:root{color:#172033;background:#eef2f6;font-family:Inter,Microsoft YaHei,PingFang SC,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer}.pos{grid-template-columns:minmax(520px,1.15fr) minmax(420px,.85fr);gap:18px;min-height:100vh;padding:18px;display:grid}.left,.right{background:#fff;border:1px solid #dfe5ec;border-radius:8px;padding:20px}header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px;display:flex}.header-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}h1,h2,p{margin:0}h1{letter-spacing:0;font-size:30px}header p{color:#2563eb;font-weight:700}.token-button{color:#172033;background:#fff;border:1px solid #cbd5e1;border-radius:8px;padding:8px 12px}.scan-box{grid-template-columns:1fr 120px;gap:12px;margin-bottom:18px;display:grid}.scan-box input{border:2px solid #2563eb;border-radius:8px;height:64px;padding:0 18px;font-size:24px}.scan-box button,.checkout{color:#fff;background:#16a34a;border:0;border-radius:8px;font-weight:800}.quick-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.quick-list button{text-align:left;background:#f8fafc;border:1px solid #d1d9e3;border-radius:8px;min-height:88px;padding:14px}.quick-list span,.quick-list strong,.quick-list em{display:block}.quick-list strong{color:#dc2626;margin-top:8px}.quick-list em{color:#64748b;margin-top:4px;font-style:normal}.right{flex-direction:column;display:flex}.cart-head{border-bottom:1px solid #e5e7eb;justify-content:space-between;padding-bottom:14px;display:flex}.cart-lines{flex:1;padding:12px 0;overflow:auto}.cart-lines article{border-bottom:1px solid #edf0f3;grid-template-columns:1fr 120px 90px;align-items:center;gap:12px;padding:13px 0;display:grid}.cart-lines span{color:#64748b;margin-top:4px;display:block}.empty-cart{color:#64748b;text-align:center;padding:28px 0}.qty{grid-template-columns:36px 1fr 36px;align-items:center;gap:8px;display:grid}.qty button{background:#fff;border:1px solid #cbd5e1;border-radius:6px;height:36px}.qty b{text-align:center}footer{border-top:1px solid #e5e7eb;padding-top:16px}.pay-tip{color:#1d4ed8;background:#eff6ff;border-radius:8px;margin-bottom:12px;padding:12px}.total{justify-content:space-between;align-items:baseline;margin-bottom:12px;display:flex}.total strong{color:#dc2626;font-size:42px}.checkout,.ghost{width:100%;height:60px;margin-top:10px;font-size:20px}.ghost{color:#172033;background:#fff;border:1px solid #cbd5e1;border-radius:8px}@media (width<=900px){.pos,.quick-list{grid-template-columns:1fr}}