/* =============================================
   page-news 品牌动态
   作用域限定：.page-news
   移动端优先 + 桌面栅格增强
   ============================================= */

/* ---------- 作用域根变量 ---------- */
.page-news {
  --tl-line-color: var(--color-gold, #e6b800);
  --tl-dot-size: 14px;
  --tl-line-width: 3px;
  --tl-card-radius: var(--radius-md, 8px);
  --tl-card-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.12));
  --tl-featured-border: var(--color-gold, #e6b800);
  --bg-update: rgba(10, 31, 63, 0.06);
  --bg-insight: rgba(0, 204, 102, 0.08);
  --bg-feedback: rgba(255, 102, 0, 0.08);
  --color-update: var(--color-primary, #0a1f3f);
  --color-insight: var(--color-green, #00cc66);
  --color-feedback: var(--color-orange, #ff6600);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding: var(--spacing-md, 16px) var(--spacing-lg, 24px) 0;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.85rem;
  color: var(--color-gray, #d9d9d9);
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  width: 100%;
}
.page-news .breadcrumb a {
  color: var(--color-gold, #e6b800);
  text-decoration: none;
  transition: opacity var(--transition-fast, 0.2s ease);
}
.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  opacity: 0.7;
  text-decoration: underline;
}
.page-news .breadcrumb .separator {
  margin: 0 var(--spacing-xs, 4px);
  color: var(--color-gray, #d9d9d9);
}

/* ---------- 首屏错位色块 ---------- */
.page-news .hero-block {
  position: relative;
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  padding: var(--spacing-xl, 48px) var(--spacing-lg, 24px) var(--spacing-lg, 24px);
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: center;
}
.page-news .hero-shape {
  position: absolute;
  pointer-events: none;
  border-radius: 50% 0 50% 0;
}
.page-news .hero-shape--1 {
  top: -30px;
  left: -40px;
  width: 200px;
  height: 200px;
  background: var(--color-primary, #0a1f3f);
  opacity: 0.12;
  transform: rotate(12deg);
}
.page-news .hero-shape--2 {
  bottom: -20px;
  right: -20px;
  width: 160px;
  height: 160px;
  background: var(--color-gold, #e6b800);
  opacity: 0.10;
  transform: rotate(-8deg) skewX(4deg);
}
.page-news .hero-text {
  position: relative;
  z-index: 1;
}
.page-news .hero-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 700;
  font-style: italic;
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--color-dark, #2b1d1d);
  margin: 0 0 var(--spacing-sm, 8px);
  line-height: 1.15;
}
.page-news .hero-desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1rem;
  color: var(--color-dark, #2b1d1d);
  max-width: 600px;
  line-height: 1.6;
  margin: 0;
}

/* ---------- 页面内容容器 ---------- */
.page-news .page-news-content {
  position: relative;
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  padding: 0 var(--spacing-lg, 24px) var(--spacing-2xl, 64px);
  background-color: var(--color-cream, #f5f0e1);
}

/* ---------- 筛选栏 ---------- */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm, 8px);
  margin-bottom: var(--spacing-xl, 48px);
  padding: var(--spacing-md, 16px) 0;
  border-bottom: 1px solid var(--color-gray, #d9d9d9);
}
.page-news .filter-label {
  display: inline-block;
  padding: var(--spacing-xs, 4px) var(--spacing-md, 16px);
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark, #2b1d1d);
  background: transparent;
  border: 2px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition-fast, 0.2s ease);
  user-select: none;
}
.page-news .filter-label:hover {
  border-color: var(--color-gold, #e6b800);
  color: var(--color-gold, #e6b800);
}
.page-news .filter-label:focus-visible {
  outline: 2px solid var(--color-gold, #e6b800);
  outline-offset: 2px;
}

/* radio 驱动筛选状态 */
.page-news #nf-all:checked ~ .filter-bar .filter-label[for="nf-all"],
.page-news #nf-update:checked ~ .filter-bar .filter-label[for="nf-update"],
.page-news #nf-insight:checked ~ .filter-bar .filter-label[for="nf-insight"],
.page-news #nf-feedback:checked ~ .filter-bar .filter-label[for="nf-feedback"] {
  background: var(--color-gold, #e6b800);
  color: var(--color-dark, #2b1d1d);
  border-color: var(--color-gold, #e6b800);
}

/* ---------- 装饰图容器 ---------- */
.page-news .tl-decor-wrap {
  display: none;
}
@media (min-width: 1024px) {
  .page-news .tl-decor-wrap {
    display: block;
    position: absolute;
    left: calc(-200px - var(--spacing-lg, 24px));
    top: 120px;
    width: 200px;
    height: 800px;
    pointer-events: none;
    z-index: 0;
  }
  .page-news .tl-decor-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
    border-radius: var(--radius-md, 8px);
  }
}

/* ---------- 时间线 ---------- */
.page-news .timeline {
  position: relative;
  padding-left: calc(var(--tl-dot-size, 14px) + var(--spacing-lg, 24px));
}
/* 时间线竖线 */
.page-news .timeline::before {
  content: '';
  position: absolute;
  left: calc(var(--tl-dot-size, 14px) / 2);
  top: 0;
  bottom: 0;
  width: var(--tl-line-width, 3px);
  background: repeating-linear-gradient(
    to bottom,
    var(--tl-line-color, #e6b800) 0,
    var(--tl-line-color, #e6b800) 6px,
    transparent 6px,
    transparent 12px
  );
  opacity: 0.4;
}

/* ---------- 章节标题节点 ---------- */
.page-news .tl-section-head {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 8px);
  margin: var(--spacing-xl, 48px) 0 var(--spacing-md, 16px);
  position: relative;
}
.page-news .tl-section-head:first-of-type {
  margin-top: 0;
}
.page-news .tl-head-marker {
  position: absolute;
  left: calc(-1 * (var(--tl-dot-size, 14px) + var(--spacing-lg, 24px)) + var(--tl-dot-size, 14px) / 2 - 8px);
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-gold, #e6b800);
  border: 3px solid var(--color-cream, #f5f0e1);
  box-shadow: 0 0 0 2px var(--color-gold, #e6b800);
  flex-shrink: 0;
}
.page-news .tl-head-text {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 700;
  font-style: italic;
  font-size: 1.25rem;
  color: var(--color-dark, #2b1d1d);
  margin: 0;
  line-height: 1.3;
}

/* ---------- 时间线卡片 ---------- */
.page-news .tl-card {
  position: relative;
  display: flex;
  margin-bottom: var(--spacing-lg, 24px);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.page-news .tl-card.revealed {
  opacity: 1;
  transform: translateY(0);
}
.page-news .tl-card-dot {
  position: absolute;
  left: calc(-1 * (var(--tl-dot-size, 14px) + var(--spacing-lg, 24px)) + var(--tl-dot-size, 14px) / 2 - 5px);
  top: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-gold, #e6b800);
  border: 2px solid var(--color-cream, #f5f0e1);
  box-shadow: 0 0 0 2px var(--color-gold, #e6b800);
  flex-shrink: 0;
  z-index: 1;
}
.page-news .tl-card-inner {
  flex: 1;
  background: #fff;
  border-radius: var(--tl-card-radius, 8px);
  box-shadow: var(--tl-card-shadow, 0 1px 3px rgba(0,0,0,0.12));
  padding: var(--spacing-md, 16px) var(--spacing-md, 16px) var(--spacing-sm, 8px);
  border-left: 4px solid var(--color-gray, #d9d9d9);
  transition: box-shadow var(--transition-base, 0.35s ease), transform var(--transition-base, 0.35s ease);
}
.page-news .tl-card-inner:hover {
  box-shadow: var(--shadow-md, 0 4px 12px rgba(10,31,63,0.15));
  transform: translateX(4px);
}

/* 卡片类型色条 */
.page-news .tl-card--update .tl-card-inner { border-left-color: var(--color-update, #0a1f3f); background: var(--bg-update, rgba(10,31,63,0.06)); }
.page-news .tl-card--insight .tl-card-inner { border-left-color: var(--color-insight, #00cc66); background: var(--bg-insight, rgba(0,204,102,0.08)); }
.page-news .tl-card--feedback .tl-card-inner { border-left-color: var(--color-feedback, #ff6600); background: var(--bg-feedback, rgba(255,102,0,0.08)); }

/* 首屏卡片金色边框 */
.page-news .tl-card--featured .tl-card-inner {
  border-left-color: var(--tl-featured-border, #e6b800);
  border: 2px solid var(--tl-featured-border, #e6b800);
  background: #fff;
}
.page-news .tl-card--featured .tl-card-dot {
  width: 14px;
  height: 14px;
  background: var(--color-gold, #e6b800);
  border-width: 3px;
  box-shadow: 0 0 0 3px var(--color-gold, #e6b800);
}

/* ---------- 卡片内元素 ---------- */
.page-news .tl-card-badge {
  display: inline-block;
  font-family: var(--font-data, 'Courier New', monospace);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: var(--spacing-xs, 4px);
  color: #fff;
}
.page-news .badge--update { background: var(--color-update, #0a1f3f); }
.page-news .badge--insight { background: var(--color-insight, #00cc66); }
.page-news .badge--feedback { background: var(--color-feedback, #ff6600); }

.page-news .tl-card-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-weight: 700;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--color-dark, #2b1d1d);
  margin: var(--spacing-xs, 4px) 0 var(--spacing-sm, 8px);
  line-height: 1.3;
}
.page-news .tl-card-summary {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9rem;
  color: var(--color-dark, #2b1d1d);
  line-height: 1.6;
  margin: 0 0 var(--spacing-sm, 8px);
}
.page-news .tl-card-media {
  margin: var(--spacing-sm, 8px) 0;
  max-width: 300px;
  width: 100%;
  border-radius: var(--radius-sm, 4px);
  overflow: hidden;
}
.page-news .tl-card-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm, 4px);
}

/* ---------- details 展开 ---------- */
.page-news .tl-card-details {
  margin-top: var(--spacing-sm, 8px);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.85rem;
  color: var(--color-dark, #2b1d1d);
}
.page-news .tl-card-details-btn {
  display: inline-block;
  cursor: pointer;
  font-family: var(--font-data, 'Courier New', monospace);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-gold, #e6b800);
  padding: var(--spacing-xs, 4px) 0;
  user-select: none;
  transition: color var(--transition-fast, 0.2s ease);
}
.page-news .tl-card-details-btn:hover,
.page-news .tl-card-details-btn:focus-visible {
  color: var(--color-dark, #2b1d1d);
}
.page-news .tl-card-details-body {
  padding: var(--spacing-sm, 8px) 0;
  line-height: 1.6;
  border-top: 1px dashed var(--color-gray, #d9d9d9);
  margin-top: var(--spacing-xs, 4px);
}
.page-news .tl-card-details-body a {
  color: var(--color-gold, #e6b800);
  text-decoration: underline;
  font-weight: 600;
}

/* ---------- 筛选驱动显示隐藏 ---------- */
/* 全部显示 */
.page-news #nf-all:checked ~ .timeline .tl-card,
.page-news #nf-all:checked ~ .timeline .tl-section-head {
  display: flex;
}
/* 功能更新 */
.page-news #nf-update:checked ~ .timeline .tl-card[data-type="update"],
.page-news #nf-update:checked ~ .timeline .tl-section-head[data-type="update"] {
  display: flex;
}
.page-news #nf-update:checked ~ .timeline .tl-card:not([data-type="update"]),
.page-news #nf-update:checked ~ .timeline .tl-section-head:not([data-type="update"]) {
  display: none;
}
/* 行业观察 */
.page-news #nf-insight:checked ~ .timeline .tl-card[data-type="insight"],
.page-news #nf-insight:checked ~ .timeline .tl-section-head[data-type="insight"] {
  display: flex;
}
.page-news #nf-insight:checked ~ .timeline .tl-card:not([data-type="insight"]),
.page-news #nf-insight:checked ~ .timeline .tl-section-head:not([data-type="insight"]) {
  display: none;
}
/* 用户反馈 */
.page-news #nf-feedback:checked ~ .timeline .tl-card[data-type="feedback"],
.page-news #nf-feedback:checked ~ .timeline .tl-section-head[data-type="feedback"] {
  display: flex;
}
.page-news #nf-feedback:checked ~ .timeline .tl-card:not([data-type="feedback"]),
.page-news #nf-feedback:checked ~ .timeline .tl-section-head:not([data-type="feedback"]) {
  display: none;
}

/* ---------- 页面底部导航 ---------- */
.page-news .page-footer-nav {
  margin-top: var(--spacing-xl, 48px);
  padding-top: var(--spacing-md, 16px);
  border-top: 1px solid var(--color-gray, #d9d9d9);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9rem;
  text-align: center;
  color: var(--color-dark, #2b1d1d);
}
.page-news .page-footer-nav a {
  color: var(--color-gold, #e6b800);
  text-decoration: underline;
  font-weight: 600;
}
.page-news .page-footer-nav a:hover {
  opacity: 0.7;
}

/* =============================================
   响应式 - 移动端优先调整
   ============================================= */

/* 小屏：缩小间距，隐藏装饰，精简内边距 */
@media (max-width: 639px) {
  .page-news .hero-block {
    padding: var(--spacing-lg, 24px) var(--spacing-md, 16px) var(--spacing-md, 16px);
    min-height: 140px;
  }
  .page-news .hero-shape--1 {
    width: 120px;
    height: 120px;
    top: -20px;
    left: -20px;
  }
  .page-news .hero-shape--2 {
    width: 100px;
    height: 100px;
    bottom: -10px;
    right: -10px;
  }
  .page-news .page-news-content {
    padding-left: var(--spacing-md, 16px);
    padding-right: var(--spacing-md, 16px);
  }
  .page-news .timeline {
    padding-left: calc(var(--tl-dot-size, 14px) + var(--spacing-md, 16px));
  }
  .page-news .tl-card-dot {
    left: calc(-1 * (var(--tl-dot-size, 14px) + var(--spacing-md, 16px)) + var(--tl-dot-size, 14px) / 2 - 5px);
  }
  .page-news .tl-head-marker {
    left: calc(-1 * (var(--tl-dot-size, 14px) + var(--spacing-md, 16px)) + var(--tl-dot-size, 14px) / 2 - 8px);
  }
  .page-news .tl-card-media {
    max-width: 100%;
  }
  .page-news .tl-card-inner {
    padding: var(--spacing-sm, 8px);
  }
  .page-news .filter-label {
    font-size: 0.8rem;
    padding: 2px 12px;
  }
  .page-news .breadcrumb {
    padding-left: var(--spacing-md, 16px);
    padding-right: var(--spacing-md, 16px);
  }
  /* 移动端筛选栏可横向滚动 */
  .page-news .filter-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: var(--spacing-sm, 8px);
  }
  .page-news .filter-bar::-webkit-scrollbar {
    display: none;
  }
}

/* 中屏 640-1023 */
@media (min-width: 640px) and (max-width: 1023px) {
  .page-news .hero-block {
    padding: var(--spacing-xl, 48px) var(--spacing-lg, 24px) var(--spacing-lg, 24px);
  }
  .page-news .tl-card-inner {
    padding: var(--spacing-md, 16px) var(--spacing-md, 16px) var(--spacing-sm, 8px);
  }
  .page-news .tl-card-media {
    max-width: 240px;
  }
}

/* 桌面 1024+ */
@media (min-width: 1024px) {
  .page-news .timeline {
    padding-left: calc(var(--tl-dot-size, 14px) + var(--spacing-xl, 48px));
  }
  .page-news .tl-card-dot {
    left: calc(-1 * (var(--tl-dot-size, 14px) + var(--spacing-xl, 48px)) + var(--tl-dot-size, 14px) / 2 - 5px);
    top: 28px;
  }
  .page-news .tl-head-marker {
    left: calc(-1 * (var(--tl-dot-size, 14px) + var(--spacing-xl, 48px)) + var(--tl-dot-size, 14px) / 2 - 8px);
  }
  .page-news .tl-card-inner {
    padding: var(--spacing-lg, 24px) var(--spacing-lg, 24px) var(--spacing-md, 16px);
  }
  .page-news .tl-card-title {
    font-size: 1.2rem;
  }
  .page-news .tl-card-summary {
    font-size: 0.95rem;
  }
  .page-news .tl-card-media {
    max-width: 300px;
  }
  .page-news .filter-bar {
    gap: var(--spacing-md, 16px);
  }
  .page-news .tl-card {
    margin-bottom: var(--spacing-xl, 48px);
  }
}

/* ---------- reduced-motion 兼容 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .tl-card {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-news .tl-card-inner:hover {
    transform: none;
  }
}