/* ========================================
   page-news 行业观察页面专属样式
   移动端优先 + 桌面栅格布局
   ======================================== */
.page-news {
  --news-card-radius: 8px;
  --news-card-bg: #FFFFFF;
  --news-tag-bg: rgba(255, 111, 0, 0.12);
  --news-tag-color: #FF6F00;
  --news-sidebar-bg: #F5F5F5;
  --news-divider-color: rgba(27, 58, 92, 0.15);
  --news-hero-overlay: linear-gradient(135deg, #0D1B2A 0%, rgba(13, 27, 42, 0.65) 50%, rgba(27, 58, 92, 0.4) 100%);
  --news-accent-bar: #FF6F00;
  --news-card-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  --news-card-hover-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  --news-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  background-color: var(--neutral-light, #F5F5F5);
  padding-bottom: 2rem;
}

/* ----- 面包屑 ----- */
.page-news .breadcrumb {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 1rem 1.25rem 0.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.85rem;
  color: var(--text-secondary, #B0BEC5);
}
.page-news .breadcrumb-item {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}
.page-news .breadcrumb-item[href]:hover {
  color: var(--link-hover, #FF8F00);
}
.page-news .breadcrumb-item[aria-current="page"] {
  color: var(--primary-dark-blue, #0D1B2A);
  font-weight: 600;
}
.page-news .breadcrumb-item + .breadcrumb-item::before {
  content: "·";
  margin-right: 0.5rem;
  color: var(--text-secondary, #B0BEC5);
}

/* ----- 顶部横幅 ----- */
.page-news .news-hero {
  position: relative;
  max-width: var(--max-width, 1200px);
  margin: 0.5rem auto 2rem;
  border-radius: 12px;
  overflow: hidden;
  background: var(--primary-dark-blue, #0D1B2A);
  min-height: 320px;
  display: flex;
  align-items: center;
}
.page-news .news-hero-image {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-news .news-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-news .news-hero-content {
  position: relative;
  z-index: 2;
  padding: 2.5rem 2rem;
  background: var(--news-hero-overlay);
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.page-news .news-hero-title {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-weight: 700;
  font-size: clamp(2.2rem, 6vw, 4rem);
  color: var(--white, #FFFFFF);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 0.5rem;
  line-height: 1.1;
}
.page-news .news-hero-sub {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: var(--text-secondary, #B0BEC5);
  max-width: 640px;
  margin: 0;
  line-height: 1.5;
  font-weight: 400;
}
.page-news .news-hero-accent {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: var(--news-accent-bar, #FF6F00);
  z-index: 3;
  border-radius: 0 4px 4px 0;
}

/* ----- 布局容器 ----- */
.page-news .container {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}
.page-news .news-layout {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  padding-top: 0.5rem;
  padding-bottom: 2rem;
}

/* ----- 区域标题 ----- */
.page-news .section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-news .section-title {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  color: var(--primary-dark-blue, #0D1B2A);
  margin: 0;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.page-news .section-line {
  flex: 1;
  height: 2px;
  background: var(--news-divider-color, rgba(27,58,92,0.15));
  border-radius: 1px;
}
.page-news .side-header {
  margin-bottom: 1rem;
}
.page-news .side-title {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
}
.page-news .side-line {
  background: var(--accent-orange, #FF6F00);
  opacity: 0.4;
}

/* ----- 文章卡片列表 ----- */
.page-news .card-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-news .news-card {
  display: flex;
  flex-direction: column;
  background: var(--news-card-bg, #FFFFFF);
  border-radius: var(--news-card-radius, 8px);
  overflow: hidden;
  box-shadow: var(--news-card-shadow, 0 4px 12px rgba(0,0,0,0.06));
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-left: 4px solid var(--primary-blue, #1B3A5C);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}
.page-news .news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--news-card-hover-shadow, 0 12px 28px rgba(0,0,0,0.12));
  border-left-color: var(--accent-orange, #FF6F00);
}
/* 斜切角效果 */
.page-news .news-card .card-image-wrap {
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
  margin-bottom: -8px;
}
.page-news .card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  max-width: 100%;
  transition: transform 0.4s ease;
}
.page-news .news-card:hover .card-img {
  transform: scale(1.03);
}
.page-news .card-body {
  padding: 0.75rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}
.page-news .card-title {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary-dark-blue, #0D1B2A);
  margin: 0;
  line-height: 1.3;
  transition: color 0.2s;
}
.page-news .news-card:hover .card-title {
  color: var(--accent-orange, #FF6F00);
}
.page-news .card-summary {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.9rem;
  color: var(--neutral-dark, #333333);
  line-height: 1.55;
  margin: 0.25rem 0 0.3rem;
  flex: 1;
}
.page-news .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}
.page-news .card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--news-tag-color, #FF6F00);
  background: var(--news-tag-bg, rgba(255,111,0,0.12));
  padding: 0.2rem 0.7rem;
  border-radius: 3px;
  border: 1px solid rgba(255, 111, 0, 0.2);
}
.page-news .card-read-more {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-blue, #1B3A5C);
  transition: color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}
.page-news .news-card:hover .card-read-more {
  color: var(--accent-orange, #FF6F00);
}
.page-news .card-arrow {
  transition: transform 0.2s;
}
.page-news .news-card:hover .card-arrow {
  transform: translateX(4px);
}

/* ----- 功能图解嵌入 ----- */
.page-news .insight-diagram {
  display: flex;
  flex-direction: column;
  background: var(--white, #FFFFFF);
  border-radius: var(--news-card-radius, 8px);
  overflow: hidden;
  box-shadow: var(--news-card-shadow, 0 4px 12px rgba(0,0,0,0.06));
  margin-top: 1rem;
  border: 1px solid rgba(255, 111, 0, 0.15);
  border-left: 6px solid var(--accent-orange, #FF6F00);
}
.page-news .diagram-content {
  padding: 1.25rem 1.5rem;
}
.page-news .diagram-title {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary-dark-blue, #0D1B2A);
  margin: 0 0 0.35rem;
}
.page-news .diagram-desc {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.9rem;
  color: var(--neutral-dark, #333333);
  line-height: 1.5;
  margin: 0;
}
.page-news .diagram-image {
  width: 100%;
  background: var(--neutral-light, #F5F5F5);
}
.page-news .diagram-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: contain;
}

/* ----- 侧栏 ----- */
.page-news .news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.page-news .sidebar-section {
  background: var(--news-sidebar-bg, #F5F5F5);
  border-radius: var(--news-card-radius, 8px);
  padding: 1.25rem 1.25rem 1.5rem;
  border: 1px solid var(--news-divider-color, rgba(27,58,92,0.1));
}
.page-news .tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.page-news .tag-item {
  display: inline-block;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary-dark-blue, #0D1B2A);
  background: var(--white, #FFFFFF);
  padding: 0.4rem 0.9rem;
  border-radius: 20px;
  border: 1px solid rgba(27, 58, 92, 0.15);
  cursor: default;
  transition: all 0.25s ease;
  user-select: none;
}
.page-news .tag-item:hover {
  background: var(--accent-orange, #FF6F00);
  color: var(--white, #FFFFFF);
  border-color: var(--accent-orange, #FF6F00);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(255, 111, 0, 0.2);
}
/* 标签云颜色区分：按序不同背景 */
.page-news .tag-item:nth-child(3n+1) {
  border-left: 3px solid #FF6F00;
}
.page-news .tag-item:nth-child(3n+2) {
  border-left: 3px solid #1B3A5C;
}
.page-news .tag-item:nth-child(3n+3) {
  border-left: 3px solid #0D1B2A;
}
.page-news .tag-item:focus-visible {
  outline: 2px solid var(--accent-orange, #FF6F00);
  outline-offset: 2px;
}

/* ----- 推荐阅读 ----- */
.page-news .recommend-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-news .recommend-item {
  margin: 0;
  padding: 0;
}
.page-news .recommend-link {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--primary-dark-blue, #0D1B2A);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s, padding-left 0.2s;
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
}
.page-news .recommend-link::before {
  content: "→";
  color: var(--accent-orange, #FF6F00);
  font-weight: 700;
  transition: transform 0.2s;
}
.page-news .recommend-link:hover {
  color: var(--accent-orange, #FF6F00);
  padding-left: 4px;
}
.page-news .recommend-link:hover::before {
  transform: translateX(3px);
}

/* ----- 侧栏装饰图 ----- */
.page-news .sidebar-decor {
  text-align: center;
  opacity: 0.7;
}
.page-news .decor-img {
  width: 100%;
  max-width: 150px;
  height: auto;
  border-radius: 50%;
  object-fit: cover;
  display: inline-block;
  border: 2px solid rgba(255, 111, 0, 0.2);
}

/* ----- 信任声明 ----- */
.page-news .trust-statement {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.8rem;
  color: var(--text-secondary, #B0BEC5);
  text-align: center;
  padding: 2rem 1.25rem 0.5rem;
  border-top: 1px solid var(--news-divider-color, rgba(27,58,92,0.1));
  margin-top: 0.5rem;
}

/* ========================================
   桌面端 ≥ 768px
   ======================================== */
@media (min-width: 768px) {
  .page-news .news-hero {
    min-height: 380px;
    margin-left: 1.25rem;
    margin-right: 1.25rem;
    border-radius: 16px;
  }
  .page-news .news-hero-content {
    padding: 3.5rem 3rem;
  }
  .page-news .news-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
  }
  .page-news .news-main {
    flex: 1 1 66%;
    min-width: 0;
  }
  .page-news .news-sidebar {
    flex: 0 0 30%;
    max-width: 340px;
    position: sticky;
    top: calc(var(--header-height, 68px) + 1.5rem);
  }
  .page-news .news-card {
    flex-direction: row;
    border-left-width: 6px;
  }
  .page-news .news-card .card-image-wrap {
    flex: 0 0 260px;
    max-width: 260px;
    clip-path: polygon(0 0, 100% 0, 90% 100%, 0 100%);
    margin-bottom: 0;
    min-height: 180px;
  }
  .page-news .card-body {
    padding: 1.25rem 1.5rem;
  }
  .page-news .card-title {
    font-size: 1.15rem;
  }
  .page-news .card-summary {
    font-size: 0.92rem;
  }
  .page-news .insight-diagram {
    flex-direction: row;
    align-items: center;
  }
  .page-news .diagram-content {
    flex: 1;
    padding: 1.5rem 2rem;
  }
  .page-news .diagram-image {
    flex: 0 0 280px;
    max-width: 280px;
  }
  .page-news .sidebar-section {
    padding: 1.5rem;
  }
  .page-news .tag-cloud {
    gap: 0.5rem;
  }
  .page-news .tag-item {
    font-size: 0.78rem;
    padding: 0.3rem 0.8rem;
  }
}

/* ========================================
   桌面端 ≥ 1024px 加强间距
   ======================================== */
@media (min-width: 1024px) {
  .page-news .news-hero {
    min-height: 420px;
    margin-left: auto;
    margin-right: auto;
  }
  .page-news .news-hero-content {
    padding: 4rem 3.5rem;
  }
  .page-news .news-card .card-image-wrap {
    flex-basis: 280px;
    max-width: 280px;
  }
  .page-news .news-sidebar {
    flex-basis: 28%;
    max-width: 300px;
  }
  .page-news .diagram-image {
    flex-basis: 320px;
    max-width: 320px;
  }
}

/* ========================================
   减弱动效兼容
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    transform: none !important;
  }
  .page-news .news-card:hover {
    transform: none;
  }
  .page-news .news-card:hover .card-img {
    transform: none;
  }
  .page-news .tag-item:hover {
    transform: none;
  }
}