:root{color-scheme:dark;--bg: #05070c;--panel: #0b0f19;--surface: #111827;--surface-2: #151d2d;--border: rgba(255,255,255,.08);--border-strong: rgba(14,165,233,.36);--text: #f3f4f6;--secondary: #9ca3af;--muted: #687386;--accent: #0ea5e9;--teal: #0d9488;--danger: #ef4444;--success: #10b981;--card: rgba(17,24,39,.82);--shadow: rgba(0,0,0,.34);--code: #070b14;--gradient: linear-gradient(135deg,#0ea5e9,#0d9488);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}:root[data-theme=light]{color-scheme:light;--bg: #f5f8fc;--panel: #fff;--surface: #eef3f9;--surface-2: #f8fafc;--border: rgba(15,23,42,.1);--border-strong: rgba(2,132,199,.32);--text: #111827;--secondary: #536074;--muted: #7a8699;--accent: #0284c7;--teal: #0f766e;--danger: #dc2626;--success: #059669;--card: rgba(255,255,255,.88);--shadow: rgba(15,23,42,.1);--code: 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var(--border)}.brand-lockup{display:flex;align-items:center;gap:12px;font-size:19px}.brand-icon{display:block;border-radius:28%;object-fit:cover;flex:none;box-shadow:0 7px 22px #0ea5e933}.theme-switch{margin-top:18px;display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;background:var(--surface);border:1px solid var(--border);border-radius:10px}.theme-switch button{height:30px;border:0;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center;gap:5px;transition:color .15s,background .15s}.theme-switch button svg{font-size:12px}.theme-switch button.active{color:var(--text);background:var(--panel);box-shadow:0 3px 10px var(--shadow)}.sidebar-scroll{flex:1;min-height:0;overflow:auto;padding:18px 20px;display:flex;flex-direction:column;gap:18px}.section-label{margin:0 0 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span{font-size:12px;text-align:center}.client-card:first-child span{text-align:left}.client-card.active{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 9%,var(--surface-2));color:var(--text);box-shadow:0 0 0 1px #0ea5e914}.client-card.active b{color:var(--accent);background:color-mix(in srgb,var(--accent) 14%,transparent)}.sidebar-details{border:1px solid var(--border);border-radius:11px;background:var(--surface-2);overflow:hidden}.sidebar-details summary{cursor:pointer;padding:13px 14px;color:var(--secondary);font-size:12px;font-weight:700;letter-spacing:.05em;list-style:none}.sidebar-details summary svg{width:14px;margin-right:6px}.sidebar-details summary:after{content:"⌄";float:right}.sidebar-details[open] summary:after{content:"⌃"}.tool-directory{display:flex;flex-direction:column;gap:6px;padding:0 9px 10px}.tool-entry{min-height:40px;display:grid;grid-template-columns:16px 1fr auto;align-items:center;gap:10px;padding:7px 10px;border:1px solid var(--border);border-radius:8px;background:var(--panel)}.tool-entry i{width:8px;height:8px;border-radius:50%;background:var(--border-strong);flex:none;justify-self:center;transition:background .2s}.tool-entry.running i{background:var(--accent);box-shadow:0 0 8px var(--accent);animation:pulse 1s infinite}.tool-entry.done i{background:var(--success);box-shadow:none}.tool-entry.interrupted i{background:var(--muted);box-shadow:none}.tool-entry code{font-size:11px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-entry span{color:var(--muted);font-size:10px;white-space:nowrap}.tool-entry.running span{color:var(--accent)}.tool-entry.done span{color:var(--success)}.usage-card{padding:0 14px 14px;display:flex;flex-direction:column;gap:8px}.usage-card span{display:flex;justify-content:space-between;color:var(--secondary);font-size:12px}.usage-card b{color:var(--text)}.usage-card small{padding-top:8px;border-top:1px solid 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img{width:min(100%,760px);height:auto;display:block;border-radius:12px;box-shadow:0 12px 40px var(--shadow)}.share-loading{color:var(--secondary)}.share-error{color:var(--danger)}.share-dialog>footer{padding:15px 20px;display:flex;align-items:center;justify-content:flex-end;gap:10px;border-top:1px solid var(--border)}.share-dialog footer span{margin-right:auto;color:var(--muted);font-size:11px}.share-dialog footer button,.share-dialog footer a{min-height:38px;padding:0 14px;display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:9px;background:var(--surface);color:var(--text);text-decoration:none;cursor:pointer;font-size:12px}.share-dialog footer a{color:#fff;border:0;background:var(--gradient)}.share-dialog footer .disabled{opacity:.5;pointer-events:none}@keyframes pulse{50%{opacity:.35;transform:scale(.86)}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}@media(max-width:900px){.sidebar{position:absolute;top:56px;height:calc(100% - 56px);transform:translate(-100%);transition:transform .25s;box-shadow:18px 0 40px #00000047}.sidebar.open{transform:translate(0)}.sidebar-backdrop.visible{display:block;position:absolute;inset:56px 0 0;z-index:90;border:0;background:#0f172a57}.chat-header{height:56px;padding:0 16px}.mobile-menu{display:block}.chat-header>div span{display:none}.messages-area{padding:20px}.composer-area{padding:10px 12px 12px}}@media(max-width:640px){.welcome-screen{padding:30px 16px 20px}.welcome-screen h1{font-size:24px}.guide-grid,.suggestion-grid{grid-template-columns:1fr 1fr}.suggestion-grid span{display:none}.guide-grid article{padding:11px}.message-stack{max-width:90%}.messages-area{padding:16px 12px}.share-trigger{width:36px;padding:0}.share-trigger span,.composer-hints{display:none}.share-overlay{padding:0;align-items:end}.share-dialog{max-height:92vh;border-radius:20px 20px 0 0}.share-dialog>footer{display:grid;grid-template-columns:1fr 1fr}.share-dialog footer span{grid-column:1/-1}.share-dialog footer a{grid-column:1/-1;justify-content:center}}