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.2s;display:flex}.clear-button:hover{color:#333;background:#f5f5f5;border-color:#d5d5d5}.chat-messages{scroll-behavior:smooth;flex:1;padding:20px;overflow-y:auto}.welcome-message{text-align:center;color:#666;flex-direction:column;justify-content:center;align-items:center;height:100%;display:flex}.welcome-icon{color:#d1d1d1;margin-bottom:20px}.welcome-message h2{color:#333;margin:0 0 8px;font-size:24px;font-weight:600}.welcome-message p{color:#999;margin:0;font-size:16px}.message{gap:12px;margin-bottom:24px;animation:.3s ease-in fadeIn;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.message.user .message-avatar{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}.message.assistant .message-avatar{color:#fff;background:linear-gradient(135deg,#10a37f 0%,#1a7f64 100%)}.message-content{flex:1;max-width:800px}.message-text{color:#374151;white-space:pre-wrap;word-wrap:break-word;background:#f7f7f8;border-radius:12px;padding:16px 20px;line-height:1.6}.message.user .message-text{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);max-width:fit-content;margin-left:auto}.message.assistant .message-text{background:#f7f7f8}.copy-button{color:#999;cursor:pointer;background:0 0;border:none;border-radius:6px;align-items:center;gap:4px;margin-top:8px;padding:6px 10px;font-size:12px;transition:all .2s;display:flex}.copy-button:hover{color:#666;background:#f0f0f0}.copy-button svg{flex-shrink:0}.loading-dots{background:#f7f7f8;border-radius:12px;gap:4px;width:fit-content;padding:16px 20px;display:flex}.loading-dots span{background:#d1d1d1;border-radius:50%;width:8px;height:8px;animation:1.4s ease-in-out infinite both bounce}.loading-dots span:first-child{animation-delay:-.32s}.loading-dots span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.chat-input-form{background:#fff;border-top:1px solid #e5e5e5;padding:16px 20px 24px}.input-container{gap:12px;max-width:800px;margin:0 auto;display:flex;position:relative}.chat-input{resize:none;background:#f9f9f9;border:1px solid #e5e5e5;border-radius:12px;flex:1;min-height:50px;max-height:150px;padding:14px 50px 14px 16px;font-family:inherit;font-size:16px;line-height:1.5;transition:all .2s}.chat-input:focus{background:#fff;border-color:#667eea;outline:none;box-shadow:0 0 0 3px #667eea1a}.chat-input::placeholder{color:#999}.chat-input:disabled{cursor:not-allowed;opacity:.7}.send-button{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:50px;height:50px;transition:all .2s;display:flex}.send-button:hover:not(.disabled){transform:scale(1.05);box-shadow:0 4px 12px #667eea66}.send-button:active:not(.disabled){transform:scale(.98)}.send-button.disabled{opacity:.4;cursor:not-allowed}.send-button svg{flex-shrink:0}.send-button:disabled svg{animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.input-hint{text-align:center;color:#999;margin:8px 0 0;font-size:12px}.chat-messages::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track{background:0 0}.chat-messages::-webkit-scrollbar-thumb{background:#d1d1d1;border-radius:3px}.chat-messages::-webkit-scrollbar-thumb:hover{background:#b1b1b1}@media (width<=768px){.chat-header{padding:12px 16px}.chat-messages{padding:16px}.message{gap:8px}.message-text{padding:12px 16px;font-size:15px}.chat-input-form{padding:12px 16px 20px}.input-container{gap:8px}.chat-input{padding:12px 44px 12px 14px;font-size:15px}.send-button{width:44px;height:44px}.clear-button{padding:6px 10px;font-size:13px}}.App{min-height:100vh}*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}html,body,#root{height:100%;overflow:hidden}