:root{--primary-color: #1a237e;--bg-color: #ffffff;--chat-bg: #ffffff;--user-msg-bg: #f4f4f4;--assistant-msg-bg: transparent;--border-color: #e5e5e5;--text-main: #0d0d0d;--text-secondary: #676767}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{font-family:-apple-system,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg-color);color:var(--text-main);overflow:hidden}.app{display:flex;flex-direction:column;height:100vh;height:100dvh}.header{height:56px;padding:0 16px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color);background:#fff;position:sticky;top:0;z-index:10}.header h1{font-size:16px;font-weight:600}.settings-btn{background:none;border:none;color:var(--text-secondary);font-size:14px;cursor:pointer}.main-container{display:flex;flex:1;overflow:hidden;position:relative}.sidebar{width:260px;background:#f9f9f9;border-right:1px solid var(--border-color);padding:20px;overflow-y:auto;transition:transform .3s ease}.chat-container{flex:1;display:flex;flex-direction:column;background:var(--chat-bg);height:100%}.messages{flex:1;overflow-y:auto;padding:20px 0;display:flex;flex-direction:column}.message{width:100%;max-width:800px;margin:0 auto;padding:16px 24px;display:flex;flex-direction:column}.message.user{align-items:flex-end}.message-content{max-width:85%;font-size:16px;line-height:1.6}.user .message-content{background:var(--user-msg-bg);color:var(--text-main);padding:10px 16px;border-radius:20px}.assistant .message-content{background:transparent;color:var(--text-main);padding:0}.sources{margin-top:12px;font-size:12px;color:var(--text-secondary);border-top:1px solid #eee;padding-top:8px}.input-container-wrapper{width:100%;max-width:800px;margin:0 auto;padding:0 20px 24px}.input-container{display:flex;align-items:flex-end;background:#fff;border:1px solid var(--border-color);border-radius:24px;padding:8px 12px;box-shadow:0 2px 8px #0000000d}.input{flex:1;border:none;background:transparent;padding:8px;max-height:200px;min-height:24px;font-size:16px;resize:none;outline:none;line-height:1.5}.send-btn{width:32px;height:32px;border-radius:50%;background:var(--primary-color);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;margin-bottom:2px;transition:opacity .2s;font-size:18px}.send-btn:disabled{background:#e5e5e5;color:#acacac}.loading{padding:12px 0;color:var(--text-secondary);font-size:14px;display:flex;align-items:center;gap:8px}.spinner{width:16px;height:16px;border:2px solid #f3f3f3;border-top:2px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.assistant .message-content h1,.assistant .message-content h2,.assistant .message-content h3{margin:16px 0 8px;font-weight:600;color:var(--text-main)}.assistant .message-content p{margin-bottom:12px}.assistant .message-content ul,.assistant .message-content ol{margin:0 0 12px 20px}.assistant .message-content code{background:#f0f0f0;padding:2px 4px;border-radius:4px;font-family:monospace;font-size:.9em}.assistant .message-content pre{background:#f6f8fa;padding:12px;border-radius:8px;overflow-x:auto;margin-bottom:12px}.assistant .message-content pre code{background:transparent;padding:0;font-size:14px}.assistant .message-content table{border-collapse:collapse;width:100%;margin-bottom:16px}.assistant .message-content th,.assistant .message-content td{border:1px solid var(--border-color);padding:8px;text-align:left}.assistant .message-content th{background:#f9f9f9}.welcome{text-align:center;margin-top:40px;padding:0 20px}.welcome p{color:var(--text-secondary);margin-bottom:8px}.status-item{margin-bottom:12px;font-size:14px}.reload-btn{width:100%;padding:10px;background:#eee;border:none;border-radius:6px;cursor:pointer;font-size:14px}.footer{font-size:11px;color:var(--text-secondary);text-align:center;padding:10px;background:#fff}@media (max-width: 768px){.sidebar{display:none}.message{padding:12px 16px}.message-content{max-width:90%;font-size:15px}.input-container-wrapper{padding:0 12px 12px}}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#root{width:100%;height:100vh}