:root {
    --primary: #1E90FF;
    --secondary: #8E44AD;
    --accent: #FFC300;
    --bg-light: #F5F5F5;
    --text-dark: #333;
    --text-light: #fff;
    --gradient-blue: linear-gradient(135deg, #1E90FF, #4CC9F0);
    --gradient-orange: linear-gradient(45deg, #FFC300, #FF5733);
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
  }

  body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
  }

  .header {
    background: var(--gradient-blue);
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 0 0 30px 30px;
    box-shadow: 0 10px 30px rgba(30, 144, 255, 0.2);
  }

  .header::before {
    content: '';
    position: absolute;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 60s linear infinite;
    z-index: 0;
  }

  @keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }

  .header-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
  }

  h1 {
    font-size: 2.5rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
  }

  .tagline {
    color: rgba(255,255,255,0.9);
    font-size: 1.2rem;
    margin-bottom: 2rem;
  }

  .notice {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 1rem;
    border-radius: 10px;
    margin-top: 2rem;
    color: var(--text-light);
    font-weight: bold;
  }

  .container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 2rem;
  }

  article {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 5px 30px rgba(0,0,0,0.05);
    margin-bottom: 3rem;
  }

  h2 {
    color: var(--primary);
    font-size: 1.8rem;
    margin: 2rem 0 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
  }

  h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-orange);
    border-radius: 3px;
  }

  p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
  }

  pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 1.5rem;
    border-radius: 10px;
    overflow-x: auto;
    margin: 2rem 0;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.3);
  }

  code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
  }

  .image-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .image-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  }

  .image-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
  }

  .image-caption {
    padding: 1.5rem;
    text-align: center;
  }

  .nav-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
  }

  .nav-link {
    background: var(--gradient-blue);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 10px rgba(30, 144, 255, 0.3);
  }

  .nav-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(30, 144, 255, 0.4);
  }

  .footer {
    text-align: center;
    padding: 2rem;
    background: #2d2d2d;
    color: white;
    margin-top: 3rem;
  }

  @media (max-width: 768px) {
    h1 {
      font-size: 2rem;
    }
    
    .header {
      min-height: 250px;
      padding: 1.5rem;
    }
    
    article {
      padding: 2rem;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
  }