:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight: #e94560;
    --text-primary: #f1f1f1;
    --text-secondary: #b8b8b8;
    --gradient-main: linear-gradient(135deg, #0f3460 0%, #16213e 100%);
    --gradient-accent: linear-gradient(45deg, #e94560 0%, #ff7b54 100%);
    --card-bg: rgba(31, 41, 55, 0.8);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', sans-serif;
  }

  body {
    background: var(--gradient-main);
    color: var(--text-primary);
    line-height: 1.6;
    padding: 0;
    margin: 0;
    overflow-x: hidden;
  }

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

  /* Header Styles */
  header {
    background: rgba(22, 33, 62, 0.9);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
  }

  .notice {
    background: var(--highlight);
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    animation: pulse 2s infinite;
  }

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

  /* Main Content */
  main {
    margin-top: 100px;
    padding-bottom: 50px;
  }

  /* Article Styles */
  article {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
  }

  article h2 {
    font-size: 2.2rem;
    margin-bottom: 30px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    padding-bottom: 15px;
  }

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

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

  article p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-secondary);
  }

  /* Code Block Styles */
  pre {
    background: rgba(10, 15, 30, 0.7);
    border-radius: 8px;
    padding: 20px;
    margin: 25px 0;
    overflow: auto;
    border-left: 4px solid var(--highlight);
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
  }

  code {
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    color: #f8f8f2;
  }

  /* Image Gallery */
  .image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 40px 0;
  }

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

  .gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  }

  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
  }

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

  /* Navigation */
  .content-nav {
    position: sticky;
    top: 120px;
    background: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
  }

  .content-nav h3 {
    color: var(--highlight);
    margin-bottom: 15px;
    font-size: 1.2rem;
  }

  .nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .nav-links a {
    display: inline-block;
    padding: 8px 15px;
    background: rgba(15, 52, 96, 0.5);
    color: var(--text-primary);
    border-radius: 5px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
  }

  .nav-links a:hover {
    background: var(--highlight);
    transform: translateY(-2px);
  }

  /* Responsive Design */
  @media (max-width: 768px) {
    .header-content {
      flex-direction: column;
      gap: 15px;
    }

    article {
      padding: 25px;
    }

    article h2 {
      font-size: 1.8rem;
    }

    .image-gallery {
      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
  }

  @media (max-width: 480px) {
    article {
      padding: 20px;
    }

    article h2 {
      font-size: 1.5rem;
    }

    article h3 {
      font-size: 1.3rem;
    }

    .image-gallery {
      grid-template-columns: 1fr;
    }
  }