:root {
  --primary: #1677ff; --primary-soft: #e6f0ff; --red: #f5222d; --orange: #fa8c16; --green: #52c41a; --gray: #8c8c8c;
  --text: #1f1f1f; --muted: #666; --line: #ebedf0; --bg: #f5f6f8; --card: #fff; --head: #fafafa; --warn-bg: #fffbe6;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 13px/1.5 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text); background: var(--bg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.layout { display: grid; grid-template-columns: 216px 1fr; min-height: 100vh; }
.side { background: var(--card); border-right: 1px solid var(--line); padding: 0 0 24px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { display: flex; align-items: center; gap: 8px; padding: 18px 20px; font-size: 16px; font-weight: 600; border-bottom: 1px solid var(--line); }
.brand img { width: 24px; height: 24px; }
.nav-group { padding: 14px 20px 4px; color: var(--text); font-weight: 600; font-size: 14px; }
.nav a { display: block; padding: 7px 20px 7px 34px; color: var(--muted); border-left: 3px solid transparent; }
.nav a:hover { background: var(--bg); text-decoration: none; color: var(--text); }
.nav a.on { color: var(--primary); background: var(--primary-soft); border-left-color: var(--primary); font-weight: 600; }
.nav a.top { padding-left: 20px; font-weight: 600; font-size: 14px; color: var(--text); }
.main { min-width: 0; }
.topbar { height: 56px; background: var(--card); border-bottom: 1px solid var(--line); display: flex; align-items: center;
  justify-content: space-between; padding: 0 24px; position: sticky; top: 0; z-index: 5; }
.topbar .who { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--primary); color: #fff; display: inline-flex;
  align-items: center; justify-content: center; font-weight: 600; }
.content { padding: 20px 24px 40px; max-width: 1680px; }
h1 { font-size: 22px; margin: 0 0 14px; font-weight: 600; }
h2 { font-size: 15px; margin: 0 0 12px; font-weight: 600; }
.sub { color: var(--muted); margin: -8px 0 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 16px 18px; margin-bottom: 16px; }
.grid { display: grid; gap: 16px; }
.grid.k4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.k3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.k2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
.kpi .label { color: var(--muted); }
.kpi .value { font-size: 26px; font-weight: 600; margin-top: 2px; }
.kpi .note { color: var(--gray); font-size: 12px; }
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 14px; flex-wrap: wrap; }
.tabs a { padding: 8px 14px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a.on { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tabs a:hover { text-decoration: none; color: var(--primary); }
.tabs .n { color: var(--gray); margin-left: 4px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.chip { min-width: 150px; padding: 9px 14px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--text); text-align: center; }
.chip:hover { border-color: var(--primary); text-decoration: none; }
.chip.on { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.badge { display: inline-block; min-width: 18px; padding: 0 6px; border-radius: 9px; background: var(--red); color: #fff; font-size: 11px; line-height: 18px; margin-left: 4px; }
.badge.gray { background: #bfbfbf; }
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar .grow { flex: 1; }
input[type=text], input[type=password], input[type=number], input[type=search], select, textarea {
  border: 1px solid #d9d9d9; border-radius: 6px; padding: 6px 10px; font: inherit; background: #fff; min-height: 32px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-soft); }
input.qty { width: 72px; text-align: right; }
.btn { display: inline-flex; align-items: center; gap: 4px; border: 1px solid #d9d9d9; background: #fff; color: var(--text);
  border-radius: 6px; padding: 5px 14px; font: inherit; cursor: pointer; min-height: 32px; white-space: nowrap; }
.btn:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: #4096ff; color: #fff; }
.btn.danger { color: var(--red); border-color: #ffccc7; }
.btn.small { padding: 1px 8px; min-height: 24px; font-size: 12px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
form.inline { display: inline; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--card); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; white-space: nowrap; }
th { background: var(--head); color: var(--muted); font-weight: 500; position: sticky; top: 0; z-index: 1; }
thead tr.group th { text-align: center; border-left: 1px solid var(--line); color: var(--text); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover td { background: #fafcff; }
td.wrap { white-space: normal; min-width: 180px; }
tr.total td { background: var(--head); font-weight: 600; }
.product { display: flex; gap: 10px; align-items: flex-start; min-width: 240px; white-space: normal; }
.product img, .product .ph { width: 48px; height: 64px; border-radius: 4px; object-fit: cover; background: #f0f0f0; flex: none; }
.product .ph { display: flex; align-items: center; justify-content: center; color: #bfbfbf; font-size: 11px; }
.product .t { font-weight: 600; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.tag { display: inline-block; padding: 0 7px; border-radius: 4px; font-size: 12px; line-height: 20px; border: 1px solid; }
.tag.red { color: var(--red); background: #fff1f0; border-color: #ffccc7; }
.tag.orange { color: var(--orange); background: #fff7e6; border-color: #ffd591; }
.tag.green { color: var(--green); background: #f6ffed; border-color: #b7eb8f; }
.tag.gray { color: var(--muted); background: #fafafa; border-color: #d9d9d9; }
.tag.blue { color: var(--primary); background: var(--primary-soft); border-color: #91caff; }
.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.dot.red { background: var(--red); } .dot.orange { background: var(--orange); } .dot.green { background: var(--green); }
.dot.gray { background: #bfbfbf; } .dot.blue { background: var(--primary); }
.flash { padding: 9px 14px; border-radius: 6px; margin-bottom: 12px; border: 1px solid; }
.flash.ok { background: #f6ffed; border-color: #b7eb8f; }
.flash.error { background: #fff1f0; border-color: #ffccc7; }
.flash.warn, .notice { background: var(--warn-bg); border-color: #ffe58f; }
.notice { padding: 9px 14px; border-radius: 6px; margin-bottom: 14px; border: 1px solid #ffe58f; }
.notice ul { margin: 4px 0 0; padding-left: 18px; }
.pager { display: flex; justify-content: flex-end; align-items: center; gap: 6px; margin-top: 12px; color: var(--muted); }
.pager a, .pager span.cur { min-width: 30px; height: 30px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid #d9d9d9; border-radius: 6px; padding: 0 8px; background: #fff; color: var(--text); }
.pager span.cur { border-color: var(--primary); color: #fff; background: var(--primary); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; }
.chart { width: 100%; height: 240px; }
.chart text { font-size: 10px; fill: var(--muted); }
.legend { display: flex; gap: 14px; flex-wrap: wrap; color: var(--muted); margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }
.c0 { fill: #1677ff; background: #1677ff; } .c1 { fill: #fa8c16; background: #fa8c16; } .c2 { fill: #52c41a; background: #52c41a; }
.c3 { fill: #722ed1; background: #722ed1; } .c4 { fill: #13c2c2; background: #13c2c2; } .c5 { fill: #bfbfbf; background: #bfbfbf; }
.bar { height: 8px; border-radius: 4px; background: #f0f0f0; overflow: hidden; min-width: 80px; }
.bar i { display: block; height: 100%; background: var(--primary); }
.login { max-width: 360px; margin: 12vh auto; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 32px; }
.login h1 { text-align: center; }
.login label { display: block; margin: 12px 0 4px; color: var(--muted); }
.login input { width: 100%; }
.login .btn { width: 100%; justify-content: center; margin-top: 18px; }
.empty { padding: 36px; text-align: center; color: var(--gray); }
details summary { cursor: pointer; color: var(--primary); }
.print-only { display: none; }
@media (max-width: 1100px) { .grid.k4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid.k3, .grid.k2 { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .layout { grid-template-columns: 1fr; } .side { position: static; height: auto; } .content { padding: 14px; } }
@media print {
  .side, .topbar, .no-print, .flash { display: none !important; }
  .layout { display: block; } .content { padding: 0; } body { background: #fff; }
  .print-only { display: block; } .card { border: none; padding: 0; }
  th { position: static; } .table-wrap { border: none; overflow: visible; }
  .package { page-break-inside: avoid; }
}