.custom-hero-slider-wrapper {
    /* 已适配 Teefrye 蓝色品牌视觉体系 */
    --brand: #3B82F6;
    --brand-deep: #1E3A8A; /* 采用深蓝色作为底色，防止任何绿屏闪烁 */
    --bg-main: #FAF8F5;
    --accent: #F97316; /* 高转化暖橙色点缀 */
    --subtitle: #E0F2FE;
    
    position: relative;
    width: 100%;
    height: 650px;
    overflow: hidden;
    background-color: var(--brand-deep) !important; /* 强制大容器底色为品牌深蓝 */
    font-family: 'Quicksand', 'Fredoka', -apple-system, sans-serif;
  }

  .custom-slider-container {
    position: relative;
    width: 100%;
    height: 100%;
    background-color: var(--brand-deep) !important;
  }

  .custom-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    background-color: var(--brand-deep) !important; /* 强制单页底色为深蓝 */
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    padding-left: 8%;
    box-sizing: border-box;
  }

  .custom-slide.active {
    opacity: 1;
    visibility: visible;
  }

  .custom-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-color: var(--brand-deep) !important;
    z-index: 1;
  }
  
  /* 💙 强制生效的品牌蓝暗色渐变遮罩 */
  .custom-hero-bg::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    /* 左侧 75% 品牌深蓝遮罩，右侧 25% 极浅蓝遮罩，保证文字极佳可读性 */
    background: linear-gradient(90deg, rgba(30, 58, 138, 0.15) 0%, rgba(30, 58, 138, 0.15) 100%) !important;
    z-index: 2 !important;
  }

  .custom-hero-inner { 
    position: relative;
    z-index: 3 !important; /* 确保文字在蓝色遮罩上方 */
    max-width: 580px; 
    text-align: left;
  }

  .custom-slide.active .custom-hero-inner {
    animation: sliderFadeUp 0.8s cubic-bezier(0.215, 0.610, 0.355, 1) both;
  }

  /* 英文小标签 */
  .custom-hero-tag {
    color: var(--accent); 
    font-size: 13px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.18em;
    display: inline-block;
    margin-bottom: 16px;
  }

  .custom-hero-tag.tag-stem {
    color: #FDE047; /* 明亮活泼的 STEM 黄色 */
  }

  /* 大标题 */
  .custom-hero-title { 
    font-family: 'Fredoka', 'Quicksand', Georgia, sans-serif;
    color: #ffffff !important; 
    font-size: 56px; 
    font-weight: 600;
    line-height: 1.1; 
    margin: 0 0 20px 0; 
    letter-spacing: -0.01em;
    text-shadow: 0 2px 14px rgba(0,0,0,0.2);
  }
  
  .custom-hero-title em {
    font-style: normal;
    color: var(--accent);
    font-weight: 700;
  }

  .custom-hero-subtitle {
    color: var(--subtitle) !important; 
    font-size: 16px;
    line-height: 1.6;
    margin: 0 0 34px 0;
    font-weight: 400;
  }

  /* 圆角加购/探索按钮 */
  .custom-hero-btn { 
    background-color: var(--brand); 
    color: #FFFFFF !important; 
    text-decoration: none !important; 
    padding: 15px 36px; 
    font-weight: 700; 
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 8px;
    display: inline-block; 
    border: 1px solid var(--brand);
    transition: all 0.25s ease; 
  }

  .custom-hero-btn:hover { 
    background-color: #2563EB; 
    border-color: #2563EB;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37,99,235,0.35);
  }

  /* 磁性轨道车专用的对比色暖橙按钮 */
  .custom-hero-btn.btn-stem {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #FFFFFF !important;
  }
  .custom-hero-btn.btn-stem:hover {
    background-color: #EA580C;
    border-color: #EA580C;
    box-shadow: 0 8px 24px rgba(249,115,22,0.35);
  }

  /* 侧边箭头 */
  .slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.15);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 16px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .slider-arrow:hover { 
    background: #FFFFFF; 
    color: var(--brand); 
    border-color: #FFFFFF;
  }
  .prev-arrow { left: 24px; }
  .next-arrow { right: 24px; }

  /* 指示圆点 */
  .slider-dots-container {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 12px;
  }
  .slider-dot {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  .slider-dot.active, .slider-dot:hover {
    background: #FFFFFF;
    transform: scale(1.3);
  }

  @keyframes sliderFadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* 📱 响应式手机端 UI */
  @media (max-width: 992px) {
    .custom-hero-slider-wrapper { 
      height: 520px; 
    }
    
    .custom-slide {
      padding: 24px;
      text-align: center;
      justify-content: center;
    }

    .custom-hero-bg::before {
      background: rgba(30, 58, 138, 0.25) !important;
    }

    .custom-hero-inner { 
      max-width: 100%; 
      padding: 0 8px;
    }
    .custom-hero-title { 
      font-size: 36px; 
      line-height: 1.15;
    }
    .custom-hero-subtitle { 
      font-size: 14px; 
      margin-bottom: 28px;
      color: #FFFFFF !important;
    }
    .slider-arrow { 
      width: 38px; 
      height: 38px; 
      font-size: 13px; 
    }
    .prev-arrow { left: 12px; }
    .next-arrow { right: 12px; }
    
    .slider-dots-container {
      bottom: 20px;
    }
  }