body {
      font-family: 'Comic Sans MS', Arial, sans-serif;
      background: linear-gradient(45deg, #ffeb3b, #ff4081);
      color: #333;
      padding: 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
      min-height: 100vh;
    }
    .container {
      background: rgba(255, 255, 255, 0.9);
      padding: 20px;
      border-radius: 15px;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
      max-width: 600px;
      width: 100%;
    }
    input[type="text"] {
      padding: 10px;
      font-size: 16px;
      border: 2px solid #ff4081;
      border-radius: 5px;
      width: 100%;
      margin-bottom: 20px;
      box-sizing: border-box;
    }
    p {
      font-size: 18px;
      line-height: 1.6;
      color: #333;
    }
    strong {
      color: #d81b60;
      font-weight: bold;
    }
    .asterisk-line {
      color: #388e3c;
      display: block;
      padding-left: 10px;
      border-left: 3px solid #4caf50;
    }
    .bracket-group {
      position: relative;
      color: #0288d1;
      cursor: pointer;
    }
    .bracket-popup {
      display: none;
      position: absolute;
      background: #fff;
      border: 2px solid #0288d1;
      border-radius: 5px;
      padding: 10px;
      color: #0288d1;
      top: 100%;
      left: 0;
      z-index: 10;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }
    .bracket-group:hover .bracket-popup {
      display: block;
    }
    .curly-group {
      position: relative;
      color: #7b1fa2;
      cursor: pointer;
    }
    .curly-popup {
      display: none;
      position: absolute;
      background: #fff;
      border: 2px solid #7b1fa2;
      border-radius: 5px;
      padding: 10px;
      color: #7b1fa2;
      top: 100%;
      left: 0;
      z-index: 10;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }
    .curly-group:hover .curly-popup {
      display: block;
    }
    .underline {
      text-decoration: underline;
      text-decoration-color: #f57c00;
      color: #f57c00;
    }
    .highlight {
      background: #ffeb3b;
      color: #d81b60;
      padding: 2px 5px;
      border-radius: 3px;
    }