body {
    font-family:"Lucida Grande",
    "segoe UI",
    "ヒラギノ丸ゴ ProN W4",
    "Hiragino Maru Gothic ProN",
    "メイリオ", Meiryo, Verdana, Arial, sans-serif;}
  
  .chat-container {
    margin: 0 auto;
    color: #fff;
  }
  
  .chat-box {
    display: flex;
    flex-direction: column;
  }
  
  .chat-bubble {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 10px;
  }
  
  .chat-message {
    background-color: #000000;
    padding: 10px 15px;
    border-radius: 15px;
    font-size: 14px;
    line-height: 1.3;
    max-width: 80%;
  }
  
  .chat-message-judge {
    background-color: #000000;
    padding: 10px 15px;
    border-radius: 15px;
    font-size: 16px;
    line-height: 1.5;
    max-width: 80%;
  }
  
  .chat-message-ng {
    background-color: #000000;
    padding: 10px 15px;
    border-radius: 15px;
    font-size: 16px;
    line-height: 1.5;
    max-width: 80%;
  }
  
  .chat-message > p {
    font-weight: bold;
  }
  
  .chat-bubble:last-child .chat-message {
    background-color: #c3f69d;
    color: #000;
  }
  
  .chat-bubble:last-child .chat-message-judge {
    background-color: #ffffff;
    color: #000;
  }
  
  .chat-bubble:last-child .chat-message-ng {
    background-color: #e092c0;
    color: #000;
  }
  
  html {
    background-image: url("./bg.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
  }
  
  /* 右上に固定するためのCSS */
  .fixed-text {
    position: fixed;
    top: 0;
    right: 0;
    font-size: 12px;
    padding: 5px;
    color: #fff;
    text-align:right;
  }
  /* 最下部に固定するためのCSS */
  .fixed-bottom {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    background-color: #ffffff;
    padding: 10px;
    box-sizing: border-box;
  }
  /* LINE風のテキスト入力欄 */
  .input-group {
    display: flex;
    align-items: center;
    width: 100%;
    margin-bottom: 10px;
  }
  .line-input {
    display: flex;
    align-items: center;
    background-color: #f2f2f2;
    border: none;
    border-radius: 20px;
    height: 40px;
    padding: 0 10px;
    font-size: 16px;
    outline: none;
    width: 100%;
  }
  /* LINE風のボタン */
  .line-btn {
    background-color: #00c300;
    border: none;
    border-radius: 20px;
    color: #ffffff;
    font-size: 16px;
    padding: 8px 20px;
    outline: none;
    cursor: pointer;
    white-space: nowrap;
  }