:root{font-family:Arial,'Microsoft YaHei','PingFang SC',sans-serif;color:#292421;background:#f8f6ef;line-height:1.65}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,.button{border:0;border-radius:10px;background:#4c3016;color:white;padding:12px 18px;cursor:pointer;display:inline-block;text-decoration:none;text-align:center}button:disabled{opacity:.5;cursor:wait}.secondary{background:#eee8dc;color:#4c3016}input,textarea,select{display:block;width:100%;border:1px solid #c9c1b0;border-radius:9px;background:white;color:#292421;padding:11px;font-size:16px}textarea{resize:vertical;max-height:200px}label{display:block;font-size:14px;margin-top:12px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #b38a48;outline-offset:3px}h1,h2,p{margin:0 0 12px}.brand{font-size:12px;letter-spacing:.2em;color:#947246}h1{font-size:26px;font-weight:500}h2{font-size:22px}small{font-size:12px;color:#786f63}#login{max-width:430px;margin:10vh auto;padding:26px}#login-form{display:grid;gap:12px;margin:20px 0}#login-status{color:#a42e27}#workspace{max-width:1100px;margin:auto;height:100dvh;display:flex;flex-direction:column;padding:16px 22px;padding-bottom:max(12px,env(safe-area-inset-bottom))}[hidden]{display:none!important}header{display:flex;align-items:center;justify-content:space-between;gap:12px}header h1{margin:0}nav{display:flex;gap:8px;padding:14px 0;border-bottom:1px solid #ded6c7}nav button{background:transparent;color:#6e6152;border-radius:0;padding:9px 8px}nav button[aria-pressed=true]{border-bottom:3px solid #98723e;color:#382819}#status{font-size:13px;padding:6px 0;min-height:30px;color:#76552d;white-space:pre-wrap}#chat-panel{display:flex;flex-direction:column;min-height:0;flex:1}#messages{flex:1;overflow:auto;overscroll-behavior:contain;padding:12px 6px 18px;min-height:100px}.message{background:white;border:1px solid #e4ddcf;padding:16px 20px;border-radius:16px;margin:12px 0;max-width:90%}.message.user{background:#e9eee7;margin-left:auto}.message p{white-space:pre-wrap;overflow-wrap:anywhere;margin:8px 0}.message small{display:block}.message .secondary{font-size:12px;padding:6px 10px}#chat-form{flex-shrink:0;background:#f8f6ef;border-top:1px solid #ded6c7;padding-top:6px}#chat-form label{margin:0 0 4px}.composer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:8px}.composer small{max-width:62%}#tasks-panel,#tools-panel{overflow:auto;flex:1;padding:20px 4px}#task-form{max-width:650px;display:grid;gap:8px}#task-list article{background:white;border:1px solid #ded6c7;border-radius:12px;padding:16px;margin:16px 0}#task-list p{white-space:pre-wrap;overflow-wrap:anywhere}#tools-panel button,#tools-panel .button{margin:8px 8px 8px 0}#tools-panel p{max-width:750px}@media(max-width:650px){#workspace{padding:12px 14px;padding-bottom:max(10px,env(safe-area-inset-bottom))}h1{font-size:22px}nav{gap:2px}nav button{font-size:14px;flex:1;padding:9px 4px}.message{max-width:96%;padding:14px}.composer small{max-width:48%;font-size:10px}.composer button{font-size:15px;padding:12px}#message{max-height:140px}}