.ratio-wrap{max-width:480px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:#1a1a1a}
.ratio-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.ratio-icon{font-size:34px;line-height:1}
.ratio-title{font-size:22px!important;font-weight:600!important;margin:0 0 3px!important;padding:0!important;border:none!important;color:#1a1a1a!important}
.ratio-sub{font-size:13px;color:#666;margin:0}
.ratio-tabs{display:flex;gap:8px;margin-bottom:18px}
.ratio-tab{flex:1;padding:10px 8px;font-size:13px;font-weight:500;border:1px solid #d8d8d8;border-radius:10px;background:#fff;color:#555;cursor:pointer}
.ratio-tab:hover:not(.act){background:#eff6ff}.ratio-tab.act{background:#dbeafe;color:#1D4ED8;border-color:#93c5fd}
.ratio-panel{display:none}.ratio-panel.act{display:block}
.ratio-grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:4px}
.ratio-lbl{display:block;font-size:13px;font-weight:500;color:#555;margin-bottom:5px}
.ratio-iw input{width:100%;box-sizing:border-box;padding:9px 12px;border:1px solid #d0d0d0;border-radius:8px;font-size:16px;font-family:monospace;text-align:center;color:#1a1a1a;background:#fff;outline:none;-moz-appearance:textfield}
.ratio-iw input::-webkit-inner-spin-button,.ratio-iw input::-webkit-outer-spin-button{-webkit-appearance:none}
.ratio-iw input:focus{border-color:#1D4ED8;box-shadow:0 0 0 3px rgba(29,78,216,.1)}
.ratio-group{margin-bottom:10px}
.ratio-equation-row{display:flex;align-items:center;gap:8px;justify-content:center;font-size:18px;font-weight:700;color:#555;margin-bottom:12px}
.ratio-equation-row .ratio-iw{width:60px}
.ratio-equation-row input:disabled{background:#f5f3ff;color:#5B21B6;font-weight:700}
.ratio-result-card{background:linear-gradient(135deg,#1D4ED8,#1e3a8a);border-radius:12px;padding:18px 22px;color:#fff;margin-top:12px;text-align:center;animation:ratio-in .22s ease}
@keyframes ratio-in{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
.ratio-res-main{font-size:36px;font-weight:800;font-family:monospace;margin-bottom:4px}
.ratio-res-sub{font-size:14px;opacity:.8}
.ratio-res-rows{border-top:1px solid rgba(255,255,255,.2);padding-top:10px;margin-top:10px}
.ratio-res-row{display:flex;justify-content:space-between;padding:5px 0;font-size:13px;border-bottom:1px solid rgba(255,255,255,.1)}
.ratio-res-row:last-child{border-bottom:none;font-weight:700;font-size:15px}
.ratio-res-lbl{opacity:.8}.ratio-res-val{font-family:monospace;font-weight:600}