:is(html:has(.chatApp),body:has(.chatApp)){height:100%;overflow:hidden}.chatApp{height:var(--chat-vh,100dvh);background:var(--bg);flex-direction:column;display:flex;position:fixed;inset:0}.chatTop{padding:6px 10px;padding-top:max(6px, env(safe-area-inset-top));background:var(--band-gradient);color:var(--on-dark);flex:none;gap:4px;display:grid}.chatTopRow{justify-content:space-between;align-items:center;gap:8px;min-width:0;display:flex}.chatBrand{flex:auto;align-items:center;gap:8px;min-width:0;display:flex}.chatBrandLogo{background:var(--bg);border-radius:50%;flex:none;place-items:center;width:32px;height:32px;display:grid}.chatBrandText{min-width:0;line-height:1.2;display:grid}.chatBrandText strong{letter-spacing:.04em;white-space:nowrap;font-size:.95rem}.chatBrandText span{color:var(--on-dark-muted);overflow-wrap:anywhere;font-size:.68rem}.chatTagline{letter-spacing:.02em;color:var(--on-dark-muted);border-top:1px solid #f7f4ec24;flex-wrap:wrap;justify-content:space-between;gap:0 10px;margin:0;padding-top:4px;font-size:.64rem;line-height:1.35;display:flex}.chatPowered{color:var(--accent-bright);font-weight:700}.chatTopActions{flex:none;gap:4px;display:flex}.topButton{min-width:46px;min-height:40px;color:var(--on-dark);cursor:pointer;background:#f7f4ec14;border:1px solid #f7f4ec47;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:1px;padding:3px 6px;font-size:.64rem;font-weight:600;display:inline-flex}.topButton.iconOnly{min-width:40px}.wideOnlyFlex{display:none}@media (min-width:520px){.topButton{border-radius:999px;flex-direction:row;gap:5px;padding:6px 10px;font-size:.8rem}.wideOnlyFlex{display:inline-flex}.chatTagline{font-size:.7rem}}.chatTop .topButton svg{width:16px;height:16px}.topButton svg,.toolIcon svg,.sendButton svg,.historyDelete svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;flex:none;width:18px;height:18px}.topButton:hover:not(:disabled){background:#f7f4ec2e}.topButton:disabled{opacity:.5;cursor:not-allowed}.wideOnly{display:none}@media (min-width:520px){.wideOnly{display:inline}}.chatThread{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;flex:auto;min-height:0;overflow-y:auto}.chatThreadInner{max-width:820px;margin:0 auto;padding:16px 16px 24px}.chatLoading{color:var(--muted);text-align:center;margin-top:40px}.chatCard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.chatEmpty{text-align:center;justify-items:center;gap:10px;padding:24px 0 8px;display:grid}.chatEmptyLogo{width:76px;height:76px;box-shadow:var(--shadow);background:#fff;border-radius:50%;place-items:center;display:grid}.chatEmpty h1{color:var(--text-strong);margin:6px 0 0;font-size:clamp(1.3rem,5vw,1.7rem)}.chatEmpty>p{color:var(--muted);max-width:460px;margin:0}.chatExamples{gap:8px;width:100%;max-width:560px;margin-top:8px;display:grid}.chatExamples .exampleChip{background:#fff}.privacyNotice{max-width:560px;color:var(--muted);margin:8px 0 0;font-size:.78rem;line-height:1.55}.privacyNotice.full{gap:8px;max-width:none;display:grid}.privacyNotice.full p{margin:0}.chatMessages{gap:18px;margin:0;padding:0;list-style:none;display:grid}.msg{gap:10px;scroll-margin-top:12px;display:flex}.msg.user{justify-content:flex-end}.msgBubble{background:var(--dark);max-width:min(85%,640px);color:var(--on-dark);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:18px 18px 4px;padding:10px 14px;line-height:1.5}.msgAttach{color:var(--on-dark-muted);margin-top:6px;font-size:.78rem;display:block}.msgAvatar{border:1px solid var(--line);background:#fff;border-radius:50%;flex:none;place-items:center;width:30px;height:30px;display:grid}.msgBody{flex:auto;min-width:0;padding-top:3px}.msgBody .aiAnswerBody{line-height:1.65}.msgBody .aiRiskNotice{margin-top:4px}.msgActions{gap:8px;display:flex}.msgActions .readAloud{min-height:36px;margin-top:4px;padding:6px 12px;font-size:.82rem}.thinking{color:var(--muted);align-items:center;gap:10px;margin:4px 0 0;font-size:.92rem;display:flex}.thinkingDots{gap:4px;display:inline-flex}.thinkingDots i{background:var(--accent-bright);border-radius:50%;width:7px;height:7px;animation:1.2s ease-in-out infinite aiPulse}.thinkingDots i:nth-child(2){animation-delay:.2s}.thinkingDots i:nth-child(3){animation-delay:.4s}.chatNotice{border-radius:12px;align-items:flex-start;gap:10px;padding:10px 12px;font-size:.86rem;line-height:1.45;display:flex}.chatNotice+.chatNotice{margin-top:6px}.chatNotice span{flex:1}.chatNotice button{cursor:pointer;background:0 0;border:0;border-radius:50%;flex:none;width:28px;height:28px;font-size:1.2rem;line-height:1}.chatNotice.error{background:var(--danger-bg);color:var(--danger)}.chatNotice.warn{background:var(--warn-bg);color:var(--text);margin-bottom:14px;display:block}.chatFooter{background:linear-gradient(to bottom, #f7f4ec00, var(--bg) 14px);padding-bottom:env(safe-area-inset-bottom);flex:none}.chatFooterInner{gap:8px;max-width:820px;margin:0 auto;padding:6px 12px 8px;display:grid}.composer{border:1px solid var(--line);background:#fff;border-radius:20px;gap:6px;padding:8px;display:grid;box-shadow:0 2px 12px #17352d14}.composer:focus-within{border-color:var(--accent-bright)}.composerInput{resize:none;background:0 0;border:0;outline:0;width:100%;min-height:44px;max-height:168px;padding:10px 8px;font-size:16px;line-height:1.45;overflow-y:hidden}.composerInput:disabled{cursor:not-allowed}.composerBar{justify-content:space-between;align-items:center;gap:8px;display:flex}.composer .composerTools{flex-wrap:nowrap;gap:4px;min-width:0;display:flex;overflow-x:auto}.toolIcon{min-width:48px;min-height:44px;color:var(--text);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:1px;padding:4px 6px;font-size:.66rem;font-weight:600;display:inline-flex}.toolIcon:hover:not(:disabled){background:var(--bg)}.toolIcon:focus-visible,.sendButton:focus-visible,.topButton:focus-visible,.fileAction:focus-visible,.fileRemove:focus-visible{outline:3px solid var(--accent-bright);outline-offset:2px}.toolIcon:disabled{opacity:.4;cursor:not-allowed}.toolIcon.active{background:var(--danger-bg);color:var(--danger)}.sendButton{background:var(--dark);width:46px;height:46px;color:var(--on-dark);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;border:0;border-radius:50%;flex:none;place-items:center;display:grid}.sendButton:disabled{background:var(--line);color:var(--muted);cursor:not-allowed}.composerListening{background:var(--danger-bg);overflow-wrap:anywhere;border-radius:12px;align-items:center;gap:8px;padding:8px 10px;font-size:.88rem;display:flex}.composerFiles{gap:8px;margin:0;padding:0 0 2px;list-style:none;display:flex;overflow-x:auto}.fileChip{border:1px solid var(--line);background:var(--bg);border-radius:12px;flex:none;align-items:center;gap:8px;max-width:260px;padding:6px;display:flex}.fileChip.processing{padding-right:12px}.fileThumb,.fileDocIcon{border-radius:8px;flex:none;width:44px;height:44px}.fileThumb{object-fit:cover;background:#fff}.fileDocIcon{background:var(--navy);color:#fff;letter-spacing:.06em;place-items:center;font-size:.72rem;font-weight:800;display:grid}.fileMeta{min-width:0;display:grid}.fileName{text-overflow:ellipsis;white-space:nowrap;max-width:110px;font-size:.8rem;font-weight:600;overflow:hidden}.fileSize{color:var(--muted);font-size:.72rem}.fileAction{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:999px;min-height:32px;padding:4px 10px;font-size:.74rem;font-weight:600}.fileRemove{width:32px;height:32px;color:var(--danger);cursor:pointer;background:#fff;border:0;border-radius:50%;flex:none;font-size:1.2rem;line-height:1}.fileAction:disabled,.fileRemove:disabled{opacity:.5;cursor:not-allowed}.fileSpinner{border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:22px;height:22px;margin:0 4px;animation:.8s linear infinite chatSpin}.fileSpinner.light{border-color:#f7f4ec4d;border-top-color:var(--on-dark)}@keyframes chatSpin{to{transform:rotate(360deg)}}.chatFinePrint{color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:4px 10px;margin:0;padding:0 4px;font-size:.72rem;display:flex}.settingsChip{color:var(--accent);cursor:pointer;text-underline-offset:2px;background:0 0;border:0;padding:2px 0;font-size:.72rem;font-weight:600;text-decoration:underline}.sheetLayer{z-index:60;position:fixed;inset:0}.sheetBackdrop{cursor:pointer;background:#0f262073;border:0;position:absolute;inset:0}.sheet{background:var(--bg);outline:0;flex-direction:column;width:min(92vw,400px);animation:.18s ease-out sheetIn;display:flex;position:absolute;top:0;bottom:0;box-shadow:0 0 40px #00000040}.sheet.left{left:0}.sheet.right{right:0}@keyframes sheetIn{0%{opacity:.4}}.sheetHead{padding:12px 16px;padding-top:max(12px, env(safe-area-inset-top));border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;display:flex}.sheetHead h2{margin:0;font-size:1.1rem}.sheetClose{cursor:pointer;background:0 0;border:0;border-radius:50%;width:40px;height:40px;font-size:1.5rem;line-height:1}.sheetBody{padding:14px 16px calc(24px + env(safe-area-inset-bottom));flex:1;align-content:start;gap:12px;display:grid;overflow-y:auto}.sheetNewChat{justify-content:center;width:100%}.sheetHint,.sheetEmpty{color:var(--muted);margin:0;font-size:.8rem}.historyList{gap:8px;margin:0;padding:0;list-style:none;display:grid}.historyItem{border:1px solid var(--line);background:#fff;border-radius:12px;align-items:stretch;display:flex;overflow:hidden}.historyItem.active{border-color:var(--accent-bright)}.historyOpen{text-align:left;cursor:pointer;background:0 0;border:0;flex:1;gap:2px;min-width:0;padding:10px 12px;display:grid}.historyTitle{text-overflow:ellipsis;white-space:nowrap;font-size:.9rem;font-weight:700;overflow:hidden}.historyPreview{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:.8rem;overflow:hidden}.historyDates{color:var(--muted);font-size:.7rem}.historyDelete{border:0;border-left:1px solid var(--line);min-width:48px;color:var(--muted);cursor:pointer;background:0 0;flex:none;font-size:.76rem;font-weight:700}.historyDelete.confirm{background:var(--danger);color:#fff;padding:0 10px}.historyOpen:disabled,.historyDelete:disabled{opacity:.5;cursor:not-allowed}.settingsBlock{border-bottom:1px solid var(--line);gap:8px;padding-bottom:12px;display:grid}.settingsBlock .modeSwitch,.settingsBlock .regionRow{margin:0}.settingsProfile{justify-content:space-between;align-items:center;gap:10px;display:flex}.settingsLinks{flex-wrap:wrap;gap:8px 16px;font-size:.88rem;display:flex}.settingsLinks a{color:var(--accent);text-underline-offset:3px;text-decoration:underline}.settingsCredit{color:var(--muted);margin:0;font-size:.74rem}@media (prefers-reduced-motion:reduce){.fileSpinner,.thinkingDots i,.sheet{animation:none}}.aiDiagram{border:1px solid var(--line);border-radius:var(--radius-sm);font-family:var(--mono);white-space:pre;-webkit-overflow-scrolling:touch;tab-size:4;background:#fff;margin:0 0 14px;padding:12px 14px;font-size:.8rem;line-height:1.45;overflow-x:auto}.installPage{background:var(--band-gradient);place-items:center;min-height:100dvh;padding:24px 16px;display:grid}.installCard{border-radius:var(--radius);background:var(--bg);text-align:center;justify-items:center;gap:8px;width:100%;max-width:460px;padding:28px 22px;display:grid;box-shadow:0 10px 40px #00000040}.installLogo{width:88px;height:88px;box-shadow:var(--shadow);background:#fff;border-radius:50%;place-items:center;display:grid}.installCard h1{letter-spacing:.05em;margin:8px 0 0;font-size:1.6rem}.installSub{color:var(--muted);margin:0}.installTag{color:var(--muted);margin:0 0 6px;font-size:.78rem}.installTag .chatPowered{color:var(--accent)}.installText{margin:6px 0;line-height:1.6}.installCard .installButton{margin-top:4px}.installActions{gap:8px;width:100%;margin-top:12px;display:grid}.installActions .button{justify-content:center}