:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;color:#1f2937;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;min-width:320px;min-height:100vh;background-color:#fff}#root{width:100%;height:100vh}.site-header{height:56px;background:#fff;border-bottom:1px solid #e5e7eb;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 16px}.site-header__left{display:flex;align-items:center;justify-content:flex-start}.site-header__logo{height:32px;object-fit:contain}.site-header__center{display:flex;justify-content:center;align-items:center}.site-header__title{font-size:18px;font-weight:600;color:#111827}.site-header__right{display:flex;justify-content:flex-end;align-items:center}.site-header__back{display:inline-flex;align-items:center;gap:6px;background:transparent;border:none;font-size:1.125rem;font-weight:500;color:#111827;cursor:pointer;padding:6px 8px;border-radius:6px;transition:background .15s ease}.site-header__back:hover{background:#f3f4f6}.back-text{display:none}@media(min-width:640px){.back-text{display:inline}}.message-row{display:flex;margin-bottom:12px}.message-row--bot{justify-content:flex-start}.message-row--user{justify-content:flex-end}.message-bubble{max-width:75%;padding:10px 14px;border-radius:14px;font-size:14px;line-height:1.4}.message-bubble--bot{background:#f3f4f6;color:#111827;border-bottom-left-radius:6px}.message-bubble--user{background:#3571bb;color:#fff;border-bottom-right-radius:6px}.message-text{margin:0;white-space:pre-wrap;line-height:1.4}.message-time{display:block;margin-top:4px;font-size:11px;opacity:.7}.quick-replies{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 16px}.quick-reply-btn{border:1.5px solid #3571BB;background:#fff;color:#3571bb;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:500;cursor:pointer;transition:background .15s ease,color .15s ease}.quick-reply-btn:hover{background:#3571bb;color:#fff}.chat-messages{flex:1;overflow-y:auto;padding:16px 12px 24px;background:#fff}.chat-message-group{margin-bottom:16px}.chat-input-bar{border-top:1px solid #e5e7eb;padding:10px 12px;background:#fff;position:sticky;bottom:0}.chat-input-send{max-width:900px;margin:0 auto;display:flex;align-items:flex-end;gap:8px}.chat-input{flex:1;height:20px;border:1px solid transparent;background:#f3f4f6;padding:15px 14px;border-radius:30px;font-size:16px;outline:none;font-family:inherit;min-height:10px}.chat-input--multiline{resize:none;max-height:96px;overflow-y:auto}.chat-input:focus{background:#f5f5f5}.chat-send-btn{width:45px;height:45px;border-radius:50%;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;margin-bottom:2px;transition:background .2s ease,color .2s ease}.chat-send-btn:not(:disabled){background:#3571bb;color:#fff}.chat-send-btn:disabled{background:transparent;color:#9199a6;cursor:not-allowed}.chat-container{display:flex;flex-direction:column;height:100vh}.chat-input-wrapper{width:100%;padding:12px 16px;border-top:1px solid #e6e6e6;background:#fff}.chat-input{max-width:920px;margin:0 auto;display:flex;align-items:flex-end;gap:8px}.chat-input textarea{flex:1;border-radius:20px;padding:10px 14px;border:1px solid #ddd;resize:none;min-height:40px;max-height:120px;outline:none}.chat-input button{width:40px;height:40px;border-radius:50%;border:none;background:#2f5bea;color:#fff;cursor:pointer}