:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;color:#252525;background:#f8f8fa}*{box-sizing:border-box}body{margin:0}.app-shell{display:flex;height:100vh;min-width:800px}.sidebar{width:240px;background:#171717;color:#eee;display:flex;flex-direction:column;padding:8px}.new-chat{height:38px;border:1px solid #404040;border-radius:8px;background:#292929;color:#fff;text-align:left;padding:0 14px;font-size:14px;cursor:pointer}.new-chat span{font-size:20px;margin-right:7px}.sidebar-title{font-size:12px;color:#8d8d8d;padding:21px 9px 8px}.conversation-list{overflow:auto;flex:1}.conversation{display:flex;align-items:center;gap:8px;border-radius:6px;padding:9px 10px;font-size:12px;color:#c6c6c6;cursor:pointer}.conversation:hover,.conversation.active{background:#2a2a2a;color:white}.conversation span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.conversation button{color:#888;background:none;border:0;cursor:pointer}.sidebar-bottom{border-top:1px solid #333;padding:12px 5px 5px}.sidebar-bottom label{display:block;font-size:11px;color:#9a9a9a;margin-bottom:6px}.sidebar-bottom select{width:100%;background:#272727;border:1px solid #4c4c4c;color:#eee;border-radius:6px;padding:7px;font-size:12px}.connection{font-size:11px;color:#999;margin-top:12px;display:flex;align-items:center;gap:6px}.connection i{width:7px;height:7px;border-radius:50%;background:#e3a735}.connection i.ok{background:#42c67a}.connection i.bad{background:#e25c5c}.main-panel{flex:1;display:flex;flex-direction:column}.topbar{height:38px;border-bottom:1px solid #e8e8e8;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 27px}.brand{font-weight:600;font-size:15px}.brand-mark{color:#7359ff;font-size:25px;vertical-align:-2px;margin-right:7px}.topbar a{color:#fa634e;text-decoration:none;font-size:12px}.topbar b{background:#ff4f87;color:#fff;border-radius:5px;padding:2px 5px;font-size:9px;margin-left:5px}.chat-page{display:flex;flex-direction:column;flex:1;max-width:1000px;width:100%;margin:auto;padding:74px 30px 24px}.welcome{text-align:center}.welcome h1{font-size:25px;margin:0 0 7px}.welcome p{font-size:13px;color:#8a8a8a;margin:0}.quick-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin-top:28px}.quick-actions button{background:#fff;border:1px solid #e7e7e7;border-radius:18px;padding:8px 14px;color:#555;cursor:pointer;font-size:12px}.messages{flex:1;overflow:auto;padding:35px 10px 12px}.message{display:flex;margin:14px 0;line-height:1.7;font-size:14px}.message.user{justify-content:flex-end}.bubble{max-width:78%;padding:10px 15px;border-radius:13px;white-space:pre-wrap;word-break:break-word}.user .bubble{background:#7359ff;color:white;border-bottom-right-radius:4px}.assistant .bubble{background:#fff;border:1px solid #eee;border-bottom-left-radius:4px}.composer{position:relative;background:#fff;border:1px solid #dedede;border-radius:14px;box-shadow:0 3px 18px #0000000c;padding:14px 57px 25px 17px}.composer textarea{display:block;width:100%;border:0;resize:none;outline:0;font:inherit;font-size:14px;min-height:24px;max-height:140px}.send{position:absolute;right:11px;top:10px;width:38px;height:38px;border:0;border-radius:11px;background:#7758ff;color:white;font-size:19px;cursor:pointer}.send:disabled{opacity:.5}.composer-hint{position:absolute;bottom:5px;left:17px;color:#aaa;font-size:10px}.hidden{display:none}@media(max-width:700px){.sidebar{width:190px}.chat-page{padding-left:14px;padding-right:14px}}