/* ========== page-news 专属样式 ========== */
.page-news {
  --news-sidebar-width: 180px;
  --news-gap: 2rem;
  --card-radius: 12px;
  --card-border-width: 3px;
  --card-shadow-offset: 6px;
  --section-spacing: 3.5rem;
  --nav-highlight-color: var(--primary-neon-blue);
  --accent-gradient: linear-gradient(135deg, var(--primary-neon-blue), var(--primary-neon-purple));
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-dark);
  padding: 1.5rem 1rem 3rem;
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
}

/* ---------- 面包屑 ---------- */
.news-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.news-breadcrumb a {
  color: var(--primary-neon-blue);
  text-decoration: none;
  transition: color 0.2s;
}
.news-breadcrumb a:hover {
  color: var(--accent-blood-orange);
  text-shadow: 0 0 8px var(--shadow-accent);
}
.breadcrumb-sep {
  color: var(--text-secondary);
  opacity: 0.5;
}

/* ---------- 标题区 ---------- */
.news-header {
  margin-bottom: 2.5rem;
  position: relative;
}
.news-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-primary);
  text-shadow: 0 0 20px var(--hover-glow), 0 0 40px rgba(0,212,255,0.3);
  margin: 0 0 0.75rem;
  position: relative;
  display: inline-block;
}
.news-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--accent-gradient);
  margin-top: 0.5rem;
  border-radius: 2px;
}
.news-subtitle {
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.7;
  margin: 0.5rem 0 0;
}

/* ---------- 主布局：侧边栏 + 内容 ---------- */
.news-layout {
  display: flex;
  gap: var(--news-gap);
  align-items: flex-start;
  position: relative;
}

/* ---------- 左侧分类导航 ---------- */
.news-nav {
  flex: 0 0 var(--news-sidebar-width);
  position: sticky;
  top: 2rem;
  z-index: 10;
}
.news-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.news-nav-link {
  display: block;
  padding: 0.75rem 1rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none;
  border-left: 3px solid transparent;
  background: rgba(31,40,51,0.5);
  border-radius: 0 8px 8px 0;
  transition: all 0.25s ease;
  position: relative;
}
.news-nav-link:hover {
  color: var(--primary-neon-blue);
  border-left-color: var(--primary-neon-blue);
  background: rgba(0,212,255,0.08);
  text-shadow: 0 0 12px var(--hover-glow);
}
.news-nav-link[data-revealed],
.news-nav-link:focus-visible {
  color: var(--primary-neon-blue);
  border-left-color: var(--primary-neon-blue);
  background: rgba(0,212,255,0.12);
}

/* 锚点目标高亮配合 */
.news-nav-link:target {
  color: var(--accent-blood-orange);
  border-left-color: var(--accent-blood-orange);
  background: rgba(255,69,0,0.12);
}

/* ---------- 右侧内容区 ---------- */
.news-articles {
  flex: 1;
  min-width: 0;
}

/* ---------- 每个章节 ---------- */
.news-section {
  margin-bottom: var(--section-spacing);
  scroll-margin-top: 3rem;
  position: relative;
}
.section-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-primary);
  margin: 0 0 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-heading::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent-blood-orange);
  transform: rotate(45deg);
  flex-shrink: 0;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  margin: 0 0 1.5rem;
  padding-left: 1.25rem;
  border-left: 2px solid rgba(0,212,255,0.3);
}

/* ---------- 卡片网格（赛事规则） ---------- */
.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px,100%), 1fr));
  gap: 1.5rem;
}

/* ---------- 通用卡片样式 ---------- */
.rule-card.grid-card {
  background: var(--bg-card);
  border: var(--card-border-width) solid var(--border-highlight);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow-offset) var(--card-shadow-offset) 0px 0px var(--shadow-accent);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  display: flex;
  flex-direction: column;
}
.rule-card.grid-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 10px 10px 0px 0px var(--accent-blood-orange);
  border-color: var(--accent-blood-orange);
}

.card-img-wrap {
  width: 100%;
  overflow: hidden;
  background: #111;
  position: relative;
}
.card-img-wrap::after {
  content: '';
  display: block;
  position: absolute;
  inset: 0;
  border-bottom: 2px solid var(--border-highlight);
  opacity: 0.4;
}
.card-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 300 / 200;
  transition: transform 0.4s ease, filter 0.4s ease;
}
.rule-card.grid-card:hover .card-img {
  transform: scale(1.04);
  filter: brightness(1.15) contrast(1.1);
}

.card-body {
  padding: 1.25rem 1.25rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--primary-neon-blue);
  margin: 0 0 0.6rem;
  line-height: 1.4;
}
.card-summary {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0 0 1rem;
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent-blood-orange);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
  align-self: flex-start;
}
.card-link:hover {
  color: var(--primary-neon-blue);
  border-bottom-color: var(--primary-neon-blue);
  text-shadow: 0 0 10px var(--hover-glow);
}
.link-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}
.card-link:hover .link-arrow {
  transform: translateX(4px);
}

/* ---------- 导航技巧区域 ---------- */
.tips-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  background: var(--bg-card);
  border: 2px solid rgba(0,212,255,0.25);
  border-radius: var(--card-radius);
  padding: 1.5rem;
  box-shadow: 4px 4px 0px 0px rgba(0,212,255,0.2);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.tips-layout:hover {
  box-shadow: 8px 8px 0px 0px rgba(0,212,255,0.35);
  border-color: var(--primary-neon-blue);
}
.tips-visual {
  flex: 0 0 380px;
  max-width: 100%;
  border-radius: 8px;
  overflow: hidden;
}
.tips-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 400 / 300;
  border: 1px solid rgba(255,255,255,0.06);
}
.tips-content {
  flex: 1;
  min-width: 240px;
}
.tips-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--primary-neon-blue);
  margin: 0 0 1rem;
}
.tips-steps {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  counter-reset: step-counter;
}
.tips-steps li {
  counter-increment: step-counter;
  padding: 0.7rem 0 0.7rem 2.5rem;
  position: relative;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.tips-steps li:last-child {
  border-bottom: none;
}
.tips-steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 1.8rem;
  height: 1.8rem;
  background: var(--accent-gradient);
  color: var(--bg-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}
.tips-steps li strong {
  color: var(--text-primary);
  font-weight: 600;
}
.tips-note {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0.5rem 0 0;
}
.inline-link {
  color: var(--primary-neon-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s;
}
.inline-link:hover {
  color: var(--accent-blood-orange);
  border-bottom-color: var(--accent-blood-orange);
}

/* ---------- 更新动态区域 ---------- */
.updates-layout {
  max-width: 680px;
}
.updates-card {
  background: var(--bg-card);
  border: 2px solid rgba(255,69,0,0.3);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: 5px 5px 0px 0px var(--shadow-accent);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-wrap: wrap;
}
.updates-card:hover {
  box-shadow: 8px 8px 0px 0px var(--accent-blood-orange);
  transform: translate(-2px, -2px);
}
.updates-img-wrap {
  flex: 0 0 280px;
  max-width: 100%;
  overflow: hidden;
}
.updates-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 300 / 200;
  transition: transform 0.4s ease;
}
.updates-card:hover .updates-img {
  transform: scale(1.04);
}
.updates-body {
  flex: 1;
  min-width: 220px;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
}
.updates-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent-blood-orange);
  margin: 0 0 0.6rem;
  line-height: 1.4;
}
.updates-summary {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0 0 0.8rem;
}
.updates-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.updates-features li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.5;
}
.updates-features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary-neon-blue);
  font-weight: 700;
}

/* ---------- 滚动显现动画 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.23,1,0.32,1), transform 0.6s cubic-bezier(0.23,1,0.32,1);
}
[data-reveal][data-revealed] {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 移动端优先基础适配 ---------- */
@media (max-width: 768px) {
  .page-news {
    padding: 1rem 0.75rem 2rem;
  }

  .news-layout {
    flex-direction: column;
    gap: 1.5rem;
  }

  .news-nav {
    flex: none;
    position: static;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    background: var(--bg-dark);
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .news-nav::-webkit-scrollbar {
    display: none;
  }
  .news-nav-list {
    flex-direction: row;
    gap: 0.4rem;
    padding: 0 0.25rem;
  }
  .news-nav-link {
    border-left: none;
    border-bottom: 3px solid transparent;
    border-radius: 6px 6px 0 0;
    padding: 0.5rem 0.9rem;
    font-size: 0.85rem;
    white-space: nowrap;
    background: rgba(31,40,51,0.4);
  }
  .news-nav-link:hover {
    border-left-color: transparent;
    border-bottom-color: var(--primary-neon-blue);
  }
  .news-nav-link[data-revealed],
  .news-nav-link:focus-visible {
    border-left-color: transparent;
    border-bottom-color: var(--primary-neon-blue);
  }

  .section-heading {
    font-size: 1.3rem;
  }
  .section-desc {
    font-size: 0.9rem;
    padding-left: 0.75rem;
  }

  .rules-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .tips-layout {
    flex-direction: column;
    padding: 1rem;
  }
  .tips-visual {
    flex: none;
    width: 100%;
  }

  .updates-card {
    flex-direction: column;
  }
  .updates-img-wrap {
    flex: none;
    width: 100%;
  }

  .card-body {
    padding: 1rem;
  }
  .updates-body {
    padding: 1rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .tips-visual {
    flex: 0 0 300px;
  }
  .updates-img-wrap {
    flex: 0 0 220px;
  }
  .news-nav {
    flex: 0 0 150px;
  }
}

/* ---------- 桌面端微调 ---------- */
@media (min-width: 1025px) {
  .page-news {
    padding: 2rem 2rem 4rem;
  }
  .news-nav {
    flex: 0 0 var(--news-sidebar-width);
  }
  .news-articles {
    padding-left: 0.5rem;
  }
}

/* ---------- 高密度信息保持秩序 ---------- */
@media (min-width: 640px) and (max-width: 768px) {
  .rules-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------- 打印样式 ---------- */
@media print {
  .page-news {
    background: #fff;
    color: #222;
    padding: 1rem;
  }
  .news-nav {
    display: none;
  }
  .card-img,
  .tips-img,
  .updates-img {
    border: 1px solid #ccc;
  }
  .rule-card.grid-card,
  .tips-layout,
  .updates-card {
    box-shadow: none;
    border-color: #aaa;
  }
  .news-title {
    text-shadow: none;
  }
}