/* ========================================
   page-news：行业观察页面专属样式
   移动端优先 + 桌面两栏布局
   所有选择器限定在 .page-news 作用域内
   ======================================== */

.page-news {
  --news-hero-bg: var(--color-primary, #00A86B);
  --news-hero-text: #ffffff;
  --news-sidebar-bg: var(--color-secondary, #004A8F);
  --news-sidebar-text: #ffffff;
  --news-sidebar-active: var(--color-accent, #FFB300);
  --news-card-bg: var(--color-neutral-light, #F5F5F5);
  --news-card-radius: var(--border-radius, 20px);
  --news-gap: 2rem;
  --news-section-gap: 3.5rem;
  --news-sidebar-width: 200px;
}

/* ---- 头部区域 ---- */
.page-news .news-hero {
  background: var(--news-hero-bg);
  color: var(--news-hero-text);
  padding: 2.5rem 0 0;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
  margin-bottom: 2rem;
}

.page-news .news-hero-inner {
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.page-news .news-breadcrumb {
  font-family: var(--font-body, Inter, sans-serif);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  align-items: center;
}

.page-news .news-breadcrumb a {
  color: rgba(255,255,255,0.9);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.page-news .news-breadcrumb a:hover,
.page-news .news-breadcrumb a:focus-visible {
  color: var(--news-sidebar-active, #FFB300);
  outline: none;
}

.page-news .news-breadcrumb-sep {
  user-select: none;
  color: rgba(255,255,255,0.5);
}

.page-news .news-hero-title {
  font-family: var(--font-heading, Inter, Roboto, sans-serif);
  font-size: 2.5rem;
  font-weight: 800;
  font-style: italic;
  line-height: 1.1;
  margin: 0 0 0.75rem;
  color: inherit;
  letter-spacing: -0.02em;
}

.page-news .news-hero-desc {
  font-family: var(--font-body, Inter, sans-serif);
  font-size: 1.125rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.9);
  max-width: 680px;
  margin: 0 0 2rem;
}

.page-news .news-hero-figure {
  margin: 0 -1.25rem;
  line-height: 0;
}

.page-news .news-hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
  object-position: center 30%;
}

.page-news .news-br-desktop {
  display: none;
}

/* ---- 主内容容器 ---- */
.page-news .news-body {
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
  display: flex;
  flex-direction: column;
  gap: var(--news-gap);
}

/* ---- 侧边栏 ---- */
.page-news .news-sidebar {
  background: var(--news-sidebar-bg);
  color: var(--news-sidebar-text);
  border-radius: var(--news-card-radius);
  padding: 1.5rem 1.25rem;
  flex-shrink: 0;
}

.page-news .news-sidebar-title {
  font-family: var(--font-heading, Inter, Roboto, sans-serif);
  font-size: 1.125rem;
  font-weight: 700;
  font-style: italic;
  margin: 0 0 1rem;
  color: var(--news-sidebar-active, #FFB300);
}

.page-news .news-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news .news-sidebar-item {
  font-family: var(--font-body, Inter, sans-serif);
  font-size: 0.9375rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.1);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  user-select: none;
  border: 1px solid transparent;
}

.page-news .news-sidebar-item:hover,
.page-news .news-sidebar-item:focus-visible {
  background: rgba(255,255,255,0.22);
  outline: 2px solid var(--news-sidebar-active, #FFB300);
  outline-offset: 2px;
}

.page-news .news-sidebar-item.is-active {
  background: var(--news-sidebar-active, #FFB300);
  color: var(--news-sidebar-bg, #004A8F);
  font-weight: 600;
  border-color: var(--news-sidebar-active, #FFB300);
}

.page-news .news-sidebar-hint {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.55);
  margin: 1rem 0 0;
  font-family: var(--font-body, Inter, sans-serif);
}

/* ---- 主内容区 ---- */
.page-news .news-main {
  flex: 1;
  min-width: 0;
}

/* ---- 区块 ---- */
.page-news .news-section {
  margin-bottom: var(--news-section-gap);
}

.page-news .news-section-header {
  margin-bottom: 1.5rem;
}

.page-news .news-section-title {
  font-family: var(--font-heading, Inter, Roboto, sans-serif);
  font-size: 1.75rem;
  font-weight: 800;
  font-style: italic;
  color: var(--color-neutral-dark, #2C2C2C);
  margin: 0 0 0.375rem;
  position: relative;
  display: inline-block;
}

.page-news .news-section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 4px;
  background: var(--color-primary, #00A86B);
  border-radius: 2px;
  margin-top: 0.25rem;
}

.page-news .news-section-desc {
  font-family: var(--font-body, Inter, sans-serif);
  font-size: 1rem;
  color: #555;
  margin: 0.5rem 0 0;
  max-width: 560px;
}

/* ---- 卡片网格 ---- */
.page-news .news-card-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ---- 卡片 ---- */
.page-news .news-card {
  background: var(--news-card-bg);
  border-radius: var(--news-card-radius);
  padding: 1.5rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  border-left: 4px solid var(--color-primary, #00A86B);
}

.page-news .news-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.page-news .news-card-body {
  display: flex;
  flex-direction: column;
}

.page-news .news-card-title {
  font-family: var(--font-heading, Inter, Roboto, sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-neutral-dark, #2C2C2C);
  margin: 0 0 0.5rem;
}

.page-news .news-card-summary {
  font-family: var(--font-body, Inter, sans-serif);
  font-size: 1rem;
  color: #444;
  line-height: 1.6;
  margin: 0 0 0.75rem;
}

.page-news .news-card-detail {
  font-family: var(--font-body, Inter, sans-serif);
  font-size: 0.9375rem;
  color: #333;
  line-height: 1.7;
  margin-bottom: 0;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.35s ease, margin 0.3s ease;
}

.page-news .news-card-detail.is-open {
  max-height: 600px;
  opacity: 1;
  margin-bottom: 1rem;
}

.page-news .news-card-detail p {
  margin: 0 0 0.75rem;
}

.page-news .news-card-detail a {
  color: var(--color-primary, #00A86B);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
}

.page-news .news-card-detail a:hover {
  color: var(--color-accent, #FFB300);
}

.page-news .news-card-toggle {
  align-self: flex-start;
  font-family: var(--font-body, Inter, sans-serif);
  font-size: 0.875rem;
  padding: 0.5rem 1.25rem;
  background: var(--color-primary, #00A86B);
  color: #fff;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  font-weight: 500;
  margin-top: 0.25rem;
}

.page-news .news-card-toggle:hover,
.page-news .news-card-toggle:focus-visible {
  background: var(--color-accent, #FFB300);
  color: var(--color-neutral-dark, #2C2C2C);
  outline: none;
  transform: scale(1.02);
}

.page-news .news-card-toggle[aria-expanded="true"] {
  background: var(--color-secondary, #004A8F);
}

/* ---- 带图片的卡片 ---- */
.page-news .news-card--image .news-card-figure {
  margin: 0.75rem 0;
  line-height: 0;
  border-radius: 12px;
  overflow: hidden;
}

.page-news .news-card-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 12px;
  transition: transform 0.3s ease;
}

.page-news .news-card--image:hover .news-card-img {
  transform: scale(1.01);
}

/* ---- 更多入口 ---- */
.page-news .news-more {
  text-align: center;
  padding: 2rem 0 1rem;
  border-top: 1px solid #e0e0e0;
  margin-top: 0.5rem;
}

.page-news .news-more-text {
  font-family: var(--font-body, Inter, sans-serif);
  font-size: 1rem;
  color: #555;
  margin: 0 0 1.25rem;
}

.page-news .news-more-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.page-news .news-more-link {
  font-size: 0.9375rem;
  padding: 0.5rem 1.25rem;
  background: transparent;
  border: 2px solid var(--color-primary, #00A86B);
  color: var(--color-primary, #00A86B);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}

.page-news .news-more-link:hover,
.page-news .news-more-link:focus-visible {
  background: var(--color-primary, #00A86B);
  color: #fff;
  outline: none;
}

/* ---- 滚动显现（配合全局 .kiwi-reveal） ---- */
.page-news [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.page-news [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 兼容 reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .page-news [data-reveal] {
    transition: none;
    opacity: 1;
    transform: none;
  }
  .page-news .news-card {
    transition: none;
  }
  .page-news .news-card:hover {
    transform: none;
  }
  .page-news .news-card--image:hover .news-card-img {
    transform: none;
  }
  .page-news .news-card-detail {
    transition: none;
  }
  .page-news .news-card-toggle {
    transition: none;
  }
  .page-news .news-more-link {
    transition: none;
  }
}

/* ========================================
   桌面端：≥ 768px
   ======================================== */
@media (min-width: 768px) {
  .page-news .news-hero {
    padding: 3.5rem 0 0;
    clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
  }

  .page-news .news-hero-title {
    font-size: 3.25rem;
  }

  .page-news .news-hero-desc {
    font-size: 1.25rem;
    max-width: 720px;
  }

  .page-news .news-br-desktop {
    display: inline;
  }

  .page-news .news-body {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
    padding-bottom: 4rem;
  }

  .page-news .news-sidebar {
    width: var(--news-sidebar-width);
    position: sticky;
    top: calc(var(--header-height, 64px) + 1rem);
    padding: 1.75rem 1.25rem;
  }

  .page-news .news-sidebar-list {
    flex-direction: column;
    gap: 0.375rem;
  }

  .page-news .news-sidebar-item {
    padding: 0.5rem 1rem;
    border-radius: 999px;
  }

  .page-news .news-sidebar-hint {
    margin-top: 1.25rem;
  }

  .page-news .news-main {
    flex: 1;
    min-width: 0;
  }

  .page-news .news-section-title {
    font-size: 2rem;
  }

  .page-news .news-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
  }

  .page-news .news-card {
    padding: 1.75rem;
  }

  .page-news .news-card-title {
    font-size: 1.3125rem;
  }

  .page-news .news-more {
    padding: 2.5rem 0 1.5rem;
  }
}

/* ========================================
   大桌面端：≥ 1024px
   ======================================== */
@media (min-width: 1024px) {
  .page-news .news-hero-title {
    font-size: 4rem;
  }

  .page-news .news-hero-desc {
    font-size: 1.375rem;
  }

  .page-news .news-sidebar {
    width: 220px;
  }

  .page-news .news-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-news .news-card--image:last-child {
    grid-column: span 2;
  }
}

/* ========================================
   超大桌面端：≥ 1280px
   ======================================== */
@media (min-width: 1280px) {
  .page-news .news-hero-title {
    font-size: 4.5rem;
  }

  .page-news .news-sidebar {
    width: 240px;
    padding: 2rem 1.5rem;
  }
}