:root{
  --bg:#f5f7fa; --panel:#fff; --ink:#1f2937; --muted:#6b7280;
  --line:#e5e7eb; --brand:#f97316; --brand-d:#ea580c; --brand-bg:#fff7ed;
  --ok:#16a34a; --warn:#d97706; --bad:#dc2626; --blue:#2563eb;
  --shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --radius:10px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--ink); font-size:14px; line-height:1.5;
  display:grid; grid-template-columns:200px 1fr; grid-template-rows:auto 1fr;
  grid-template-areas:"top top" "nav main"; min-height:100vh;
}
.topbar{grid-area:top; display:flex; align-items:center; justify-content:space-between;
  padding:10px 18px; background:var(--panel); border-bottom:1px solid var(--line); position:sticky; top:0; z-index:20}
.brand{display:flex; align-items:center; gap:10px}
.logo{width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-d));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt small{color:var(--muted);font-size:11px}
.top-actions{display:flex;align-items:center;gap:12px}
.entity-switch{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.entity-switch select{padding:5px 8px;border:1px solid var(--line);border-radius:7px;font-size:13px;color:var(--ink)}
.wecom-user{font-size:12px;color:var(--brand-d);background:var(--brand-bg);padding:4px 9px;border-radius:20px;border:1px solid #fed7aa;white-space:nowrap}

.sidenav{grid-area:nav;background:var(--panel);border-right:1px solid var(--line);padding:12px 8px;display:flex;flex-direction:column;gap:4px}
.nav-btn{text-align:left;background:none;border:none;padding:10px 12px;border-radius:8px;color:var(--ink);cursor:pointer;font-size:13.5px}
.nav-btn:hover{background:var(--brand-bg)}
.nav-btn.active{background:var(--brand);color:#fff;font-weight:600}

.content{grid-area:main;padding:20px;overflow:auto}
.view{display:none}
.view.active{display:block}
h2.view-title{margin:0 0 4px;font-size:19px}
.view-sub{color:var(--muted);margin:0 0 16px;font-size:13px}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);margin-bottom:16px}
.card h3{margin:0 0 12px;font-size:15px;display:flex;align-items:center;gap:8px}
.row{display:flex;flex-wrap:wrap;gap:12px}
.kpi{flex:1;min-width:140px;background:var(--brand-bg);border:1px solid #fed7aa;border-radius:var(--radius);padding:14px}
.kpi .v{font-size:22px;font-weight:800;color:var(--brand-d)}
.kpi .l{font-size:12px;color:var(--muted)}

/* 表格 */
table{width:100%;border-collapse:collapse;font-size:13px;background:var(--panel)}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#fafafa;font-weight:600;color:var(--muted);position:sticky;top:0}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tr:hover td{background:#fcfcfc}
.tag{display:inline-block;padding:1px 8px;border-radius:999px;font-size:11px;font-weight:600}
.tag.ar{background:#fee2e2;color:#b91c1c}
.tag.ap{background:#dbeafe;color:#1d4ed8}
.tag.self{background:#dcfce7;color:#15803d}
.tag.client{background:#f3e8ff;color:#7e22ce}
.tag.warn{background:#fef3c7;color:#b45309}
.tag.bad{background:#fee2e2;color:#b91c1c}
.tag.ok{background:#dcfce7;color:#15803d}

.btn{border:none;border-radius:8px;padding:8px 14px;font-size:13px;cursor:pointer;background:var(--brand);color:#fff;font-weight:600}
.btn:hover{background:var(--brand-d)}
.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--ink);font-weight:500}
.btn.ghost:hover{background:var(--brand-bg)}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.danger{background:var(--bad)}
label.fld{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted);margin-bottom:10px}
input,select,textarea{padding:8px 10px;border:1px solid var(--line);border-radius:7px;font-size:13px;font-family:inherit;color:var(--ink);background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid #fed7aa;border-color:var(--brand)}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.form-grid label{display:flex;flex-direction:column;gap:5px;font-size:12px;color:var(--muted)}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;margin:2px}
.pill.ok{background:#dcfce7;color:#15803d;border:1px solid #bbf7d0}
.pill.no{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}

.muted{color:var(--muted)}
.right{text-align:right}
.center{text-align:center}
.flex{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}
.alert{border-radius:8px;padding:10px 12px;font-size:13px;margin-bottom:10px}
.alert.warn{background:#fffbeb;border:1px solid #fde68a;color:#92400e}
.alert.bad{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}
.alert.ok{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534}

.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:50}
.modal-box{background:#fff;border-radius:12px;width:min(620px,92vw);max-height:88vh;overflow:auto;box-shadow:0 10px 40px rgba(0,0,0,.25)}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);font-weight:700}
.modal-head .x{border:none;background:none;font-size:22px;cursor:pointer;color:var(--muted)}
.modal-body{padding:18px}
.hidden{display:none!important}

.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#111827;color:#fff;padding:10px 18px;border-radius:8px;z-index:60;font-size:13px;box-shadow:0 6px 20px rgba(0,0,0,.3)}

.print-layer{position:fixed;inset:0;background:#fff;overflow:auto;z-index:80;padding:40px}
.letter{max-width:760px;margin:0 auto;font-size:14px;line-height:1.8}
.letter h1{text-align:center;font-size:20px}
.letter .meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.letter table{border:1px solid #000;margin:16px 0}
.letter th,.letter td{border:1px solid #000}
.print-actions{position:fixed;top:12px;right:18px;z-index:90;display:flex;gap:8px}

.tabs{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}
.tab{padding:6px 14px;border:1px solid var(--line);border-radius:999px;cursor:pointer;font-size:13px;background:#fff}
.tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* 响应式：窄屏表格转卡片 */
@media (max-width:760px){
  body{grid-template-columns:1fr; grid-template-areas:"top" "nav" "main"}
  .sidenav{flex-direction:row;overflow-x:auto;padding:8px}
  .nav-btn{white-space:nowrap}
  .content{padding:14px}
  table.responsive thead{display:none}
  table.responsive,table.responsive tbody,table.responsive tr,table.responsive td{display:block;width:100%}
  table.responsive tr{border:1px solid var(--line);border-radius:10px;margin-bottom:10px;padding:6px 8px;background:#fff}
  table.responsive td{border:none;border-bottom:1px solid #f1f1f1;display:flex;justify-content:space-between;gap:12px;padding:7px 4px}
  table.responsive td::before{content:attr(data-label);font-weight:600;color:var(--muted);flex:0 0 42%}
  table.responsive td.num{text-align:right}
  .kpi{min-width:100%}
}

/* 打印 / 另存为 PDF：仅保留表格内容，隐藏导航与操作控件 */
@media print{
  body{grid-template-columns:1fr; grid-template-areas:"main"; background:#fff; display:block}
  .topbar, .sidenav, .toast, .modal, .print-layer, .print-actions, #btnReset{display:none !important}
  .content{grid-area:auto; padding:0; overflow:visible}
  .card{box-shadow:none; border:1px solid #ccc; break-inside:avoid; margin-bottom:14px}
  .card h3{color:#000}
  table{width:100%; font-size:11px; border:1px solid #000}
  th,td{border:1px solid #999; padding:5px 6px; color:#000}
  th{background:#eee !important; color:#000}
  .view-title{font-size:16px; color:#000}
  .view-sub{color:#333}
  .flex{display:none}
  .tag{color:#000 !important; background:#eee !important; border:1px solid #999}
}