.ns-nia-chat{font-family:Arial,sans-serif;position:relative;z-index:9999}.ns-nia-chat[data-floating="1"]{position:fixed;right:20px;bottom:20px}.ns-nia-toggle{background:#d90000;color:#fff;border:none;border-radius:999px;padding:12px 16px;font-weight:700;cursor:pointer;box-shadow:0 8px 20px rgba(0,0,0,.18)}.ns-nia-panel{width:340px;max-width:calc(100vw - 32px);height:460px;background:#fff;border:1px solid #e6e6e6;border-radius:16px;box-shadow:0 18px 40px rgba(0,0,0,.18);overflow:hidden;margin-top:10px}.ns-nia-chat[data-floating="1"] .ns-nia-panel{position:absolute;right:0;bottom:60px}.ns-nia-header{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;background:#111;color:#fff}.ns-nia-close{background:transparent;border:none;color:#fff;font-size:24px;cursor:pointer;line-height:1}.ns-nia-messages{height:340px;overflow:auto;padding:14px;background:#f7f7f7}.ns-nia-msg{max-width:85%;padding:10px 12px;border-radius:14px;margin-bottom:10px;white-space:pre-wrap;line-height:1.35}.ns-nia-user{background:#111;color:#fff;margin-left:auto}.ns-nia-nia{background:#fff;color:#222;border:1px solid #ececec}.ns-nia-form{display:flex;gap:8px;padding:12px;border-top:1px solid #eee;background:#fff}.ns-nia-input{flex:1;padding:10px 12px;border:1px solid #ddd;border-radius:10px}.ns-nia-send{background:#d90000;color:#fff;border:none;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer}