#akb-floating{position:fixed;right:16px;bottom:16px;z-index:99999}
#akb-toggle{background:#111;color:#fff;border:none;border-radius:24px;padding:10px 14px;cursor:pointer}
#akb-panel{position:fixed;right:16px;bottom:64px;width:380px;max-width:90vw;height:60vh;background:#fff;border:1px solid #ddd;border-radius:12px;box-shadow:0 4px 24px rgba(0,0,0,.15);display:flex;flex-direction:column}
#akb-panel[hidden]{display:none}
#akb-messages{flex:1;overflow:auto;padding:12px}
#akb-form{display:flex;gap:8px;padding:12px;border-top:1px solid #eee}
#akb-form input{flex:1;padding:8px;border:1px solid #ccc;border-radius:8px}
#akb-form button{padding:8px 12px;border:none;background:#0073aa;color:#fff;border-radius:8px;cursor:pointer}
.akb-header{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-bottom:1px solid #eee}
.akb-user{background:#f6f7f7;border:1px solid #e2e4e7;border-radius:8px;padding:8px;margin:6px 0}
.akb-answer{white-space:pre-wrap;margin:6px 0}
.akb-sources{margin:6px 0;padding-left:18px}
.akb-error{color:#b32d2e}