.conversation-container {
      flex: 1;
      display: flex;
      flex-direction: column;
      min-height: 0;
    }
    .messages-container {
      flex: 1;
      overflow-y: auto;
      padding: 20px;
      background: #fafafa;
      min-height: 0;
    }
    .message-wrapper {
      margin-bottom: 20px;
    }
    .message {
      max-width: 95%;
      padding: 12px 16px;
      border-radius: 18px;
      position: relative;
      margin-bottom: 12px;
    }
    .message.user {
      background: linear-gradient(135deg, #007bff, #0056b3);
      color: white;
      border-left: 4px solid #0056b3;
      box-shadow: 0 2px 4px rgba(0, 123, 255, 0.2);
    }
    .message.assistant {
      background: linear-gradient(135deg, #ffffff, #f8f9fa);
      color: #333;
      border: 1px solid #e0e0e0;
      border-left: 4px solid #6c757d;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }
    .message-header {
      display: flex;
      align-items: center;
      margin-bottom: 8px;
      font-size: 12px;
      opacity: 0.8;
    }
    .message-icon {
      font-size: 16px;
      height: 16px;
      width: 16px;
      margin-right: 6px;
    }
    .message-role {
      font-weight: 500;
      margin-right: 8px;
    }
    .message-time {
      margin-left: auto;
    }
    .message-content {
      line-height: 1.5;
      white-space: pre-wrap;
    }
    .user .message-content {
      color: white;
    }
    .loading-spinner {
      position: absolute;
      top: 12px;
      right: 12px;
    }
    .input-container {
      display: flex;
      gap: 12px;
      padding: 16px;
      border-top: 1px solid #e0e0e0;
      background: white;
      flex-shrink: 0;
    }
    .input-field {
      flex: 1;
    }
    .send-button {
      align-self: center;
      height: 56px;
      min-width: 56px;
    }
    .empty-state {
      text-align: center;
      padding: 60px 20px;
      color: #666;
    }
    .empty-state mat-icon {
      font-size: 64px;
      height: 64px;
      width: 64px;
      margin-bottom: 16px;
      color: #ccc;
    }
    .no-session {
      padding: 20px;
      text-align: center;
      color: #666;
      background: #f5f5f5;
    }

    /* 可折叠标签样式 */
    details {
      margin: 8px 0;
      border-radius: 8px;
      overflow: hidden;
    }

    .thinking-details {
      border: 2px solid #2196f3;
      background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(33, 150, 243, 0.2);
    }

    .tool-details {
      border: 2px solid #9c27b0;
      background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 100%);
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(156, 39, 176, 0.2);
    }

    .thinking-summary,
    .tool-summary {
      padding: 8px 12px;
      cursor: pointer;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 6px;
      user-select: none;
    }

    .thinking-summary {
      color: #0d47a1;
      background: linear-gradient(135deg, #bbdefb 0%, #90caf9 100%);
      border-bottom: 1px solid #64b5f6;
      font-weight: 600;
    }

    .tool-summary {
      color: #4a148c;
      background: linear-gradient(135deg, #e1bee7 0%, #ce93d8 100%);
      border-bottom: 1px solid #ba68c8;
      font-weight: 600;
    }

    /* details元素内的内容样式 */
    .thinking-details > *:not(summary),
    .tool-details > *:not(summary) {
      padding: 12px;
      border-top: 1px solid rgba(0, 0, 0, 0.05);
    }

    .thinking-details > *:not(summary) {
      background-color: #f0f7ff;
      color: #0d47a1;
      font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
      font-size: 0.95em;
      line-height: 1.5;
    }

    .tool-details > *:not(summary) {
      background-color: #f5f0ff;
      color: #4a148c;
      font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
      font-size: 0.95em;
      line-height: 1.5;
    }

    /* 标签样式（非折叠） */
    .thinking-tag,
    .tool-tag,
    .error-tag {
      display: inline-block;
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 500;
      margin-right: 8px;
    }

    .thinking-tag {
      background-color: #e3f2fd;
      color: #1565c0;
    }

    .tool-tag {
      background-color: #f3e5f5;
      color: #7b1fa2;
    }

    .error-tag {
      background-color: #ffebee;
      color: #c62828;
    }

    /* 确保markdown内容样式正确 */
    .message-content :deep(*) {
      margin-top: 8px;
      margin-bottom: 8px;
    }

    .message-content :deep(ul),
    .message-content :deep(ol) {
      padding-left: 24px;
    }

    .message-content :deep(code) {
      background-color: #f5f5f5;
      padding: 2px 4px;
      border-radius: 3px;
      font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
      font-size: 0.9em;
    }

    .message-content :deep(pre) {
      margin: 12px 0;
    }

    /* 自定义details元素图标 */
    .message-content :deep(details) {
      position: relative;
    }

    .message-content :deep(details summary) {
      list-style: none;
    }

    .message-content :deep(details summary::-webkit-details-marker) {
      display: none;
    }

    .message-content :deep(details summary::before) {
      content: '▶';
      font-size: 10px;
      margin-right: 6px;
      transition: transform 0.2s;
      display: inline-block;
    }

    .message-content :deep(details[open] summary::before) {
      transform: rotate(90deg);
    }

    /* 确保标签内的内容正确显示 */
    .message-content :deep(.thinking-details),
    .message-content :deep(.tool-details) {
      white-space: normal;
      word-break: break-word;
    }