#stan-bubble{position:fixed;right:16px;bottom:16px;z-index:9999}#stan-bubble button{border:0;border-radius:999px;padding:12px 14px;font-weight:700;color:#fff;background:#0693E3;cursor:pointer;box-shadow:0 10px 28px rgba(2,6,23,.25)}#stan-panel{position:fixed;right:16px;bottom:76px;width:360px;max-width:92vw;background:#fff;border-radius:14px;box-shadow:0 22px 50px rgba(2,6,23,.3);overflow:hidden;z-index:9999;display:none}#stan-head{display:flex;gap:10px;align-items:center;padding:10px 12px;border-bottom:1px solid #eef2f7;background:#f8fafc;font-weight:800}#stan-body{max-height:55vh;overflow:auto;padding:12px}.msg{margin:8px 0}.msg .b{display:inline-block;padding:8px 10px;border-radius:10px;background:#f1f5f9}.msg.stan .b{background:#eff6ff}#stan-input{display:flex;gap:8px;border-top:1px solid #eef2f7;padding:8px;background:#fafafa}#stan-input input{flex:1;padding:8px 10px;border:1px solid #e5e7eb;border-radius:10px}#stan-input button{padding:8px 12px;border:0;border-radius:10px;background:#0693E3;color:#fff;font-weight:700;cursor:pointer}@media (max-width:420px){#stan-panel{left:6px;right:6px;width:auto}}