:root{--bg: #fff;--bg-muted: #f5f5f5;--fg: #1a1a1a;--fg-muted: #6b6b6b;--border: #e0e0e0;--accent: #0a7ea4;--error: #c53030}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg);color:var(--fg);line-height:1.5}.app{display:flex;min-height:100vh}.sidebar{width:260px;min-width:260px;background:var(--bg-muted);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:1rem 0}.sidebar-logo{font-size:1.25rem;font-weight:700;padding:0 1rem 1rem;border-bottom:1px solid var(--border);margin-bottom:1rem}.sidebar-new{margin:0 .75rem .75rem}.sidebar-new button{width:100%;padding:.6rem 1rem;border:1px solid var(--border);border-radius:8px;background:var(--bg);cursor:pointer;font-size:.9rem}.sidebar-new button:hover{background:var(--border)}.sidebar-list{flex:1;overflow-y:auto;padding:0 .5rem}.sidebar-list h3{font-size:.75rem;text-transform:uppercase;color:var(--fg-muted);margin:0 .5rem .5rem;font-weight:600}.sidebar-list a{display:block;padding:.5rem .75rem;border-radius:6px;color:var(--fg);text-decoration:none;font-size:.9rem;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-list a:hover{background:var(--border)}.sidebar-list a.active{background:var(--accent);color:#fff}.sidebar-footer{margin-top:auto;padding:1rem;border-top:1px solid var(--border)}.token-input{display:flex;flex-direction:column;gap:.5rem}.token-input label{font-size:.875rem;color:var(--fg-muted);font-weight:500}.token-input input{padding:.5rem;border:1px solid var(--border);border-radius:4px;background:var(--bg);color:var(--fg);font-size:.875rem}.token-input input:focus{outline:none;border-color:var(--accent)}.token-input button{padding:.5rem;background:var(--accent);color:#fff;border:none;border-radius:4px;font-size:.875rem;cursor:pointer;transition:background .2s}.token-input button:hover{background:#0a9ec4}.main-area{flex:1;display:flex;flex-direction:column;min-width:0}.chat-layout{flex:1;display:flex;min-height:0;gap:0}.chat-center{flex:1;display:flex;flex-direction:column;min-width:0;overflow:hidden}.chat-messages{flex:1;overflow-y:auto;padding:1.5rem}.chat-input-wrap{padding:1rem 1.5rem;border-top:1px solid var(--border);background:var(--bg)}.chat-input-row{display:flex;align-items:flex-end;gap:.5rem;max-width:800px;margin:0 auto}.chat-input-row textarea{flex:1;min-height:44px;max-height:160px;padding:.6rem .75rem;border:1px solid var(--border);border-radius:8px;font-size:.95rem;font-family:inherit;resize:none}.chat-input-row textarea:focus{outline:none;border-color:var(--accent)}.chat-input-row button{padding:.6rem 1rem;border:none;border-radius:8px;background:var(--accent);color:#fff;cursor:pointer;font-size:.9rem}.chat-input-row button:hover:not(:disabled){opacity:.9}.chat-input-row button:disabled{opacity:.5;cursor:not-allowed}.msg{display:flex;gap:.75rem;margin-bottom:1.25rem;max-width:800px;margin-left:auto;margin-right:auto}.msg.user{flex-direction:row-reverse}.msg-avatar{width:36px;height:36px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:600}.msg.user .msg-avatar{background:#0d9488;color:#fff}.msg.assistant .msg-avatar{background:var(--accent);color:#fff}.msg-body{flex:1;min-width:0}.msg-body img.msg-attachment{max-width:280px;max-height:200px;border-radius:8px;margin-bottom:.5rem;border:1px solid var(--border)}.msg-content{font-size:.95rem;white-space:pre-wrap;word-break:break-word}.preview-column{width:400px;min-width:400px;background:var(--bg-muted);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.parameters-column{width:300px;min-width:300px;background:var(--bg-muted);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.parameters-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1rem .75rem;border-bottom:1px solid var(--border)}.parameters-header h3{margin:0;font-size:1rem;font-weight:600}.export-btn{padding:.4rem .75rem;border:1px solid var(--border);border-radius:6px;background:var(--bg);cursor:pointer;font-size:.85rem;color:var(--fg);font-weight:500}.export-btn:hover:not(:disabled){background:var(--border)}.export-btn:disabled{opacity:.5;cursor:not-allowed}.parameters-content{flex:1;overflow-y:auto;padding:1rem;-webkit-user-select:none;user-select:none}.column-tabs{display:flex;gap:0;border-bottom:2px solid var(--border);background:var(--bg)}.column-tab{flex:1;padding:.75rem 0;border:none;background:none;cursor:pointer;font-size:.9rem;font-weight:500;color:var(--fg-muted);transition:color .2s}.column-tab:hover{color:var(--fg)}.column-tab.active{color:var(--accent);font-weight:600;border-bottom:2px solid var(--accent);margin-bottom:-2px}.column-content{flex:1;overflow-y:auto;padding:1rem}.upload-btn{padding:.5rem;border:1px solid var(--border);border-radius:6px;background:var(--bg);cursor:pointer;font-size:.85rem}.error-msg{color:var(--error);font-size:.9rem;margin-top:.5rem}.muted{color:var(--fg-muted);font-size:.9rem}.code-block{background:var(--bg);padding:1rem;border-radius:6px;border:1px solid var(--border);font-family:Courier New,monospace;font-size:.85rem;overflow-x:auto;max-height:600px;overflow-y:auto;white-space:pre;line-height:1.5}.hidden{position:absolute;width:.1px;height:.1px;opacity:0;overflow:hidden}.thinking-banner{margin-bottom:1.25rem;border:1px solid var(--accent);border-radius:8px;overflow:hidden;background:var(--bg)}.thinking-toggle-banner{width:100%;padding:.7rem 1rem;text-align:left;border:none;background:linear-gradient(135deg,var(--accent),#0d9488);cursor:pointer;font-size:.95rem;font-weight:700;color:#fff;display:flex;align-items:center;gap:.5rem}.thinking-toggle-banner:hover{opacity:.95}.thinking-icon{font-size:.8rem;display:inline-block;width:16px}.thinking-title{font-weight:700}.thinking-content-banner{padding:1rem 1.25rem;font-size:.9rem;white-space:pre-wrap;word-break:break-word;max-height:400px;overflow-y:auto;line-height:1.6;border-top:1px solid var(--border)}.streaming-output-banner{background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:1.5rem;box-shadow:0 1px 3px #0000000d}.streaming-toggle-banner{width:100%;border:none;padding:.75rem 1.25rem;text-align:left;background:linear-gradient(135deg,#0a7ea4,#06b6d4);cursor:pointer;font-size:.95rem;font-weight:700;color:#fff;display:flex;align-items:center;gap:.5rem}.streaming-toggle-banner:hover{opacity:.95}.streaming-icon{font-size:.8rem;display:inline-block;width:16px}.streaming-title{font-weight:700}.streaming-content-banner{padding:1rem 1.25rem;background:var(--bg-muted);font-size:.85rem;max-height:400px;overflow-y:auto;border-top:1px solid var(--border)}.streaming-pre{margin:0;white-space:pre-wrap;word-break:break-word;font-family:Courier New,monospace;line-height:1.5}.preview-images{display:flex;flex-direction:column;gap:.75rem}.preview-images img{width:100%;max-height:250px;object-fit:contain;border-radius:6px;border:1px solid var(--border);background:#fff}.param-row{margin-bottom:1.25rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.param-row:last-child{border-bottom:none}.param-row label{display:block;font-size:.875rem;color:var(--fg);margin-bottom:.75rem;font-weight:500;text-transform:capitalize}.param-controls{display:flex;align-items:center;gap:.75rem}.param-slider-bar{flex:1;height:8px;background:#1a3a4a;border-radius:4px;cursor:pointer;position:relative;overflow:hidden}.param-slider-fill{height:100%;background:linear-gradient(90deg,#0a7ea4,#0a9ec4);border-radius:4px;pointer-events:none;transition:width .1s ease}.param-slider-bar:hover{background:#1e4a5e}.param-slider-bar:active .param-slider-fill{background:linear-gradient(90deg,#0a9ec4,#0abee4)}.param-number-input{width:70px;padding:.4rem .5rem;border:1px solid var(--border);border-radius:4px;font-size:.875rem;text-align:center;font-family:monospace}.param-number-input:focus{outline:none;border-color:var(--accent)}.param-row input[type=checkbox]{width:20px;height:20px;cursor:pointer}.right-panel-tabs{display:flex;gap:0;margin-bottom:1rem;border-bottom:2px solid var(--border)}.right-panel-tab{flex:1;padding:.6rem 0;border:none;background:none;cursor:pointer;font-size:.9rem;font-weight:500;color:var(--fg-muted);border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s}.right-panel-tab:hover{color:var(--fg)}.right-panel-tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.right-panel-content{flex:1;overflow-y:auto}.code-block{font-family:ui-monospace,monospace;font-size:.8rem;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:.75rem;overflow:auto;max-height:520px;white-space:pre;margin:0}.output-block{font-family:ui-monospace,monospace;font-size:.85rem;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:.75rem;overflow:auto;max-height:600px;white-space:pre-wrap;word-break:break-word;margin:0;line-height:1.5}.streaming-output .muted{padding:.5rem 0}