.tool-container{padding:20px;max-width:900px;margin:0 auto;}
.upload-box{border:2px dashed #409eff;border-radius:8px;padding:40px 20px;text-align:center;margin-bottom:20px;cursor:pointer;transition:all .3s;}
.upload-box:hover{border-color:#66b1ff;background:#f5fafe;}
#file-input{display:none;}
.preview-img{max-width:200px;max-height:200px;margin:15px auto;display:none;}
.text-area-box{margin-top:20px;}
textarea{width:100%;height:220px;padding:12px;border:1px solid #ddd;border-radius:6px;resize:none;outline:none;}
.btn-group{margin:15px 0;gap:10px;display:flex;}
.btn{padding:8px 20px;border:none;border-radius:4px;cursor:pointer;background:#409eff;color:#fff;}
.btn:hover{background:#66b1ff;}
.btn-copy{background:#67c23a;}
.btn-clear{background:#e6a23c;}