.hlcb-root{position:fixed;right:18px;bottom:18px;z-index:99999;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial}
.hlcb-bubble{width:56px;height:56px;border-radius:50%;border:0;cursor:pointer;box-shadow:0 14px 40px rgba(0,0,0,.22);font-size:22px;background:#111827;color:#fff}
.hlcb-panel{width:340px;height:500px;background:#fff;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.25);overflow:hidden;margin-bottom:10px;display:none}
.hlcb-panel[aria-hidden="false"]{display:block}
.hlcb-header{padding:12px 14px;background:#111827;color:#fff;display:flex;align-items:center;gap:10px}
.hlcb-avatar{width:34px;height:34px;border-radius:10px;background:#1f2937;display:flex;align-items:center;justify-content:center;font-weight:700}
.hlcb-headtxt{display:flex;flex-direction:column;line-height:1.2}
.hlcb-title{font-size:14px;font-weight:700}
.hlcb-status{font-size:12px;color:#c7d2fe;display:flex;align-items:center;gap:6px}
.hlcb-dot{width:8px;height:8px;border-radius:50%;background:#22c55e}
.hlcb-status-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:240px}
.hlcb-body{padding:12px;height:330px;overflow:auto;background:#f7f7f8}
.hlcb-msg{max-width:82%;padding:10px 12px;margin:8px 0;border-radius:14px;font-size:13px;line-height:1.35;white-space:pre-line}
.hlcb-msg.bot{background:#fff;border:1px solid #e5e7eb}
.hlcb-msg.me{background:#111827;color:#fff;margin-left:auto}
.hlcb-msg.agent{background:#ecfeff;border:1px solid #a5f3fc}
.hlcb-msg.sys{background:#eef2ff;border:1px solid #c7d2fe}
.hlcb-chips{display:flex;flex-wrap:wrap;gap:8px;padding:10px 12px;background:#fff;border-top:1px solid #e5e7eb}
.hlcb-chip{border:1px solid #e5e7eb;background:#fff;border-radius:999px;padding:8px 10px;font-size:12px;cursor:pointer}
.hlcb-chip.primary{background:#111827;color:#fff;border-color:#111827}
.hlcb-input{display:flex;gap:8px;padding:10px 12px;border-top:1px solid #e5e7eb;background:#fff}
.hlcb-input input{flex:1;padding:10px 12px;border-radius:12px;border:1px solid #e5e7eb;outline:none}
.hlcb-input button{padding:10px 12px;border-radius:12px;border:0;cursor:pointer;background:#111827;color:#fff}
.hlcb-typing{font-size:12px;color:#6b7280;margin:6px 0 0 2px}