.speak-btn {
  position: absolute;
  right: 60px;
  bottom: 10px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-color);
  opacity: 0.7;
}

.speak-btn:hover {
  opacity: 1;
}

.speech-status {
  position: fixed;
  bottom: 60px;
  left: 20px;
  background-color: var(--secondary-color);
  padding: 10px;
  border-radius: 5px;
  box-shadow: 0 2px 4px var(--shadow-color);
  z-index: 1000;
}


.ai-message pre {
  /* background: #fff; */
  /* color: #d4d4d4; */
  padding: 10px;
  overflow-x: auto;
  border-radius: 6px;
}

.ai-message code {
  /* background: #eee; */
  padding: 2px 4px;
  border-radius: 4px;
  font-family: monospace;
}



/* 整体消息容器 */
.message {
  margin: 12px 0;
  padding: 12px;
  border-radius: 12px;
  transition: all 0.3s ease;
}

/* 用户与 AI 消息背景不同 */
.user-message {
  color: var(--user-text-color);
  align-self: flex-end;
}

.ai-message {
  background-color: #ffffff;
  color: var(--ai-text-color);
  align-self: flex-start;
}


/* 内容区 */
.content {
  max-width: 80%;
  position: relative;
  word-wrap: break-word;
}

/* footer 容器放置时间戳和按钮 */
.footer-container {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 10px;
  font-size: 0.85em;
  color: #666;
  padding: 10px 0;
}

.footer-container button {
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.3s;
}

.footer-container button:hover {
  background: rgba(0, 0, 0, 0.1);
}

/* Markdown 渲染相关样式 */
.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
  margin: 0.5em 0;
  font-weight: bold;
}

.hljs {
  font-family: Menlo, Monaco, Consolas, monospace;
}

.content p {
  margin: 0.5em 0;
}

/* 代码块容器 */
.code-block-container {
  position: relative;
  margin: 1em 0;
  background-color: var(--secondary-color);
  border-radius: 8px;
  overflow: hidden;
}

.code-block-container pre {
  margin: 0;
  padding: 12px;
  overflow-x: auto;
}

/* 复制按钮在代码块右上角 */
.copy-code-btn {
  position: absolute;
  right: 10px;
  top: 10px;
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9em;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.code-block-container:hover .copy-code-btn {
  display: block;
}

/* 行内代码 */
.content code {
  /* background: #f1f1f1; */
  padding: 2px 4px;
  border-radius: 4px;
  font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
}

/* .footer-container .message-footer-btn {
  width: 100px;
} */

.copy-btn,
.speak-btn {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9em;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.copy-btn:hover,
.speak-btn:hover {
  opacity: 1;
}


/* 增加一个语言切换按钮样式 */
.lang-toggle {
  background: none;
  border: 1px solid var(--border-color);
  padding: 5px 10px;
  cursor: pointer;
  border-radius: 4px;
  font-size: 14px;
}


.input-box::placeholder {
  font-size: 16px;
}

@media (max-width: 600px) {
  .input-box::placeholder {
    font-size: 14px;
    /* 小屏幕缩小 */
  }
}