:root{--primary-color: #165DFF;--background-color: #F5F7FA;--text-color: #333333;--border-color: #E4E7ED;--card-shadow: 0 2px 12px 0 rgba(0, 0, 0, .1);--border-radius: 8px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background-color);color:var(--text-color)}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.container{max-width:1200px;margin:0 auto;padding:20px}.card{background-color:#fff;border-radius:var(--border-radius);box-shadow:var(--card-shadow);padding:20px;margin-bottom:20px}button{background-color:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);padding:10px 20px;font-size:14px;cursor:pointer;transition:all .3s ease}button:hover{opacity:.9;box-shadow:0 2px 8px #165dff4d}input,textarea{width:100%;padding:10px;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:14px;margin-bottom:10px}input:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #165dff1a}h1,h2,h3,h4,h5,h6{margin-bottom:10px}ul{list-style:none}li{margin-bottom:8px}.message{display:flex;margin-bottom:16px;align-items:flex-start}.message-avatar{width:40px;height:40px;border-radius:50%;margin-right:12px;object-fit:cover}.message-content{flex:1}.message-header{display:flex;align-items:center;margin-bottom:4px}.message-sender{font-weight:600;margin-right:8px;font-size:14px}.message-time{font-size:12px;color:#999}.message-text{font-size:14px;line-height:1.4}.chat-input{display:flex;margin-top:20px}.chat-input textarea{flex:1;resize:none;height:80px;margin-right:10px}@media (max-width: 1024px){.container{padding:10px}}@media (max-width: 768px){.container{padding:0;height:100vh!important}.mobile-agent-list{position:fixed;left:0;top:0;height:100vh;width:100%;z-index:1000;transform:translate(-100%);transition:transform .3s ease}.mobile-agent-list.open{transform:translate(0)}.agent-toggle{display:block!important;position:fixed;left:10px;top:10px;z-index:1001;background:#fff;border:1px solid var(--border-color);border-radius:var(--border-radius);padding:8px;cursor:pointer}.chat-area{width:100%!important}.message{margin-bottom:16px!important}.message-content{max-width:80%!important}.message-avatar{width:32px!important;height:32px!important}.chat-input{flex-direction:column}.chat-input textarea{margin-right:0;margin-bottom:10px;height:80px!important}.chat-input button{align-self:flex-end}}@media (max-width: 480px){.message-content{max-width:85%!important}.message-text{font-size:13px!important}.chat-input textarea{height:70px!important}}