:root{--color-primary: #1a73e8;--color-primary-hover: #1765cc;--color-primary-weak: #e8f0fe;--color-on-primary: #ffffff;--text-primary: #202124;--text-secondary: #5f6368;--text-tertiary: #80868b;--text-disabled: #bdc1c6;--border: #dadce0;--border-strong: #bdc1c6;--bg-base: #ffffff;--bg-subtle: #f8f9fa;--bg-muted: #f1f3f4;--sidebar-bg: #202124;--sidebar-text: #e8eaed;--sidebar-text-muted: #9aa0a6;--sidebar-active-bg: rgba(26, 115, 232, .16);--sidebar-active-text: #8ab4f8;--color-success: #1e8e3e;--color-success-weak: #e6f4ea;--color-warning: #f9ab00;--color-warning-weak: #fef7e0;--color-error: #d93025;--color-error-weak: #fce8e6;--color-info: #1a73e8;--color-info-weak: #e8f0fe;--fs-caption: 12px;--fs-body: 14px;--fs-body-lg: 16px;--fs-title: 18px;--fs-heading: 20px;--fs-display: 24px;--fw-regular: 400;--fw-medium: 500;--fw-bold: 700;--lh-tight: 1.3;--lh-snug: 1.4;--lh-base: 1.6;--lh-loose: 1.8;--ls-normal: 0;--ls-tight: -.01em;--ls-wide: .04em;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-pill: 999px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-8: 48px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Heiti TC", "Microsoft JhengHei", "微軟正黑體", "Noto Sans TC", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;--shadow-sm: 0 1px 2px rgba(60, 64, 67, .1);--shadow-md: 0 2px 8px rgba(60, 64, 67, .15);--shadow-lg: 0 4px 16px rgba(60, 64, 67, .2);--bp-mobile: 480px;--bp-tablet: 768px}body{font-family:var(--font-sans);font-size:var(--fs-body);line-height:var(--lh-base);letter-spacing:var(--ls-normal);color:var(--text-primary);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,textarea,select{font-family:inherit;letter-spacing:inherit}._widgetContainer_1k3u7_5{position:fixed;bottom:var(--space-5);right:var(--space-5);z-index:9999;font-family:var(--font-sans);font-size:var(--fs-body);letter-spacing:var(--ls-normal)!important}._chatPanel_1k3u7_21{position:absolute;bottom:64px;right:0;width:360px;max-height:560px;display:flex;flex-direction:column;background:var(--bg-base);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden}@media (max-width: 480px){._chatPanel_1k3u7_21{width:calc(100vw - var(--space-4));right:calc(-1 * var(--space-2));max-height:80vh}}._chatHeader_1k3u7_45{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--color-primary);color:var(--color-on-primary)}._chatTitle_1k3u7_54{flex:1;margin:0;font-size:var(--fs-body-lg);font-weight:var(--fw-medium);line-height:var(--lh-snug)}._reconnectingBadge_1k3u7_63{font-size:var(--fs-caption);opacity:.85;line-height:var(--lh-snug)}._closeButton_1k3u7_69{background:none;border:none;color:var(--color-on-primary);cursor:pointer;font-size:var(--fs-body-lg);padding:var(--space-1);border-radius:var(--radius-sm);line-height:var(--lh-snug)}._closeButton_1k3u7_69:hover{background:#fff3}._queueBanner_1k3u7_85{display:flex;align-items:center;gap:var(--space-2);padding:10px var(--space-4);background:var(--color-warning-weak);color:#5d4037;font-size:var(--fs-body);line-height:var(--lh-base);border-bottom:1px solid #ffe082}._queueIcon_1k3u7_97{font-size:var(--fs-body-lg)}._errorBanner_1k3u7_101{padding:10px var(--space-4);background:var(--color-error-weak);color:var(--color-error);font-size:var(--fs-body);line-height:var(--lh-base);border-bottom:1px solid #f48fb1}._systemNoticeBanner_1k3u7_111{display:flex;align-items:center;gap:var(--space-2);padding:10px var(--space-4);background:var(--color-primary-weak);color:var(--text-primary);font-size:var(--fs-body);line-height:var(--lh-base);border-bottom:1px solid #aecbfa}._systemNoticeIcon_1k3u7_123{font-size:var(--fs-body-lg);flex-shrink:0}._welcomeMessage_1k3u7_129{flex:1;display:flex;align-items:center;justify-content:center;padding:var(--space-5) var(--space-4);color:var(--text-secondary);text-align:center;line-height:var(--lh-base);font-size:var(--fs-body)}._messageList_1k3u7_144{flex:1;overflow-y:auto;padding:var(--space-3) var(--space-4);display:flex;flex-direction:column;gap:var(--space-2)}._messageBubble_1k3u7_154{max-width:78%;padding:var(--space-2) var(--space-3);border-radius:var(--radius-lg);line-height:var(--lh-base);word-break:break-word;font-size:var(--fs-body)}._bubbleVisitor_1k3u7_164{align-self:flex-end;background:var(--color-primary);color:var(--color-on-primary);border-bottom-right-radius:var(--radius-sm)}._bubbleAgent_1k3u7_171{align-self:flex-start;background:var(--bg-muted);color:var(--text-primary);border-bottom-left-radius:var(--radius-sm)}._bubbleBody_1k3u7_178{margin:0;white-space:pre-wrap}._deliveryStatus_1k3u7_183{display:block;font-size:var(--fs-caption);opacity:.7;margin-top:2px;text-align:right;line-height:var(--lh-snug)}._waitingBubble_1k3u7_193{align-self:flex-start;max-width:78%;padding:var(--space-2) var(--space-3);background:var(--bg-muted);border-radius:var(--radius-lg);border-bottom-left-radius:var(--radius-sm);color:var(--text-secondary);font-size:var(--fs-body);line-height:var(--lh-snug)}._waitingDots_1k3u7_205{display:inline-flex;gap:3px;align-items:center}._waitingDots_1k3u7_205 span{width:5px;height:5px;border-radius:var(--radius-pill);background:var(--text-tertiary);animation:_dotBounce_1k3u7_1 1.4s ease-in-out infinite both}._waitingDots_1k3u7_205 span:nth-child(1){animation-delay:0s}._waitingDots_1k3u7_205 span:nth-child(2){animation-delay:.2s}._waitingDots_1k3u7_205 span:nth-child(3){animation-delay:.4s}@keyframes _dotBounce_1k3u7_1{0%,80%,to{transform:scale(.7);opacity:.4}40%{transform:scale(1);opacity:1}}._chatInputForm_1k3u7_229{display:flex;gap:var(--space-2);padding:var(--space-3) var(--space-4);border-top:1px solid var(--border);background:var(--bg-base)}._srOnly_1k3u7_237{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}._chatTextarea_1k3u7_249{flex:1;resize:none;border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-2) 10px;font-size:var(--fs-body);font-family:inherit;line-height:var(--lh-base);color:var(--text-primary);outline:none;transition:border-color .15s}._chatTextarea_1k3u7_249:focus{border-color:var(--color-primary)}._chatTextarea_1k3u7_249:disabled{background:var(--bg-subtle);color:var(--text-tertiary)}._sendButton_1k3u7_274{align-self:flex-end;padding:var(--space-2) var(--space-4);background:var(--color-primary);color:var(--color-on-primary);border:none;border-radius:var(--radius-md);cursor:pointer;font-size:var(--fs-body);font-weight:var(--fw-medium);line-height:var(--lh-snug);transition:background .15s;white-space:nowrap}._sendButton_1k3u7_274:hover:not(:disabled){background:var(--color-primary-hover)}._sendButton_1k3u7_274:disabled{background:var(--border);color:var(--text-tertiary);cursor:not-allowed}._toggleButton_1k3u7_301{width:56px;height:56px;border-radius:var(--radius-pill);background:var(--color-primary);color:var(--color-on-primary);border:none;cursor:pointer;font-size:var(--fs-display);line-height:var(--lh-snug);box-shadow:var(--shadow-md);transition:background .15s,transform .15s;display:flex;align-items:center;justify-content:center}._toggleButton_1k3u7_301:hover{background:var(--color-primary-hover);transform:scale(1.05)}._toggleButtonOpen_1k3u7_324{background:var(--text-secondary);font-size:var(--fs-heading)}._attachmentUpload_1k3u7_330{display:flex;flex-direction:column;gap:2px;padding:var(--space-1) var(--space-4) 0}._attachmentLabel_1k3u7_337{font-size:var(--fs-caption);color:var(--text-secondary);line-height:var(--lh-snug)}._attachmentInput_1k3u7_343{font-size:var(--fs-caption);color:var(--text-secondary);max-width:100%}._attachmentInput_1k3u7_343:disabled{color:var(--text-tertiary);cursor:not-allowed}._uploadStatus_1k3u7_354{display:flex;align-items:center;gap:var(--space-2);font-size:var(--fs-caption);color:var(--text-secondary);line-height:var(--lh-snug)}._uploadProgressBar_1k3u7_363{width:100px;height:6px}._attachmentError_1k3u7_368{margin:0;color:var(--color-error);font-size:var(--fs-caption);line-height:var(--lh-snug)}._attachmentImage_1k3u7_376{display:block;max-width:200px;max-height:200px;border-radius:var(--radius-md);object-fit:contain;background:#fff;padding:2px}._attachmentVideo_1k3u7_387{display:block;max-width:240px;max-height:240px;border-radius:var(--radius-md)}._attachmentLoadError_1k3u7_394{margin:0;color:var(--color-error);font-size:var(--fs-caption);line-height:var(--lh-snug)}