:root{--bg:#f6f8fa;--bg-2:#eef1f5;--panel:#fff;--panel-2:#f3f5f8;--text:#1a2230;--text-2:#5b6472;--text-3:#6b7280;--line:#e3e8ef;--accent:#0ea5e9;--accent-2:#0284c7;--btn:#0369a1;--accent-soft:#0ea5e91f;--user-bubble:#0ea5e9;--user-text:#fff;--danger:#dc2626;--ok:#16a34a;--shadow:0 2px 12px #0f172a14;--radius:14px;--sidebar-w:280px;--composer-pad:env(safe-area-inset-bottom,0px)}[data-theme=dark]{--bg:#0d1117;--bg-2:#131a23;--panel:#161d27;--panel-2:#1c2531;--text:#e6edf3;--text-2:#9aa7b5;--text-3:#8b98a8;--line:#26303d;--accent:#38bdf8;--accent-2:#0ea5e9;--btn:#0369a1;--accent-soft:#38bdf824;--user-bubble:#0e7490;--user-text:#fff;--shadow:0 2px 12px #0006}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overscroll-behavior:none;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}input,select,textarea{color:inherit;font-family:inherit}select{background:var(--panel-2);border:1px solid var(--line);color:var(--text);border-radius:8px;padding:6px 8px;font-size:13px}.app{height:100dvh;display:flex;overflow:hidden}.main{flex:1;min-width:0;display:flex}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--panel);border-right:1px solid var(--line);z-index:30;flex-direction:column;display:flex}.sidebar-head{border-bottom:1px solid var(--line);padding:14px 14px 8px}.brand{align-items:center;gap:10px;display:flex}.brand-logo{color:#fff;background:linear-gradient(135deg,#0284c7,#0369a1);border-radius:11px;place-items:center;width:40px;height:40px;font-size:20px;font-weight:700;display:grid}.brand-text{flex-direction:column;line-height:1.25;display:flex}.brand-name{font-size:15px;font-weight:700}.brand-sub{color:var(--text-3);font-size:11px}.new-chat-btn{background:var(--btn);color:#fff;border-radius:10px;width:100%;margin-top:10px;padding:9px;font-size:14px;font-weight:600}.new-chat-btn:active{background:var(--accent-2)}.chat-list{flex:1;padding:8px;overflow-y:auto}.chat-list-empty{color:var(--text-3);text-align:center;padding:24px 8px;font-size:13px}.chat-item{cursor:pointer;border-radius:10px;margin-bottom:4px;padding:10px 12px}.chat-item:hover{background:var(--panel-2)}.chat-item.is-active{background:var(--accent-soft)}.chat-item-title{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.chat-item-preview{color:var(--text-3);white-space:nowrap;text-overflow:ellipsis;margin-top:2px;font-size:12px;overflow:hidden}.chat-item-meta{color:var(--text-3);align-items:center;gap:8px;margin-top:4px;font-size:11px;display:flex}.chat-item-del{color:var(--text-3);border-radius:6px;margin-left:auto;padding:2px 6px;font-size:12px}.chat-item-del:hover{background:var(--danger);color:#fff}.sidebar-foot{border-top:1px solid var(--line);padding:10px 14px}.foot-btn{color:var(--text-2);border-radius:8px;padding:6px 10px;font-size:13px}.foot-btn:hover{background:var(--panel-2)}.scrim{z-index:25;background:#0006;position:fixed;inset:0}@media (width<=860px){.sidebar{transition:transform .22s;position:fixed;top:0;bottom:0;left:0;transform:translate(-105%)}.sidebar-visible .sidebar{box-shadow:var(--shadow);transform:translate(0)}}.chat-view{flex-direction:column;flex:1;min-width:0;height:100dvh;display:flex}.chat-head{border-bottom:1px solid var(--line);background:var(--panel);align-items:center;gap:8px;padding:10px 14px;display:flex}.menu-btn{display:none}.chat-title-wrap{flex:1;min-width:0}.chat-title{white-space:nowrap;text-overflow:ellipsis;font-size:15px;font-weight:700;overflow:hidden}.chat-sub{color:var(--text-3);font-size:11px}.head-tools{align-items:center;gap:6px;display:flex}.head-select{max-width:140px}@media (width<=860px){.menu-btn{display:block}.model-select{display:none}.ws-select{max-width:110px}}.msg-scroll{flex:1;padding:16px 12px 8px;overflow-y:auto}.msg-list{flex-direction:column;gap:16px;max-width:780px;margin:0 auto;display:flex}.msg{gap:10px;display:flex}.msg-avatar{background:var(--panel-2);border:1px solid var(--line);border-radius:50%;flex-shrink:0;place-items:center;width:32px;height:32px;font-size:16px;display:grid}.msg.is-user{flex-direction:row-reverse}.msg-body{flex-direction:column;gap:4px;min-width:0;max-width:82%;display:flex}.bubble{border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);overflow-wrap:break-word;word-break:break-word;padding:10px 14px;font-size:14.5px;line-height:1.65}.msg.is-user .bubble{background:var(--user-bubble);color:var(--user-text);border:none;border-top-right-radius:4px}.bubble.is-error{background:#dc262614;border-color:#dc262659}.error-text{color:var(--danger);font-size:13.5px}.muted{color:var(--text-3);font-size:13px}.streaming-cursor{color:var(--accent);animation:1s steps(2,end) infinite blink}@keyframes blink{50%{opacity:0}}.msg-meta{color:var(--text-3);align-items:center;gap:8px;padding:0 4px;font-size:11px;display:flex}.is-user .msg-body{align-items:flex-end}.streaming-label{color:var(--accent-2)}.user-text{white-space:pre-wrap}.stream-block{flex-direction:column;gap:8px;display:flex}.attachments{flex-wrap:wrap;gap:8px;display:flex}.attach-img{flex-direction:column;gap:3px;width:130px;display:flex}.attach-img img{object-fit:cover;cursor:pointer;border:1px solid var(--line);border-radius:10px;width:130px;height:110px}.attach-img .attach-name{color:var(--text-2);white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.is-user .attach-img .attach-name{color:#ffffffd9}.attach-file{background:var(--panel-2);border-radius:10px;align-items:center;gap:8px;max-width:240px;padding:7px 11px;font-size:12.5px;display:flex}.is-user .attach-file{background:#ffffff2e}.attach-meta{flex-direction:column;min-width:0;display:flex}.attach-name{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.attach-size{opacity:.75;font-size:11px}.activity{flex-direction:column;gap:4px;display:flex}.activity-toggle{color:var(--text-2);background:var(--panel-2);border:1px solid var(--line);border-radius:999px;align-self:flex-start;align-items:center;gap:6px;padding:5px 10px;font-size:12px;display:inline-flex}.activity-dot{background:var(--ok);border-radius:50%;width:7px;height:7px;animation:1.6s infinite blink}.activity-items{flex-direction:column;gap:3px;margin-top:2px;display:flex}.activity-item{color:var(--text-2);align-items:center;gap:6px;font-size:12px;display:flex}.activity-ico{font-size:13px}.activity-cmd{background:var(--panel-2);white-space:nowrap;text-overflow:ellipsis;border-radius:6px;max-width:100%;padding:3px 8px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11.5px;overflow:hidden}.thinking{color:var(--text-3);align-items:center;gap:8px;padding:2px 4px;font-size:12.5px;display:flex}.thinking-spinner{border:2px solid var(--accent-soft);border-top-color:var(--accent);border-radius:50%;width:12px;height:12px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.md>:first-child{margin-top:0}.md>:last-child{margin-bottom:0}.md h1,.md h2,.md h3{margin:14px 0 6px;font-size:1.15em}.md h1{font-size:1.3em}.md p{margin:8px 0}.md ul,.md ol{margin:8px 0;padding-left:22px}.md li{margin:3px 0}.md code{background:var(--panel-2);border-radius:5px;padding:1.5px 5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em}.is-user .md code{background:#fff3}.md pre{margin:10px 0}.md table{border-collapse:collapse;margin:10px 0;font-size:13px}.md th,.md td{border:1px solid var(--line);padding:5px 9px}.md blockquote{border-left:3px solid var(--accent);color:var(--text-2);margin:8px 0;padding:2px 12px}.md img{border-radius:10px;max-width:100%}.md a{color:var(--accent-2)}.code-block{border:1px solid var(--line);border-radius:10px;margin:10px 0;overflow:hidden}.code-head{background:var(--panel-2);color:var(--text-3);justify-content:space-between;align-items:center;padding:5px 12px;font-family:ui-monospace,Menlo,monospace;font-size:11.5px;display:flex}.code-copy{color:var(--text-2);border-radius:6px;padding:2px 8px;font-size:11.5px}.code-copy:hover{background:var(--line)}.code-block pre{background:var(--bg);margin:0;padding:12px;overflow-x:auto}.code-block code{background:0 0;padding:0;font-size:12.5px;line-height:1.6}.composer-wrap{padding:6px 12px calc(10px + var(--composer-pad));background:var(--panel);border-top:1px solid var(--line);position:relative}.composer{max-width:780px;margin:0 auto}.composer-row{align-items:flex-end;gap:6px;display:flex}.icon-btn{width:38px;height:38px;color:var(--text-2);background:var(--panel-2);border:1px solid var(--line);border-radius:10px;flex-shrink:0;place-items:center;font-size:17px;display:grid}.icon-btn.is-active{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}.icon-btn:disabled{opacity:.45}.composer-ta{resize:none;border:1px solid var(--line);background:var(--panel-2);border-radius:12px;outline:none;flex:1;min-height:40px;max-height:160px;padding:10px 12px;font-size:15px;line-height:1.5}.composer-ta:focus{border-color:var(--accent)}.composer-ta:disabled{opacity:.7}.voice-area{flex-shrink:0;align-items:flex-end;gap:6px;display:flex}.record-btn{background:var(--panel-2);border:1px solid var(--line);width:40px;height:40px;color:var(--text-2);border-radius:50%;place-items:center;font-size:18px;display:grid}.record-btn.is-recording{background:var(--danger);color:#fff;border-color:var(--danger);animation:1.2s infinite pulse}.record-btn:disabled{opacity:.4}@keyframes pulse{50%{transform:scale(1.12)}}.mic-btn.is-listening{color:#fff;background:#15803d;border-color:#15803d;animation:1.2s infinite pulse}.send-btn{background:var(--btn);color:#fff;border-radius:12px;height:40px;padding:0 18px;font-size:14.5px;font-weight:700}.send-btn:active{background:var(--accent-2)}.send-btn.is-busy{opacity:.55;background:var(--text-3);cursor:not-allowed}.stop-btn{height:40px;color:var(--danger);background:#dc26261f;border-radius:12px;padding:0 14px;font-size:13.5px;font-weight:600}.record-banner{background:var(--panel-2);border:1px solid var(--line);width:100%;max-width:780px;color:var(--text);text-align:left;border-radius:10px;align-items:center;gap:8px;margin:0 auto 8px;padding:8px 12px;font-size:13.5px;display:flex}.record-banner:active{background:var(--line)}.rec-dot{background:var(--danger);border-radius:50%;width:10px;height:10px;animation:1s infinite blink}.composer-flash{max-width:780px;color:var(--accent-2);margin:0 auto 6px;font-size:12.5px}.pending-files{gap:8px;max-width:780px;margin:0 auto 8px;padding-bottom:2px;display:flex;overflow-x:auto}.pf-chip{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;flex-shrink:0;align-items:center;gap:8px;max-width:200px;padding:6px 10px;display:flex}.pf-thumb{object-fit:cover;border-radius:7px;width:34px;height:34px}.pf-ico{font-size:18px}.pf-meta{flex-direction:column;min-width:0;display:flex}.pf-name{white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.pf-size{color:var(--text-3);font-size:11px}.pf-remove{color:var(--text-3);border-radius:6px;flex-shrink:0;padding:2px 5px;font-size:15px}.pf-remove:hover{background:var(--danger);color:#fff}.attach-area{position:relative}.attach-menu{z-index:40;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px;flex-direction:column;min-width:170px;padding:6px;display:flex;position:absolute;bottom:46px;left:0}.attach-menu button{text-align:left;border-radius:8px;padding:9px 12px;font-size:14px}.attach-menu button:hover{background:var(--panel-2)}.attach-hint{color:var(--text-3);border-top:1px dashed var(--line);margin-top:4px;padding:8px 12px 4px;font-size:11px}.chat-empty{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:10px;padding:24px;display:flex;position:relative}.empty-menu-btn{position:absolute;top:14px;left:14px}.empty-new-btn{background:var(--btn);color:#fff;border-radius:12px;margin-top:8px;padding:12px 34px;font-size:15px;font-weight:700}.empty-new-btn:active{background:var(--accent-2)}.empty-logo{color:#fff;width:72px;height:72px;box-shadow:var(--shadow);background:linear-gradient(135deg,#0284c7,#0369a1);border-radius:20px;place-items:center;font-size:34px;display:grid}.chat-empty h2{margin:4px 0 0;font-size:20px}.chat-empty p{color:var(--text-2);max-width:380px;margin:0;font-size:14px}.empty-workspace{color:var(--text-2);flex-direction:column;gap:6px;margin-top:12px;font-size:13px;display:flex}.empty-workspace select{min-width:220px}.empty-hints{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:14px;display:flex}.empty-hints span{background:var(--panel);border:1px solid var(--line);color:var(--text-2);border-radius:999px;padding:6px 14px;font-size:12.5px}.boot-screen{height:100dvh;color:var(--text-2);flex-direction:column;justify-content:center;align-items:center;gap:14px;font-size:14px;display:flex}.boot-spinner{border:3px solid var(--accent-soft);border-top-color:var(--accent);border-radius:50%;width:30px;height:30px;animation:.8s linear infinite spin}.login-screen{place-items:center;height:100dvh;padding:24px;display:grid}.login-card{background:var(--panel);border:1px solid var(--line);width:100%;max-width:340px;box-shadow:var(--shadow);border-radius:18px;flex-direction:column;gap:10px;padding:30px 26px;display:flex}.login-logo{color:#fff;background:linear-gradient(135deg,#38bdf8,#0ea5e9);border-radius:15px;align-self:center;place-items:center;width:56px;height:56px;font-size:26px;display:grid}.login-card h1{text-align:center;margin:4px 0 0;font-size:19px}.login-sub{color:var(--text-3);text-align:center;margin:0 0 8px;font-size:13px}.login-input{border:1px solid var(--line);background:var(--panel-2);border-radius:10px;outline:none;padding:11px 13px;font-size:15px}.login-input:focus{border-color:var(--accent)}.login-err{color:var(--danger);font-size:12.5px}.login-btn{background:var(--btn);color:#fff;border-radius:10px;padding:11px;font-size:15px;font-weight:700}.login-btn:disabled{opacity:.5}.modal-mask{z-index:60;background:#00000073;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal{background:var(--panel);width:100%;max-width:440px;max-height:82dvh;box-shadow:var(--shadow);border-radius:16px;overflow-y:auto}.modal-head{justify-content:space-between;align-items:center;padding:16px 20px 8px;display:flex}.modal-head h3{margin:0;font-size:16px}.modal-close{color:var(--text-3);border-radius:8px;padding:4px 8px;font-size:16px}.modal-close:hover{background:var(--panel-2)}.modal-body{flex-direction:column;gap:16px;padding:6px 20px 16px;display:flex}.setting{flex-direction:column;gap:6px;display:flex}.setting label{color:var(--text-2);font-size:13px;font-weight:600}.setting select,.setting input{border:1px solid var(--line);background:var(--panel-2);border-radius:10px;outline:none;padding:9px 11px;font-size:14px}.setting-desc{color:var(--text-3);font-size:12px}.about{color:var(--text-2);font-size:12.5px;line-height:1.8}.seg{gap:6px;display:flex}.seg button{border:1px solid var(--line);background:var(--panel-2);border-radius:9px;flex:1;padding:8px;font-size:13px}.seg button.is-on{background:var(--btn);color:#fff;border-color:var(--btn)}.modal-foot{border-top:1px solid var(--line);justify-content:flex-end;padding:12px 20px 18px;display:flex}.danger-btn{color:var(--danger);border:1px solid #dc262666;border-radius:9px;padding:7px 14px;font-size:13.5px}.danger-btn:hover{background:#dc262614}.toast{z-index:80;color:#fff;box-shadow:var(--shadow);white-space:nowrap;text-overflow:ellipsis;background:#0f172aeb;border-radius:999px;max-width:90vw;padding:9px 18px;font-size:13px;position:fixed;bottom:90px;left:50%;overflow:hidden;transform:translate(-50%)}[data-theme=dark] .toast{color:#111;background:#ffffffeb}