:root{
  color-scheme:light;
  --bg:#f4f5f8;
  --surface:#ffffff;
  --surface-strong:#eef0f5;
  --line:#d6dae4;
  --line-soft:#e4e7ee;
  --text:#1d2433;
  --muted:#687286;
  --soft:#8a93a6;
  --accent:#536dce;
  --user-bubble:#2f69bd;
  --sidebar-width:248px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{min-width:280px;background:var(--bg)}
body{
  min-height:100vh;
  min-height:100svh;
  margin:0;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(700px 420px at 50% -180px,rgba(112,125,214,.14),transparent 72%),
    radial-gradient(circle at 1px 1px,rgba(64,77,112,.12) 1px,transparent 1.15px);
  background-size:auto,24px 24px;
  background-position:center top,0 0;
  background-attachment:fixed;
  font-family:var(--font);
  -webkit-font-smoothing:antialiased;
}
button,select,textarea{font:inherit}
button,a,select{cursor:pointer}
a{color:inherit}
button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid rgba(158,167,255,.7);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.workspace-app{min-height:100vh;min-height:100svh}
.workspace-content{min-height:100vh;min-height:100svh}
.workspace-sidebar{display:none}
.workspace-header{
  position:sticky;
  z-index:30;
  top:0;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  width:min(1160px,calc(100% - 48px));
  margin:0 auto;
  padding:22px 0;
  background:linear-gradient(180deg,var(--bg) 0%,rgba(244,245,248,.96) 72%,rgba(244,245,248,0) 100%);
}
.workspace-brand{display:inline-flex;flex-direction:column;text-decoration:none;font-size:11px;font-weight:700;letter-spacing:.12em}
.workspace-brand small{margin-top:2px;color:var(--soft);font-size:6.79px;font-weight:600;letter-spacing:.22em}
.workspace-back{justify-self:end;color:var(--muted);font-size:10px;letter-spacing:.04em;text-decoration:none;transition:color .2s ease}
.workspace-back:hover{color:var(--text)}
.workspace-main{width:min(820px,calc(100% - 40px));margin:clamp(110px,22vh,220px) auto 48px}
.workspace-welcome{text-align:center}
.workspace-welcome h1{margin:0;font-size:clamp(18px,2.5vw,24px);font-weight:570;line-height:1.2;letter-spacing:.1em}
.prompt-window{display:flex;min-height:178px;flex-direction:column;margin-top:32px;padding:10px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.94);box-shadow:0 18px 50px rgba(79,90,124,.08);transition:border-color .2s ease}
.prompt-window:focus-within{border-color:#aab5dc;box-shadow:0 18px 50px rgba(79,90,124,.12)}
.prompt-window textarea{display:block;width:100%;min-height:86px;max-height:240px;padding:14px 15px 8px;resize:none;border:0;outline:0;color:var(--text);background:transparent;font-size:15px;font-weight:500;line-height:1.75}
.prompt-window textarea::placeholder{color:#929aaa}
.attachment-list{display:flex;flex-wrap:wrap;gap:6px;padding:2px 9px 5px}
.attachment-chip{display:inline-flex;align-items:center;gap:6px;max-width:220px;padding:5px 7px 5px 9px;border:1px solid var(--line-soft);border-radius:8px;color:#626c80;background:#f5f6fa;font-size:9px}
.attachment-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.attachment-remove{display:grid;place-items:center;width:16px;height:16px;padding:0;border:0;border-radius:50%;color:#7e8798;background:transparent;font-size:12px;line-height:1}
.attachment-remove:hover{color:#27334e;background:#e5e9f3}
.prompt-controls{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-top:auto;padding:8px 8px 4px}
.control-cluster{display:flex;align-items:flex-end;flex-wrap:wrap;gap:8px}
.file-input{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.attachment-button{display:grid;place-items:center;flex:0 0 auto;width:32px;height:32px;border:1px solid var(--line);border-radius:9px;color:#58647d;background:#f7f8fb;font-size:18px;font-weight:300;line-height:1;transition:border-color .2s,background .2s,color .2s}
.attachment-button:hover{border-color:#aab5dc;color:#293858;background:#eef1fb}
.file-input:focus-visible+.attachment-button{outline:2px solid rgba(158,167,255,.7);outline-offset:3px}
.model-control select{
  height:32px;
  padding:0 30px 0 11px;
  border:1px solid var(--line);
  border-radius:9px;
  color:#47526a;
  background:#f7f8fb;
  font-size:10px;
}
.mode-switch{display:flex;width:176px;gap:3px;padding:3px;border:1px solid var(--line-soft);border-radius:999px;background:#e9ebf1}
.mode-option{flex:1;height:34px;padding:0 13px;border:0;border-radius:999px;color:var(--soft);background:transparent;font-size:11px;font-weight:600;letter-spacing:.06em;transition:color .2s,background .2s}
.mode-option:hover{color:#34415f}
.mode-option.is-active{color:#26334f;background:#fff;box-shadow:0 2px 7px rgba(63,74,108,.14)}
.format-switch{display:flex;gap:3px;padding:3px;border:1px solid var(--line-soft);border-radius:10px;background:#edf0f5}
.format-option{height:26px;padding:0 10px;border:0;border-radius:7px;color:var(--soft);background:transparent;font-size:10px;transition:color .2s,background .2s}
.format-option:hover{color:#34415f}
.format-option.is-active{color:#26334f;background:#fff;box-shadow:0 1px 4px rgba(63,74,108,.12)}
.action-buttons{display:flex;align-items:flex-end;flex:0 0 auto;gap:8px}
.voice-button,.send-button{display:grid;place-items:center;align-self:flex-end;flex:0 0 auto;width:30px;height:30px;border-radius:50%;line-height:1;transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease}
.voice-button{padding:0;border:1px solid var(--line);color:#69748b;background:#f7f8fb;transform:translateY(3px)}
.voice-button svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7}
.voice-button:hover{border-color:#aab5dc;color:#26334f;background:#eef1fb;transform:translateY(2px)}
.voice-button.is-listening{border-color:#7488df;color:#26334f;background:#e4e9ff;box-shadow:0 0 0 4px rgba(83,109,206,.12)}
.voice-button:disabled{cursor:wait;opacity:.55}
.send-button{padding:0;border:0;color:#fff;background:#536dce;font-size:15px;transform:translateY(3px);box-shadow:0 3px 8px rgba(83,109,206,.22)}
.send-button:hover{transform:translateY(2px);background:#435cba}
.prompt-hint{align-self:flex-end;margin:0 0 0 4px;color:#7e8798;font-size:9px;line-height:1.2;white-space:nowrap}
.conversation{width:100%;margin:0 auto}
.message-list{display:grid;gap:30px}
.message{min-width:0}
.message-user{justify-self:end;width:fit-content;max-width:min(78%,620px);padding:14px 16px;border:1px solid rgba(39,90,176,.18);border-radius:16px 16px 5px 16px;color:#fff;background:var(--user-bubble);box-shadow:0 5px 14px rgba(47,105,189,.14)}
.message-user .message-meta{display:none}
.message-user .message-body{color:#fff;font-weight:500}
.message-assistant{justify-self:start;width:100%;padding:3px 0}
.message-meta{margin-bottom:8px;color:#7a8497;font-size:9px;font-weight:650;letter-spacing:.1em;text-transform:uppercase}
.message-body{margin:0;color:#34405a;font-size:15px;font-weight:500;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere}
.message-assistant .message-body{color:#4d5870;font-weight:500}
.assistant-content{width:100%}
.assistant-prose{max-width:100%}
.assistant-progress{display:flex;align-items:center;gap:8px;min-height:30px;color:#7a8497;font-size:12px;font-weight:500;line-height:1.4}
.assistant-progress-dots{display:inline-flex;align-items:center;gap:3px}
.assistant-progress-dots i{display:block;width:4px;height:4px;border-radius:50%;background:#8492ba;animation:assistant-dot 1.2s ease-in-out infinite}
.assistant-progress-dots i:nth-child(2){animation-delay:.15s}
.assistant-progress-dots i:nth-child(3){animation-delay:.3s}
@keyframes assistant-dot{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}
.assistant-sources{margin-top:16px;padding:12px 14px;border:1px solid #dfe3ec;border-radius:12px;background:#f8f9fc}
.assistant-sources-heading{color:#5d6983;font-size:11px;font-weight:650;letter-spacing:.04em}
.assistant-sources-query{margin-top:4px;color:#8a93a6;font-size:10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.assistant-source-list{display:grid;gap:10px;margin:10px 0 0;padding-left:20px;color:#6b7690}
.assistant-source-list li{padding-left:2px;font-size:11px;line-height:1.55}
.assistant-source-list a{color:#4566b8;font-weight:600;text-decoration:none}
.assistant-source-list a:hover{text-decoration:underline}
.assistant-source-list time{color:#929aaa;font-size:9px}
.assistant-source-list p{margin:3px 0 0;color:#7b8598;font-size:10px;line-height:1.55}
.assistant-output-card{position:relative;width:100%;padding:36px 12px 12px;border:1px solid #d7dce8;border-radius:14px;background:rgba(255,255,255,.94);box-shadow:0 10px 28px rgba(66,77,110,.07)}
.assistant-output-scroll{max-height:min(52vh,460px);overflow:auto;padding:0 8px 0 2px;scrollbar-color:#b1b9ca transparent;scrollbar-width:thin}
.assistant-output-card.is-long{border-color:#c5cee7;background:#fff}
.assistant-output-card.is-code .message-body{color:#27334c;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,"Cascadia Code","PingFang SC",monospace;font-size:13px;font-weight:500;line-height:1.75}
.assistant-output-card.is-code .message-body{white-space:pre;overflow-wrap:normal;min-width:max-content}
.assistant-actions{position:absolute;top:9px;right:10px;display:flex;align-items:center;gap:8px}
.code-language{color:#7b87a1;font-size:8px;font-weight:700;letter-spacing:.1em}
.copy-output{height:24px;padding:0 9px;border:1px solid #d0d6e3;border-radius:7px;color:#65718a;background:#f4f6fa;font-size:9px;line-height:22px;transition:color .2s ease,border-color .2s ease,background .2s ease}
.copy-output:hover:not(:disabled){border-color:#9ba9d6;color:#293858;background:#eaf0ff}
.copy-output.is-copied{border-color:#9ba9d6;color:#35498c;background:#e5ebff}
.copy-output:disabled{cursor:default;opacity:.42}
.assistant-file-actions{display:flex;justify-content:flex-start;margin-top:12px}
.message-files{display:flex;flex-wrap:wrap;gap:6px;margin-top:11px}
.message-files span{max-width:210px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:5px 8px;border:1px solid #d7dce8;border-radius:7px;color:#6d7890;background:#f5f6fa;font-size:8px}
.assistant-indicator{display:inline-block;width:6px;height:6px;margin-right:8px;border-radius:50%;background:#8b97b0;vertical-align:1px}
body.has-conversation .workspace-main{min-height:100svh;margin:0 auto;padding:62px 0 210px}
body.has-conversation .workspace-welcome{display:none}
body.has-conversation .prompt-window{position:fixed;z-index:20;left:50%;bottom:max(18px,env(safe-area-inset-bottom));width:min(820px,calc(100% - 40px));margin:0;transform:translateX(-50%)}
body.has-conversation .workspace-footer{display:none}
.workspace-footer{display:flex;justify-content:space-between;gap:20px;width:min(1160px,calc(100% - 48px));margin:0 auto;padding:0 0 24px;color:#7b869a;font-size:8px;letter-spacing:.1em}
[hidden]{display:none!important}
@media(prefers-reduced-motion:reduce){.assistant-progress-dots i{animation:none;opacity:.65}}
@media(min-width:901px){
  .workspace-sidebar{
    position:fixed;
    z-index:40;
    inset:0 auto 0 0;
    display:flex;
    width:var(--sidebar-width);
    flex-direction:column;
    padding:26px 16px 20px;
    overflow-y:auto;
    border-right:1px solid rgba(62,76,112,.12);
    background:rgba(249,250,252,.92);
    backdrop-filter:blur(18px);
  }
  .sidebar-brand{display:flex;flex-direction:column;gap:6px;padding:2px 12px;color:#27334d;text-decoration:none}
  .sidebar-brand span{font-size:16px;font-weight:700;letter-spacing:.14em}
  .sidebar-brand small{color:#7a8498;font-size:7.76px;font-weight:600;letter-spacing:.12em}
  .sidebar-nav{display:grid;gap:5px;margin-top:42px}
  .sidebar-action{display:flex;align-items:center;gap:12px;width:100%;min-height:42px;padding:0 12px;border:0;border-radius:10px;color:#66718a;background:transparent;font-size:14px;font-weight:500;line-height:1.4;text-align:left;text-decoration:none;transition:color .2s ease,background .2s ease}
  .sidebar-action:hover{color:#293858;background:rgba(83,109,206,.08)}
  .sidebar-action svg{width:17px;height:17px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.65}
  .recent-section{margin-top:34px}
  .recent-section h2{margin:0;padding:0 12px;color:#7c879b;font-size:11px;font-weight:650;letter-spacing:.15em}
  .recent-list{display:grid;gap:3px;margin-top:10px}
  .recent-item{display:block;width:100%;padding:10px 12px;overflow:hidden;border:0;border-radius:9px;color:#707b92;background:transparent;font-size:12px;font-weight:500;line-height:1.5;text-align:left;text-overflow:ellipsis;white-space:nowrap}
  .recent-item:hover,.recent-item.is-current{color:#293858;background:rgba(83,109,206,.09)}
  .recent-empty{margin:0;padding:10px 12px;color:#9aa3b3;font-size:12px;font-weight:500}
  .sidebar-footer{margin-top:auto;padding:30px 12px 0;color:#8d97aa;font-size:8px;letter-spacing:.14em}
  .workspace-content{margin-left:var(--sidebar-width)}
  .workspace-header{width:min(820px,calc(100% - 64px));grid-template-columns:1fr auto}
  .workspace-header .workspace-brand{display:none}
  .workspace-main{width:min(820px,calc(100% - 64px))}
  .workspace-footer{width:min(820px,calc(100% - 64px))}
  body.has-conversation .prompt-window{left:calc(var(--sidebar-width) + (100% - var(--sidebar-width))/2);width:min(820px,calc(100% - var(--sidebar-width) - 64px))}
}
@media(max-width:620px){
  .workspace-header{width:calc(100% - 28px);gap:10px;padding:14px 0}
  .workspace-brand{font-size:10.5px;font-weight:600;line-height:14.5px;letter-spacing:.13em}
  .workspace-brand small{margin-top:0;font-size:6.65px;font-weight:400;line-height:7.6px;letter-spacing:.1em}
  .mode-switch{width:142px}
  .mode-option{height:31px;padding:0 8px;font-size:10px}
  .workspace-back{font-size:9px}
  .workspace-main{width:calc(100% - 28px);margin:clamp(48px,12vh,86px) auto 34px}
  .workspace-welcome h1{font-size:20px}
  .prompt-window{margin-top:27px;border-radius:17px}
  .prompt-controls{align-items:flex-end}
  .control-cluster{display:grid;grid-template-columns:30px minmax(0,170px);grid-template-rows:32px 32px;align-items:end;gap:6px;min-width:0}
  .attachment-button{grid-column:1;grid-row:2}
  .model-control{grid-column:2;grid-row:2;min-width:0}
  .model-control select{width:100%;max-width:none}
  .format-switch{grid-column:1 / 3;grid-row:1;justify-self:start}
  .prompt-hint{display:none}
  body.has-conversation .workspace-main{padding:36px 0 190px}
  body.has-conversation .prompt-window{bottom:max(10px,env(safe-area-inset-bottom));width:calc(100% - 28px)}
  .message-user{width:fit-content;max-width:88%}
  .message-assistant{width:100%}
  .workspace-footer{width:calc(100% - 28px)}
}
@media(max-width:390px){
  .workspace-header{grid-template-columns:1fr 132px 1fr;gap:5px}
  .mode-switch{width:132px}
  .workspace-brand{font-size:10.5px}
  .workspace-back{max-width:66px;text-align:right;line-height:1.35}
}
@media(max-width:410px){
  .prompt-controls{align-items:flex-end;flex-direction:row;gap:10px}
  .control-cluster{grid-template-columns:30px minmax(0,1fr);flex:1}
  .attachment-button{width:30px;height:30px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}