*,:before,:after{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:Noto Sans SC,DM Sans,system-ui,sans-serif;font-size:15px;line-height:1.55}:root{--bg:#0c0e12;--bg-elevated:#141821;--bg-input:#1a1f2a;--border:#ffffff14;--fg:#e8eaef;--fg-muted:#8b93a5;--accent:#3dd6c6;--accent-dim:#3dd6c626;--user-bubble:#1e2633;--assistant-bubble:#12161d;--danger:#f87171}button,input,textarea{font:inherit}button{cursor:pointer}.app{flex-direction:column;max-width:720px;height:100%;margin:0 auto;padding:0 16px 16px;display:flex}.header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:14px 0 10px;display:flex}.brand{align-items:baseline;gap:10px;display:flex}.brand-mark{background:linear-gradient(135deg, var(--accent), #7c3aed);border-radius:50%;width:10px;height:10px;box-shadow:0 0 12px #3dd6c673}.brand h1{letter-spacing:.04em;color:var(--fg);margin:0;font-size:1.25rem;font-weight:600}.brand-sub{color:var(--fg-muted);font-size:.75rem;font-weight:500}.header-actions{gap:8px;display:flex}.btn{border:1px solid var(--border);background:var(--bg-elevated);color:var(--fg);border-radius:10px;padding:8px 14px;font-size:.875rem;font-weight:500;transition:background .15s,border-color .15s}.btn:hover:not(:disabled){background:var(--bg-input);border-color:#ffffff1f}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.ghost{background:0 0}.btn.primary{background:var(--accent-dim);color:#b6f7ef;border-color:#3dd6c659}.btn.primary:hover:not(:disabled){background:#3dd6c638}.btn.secondary{color:var(--danger);background:#f8717114;border-color:#f8717159}.btn.tool{padding:8px 12px;font-size:.8125rem}.btn.link{color:var(--accent);background:0 0;border:none;padding:0 0 0 8px;display:inline}.banner.error{color:#fecaca;background:#f871711f;border:1px solid #f8717140;border-radius:10px;margin-top:10px;padding:10px 12px;font-size:.875rem}.main{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.messages{scroll-behavior:smooth;flex:1;padding:16px 0 120px;overflow-y:auto}.empty-hint{color:var(--fg-muted);text-align:left;margin:24px 0 0;font-size:.9rem;line-height:1.65}.thinking-block{background:#0003;border:1px solid #3dd6c633;border-radius:10px;margin-bottom:10px;overflow:hidden}.thinking-block summary{cursor:pointer;color:var(--fg-muted);padding:8px 10px;font-size:.75rem;font-weight:600;list-style:none}.thinking-block summary::-webkit-details-marker{display:none}.thinking-text{color:var(--fg-muted);white-space:pre-wrap;word-break:break-word;max-height:240px;margin:0;padding:0 10px 10px;font-family:ui-monospace,Noto Sans SC,sans-serif;font-size:.8125rem;line-height:1.5;overflow-y:auto}.bubble-row{margin-bottom:14px;display:flex}.bubble-row.user{justify-content:flex-end}.bubble-row.assistant{justify-content:flex-start}.bubble{border:1px solid var(--border);border-radius:16px;max-width:92%;padding:12px 14px}.bubble-row.user .bubble{background:var(--user-bubble);border-color:#ffffff0f}.bubble-row.assistant .bubble{background:var(--assistant-bubble)}.thumb-strip{flex-wrap:wrap;gap:8px;margin-bottom:10px;display:flex}.thumb{object-fit:cover;border:1px solid var(--border);border-radius:10px;max-width:160px;max-height:160px}.bubble-text{white-space:pre-wrap;word-break:break-word;font-size:.9375rem}.composer{background:linear-gradient(to top, var(--bg) 70%, transparent);pointer-events:none;width:100%;max-width:720px;padding:0 16px 16px;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.composer-inner{pointer-events:auto;background:var(--bg-elevated);border:1px solid var(--border);border-radius:16px;padding:10px 12px;box-shadow:0 -8px 32px #00000059}.pending-strip{pointer-events:auto;flex-wrap:wrap;gap:8px;margin-bottom:8px;display:flex}.pending-item{position:relative}.pending-thumb{object-fit:cover;border:1px solid var(--border);border-radius:10px;width:56px;height:56px}.pending-remove{background:var(--danger);color:#fff;cursor:pointer;pointer-events:auto;border:none;border-radius:50%;width:22px;height:22px;font-size:14px;line-height:1;position:absolute;top:-6px;right:-6px}.input{width:100%;color:var(--fg);resize:none;background:0 0;border:none;min-height:44px;padding:4px 2px}.input::placeholder{color:var(--fg-muted)}.input:focus{outline:none}.think-toggle{color:var(--fg-muted);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:6px;margin-right:auto;font-size:.8125rem;display:inline-flex}.think-toggle input{accent-color:var(--accent);width:16px;height:16px}.composer-tools{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;margin-top:8px;display:flex}.hidden-input{opacity:0;pointer-events:none;width:0;height:0;position:absolute}.modal-backdrop{z-index:40;pointer-events:auto;background:#0000008c;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal{background:var(--bg-elevated);border:1px solid var(--border);text-align:left;border-radius:16px;width:100%;max-width:460px;max-height:min(90vh,720px);padding:20px;overflow-y:auto}.modal h2{color:var(--fg);margin:0 0 16px;font-size:1.1rem;font-weight:600}.section-title{color:var(--fg-muted);text-transform:uppercase;letter-spacing:.06em;margin:18px 0 10px;font-size:.8125rem;font-weight:600}.modal h2+.section-title{margin-top:0}.field.row{flex-direction:row;justify-content:space-between;align-items:center;gap:12px}.field.row input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent)}.field-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:12px;display:grid}.field.small span{font-size:.75rem}.field.small input{padding:8px 10px;font-size:.875rem}@media (width<=520px){.field-grid{grid-template-columns:1fr}}.rag-toolbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;display:flex}.rag-meta{color:var(--fg-muted);font-size:.75rem}.doc-list{border:1px solid var(--border);border-radius:10px;max-height:180px;margin:0 0 16px;padding:0;list-style:none;overflow-y:auto}.doc-row{border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:8px 10px;font-size:.8125rem;display:flex}.doc-row:last-child{border-bottom:none}.doc-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--fg);flex:1;overflow:hidden}.doc-bytes{color:var(--fg-muted);flex-shrink:0;font-size:.75rem}.btn.link.danger{color:var(--danger);padding:0 4px}.field{flex-direction:column;gap:8px;margin-bottom:12px;display:flex}.field span{color:var(--fg-muted);font-size:.8125rem}.field input{border:1px solid var(--border);background:var(--bg-input);color:var(--fg);border-radius:10px;padding:10px 12px}.field input:focus{border-color:#3dd6c659;outline:2px solid #3dd6c640}.field .textarea{border:1px solid var(--border);background:var(--bg-input);width:100%;min-height:100px;color:var(--fg);resize:vertical;border-radius:10px;padding:10px 12px;line-height:1.5}.field .textarea:focus{border-color:#3dd6c659;outline:2px solid #3dd6c640}.field .textarea::placeholder{color:var(--fg-muted);opacity:.75}.hint{color:var(--fg-muted);margin:0 0 14px;font-size:.75rem;line-height:1.5}.health{color:var(--fg-muted);flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:18px;font-size:.8125rem;display:flex}.dot{border-radius:50%;width:8px;height:8px}.dot.ok{background:#34d399;box-shadow:0 0 8px #34d39980}.dot.bad{background:var(--danger)}.health-err{text-overflow:ellipsis;max-width:100%;font-size:.75rem;overflow:hidden}.modal-actions{justify-content:flex-end;gap:10px;display:flex}