:root {
    --primary: #0f2027;
    --secondary: #203a43;
    --accent: #39ff14;
    --dark: #2c5364;
    --light: #ffffff;
    --gray: #e0e0e0;
  }

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

  body {
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--dark));
    color: var(--light);
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    min-height: 100%;
    overflow-x: hidden;
  }

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

  .header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--primary);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  }

  .header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: 1px;
  }

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

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

  .nav-link:hover {
    color: var(--accent);
  }

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

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

  .hero {
    padding: 150px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(57, 255, 20, 0.1), transparent 60%);
    z-index: -1;
  }

  .hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--light), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientShift 8s ease infinite;
    background-size: 200% 200%;
  }

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

  .hero-subtitle {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    color: var(--gray);
  }

  .notice {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 8px;
    margin: 40px auto;
    max-width: 800px;
    text-align: center;
    border-left: 4px solid var(--accent);
  }

  .notice-text {
    font-size: 0.9rem;
    color: var(--gray);
  }

  .content {
    padding: 60px 0;
  }

  article {
    background-color: rgba(15, 32, 39, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 60px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  }

  article h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--accent);
    position: relative;
    padding-bottom: 10px;
  }

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

  article h3 {
    font-size: 1.5rem;
    margin: 30px 0 20px;
    color: var(--light);
  }

  article p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
  }

  pre {
    background-color: rgba(32, 58, 67, 0.8);
    border-radius: 8px;
    padding: 20px;
    margin: 25px 0;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    border-left: 4px solid var(--accent);
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
  }

  code {
    color: var(--accent);
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
  }

  .gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
  }

  .gallery-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
  }

  .gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  }

  .gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s;
  }

  .gallery-item:hover img {
    transform: scale(1.05);
  }

  .gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 15px;
    color: white;
    opacity: 0;
    transition: opacity 0.3s;
  }

  .gallery-item:hover .gallery-caption {
    opacity: 1;
  }

  .footer {
    background-color: var(--primary);
    padding: 40px 0;
    text-align: center;
  }

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

  .footer-link {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s;
  }

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

  .footer-text {
    color: var(--gray);
    font-size: 0.9rem;
  }

  @media (max-width: 768px) {
    .hero-title {
      font-size: 2.5rem;
    }
    
    .nav {
      gap: 15px;
    }
    
    article {
      padding: 30px 20px;
    }
    
    .gallery {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 480px) {
    .hero-title {
      font-size: 2rem;
    }
    
    .header-inner {
      flex-direction: column;
      gap: 15px;
    }
    
    .nav {
      flex-wrap: wrap;
      justify-content: center;
    }
  }