dialog[open] .dialog-close {
  position: sticky !important;
  top: 10px !important;
  right: 10px !important;
  z-index: 50;
  float: right;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  margin: -2px -2px 8px 12px;
  padding: 0;
  border: 1px solid var(--line) !important;
  border-radius: 50%;
  background: rgba(255, 255, 255, .94) !important;
  color: var(--ink) !important;
  box-shadow: 0 8px 22px rgba(18, 32, 29, .16);
  font: 400 25px/1 Arial, sans-serif;
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

dialog[open] .dialog-close:hover {
  border-color: var(--teal) !important;
  color: var(--teal) !important;
  background: #fff !important;
}

dialog[open] .dialog-close:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

:root[data-theme="dark"] dialog[open] .dialog-close {
  background: rgba(27, 37, 34, .94) !important;
  color: var(--ink) !important;
  border-color: var(--line) !important;
  box-shadow: 0 8px 22px rgba(0, 0, 0, .34);
}

:root[data-theme="dark"] dialog[open] .dialog-close:hover {
  background: #22312d !important;
  color: var(--teal) !important;
}

@media (max-width: 520px) {
  dialog[open] .dialog-close {
    top: 8px !important;
    right: 8px !important;
    width: 42px;
    height: 42px;
    min-width: 42px;
    min-height: 42px;
  }
}

.assistant-send-row > button[aria-label="发送问题"] {
  display: grid;
  place-items: center;
  padding: 0;
}

.assistant-send-row > button[aria-label="发送问题"] img {
  display: block;
  width: 22px;
  height: 22px;
  pointer-events: none;
}