:root {
    --primary-gradient: linear-gradient(135deg, #0D47A1, #8E24AA);
    --secondary-gradient: linear-gradient(45deg, #00C853, #00BFA5);
    --accent-color: #6A5ACD;
    --text-light: #FFFFFF;
    --text-dark: #2D3748;
    --bg-dark: #1A202C;
    --bg-light: #F7FAFC;
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
    overflow-x: hidden;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }

  .header {
    background: var(--primary-gradient);
    color: var(--text-light);
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

  .header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
    z-index: 0;
  }

  .header-content {
    position: relative;
    z-index: 1;
    text-align: center;
  }

  .header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
  }

  .header p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    opacity: 0.9;
  }

  .notice {
    background: rgba(255,255,255,0.2);
    padding: 10px 20px;
    border-radius: 50px;
    display: inline-block;
    font-size: 0.9rem;
    margin-top: 1rem;
    backdrop-filter: blur(5px);
  }

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

  .nav-item {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    position: relative;
  }

  .nav-item:hover {
    background: rgba(255,255,255,0.2);
  }

  .nav-item::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--text-light);
    transition: width 0.3s ease;
  }

  .nav-item:hover::after {
    width: 60%;
  }

  .main-content {
    padding: 4rem 0;
  }

  article {
    background: white;
    border-radius: 15px;
    padding: 3rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 3rem;
  }

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

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 3px;
    background: var(--secondary-gradient);
  }

  article h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--text-dark);
  }

  article p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
  }

  pre {
    background: var(--bg-dark);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
    overflow: auto;
    position: relative;
  }

  code {
    font-family: 'Courier New', monospace;
    color: #F8F8F2;
    font-size: 0.9rem;
    line-height: 1.5;
  }

  pre::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 15px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #FF5F56;
    box-shadow: 20px 0 0 #FFBD2E, 40px 0 0 #27C93F;
  }

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

  .gallery-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
    position: relative;
  }

  .gallery-item:hover {
    transform: translateY(-10px);
  }

  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .gallery-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .gallery-item:hover::after {
    opacity: 0.2;
  }

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

  .data-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
  }

  .data-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  }

  .data-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
  }

  .data-card ul {
    list-style: none;
  }

  .data-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
  }

  .data-card li:last-child {
    border-bottom: none;
  }

  .footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 3rem 0;
    text-align: center;
  }

  .footer p {
    opacity: 0.7;
    margin-top: 1rem;
  }

  @media (max-width: 768px) {
    .header h1 {
      font-size: 2rem;
    }
    
    article {
      padding: 2rem;
    }
    
    article h2 {
      font-size: 1.8rem;
    }
    
    article h3 {
      font-size: 1.3rem;
    }
  }

  @media (max-width: 480px) {
    .header h1 {
      font-size: 1.8rem;
    }
    
    .header p {
      font-size: 1rem;
    }
    
    article {
      padding: 1.5rem;
    }
    
    article h2 {
      font-size: 1.5rem;
    }
  }

  /* Animations */
  @keyframes float {
    0%, 100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-10px);
    }
  }

  .floating {
    animation: float 3s ease-in-out infinite;
  }

  .scroll-fade {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .scroll-fade.visible {
    opacity: 1;
    transform: translateY(0);
  }