.tool-container{padding:20px;max-width:800px;margin:0 auto;}
.form-item{margin-bottom:16px;}
label{display:block;margin-bottom:6px;font-weight:500;font-size:14px;}
input,select{width:100%;padding:10px;border:1px solid #e5e7eb;border-radius:6px;box-sizing:border-box;}
textarea{width:100%;padding:10px;border:1px solid #e5e7eb;border-radius:6px;box-sizing:border-box;resize:none;}
.btn{padding:9px 18px;border:none;border-radius:6px;cursor:pointer;margin-right:10px;}
.btn-gen{background:#2d8cf0;color:#fff;}
.btn-copy{background:#67c23a;color:#fff;}
.btn-clear{background:#f56c6c;color:#fff;}
.row-flex{display:flex;gap:15px;flex-wrap:wrap;}
.row-flex .form-item{flex:1;min-width:130px;}
.tips-text{font-size:13px;color:#666;margin:4px 0;}
.num-tip{margin:10px 0;color:#333;}