:root{
  --brand:#7c3aed; --brand2:#a855f7; --pink:#ec4899;
  --grad:linear-gradient(135deg,#ec4899 0%,#a855f7 100%);
  --grad-btn:linear-gradient(90deg,#8b5cf6 0%,#a855f7 100%);
  --bg:#f4f5f8; --card:#ffffff; --ink:#242936; --muted:#8a90a2; --line:#e9ebf0;
  --side:#17131f; --side2:#1d1826; --side-ink:#b9b4c6; --side-active:#7c3aed;
  --ok:#16a34a; --warn:#d97706; --danger:#dc2626; --info:#2563eb;
  --shadow:0 1px 3px rgba(30,34,45,.06),0 6px 20px rgba(30,34,45,.05);
  --shadow-lg:0 16px 48px rgba(30,34,45,.16);
  --r:14px; --r-sm:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.5}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--ink)}
a{color:inherit;text-decoration:none}
img{display:block}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#d7dae2;border-radius:8px}

/* ---------- LOGIN ---------- */
.login{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr;background:
  radial-gradient(900px 500px at 12% 15%,rgba(139,92,246,.08),transparent 60%),var(--bg)}
.login .brand{display:flex;flex-direction:column;justify-content:center;padding:0 8%}
.login .logo-badge{width:112px;height:112px;border-radius:26px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:14px;text-align:center;box-shadow:0 16px 36px rgba(139,92,246,.28);line-height:1.2;overflow:hidden}
.login .logo-badge img{width:100%;height:100%;object-fit:cover}
.login h1{font-size:34px;font-weight:800;margin-top:26px;color:var(--ink)}
.login .sub{font-size:19px;color:#6b7280;margin-top:8px}
.login .stats{display:flex;gap:40px;margin-top:38px}
.login .stats b{display:block;font-size:24px;color:var(--brand)}
.login .stats span{color:var(--muted);font-size:13px}
.login .tag{margin-top:52px;color:#9aa0b0;display:flex;align-items:center;gap:8px}
.login .panel{display:flex;align-items:center;justify-content:center;padding:0 8%}
.login .card{width:100%;max-width:400px;background:#fff;box-shadow:var(--shadow);border-radius:20px;padding:38px 34px}
.login .card h2{font-size:24px;font-weight:800}
.login .card .hint{color:var(--muted);margin:6px 0 24px}
.field{margin-bottom:16px}
.field label{display:block;color:#5b6273;font-size:13px;margin-bottom:8px;font-weight:500}
.input{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:11px;background:#f7f8fb;outline:none;transition:.15s}
.input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(139,92,246,.12)}
.btn-grad{width:100%;padding:14px;border-radius:11px;background:var(--grad-btn);color:#fff;font-weight:700;font-size:15px;box-shadow:0 6px 16px rgba(139,92,246,.28);transition:.15s;border:1px solid rgba(0,0,0,.03)}
.btn-grad:hover{filter:brightness(1.05);transform:translateY(-1px)}
.login .foot{margin-top:20px;text-align:center;color:#a7adbb;font-size:12px}
.login .err{color:var(--danger);font-size:13px;margin-bottom:10px;min-height:18px}

/* ---------- APP SHELL ---------- */
.shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.sidebar{background:linear-gradient(180deg,var(--side),var(--side2));color:var(--side-ink);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side-brand{display:flex;align-items:center;gap:12px;padding:20px 18px 16px}
.side-logo{width:42px;height:42px;border-radius:11px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:8.5px;text-align:center;flex:none;line-height:1.1;overflow:hidden}
.side-logo img{width:100%;height:100%;object-fit:cover}
.side-brand .t1{font-weight:700;color:#fff;font-size:15px;white-space:nowrap}
.side-brand .t2{font-size:11.5px;color:#8a8398;white-space:nowrap}
.nav{flex:1;overflow-y:auto;padding:8px 12px}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:10px;color:var(--side-ink);margin-bottom:3px;white-space:nowrap;transition:.15s;font-size:14px}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:var(--grad-btn);color:#fff}
.nav-item .ic{width:20px;text-align:center;flex:none;font-size:15px}
.side-foot{padding:10px 12px;border-top:1px solid rgba(255,255,255,.07)}
.collapse-btn{width:100%;padding:8px;color:#8a8398;border-radius:10px}
.collapse-btn:hover{background:rgba(255,255,255,.06);color:#fff}
.user{display:flex;align-items:center;gap:10px;padding:8px 10px;margin-top:4px}
.user .av{width:32px;height:32px;border-radius:9px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}
.user .nm{color:#fff;font-weight:600;font-size:13px}
.user .rl{color:#8a8398;font-size:11px}
.user .logout{margin-left:auto;color:#8a8398;font-size:17px}
.user .logout:hover{color:#fff}
.shell.collapsed{grid-template-columns:78px 1fr}
.collapsed .side-brand .txt,.collapsed .nav .lbl,.collapsed .user .txt{display:none}

/* mobile top bar / drawer */
.topbar{display:none;position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--line);height:56px;align-items:center;gap:12px;padding:0 14px}
.topbar .hamburger{width:40px;height:40px;border-radius:10px;background:#f2f3f7;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink)}
.topbar .tb-title{font-weight:800;font-size:17px}
.topbar .tb-logo{width:30px;height:30px;border-radius:8px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:8px;font-weight:800;overflow:hidden}
.topbar .tb-logo img{width:100%;height:100%;object-fit:cover}
.drawer-backdrop{display:none;position:fixed;inset:0;background:rgba(20,16,32,.4);z-index:45}

.main{padding:18px 30px 60px;min-width:0;overflow-x:hidden}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.page-head h1{font-size:23px;font-weight:800}
.page-head .desc{color:var(--muted);margin-top:4px}
.head-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;align-items:center}

/* ---------- BUTTONS (clear affordance) ---------- */
.btn{padding:10px 16px;border-radius:10px;font-weight:600;font-size:13.5px;display:inline-flex;align-items:center;gap:7px;transition:.15s;border:1px solid transparent;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-grad{background:var(--grad-btn);color:#fff;box-shadow:0 4px 12px rgba(139,92,246,.24);border-color:rgba(0,0,0,.03)}
.btn-blue{background:var(--info);color:#fff;box-shadow:0 4px 12px rgba(37,99,235,.2)}
.btn-soft{background:#fff;color:#3f4654;border-color:#d7dbe4;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.btn-soft:hover{background:#f4f5f9;border-color:#c4c9d6}
.btn-danger{background:#fff;color:var(--danger);border-color:#f3c9c9}
.btn-danger:hover{background:#fdecec}
.btn-sm{padding:7px 12px;font-size:12.5px;border-radius:8px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- CARDS / GRID ---------- */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:20px;border:1px solid #eef0f4}
.grid{display:grid;gap:16px}
.g5{grid-template-columns:repeat(5,1fr)} .g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)} .g2{grid-template-columns:repeat(2,1fr)}

.stat{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);border:1px solid #eef0f4;padding:18px;position:relative;overflow:hidden;cursor:pointer;transition:.18s}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.stat .bar{display:none}
.stat .ic{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;margin-bottom:12px}
.stat .lbl{color:var(--muted);font-size:13px}
.stat .val{font-size:23px;font-weight:800;margin-top:2px}

.quick{display:flex;gap:14px;flex-wrap:wrap}
.quick .q{display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer;width:70px}
.quick .q .qi{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;transition:.15s}
.quick .q:hover .qi{transform:translateY(-3px)}
.quick .q span{font-size:12.5px;color:#5b6273}

/* ---------- TABS ---------- */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:20px;overflow-x:auto}
.tab{padding:11px 16px;color:var(--muted);font-weight:600;display:flex;align-items:center;gap:7px;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tab.active{color:var(--brand);border-bottom-color:var(--brand)}
.tab:hover{color:var(--brand)}

.seg{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.seg .s{flex:1;min-width:150px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;cursor:pointer;transition:.15s}
.seg .s.active{border-color:var(--brand);background:#f6f2ff}
.seg .s .k{color:var(--muted);font-size:13px;display:flex;align-items:center;gap:6px}
.seg .s .n{font-size:22px;font-weight:800;color:var(--brand);margin-top:4px}

/* ---------- TOOLBAR ---------- */
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.search{position:relative;flex:1;min-width:200px}
.search input{width:100%;padding:11px 14px 11px 38px;border:1px solid var(--line);border-radius:10px;background:#f7f8fb;outline:none}
.search input:focus{border-color:var(--brand);background:#fff}
.search .sic{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--muted)}
.sel{padding:10px 13px;border:1px solid var(--line);border-radius:10px;background:#f7f8fb;outline:none;min-width:110px}
.sel:focus{border-color:var(--brand);background:#fff}

/* ---------- TABLE ---------- */
.table-wrap{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);border:1px solid #eef0f4;overflow:hidden}
table{width:100%;border-collapse:collapse}
thead th{text-align:left;padding:14px 16px;color:var(--muted);font-weight:600;font-size:12.5px;background:#fafbfe;border-bottom:1px solid var(--line);white-space:nowrap}
.th-sort{cursor:pointer;user-select:none;transition:.12s}
.th-sort:hover{color:var(--brand)}
.th-sort.active{color:var(--brand)}
.sort-ind{font-size:10px;margin-left:4px;opacity:.55}
tbody td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#faf9fd}
.prod-cell{display:flex;align-items:center;gap:12px}
.thumb{width:44px;height:44px;border-radius:9px;background:#f1f2f6;display:flex;align-items:center;justify-content:center;font-size:20px;flex:none;color:#9aa0b0;overflow:hidden;border:1px solid #eceef3}
.prod-ic{width:40px;height:40px;border-radius:9px;background:#f1f2f6;display:flex;align-items:center;justify-content:center;font-size:18px;flex:none;color:#9aa0b0;border:1px solid #eceef3}
.thumb img{width:100%;height:100%;object-fit:cover}
.prod-cell .pn{font-weight:600}
.prod-cell .pb{color:var(--muted);font-size:12px}
.num{font-variant-numeric:tabular-nums}
.right{text-align:right} .center{text-align:center}
.muted{color:var(--muted)} .small{font-size:12px}
.link{color:var(--brand);cursor:pointer;font-weight:600}
.link:hover{text-decoration:underline}
.icon-btn{width:32px;height:32px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;color:#8a90a2;border:1px solid transparent}
.icon-btn:hover{background:#f1f2f7;color:var(--brand)}
.icon-btn.del:hover{background:#fdecec;color:var(--danger)}

.badge{padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600;display:inline-flex;align-items:center;gap:5px}
.b-blue{background:#eef3fe;color:#2563eb}.b-purple{background:#f2ecfd;color:#7c3aed}.b-green{background:#e9f7ef;color:#16a34a}
.b-orange{background:#fdf1e2;color:#d97706}.b-red{background:#fdeaea;color:#dc2626}.b-gray{background:#eef0f4;color:#6b7280}
.b-pink{background:#fce7f1;color:#db2777}

.empty{padding:54px 20px;text-align:center;color:var(--muted)}
.empty .eic{width:60px;height:60px;border-radius:16px;background:#f2f3f7;color:#b3b8c4;display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 14px}

/* ---------- MODAL ---------- */
.mask{position:fixed;inset:0;background:rgba(20,16,32,.45);backdrop-filter:blur(2px);display:flex;align-items:flex-start;justify-content:center;padding:40px 20px;z-index:100;overflow:auto}
.modal{background:#fff;border-radius:16px;width:100%;max-width:540px;box-shadow:var(--shadow-lg);animation:pop .18s ease}
.modal.lg{max-width:800px} .modal.xl{max-width:980px}
@keyframes pop{from{transform:translateY(12px) scale(.98);opacity:0}to{transform:none;opacity:1}}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line)}
.modal-head h3{font-size:17px;font-weight:800}
.modal-close{width:32px;height:32px;border-radius:8px;color:#8a90a2;font-size:20px}
.modal-close:hover{background:#f1f2f7}
.modal-body{padding:20px 22px;max-height:70vh;overflow:auto}
.modal-foot{padding:14px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.form-grid .full{grid-column:1/-1}
.flabel{display:block;font-size:13px;color:#5b6273;margin-bottom:6px;font-weight:600}
.finput{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#f7f8fb;outline:none}
.finput:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(139,92,246,.1)}
textarea.finput{resize:vertical;min-height:70px}

/* ---------- TOAST ---------- */
#toast-root{position:fixed;top:22px;right:22px;z-index:200;display:flex;flex-direction:column;gap:10px}
.toast{padding:12px 16px;border-radius:11px;background:#fff;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;font-weight:600;animation:slide .2s ease;border-left:4px solid var(--brand);min-width:200px}
.toast.ok{border-left-color:var(--ok)} .toast.err{border-left-color:var(--danger)} .toast.warn{border-left-color:var(--warn)}
@keyframes slide{from{transform:translateX(30px);opacity:0}to{transform:none;opacity:1}}

/* ---------- CHART ---------- */
.chart-card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);border:1px solid #eef0f4;padding:18px 20px}
.chart-card h4{font-size:15px;font-weight:700;margin-bottom:2px}
.chart-card .ch-sub{color:var(--muted);font-size:12.5px;margin-bottom:12px}

/* ---------- CART ---------- */
.cart-line{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line)}
.cart-line .grow{flex:1;min-width:0}
.qty-box{display:flex;align-items:center;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.qty-box button{width:30px;height:30px;background:#f4f5f9;color:#5b6273;font-size:16px}
.qty-box input{width:46px;text-align:center;border:none;outline:none;height:30px;background:#fff}

/* ---------- PERMISSION TREE ---------- */
.perm-tree{border:1px solid var(--line);border-radius:12px;max-height:340px;overflow:auto}
.perm-group{border-bottom:1px solid var(--line);padding:12px 14px}
.perm-group:last-child{border-bottom:none}
.perm-group .gh{display:flex;align-items:center;gap:8px;font-weight:700}
.perm-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;padding-left:22px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;font-size:12.5px;cursor:pointer;user-select:none;color:#5b6273;background:#fff}
.chip.on{border-color:var(--brand);background:#f2ecfd;color:var(--brand)}
.count{margin-left:auto;color:var(--muted);font-size:12px}

/* ---------- PRINT (in-page preview overlay) ---------- */
#print-root{display:none}
.doc{color:#111;font-size:13px}
.doc h2{text-align:center;font-size:20px;margin:0 0 2px;letter-spacing:6px}
.doc .doc-sub{text-align:center;color:#555;margin-bottom:16px;font-size:12px;letter-spacing:2px}
.doc .meta{display:flex;justify-content:space-between;margin-bottom:8px;flex-wrap:wrap;gap:8px}
.doc table{width:100%;border-collapse:collapse;margin:10px 0}
.doc th,.doc td{border:1px solid #999;padding:7px 9px;font-size:12px;text-align:left}
.doc th{background:#f0f0f0}
.doc .right{text-align:right}.doc .center{text-align:center}
.doc .totals{text-align:right;margin-top:10px;font-size:14px;font-weight:700}
.doc img{max-width:44px;max-height:44px}
.receipt{width:280px;margin:0 auto;font-family:"Courier New",monospace;font-size:12px}
.receipt h3{text-align:center;font-size:16px;margin:6px 0}
.receipt .rc-line{display:flex;justify-content:space-between}
.receipt hr{border:none;border-top:1px dashed #000;margin:8px 0}
body.printing #print-root{display:block;position:fixed;inset:0;z-index:9999;background:#f4f5f8;overflow:auto}
.print-bar{position:sticky;top:0;display:flex;justify-content:space-between;align-items:center;padding:12px 18px;background:#1f2430;color:#fff;font-weight:700;z-index:2}
.print-body{max-width:840px;margin:20px auto;background:#fff;padding:28px;box-shadow:var(--shadow);border-radius:8px}
@media print{
  body.printing *{visibility:hidden}
  body.printing #print-root,body.printing #print-root *{visibility:visible}
  body.printing #print-root{position:absolute;inset:0;background:#fff;overflow:visible}
  .print-bar{display:none!important}
  .print-body{max-width:none;margin:0;padding:0;box-shadow:none;border-radius:0}
  .doc table{display:table;width:100%;border-collapse:collapse}
  .doc thead{display:table-header-group}
  .doc tbody{display:table-row-group}
  .doc tr{display:table-row;background:none;border:none;box-shadow:none;padding:0}
  .doc td,.doc th{display:table-cell;border:1px solid #999;padding:7px 9px;text-align:left}
  @page{margin:12mm}
}

/* ---------- HOVER ZOOM ---------- */
.hover-zoom{position:fixed;z-index:300;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);padding:10px;display:none;align-items:center;justify-content:center;width:240px;height:240px;pointer-events:none}
.hover-zoom img{max-width:100%;max-height:100%;object-fit:contain}
.hover-zoom .gz{font-size:130px;line-height:1}
.thumb{cursor:zoom-in}

/* ---------- RESPONSIVE ---------- */
@media(max-width:1200px){.g5{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:980px){.g5{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){
  .topbar{display:flex}
  .shell,.shell.collapsed{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;width:260px;z-index:50;transform:translateX(-100%);transition:transform .25s ease}
  body.drawer-open .sidebar{transform:none;box-shadow:var(--shadow-lg)}
  body.drawer-open .drawer-backdrop{display:block}
  .collapsed .side-brand .txt,.collapsed .nav .lbl,.collapsed .user .txt{display:block}
  .collapse-btn{display:none}
  .main{padding:16px 14px 70px}
  .g5,.g4,.g3,.g2{grid-template-columns:1fr}
  .login{grid-template-columns:1fr}
  .login .brand{display:none}
  .login .panel{padding:30px 18px}
  .form-grid{grid-template-columns:1fr}
  .head-actions{width:100%}
  .head-actions .btn{flex:1 1 auto;justify-content:center}
  .modal{max-width:100%}
  .mask{padding:0;align-items:stretch}
  .modal{border-radius:0;min-height:100vh;display:flex;flex-direction:column}
  .modal-body{max-height:none;flex:1}
  /* tables -> cards (仅列表表格，勿影响打印单据 .doc) */
  .table-wrap{background:transparent;border:none;box-shadow:none;overflow:visible}
  .table-wrap table{display:block}
  .table-wrap thead{display:none}
  .table-wrap tbody{display:flex;flex-direction:column;gap:12px}
  .table-wrap tbody tr{display:block;background:#fff;border:1px solid #eef0f4;border-radius:12px;box-shadow:var(--shadow);padding:6px 14px}
  .table-wrap tbody tr:hover{background:#fff}
  .table-wrap tbody td{display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px dashed #f0f1f5;padding:11px 0;text-align:right}
  .table-wrap tbody td:last-child{border-bottom:none}
  .table-wrap tbody td::before{content:attr(data-label);color:var(--muted);font-weight:600;font-size:12.5px;text-align:left;flex:none}
  .table-wrap tbody td:not([data-label])::before{display:none}
  .prod-cell{justify-content:flex-end}
  .right,.center{text-align:right}
  .quick{gap:10px}.quick .q{width:60px}
}
@media(max-width:420px){.g5,.g4,.g3,.g2{grid-template-columns:1fr}.stat .val{font-size:20px}}