:root {
    --primary-blue: #1a4480;
    --secondary-blue: #4a86e8;
    --accent-purple: #8e44ad;
    --dark-blue: #0d2b50;
    --light-bg: #f8fafc;

    --gradient-primary: linear-gradient(135deg, #7d87b5 0%, #764ba2 100%);
}


  /* Hero Section - zj_hero */
  #zj_hero {
    background: linear-gradient(135deg, #667eea 0%, #2c4532 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    color: white;
    padding: 120px 0 100px;
    position: relative;
    overflow: hidden;
  }
  
  #zj_hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" preserveAspectRatio="none"><polygon fill="rgba(255,255,255,0.1)" points="0,100 1000,0 1000,100"/></svg>');
    background-size: cover;
  }
  
  #zj_hero .container {
    position: relative;
    z-index: 2;
  }
  
  #zj_hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    animation: fadeInUp 0.8s ease-out;
  }
  
  #zj_hero .lead {
    font-size: 1.5rem;
    font-weight: 300;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease-out 0.2s both;
  }
  
  #zj_hero p:last-of-type {
    font-size: 1.1rem;
    opacity: 0.8;
    animation: fadeInUp 0.8s ease-out 0.4s both;
  }
  
  #zj_hero .cta-button {
    background: rgba(255,255,255,0.2);
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    padding: 15px 35px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.8s ease-out 0.6s both;
  }
  
  #zj_hero .cta-button:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
  }
  
  #zj_hero .btn-outline-light {
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    padding: 15px 35px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out 0.8s both;
  }
  
  #zj_hero .btn-outline-light:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
  }

  /* 研究结果展示区域 */
  .research-figure {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    border-radius: 25px;
    padding: 50px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(44, 111, 187, 0.1);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    max-width: 1300px;
    margin: 0 auto;
  }

  .research-figure::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2c6fbb, #34a4dc, #4db6ac);
    animation: gradientShift 3s ease-in-out infinite;
  }

  .research-figure:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12);
  }

  .fig-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c6fbb;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
  }

  .fig-title i {
    margin-right: 10px;
    background: linear-gradient(135deg, #2c6fbb, #34a4dc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .figure-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: auto auto;
    gap: 25px;
    margin-bottom: 40px;
  }

  .main-result {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f2ff 100%);
    border-radius: 20px;
    padding: 0 40px;
    text-align: center;
    font-weight: 600;
    font-size: 1.3rem;
    color: #2c6fbb;
    border: 2px solid rgba(44, 111, 187, 0.1);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    position: relative;
    overflow: hidden;
  }

  .main-result::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(44, 111, 187, 0.05), transparent);
    animation: shimmer 3s infinite;
  }

  .main-result:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(44, 111, 187, 0.15);
    border-color: rgba(44, 111, 187, 0.3);
  }

  .main-result > div:first-child {
    order: 1;
    z-index: 2;
    margin-bottom: 15px;
  }

  .main-result img {
    order: 2;
    z-index: 2;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    height: auto;
    transition: all 0.3s ease;
  }

  .main-result img:hover {
    transform: scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
  }

  .cell-type {
    background: #ffffff;
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  }

  .cell-type:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  }

  .cell-type h6 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c6fbb;
    margin-bottom: 15px;
    line-height: 1.4;
  }

  .cell-type img {
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
  }

  .cell-type img:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
  }

  .hippocampus {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
  }

  .stream {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
  }

  .comparison-charts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
  }

  .chart {
    background: #ffffff;
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  .chart:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  }

  .chart h6 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c6fbb;
    margin-bottom: 8px;
  }

  .chart p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 15px;
  }

  .correlation-bar {
    background: #f0f0f0;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
    position: relative;
  }

  .correlation-fill {
    height: 100%;
    background: linear-gradient(90deg, #2c6fbb, #34a4dc);
    border-radius: 4px;
    transition: width 1s ease;
    position: relative;
    overflow: hidden;
  }

  .correlation-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
  }

  .correlation-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: #2c6fbb;
    margin-bottom: 10px;
  }

  .chart img {
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
  }

  .chart img:hover {
    transform: scale(1.02);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.12);
  }

  /* 响应式设计 */
  @media (max-width: 992px) {
    .figure-grid {
      grid-template-columns: 1fr;
      grid-template-rows: auto;
    }

    .main-result {
      grid-column: 1 / 2;
      grid-row: auto;
      min-height: 300px;
    }

    .hippocampus, .stream {
      grid-column: 1 / 2;
      grid-row: auto;
    }

    .comparison-charts {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 768px) {
    .research-figure {
      padding: 30px 20px;
    }

    .main-result {
      padding: 30px 20px;
      font-size: 1.1rem;
    }
  }

  /* 动画效果 */
  @keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
  }

  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .research-figure {
    animation: fadeInUp 0.6s ease-out;
  }

  .main-result, .cell-type, .chart {
    animation: fadeInUp 0.6s ease-out;
  }

  .main-result:nth-child(1) { animation-delay: 0.1s; }
  .cell-type:nth-child(2) { animation-delay: 0.2s; }
  .cell-type:nth-child(3) { animation-delay: 0.3s; }
  .chart:nth-child(1) { animation-delay: 0.4s; }
  .chart:nth-child(2) { animation-delay: 0.5s; }
  .chart:nth-child(3) { animation-delay: 0.6s; }








.header-bg {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    margin-bottom: 30px;
    overflow: hidden;
}

.tech-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    padding: 25px;
    margin-bottom: 30px;
    transition: transform 0.3s ease;
    border-top: 4px solid var(--secondary-blue);
}

.tech-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.12);
}

.card-title {
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(26, 68, 128, 0.15);
}

.card-title i {
    margin-right: 12px;
    font-size: 1.5rem;
}

.brain-image {
    /* background: linear-gradient(135deg, #e1f0ff, #b8d4fa); */
    border-radius: 10px;
    height: 380px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
    margin-bottom: 20px;
}

.scale-bar {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.cells-label {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(142, 68, 173, 0.8);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
}

.comparison-chart {
    background: white;
    border-radius: 10px;
    padding: 20px;
    position: relative;
}

.feature-highlight {
    background: rgba(74, 134, 232, 0.1);
    border-radius: 12px;
    padding: 15px 20px;
    margin-top: 20px;
    border-left: 4px solid var(--secondary-blue);
}

.tech-tag {
    background-color: rgba(26, 68, 128, 0.1);
    border-radius: 30px;
    padding: 6px 16px;
    font-size: 0.95rem;
    display: inline-block;
    margin-right: 8px;
    margin-bottom: 10px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background-color: rgba(26, 68, 128, 0.2);
    transform: scale(1.05);
}

.stats-box {
    background: linear-gradient(to right, rgba(142, 68, 173, 0.1), rgba(74, 134, 232, 0.1));
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    margin: 15px 0;
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin: 10px 0;
}

.tech-advantage {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.tech-advantage i {
    background: var(--secondary-blue);
    color: white;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-right: 15px;
    flex-shrink: 0;
}

.chart-title {
    font-weight: 600;
    margin-bottom: 25px;
    text-align: center;
    color: var(--primary-blue);
    position: relative;
}

.chart-title::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--secondary-blue);
    border-radius: 10px;
}

.superior-label {
    background: var(--secondary-blue);
    color: white;
    padding: 12px 20px;
    border-radius: 30px;
    font-weight: 600;
    position: absolute;
    top: 10px;
    right: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

@media (max-width: 992px) {
    .brain-image, .comparison-chart {
        height: 320px;
    }
}

@media (max-width: 768px) {
    .brain-image, .comparison-chart {
        height: 300px;
        margin-bottom: 30px;
    }
    
    .stats-box {
        padding: 15px;
    }
    
    .stats-number {
        font-size: 2rem;
    }
}

.section-title {
  padding-top: 3rem !important;
  font-weight: 700;
  margin-bottom: 2rem;
  position: relative;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}