:root {
    --primary-bg: linear-gradient(135deg, #0e0e0e 0%, #1a1a1a 100%);
    --secondary-bg: #1e1e1e;
    --accent: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
    --text: #ffffff;
    --highlight: #2575fc;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  }

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

  body {
    background: var(--primary-bg);
    color: var(--text);
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    min-height: 100%;
    overflow-x: hidden;
  }

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

  .header {
    position: relative;
    padding: 2rem 0;
    text-align: center;
    background: rgba(30, 30, 30, 0.8);
    backdrop-filter: blur(10px);
    margin-bottom: 3rem;
    border-bottom: 1px solid rgba(106, 17, 203, 0.3);
  }

  .header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: var(--accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 10px rgba(106, 17, 203, 0.5);
  }

  .header p {
    color: rgba(255, 255, 255, 0.7);
    max-width: 800px;
    margin: 0 auto;
  }

  .notice {
    background: rgba(37, 117, 252, 0.1);
    border-left: 4px solid var(--highlight);
    padding: 1rem;
    margin: 2rem 0;
    border-radius: 0 4px 4px 0;
  }

  article {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
  }

  section {
    background: var(--secondary-bg);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  section:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7);
  }

  section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent);
  }

  h2, h3 {
    margin-bottom: 1.5rem;
    position: relative;
  }

  h2 {
    font-size: 1.8rem;
    color: #fff;
  }

  h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent);
    margin-top: 0.5rem;
  }

  h3 {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.9);
  }

  p {
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.8);
  }

  pre {
    background: #121212;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    overflow: auto;
    border-left: 4px solid var(--highlight);
  }

  code {
    font-family: 'Courier New', monospace;
    color: #f8f8f2;
  }

  .language-css {
    display: block;
    white-space: pre;
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
  }

  .image-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
  }

  .image-card:hover {
    transform: scale(1.03);
  }

  .image-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
  }

  .image-card:hover img {
    transform: scale(1.1);
  }

  table {
    width: 100%;
    border-collapse: collapse;
    background: #1a1a1a;
    color: #ffffff;
    margin: 2rem 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
  }

  th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #333;
  }

  th {
    background: var(--highlight);
    color: #fff;
  }

  .increase {
    color: #4caf50;
  }

  .decrease {
    color: #f44336;
  }

  tr:hover {
    background: #2a2a2a;
  }

  .footer {
    text-align: center;
    padding: 2rem 0;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    border-top: 1px solid rgba(106, 17, 203, 0.3);
  }

  @media (max-width: 768px) {
    .header h1 {
      font-size: 2rem;
    }
    
    section {
      padding: 1.5rem;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
  }

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

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

  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
  }

  .pulsing {
    animation: pulse 2s ease-in-out infinite;
  }