body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f8f8f8;
}

header {
  background-color: #ffffff;
  color: #000000;
  padding: 6px 0;
  text-align: center;
  box-shadow: 0 3px 7px rgba(0, 0, 0, 0.1);
}

.container {
  max-width: 1200px;
  margin: 20px auto;
  padding: 10px;
  border-radius: 10px;
  background-color: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.input-output-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media screen and (min-width: 768px) {
  .input-output-container {
    flex-direction: row;
    align-items: stretch;
  }
  
  #inputText, #outputText {
    flex: 1;
  }
  
  #inputText {
    margin-right: 10px;
  }
  
  #outputText {
    margin-left: 10px;
  }
}

#inputText, #outputText {
  min-height: 150px;
  resize: none;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 12px;
  font-size: 16px;
  color: #333;
  background-color: #fff;
  width: 100%;
  box-sizing: border-box;
  white-space: pre-wrap; /* 文字自动换行 */
  overflow-y: auto; /* 添加滚动条以支持高度自适应 */
  outline: none; /* 去除点击后的边框效果 */
  caret-color: #333; /* 光标颜色 */
}

.result {
  background-color: #f0f0f0;
  padding: 20px;
  border-radius: 10px;
  word-wrap: break-word;
  color: #333;
  font-size: 14px;
  line-height: 1.1;
  white-space: pre-wrap; /* 文字自动换行 */
  overflow-y: auto; /* 添加滚动条以支持高度自适应 */
  border-bottom: 3px solid #ddd; /* 输出框底部浅灰色边框 */
}

.toast {
  background-color: rgba(76, 175, 80, 0.9);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  z-index: 999;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: none;
}