/* ===================================================
   page-news —— 品牌动态（时间线列表 + 纯 CSS 筛选）
   作用域限定，移动端优先。
   =================================================== */
.page-news {
  --news-bg: var(--color-bg, #0D0D0D);
  --news-surface: var(--color-surface, #FFF8E7);
  --news-surface-alt: var(--color-surface-alt, #F5F0E8);
  --news-text-light: var(--color-text-light, #F5F0E8);
  --news-text-dark: var(--color-text-dark, #2C1E16);
  --news-text-muted: var(--color-text-muted, #8A7F78);
  --news-primary: var(--color-primary, #00D4FF);
  --news-accent: var(--color-accent, #FF6B00);
  --news-gold: var(--color-gold, #D4A843);
  --news-border: var(--color-border, rgba(255,248,231,0.12));
  --news-border-strong: var(--color-border-strong, rgba(0,212,255,0.25));
  --news-shadow: var(--color-shadow, rgba(0,0,0,0.5));
  --news-radius-sm: var(--radius-sm, 4px);
  --news-radius-pill: var(--radius-pill, 40px);
  --news-transition: var(--transition-base, 0.3s cubic-bezier(0.4,0,0.2,1));
  --news-transition-fast: var(--transition-fast, 0.2s cubic-bezier(0.4,0,0.2,1));
  --news-side-padding: var(--side-padding, clamp(16px,5vw,64px));
  --news-space-2: var(--space-2, 16px);
  --news-space-3: var(--space-3, 24px);
  --news-space-4: var(--space-4, 32px);
  --news-space-5: var(--space-5, 40px);
  --news-space-6: var(--space-6, 48px);
  --news-space-8: var(--space-8, 64px);
  --news-tl-dot-size: 14px;
  --news-tl-line-width: 2px;
  --news-card-radius: 4px;

  /* 背景与文字 */
  background-color: var(--news-bg);
  color: var(--news-text-light);
  font-family: var(--font-body, -apple-system,BlinkMacSystemFont,'PingFang SC','Noto Sans SC','Microsoft YaHei',sans-serif);
  line-height: 1.6;
  min-height: 100vh;
  padding: var(--news-space-6) 0 var(--news-space-8);
}

/* ---------- 容器 ---------- */
.page-news .container {
  max-width: var(--content-max-width, 1280px);
  margin: 0 auto;
  padding: 0 var(--news-side-padding);
  position: relative;
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-family: var(--font-mono, 'SF Mono','JetBrains Mono','Fira Code',monospace);
  color: var(--news-text-muted);
  margin-bottom: var(--news-space-2);
  letter-spacing: 0.02em;
}
.page-news .breadcrumb a {
  color: var(--news-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--news-transition-fast);
}
.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  border-bottom-color: var(--news-primary);
  outline: none;
}
.page-news .breadcrumb-sep {
  color: var(--news-text-muted);
  font-weight: 300;
}

/* ---------- 页眉（标题 + 抽象图） ---------- */
.page-news .news-masthead {
  margin-bottom: var(--news-space-6);
}
.page-news .masthead-layout {
  display: flex;
  align-items: flex-start;
  gap: var(--news-space-5);
}
.page-news .masthead-text {
  flex: 1 1 60%;
}
.page-news .masthead-title {
  font-family: var(--font-heading, -apple-system,BlinkMacSystemFont,'PingFang SC','Noto Sans SC','Microsoft YaHei',sans-serif);
  font-weight: 900;
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  line-height: 1.05;
  color: var(--news-surface);
  margin: 0 0 var(--news-space-2);
  letter-spacing: -0.02em;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
.page-news .masthead-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--news-text-muted);
  max-width: 620px;
  margin: 0;
  line-height: 1.7;
  font-weight: 300;
}
.page-news .masthead-visual {
  flex: 0 0 300px;
  text-align: right;
}
.page-news .masthead-img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  max-height: 600px;
  object-fit: cover;
  border-radius: var(--news-radius-sm);
  box-shadow: 0 8px 32px var(--news-shadow);
  margin-left: auto;
}

/* ---------- 分类筛选 ---------- */
.page-news .filter-section {
  margin-bottom: var(--news-space-6);
  position: relative;
  z-index: 2;
}
.page-news .filter-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-news .filter-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font-body);
  color: var(--news-text-muted);
  background: transparent;
  border: 1px solid var(--news-border);
  border-radius: var(--news-radius-pill);
  cursor: pointer;
  user-select: none;
  transition: background var(--news-transition-fast), color var(--news-transition-fast), border-color var(--news-transition-fast), box-shadow var(--news-transition-fast);
  white-space: nowrap;
}
.page-news .filter-label:hover {
  border-color: var(--news-primary);
  color: var(--news-primary);
  background: rgba(0,212,255,0.06);
}
.page-news .filter-label:focus-visible {
  outline: 2px solid var(--news-primary);
  outline-offset: 2px;
}
.page-news .filter-icon {
  width: 20px;
  height: 20px;
  border-radius: 2px;
  object-fit: contain;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity var(--news-transition-fast);
}
.page-news .filter-label:hover .filter-icon {
  opacity: 1;
}

/* ---------- 筛选逻辑（纯 CSS） ---------- */
/* 默认显示所有文章 */
.page-news .tl-article {
  display: flex;
}
/* 全部选中时全部显示 */
#filter-all:checked ~ .timeline .tl-article {
  display: flex;
}
/* 玩法 */
#filter-play:checked ~ .timeline .tl-article[data-category="play"] {
  display: flex;
}
#filter-play:checked ~ .timeline .tl-article:not([data-category="play"]) {
  display: none;
}
/* 数据 */
#filter-data:checked ~ .timeline .tl-article[data-category="data"] {
  display: flex;
}
#filter-data:checked ~ .timeline .tl-article:not([data-category="data"]) {
  display: none;
}
/* 会员 */
#filter-member:checked ~ .timeline .tl-article[data-category="member"] {
  display: flex;
}
#filter-member:checked ~ .timeline .tl-article:not([data-category="member"]) {
  display: none;
}
/* 公告 */
#filter-announce:checked ~ .timeline .tl-article[data-category="announce"] {
  display: flex;
}
#filter-announce:checked ~ .timeline .tl-article:not([data-category="announce"]) {
  display: none;
}

/* 标签选中态 */
#filter-all:checked ~ .filter-labels label[for="filter-all"],
#filter-play:checked ~ .filter-labels label[for="filter-play"],
#filter-data:checked ~ .filter-labels label[for="filter-data"],
#filter-member:checked ~ .filter-labels label[for="filter-member"],
#filter-announce:checked ~ .filter-labels label[for="filter-announce"] {
  background: var(--news-accent);
  color: #fff;
  border-color: var(--news-accent);
  box-shadow: 0 2px 12px rgba(255,107,0,0.25);
}
#filter-all:checked ~ .filter-labels label[for="filter-all"] .filter-icon,
#filter-play:checked ~ .filter-labels label[for="filter-play"] .filter-icon,
#filter-data:checked ~ .filter-labels label[for="filter-data"] .filter-icon,
#filter-member:checked ~ .filter-labels label[for="filter-member"] .filter-icon,
#filter-announce:checked ~ .filter-labels label[for="filter-announce"] .filter-icon {
  opacity: 1;
  filter: brightness(10);
}

/* ---------- 时间线 ---------- */
.page-news .timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: var(--news-space-8);
}

/* 每个条目 */
.page-news .tl-article {
  display: flex;
  gap: var(--news-space-4);
  position: relative;
  padding: var(--news-space-3) 0;
  transition: opacity var(--news-transition), transform var(--news-transition);
}
/* 筛选消失时平滑淡出（仅可见时适用） */
.page-news .tl-article[style*="display: none"] {
  opacity: 0;
  transform: translateX(-12px);
}

/* 时间轴圆点容器 */
.page-news .tl-dot {
  flex: 0 0 40px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 6px;
}
/* 竖线（贯穿整个条目） */
.page-news .tl-dot::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: var(--news-tl-line-width);
  background: var(--news-border);
  transform: translateX(-50%);
  transition: background var(--news-transition-fast);
}
/* 圆点 */
.page-news .tl-dot::after {
  content: '';
  position: relative;
  z-index: 2;
  width: var(--news-tl-dot-size);
  height: var(--news-tl-dot-size);
  border-radius: 50%;
  background: var(--news-accent);
  border: 3px solid var(--news-bg);
  box-shadow: 0 0 0 2px var(--news-accent), 0 2px 8px rgba(255,107,0,0.2);
  transition: transform var(--news-transition-fast), box-shadow var(--news-transition-fast);
  flex-shrink: 0;
  margin-top: 4px;
}
/* 悬停时圆点放大高亮 */
.page-news .tl-article:hover .tl-dot::after,
.page-news .tl-article:focus-within .tl-dot::after {
  transform: scale(1.3);
  box-shadow: 0 0 0 4px var(--news-accent), 0 4px 16px rgba(255,107,0,0.35);
}
.page-news .tl-article:hover .tl-dot::before {
  background: var(--news-accent);
  opacity: 0.4;
}

/* 最后一个条目的竖线缩短（到底部留空） */
.page-news .tl-article:last-child .tl-dot::before {
  bottom: 50%;
}

/* ---------- 卡片 ---------- */
.page-news .tl-card {
  flex: 1;
  min-width: 0;
  background: var(--news-surface);
  color: var(--news-text-dark);
  border-radius: var(--news-card-radius);
  border: 1px solid var(--news-border);
  border-left: 3px solid var(--news-border);
  padding: var(--news-space-3) var(--news-space-4);
  box-shadow: 0 2px 12px var(--news-shadow);
  transition: border-left-color var(--news-transition), box-shadow var(--news-transition), transform var(--news-transition);
}
.page-news .tl-article:hover .tl-card,
.page-news .tl-article:focus-within .tl-card {
  border-left-color: var(--news-accent);
  box-shadow: 0 8px 32px var(--news-shadow);
  transform: translateY(-2px);
}

/* 卡片顶部（文字 + 图片） */
.page-news .tl-card-top {
  display: flex;
  align-items: flex-start;
  gap: var(--news-space-3);
}
.page-news .tl-card-text {
  flex: 1;
  min-width: 0;
}
.page-news .tl-card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1.3;
  color: var(--news-text-dark);
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}
.page-news .tl-card-summary {
  font-size: 0.95rem;
  color: var(--news-text-muted);
  line-height: 1.7;
  margin: 0;
  font-weight: 300;
}
.page-news .tl-card-img {
  flex: 0 0 100px;
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: var(--news-radius-sm);
  border: 1px solid var(--news-border);
  transition: transform var(--news-transition-fast), box-shadow var(--news-transition-fast);
}
.page-news .tl-article:hover .tl-card-img {
  transform: scale(1.03);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

/* ---------- 展开全文（details / summary） ---------- */
.page-news .tl-card-full {
  margin-top: var(--news-space-2);
  border-top: 1px solid var(--news-border);
  padding-top: var(--news-space-2);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--news-text-dark);
}
.page-news .tl-card-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--news-accent);
  cursor: pointer;
  user-select: none;
  padding: 4px 0;
  list-style: none;
  transition: color var(--news-transition-fast), gap var(--news-transition-fast);
}
.page-news .tl-card-toggle::-webkit-details-marker {
  display: none;
}
.page-news .tl-card-toggle::marker {
  display: none;
  content: '';
}
.page-news .tl-card-toggle::before {
  content: '[ + ]';
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--news-accent);
  transition: transform var(--news-transition-fast);
}
.page-news details[open] .tl-card-toggle::before {
  content: '[ – ]';
}
.page-news .tl-card-toggle:hover,
.page-news .tl-card-toggle:focus-visible {
  color: var(--news-primary);
  gap: 10px;
  outline: none;
}
.page-news .tl-card-toggle:focus-visible {
  outline: 2px solid var(--news-primary);
  outline-offset: 4px;
  border-radius: 2px;
}
.page-news .tl-card-body {
  padding-top: var(--news-space-2);
  animation: news-fadeIn 0.35s ease;
}
.page-news .tl-card-body p {
  margin: 0 0 var(--news-space-2);
}
.page-news .tl-card-body a {
  color: var(--news-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--news-transition-fast);
}
.page-news .tl-card-body a:hover,
.page-news .tl-card-body a:focus-visible {
  border-bottom-color: var(--news-primary);
  outline: none;
}

@keyframes news-fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- 水印 ---------- */
.page-news .news-watermark {
  position: absolute;
  right: var(--news-side-padding);
  bottom: 0;
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
  transform: translateY(20%);
}
.page-news .watermark-img {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

/* ===================================================
   响应式 —— 平板及以下
   =================================================== */
@media (max-width: 820px) {
  .page-news {
    padding: var(--news-space-4) 0 var(--news-space-6);
  }
  .page-news .masthead-layout {
    flex-direction: column;
    gap: var(--news-space-3);
  }
  .page-news .masthead-text {
    flex: 1 1 auto;
  }
  .page-news .masthead-visual {
    flex: 0 0 auto;
    width: 100%;
    text-align: center;
  }
  .page-news .masthead-img {
    max-width: 200px;
    max-height: 400px;
    margin: 0 auto;
  }
  .page-news .masthead-title {
    font-size: clamp(1.8rem, 8vw, 2.8rem);
  }
  .page-news .filter-labels {
    gap: 8px;
  }
  .page-news .filter-label {
    padding: 6px 14px;
    font-size: 0.82rem;
  }
  .page-news .tl-article {
    gap: var(--news-space-2);
    padding: var(--news-space-2) 0;
  }
  .page-news .tl-dot {
    flex: 0 0 28px;
    padding-top: 4px;
  }
  .page-news .tl-dot::after {
    width: 10px;
    height: 10px;
    border-width: 2px;
    margin-top: 2px;
  }
  .page-news .tl-card {
    padding: var(--news-space-2) var(--news-space-3);
  }
  .page-news .tl-card-top {
    flex-direction: column;
    gap: var(--news-space-2);
  }
  .page-news .tl-card-img {
    flex: 0 0 auto;
    width: 80px;
    height: 80px;
    order: -1;
  }
  .page-news .tl-card-title {
    font-size: 1.1rem;
  }
  .page-news .tl-card-summary {
    font-size: 0.88rem;
  }
  .page-news .news-watermark {
    display: none;
  }
}

/* ===================================================
   响应式 —— 手机窄屏
   =================================================== */
@media (max-width: 480px) {
  .page-news .masthead-img {
    max-width: 140px;
    max-height: 280px;
  }
  .page-news .filter-label {
    font-size: 0.75rem;
    padding: 5px 10px;
  }
  .page-news .filter-icon {
    width: 16px;
    height: 16px;
  }
  .page-news .tl-dot {
    flex: 0 0 20px;
  }
  .page-news .tl-dot::after {
    width: 8px;
    height: 8px;
    border-width: 2px;
  }
  .page-news .tl-card {
    padding: var(--news-space-2);
  }
  .page-news .tl-card-img {
    width: 60px;
    height: 60px;
  }
  .page-news .tl-card-title {
    font-size: 1rem;
  }
  .page-news .tl-card-toggle {
    font-size: 0.75rem;
  }
}