.sap-container{max-width:820px;margin:12px auto;padding:12px;border:1px solid #e2e2e2;border-radius:8px;background:#fff;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;}
.sap-container h3{margin-top:0;}
.sap-table-wrap{overflow:auto;margin-bottom:8px;}
.sap-table{width:100%;border-collapse:collapse;margin-bottom:8px;}
.sap-table th,.sap-table td{border:1px solid #ddd;padding:6px;text-align:left;min-width:60px;}
.sap-input{width:100%;padding:6px;box-sizing:border-box;}
.sap-calc{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px;}
.sap-btn{padding:8px 10px;border:1px solid #888;background:#f7f7f7;cursor:pointer;border-radius:6px;}
.sap-btn.sap-primary{background:#0b66c3;color:#fff;border-color:#0b66c3;}
.sap-result{margin-top:10px;padding:8px;background:#f9f9f9;border-radius:6px;}
.sap-note{font-size:12px;color:#666;margin-top:12px;}
@media(max-width:700px){.sap-calc{flex-direction:column;align-items:stretch;}.sap-table th,.sap-table td{font-size:13px;padding:8px;}}