:root{
  --brand:#2563eb; --brand-dark:#1d4ed8; --bg:#f5f7fb; --card:#ffffff;
  --text:#1e293b; --muted:#64748b; --border:#e2e8f0; --sidebar:#0f172a;
  --sidebar-text:#cbd5e1; --sidebar-active:#2563eb; --ok:#16a34a; --danger:#dc2626;
}
*{box-sizing:border-box;}
body{margin:0;font-family:"Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;}
a{color:var(--brand);text-decoration:none;}
a:hover{text-decoration:underline;}

/* layout */
.layout{display:flex;min-height:100vh;}
.sidebar{width:220px;background:var(--sidebar);color:var(--sidebar-text);flex-shrink:0;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;}
.sidebar .brand{padding:20px 18px;font-size:17px;font-weight:700;color:#fff;
  border-bottom:1px solid rgba(255,255,255,.08);letter-spacing:.5px;}
.sidebar .brand small{display:block;font-size:11px;color:#64748b;font-weight:400;margin-top:4px;}
.nav{padding:10px 0;overflow-y:auto;flex:1;}
.nav a{display:flex;align-items:center;gap:10px;padding:11px 20px;color:var(--sidebar-text);
  font-size:14px;border-left:3px solid transparent;}
.nav a:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff;}
.nav a.active{background:rgba(37,99,235,.18);border-left-color:var(--brand);color:#fff;}
.nav .group{padding:14px 20px 6px;font-size:11px;color:#475569;text-transform:uppercase;letter-spacing:1px;}
.nav .ico{width:18px;text-align:center;}

.main{flex:1;display:flex;flex-direction:column;min-width:0;}
.topbar{height:58px;background:var(--card);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:10;}
.topbar .title{font-size:16px;font-weight:600;}
.topbar .user{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px;}
.badge-role{background:#eef2ff;color:var(--brand);padding:3px 10px;border-radius:20px;font-size:12px;}
.content{padding:24px;flex:1;}

/* cards */
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;
  box-shadow:0 1px 3px rgba(15,23,42,.04);}
.card-body{padding:20px;}
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap;gap:12px;}
.page-head h2{margin:0;font-size:20px;}

/* stat cards */
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px;margin-bottom:24px;}
.stat{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px 20px;}
.stat .num{font-size:28px;font-weight:700;color:var(--brand);}
.stat .lbl{color:var(--muted);margin-top:4px;font-size:13px;}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:7px;border:1px solid transparent;
  font-size:14px;cursor:pointer;background:var(--brand);color:#fff;transition:.15s;line-height:1;}
.btn:hover{background:var(--brand-dark);text-decoration:none;color:#fff;}
.btn.sm{padding:5px 11px;font-size:13px;}
.btn.ghost{background:#fff;color:var(--text);border-color:var(--border);}
.btn.ghost:hover{background:#f1f5f9;color:var(--text);}
.btn.danger{background:var(--danger);}
.btn.danger:hover{background:#b91c1c;}
.btn.ok{background:var(--ok);}
.btn.ok:hover{background:#15803d;}

/* tables */
table.tbl{width:100%;border-collapse:collapse;background:var(--card);}
table.tbl th,table.tbl td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--border);vertical-align:middle;}
table.tbl th{background:#f8fafc;color:var(--muted);font-weight:600;font-size:13px;white-space:nowrap;}
table.tbl tr:hover td{background:#f8fafc;}
table.tbl .actions{white-space:nowrap;text-align:right;}
table.tbl .num{text-align:right;font-variant-numeric:tabular-nums;}

/* forms */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.form-grid.small{grid-template-columns:repeat(2,1fr);gap:10px;}
.form-grid.small .field label{font-size:12px;margin-bottom:2px;}
.form-grid.small .field input{padding:6px 8px;font-size:13px;}
.form-grid .full{grid-column:1/-1;}
.field label{display:block;margin-bottom:6px;color:var(--muted);font-size:13px;}
.field input,.field select,.field textarea{width:100%;padding:9px 11px;border:1px solid var(--border);
  border-radius:7px;font-size:14px;font-family:inherit;background:#fff;color:var(--text);}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(37,99,235,.12);}
.field textarea{resize:vertical;min-height:70px;}
.form-actions{margin-top:22px;display:flex;gap:10px;}

/* toolbar */
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap;}
.toolbar input,.toolbar select{padding:8px 11px;border:1px solid var(--border);border-radius:7px;font-size:14px;}

/* flash */
.flash{padding:11px 16px;border-radius:8px;margin-bottom:14px;font-size:14px;}
.flash.success{background:#dcfce7;color:#166534;}
.flash.danger{background:#fee2e2;color:#991b1b;}
.flash.warning{background:#fef9c3;color:#854d0e;}
.flash.info{background:#dbeafe;color:#1e40af;}

.pill{display:inline-block;padding:2px 9px;border-radius:12px;font-size:12px;background:#f1f5f9;color:var(--muted);}
.pill.on{background:#dcfce7;color:#166534;}
.pill.off{background:#fee2e2;color:#991b1b;}
.muted{color:var(--muted);}
.empty{text-align:center;padding:40px;color:var(--muted);}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1e3a8a,#2563eb);}
.login-card{background:#fff;border-radius:14px;padding:38px 34px;width:360px;box-shadow:0 20px 50px rgba(0,0,0,.25);}
.login-card h1{margin:0 0 6px;font-size:22px;text-align:center;}
.login-card p.sub{text-align:center;color:var(--muted);margin:0 0 24px;font-size:13px;}
.login-card .field{margin-bottom:16px;}
.login-card .btn{width:100%;justify-content:center;padding:11px;}
.login-hint{margin-top:18px;font-size:12px;color:var(--muted);text-align:center;line-height:1.7;}

/* category tree */
.tree{list-style:none;padding-left:0;margin:0;}
.tree ul{list-style:none;padding-left:24px;margin:4px 0;border-left:1px dashed var(--border);}
.tree li{padding:6px 0;}
.tree .node{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;border-radius:6px;}
.tree .node:hover{background:#f1f5f9;}
.tree .node .nm{font-weight:500;}

/* quotation editor */
.qsys{border:1px solid var(--border);border-radius:10px;margin-bottom:18px;overflow:hidden;}
.qsys-head{display:flex;align-items:center;gap:10px;background:#f1f5f9;padding:10px 14px;}
.qsys-head input{flex:1;border:1px solid var(--border);padding:7px 10px;border-radius:6px;font-weight:600;}
.qitems{width:100%;border-collapse:collapse;}
.qitems th,.qitems td{padding:7px 8px;border-bottom:1px solid var(--border);font-size:13px;}
.qitems th{background:#fafbfc;color:var(--muted);}
.qitems input{width:100%;border:1px solid transparent;padding:6px;border-radius:5px;font-size:13px;background:transparent;}
.qitems input:focus{border-color:var(--brand);background:#fff;outline:none;}
.qitems .num{text-align:right;font-variant-numeric:tabular-nums;}
.qsys-foot{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:#fafbfc;}
.subtotal{font-weight:600;}
.grand-total{text-align:right;font-size:18px;font-weight:700;color:var(--brand);padding:14px 4px;}

/* print doc */
.doc{max-width:900px;margin:0 auto;background:#fff;padding:40px;}
.doc h1{text-align:center;font-size:24px;margin:0 0 4px;}
.doc .doc-sub{text-align:center;color:var(--muted);margin-bottom:24px;}
.doc-meta{display:grid;grid-template-columns:1fr 1fr;gap:6px 30px;margin-bottom:20px;font-size:14px;}
.doc-meta div{padding:4px 0;border-bottom:1px dotted var(--border);}
.doc table{width:100%;border-collapse:collapse;margin-bottom:6px;}
.doc table th,.doc table td{border:1px solid #cbd5e1;padding:7px 9px;font-size:13px;}
.doc table th{background:#f1f5f9;}
.doc .sys-title{background:#e0e7ff;font-weight:700;}
.doc .sub-row td{text-align:right;font-weight:600;background:#f8fafc;}
.doc .grand td{text-align:right;font-weight:700;font-size:15px;background:#eef2ff;}
.doc .num{text-align:right;font-variant-numeric:tabular-nums;}
@media print{
  .no-print{display:none !important;}
  body{background:#fff;}
  .doc{max-width:none;padding:0;}
}

/* modal */
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.45);display:flex;
  align-items:center;justify-content:center;z-index:100;padding:20px;}
.modal{background:#fff;border-radius:12px;width:560px;max-width:100%;max-height:86vh;display:flex;flex-direction:column;
  box-shadow:0 20px 60px rgba(0,0,0,.3);overflow:hidden;}
.modal-head{padding:16px 20px;border-bottom:1px solid var(--border);font-weight:600;font-size:16px;
  display:flex;align-items:center;justify-content:space-between;}
.modal-head .close{cursor:pointer;font-size:22px;line-height:1;color:var(--muted);}
.modal-body{padding:18px 20px;overflow-y:auto;}
.modal-foot{padding:14px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px;}
.cat-head{font-size:13px;margin-bottom:8px;}
.modal-body .chk{display:flex;align-items:center;gap:8px;padding:6px 4px;border-bottom:1px solid var(--border);font-size:14px;cursor:pointer;}
.modal-body .chk input{width:auto;}

/* 选择产品：先分类后产品 */
.pick-cat{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.pick-cat label{font-weight:600;white-space:nowrap;}
.pick-cat select{flex:1;max-width:100%;}
.pick-list{max-height:46vh;overflow-y:auto;border:1px solid var(--border);border-radius:8px;}
.pick-row{display:flex;align-items:center;gap:10px;padding:8px 10px;border-bottom:1px solid var(--border);}
.pick-row:last-child{border-bottom:none;}
.pick-row .pick-name{flex:1;font-size:14px;}
.pick-row .pick-qtywrap{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12px;white-space:nowrap;}
.pick-row.pick-single{justify-content:space-between;}
.pick-btn{white-space:nowrap;text-align:left;max-width:100%;overflow:hidden;text-overflow:ellipsis;}
.pick-manual{margin-top:14px;border-top:1px dashed var(--border);padding-top:10px;}
.pick-manual summary{cursor:pointer;color:var(--brand);font-size:13px;}

/* 行内选品：分类 + 产品名称 */
.pname-input{width:100%;margin-bottom:4px;}
.btn.xs{padding:2px 8px;font-size:12px;line-height:1.4;margin-top:2px;}