/* Keep the conversation dominant; composer options open only when needed. */
.assistant-widget .assistant-panel { position: fixed; top: 16px; right: 16px; bottom: auto; left: auto; width: min(600px, calc(100vw - 32px)); height: calc(100dvh - 32px); grid-template-rows: auto minmax(0, 1fr) auto; transition: opacity .18s var(--ease), transform .18s var(--ease); }
.assistant-widget.open > .assistant-launcher { visibility: hidden; }
.assistant-widget.chat-expanded .assistant-panel { left: max(16px, calc((100% - 960px) / 2)); right: max(16px, calc((100% - 960px) / 2)); width: auto; }
.assistant-widget .assistant-expand-toggle { width: 38px; height: 38px; flex: 0 0 38px; padding: 8px; border: 1px solid #ffffff38; border-radius: 5px; background: transparent; color: white; cursor: pointer; }
.assistant-expand-toggle svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.assistant-widget .assistant-expand-toggle:hover { background: #ffffff18; }
.assistant-widget .assistant-expand-toggle:focus-visible { outline: 2px solid white; outline-offset: 2px; }
.assistant-widget.chat-expanded .assistant-message { max-width: min(94%, 75ch); }
.assistant-widget .assistant-messages { min-height: 0; padding: 20px; }
.assistant-widget .assistant-form { display: flex !important; flex-direction: column; gap: 0 !important; padding: 10px 14px 12px !important; box-shadow: none; }
.assistant-widget .assistant-question-hint[hidden], .assistant-widget select[name="response_mode"][hidden], .assistant-widget .assistant-image-status:empty { display: none !important; }
.assistant-widget .assistant-send-row { display: flex !important; flex-direction: column; align-items: stretch; gap: 4px !important; width: 100%; }
.assistant-widget .assistant-send-row textarea[name="message"] { height: 44px; min-height: 44px; max-height: 116px; margin: 0; padding: 10px 4px; border: 0; border-radius: 0; resize: none; font-size: 16px; line-height: 24px; background: transparent; }
.assistant-widget .assistant-send-row textarea[name="message"]:focus { outline: none; }
.assistant-widget .assistant-send-row:focus-within { border-radius: 6px; outline: 2px solid color-mix(in srgb, var(--teal) 32%, transparent); outline-offset: 4px; }
.assistant-compose-tools { display: flex; align-items: center; gap: 4px; min-width: 0; }
.assistant-widget .assistant-response-choice, .assistant-widget .assistant-prompt-guides { margin: 0; padding: 0; display: block; flex: 0 0 auto; overflow: visible; }
.assistant-widget .assistant-compose-tools button, .assistant-widget .assistant-compose-tools .assistant-image-pick { min-height: 44px; height: 44px; border: 0; border-radius: 6px; background: transparent; color: var(--ink); font: inherit; font-size: 13px; font-weight: 500; cursor: pointer; }
.assistant-widget .assistant-compose-tools .assistant-image-pick { width: 36px; min-width: 36px; border-radius: 6px; }
.assistant-widget .assistant-compose-tools .assistant-image-pick svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.assistant-widget .assistant-mode-trigger { display: flex; align-items: center; gap: 4px; padding: 0 8px; white-space: nowrap; }
.assistant-mode-trigger svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.assistant-widget .assistant-template-trigger { padding: 0 8px; white-space: nowrap; color: var(--soft); }
.assistant-widget .assistant-compose-tools .assistant-quota { flex: 1 1 auto; min-width: 0; min-height: 0; padding: 0 6px; border: 0; background: transparent; color: var(--soft); font-size: 11px; line-height: 1.4; text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.assistant-widget .assistant-compose-tools [aria-label="发送问题"] { flex: 0 0 40px; width: 40px; height: 40px; min-height: 40px; margin-left: 4px; display: grid; place-items: center; background: var(--teal); color: white; }
.assistant-widget .assistant-compose-tools [aria-label="发送问题"] img { width: 20px; height: 20px; }
.assistant-widget .assistant-compose-tools button:hover:not(:disabled), .assistant-widget .assistant-compose-tools .assistant-image-pick:hover { background: color-mix(in srgb, var(--teal) 8%, var(--card, white)); }
.assistant-widget .assistant-compose-tools [aria-label="发送问题"]:hover:not(:disabled) { background: color-mix(in srgb, var(--teal) 85%, black); }
.assistant-widget .assistant-compose-tools button:disabled { opacity: .5; cursor: wait; }
.assistant-widget .assistant-compose-tools .assistant-image-pick:has(input:disabled) { opacity: .5; cursor: not-allowed; }
.assistant-widget .assistant-compose-tools button:focus-visible, .assistant-widget .assistant-feedback button:focus-visible, .assistant-compose-menu button:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.assistant-compose-menu { position: fixed; inset: auto; margin: 0; padding: 10px; box-sizing: border-box; border: 1px solid var(--line); border-radius: 10px; background: var(--card, white); color: var(--ink); box-shadow: 0 12px 32px #10171926; overflow-y: auto; font-family: inherit; }
.assistant-compose-menu::backdrop { background: transparent; }
.assistant-compose-menu > strong { display: block; margin: 2px 8px 8px; font-size: 14px; }
.assistant-compose-menu > p { margin: 0 8px 8px; color: var(--soft); font-size: 13px; line-height: 1.5; }
.assistant-widget .assistant-compose-menu button { display: block; width: 100%; min-height: 44px; height: auto; margin: 2px 0; padding: 10px; border: 1px solid transparent; border-radius: 6px; background: transparent; color: var(--ink); font: inherit; font-size: 14px; text-align: left; cursor: pointer; white-space: normal; }
.assistant-compose-menu button b, .assistant-compose-menu button small { display: block; }
.assistant-compose-menu button b { font-size: 14px; font-weight: 600; }
.assistant-compose-menu button small { margin-top: 4px; color: var(--soft); font-size: 13px; font-weight: 400; line-height: 1.5; }
.assistant-widget .assistant-compose-menu button:hover:not(:disabled), .assistant-widget .assistant-compose-menu button[aria-pressed="true"] { background: color-mix(in srgb, var(--teal) 8%, var(--card, white)); border-color: color-mix(in srgb, var(--teal) 28%, var(--line)); }
.assistant-widget .assistant-feedback { display: flex; flex-wrap: wrap; align-items: center; gap: 2px; margin-top: 10px; padding-top: 6px; border-top: 0; }
.assistant-widget .assistant-feedback > span:empty { display: none; }
.assistant-widget .assistant-feedback > span { width: 100%; font-size: 12px; }
.assistant-widget .assistant-feedback button { width: auto; min-height: 36px; padding: 6px 8px; border: 0; background: transparent; color: var(--soft); font: inherit; font-size: 12px; }
.assistant-widget .assistant-feedback button:hover, .assistant-widget .assistant-feedback button.active { background: color-mix(in srgb, var(--teal) 8%, var(--card, white)); color: var(--teal); }
.assistant-widget .assistant-answer-actions { display: flex; gap: 2px; width: auto; margin-left: auto; }
.assistant-widget .assistant-answer-actions button { flex: 0 0 auto; }
.assistant-widget .assistant-unresolved-next { flex-basis: 100%; }
.assistant-widget .assistant-unresolved-next[hidden] { display: none; }
.assistant-widget .assistant-related { display: flex; flex-wrap: wrap; gap: 6px; }
.assistant-widget .assistant-related button { padding: 6px 8px; border-radius: 4px; font-size: 12px; line-height: 1.5; }
@media (max-width: 600px) {
  .assistant-widget .assistant-panel:has(.assistant-response-choice), .assistant-widget.chat-expanded .assistant-panel { top: max(8px, env(safe-area-inset-top)); left: 8px; right: 8px; bottom: auto; width: auto; height: calc(100dvh - max(8px, env(safe-area-inset-top)) - max(8px, env(safe-area-inset-bottom))); }
  .assistant-widget .assistant-expand-toggle { display: none; }
  .assistant-widget .assistant-messages { padding: 14px; }
  .assistant-widget .assistant-form { padding: 8px 10px 10px !important; }
  .assistant-compose-tools { gap: 0; }
  .assistant-widget .assistant-compose-tools .assistant-image-pick { width: 32px; min-width: 32px; }
  .assistant-widget .assistant-mode-trigger, .assistant-widget .assistant-template-trigger { padding: 0 6px; font-size: 12px; }
  .assistant-widget .assistant-compose-tools .assistant-quota { font-size: 10px; padding: 0 4px; }
  .assistant-widget .assistant-feedback button { min-height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  .assistant-widget .assistant-panel { transition: none; }
}