@media (max-width: 640px) {
  .cf-assistant-root {
    right: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    top: auto !important;
    gap: 0;
    align-items: stretch;
  }

  .cf-assistant-dock {
    position: fixed;
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0));
    z-index: 12055;
  }

  /* 关闭后的小圆点入口独立定位，不依赖 root 布局 */
  .cf-assistant-restore {
    position: fixed;
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0));
    z-index: 12055;
  }

  .cf-assistant-launcher {
    height: 42px;
    padding: 0 14px 0 7px;
    gap: 8px;
  }

  .cf-assistant-launcher-icon {
    width: 28px;
    height: 28px;
  }

  .cf-assistant-launcher-label {
    font-size: 13px;
  }

  .cf-assistant-panel.cf-assistant-panel--open {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100% !important;
    max-width: none;
    height: min(88vh, 760px) !important;
    max-height: 88vh;
    border-radius: 14px 14px 0 0;
    z-index: 12060;
  }

  /* 移动端为全宽抽屉，隐藏 resize 抓手 */
  .cf-assistant-resize-handle {
    display: none;
  }

  .cf-assistant-messages,
  .cf-assistant-message-scroll {
    padding-left: var(--assistant-pad-x, 12px);
    padding-right: var(--assistant-pad-x, 12px);
  }

  .cf-assistant-conversation-hint,
  .cf-assistant-hint {
    margin-left: 0;
    margin-right: 0;
    padding-left: var(--assistant-pad-x, 12px);
    padding-right: var(--assistant-pad-x, 12px);
  }

  .cf-assistant-composer {
    padding-bottom: 8px;
  }

  .cf-assistant-footer,
  .cf-assistant-statusbar {
    padding-bottom: calc(8px + env(safe-area-inset-bottom, 0));
  }
}

@media (max-width: 1299px) and (min-width: 641px) {
  .cf-assistant-root {
    right: 16px;
    bottom: 16px;
    gap: 12px;
  }
}