.imh-wrap{max-width:900px;margin:24px auto;padding:0 16px;}
.imh-card{background:#fff;border-radius:18px;box-shadow:0 18px 45px rgba(0,0,0,.08);padding:22px;}
.imh-head h3{margin:0 0 6px 0;font-size:22px;}
.imh-head p{margin:0 0 16px 0;color:#475569;line-height:1.6;}

.imh-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.imh-grid label{display:block;}
.imh-grid span{display:block;font-size:12px;color:#64748b;margin-bottom:6px;}
.imh-grid select,.imh-grid input{
  width:100%;border:1px solid #e5e7eb;border-radius:12px;padding:12px 12px;outline:none;background:#fff;
}
.imh-grid input:focus,.imh-grid select:focus{border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.12);}

.imh-full{grid-column:1 / -1;}
.imh-mini span{opacity:.9}

.imh-actions{display:flex;gap:10px;margin-top:14px;}
.imh-btn{border:none;border-radius:12px;padding:12px 14px;background:#2563eb;color:#fff;font-weight:700;cursor:pointer;}
.imh-btn.ghost{background:#eef2ff;color:#1e3a8a;}

.imh-result{margin-top:16px;border-top:1px solid #eef2f7;padding-top:14px;}
.imh-table{width:100%;border-collapse:collapse;}
.imh-table td{padding:10px 6px;border-bottom:1px dashed #e5e7eb;font-size:14px;}
.imh-table td:last-child{text-align:right;font-variant-numeric:tabular-nums;}
.imh-total{display:flex;justify-content:space-between;align-items:center;margin-top:10px;font-weight:800;}

.imh-footnote{margin-top:12px;font-size:12px;color:#64748b;line-height:1.55;}

@media (max-width:768px){
  .imh-grid{grid-template-columns:1fr;}
}