:root{color-scheme:light dark;--brand: #0f766e;--brand-strong: light-dark(#0b5c56, #0d9488);--primary: light-dark(#0f766e, #2dd4bf);--primary-weak: light-dark(#e7f2f0, rgba(45, 212, 191, .12));--focus-ring: light-dark(rgba(15, 118, 110, .18), rgba(45, 212, 191, .28));--bg: light-dark(#f5f6fa, #0e1114);--panel: light-dark(#ffffff, #161a1f);--panel-2: light-dark(#f6f7f9, #1d2229);--line: light-dark(#e5e7eb, #272e37);--text: light-dark(#1f2329, #e6eaf0);--muted: light-dark(#6b7280, #98a2b0);--faint: light-dark(#9ca3af, #68727f);--red: light-dark(#d92d20, #f87171);--red-bg: light-dark(#feeceb, rgba(248, 113, 113, .14));--orange: light-dark(#c2410c, #fb923c);--orange-bg: light-dark(#fff0e4, rgba(251, 146, 60, .14));--blue: light-dark(#1d4ed8, #60a5fa);--blue-bg: light-dark(#e8effd, rgba(96, 165, 250, .14));--green: light-dark(#0f9d6e, #34d399);--green-bg: light-dark(#e6f7f0, rgba(52, 211, 153, .14));--purple: light-dark(#7c3aed, #a78bfa);--purple-bg: light-dark(#f1e9fe, rgba(167, 139, 250, .14));--gray: light-dark(#6b7280, #9aa3b1);--gray-bg: light-dark(#f0f1f3, rgba(148, 163, 184, .14));--danger-solid: light-dark(#d92d20, #dc2626);--sk: light-dark(#edeff2, #212730);--overlay: light-dark(rgba(15, 20, 25, .45), rgba(0, 0, 0, .62));--toast-bg: light-dark(rgba(31, 35, 41, .92), rgba(58, 66, 76, .96));--radius: 10px;--shadow: light-dark(0 4px 16px rgba(15, 23, 32, .08), 0 6px 20px rgba(0, 0, 0, .45));--shadow-sm: light-dark(0 1px 2px rgba(15, 23, 32, .05), 0 1px 3px rgba(0, 0, 0, .35))}:root[data-theme=light]{color-scheme:light}:root[data-theme=dark]{color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font:14px/1.5 -apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;transition:background-color .2s,color .2s}button{font:inherit;-webkit-appearance:none;-moz-appearance:none;appearance:none}input,textarea,select{-webkit-appearance:none;-moz-appearance:none;appearance:none;-webkit-box-shadow:none}@media(min-width:1024px){*{scrollbar-width:thin;scrollbar-color:var(--line) transparent}}.muted{color:var(--muted)}.workspace{height:100dvh;display:flex;background:var(--bg)}.pane{height:100%;min-width:0;display:flex;flex-direction:column;flex:1}@media(max-width:1023.98px){.pane-off{display:none}}@media(min-width:1024px){.pane-inbox{flex:0 0 340px;width:340px;border-right:1px solid var(--line)}.back-link{display:none}}.app-shell{display:flex;flex-direction:column;height:100%;width:100%;min-height:0;background:var(--panel)}.page-center{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:24px;text-align:center}.app-header{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--panel);flex-shrink:0}.app-header-title{font-size:16px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.app-header-main{min-width:0;flex:1}.app-header-sub{display:flex;gap:6px;flex-wrap:wrap;margin-top:2px}.app-header-right{margin-left:auto;display:flex;align-items:center;gap:8px}.app-header-user{font-size:12px;max-width:140px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.back-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;color:var(--text);padding:6px;border-radius:8px;line-height:0}.back-link:active{background:var(--gray-bg)}@media(hover:hover){.back-link:hover{background:var(--gray-bg)}}.btn{border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:8px;padding:8px 14px;cursor:pointer;transition:opacity .15s,background .15s,border-color .15s,filter .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:5px 12px;font-size:13px}.btn-block{width:100%}.btn-icon{padding:6px;display:inline-flex;align-items:center;justify-content:center;line-height:0}.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:not(:disabled):active{background:var(--brand-strong);border-color:var(--brand-strong)}.btn-danger{background:var(--danger-solid);border-color:var(--danger-solid);color:#fff;box-shadow:var(--shadow-sm)}.btn-ghost{background:transparent}.btn-ghost:not(:disabled):active{background:var(--gray-bg)}@media(hover:hover){.btn-primary:not(:disabled):hover,.btn-danger:not(:disabled):hover{filter:brightness(1.06)}.btn-ghost:not(:disabled):hover{background:var(--gray-bg)}.btn:not(.btn-primary):not(.btn-danger):not(.btn-ghost):not(:disabled):hover{background:var(--panel-2)}}.badge{display:inline-flex;align-items:center;font-size:11px;font-weight:500;line-height:18px;padding:0 7px;border-radius:9px;white-space:nowrap}.badge-red{color:var(--red);background:var(--red-bg)}.badge-orange{color:var(--orange);background:var(--orange-bg)}.badge-blue{color:var(--blue);background:var(--blue-bg)}.badge-green{color:var(--green);background:var(--green-bg)}.badge-purple{color:var(--purple);background:var(--purple-bg)}.badge-gray{color:var(--gray);background:var(--gray-bg)}.badge-plain{color:var(--muted);background:var(--gray-bg)}.login-page{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:20px}.login-card{width:100%;max-width:360px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px 24px;box-shadow:var(--shadow)}.login-brand{width:46px;height:46px;border-radius:13px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:14px;box-shadow:var(--shadow-sm)}.login-title{font-size:20px;font-weight:700;color:var(--primary)}.login-sub{font-size:13px;color:var(--muted);margin:4px 0 18px}.field{display:block;margin-bottom:14px}.field-label{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}.input{width:100%;border:1px solid var(--line);border-radius:8px;padding:9px 12px;font:inherit;font-size:16px;outline:none;background:var(--panel);color:var(--text)}.input:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--focus-ring)}.remember-row{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);margin-bottom:14px;-webkit-user-select:none;user-select:none}.form-error{color:var(--red);background:var(--red-bg);border-radius:8px;font-size:13px;padding:8px 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var(--primary)}@media(hover:hover){.conv-item-active:hover{background:var(--primary-weak)}}.conv-avatar{position:relative;width:38px;height:38px;border-radius:50%;background:var(--primary-weak);color:var(--primary);font-size:15px;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0;-webkit-user-select:none;user-select:none}.unread-dot{position:absolute;top:-1px;right:-1px;width:9px;height:9px;border-radius:50%;background:var(--red);border:2px solid var(--panel)}.conv-main{flex:1;min-width:0}.conv-row{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.conv-name{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-time{font-size:11px;color:var(--faint);flex-shrink:0}.conv-summary{font-size:12px;color:var(--muted);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-meta{display:flex;gap:6px;margin-top:5px;flex-wrap:wrap}.conv-claim{flex-shrink:0}.sk{background:var(--sk);border-radius:6px;animation:sk-pulse 1.3s ease-in-out infinite}.sk-avatar{width:38px;height:38px;border-radius:50%;flex-shrink:0}.sk-line{height:12px;margin:4px 0}.sk-line-dim{height:10px;opacity:.6}.sk-bubble{height:40px;border-radius:12px}.conv-item-sk{pointer-events:none}.msgs-sk{display:flex;flex-direction:column;gap:10px}@keyframes sk-pulse{0%,to{opacity:1}50%{opacity:.45}}.chat-shell{background:var(--bg)}.action-bar{display:flex;gap:8px;padding:8px 14px;background:var(--panel);border-bottom:1px solid var(--line);overflow-x:auto;flex-shrink:0}.msgs-wrap{position:relative;flex:1;min-height:0;display:flex;flex-direction:column}.msgs{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}@media(min-width:1024px){.action-bar,.msgs,.typing-hint,.canned-panel,.composer{padding-inline:max(16px,calc((100% - 880px)/2))}}.msg{display:flex;flex-direction:column;max-width:min(82%,640px)}.msg-left{align-self:flex-start;align-items:flex-start}.msg-right{align-self:flex-end;align-items:flex-end}.msg-who{font-size:11px;color:var(--faint);margin-bottom:2px}.bubble{padding:8px 12px;border-radius:12px;font-size:14px;line-height:1.55;white-space:pre-wrap;word-break:break-word;box-shadow:var(--shadow-sm)}.bubble-user{background:var(--panel);border:1px solid var(--line);border-bottom-left-radius:4px}.bubble-ai{background:var(--primary-weak);color:var(--text);border-bottom-right-radius:4px}.bubble-human{background:var(--brand);color:#fff;border-bottom-right-radius:4px}.attachments{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.attach-img{width:88px;height:88px;object-fit:cover;border-radius:8px;border:1px solid var(--line);display:block}.attach-file{font-size:12px;color:var(--primary)}.jump-btn{position:absolute;bottom:12px;left:50%;transform:translate(-50%);display:inline-flex;align-items:center;gap:5px;padding:6px 13px;font-size:12px;color:var(--muted);background:var(--panel);border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);cursor:pointer;animation:rise-in .18s ease-out}.jump-btn-new{color:#fff;background:var(--brand);border-color:var(--brand)}@keyframes rise-in{0%{opacity:0;transform:translate(-50%,6px)}to{opacity:1;transform:translate(-50%)}}.typing-hint{height:18px;padding:0 14px;font-size:12px;color:var(--muted);opacity:0;transition:opacity .15s;flex-shrink:0}.typing-hint-on{opacity:1}.canned-panel{max-height:200px;overflow-y:auto;background:var(--panel);border-top:1px solid var(--line);flex-shrink:0}.canned-empty{padding:12px 14px;font-size:13px}.canned-item{display:block;width:100%;text-align:left;background:transparent;border:none;border-bottom:1px solid var(--line);padding:9px 14px;cursor:pointer;color:var(--text)}.canned-item:active{background:var(--primary-weak)}@media(hover:hover){.canned-item:hover{background:var(--primary-weak)}}.canned-title{display:block;font-size:13px;font-weight:600}.canned-preview{display:block;font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.composer{display:flex;align-items:flex-end;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:var(--panel);border-top:1px solid var(--line);flex-shrink:0}.composer .btn{height:42px;display:inline-flex;align-items:center;justify-content:center}.composer-input{flex:1;resize:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font:inherit;font-size:16px;line-height:1.5;outline:none;max-height:120px;background:var(--panel);color:var(--text)}.composer-input:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--focus-ring)}.composer-canned{padding:7px;width:42px}.composer-canned-on{background:var(--primary-weak);border-color:var(--primary);color:var(--primary)}.composer-hint{flex:1;text-align:center;font-size:13px;padding:6px 0}.desk-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px;background:var(--bg)}.desk-empty-icon{width:96px;height:96px;color:var(--faint);opacity:.5}.desk-empty-title{margin-top:18px;font-size:16px;font-weight:600;color:var(--muted)}.desk-empty-sub{margin-top:8px;font-size:13px;line-height:1.7;color:var(--faint);max-width:280px}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--overlay);display:flex;align-items:center;justify-content:center;padding:24px;z-index:100}.dialog{width:100%;max-width:320px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:var(--shadow);animation:dialog-in .16s ease-out}@keyframes dialog-in{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}.dialog-title{font-size:16px;font-weight:600}.dialog-body{font-size:13px;color:var(--muted);margin:8px 0 16px;line-height:1.6}.dialog-actions{display:flex;justify-content:flex-end;gap:8px}.toast-container{position:fixed;top:14px;left:0;right:0;display:flex;flex-direction:column;align-items:center;gap:8px;z-index:200;pointer-events:none}.toast{max-width:86vw;background:var(--toast-bg);color:#fff;font-size:13px;padding:8px 14px;border-radius:8px;box-shadow:var(--shadow);animation:toast-in .2s ease-out}.toast-success{background:#0f9d6e}.toast-error{background:#d92d20}.toast-out{opacity:0;transition:opacity .3s}@keyframes toast-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}