.hl-aih-fab{
  position: fixed; right: 16px; bottom: 16px; background:#2C373B; color:#fff;
  width:56px; height:56px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  cursor:pointer; box-shadow:0 6px 18px rgba(0,0,0,.2); font-size:22px; z-index:9999;
}
.hl-aih-float{
  position: fixed; right: 16px; bottom: 84px; width: 360px; max-width: calc(100vw - 32px);
  background:#fff; border:1px solid #ddd; border-radius:16px; overflow:hidden; box-shadow:0 10px 30px rgba(0,0,0,.16);
  z-index: 9999;
}
.hl-aih-embedded .hl-aih-chat{ border:1px solid #e5e7eb; border-radius:16px; overflow:hidden; max-width:720px; margin:0 auto; }

.hl-aih-header{ background:#3C4024; color:#fff; padding:10px 14px; display:flex; align-items:center; justify-content:space-between; }
.hl-aih-title{ font-weight:600; }
.hl-aih-close{ background:transparent; color:#fff; border:none; font-size:20px; cursor:pointer; }

.hl-aih-messages{ height:320px; overflow:auto; padding:12px; background:#F9F1E8; }
.hl-aih-form{ display:flex; gap:8px; border-top:1px solid #eee; padding:8px; background:#fff; }
.hl-aih-input{ flex:1; padding:10px 12px; border:1px solid #ddd; border-radius:10px; }
.hl-aih-send{ background:#531100; color:#fff; border:none; padding:10px 14px; border-radius:10px; cursor:pointer; }

.hl-aih-footer{ padding:8px 12px; background:#fff; border-top:1px solid #eee; }
.hl-msg{ display:flex; margin:8px 0; }
.hl-msg.user{ justify-content:flex-end; }
.hl-msg .bubble{ max-width:80%; padding:10px 12px; border-radius:14px; }
.hl-msg.user .bubble{ background:#2C373B; color:#fff; border-bottom-right-radius:4px; }
.hl-msg.assistant .bubble{ background:#fff; border:1px solid #ddd; color:#111; border-bottom-left-radius:4px; }