:root{--bg:#fffaf3;--card:#fffdf9;--text:#35312d;--muted:#81786d;--primary:#705542;--on-primary:#fffbf7;--lavender:#e8e2f2;--purple:#625377;--apricot:#f6dfcc;--sage:#e0e9dc;--line:#eae0d4;--light:#f2ece4;--danger:#a4493a;--shadow:0 8px 28px #70554206;--serif:"Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", STSong, SimSun, "Times New Roman", serif;font-synthesis:none;color:var(--text);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;background:#f5efe7;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,sans-serif;font-size:14px;font-weight:400;line-height:1.6}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible{outline:3px solid var(--primary);outline-offset:3px}a:focus-visible{outline:3px solid var(--primary);outline-offset:3px}button{border:0}input,textarea,select{background:var(--card);width:100%;color:var(--text);border:1px solid var(--line);border-radius:13px;outline:none;padding:13px 14px;font-size:16px}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #e8e2f280}textarea{resize:vertical;min-height:104px}h1,h2,h3,p{margin:0}h1{letter-spacing:-1px;font-size:26px;line-height:1.35}h2{letter-spacing:-.5px;font-size:19px}h3{font-size:16px}small{font-size:12px}.muted{color:var(--muted)}.label{letter-spacing:1.8px;text-transform:uppercase;font-size:11px;font-weight:600}.app-shell{background:var(--bg);max-width:480px;min-height:100dvh;margin:auto;position:relative;box-shadow:0 0 90px #203c2d0b}.topbar{padding:20px 22px 10px;padding-top:max(20px,env(safe-area-inset-top));background:var(--bg);justify-content:space-between;align-items:center;gap:12px;display:flex}.brand{letter-spacing:-.5px;align-items:center;gap:9px;font-size:18px;font-weight:700;display:flex}.brand-mark{background:var(--primary);width:33px;height:33px;color:var(--lavender);border-radius:11px;place-items:center;display:grid;transform:rotate(-5deg)}.brand-mark svg{transform:rotate(5deg)}.beta{background:var(--light);color:var(--primary);border-radius:4px;padding:2px 6px;font-size:10px;font-weight:500}.icon-button{width:38px;height:38px;color:var(--text);background:var(--card);border:1px solid var(--line);border-radius:50%;flex-shrink:0;place-items:center;display:inline-grid}.avatar{background:var(--lavender);width:36px;height:36px;color:var(--primary);border-radius:50%;place-items:center;font-weight:700;display:grid}.row{align-items:center;gap:10px;display:flex}.between{justify-content:space-between}.stack{flex-direction:column;gap:16px;display:flex}.section-heading{justify-content:space-between;align-items:center;margin:28px 0 14px;display:flex}.section-heading span{color:var(--muted);font-size:12px}.title-block{margin:12px 0 24px}.title-block p{color:var(--muted);margin-top:8px;font-size:13px}.primary,.secondary,.danger{border-radius:13px;justify-content:center;align-items:center;gap:8px;min-height:46px;padding:11px 18px;font-weight:600;text-decoration:none;display:inline-flex}.primary{background:var(--primary);color:#fff}.secondary{color:var(--text);background:var(--card);border:1px solid var(--line)}.danger{color:var(--danger);background:#fff0ed}.full{width:100%}.text-button{color:var(--primary);background:0 0;padding:6px 0;font-size:13px;font-weight:600}.card{border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow);border-radius:20px;padding:20px}.hero{background:var(--primary);color:#fff;border-radius:23px;padding:24px;position:relative;overflow:hidden}.hero .label{color:#c8ddc5}.hero h2{z-index:1;white-space:pre-line;margin:10px 0;font-size:24px;line-height:1.5;position:relative}.hero p{color:#c6d7cf;max-width:220px;font-size:12px}.hero .primary{background:var(--lavender);color:#174432;min-height:40px;margin-top:20px;font-size:13px}.hero-orbit{color:#d8f4aa;border:1px solid #d2ebc324;border-radius:50%;place-items:center;width:156px;height:156px;display:grid;position:absolute;top:8px;right:-38px;transform:rotate(-18deg)}.hero-orbit:after{content:"";border:1px solid #d2ebc324;border-radius:50%;width:194px;height:110px;position:absolute}.hero-orbit svg{opacity:.9;width:65px;height:65px}.agent-card{text-align:left;width:100%;color:var(--text);transition:transform .18s;display:block;position:relative}.agent-card:active{transform:scale(.99)}.agent-avatar{color:#426642;background:#eef2e6;border-radius:16px;flex-shrink:0;place-items:center;width:49px;height:49px;display:grid}.agent-card p{color:var(--muted);margin-top:3px;font-size:12px}.agent-card .agent-footer{border-top:1px solid var(--line);margin-top:18px;padding-top:14px;font-size:12px}.badge{background:var(--light);color:var(--muted);white-space:nowrap;border-radius:7px;align-items:center;gap:5px;padding:4px 8px;font-size:11px;display:inline-flex}.badge.active{color:#426137;background:#e6f2dd}.badge.success{color:#296b45;background:#e4f4e8}.badge.failed{color:#ad4d3d;background:#ffebe5}.dot{background:currentColor;border-radius:50%;width:5px;height:5px}.empty{text-align:center;background:var(--card);border:1px dashed #d3ddd1;border-radius:20px;padding:34px 20px}.empty 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button.selected:before{content:"";background:var(--lavender);z-index:-1;border-radius:10px;width:37px;height:27px;position:absolute;top:-3px}.banner{color:#785a28;background:#fff1d8;border-radius:12px;align-items:flex-start;gap:8px;margin:8px 22px 0;padding:11px 13px;font-size:12px;display:flex}.notice{background:var(--light);color:var(--muted);border-radius:12px;align-items:flex-start;gap:8px;padding:12px 14px;font-size:12px;display:flex}.notice svg,.banner svg{flex-shrink:0;margin-top:2px}.error{color:var(--danger);background:#fff0ed}.toast{top:max(20px,env(safe-area-inset-top));color:#fff;z-index:100;background:#1c342c;border-radius:13px;width:min(90%,410px);padding:13px 16px;font-size:13px;position:fixed;left:50%;transform:translate(-50%);box-shadow:0 12px 40px #0003}.welcome-art{background:radial-gradient(#e0edcd 0,#f1f6e9 48%,#0000 70%);border-radius:35px;place-items:center;height:244px;margin:12px 0 32px;display:grid;position:relative}.orb{color:#24513a;z-index:1;background:linear-gradient(145deg,#e2f6b2,#a2ce77);border-radius:40px;place-items:center;width:130px;height:130px;display:grid;transform:rotate(-9deg);box-shadow:inset 0 3px 6px #ffffff80,0 20px 40px #97b27e30}.orb svg{width:73px;height:73px;transform:rotate(9deg)}.orbit-ring{border:1px solid #d5e1c9;border-radius:50%;width:245px;height:185px;position:absolute;transform:rotate(-27deg)}.orbit-ring.second{width:278px;height:223px;transform:rotate(28deg)}.float-tag{color:#567050;box-shadow:var(--shadow);z-index:2;background:#ffffffeb;border:1px solid #e4eada;border-radius:10px;align-items:center;gap:7px;padding:9px 12px;font-size:11px;display:flex;position:absolute}.float-tag.first{top:41px;right:7px}.float-tag.last{bottom:26px;left:2px}.welcome h1{letter-spacing:-1.5px;font-size:35px;font-weight:600;line-height:1.5}.welcome h1 span{color:var(--primary)}.welcome-copy{color:var(--muted);margin:14px 0 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0;display:flex}.plan-price{margin:13px 0;font-size:30px;font-weight:700}.plan-price small{color:var(--muted);font-size:12px;font-weight:400}.plan-items{color:var(--muted);padding-left:18px;font-size:12px;line-height:2}.spacer{height:20px}.loading{text-align:center;color:var(--muted);padding:70px 20px}.spinner{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.bottom-note{text-align:center;color:var(--muted);margin-top:28px;font-size:11px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (min-width:600px){.app-shell{border-left:1px solid var(--line);border-right:1px solid var(--line)}.welcome{padding-top:35px}.welcome-art{height:285px}.page{padding-top:25px}}@media (max-width:370px){.page,.topbar{padding-left:18px;padding-right:18px}.welcome h1{font-size:31px}.hero{padding:20px}.feature-line{gap:10px}.float-tag.first{right:0}.float-tag.last{left:0}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.avatar-choices{gap:10px;display:flex}.avatar-choices button{width:48px;height:48px;color:var(--muted);background:var(--light);border:1px solid #0000;border-radius:14px}.avatar-choices button.selected{border-color:var(--primary);color:var(--primary)}.tool-choices{grid-template-columns:1fr 1fr;gap:10px;display:grid}.tool-choices label{background:var(--light);border-radius:10px;align-items:center;gap:8px;padding:12px;display:flex}.tool-choices input{width:18px;height:18px;accent-color:var(--primary)}.upload-button{margin:16px 0 8px;position:relative;overflow:hidden}.upload-button input{opacity:0;cursor:pointer;width:100%;position:absolute;top:0;bottom:0;left:0;right:0}.file-card h3{overflow-wrap:anywhere;margin:12px 0 5px}.file-source{color:var(--muted);overflow-wrap:anywhere;margin:8px 0;font-size:10px}.help-copy h2,.help-copy h3{margin-bottom:10px}.help-copy p{color:var(--muted);margin:10px 0 18px;font-size:13px}.conversation-switch{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:10px;margin:20px 0 8px;display:grid}.conversation-switch .secondary{padding:11px 13px}.conversation-header h1{overflow-wrap:anywhere}.text-button svg{vertical-align:middle}.conversation-entry .task-prompt{margin-top:0}.conversation-entry .card{padding:16px}.file-card a{text-decoration:none}details summary{cursor:pointer}.help-copy{overflow-wrap:anywhere}body.chat-open{overscroll-behavior:none;overflow:hidden}.app-shell.chat-shell{top:var(--chat-top,0);height:var(--chat-height,100dvh);flex-direction:column;width:100%;max-width:760px;min-height:0;display:flex;position:fixed;left:50%;overflow:hidden;transform:translate(-50%)}.chat-shell .chat-page{flex:1;min-height:0;padding:0;display:flex;overflow:hidden}.chat-room{background:var(--bg);flex-direction:column;flex:1;min-width:0;min-height:0;display:flex;position:relative}.chat-header{padding:12px 12px 12px 8px;padding-top:max(12px,env(safe-area-inset-top));border-bottom:1px solid var(--line);background:var(--card);flex-shrink:0;align-items:center;gap:8px;display:flex}.chat-icon{min-width:44px;height:44px;color:var(--text);background:0 0;border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.chat-icon:active{background:var(--light)}.chat-avatar{border:1px solid var(--line);background:var(--light);width:42px;height:42px;color:var(--primary);border-radius:15px;flex-shrink:0;place-items:center;display:grid}.chat-heading{text-align:left;min-width:0;color:var(--text);background:0 0;flex:1;padding:0 0 0 3px}.chat-heading strong{white-space:nowrap;align-items:center;gap:6px;font-size:16px;line-height:1.5;display:flex;overflow:hidden}.chat-heading span{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;max-width:100%;font-size:11px;display:block;overflow:hidden}.chat-connection{background:var(--light);color:var(--muted);flex-shrink:0;align-items:center;gap:6px;padding:7px 16px;font-size:11px;display:flex}.chat-connection svg{flex-shrink:0}.chat-connection span{flex:1}.chat-connection .text-button{padding:0}.chat-scroll{overscroll-behavior:contain;overflow-anchor:none;scrollbar-width:thin;-webkit-overflow-scrolling:touch;outline:none;flex:1;min-height:0;padding:0 20px;overflow:hidden auto}.chat-empty{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:17px;min-height:100%;padding:32px 0;display:flex}.chat-welcome-orb{background:radial-gradient(circle at 30% 20%,var(--lavender),var(--light));border:1px solid var(--line);width:76px;height:76px;color:var(--primary);border-radius:26px;place-items:center;margin-bottom:6px;display:grid;transform:rotate(-7deg);box-shadow:0 12px 40px #164e3c0a}.chat-welcome-orb svg{transform:rotate(7deg)}.chat-empty h1{letter-spacing:-.5px;font-size:25px}.chat-empty p{color:var(--muted);font-size:13px;line-height:1.85}.chat-empty small{color:var(--muted);font-size:10px}.chat-starters{flex-direction:column;gap:9px;width:100%;max-width:320px;margin:6px 0;display:flex}.chat-starters button{border:1px solid var(--line);background:var(--card);color:var(--text);text-align:left;border-radius:15px;justify-content:space-between;align-items:center;padding:15px;font-size:13px;display:flex}.chat-starters svg{color:var(--muted);transform:rotate(45deg)}.chat-older{min-height:44px;color:var(--muted);background:var(--light);border-radius:12px;align-items:center;gap:7px;margin:14px auto 0;padding:8px 14px;font-size:12px;display:flex}.chat-turn{padding-top:22px}.chat-date{text-align:center;color:var(--muted);opacity:.8;margin-bottom:18px;font-size:10px}.chat-user{background:var(--primary);color:#fff;overflow-wrap:anywhere;border-radius:20px 20px 5px;width:-moz-fit-content;width:fit-content;max-width:88%;margin-left:auto;padding:13px 16px;font-size:15px;line-height:1.7;box-shadow:0 3px 12px #164e3c08}.chat-user-text{white-space:pre-wrap;-webkit-user-select:text;user-select:text}.chat-message-sources{border-top:1px solid #ffffff30;flex-direction:column;gap:6px;margin-top:10px;padding-top:10px;display:flex}.chat-message-sources span{overflow-wrap:anywhere;color:#ffffffb8;align-items:center;gap:5px;font-size:11px;display:flex}.chat-message-sources svg{flex-shrink:0}.chat-assistant{min-width:0;margin-top:23px;padding-bottom:8px}.chat-speaker{align-items:center;gap:8px;margin-bottom:13px;font-size:12px;display:flex}.chat-speaker strong{text-overflow:ellipsis;white-space:nowrap;max-width:50%;font-weight:600;overflow:hidden}.chat-mini-avatar{background:var(--light);width:25px;height:25px;color:var(--primary);border:1px solid var(--line);border-radius:9px;place-items:center;display:grid}.chat-live-label{color:var(--muted);white-space:nowrap;align-items:center;gap:4px;margin-left:auto;font-size:10px;display:flex}.chat-answer{-webkit-user-select:text;user-select:text;position:relative}.chat-answer .markdown{overflow-wrap:anywhere;min-width:0;font-size:15px;line-height:1.9}.chat-answer .markdown>:first-child{margin-top:0}.chat-answer .markdown>:last-child{margin-bottom:0}.chat-answer .markdown pre{white-space:pre;overscroll-behavior-x:contain;border-radius:13px;max-width:100%;padding:15px;font-size:12px;line-height:1.8;overflow-x:auto}.chat-answer .markdown 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