:root {
    --primary: #1e1e2f;
    --secondary: #2c2c3e;
    --accent: #6e45e2;
    --highlight: #00d4ff;
    --text: #e0e0e0;
    --text-secondary: #b0b0b0;
    --card-bg: rgba(44, 44, 62, 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: 'Montserrat', 'Segoe UI', sans-serif;
  }

  body {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--text);
    line-height: 1.6;
    min-height: 100%;
    padding-top: 80px;
    overflow-x: hidden;
  }

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

  .header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(30, 30, 47, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(110, 69, 226, 0.2);
  }

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

  .logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--highlight), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 10px rgba(110, 69, 226, 0.3);
  }

  .notice {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(30, 30, 47, 0.9);
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    border-left: 4px solid var(--highlight);
    z-index: 100;
    animation: fadeIn 0.5s ease-out;
  }

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

  .main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px 0;
  }

  article {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(110, 69, 226, 0.1);
  }

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

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--highlight), var(--accent));
    border-radius: 3px;
  }

  article h3 {
    font-size: 1.5rem;
    margin: 25px 0 15px;
    color: var(--highlight);
  }

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

  pre {
    background: rgba(20, 20, 35, 0.7);
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    overflow: auto;
    border-left: 4px solid var(--accent);
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.5;
    color: #f8f8f2;
    position: relative;
  }

  pre::before {
    content: 'CSS';
    position: absolute;
    top: 0;
    right: 0;
    background: var(--accent);
    color: white;
    padding: 2px 8px;
    font-size: 0.8rem;
    border-radius: 0 0 0 4px;
  }

  code {
    font-family: 'Courier New', monospace;
    background: rgba(110, 69, 226, 0.2);
    padding: 2px 6px;
    border-radius: 4px;
    color: #f8f8f2;
    font-size: 0.9rem;
  }

  .gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 30px 0;
  }

  .gallery img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(110, 69, 226, 0.3);
  }

  .gallery img:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  }

  .card-highlight {
    background: linear-gradient(135deg, rgba(110, 69, 226, 0.1), rgba(0, 212, 255, 0.1));
    border-radius: 12px;
    padding: 25px;
    margin: 30px 0;
    border: 1px solid rgba(110, 69, 226, 0.2);
    position: relative;
    overflow: hidden;
  }

  .card-highlight::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--highlight), var(--accent));
  }

  .nav-links {
    display: flex;
    gap: 25px;
  }

  .nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
  }

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

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

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

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

    .nav-links {
      gap: 15px;
    }

    article {
      padding: 25px;
    }

    article h2 {
      font-size: 1.8rem;
    }

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

  @media (max-width: 480px) {
    .container {
      padding: 0 15px;
    }

    article {
      padding: 20px;
    }

    article h2 {
      font-size: 1.5rem;
    }

    article h3 {
      font-size: 1.3rem;
    }

    pre {
      padding: 15px;
      font-size: 0.85rem;
    }
  }