:root{
  --brand:#1e5eff; --brand-d:#1746c7; --brand-l:#eaf1ff;
  --bg:#f5f7fa; --card:#fff; --line:#e6e9f0; --text:#1f2937; --muted:#8a93a5;
  --green:#12a150; --red:#e5484d; --amber:#f5a623; --sidebar:#0f1b33;
  --radius:12px; --shadow:0 1px 3px rgba(16,24,40,.06),0 1px 2px rgba(16,24,40,.04);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.hidden{display:none!important}

/* ---------- 登录 ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#0f1b33 0%,#1e3a8a 55%,#1e5eff 100%);padding:20px}
.login-card{background:#fff;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.25);
  width:100%;max-width:400px;padding:40px 34px}
.login-logo{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.login-logo .mark{width:44px;height:44px;border-radius:11px;background:linear-gradient(135deg,var(--brand),#4f86ff);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:20px}
.login-logo h1{font-size:20px;font-weight:700}
.login-sub{color:var(--muted);font-size:13px;margin:4px 0 26px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:#4b5563;margin-bottom:6px;font-weight:500}
.field input{width:100%;height:44px;border:1px solid var(--line);border-radius:9px;padding:0 14px;font-size:15px;
  background:#fbfcfe;transition:.15s}
.field input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-l)}
.btn-login{width:100%;height:46px;background:var(--brand);color:#fff;border:none;border-radius:9px;
  font-size:16px;font-weight:600;margin-top:8px;transition:.15s}
.btn-login:hover{background:var(--brand-d)}
.btn-login:disabled{opacity:.6}
.login-err{color:var(--red);font-size:13px;margin-top:12px;min-height:18px;text-align:center}
.login-hint{margin-top:22px;padding-top:18px;border-top:1px dashed var(--line);font-size:12px;color:var(--muted)}
.login-hint b{color:#4b5563}
.remember{display:flex;align-items:center;gap:7px;font-size:13px;color:#4b5563;margin-top:2px}
.remember input{width:15px;height:15px}

/* ---------- 布局 ---------- */
.app{display:flex;min-height:100vh}
.sidebar{width:224px;background:var(--sidebar);color:#c7d0e0;flex-shrink:0;display:flex;flex-direction:column;
  position:fixed;top:0;bottom:0;left:0;z-index:40;transition:transform .25s}
.brand{display:flex;align-items:center;gap:11px;padding:20px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand .mark{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#4f86ff);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;flex-shrink:0}
.brand .txt b{color:#fff;font-size:15px;display:block;line-height:1.2}
.brand .txt span{font-size:11px;color:#8794ad}
.nav{flex:1;overflow-y:auto;padding:12px 10px}
.nav-item{display:flex;align-items:center;gap:11px;padding:11px 13px;border-radius:9px;cursor:pointer;
  font-size:14px;color:#c7d0e0;margin-bottom:2px;transition:.12s}
.nav-item .ic{width:18px;text-align:center;font-size:16px;opacity:.9}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:var(--brand);color:#fff;font-weight:600}
.nav-sep{font-size:11px;color:#5a6684;padding:14px 13px 6px;letter-spacing:1px}
.side-user{padding:14px 16px;border-top:1px solid rgba(255,255,255,.08);font-size:13px}
.side-user .u-name{color:#fff;font-weight:600}
.side-user .u-role{color:#8794ad;font-size:12px}
.side-user .logout{margin-top:8px;color:#9fb0d0;font-size:12px;cursor:pointer}
.side-user .logout:hover{color:#fff}

.main{flex:1;margin-left:224px;display:flex;flex-direction:column;min-width:0}
.topbar{height:58px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;
  padding:0 22px;position:sticky;top:0;z-index:30;gap:14px}
.hamburger{display:none;font-size:22px;background:none;border:none;color:var(--text)}
.crumb{font-size:14px;color:var(--muted)}
.crumb b{color:var(--text)}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted)}
.content{padding:22px;flex:1}

/* ---------- 卡片/统计 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:20px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.stat .lbl{color:var(--muted);font-size:13px;display:flex;align-items:center;gap:7px}
.stat .val{font-size:26px;font-weight:700;margin-top:8px;letter-spacing:-.5px}
.stat .val.green{color:var(--green)} .stat .val.red{color:var(--red)} .stat .val.blue{color:var(--brand)}
.stat .ic-badge{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:17px}

.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px}
.panel-h{display:flex;align-items:center;padding:15px 18px;border-bottom:1px solid var(--line);gap:12px;flex-wrap:wrap}
.panel-h h3{font-size:15px;font-weight:600}
.panel-h .sub{color:var(--muted);font-size:12px}
.panel-b{padding:16px 18px}
.panel-actions{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}

/* ---------- 表格 ---------- */
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:11px 12px;text-align:left;white-space:nowrap}
th{color:var(--muted);font-weight:600;font-size:12.5px;background:#fafbfd;border-bottom:1px solid var(--line);
  position:sticky;top:0;cursor:default}
th.sortable{cursor:pointer;user-select:none}
th.sortable:hover{color:var(--brand)}
tbody tr{border-bottom:1px solid #f0f2f6}
tbody tr:nth-child(even){background:#fafbfd}
tbody tr:hover{background:var(--brand-l)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.money-red{color:var(--red);font-weight:600}
.money-green{color:var(--green);font-weight:600}
.empty{text-align:center;color:var(--muted);padding:40px 0}

/* ---------- 徽章 ---------- */
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.badge.ok{background:#e7f7ee;color:var(--green)}
.badge.warn{background:#fdf0dd;color:#b7791f}
.badge.err{background:#fdecec;color:var(--red)}
.badge.info{background:var(--brand-l);color:var(--brand)}
.badge.gray{background:#eef0f4;color:#6b7280}

/* ---------- 按钮 ---------- */
.btn{height:34px;padding:0 14px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--text);
  font-size:13px;font-weight:500;display:inline-flex;align-items:center;gap:6px;transition:.12s}
.btn:hover{border-color:#c3ccdb;background:#fafbfd}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn.primary:hover{background:var(--brand-d)}
.btn.sm{height:29px;padding:0 10px;font-size:12.5px}
.btn.ghost{border:none;color:var(--brand);background:transparent}
.btn.danger{color:var(--red);border-color:#f2c4c5}
.btn:disabled{opacity:.5;cursor:not-allowed}
.link{color:var(--brand);cursor:pointer;font-weight:500}
.link:hover{text-decoration:underline}

/* ---------- 筛选区 ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.filters select,.filters input{height:34px;border:1px solid var(--line);border-radius:8px;padding:0 11px;font-size:13px;background:#fff}
.filters input[type=date]{color:var(--text)}
.filters select:focus,.filters input:focus{outline:none;border-color:var(--brand)}

/* ---------- 抽屉/弹窗 ---------- */
.overlay{position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:60;display:flex;opacity:0;pointer-events:none;transition:.2s}
.overlay.show{opacity:1;pointer-events:auto}
.drawer{margin-left:auto;width:640px;max-width:96vw;background:#fff;height:100%;overflow-y:auto;
  transform:translateX(100%);transition:.25s;display:flex;flex-direction:column}
.overlay.show .drawer{transform:none}
.modal{margin:auto;width:520px;max-width:94vw;background:#fff;border-radius:14px;overflow:hidden;
  transform:translateY(12px) scale(.98);transition:.2s;max-height:92vh;display:flex;flex-direction:column}
.overlay.show .modal{transform:none}
.dh{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.dh h3{font-size:16px;font-weight:600}
.dh .x{margin-left:auto;font-size:22px;color:var(--muted);cursor:pointer;line-height:1}
.db{padding:20px;overflow-y:auto;flex:1}
.df{padding:14px 20px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end;background:#fafbfd}

.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.form-item{display:flex;flex-direction:column}
.form-item.full{grid-column:1/-1}
.form-item label{font-size:13px;color:#4b5563;margin-bottom:6px;font-weight:500}
.form-item label .req{color:var(--red)}
.form-item input,.form-item select,.form-item textarea{height:38px;border:1px solid var(--line);border-radius:8px;
  padding:0 11px;font-size:14px;background:#fff;font-family:inherit}
.form-item textarea{height:auto;padding:9px 11px;resize:vertical}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}
.form-item input.error{border-color:var(--red);background:#fff6f6}
.field-tip{font-size:12px;color:var(--red);margin-top:4px;min-height:15px}

/* 明细行编辑 */
.items-head,.item-row{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.2fr 32px;gap:8px;align-items:center}
.items-head{font-size:12px;color:var(--muted);margin-bottom:8px;padding:0 2px;font-weight:600}
.item-row{margin-bottom:8px}
.item-row input,.item-row select{height:36px;border:1px solid var(--line);border-radius:7px;padding:0 8px;font-size:13px;width:100%}
.item-row input.error{border-color:var(--red);background:#fff6f6}
.item-row .del{background:#fdecec;color:var(--red);border:none;border-radius:7px;height:34px;font-size:16px}
.item-sub{font-size:13px;text-align:right;color:#4b5563;padding-right:4px;font-variant-numeric:tabular-nums}
.total-line{display:flex;justify-content:flex-end;gap:16px;font-size:15px;margin-top:10px;padding-top:12px;border-top:1px dashed var(--line)}
.total-line b{color:var(--brand);font-size:18px}
.stock-tip{font-size:11px;color:var(--muted);margin-top:2px}
.stock-tip.bad{color:var(--red)}

/* toast */
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%) translateY(-20px);z-index:100;
  background:#1f2937;color:#fff;padding:11px 20px;border-radius:9px;font-size:14px;opacity:0;transition:.25s;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.ok{background:var(--green)} .toast.err{background:var(--red)}

/* charts / misc */
.chart-box{height:340px;width:100%}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.list-lite{display:flex;flex-direction:column}
.list-lite .row{display:flex;align-items:center;gap:12px;padding:11px 4px;border-bottom:1px solid #f0f2f6}
.list-lite .row:last-child{border:none}
.list-lite .row .name{font-weight:500}
.list-lite .row .meta{color:var(--muted);font-size:12px}
.list-lite .row .right{margin-left:auto;text-align:right}
.quick-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.quick{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;text-align:center;
  cursor:pointer;transition:.15s;box-shadow:var(--shadow)}
.quick:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 6px 18px rgba(30,94,255,.12)}
.quick .ic{width:46px;height:46px;border-radius:12px;background:var(--brand-l);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin:0 auto 10px}
.quick .t{font-weight:600;font-size:14px}
.loading{text-align:center;color:var(--muted);padding:50px 0}
.spinner{width:26px;height:26px;border:3px solid var(--line);border-top-color:var(--brand);border-radius:50%;
  animation:spin .8s linear infinite;margin:0 auto 10px}
@keyframes spin{to{transform:rotate(360deg)}}
.pager{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:12px 18px;font-size:13px;color:var(--muted)}
.pager button{height:30px;min-width:30px;padding:0 8px;border:1px solid var(--line);background:#fff;border-radius:7px}
.pager button:disabled{opacity:.4}

.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;margin-bottom:16px}
.detail-grid .k{color:var(--muted);font-size:12px}
.detail-grid .v{font-weight:600;margin-top:2px}
.section-title{font-size:13px;font-weight:600;color:#4b5563;margin:16px 0 8px}

/* ---------- 响应式 ---------- */
@media(max-width:920px){
  .two-col{grid-template-columns:1fr}
}
@media(max-width:768px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .hamburger{display:block}
  .content{padding:14px}
  .form-row{grid-template-columns:1fr}
  .stat .val{font-size:22px}
  .items-head{display:none}
  .item-row{grid-template-columns:1fr 1fr;gap:6px;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fafbfd}
  .item-row .del{grid-column:2;justify-self:end;width:40px}
  .item-row .prod-cell{grid-column:1/-1}
  .drawer{width:100%}
  .topbar-right .hide-sm{display:none}
  .mask-active{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:39}
}