.chat-input-h5-container {
  padding: 8px 12px calc(12px + env(safe-area-inset-bottom));
  background: var(--color-bg);
  width: 100%;
  z-index: 100;
  position: sticky;
  bottom: 0;
}

.chat-input-h5-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.chat-input-h5-attachment-tag {
  border-radius: 6px;
  padding: 4px 8px;
}

.chat-input-h5-image-item {
  position: relative;
}

.chat-input-h5-image {
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.chat-input-h5-image-close {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-input-h5-image-close .anticon {
  font-size: 8px;
}

.chat-input-h5-toolbar {
  margin-bottom: 8px;
  overflow: hidden;
  position: relative;
}

.chat-input-h5-toolbar-scroll {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding: 0 4px 4px;
  scrollbar-width: none; /* Firefox */
}

.chat-input-h5-toolbar-scroll::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.chat-input-h5-model-select {
  flex: 0 0 auto;
  min-width: 100px;
  max-width: 150px;
}

.chat-input-h5-toolbar-divider {
  width: 1px;
  height: 14px;
  background: var(--color-border);
  flex: 0 0 auto;
  margin: 0 4px;
}

.chat-input-h5-action-icon {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 8px !important;
  color: var(--color-text-secondary) !important;
  font-size: 13px !important;
}

.chat-input-h5-action-icon .anticon {
  font-size: 16px;
}

.chat-input-h5-action-icon:disabled {
  opacity: 0.5;
}

.chat-input-h5-main {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-surface);
  border-radius: 24px;
  padding: 6px 12px 6px 18px;
  border: 1px solid var(--color-border);
  box-shadow: 0px 4px 20px 0px #7DB8FF4A;
}

.chat-input-h5-upload-btn {
  padding: 4px;
  height: auto;
}

.chat-input-h5-upload-btn .anticon {
  font-size: 20px;
  color: var(--color-text-secondary);
}

.chat-input-h5-textarea {
  padding: 4px 0 !important;
  font-size: 16px !important;
}

.chat-main .chat-input-h5-textarea:focus {
  outline: none !important;
  box-shadow: none !important;
}

.chat-input-h5-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.chat-input-h5-tool-btn {
  padding: 4px;
  height: auto;
}

.chat-input-h5-tool-btn .anticon {
  font-size: 20px;
  color: var(--color-text-secondary);
}

.chat-input-h5-main .ant-btn-variant-solid:disabled {
  border: 0;
}

/* 提及选择器样式 */
.chat-input-h5-mention-popover {
  position: fixed;
  z-index: 10000;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  max-height: 200px;
  overflow-y: auto;
  min-width: 150px;
}

.chat-input-h5-mention-empty {
  padding: 8px;
  color: var(--color-text-tertiary);
}

.chat-input-h5-mention-item {
  padding: 6px 10px;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
}

.chat-input-h5-mention-item:last-child {
  border-bottom: none;
}

.chat-input-h5-mention-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}