#dvk-lc-root { font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
.dvk-lc-bubble {
  position: fixed; bottom: 20px; right: 20px; width: 56px; height: 56px;
  border-radius: 50%; background: var(--dvk-lc-color, #1a73e8);
  box-shadow: 0 10px 20px rgba(0,0,0,.2); display: flex; align-items:center; justify-content:center;
  color:#fff; cursor:pointer; z-index: 999999;
}
.dvk-lc-panel {
  position: fixed; bottom: 90px; right: 20px; width: 320px; max-height: 520px; display:none;
  background:#fff; border-radius: 12px; overflow:hidden; box-shadow: 0 16px 32px rgba(0,0,0,.25); z-index: 999999;
}
.dvk-lc-header { background: var(--dvk-lc-color, #1a73e8); color:#fff; padding:12px 12px; font-weight:600; }
.dvk-lc-body { padding: 12px; height: 360px; overflow:auto; background:#f8fafc; }
.dvk-lc-msg { padding:8px 10px; border-radius: 10px; margin:6px 0; max-width: 85%; clear:both; }
.dvk-lc-msg.visitor { background:#e1f0ff; margin-left:auto; }
.dvk-lc-msg.agent { background:#ececec; }
.dvk-lc-msg.system { background:#fff7d6; text-align:center; font-size: 12px; }
.dvk-lc-input { display:flex; border-top:1px solid #e5e7eb; }
.dvk-lc-input input { flex:1; border:none; padding:10px; font-size:14px; outline:none; }
.dvk-lc-input button { background:var(--dvk-lc-color, #1a73e8); border:none; color:#fff; padding:0 14px; cursor:pointer; }
.dvk-lc-close { float:right; font-size:18px; cursor:pointer; }
.dvk-lc-privacy { font-size: 11px; color:#444; padding: 8px 12px; background:#fff; }