:root{--ink:#10113f;--muted:#74788d;--line:#e6e8f1;--panel:#f4f5f9;--purple:#7448ff;--blue:#16b7e8;--white:#fff;--shadow:0 16px 50px rgba(27,25,76,.10)}
*{box-sizing:border-box}html,body{height:100%}body{margin:0;color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;background:#fff}button,textarea{font:inherit}.workspace{height:100vh;display:grid;grid-template-columns:270px minmax(0,1fr);overflow:hidden}.sidebar{display:flex;flex-direction:column;padding:16px 12px;background:var(--panel);border-right:1px solid var(--line)}.sidebar-top{height:44px;display:flex;align-items:center;justify-content:space-between;padding:0 8px 0 6px}.app-brand{display:flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none;font-size:20px;font-weight:750;letter-spacing:-.04em}.app-brand img{width:36px;height:26px;object-fit:contain}.icon-button{border:0;background:transparent;color:#65697d;cursor:pointer;font-size:20px;border-radius:9px;padding:7px}.icon-button:hover{background:#e8e9ef}.sidebar-close,.menu-button{display:none}.new-session{height:44px;margin:18px 4px 16px;padding:0 13px;display:flex;align-items:center;gap:10px;border:1px solid #dddfe9;background:#fff;border-radius:13px;color:var(--ink);font-weight:620;cursor:pointer;box-shadow:0 2px 7px rgba(20,18,70,.03)}.new-session:hover{border-color:#cbc7fa}.plus{font-size:21px;font-weight:400}.history{flex:1;overflow:auto}.nav-label{margin:17px 12px 7px;color:#9699aa;font-size:11px;font-weight:650}.history-item{width:100%;min-height:46px;padding:9px 12px;border:0;border-radius:10px;background:transparent;color:#33364f;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:8px;cursor:pointer}.history-item span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item small{color:#9b9dac;font-size:10px}.history-item:hover,.history-item.active{background:#e9eaf1}.sidebar-bottom{border-top:1px solid #dedfe7;padding-top:10px}.sidebar-bottom>a{height:36px;display:flex;align-items:center;gap:8px;padding:0 11px;color:#606476;text-decoration:none;font-size:12px}.status-dot{width:7px;height:7px;border-radius:50%;background:#21bf73;box-shadow:0 0 0 3px rgba(33,191,115,.12)}.profile{width:100%;display:flex;align-items:center;gap:10px;padding:9px;border:0;background:transparent;border-radius:11px;text-align:left;cursor:pointer}.profile:hover{background:#e8e9ef}.avatar{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;color:#fff;background:linear-gradient(135deg,var(--purple),var(--blue));font-weight:700}.profile strong,.profile small{display:block}.profile strong{font-size:12px}.profile small{margin-top:2px;color:#9295a4;font-size:10px}.main-panel{min-width:0;display:grid;grid-template-rows:64px 1fr auto;position:relative}.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid rgba(230,232,241,.75)}.model-picker,.share-button{border:0;background:transparent;color:var(--ink);cursor:pointer}.model-picker{font-size:15px;font-weight:650;padding:9px 10px;border-radius:10px}.model-picker:hover{background:#f4f5f8}.model-picker span{margin-left:5px;color:#888b9d}.top-actions{display:flex;align-items:center;gap:10px}.compute-chip{padding:7px 10px;border:1px solid var(--line);border-radius:99px;color:#6b6e81;font-size:11px}.compute-chip i{display:inline-block;width:6px;height:6px;margin-right:6px;border-radius:50%;background:#26bd78}.share-button{padding:8px 13px;border:1px solid var(--line);border-radius:9px;font-size:12px}.conversation{overflow:auto;padding:26px 24px 30px}.welcome{max-width:760px;min-height:calc(100vh - 270px);margin:0 auto;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.welcome>img{width:72px;height:50px;object-fit:contain}.welcome h1{margin:22px 0 8px;font-size:30px;letter-spacing:-.045em}.welcome>p{max-width:590px;margin:0;color:var(--muted);font-size:14px;line-height:1.7}.suggestions{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:32px}.suggestions button{padding:16px 17px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--ink);text-align:left;cursor:pointer;font-weight:620}.suggestions button:hover{border-color:#cfc9ff;box-shadow:0 7px 25px rgba(48,39,120,.07);transform:translateY(-1px)}.suggestions small{display:block;margin-top:6px;color:#9295a5;font-size:11px;font-weight:400}.message{max-width:760px;margin:0 auto 24px;display:flex;gap:13px;line-height:1.65;font-size:14px}.message.user{justify-content:flex-end}.bubble{max-width:80%;padding:12px 15px;border-radius:16px;background:#f1f2f6}.message.assistant .bubble{padding:2px 0;background:transparent}.assistant-mark{flex:0 0 auto;width:31px;height:31px;padding:5px;border:1px solid var(--line);border-radius:9px;object-fit:contain}.analysis-card{margin-top:13px;padding:14px;border:1px solid var(--line);border-radius:13px;background:#fafafe}.analysis-card header{display:flex;justify-content:space-between;font-size:12px;font-weight:650}.analysis-card small{color:#27a66a}.meter{height:5px;margin:12px 0 7px;border-radius:5px;background:#e8e9ef;overflow:hidden}.meter i{display:block;width:72%;height:100%;background:linear-gradient(90deg,var(--purple),var(--blue))}.composer-wrap{width:min(780px,calc(100% - 34px));margin:0 auto 14px}.attachment{width:max-content;max-width:100%;margin-bottom:7px;padding:8px 10px;display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:11px;background:#fff;box-shadow:var(--shadow)}.audio-icon{width:31px;height:31px;display:grid;place-items:center;border-radius:8px;color:var(--purple);background:#f0ebff}.attachment strong,.attachment small{display:block;max-width:280px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.attachment strong{font-size:11px}.attachment small{color:#9194a3;font-size:9px;margin-top:2px}.attachment button{border:0;background:none;color:#8e91a0;cursor:pointer}.composer{min-height:58px;padding:9px 10px;display:flex;align-items:flex-end;gap:8px;border:1px solid #dfe1ea;border-radius:18px;background:#fff;box-shadow:0 7px 30px rgba(21,20,67,.08)}.composer:focus-within{border-color:#c3bafd;box-shadow:0 8px 30px rgba(75,57,196,.11)}.attach-button,.send-button{flex:0 0 auto;width:38px;height:38px;border:0;border-radius:11px;cursor:pointer}.attach-button{background:#f2f3f7;color:#666a7d;font-size:22px}.send-button{background:var(--ink);color:#fff;font-size:20px}.send-button:disabled{opacity:.35}.composer textarea{flex:1;max-height:140px;padding:9px 4px;border:0;outline:0;resize:none;color:var(--ink);line-height:1.45}.composer textarea::placeholder{color:#a2a4b0}.disclaimer{margin:8px 0 0;text-align:center;color:#a0a2af;font-size:9px}.evidence-panel{display:none;width:330px;border-left:1px solid var(--line);background:#fbfbfd}.evidence-head{height:64px;padding:0 15px 0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);font-size:13px;font-weight:650}.empty-evidence{height:calc(100% - 64px);padding:35px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#9496a5;font-size:12px;line-height:1.6}.mini-wave{font-size:46px;color:var(--purple)}
@media(min-width:1380px){.workspace.evidence-open{grid-template-columns:270px minmax(0,1fr) 330px}.workspace.evidence-open .evidence-panel{display:block}}
@media(max-width:800px){.workspace{display:block}.sidebar{position:fixed;inset:0 auto 0 0;width:min(86vw,300px);z-index:20;transform:translateX(-105%);transition:.25s;box-shadow:var(--shadow)}.sidebar.open{transform:none}.sidebar-close,.menu-button{display:block}.topbar{padding:0 12px}.topbar>.menu-button{display:block}.compute-chip{display:none}.conversation{padding:18px 14px}.welcome{min-height:calc(100vh - 235px)}.welcome h1{font-size:25px}.suggestions{grid-template-columns:1fr}.composer-wrap{width:calc(100% - 20px)}.disclaimer{display:none}}