.wh-widget{position:fixed;right:20px;bottom:80px;z-index:9999;}
.wh-btn{width:50px;height:50px;border-radius:100%;background:#ffffff;color:#fff;border:none;font-size:26px;cursor:pointer;box-shadow:0 4px 20px rgba(0,0,0,.2);}
.wh-panel{width:300px;background:#fff;border-radius:14px;box-shadow:0 4px 20px rgba(0,0,0,.15);margin-bottom:10px;display:none;}
.wh-panel.open{display:block;}
.wh-header{background:#25D366;color:#fff;padding:14px;display:flex;gap:10px;align-items:center;}
.wh-logo{width:36px;}
.wh-body{padding:14px;}
.wh-sample{background:#f1f1f1;padding:10px;border-radius:10px;margin-bottom:10px;}
.wh-input-wrap{display:flex;gap:8px;margin-bottom:10px;}
.wh-input{flex:1;padding:10px;border-radius:10px;border:1px solid #ccc;}
.wh-send{width:46px;border-radius:10px;background:#25D366;color:white;border:none;cursor:pointer;}
.start,.close{width:100%;padding:10px;border:none;border-radius:10px;margin-top:6px;cursor:pointer;}
.start{background:#25D366;color:#fff;}
.close{background:#eee;color:#333;}