*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif}body{background:#f5f5f5}.page-header,.page-card{margin-bottom:16px}.chat-panel{display:flex;flex-direction:column;height:calc(100vh - 200px);min-height:400px}.chat-messages{flex:1;overflow-y:auto;padding:16px;background:#fafafa;border:1px solid #f0f0f0;border-radius:8px;margin-bottom:12px}.chat-message{margin-bottom:12px;max-width:80%}.chat-message.user{margin-left:auto;text-align:right}.chat-message.assistant,.chat-message.human{margin-right:auto}.chat-bubble{display:inline-block;padding:8px 12px;border-radius:8px;text-align:left;word-break:break-word}.chat-message.user .chat-bubble{background:#1677ff;color:#fff}.chat-message.assistant .chat-bubble{background:#e6f4ff;color:#1677ff}.chat-message.human .chat-bubble{background:#fff;border:1px solid #d9d9d9}.stat-card{text-align:center}.funnel-chart{height:360px}