--page-news-card-bg);
  border-radius: var(--page-news-radius);
  padding: 1.25rem;
  box-shadow: var(--page-news-card-shadow);
}
.page-news-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.5rem;
}
.page-news-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 20px;
  font-family: var(--page-news-font-body);
  text-decoration: none;
  color: var(--page-news-text);
  background: var(--color-primary-light, #E8F0FE);
  border: 1px solid transparent;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.page-news-tag:hover {
  background: var(--page-news-primary);
  color: #ffffff;
  border-color: var(--page-news-primary);
}
.page-news-tag-icon {
  width: 16px;
  height: 16px;
  object-fit: contain;
  border-radius: 50%;
  flex: 0 0 auto;
}
.page-news-tag-lg { font-size: 1rem; padding: 0.45rem 0.9rem; }
.page-news-tag-md { font-size: 0.9rem; }
.page-news-tag-sm { font-size: 0.8rem; }
.page-news-tag-xs { font-size: 0.75rem; }

/* 桌面端：两栏并排 */
@media (min-width: 768px) {
  .page-news-hero {
    min-height: 240px;
    padding: 3rem 2rem;
  }
  .page-news-hero-title {
    font-size: 3rem;
  }
  .page-news-hero-desc {
    font-size: 1.05rem;
  }
  .page-news-body {
    flex-direction: row;
    padding: 2.5rem 2rem 4rem;
    gap: 2.5rem;
  }
  .page-news-left {
    flex: 1 1 65%;
  }
  .page-news-right {
    flex: 0 0 30%;
    max-width: 340px;
  }
  .page-news-card {
    padding: 1.25rem 1.25rem 1.25rem 1rem;
  }
  .page-news-card-icon {
    width: 56px;
    height: 56px;
  }
  .page-news-card-floor {
    font-size: 1.3rem;
    flex-basis: 2.6rem;
  }
  .page-news-updates-chart {
    width: 160px;
  }
}

/* 大屏微调 */
@media (min-width: 1200px) {
  .page-news-body {
    padding: 3rem 2rem 5rem;
    gap: 3rem;
  }
  .page-news-left {
    flex: 1 1 70%;
  }
  .page-news-right {
    flex: 0 0 28%;
    max-width: 380px;
  }
}