:root {
    --primary: #007BFF;
    --secondary: #6F42C1;
    --accent: #FFC107;
    --light: #FFFFFF;
    --dark: #343A40;
    --success: #28A745;
    --info: #17A2B8;
    --warning: #FF8C00;
    --danger: #DC3545;
    --gradient: linear-gradient(135deg, var(--primary), #E0B0FF, var(--light));
  }

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

  body {
    background: var(--gradient);
    background-size: 600% 600%;
    animation: GradientAnimation 15s ease infinite;
    color: var(--dark);
    line-height: 1.6;
    min-height: 100%;
    padding-top: 80px;
  }

  @keyframes GradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

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

  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 80px;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
  }

  .logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
  }

  .logo img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  }

  .nav-links {
    display: flex;
    gap: 30px;
  }

  .nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
  }

  .nav-links a:hover {
    color: var(--primary);
  }

  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
  }

  .nav-links a:hover::after {
    width: 100%;
  }

  .hero {
    text-align: center;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
  }

  .hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--light);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    animation: fadeIn 1s ease;
  }

  .hero p {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 40px;
    color: rgba(255, 255, 255, 0.9);
  }

  .notice {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
    padding: 15px;
    border-radius: 10px;
    margin: 40px auto;
    max-width: 800px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
  }

  .notice p {
    color: var(--light);
    font-weight: 500;
  }

  .grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
    gap: 30px;
    padding: 40px 0;
  }

  .card {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    overflow: hidden;
    position: relative;
  }

  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  }

  .card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 15px 15px 0 0;
  }

  .card-content {
    padding: 30px;
  }

  .card h2 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary);
  }

  .card p {
    margin-bottom: 20px;
    color: var(--dark);
  }

  .data-flow {
    width: 100%;
    height: 200px;
    background: rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    margin: 40px 0;
  }

  .data-flow::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 100%;
    background: linear-gradient(120deg, var(--primary), #E0B0FF, var(--accent));
    animation: flow 10s linear infinite;
  }

  @keyframes flow {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }

  .dashboard {
    display: flex;
    justify-content: space-around;
    padding: 30px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 15px;
    margin: 40px 0;
  }

  .chart {
    width: 45%;
    height: 200px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .chart::after {
    content: '';
    position: absolute;
    width: 80%;
    height: 80%;
    background: conic-gradient(var(--primary) 25%, #E0B0FF 25% 50%, var(--accent) 50% 75%, var(--success) 75%);
    animation: rotate 5s linear infinite;
    border-radius: 50%;
  }

  @keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
  }

  .btn {
    background: var(--warning);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    text-decoration: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

  .btn:hover {
    background: #FFA500;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
  }

  .loader {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 40px auto;
  }

  @keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
  }

  .icon {
    width: 60px;
    height: 60px;
    margin: 20px auto;
    background: var(--primary);
    mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm0 10.99h7c-.53 4.12-3.28 7.79-7 8.94V12H5V6.3l7-3.11V11.99z"/></svg>') no-repeat center;
    transition: transform 0.3s;
  }

  .icon:hover {
    transform: scale(1.1) rotate(15deg);
  }

  .blockchain {
    width: 120px;
    height: 120px;
    background: linear-gradient(45deg, var(--success), var(--info));
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    animation: pulse 2s infinite;
    margin: 40px auto;
  }

  @keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.7; }
    100% { transform: scale(1); opacity: 1; }
  }

  pre {
    background: rgba(0, 0, 0, 0.8);
    border-radius: 10px;
    padding: 20px;
    overflow-x: auto;
    margin: 20px 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  }

  code {
    font-family: 'Courier New', monospace;
    color: #f8f8f2;
    font-size: 14px;
    line-height: 1.5;
  }

  article {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    padding: 40px;
    margin: 40px 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  }

  article h2 {
    color: var(--primary);
    margin: 30px 0 20px;
    font-size: 28px;
    position: relative;
    padding-bottom: 10px;
  }

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), transparent);
  }

  article p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.7;
  }

  footer {
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 30px 0;
    text-align: center;
    margin-top: 80px;
  }

  .footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
  }

  .footer-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
  }

  .footer-links a:hover {
    color: var(--accent);
  }

  @media (max-width: 768px) {
    .navbar {
      padding: 0 20px;
    }
    
    .nav-links {
      gap: 15px;
    }
    
    .hero h1 {
      font-size: 36px;
    }
    
    .hero p {
      font-size: 18px;
    }
    
    .grid-container {
      grid-template-columns: 1fr;
    }
    
    .dashboard {
      flex-direction: column;
      gap: 20px;
    }
    
    .chart {
      width: 100%;
    }
  }

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