:root{
  --primary:#1677ff;
  --danger:#ff4d4f;
  --text:#1f2329;
  --muted:#6b7280;
  --border:#e5e7eb;
  --bg:#f5f7fb;
  --card:#ffffff;
  --shadow: 0 10px 30px rgba(31,35,41,.08);
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
}
.wrap{max-width:1150px;margin:28px auto;padding:0 16px;}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  box-shadow:var(--shadow);
  padding:22px 22px 16px;
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border:1px solid var(--border);border-radius:14px;
  background:#fff;box-shadow: 0 6px 18px rgba(31,35,41,.05);
  margin-bottom:14px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--primary);}
.menu{display:flex;gap:14px;flex-wrap:wrap;}
.menu a{color:#111827;text-decoration:none;font-size:14px;padding:6px 10px;border-radius:999px;}
.menu a.active{background:#eef4ff;color:#1d4ed8;border:1px solid #dbeafe;}
.steps{display:flex;align-items:center;gap:10px;padding:8px 6px 18px;overflow:auto;}
.step{display:flex;align-items:center;gap:10px;min-width:170px;white-space:nowrap;color:var(--muted);}
.badge{
  width:28px;height:28px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border);
  background:#fff;font-weight:700;
}
.step.active{color:var(--primary);}
.step.active .badge{background:var(--primary);color:#fff;border-color:var(--primary);}
.step.done{color:var(--primary);}
.step.done .badge{background:#fff;color:var(--primary);border-color:var(--primary);}
.line{flex:1;height:2px;background:var(--border);min-width:40px;}
.title{font-size:18px;font-weight:900;margin:6px 0 16px;}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px;}
.item{display:flex;align-items:center;gap:12px;min-height:44px;}
.label{width:190px;font-size:14px;color:#374151;display:flex;align-items:center;gap:6px;flex:0 0 auto;}
.label::before{content:"*";color:transparent;margin-right:2px;font-weight:800;}
.label.req::before{color:var(--danger);}
input,select{
  width:100%;height:40px;border:1px solid var(--border);
  border-radius:10px;padding:0 12px;outline:none;background:#fff;font-size:14px;
}
input:focus,select:focus{border-color: rgba(22,119,255,.6);box-shadow:0 0 0 3px rgba(22,119,255,.12);}
input[disabled]{background:#f3f4f6;color:#111827;cursor:not-allowed;}
.row-full{grid-column:1 / -1;}
.hint{font-size:12px;color:var(--muted);margin-top:4px;line-height:1.45;}
.actions{display:flex;justify-content:center;gap:12px;padding:16px 0 4px;flex-wrap:wrap;}
.btn{
  height:36px;padding:0 18px;border-radius:10px;border:1px solid var(--border);
  background:#fff;cursor:pointer;font-size:14px;
}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff;}
.btn.primary[disabled], .btn.danger[disabled]{opacity:.55;cursor:not-allowed;}
.btn.gray{background:#f3f4f6;border-color:#f3f4f6;}
.page{display:none;}
.page.show{display:block;}
.box{padding:18px;border-radius:14px;border:1px dashed var(--border);background:#fff;}
.center{display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 0;text-align:center;}
.success{color:#16a34a;font-weight:800;}
.fail{color:#dc2626;font-weight:800;}
.price{font-size:34px;font-weight:900;color:var(--danger);}
.sub{color:var(--muted);font-size:13px;}
.top-actions{display:flex;justify-content:flex-end;margin:-6px 0 10px;gap:10px;flex-wrap:wrap;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 10px;border-radius:999px;
  background:#eef4ff;color:#1d4ed8;font-size:12px;border:1px solid #dbeafe;
}
.alert{
  border:1px solid #fde68a;background:#fffbeb;color:#92400e;
  padding:10px 12px;border-radius:12px;font-size:13px;margin:10px 0;
}
@media (max-width: 900px){.grid{grid-template-columns:1fr;}.label{width:165px;}}
/* Admin UI */
.admin-wrap{max-width:1200px;margin:20px auto;padding:0 16px;}
.admin-card{background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);padding:16px;}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:space-between;margin-bottom:12px;}
.search{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.search input{width:320px;max-width:70vw;}
table{width:100%;border-collapse:collapse;}
th,td{border-bottom:1px solid var(--border);padding:10px 8px;font-size:13px;vertical-align:top;}
th{color:#374151;background:#fafafa;text-align:left;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 8px;border-radius:999px;border:1px solid var(--border);font-size:12px;}
.badge.gray{background:#f3f4f6;color:#374151;}
.badge.blue{background:#eef4ff;color:#1d4ed8;border-color:#dbeafe;}
.badge.yellow{background:#fffbeb;color:#92400e;border-color:#fde68a;}
.badge.green{background:#ecfdf5;color:#065f46;border-color:#a7f3d0;}
.badge.red{background:#fef2f2;color:#991b1b;border-color:#fecaca;}
.pill{display:inline-flex;align-items:center;padding:4px 8px;border-radius:999px;background:#f3f4f6;border:1px solid var(--border);font-size:12px;}
.actions-inline{display:flex;gap:8px;flex-wrap:wrap;}

/* 2026-04 custom updates */
.nav{
  position:sticky;
  top:0;
  z-index:999;
  min-height:86px;
  padding:18px 34px;
  border-radius:0 0 18px 18px;
}
.nav .brand img{width:200px;max-height:60px;object-fit:contain;}
.menu a{font-size:16px;padding:9px 16px;}
.steps{position:sticky;top:86px;z-index:50;background:#fff;border-bottom:1px solid var(--border);padding-top:12px;}
.payment-grid{width:min(900px,100%);display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:8px auto 4px;text-align:left;}
.payment-card{border:1px solid var(--border);border-radius:14px;padding:16px;background:#fafcff;}
.payment-title{font-weight:900;margin-bottom:12px;color:#1d4ed8;}
.qr-box{height:220px;border:1px dashed #cbd5e1;border-radius:12px;display:flex;align-items:center;justify-content:center;background:#fff;overflow:hidden;}
.qr-box img{max-width:100%;max-height:100%;object-fit:contain;}
.qr-placeholder{display:none;align-items:center;justify-content:center;color:var(--muted);font-size:14px;}
.bank-info p{margin:8px 0;line-height:1.7;}
@media (max-width: 768px){
  .nav{min-height:70px;padding:12px 16px;}
  .nav .brand img{width:140px;}
  .steps{top:70px;}
  .payment-grid{grid-template-columns:1fr;}
}