body{margin:0;padding:16px;font-family:Helvetica,Helvetica Neue,Arial,sans-serif;background:#f5f5f5;color:#000;--oec-primary: #004578;--oec-primary-hover: #005a9e;--oec-light: #e0eef9;--oec-border: #999}.hidden{display:none!important}#file-input{display:none}.oec-card{max-width:520px;margin:0 auto;background:#fff;border:1px solid var(--oec-border);padding:20px;box-sizing:border-box}.oec-card-title{margin:0 0 16px;font-size:16px;color:var(--oec-primary)}.oec-row{margin-bottom:12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.oec-label{font-size:13px;color:#333;min-width:100px}.oec-file-name{font-size:13px;color:#666}.oec-select{flex:1;min-width:180px;padding:8px 10px;font-size:13px;border:1px solid var(--oec-border);background:#fff}.oec-btn{padding:8px 16px;font-size:13px;border:1px solid var(--oec-primary);background:var(--oec-light);color:var(--oec-primary);cursor:pointer}.oec-btn:hover{background:#b8d4eb}.oec-btn-primary{background:var(--oec-primary);color:#fff}.oec-btn-primary:hover:not(.disabled){background:var(--oec-primary-hover)}.oec-actions{margin-top:16px}.oec-btn.disabled{opacity:.6;cursor:not-allowed}.oec-modal-bg{display:none;position:fixed;left:0;top:0;width:100%;height:100%;background:#00000080;z-index:1000}.oec-modal{display:none;position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:90%;max-width:400px;background:#fff;border:1px solid var(--oec-border);padding:20px;box-shadow:0 4px 12px #00000026;z-index:1001}.oec-modal-title{margin:0 0 10px;font-size:16px;color:var(--oec-primary)}.oec-modal-msg{margin:0 0 16px;font-size:13px;color:#333}.oec-loading-pct{margin:0 0 8px;font-size:18px;font-weight:700;color:var(--oec-primary)}.oec-loading-hint{margin:0;font-size:12px;color:#666;font-style:italic}.oec-modal-actions{text-align:right}#popup-bg[style*=block],#popup[style*=block]{display:block!important}@media(max-width:600px){.oec-row{flex-direction:column;align-items:stretch}.oec-label,.oec-select{min-width:0}}