.pec-wrap{
  max-width:600px;
  margin:auto;
  font-family:Arial,sans-serif;
  border:1px solid #ddd;
  border-radius:12px;
  padding:16px;
  box-shadow:0 4px 12px rgba(0,0,0,.08);
}
.pec-title{ margin-top:0; }
.pec-desc{ color:#555; font-size:14px; margin:0 0 12px; }
.pec-label{ display:block; margin:10px 0 6px; font-size:14px; }
.pec-input, .pec-select{
  width:100%;
  padding:10px;
  margin:6px 0 12px;
  border-radius:8px;
  border:1px solid #ccc;
  box-sizing:border-box;
}
.pec-btn{
  width:100%;
  padding:12px;
  background:#1f8f4a;
  color:#fff;
  font-size:16px;
  font-weight:bold;
  border:none;
  border-radius:8px;
  cursor:pointer;
}
.pec-btn:hover{ filter:brightness(0.95); }
.pec-result{
  margin-top:16px;
  padding:14px;
  border-radius:10px;
  background:#f6f6f6;
}