body{font-family:Arial,Helvetica,sans-serif;background:#f5f6f8;margin:0;color:#222}
.container{max-width:1280px;margin:0 auto;padding:20px}
.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.site-title{font-size:28px;font-weight:700}
.muted{color:#666;font-size:13px}
.nav{display:flex;gap:8px;flex-wrap:wrap}
.card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 12px rgba(0,0,0,.06);margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.box{background:#fafafa;border-radius:10px;padding:14px}
.num{font-size:28px;font-weight:700;margin-top:8px}
.btn{display:inline-block;padding:10px 14px;border-radius:8px;text-decoration:none;border:none;cursor:pointer}
.btn-primary,.btn{background:#1677ff;color:#fff}
.btn-light{background:#f0f2f5;color:#333}
.btn-danger{background:#cf1322;color:#fff}
.btn-success{background:#389e0d;color:#fff}
.btn-warning{background:#d48806;color:#fff}
form.inline{display:inline}
input[type=text],input[type=password],select,textarea{width:100%;padding:11px 12px;border:1px solid #d9d9d9;border-radius:8px;box-sizing:border-box}
label{display:block;font-weight:700;margin-bottom:6px}
.row{margin-bottom:14px}
table{width:100%;border-collapse:collapse}
th,td{padding:12px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}
th{background:#fafafa}
.flash{padding:12px 14px;border-radius:8px;margin-bottom:16px}
.flash.success{background:#f6ffed;color:#389e0d;border:1px solid #b7eb8f}
.flash.error{background:#fff2f0;color:#cf1322;border:1px solid #ffccc7}
.badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:12px;background:#f5f5f5}
.mobile-big{font-size:32px;font-weight:700;text-align:center;padding:20px 10px;background:#fffbe6;border:2px solid #ffe58f;border-radius:12px}
.mobile-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mobile-actions .btn{padding:18px 14px;font-size:20px;text-align:center}
.sku-tags{display:flex;flex-wrap:wrap;gap:6px}
.sku-tag{display:inline-block;padding:4px 8px;background:#f5f5f5;border-radius:999px;font-size:12px}
hr{border:none;border-top:1px solid #eee;margin:16px 0}
@media (max-width: 900px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-2{grid-template-columns:1fr}}
@media (max-width: 768px){
  .container{padding:12px}
  .card{padding:14px}
  .grid,.grid-2{grid-template-columns:1fr}
  table,thead,tbody,th,td,tr{display:block}
  thead{display:none}
  tr{border:1px solid #eee;border-radius:10px;margin-bottom:12px;padding:10px}
  td{border-bottom:none;padding:6px 0}
  td::before{content:attr(data-label) "：";font-weight:700;display:inline-block;min-width:96px}
}