:root {
            --primary: #7209b7;
            --secondary: #560bad;
            --light: #f8f9fa;
            --dark: #212529;
            --success: #4895ef;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
        }
        
        .main-container {
            background-color: #f5f3ff;
            color: var(--dark);
            line-height: 1.6;
            padding: 2rem;
            min-height: 100vh;
            width: 100%;
        }
        
        .container {
            width: 100%;
            margin: 0 auto;
            padding: 2.5rem;
            background: white;
            border-radius: 16px;
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
        }
        
        h1 {
            color: var(--primary);
            margin-bottom: 1rem;
            font-weight: 800;
            text-align: center;
            font-size: 2.2rem;
            background: linear-gradient(90deg, #7209b7, #4361ee);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .description {
            text-align: center;
            margin-bottom: 2.5rem;
            color: #555;
            font-size: 1.1rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .input-section {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        
        .text-areas {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        
        @media (max-width: 768px) {
            .text-areas {
                grid-template-columns: 1fr;
            }
        }
        
        .input-group {
            display: flex;
            flex-direction: column;
        }
        
        .input-group label {
            margin-bottom: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.95rem;
        }
        
        textarea {
            width: 100%;
            min-height: 250px;
            padding: 1rem;
            border: 2px solid #e9ecef;
            border-radius: 10px;
            resize: vertical;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            line-height: 1.5;
        }
        
        textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(114, 9, 183, 0.1);
        }
        
        .controls {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin-bottom: 2rem;
        }
        
        @media (max-width: 600px) {
            .controls {
                grid-template-columns: 1fr;
            }
        }
        
        .control-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        
        .control-group label {
            font-weight: 600;
            color: #495057;
            font-size: 0.9rem;
        }
        
        .control-group input {
            padding: 0.8rem 1rem;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }
        
        .control-group input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(114, 9, 183, 0.1);
        }
        
        .buttons {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-top: 1rem;
            flex-wrap: wrap;
        }
        
        button {
            padding: 0.9rem 1.8rem;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        
        .btn-primary {
            background-color: var(--primary);
            color: white;
        }
        
        .btn-primary:hover {
            background-color: var(--secondary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(114, 9, 183, 0.2);
        }
        
        .btn-secondary {
            background-color: #e9ecef;
            color: #495057;
        }
        
        .btn-secondary:hover {
            background-color: #dee2e6;
            transform: translateY(-2px);
        }
        
        .btn-icon {
            width: 18px;
            height: 18px;
        }
        
        .result-container {
            margin-top: 2rem;
        }
        
        .result-container label {
            display: block;
            margin-bottom: 0.75rem;
            font-weight: 600;
            color: var(--primary);
        }
        
        .credits {
            text-align: center;
            margin-top: 3rem;
            color: #6c757d;
            font-size: 0.85rem;
        }
        
        .badge {
            display: inline-block;
            padding: 0.35rem 0.65rem;
            background-color: #f8f9fa;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #495057;
            margin-left: 0.5rem;
            vertical-align: middle;
        }

        .seo-section {
    background: #f9fafb;
    padding: 3rem 0;
    margin-top: 3rem;
    border-top: 1px solid #e5e7eb;
    border-bottom: 1px solid #e5e7eb;
  }
  
   .container-seo {
            width: 100%;
            margin: 0 auto;
            padding: 2.5rem;
            background: white;
            border-radius: 16px;
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
        }
        
  .seo-section h2 {
    text-align: center;
    margin-bottom: 2.5rem;
    color: #1f2937;
    font-size: 1.8rem;
  }
  .seo-content {
    width: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
  }
  .seo-card {
    margin-bottom: 2.5rem;
  }
  .seo-card h3 {
    color: #4338ca;
    margin-bottom: 1.2rem;
    font-size: 1.3rem;
    text-align:center;
  }
  .benefits-grid {
    display: grid;
    
    gap: 1.5rem;
  }
  .benefit-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  }
  .use-cases {
    display: grid;
    
    gap: 1.5rem;
  }
  .case {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid #6366f1;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  }


 /* ===== ARTICLE SPECIFIC STYLES - NO BODY STYLES ===== */
 #prefix-guide-article {
      width: 95%;
      margin: 0 auto;
      padding: 2rem 1.5rem 3rem 1.5rem;
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    }

    /* Hero Section */
    .prefix-guide-hero {
      text-align: center;
      margin-bottom: 2.5rem;
      padding: 2rem 1.5rem;
      background: linear-gradient(135deg, #7209b7 0%, #4361ee 100%);
      border-radius: 32px;
      box-shadow: 0 12px 30px rgba(114, 9, 183, 0.3);
    }

    .prefix-guide-hero h2 {
      font-size: 2.6rem;
      font-weight: 800;
      color: white;
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
      font-family: 'Playfair Display', serif;
    }

    .prefix-guide-hero .prefix-hero-sub {
      font-size: 1.2rem;
      color: rgba(255, 255, 255, 0.9);
      max-width: 720px;
      margin: 0 auto;
      line-height: 1.5;
    }

    .prefix-guide-meta {
      display: flex;
      justify-content: center;
      gap: 2rem;
      color: rgba(255, 255, 255, 0.8);
      font-weight: 500;
      margin-top: 1.2rem;
      flex-wrap: wrap;
    }

    .prefix-guide-meta span i {
      margin-right: 0.5rem;
    }

    /* Main Content */
    .prefix-main-content {
      background: white;
      border-radius: 28px;
      padding: 2rem 2rem 2.5rem 2rem;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
      border: 1px solid rgba(114, 9, 183, 0.15);
    }

    .prefix-main-content h2 {
      font-size: 1.8rem;
      font-weight: 700;
      margin-top: 2rem;
      margin-bottom: 1rem;
      color: #7209b7;
      border-left: 5px solid #4361ee;
      padding-left: 1rem;
      font-family: 'Playfair Display', serif;
    }

    .prefix-main-content h2:first-of-type {
      margin-top: 0;
    }

    .prefix-main-content h3 {
      font-size: 1.35rem;
      font-weight: 600;
      margin: 1.5rem 0 0.75rem 0;
      color: #4361ee;
    }

    .prefix-main-content p {
      font-size: 1.05rem;
      color: #2d3748;
      margin-bottom: 1.2rem;
      line-height: 1.6;
    }

    .prefix-main-content ul, .prefix-main-content ol {
      margin: 1rem 0 1.2rem 1.8rem;
      color: #2d3748;
      line-height: 1.6;
    }

    .prefix-main-content li {
      margin-bottom: 0.5rem;
    }

    .prefix-highlight-box {
      background: linear-gradient(135deg, rgba(114, 9, 183, 0.08), rgba(67, 97, 238, 0.05));
      border-left: 6px solid #4361ee;
      padding: 1.25rem 1.5rem;
      border-radius: 20px;
      margin: 1.75rem 0;
    }

    .prefix-pro-tip {
      background: rgba(114, 9, 183, 0.1);
      border-radius: 20px;
      padding: 1.2rem 1.5rem;
      margin: 1.5rem 0;
      display: flex;
      gap: 1rem;
      align-items: flex-start;
      border: 1px solid rgba(67, 97, 238, 0.3);
    }

    .prefix-pro-tip i {
      font-size: 1.8rem;
      color: #7209b7;
    }

    .prefix-stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1.2rem;
      margin: 2rem 0;
    }

    .prefix-stat-card {
      background: #f5f7fa;
      border-radius: 20px;
      padding: 1.2rem;
      text-align: center;
      transition: all 0.2s;
      border: 1px solid rgba(114, 9, 183, 0.2);
    }

    .prefix-stat-card .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: #7209b7;
      margin-bottom: 0.25rem;
    }

    .prefix-quote-block {
      background: #f5f7fa;
      padding: 1.5rem;
      border-radius: 24px;
      text-align: center;
      font-style: italic;
      margin: 1.5rem 0;
      border: 1px solid rgba(114, 9, 183, 0.2);
    }

    .prefix-quote-block i {
      font-size: 2rem;
      color: #4361ee;
      margin-bottom: 0.5rem;
      display: inline-block;
    }

    .prefix-table-wrapper {
      overflow-x: auto;
      margin: 1.5rem 0;
    }

    .prefix-examples-table {
      width: 100%;
      border-collapse: collapse;
      background: #f5f7fa;
      border-radius: 16px;
      overflow: hidden;
    }

    .prefix-examples-table th, .prefix-examples-table td {
      padding: 12px 16px;
      text-align: left;
      border-bottom: 1px solid rgba(114, 9, 183, 0.2);
    }

    .prefix-examples-table th {
      background: rgba(114, 9, 183, 0.1);
      font-weight: 600;
      color: #7209b7;
    }

    .prefix-examples-table tr:hover {
      background: rgba(67, 97, 238, 0.05);
    }

    .prefix-applications-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.2rem;
      margin: 1.5rem 0;
    }

    .prefix-application-card {
      background: #f5f7fa;
      border-radius: 16px;
      padding: 1.2rem;
      border: 1px solid rgba(114, 9, 183, 0.2);
      transition: all 0.2s;
    }

    .prefix-application-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(114, 9, 183, 0.1);
    }

    .prefix-application-title {
      font-weight: 700;
      color: #7209b7;
      margin-bottom: 0.5rem;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .prefix-footer-note {
      margin-top: 2.5rem;
      text-align: center;
      font-size: 0.85rem;
      color: #718096;
      border-top: 1px solid #e2e8f0;
      padding-top: 2rem;
    }

    @media (max-width: 768px) {
      .prefix-guide-hero h2 {
        font-size: 2rem;
      }
      .prefix-main-content {
        padding: 1.5rem;
      }
      #prefix-guide-article {
        padding: 1rem;
      }
    }