body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}#root{min-height:100vh}.app-container{background:#f0f2f5;min-height:100vh;padding:24px}.main-card{max-width:900px;margin:0 auto}.action-bar{margin-top:16px}.excel-preview-wrap{padding:8px 0;overflow-x:auto}.excel-preview{table-layout:fixed;border-collapse:collapse;color:#000;background:#fff;width:100%;min-width:620px;font-family:SimSun,Songti SC,serif;font-size:11pt}.excel-preview col{width:25%}.excel-preview td{text-align:center;vertical-align:middle;border:1px solid #000;height:28px;padding:0 6px;font-weight:400}.excel-preview .excel-title-row td,.excel-preview .excel-header-row td{height:27px}.excel-preview .excel-bank-row td{background:#f2f2f2}