:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --bg:#f1f5f9;
  --card:#fff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e2e8f0;
  --danger:#dc2626;
  --success:#16a34a;
  --warning:#d97706;
  --radius:10px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:"Microsoft YaHei","PingFang SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.5;
}
a{color:var(--primary);text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:14px}
input,select,textarea{
  border:1px solid var(--border);
  border-radius:8px;
  padding:9px 10px;
  background:#fff;
  color:var(--text);
  outline:none;
  width:100%;
}
input:focus,select:focus,textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(37,99,235,.12);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--text);
  padding:8px 14px;
  border-radius:8px;
  cursor:pointer;
  font-size:14px;
  transition:.15s;
  line-height:1.3;
}
a.btn{display:inline-flex}
.btn:hover{border-color:#cbd5e1;background:#f8fafc}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}
.btn-danger{border-color:#fecaca;color:var(--danger);background:#fff}
.btn-danger:hover{background:#fef2f2}
.btn-sm{padding:4px 10px;font-size:12px;border-radius:6px}
.btn-ghost{border-color:transparent;background:transparent;color:var(--muted);padding:4px 8px}
.btn-ghost:hover{background:#f1f5f9;border-color:transparent}
.btn[disabled]{opacity:.6;cursor:not-allowed}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
}
.panel-title{font-size:15px;font-weight:600;margin-bottom:12px}
.table-wrap{
  overflow:auto;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
}
.table{width:100%;border-collapse:collapse;min-width:720px}
.table th{
  background:#f8fafc;
  text-align:left;
  font-weight:600;
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
}
.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--border)}
.table td{font-size:13px}
.table tr:last-child td{border-bottom:0}
.table tbody tr:hover td{background:#f8fafc}
.table td .btn+.btn{margin-left:6px}
.card .table-wrap{border:0;border-radius:0;padding:0}
.card .table{min-width:0}
.empty{padding:36px 10px;text-align:center;color:var(--muted)}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.badge-blue{background:#dbeafe;color:#1d4ed8}
.badge-green{background:#dcfce7;color:#15803d}
.badge-red{background:#fee2e2;color:#b91c1c}
.badge-gray{background:#f1f5f9;color:#475569}
.badge-orange{background:#ffedd5;color:#c2410c}
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.toolbar .search{max-width:280px}
.toolbar .spacer{flex:1}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-item{display:flex;flex-direction:column;gap:6px}
.form-item.full{grid-column:1/-1}
.form-item label{font-size:13px;color:var(--muted)}
.form-msg{color:var(--danger);font-size:13px;margin-top:10px;min-height:18px}
.modal-mask{
  position:fixed;
  inset:0;
  background:rgba(15,23,42,.5);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:100;
  padding:20px;
}
.modal-mask.show{display:flex}
.modal{
  background:#fff;
  border-radius:12px;
  width:100%;
  max-width:660px;
  max-height:90vh;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  box-shadow:0 24px 60px rgba(0,0,0,.28);
}
.modal-hd{
  padding:14px 18px;
  border-bottom:1px solid var(--border);
  font-weight:600;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.modal-bd{padding:18px;overflow:auto}
.modal-ft{padding:12px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}
.items-editor{border:1px solid var(--border);border-radius:8px;overflow:hidden}
.items-row{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr 60px;
  gap:8px;
  padding:8px;
  align-items:center;
  border-bottom:1px solid var(--border);
  background:#fff;
}
.items-row:last-child{border-bottom:0}
.items-row.head{background:#f8fafc;font-size:12px;color:var(--muted)}
.items-row input,.items-row select{padding:6px 8px}
.items-total{
  display:flex;
  justify-content:flex-end;
  gap:8px;
  padding:10px 12px;
  background:#f8fafc;
  border-top:1px solid var(--border);
  font-size:14px;
}
.items-total strong{color:var(--primary);font-size:16px}
.settle-block{margin-top:14px;border:1px solid var(--border);border-radius:8px;padding:12px;background:#f8fafc;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.settle-item{display:flex;justify-content:space-between;align-items:center;gap:8px}
.settle-item span{font-size:13px;color:var(--muted)}
.settle-item strong{font-weight:600}
.settle-item input{max-width:160px;padding:6px 8px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}
.stat{display:flex;flex-direction:column;gap:6px}
.stat-label{font-size:13px;color:var(--muted)}
.stat-num{font-size:24px;font-weight:700}
.muted{color:var(--muted)}
.text-danger{color:var(--danger)}
.text-success{color:var(--success)}
.home-wrap{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  background:radial-gradient(circle at 20% 15%,#1e40af 0,#0f172a 60%);
}
.home-panel{width:100%;max-width:760px;text-align:center;color:#e2e8f0}
.home-logo{font-size:30px;font-weight:700;color:#fff;letter-spacing:3px}
.home-sub{margin:10px 0 30px;color:#94a3b8}
.home-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.home-card{
  display:block;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:16px;
  padding:32px 20px;
  color:#e2e8f0;
  transition:.2s;
}
.home-card:hover{transform:translateY(-4px);background:rgba(37,99,235,.28);border-color:#3b82f6}
.home-icon{
  width:64px;
  height:64px;
  margin:0 auto 14px;
  border-radius:16px;
  background:linear-gradient(135deg,#3b82f6,#60a5fa);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  color:#fff;
  font-size:17px;
  letter-spacing:1px;
}
.home-name{font-size:18px;font-weight:600;color:#fff}
.home-desc{margin-top:8px;font-size:13px;color:#94a3b8}
.login-wrap{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:20px;
  background:linear-gradient(135deg,#0f172a,#1e3a8a);
}
.login-card{
  width:100%;
  max-width:380px;
  background:#fff;
  border-radius:16px;
  padding:32px 28px;
  box-shadow:0 22px 55px rgba(0,0,0,.35);
}
.login-card h1{margin:0;font-size:20px;text-align:center}
.login-tip{text-align:center;color:var(--muted);font-size:13px;margin:8px 0 20px}
.login-card label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
.login-err{min-height:20px;color:var(--danger);font-size:13px;margin-top:10px}
.login-btn{width:100%;margin-top:6px;padding:10px}
.login-links{margin-top:14px;text-align:center;font-size:13px}
.login-links a{color:var(--muted)}
@media (max-width:640px){
  .home-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}