/* ===== 行业观察 - 页面专属样式 ===== */
.page-news {
  --news-dynamics-w: 1fr;
  --news-right-w: 1fr;
  --news-gap: var(--spacing-lg);
  --card-radius: 0;
  --filter-radius: 0;
  --dynamics-accent: var(--color-blue);
  --card-border-color: var(--color-border);
  --card-hover-border: var(--color-blue);
  --card-bg: rgba(192, 192, 192, 0.04);
  --guide-card-bg: rgba(192, 192, 192, 0.06);
  --filter-bg: transparent;
  --filter-active-bg: var(--color-brand);
  --filter-active-text: var(--color-white);
  --dynamics-number-size: 2rem;
  --dynamics-number-color: var(--color-blue);
}

/* 隐藏的 h1 用于 SEO/可访问性 */
.page-news .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- 整体布局：移动端纵向堆叠 ---- */
.page-news .page-news-inner {
  display: flex;
  flex-direction: column;
  gap: var(--news-gap);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

/* ---- 左屏：品牌动态 ---- */
.page-news .news-dynamics {
  position: relative;
  padding: var(--spacing-lg) var(--spacing-md);
  background: rgba(0, 180, 216, 0.025);
  border-right: none;
  border-bottom: 1px solid var(--color-border);
}

.page-news .dynamics-header {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.page-news .dynamics-header .section-label {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--color-blue);
  letter-spacing: -0.04em;
  line-height: 1;
}

.page-news .dynamics-header h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  transform: skewX(-2deg);
  margin: 0;
}

.page-news .dynamics-hero {
  margin: 0 0 var(--spacing-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.page-news .dynamics-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .dynamics-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  counter-reset: dyn-counter;
}

.page-news .dynamics-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(46, 46, 74, 0.5);
  opacity: 0;
  animation: dynSlideIn 0.5s ease-out forwards;
}

.page-news .dynamics-item:nth-child(1) { animation-delay: 0.1s; }
.page-news .dynamics-item:nth-child(2) { animation-delay: 0.25s; }
.page-news .dynamics-item:nth-child(3) { animation-delay: 0.4s; }
.page-news .dynamics-item:nth-child(4) { animation-delay: 0.55s; }

@keyframes dynSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-16px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

.page-news .dynamics-icon {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border-radius: 0;
  object-fit: cover;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.page-news .dynamics-body {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
}

.page-news .dynamics-number {
  font-family: var(--font-heading);
  font-size: var(--dynamics-number-size);
  font-weight: 700;
  color: var(--dynamics-number-color);
  line-height: 1;
  letter-spacing: -0.04em;
  flex-shrink: 0;
  min-width: 2.4rem;
  animation: numPulse 2s ease-in-out infinite;
}

@keyframes numPulse {
  0%, 100% { opacity: 0.8; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.06); }
}

.page-news .dynamics-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text);
  margin: 0;
}

/* ---- 右侧列容器 ---- */
.page-news .news-right-col {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

/* ---- 行业观察文章 ---- */
.page-news .news-articles {
  padding: 0 var(--spacing-md);
}

.page-news .articles-header {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.page-news .articles-header .section-label {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--color-blue);
  letter-spacing: -0.04em;
  line-height: 1;
}

.page-news .articles-header h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  transform: skewX(-2deg);
  margin: 0;
}

/* 筛选栏 */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.page-news .filter-btn {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-muted);
  background: var(--filter-bg);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xs) var(--spacing-md);
  cursor: default;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  letter-spacing: 0.02em;
}

.page-news .filter-btn.is-active {
  color: var(--filter-active-text);
  background: var(--filter-active-bg);
  border-color: var(--filter-active-bg);
}

.page-news .filter-btn:hover {
  color: var(--color-white);
  border-color: var(--color-blue);
}

/* 卡片网格 */
.page-news .articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.page-news .article-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--card-border-color);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: default;
}

.page-news .article-card:hover {
  transform: scale(1.02);
  border-color: var(--card-hover-border);
  box-shadow: 0 0 0 1px var(--color-blue), 0 8px 24px rgba(0, 180, 216, 0.08);
}

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

.page-news .article-card-body {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  flex: 1;
}

.page-news .article-card-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0;
  transform: skewX(-1deg);
}

.page-news .article-card-summary {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--color-muted);
  margin: 0;
}

/* ---- 选型指南合集 ---- */
.page-news .news-guides {
  padding: var(--spacing-lg) var(--spacing-md);
  background: rgba(0, 180, 216, 0.02);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.page-news .guides-header {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.page-news .guides-header .section-label {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--color-blue);
  letter-spacing: -0.04em;
  line-height: 1;
}

.page-news .guides-header h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  transform: skewX(-2deg);
  margin: 0;
}

.page-news .guides-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.page-news .guide-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
  background: var(--guide-card-bg);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.page-news .guide-card:hover {
  transform: scale(1.03);
  border-color: var(--color-blue);
  background: rgba(0, 180, 216, 0.06);
}

.page-news .guide-card-img {
  display: block;
  width: 140px;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-border);
}

.page-news .guide-card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin: 0 0 var(--spacing-xs);
  transform: skewX(-1deg);
}

.page-news .guide-card-desc {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-muted);
  margin: 0;
  line-height: 1.4;
}

/* ===== 桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .page-news .page-news-inner {
    flex-direction: row;
    align-items: flex-start;
    padding: var(--spacing-xl) var(--spacing-lg);
    gap: 0;
  }

  .page-news .news-dynamics {
    flex: 0 0 34%;
    max-width: 34%;
    padding: var(--spacing-xl) var(--spacing-lg);
    border-right: 1px solid var(--color-border);
    border-bottom: none;
    position: sticky;
    top: 0;
    align-self: flex-start;
  }

  .page-news .news-right-col {
    flex: 1;
    min-width: 0;
    padding-left: var(--spacing-lg);
  }

  .page-news .dynamics-header .section-label {
    font-size: 3rem;
  }

  .page-news .articles-header .section-label {
    font-size: 3rem;
  }

  .page-news .guides-header .section-label {
    font-size: 3rem;
  }

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

  .page-news .guides-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--spacing-lg);
  }

  .page-news .guide-card-img {
    width: 160px;
  }

  .page-news .dynamics-number {
    font-size: 2.4rem;
    min-width: 2.8rem;
  }

  .page-news .dynamics-text {
    font-size: 1rem;
  }

  .page-news .article-card-title {
    font-size: 1.1rem;
  }
}

/* ===== 大桌面端 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-news .page-news-inner {
    padding: var(--spacing-xl) calc(var(--spacing-xl) + var(--spacing-md));
  }

  .page-news .news-dynamics {
    flex: 0 0 32%;
    max-width: 32%;
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .page-news .dynamics-header .section-label {
    font-size: 3.6rem;
  }

  .page-news .articles-header .section-label {
    font-size: 3.6rem;
  }

  .page-news .guides-header .section-label {
    font-size: 3.6rem;
  }

  .page-news .articles-grid {
    gap: var(--spacing-lg);
  }

  .page-news .filter-btn {
    font-size: 0.9rem;
    padding: var(--spacing-xs) var(--spacing-lg);
  }
}

/* ===== 窄屏安全 ===== */
@media (max-width: 400px) {
  .page-news .page-news-inner {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .page-news .news-dynamics {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .page-news .news-articles,
  .page-news .news-guides {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
  }

  .page-news .dynamics-number {
    font-size: 1.5rem;
    min-width: 1.8rem;
  }

  .page-news .dynamics-text {
    font-size: 0.85rem;
  }

  .page-news .article-card-title {
    font-size: 0.95rem;
  }

  .page-news .guide-card-img {
    width: 100px;
  }
}