/* ============================================
   赛道介绍页 - 共享样式
   ============================================ */

/* --- 赛道 Hero 色系 --- */
.hero--cyan .page-hero { background: linear-gradient(135deg, #B2EBF2 0%, #80DEEA 50%, #4DD0E1 100%); }
.hero--purple .page-hero { background: linear-gradient(135deg, #D1C4E9 0%, #B39DDB 50%, #9575CD 100%); }
.hero--orange .page-hero { background: linear-gradient(135deg, #FFCCBC 0%, #FFAB91 50%, #FF8A65 100%); }
.hero--cyan .page-hero-tag { color: #00838F; border-color: rgba(0,131,143,0.25); background: rgba(0,188,212,0.1); }
.hero--purple .page-hero-tag { color: #512DA8; border-color: rgba(81,45,168,0.25); background: rgba(124,58,237,0.1); }
.hero--orange .page-hero-tag { color: #BF360C; border-color: rgba(191,54,12,0.25); background: rgba(255,107,53,0.1); }
.hero--cyan .hero-text-section h1 { color: #006064; }
.hero--purple .hero-text-section h1 { color: #311B92; }
.hero--orange .hero-text-section h1 { color: #BF360C; }

/* --- 赛道介绍内容区 --- */
.track-detail-section {
  padding: 2.5rem 2rem 4rem; 
}
.track-detail-section + .track-detail-section {
  padding-top: 2rem;
}
.track-detail-inner {
  max-width: 860px;
  margin: 0 auto;
}
.track-detail-inner h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--deep-blue);
  margin-bottom: 1.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--border-light);
}
.track-detail-inner h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.5rem 0 0.6rem;
}
.track-detail-inner p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 1rem;
}

/* 方向/要点卡片网格 */
.track-direction-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin: 1.25rem 0;
}
.track-direction-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1rem 1.2rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  transition: all var(--duration-fast) var(--ease-out);
}
.track-direction-item:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.track-direction-item strong {
  display: block;
  color: var(--deep-blue);
  margin-bottom: 0.3rem;
  font-size: 0.9rem;
}

/* 比赛日程时间线 */
.track-timeline {
  position: relative;
  padding-left: 2rem;
  margin: 1.25rem 0;
}
.track-timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--border-light);
}
.track-timeline-item {
  position: relative;
  padding-bottom: 1.5rem;
}
.track-timeline-item:last-child {
  padding-bottom: 0;
}
.track-timeline-item::before {
  content: '';
  position: absolute;
  left: -1.65rem;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--deep-blue);
  border: 2px solid var(--bg-card);
  box-shadow: 0 0 0 2px var(--border-light);
}
.track-timeline-item h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}
.track-timeline-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* 奖项卡片 */
.track-awards {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.25rem 0;
}
.track-award-item {
  flex: 1 1 150px;
  min-width: 120px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
  transition: all var(--duration-fast) var(--ease-out);
}
.track-award-item:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.track-award-item .award-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--deep-blue);
  margin-bottom: 0.3rem;
}
.track-award-item .award-count {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
}

/* 提交要求列表 */
.track-require-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0;
}
.track-require-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 0.75rem;
}
.track-require-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 6px rgba(33,150,243,0.3);
}

/* 参赛对象标签 */
.track-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}
.track-tag {
  display: inline-flex;
  padding: 0.3rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--deep-blue);
  background: rgba(26,58,138,0.06);
  border: 1px solid rgba(26,58,138,0.12);
  border-radius: var(--radius-full);
}

/* 赛道 CTA */
.track-cta-section {
  padding: 5rem 2rem;
  text-align: center;
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}
.track-cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(33,150,243,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.track-cta-inner {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.track-cta-inner h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--deep-blue);
  margin-bottom: 0.75rem;
}
.track-cta-inner p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}
.track-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 3rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out);
  box-shadow: 0 6px 24px rgba(26,58,138,0.25);
}
.track-cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(26,58,138,0.4);
}
.track-cta-btn--cyan {
  background: linear-gradient(90deg, #00BCD4, #2196F3);
}
.track-cta-btn--purple {
  background: linear-gradient(90deg, #7C3AED, #5C6BC0);
}
.track-cta-btn--orange {
  background: linear-gradient(90deg, #FF6B35, #FF7B42);
}

/* 面包屑 */
.track-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0;
  justify-content: center;
}
.track-breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}
.track-breadcrumb a:hover {
  color: var(--deep-blue);
}
.track-breadcrumb span {
  color: var(--text-muted);
}

/* --- 响应式 --- */
@media (max-width: 768px) {
  .track-direction-grid {
    grid-template-columns: 1fr;
  }
  .track-awards {
    flex-direction: column;
  }
  .track-award-item {
    flex: 1 1 auto;
  }
  .track-detail-section {
    padding: 2.5rem 1.25rem;
  }
  .track-cta-section {
    padding: 3.5rem 1.5rem;
  }
}