:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f4f6f4;--paper:#fff;--ink:#1e2a25;--muted:#5d6d65;--faint:#98a69e;--line:#e6ebe7;--line-strong:#d3dcd6;--brand:#1c6a4f;--brand-strong:#14523c;--tint:#e8f1ec;--danger:#b05247;--danger-tint:#fbeae7;--focus:#1c6a4f59;--shadow-card:0 1px 2px #1730250d, 0 24px 60px -40px #17302559;--shadow-bar:0 10px 30px -24px #17302566}*{box-sizing:border-box}html{height:100%}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:0;padding:0}button:disabled{cursor:not-allowed}a{color:inherit;text-decoration:none}img{display:block}::selection{background:#cfe3d8}:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.splash{min-height:100svh;color:var(--muted);text-align:center;align-content:center;place-items:center;gap:14px;font-size:13.5px;display:grid}.splash img{background:var(--tint);border-radius:24px;width:72px;height:72px}.login-page{background:var(--bg);place-items:center;min-height:100svh;padding:24px;display:grid}.login-card{background:var(--paper);border:1px solid var(--line);width:min(100%,408px);box-shadow:var(--shadow-card);text-align:center;border-radius:24px;padding:44px 40px 34px}.login-card>img{background:var(--tint);border-radius:50%;width:84px;height:84px;margin:0 auto 22px}.login-card h1{letter-spacing:-.02em;margin:0;font-size:26px;font-weight:800}.login-card .lead{max-width:30ch;color:var(--muted);margin:10px auto 0;font-size:14px;line-height:1.75}.login-card form{text-align:left;gap:14px;margin-top:28px;display:grid}.login-card label{color:var(--muted);gap:7px;font-size:13px;font-weight:600;display:grid}.login-card input{border:1px solid var(--line-strong);background:var(--paper);width:100%;color:var(--ink);border-radius:12px;outline:none;padding:12px 14px;font-size:14px;transition:border-color .15s,box-shadow .15s}.login-card input::placeholder{color:var(--faint)}.login-card input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--focus)}.login-card .error{text-align:left;width:auto;margin:-2px 0 0;font-size:13px}.login-card form>button{background:var(--brand);color:#fff;border-radius:12px;min-height:46px;margin-top:4px;font-size:14.5px;font-weight:700;transition:background .15s}.login-card form>button:hover:not(:disabled){background:var(--brand-strong)}.login-card form>button:disabled{background:var(--line-strong)}.login-card>a{color:var(--faint);margin-top:24px;font-size:13px;transition:color .15s;display:block}.login-card>a:hover{color:var(--brand)}.app-shell{background:var(--bg);grid-template-columns:276px minmax(0,1fr);height:100svh;display:grid}.sidebar{background:var(--paper);border-right:1px solid var(--line);flex-direction:column;min-height:0;padding:16px 12px 12px;display:flex}.brand{letter-spacing:.01em;align-items:center;gap:10px;padding:6px 10px 18px;font-size:18px;font-weight:800;display:flex}.brand img{background:var(--tint);border-radius:10px}.new-chat{border:1px solid var(--line-strong);background:var(--paper);width:100%;color:var(--brand);border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:10px 14px;font-size:13.5px;font-weight:700;transition:background .15s,border-color .15s;display:flex}.new-chat svg{flex:none;width:15px;height:15px}.new-chat:hover{background:var(--tint);border-color:#bcd5c6}.new-chat:active{transform:translateY(1px)}.history-title{color:var(--faint);letter-spacing:.1em;padding:20px 12px 8px;font-size:11px;font-weight:700}.history{flex:1;min-height:0;margin:0 -4px;padding:0 4px;overflow:auto}.history::-webkit-scrollbar{width:6px}.history::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px}.history>p{color:var(--faint);margin:10px 12px;font-size:12.5px;line-height:1.7}.history-row{border-radius:10px;grid-template-columns:minmax(0,1fr) 30px;align-items:center;display:grid}.history-row>button:first-child{min-width:0;color:var(--muted);text-align:left;text-overflow:ellipsis;white-space:nowrap;border-radius:10px;padding:9px 10px;font-size:13px;transition:color .15s,background .15s;overflow:hidden}.history-row:hover>button:first-child{color:var(--ink)}.history-row.active>button:first-child{color:var(--brand);font-weight:700}.history-row.active{background:var(--tint)}.delete-chat{width:28px;height:28px;color:var(--faint);opacity:0;border-radius:8px;place-items:center;font-size:16px;line-height:1;transition:opacity .12s,background .12s,color .12s;display:grid}.history-row:hover .delete-chat,.history-row:focus-within .delete-chat{opacity:1}.delete-chat:hover{background:var(--danger-tint);color:var(--danger)}.download-app{background:var(--tint);border-radius:12px;align-items:center;gap:10px;margin:12px 2px 8px;padding:10px 12px;transition:background .15s;display:flex}.download-app>svg{width:20px;height:20px;color:var(--brand);flex:none}.download-app>span{gap:1px;min-width:0;display:grid}.download-app strong{color:var(--brand);font-size:13px;font-weight:750}.download-app small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.download-app:hover{background:#dfebe4}.account{border-top:1px solid var(--line);grid-template-columns:30px minmax(0,1fr) auto;align-items:center;gap:9px;margin-top:12px;padding:12px 6px 2px;display:grid}.account .avatar{background:var(--brand);color:#fff;border-radius:50%;place-items:center;width:28px;height:28px;font-size:12px;font-weight:800;display:grid}.account 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18px;overflow:auto}.message-area::-webkit-scrollbar{width:8px}.message-area::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:99px}.message-area::-webkit-scrollbar-thumb:hover{background:var(--faint)}.status{color:var(--faint);text-align:center;padding:9vh 0;font-size:13px}.error{width:min(760px,100% - 32px);color:var(--danger);text-align:center;margin:10px auto 0;font-size:13px}.welcome{text-align:center;width:min(620px,100%);margin:auto;padding:8vh 0 5vh}.welcome>img{background:var(--tint);border-radius:50%;width:84px;height:84px;margin:0 auto 24px}.welcome h2{letter-spacing:-.03em;margin:0;font-size:clamp(26px,3.4vw,36px);font-weight:800}.welcome .lead{max-width:46ch;color:var(--muted);margin:14px auto 0;font-size:14.5px;line-height:1.8}.suggestions{gap:10px;max-width:500px;margin:34px auto 0;display:grid}.suggestions button{border:1px solid var(--line);background:var(--paper);color:var(--ink);text-align:left;border-radius:13px;justify-content:space-between;align-items:center;gap:14px;padding:13px 16px;font-size:14px;line-height:1.5;transition:border-color .15s,box-shadow .15s;display:flex}.suggestions button:hover{box-shadow:var(--shadow-bar);border-color:#bcd5c6}.suggestions button:active{transform:translateY(1px)}.suggestions button svg{width:15px;height:15px;color:var(--brand);opacity:0;flex:none;transition:opacity .15s,transform .15s;transform:translate(-4px)}.suggestions button:hover svg{opacity:1;transform:none}.message-list{flex-direction:column;gap:20px;width:min(760px,100%);margin:0 auto;display:flex}.message{flex-direction:column;align-items:flex-start;gap:6px;display:flex}.message.user{align-items:flex-end}.bubble{max-width:min(92%,640px);padding:12px 16px;font-size:15px;line-height:1.85}.message.assistant .bubble{background:var(--paper);border:1px solid var(--line);border-radius:16px 16px 16px 4px}.message.user .bubble{background:var(--brand);color:#fff;border-radius:16px 16px 4px}.message-text{overflow-wrap:anywhere}.message-text>:first-child{margin-top:0}.message-text>:last-child{margin-bottom:0}.message-text p{margin:0}.message-text p+p{margin-top:.55em}.message-text h1,.message-text h2,.message-text h3,.message-text h4{margin:.9em 0 .35em;font-weight:750;line-height:1.4}.message-text h1{font-size:1.25em}.message-text h2{font-size:1.16em}.message-text h3{font-size:1.08em}.message-text ul,.message-text ol{margin:.45em 0;padding-left:1.4em}.message-text li{margin:.18em 0}.message-text li>p{margin:0}.message-text blockquote{border-left:3px solid var(--line-strong);color:var(--muted);margin:.6em 0;padding:.1em 0 .1em 1em}.message-text hr{background:var(--line);border:0;height:1px;margin:1em 0}.message-text code{background:#eef2ee;border-radius:6px;padding:.15em .4em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,Liberation Mono,monospace;font-size:.88em}.message-text pre{background:#f1f4f1;border-radius:10px;margin:.6em 0;padding:12px 14px;overflow:auto}.message-text pre code{background:0 0;padding:0;font-size:13px;line-height:1.6}.message-text table{border-collapse:collapse;max-width:100%;margin:.6em 0;font-size:13.5px;display:block;overflow:auto}.message-text th,.message-text td{border:1px solid var(--line-strong);text-align:left;padding:6px 10px}.message-text a{color:var(--brand);text-underline-offset:3px;text-decoration:underline}.message.user .message-text a{color:#fff;opacity:.92;text-decoration:underline}.message.user .message-text code{background:#ffffff29}.message.user .message-text pre{background:#0000001f}.message.user .message-text pre code{background:0 0}.message.user .message-text blockquote{color:#ffffffd9;border-left-color:#fff6}.message.user .message-text hr{background:#ffffff4d}.citation{background:var(--tint);color:var(--brand);border-radius:6px;align-items:baseline;margin:0 2px;padding:0 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.selected{background:var(--tint);color:var(--brand);font-weight:700}.sources{max-width:min(92%,640px);margin-top:12px;font-size:12.5px}.sources summary{color:var(--faint);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:6px;align-items:center;padding:4px;transition:color .15s;display:inline-flex}.sources summary::-webkit-details-marker{display:none}.sources summary:hover{color:var(--brand)}.source-list{gap:8px;margin-top:8px;display:grid}.source-list a{border:1px solid var(--line);background:var(--paper);border-radius:12px;gap:3px;padding:11px 13px;transition:border-color .15s;display:grid}.source-list a:hover{border-color:#bcd5c6}.source-list span{color:var(--brand);font-size:11px;font-weight:800}.source-list strong{color:var(--ink);font-size:13px;font-weight:650}.source-list small{color:var(--faint);text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.composer{background:var(--paper);border:1px solid var(--line-strong);width:min(820px,100% - 32px);box-shadow:var(--shadow-bar);border-radius:18px;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:8px;margin:4px auto 0;padding:8px 8px 8px 18px;transition:border-color .15s,box-shadow .15s;display:grid}.composer:focus-within{border-color:var(--brand);box-shadow:var(--shadow-bar), 0 0 0 3px var(--focus)}.composer textarea{resize:vertical;width:100%;max-height:180px;color:var(--ink);background:0 0;border:0;outline:0;padding:10px 0;font-size:15px;line-height:1.55;display:block}.composer textarea::placeholder{color:var(--faint)}.composer textarea:disabled{opacity:.6}.composer>div{align-items:center;gap:6px;display:flex}.stop{background:var(--danger-tint);height:38px;color:var(--danger);white-space:nowrap;border-radius:12px;align-items:center;padding:0 16px;font-size:13px;font-weight:700;display:inline-flex}.stop:hover{filter:brightness(.97)}.send{background:var(--brand);color:#fff;border-radius:12px;place-items:center;width:38px;height:38px;transition:background .15s;display:grid}.send svg{width:17px;height:17px}.send:hover:not(:disabled){background:var(--brand-strong)}.send:disabled{color:#fff;background:#d7ded9}.notice{width:min(820px,100% - 32px);color:var(--faint);text-align:center;margin:10px auto 16px;font-size:11px;line-height:1.6}.app-prompt{left:14px;right:14px;bottom:calc(12px + env(safe-area-inset-bottom,0px));z-index:60;border:1px solid var(--line-strong);background:var(--paper);border-radius:18px;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;padding:14px 14px 14px 16px;animation:.28s ease-out prompt-in;display:grid;position:fixed;box-shadow:0 18px 46px -18px #17302573}@keyframes prompt-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.app-prompt-icon{background:var(--tint);width:46px;height:46px;color:var(--brand);border-radius:14px;place-items:center;display:grid}.app-prompt-icon svg{width:23px;height:23px}.app-prompt-body{justify-items:start;gap:4px;min-width:0;padding-right:22px;display:grid;position:relative}.app-prompt-body strong{letter-spacing:-.01em;font-size:15px;font-weight:800}.app-prompt-body p{color:var(--muted);margin:0;font-size:12.5px;line-height:1.5}.app-prompt-body a{background:var(--brand);color:#fff;border-radius:10px;align-items:center;min-height:34px;margin-top:4px;padding:0 18px;font-size:13px;font-weight:700;display:inline-flex}.app-prompt-body a:active{transform:translateY(1px)}.app-prompt-close{width:26px;height:26px;color:var(--faint);border-radius:50%;place-items:center;font-size:18px;line-height:1;transition:color .15s,background .15s;display:grid;position:absolute;top:6px;right:6px}.app-prompt-close:hover{background:var(--danger-tint);color:var(--danger)}@media (max-width:760px){.app-shell{height:auto;display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);flex-direction:row;align-items:center;gap:8px;height:56px;padding:0 88px 0 10px;display:flex;position:relative;overflow:hidden}.brand{flex:none;gap:8px;padding:0;font-size:16px}.brand img{border-radius:8px;width:28px;height:28px}.new-chat{white-space:nowrap;width:auto;height:34px;padding:0 12px;font-size:12px}.history-title,.history,.download-app{display:none}.account{border:0;justify-content:flex-end;align-items:center;gap:4px;margin:0;padding:0;display:flex;position:absolute;inset:0 6px 0 auto}.account strong{display:none}.account .avatar{width:26px;height:26px;font-size:11px}.account>button{padding:6px;font-size:12px}.chat-main{height:calc(100svh - 56px)}.chat-header{min-height:52px;padding:0 16px}.chat-header h1{max-width:70vw;font-size:14px}.message-area{padding:26px 16px 10px}.message-list{gap:18px}.bubble{max-width:94%}.welcome{margin:0;padding:5vh 0 3vh}.welcome h2{font-size:26px}.suggestions{margin-top:26px}.composer{border-radius:16px;width:calc(100% - 20px)}.notice{width:calc(100% - 20px);margin:8px auto 12px}.login-card{border-radius:22px;padding:38px 28px 30px}}