:root{
  --primary:#1f4e78; --primary-d:#163a5a; --accent:#2e6da4;
  --bg:#f3f4f6; --card:#fff; --border:#e5e7eb; --text:#1f2937; --muted:#6b7280;
  --ok:#16a34a; --warn:#d97706; --danger:#dc2626; --soft:#f8fafc;
  --radius:12px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
a{color:var(--accent);text-decoration:none}
button{font-family:inherit}

/* 布局 */
.app{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--primary);color:#fff;flex-shrink:0;display:flex;flex-direction:column}
.sidebar .brand{padding:18px 18px;font-size:16px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.15)}
.sidebar nav{flex:1;overflow-y:auto;padding:8px 0}
.sidebar nav a{display:flex;align-items:center;gap:10px;padding:11px 18px;color:#dbeafe;cursor:pointer;border-left:3px solid transparent}
.sidebar nav a:hover{background:rgba(255,255,255,.08)}
.sidebar nav a.active{background:rgba(255,255,255,.15);border-left-color:#fff;color:#fff}
.sidebar .foot{padding:12px 18px;font-size:12px;opacity:.7}
.sidebar nav .nav-group{padding:12px 18px 4px;font-size:11px;letter-spacing:.5px;color:rgba(255,255,255,.45)}

.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{height:56px;background:var(--card);border-bottom:1px solid var(--border);display:flex;align-items:center;
  padding:0 18px;gap:12px;position:sticky;top:0;z-index:20}
.topbar .menu-btn{display:none;background:none;border:0;font-size:22px;cursor:pointer;color:var(--primary)}
.topbar .title{font-weight:600;font-size:15px}
.topbar .spacer{flex:1}
.topbar .user{font-size:13px;color:var(--muted)}
.topbar .user b{color:var(--text)}
.btn{padding:8px 14px;border:1px solid var(--border);background:#fff;border-radius:8px;cursor:pointer;font-size:13px}
.btn:hover{background:var(--soft)}
.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn.primary:hover{background:var(--primary-d)}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.danger{color:var(--danger);border-color:#fecaca}
.btn[disabled]{opacity:.6;cursor:not-allowed}
.content{padding:18px;overflow-y:auto}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.card h3{margin:0 0 12px;font-size:15px}
.grid{display:grid;gap:14px}
.kpis{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.kpi{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.kpi .label{font-size:12px;color:var(--muted)}
.kpi .value{font-size:22px;font-weight:700;margin-top:6px}
.kpi .v-ok{color:var(--ok)} .kpi .v-warn{color:var(--warn)} .kpi .v-danger{color:var(--danger)}

/* 表格 */
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}
th{color:var(--muted);font-weight:600;background:var(--soft);position:sticky;top:0}
tbody tr:hover{background:#fafcff}
.table-wrap{overflow-x:auto}
.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:12px;background:#e0f2fe;color:#0369a1}
.tag.g{background:#dcfce7;color:#15803d}
.tag.w{background:#fef3c7;color:#b45309}
.tag.r{background:#fee2e2;color:#b91c1c}

/* 工具条 */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px;align-items:center}
.toolbar input,.toolbar select{padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:13px}
.toolbar label{font-size:13px;color:var(--muted)}
.toolbar .spacer{flex:1}
.pager{display:flex;gap:8px;align-items:center;margin-top:12px;font-size:13px}

/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;z-index:100;align-items:flex-start;justify-content:center;overflow:auto;padding:30px 12px}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:14px;width:100%;max-width:640px;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.modal .m-hd{padding:14px 18px;border-bottom:1px solid var(--border);font-weight:600;display:flex;justify-content:space-between;align-items:center}
.modal .m-hd .x{cursor:pointer;font-size:20px;color:var(--muted)}
.modal .m-bd{padding:18px;max-height:70vh;overflow:auto}
.modal .m-ft{padding:14px 18px;border-top:1px solid var(--border);display:flex;gap:10px;justify-content:flex-end}
.form-row{margin-bottom:12px}
.form-row label{display:block;font-size:13px;margin-bottom:4px;color:#374151;font-weight:600}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.sub-grid{margin-top:10px}
.sub-grid table th,.sub-grid table td{padding:6px 8px}
.sub-grid input,.sub-grid select{padding:5px 7px;font-size:13px;border:1px solid var(--border);border-radius:6px;width:100%}

/* 登录 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1f4e78,#2e6da4)}
.login-card{background:#fff;border-radius:16px;padding:30px;width:340px;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.login-card h1{margin:0 0 4px;font-size:20px;color:var(--primary)}
.login-card p{margin:0 0 20px;color:var(--muted);font-size:13px}
.login-card .err{color:var(--danger);font-size:13px;margin-bottom:10px;min-height:18px}

/* 手机端自适应 */
@media(max-width:768px){
  .sidebar{position:fixed;left:0;top:0;bottom:0;z-index:50;transform:translateX(-100%);transition:.2s}
  .sidebar.open{transform:translateX(0)}
  .topbar .menu-btn{display:block}
  .grid2{grid-template-columns:1fr}
  .content{padding:12px}
  .kpi .value{font-size:19px}
  th,td{padding:8px 7px}
  .hide-sm{display:none}
}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#111827;color:#fff;padding:10px 18px;border-radius:10px;font-size:13px;z-index:200;opacity:0;transition:.25s}
.toast.show{opacity:1}
.muted{color:var(--muted)}
.right{text-align:right}
.nowrap{white-space:nowrap}