.field-hint {
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  margin-top: -2px;
}

main { min-width: 0; overflow-x: hidden; }

.ai-actions {
  align-items: center;
  display: flex;
  gap: 18px;
  margin-top: 20px;
}

.clear-key {
  align-items: center;
  color: var(--muted);
  flex-direction: row;
  font-weight: 500;
  margin: 0;
}

.clear-key input {
  width: auto;
}

.divider {
  border-top: 1px solid var(--line);
  margin: 25px 0 5px;
}

.form-grid h3 {
  font-size: 16px;
  margin: 0;
}

.card-head .status {
  white-space: nowrap;
}

.integration-banner {
  align-items: center;
  background: linear-gradient(135deg, #f0eeff, #eef9ff);
  border: 1px solid #ddd9ff;
  border-radius: 16px;
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
  padding: 18px 22px;
}

.integration-banner p {
  color: var(--muted);
  font-size: 12px;
  margin: 6px 0 0;
}

.button-link {
  display: inline-block;
  text-decoration: none;
  white-space: nowrap;
}

.settings-submit {
  margin: 10px 0 28px;
}

.settings-stack { display: grid; gap: 16px; max-width: 850px; }
.settings-stack .settings-card { max-width: none; }
.knowledge-actions { display: flex; flex-wrap: wrap; gap: 7px; justify-content: flex-end; }
.primary.small-btn { background: linear-gradient(135deg, var(--brand2), var(--brand)); border-color: transparent; color: #fff; }
.learning-control { margin-bottom: 16px; max-width: 850px; }
.learning-control .switch-row { margin: 0; }

.overview-control,
.keyword-control {
  align-items: center;
  display: flex;
  gap: 18px;
  margin-bottom: 16px;
  padding: 15px 20px;
}

.overview-control .switch-row,
.keyword-control .switch-row,
.toolbar-label { margin: 0; }

.overview-control p,
.keyword-control p {
  color: var(--muted);
  font-size: 12px;
  margin: 0;
}

.toolbar-label {
  align-items: center;
  flex-direction: row;
  white-space: nowrap;
}

.toolbar-label select { min-width: 190px; }

.keyword-switch-wrap {
  align-items: center;
  display: flex;
  flex: 0 0 auto;
  gap: 7px;
  min-width: 88px;
}

.keyword-switch-wrap > span {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.keyword-switch {
  background: #cbd0dc;
  border: 0;
  border-radius: 99px;
  height: 23px;
  padding: 0;
  position: relative;
  transition: background .2s;
  width: 40px;
}

.keyword-switch::after {
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(20, 33, 61, .2);
  content: "";
  height: 17px;
  left: 3px;
  position: absolute;
  top: 3px;
  transition: left .2s;
  width: 17px;
}

.keyword-switch.is-on { background: var(--brand); }
.keyword-switch.is-on::after { left: 20px; }
.keyword-switch:focus-visible { box-shadow: 0 0 0 3px rgba(88, 70, 232, .18); outline: none; }
.learning-card .source-question { -webkit-line-clamp: 3; }
.learning-meta { color: var(--muted); font-size: 11px; margin-top: 10px; }
.avatar-setting { align-items: center; display: flex; gap: 16px; margin-top: 18px; }
.avatar-preview { background: #f1f2f6; border: 1px solid var(--line); border-radius: 50%; height: 64px; object-fit: cover; width: 64px; }
.avatar-upload { flex: 1; margin: 0; }
.source-form { margin-bottom: 16px; max-width: none; }
.source-row .source { display: block; margin-top: 5px; }
.source-error { color: var(--red) !important; white-space: normal !important; }
.knowledge-toolbar { display: grid; grid-template-columns: 180px minmax(220px, 420px); gap: 10px; margin-bottom: 16px; }
.knowledge-toolbar input,.knowledge-toolbar select { background: #fff; }
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 18px; }
.pagination button.active { background: var(--brand); color: #fff; }
.file-list { display: grid; gap: 7px; margin-top: 16px; max-height: 55vh; overflow: auto; }
.file-row { background: #f6f7fb; border-radius: 9px; font-size: 12px; padding: 10px 12px; word-break: break-all; }
#conversations,#conversation-list,#conversation-list .list-row,#conversation-list .list-main { min-width: 0; max-width: 100%; }
#conversation-list .list-main p { display: -webkit-box; overflow: hidden; overflow-wrap: anywhere; white-space: normal; word-break: break-word; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
#conversation-list .source { display: block; max-width: 100%; overflow: hidden; overflow-wrap: anywhere; text-overflow: ellipsis; }
.conversation-dialog { width: min(760px, calc(100% - 30px)); }
.conversation-history { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; max-height: 65vh; overflow: auto; padding: 4px; }
.history-message { align-self: flex-end; background: #f1f2f6; border-radius: 14px 4px 14px 14px; max-width: 82%; padding: 11px 14px; }
.history-message.customer { align-self: flex-start; background: #eeecff; border-radius: 4px 14px 14px; }
.history-message.human { background: #e8f8f1; }
.history-meta { align-items: center; display: flex; gap: 12px; margin-bottom: 6px; }
.history-meta strong { font-size: 11px; }
.history-meta time { color: var(--muted); font-size: 10px; }
.history-content { font-size: 13px; line-height: 1.65; overflow-wrap: anywhere; white-space: pre-wrap; word-break: break-word; }

@media (max-width: 560px) {
  .ai-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .integration-banner {
    align-items: flex-start;
    flex-direction: column;
    gap: 15px;
  }
}