:root {
    --primary: linear-gradient(135deg, #4569E3, #8E5EF7);
    --secondary: rgba(255, 255, 255, 0.15);
    --accent: #FFB700;
    --text: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.2);
  }

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

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

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
  }

  .header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
  }

  .header::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: var(--accent);
    margin: 20px auto;
    border-radius: 2px;
  }

  .notice {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(0,0,0,0.7);
    padding: 10px 15px;
    border-radius: 5px;
    z-index: 100;
    font-size: 14px;
    backdrop-filter: blur(5px);
  }

  .article-container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
  }

  article {
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  }

  article h2 {
    font-size: 28px;
    margin-bottom: 25px;
    color: var(--accent);
    position: relative;
    padding-bottom: 10px;
  }

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent);
  }

  article h3 {
    font-size: 22px;
    margin: 30px 0 15px;
    color: #fff;
  }

  article p {
    margin-bottom: 20px;
    font-size: 17px;
  }

  pre {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    padding: 20px;
    margin: 25px 0;
    overflow: auto;
    font-family: 'Courier New', monospace;
    font-size: 15px;
    line-height: 1.5;
    border-left: 3px solid var(--accent);
  }

  code {
    color: #FFD700;
  }

  .sidebar {
    position: sticky;
    top: 40px;
    height: fit-content;
  }

  .nav-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }

  .nav-title {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--accent);
  }

  .nav-links {
    list-style: none;
  }

  .nav-links li {
    margin-bottom: 10px;
  }

  .nav-links a {
    color: var(--text);
    text-decoration: none;
    display: block;
    padding: 8px 0;
    position: relative;
    transition: all 0.3s ease;
  }

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

  .nav-links a:hover {
    color: var(--accent);
    padding-left: 10px;
  }

  .nav-links a:hover::before {
    width: 20px;
  }

  .gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
  }

  .gallery img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .gallery img:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  }

  @media (max-width: 900px) {
    .article-container {
      grid-template-columns: 1fr;
    }
    
    .sidebar {
      position: static;
      margin-top: 40px;
    }
  }

  @media (max-width: 600px) {
    article {
      padding: 25px;
    }
    
    .gallery {
      grid-template-columns: 1fr;
    }
  }

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

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

  .highlight {
    background: rgba(255, 183, 0, 0.2);
    padding: 2px 5px;
    border-radius: 3px;
  }