*{
box-sizing:border-box;
font-family:'Poppins',sans-serif;
}

.char-tool{
max-width:700px;
margin:40px auto;
background:#fff;
border-radius:10px;
padding:25px;
box-shadow:0 5px 20px rgba(0,0,0,0.08);
border:1px solid #eee;
}

.char-tool h2{
margin-top:0;
font-size:22px;
}

.char-tool textarea{
width:100%;
height:180px;
padding:12px;
border-radius:8px;
border:1px solid #ddd;
font-size:15px;
resize:none;
outline:none;
transition:.2s;
}

.char-tool textarea:focus{
border-color:#29bdfd;
box-shadow:0 0 0 2px rgba(41,189,253,0.15);
}

.result-box{
margin-top:15px;
padding:12px;
background:#f7f7f7;
border-radius:8px;
font-weight:500;
}

.count{
color:#29bdfd;
font-weight:600;
}

.note{
font-size:14px;
color:#666;
margin-bottom:10px;
}