:root{
  --bg:#f8fafc; --card:#ffffff; --border:#e2e8f0; --border-strong:#cbd5e1;
  --text:#0f172a; --muted:#64748b; --muted-2:#94a3b8;
  --primary:#1d4ed8; --primary-600:#1e40af; --primary-soft:#eff6ff;
  --danger:#dc2626; --danger-soft:#fef2f2; --success:#16a34a; --success-soft:#f0fdf4;
  --warning:#d97706; --warning-soft:#fffbeb; --radius:12px;
  --shadow:0 1px 2px rgba(15,23,42,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{
  background:var(--bg); color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:14px; line-height:1.5; -webkit-font-smoothing:antialiased;
}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
a{color:inherit;text-decoration:none}
h1,h2,h3,p{margin:0}
svg{display:block}

/* ---------- 登录 ---------- */
.login-wrap{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(900px 500px at 50% -10%,#e0ecff 0%,transparent 60%),var(--bg)}
.login-card{width:100%;max-width:400px;background:var(--card);border:1px solid var(--border);
  border-radius:16px;box-shadow:0 12px 40px rgba(15,23,42,.08);padding:32px}
.login-logo{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.logo-mark{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#2563eb,#1d4ed8);
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;flex:none}
img.logo-mark{object-fit:contain;background:#fff;padding:1px}
.login-card h1{font-size:19px;font-weight:600}.login-sub{color:var(--muted);font-size:13px;margin-top:4px}
.hint{margin-top:16px;font-size:12px;color:var(--muted);background:#f1f5f9;border-radius:8px;padding:8px 10px;text-align:center}

/* ---------- 布局 ---------- */
.shell{display:flex;min-height:100%}
.sidebar{width:236px;flex:none;background:var(--card);border-right:1px solid var(--border);
  position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:20}
.brand{height:64px;display:flex;align-items:center;gap:10px;padding:0 18px;border-bottom:1px solid var(--border)}
.brand .logo-mark{width:32px;height:32px;border-radius:8px;font-size:15px}
.brand-name{font-size:14px;font-weight:600;white-space:nowrap}
.nav{flex:1;overflow-y:auto;padding:14px 12px 24px}
.nav-label{font-size:11px;color:var(--muted-2);padding:14px 10px 6px;letter-spacing:.5px}
.nav-item{display:flex;align-items:center;gap:10px;height:36px;padding:0 10px;border-radius:8px;
  color:#334155;font-size:13.5px;cursor:pointer;margin-bottom:2px}
.nav-item:hover{background:#f1f5f9}
.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:500}
.nav-item svg{width:16px;height:16px;flex:none;opacity:.85}
.main{margin-left:236px;flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:64px;background:var(--card);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:10}
.topbar-title{font-size:14px;font-weight:600}
.userchip{display:flex;align-items:center;gap:10px;position:relative}
.avatar{width:28px;height:28px;border-radius:50%;background:var(--primary);color:#fff;display:flex;
  align-items:center;justify-content:center;font-size:12px;font-weight:600}
.userchip .uname{font-size:13px;color:#334155}
.usermenu{position:absolute;right:0;top:40px;background:#fff;border:1px solid var(--border);border-radius:10px;
  box-shadow:0 10px 30px rgba(15,23,42,.12);min-width:150px;padding:6px;display:none}
.usermenu.show{display:block}
.usermenu button{display:block;width:100%;text-align:left;border:0;background:none;padding:8px 10px;
  border-radius:6px;font-size:13px;cursor:pointer;color:#334155}
.usermenu button:hover{background:#f1f5f9}
.content{padding:24px 28px 60px;max-width:1440px;width:100%}
.page-head{margin-bottom:18px}
.page-head h1{font-size:20px;font-weight:600}
.page-head p{color:var(--muted);font-size:13px;margin-top:4px}

/* ---------- карточки ---------- */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-head{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;
  justify-content:space-between;gap:12px;flex-wrap:wrap}
.card-title{font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px;white-space:nowrap}
.card-title svg{width:16px;height:16px;flex:none}
.card-body{padding:16px 18px}
.card-body.flush{padding:0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:18px}
.stats-6{grid-template-columns:repeat(6,minmax(0,1fr))}
@media (max-width:1200px){.stats-6{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:700px){.stats-6{grid-template-columns:repeat(2,minmax(0,1fr))}}
.stat{display:flex;align-items:center;gap:12px;padding:16px 18px}
.stat .ico{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex:none}
.stat .ico svg{width:20px;height:20px}
.stat .num{font-size:22px;font-weight:600;line-height:1.2;font-variant-numeric:tabular-nums}
.stat .lbl{font-size:12px;color:var(--muted);margin-top:1px}
.ico.blue{background:#dbeafe;color:#1d4ed8}
.ico.green{background:#dcfce7;color:#15803d}
.ico.red{background:#fee2e2;color:#b91c1c}
.ico.orange{background:#ffedd5;color:#c2410c}
.ico.violet{background:#ede9fe;color:#6d28d9}
.ico.gray{background:#f1f5f9;color:#475569}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;font-weight:500;color:var(--muted);font-size:12px;white-space:nowrap;
  padding:10px 14px;background:#f8fafc;border-bottom:1px solid var(--border)}
td{padding:11px 14px;border-bottom:1px solid #f1f5f9;white-space:nowrap;font-variant-numeric:tabular-nums}
tbody tr:hover{background:#fafbfc}
tbody tr:last-child td{border-bottom:0}
.num-r{text-align:right}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}
.muted{color:var(--muted)}
.empty{text-align:center;color:var(--muted);padding:40px 0}
.trunc{display:inline-block;max-width:180px;overflow:hidden;text-overflow:ellipsis;vertical-align:bottom}
.items-table th,.items-table td{padding:7px 7px}
.items-table .input{padding:0 7px}

/* ---------- 控件 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 14px;
  border-radius:8px;border:1px solid transparent;font-size:13px;font-weight:500;cursor:pointer;
  background:#fff;color:#334155;transition:.15s;white-space:nowrap}
.btn svg{width:15px;height:15px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover:not(:disabled){background:var(--primary-600)}
.btn-outline{border-color:var(--border-strong);background:#fff}
.btn-outline:hover:not(:disabled){background:#f8fafc}
.btn-ghost{background:transparent}
.btn-ghost:hover:not(:disabled){background:#f1f5f9}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover:not(:disabled){background:#b91c1c}
.btn-danger-outline{border-color:#fecaca;color:var(--danger);background:#fff}
.btn-danger-outline:hover{background:var(--danger-soft)}
.btn-sm{height:30px;padding:0 10px;font-size:12.5px;border-radius:6px}
.btn-icon{width:32px;height:32px;padding:0}
.input,.select{height:36px;width:100%;padding:0 10px;border:1px solid var(--border-strong);
  border-radius:8px;background:#fff;outline:none;transition:.15s}
.input:focus,.select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(29,78,216,.12)}
textarea.input{height:auto;padding:8px 10px;resize:vertical;min-height:64px}
.input[disabled],.select[disabled]{background:#f8fafc;color:var(--muted)}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-size:12.5px;color:#475569;font-weight:500}
.req{color:var(--danger)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.form-actions{display:flex;gap:10px;justify-content:flex-end;padding-top:6px}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.toolbar .input,.toolbar .select{width:auto;min-width:140px}
.search{position:relative}
.search svg{position:absolute;left:10px;top:10px;width:16px;height:16px;color:var(--muted)}
.search .input{padding-left:32px;min-width:220px}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:1px 8px;font-size:12px;
  border:1px solid transparent;font-weight:500}
.badge-blue{background:#eff6ff;color:#1d4ed8;border-color:#dbeafe}
.badge-green{background:#f0fdf4;color:#15803d;border-color:#dcfce7}
.badge-red{background:#fef2f2;color:#b91c1c;border-color:#fee2e2}
.badge-orange{background:#fff7ed;color:#c2410c;border-color:#ffedd5}
.badge-gray{background:#f8fafc;color:#475569;border-color:#e2e8f0}
.badge-violet{background:#f5f3ff;color:#6d28d9;border-color:#ede9fe}
.check{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#334155;cursor:pointer;user-select:none}
.check input{width:15px;height:15px;accent-color:var(--primary)}
.tabs{display:inline-flex;background:#f1f5f9;padding:3px;border-radius:9px;gap:2px}
.tab{border:0;background:transparent;padding:6px 14px;border-radius:7px;font-size:13px;color:#475569;cursor:pointer;
  display:flex;align-items:center;gap:6px}
.tab svg{width:14px;height:14px}
.tab.active{background:#fff;color:var(--text);font-weight:500;box-shadow:var(--shadow)}
.split{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:18px;align-items:start}
.info-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed #e2e8f0;font-size:13px}
.info-row:last-child{border-bottom:0}
.info-row b{font-variant-numeric:tabular-nums}
.section-gap{display:flex;flex-direction:column;gap:18px}
.upload{display:block;border:1.5px dashed var(--border-strong);border-radius:12px;padding:26px 18px;text-align:center;
  color:var(--muted);cursor:pointer;transition:.15s;background:#fcfdff}
.upload:hover{border-color:#93c5fd;background:#f8fbff}
.upload svg{width:30px;height:30px;margin:0 auto 10px;color:#93a3b8}
.upload b{color:var(--primary);font-weight:500}
.upload img{max-width:100%;max-height:220px;border-radius:8px;margin-top:10px}
.notice{font-size:12.5px;color:var(--muted);background:#f8fafc;border:1px solid var(--border);
  border-radius:8px;padding:10px 12px}
.danger-zone{border:1px solid #fecaca;border-radius:10px;padding:14px;background:#fffafa}
.placeholder-page{display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:70px 24px;text-align:center;color:var(--muted);gap:10px}
.placeholder-page .round{width:56px;height:56px;border-radius:50%;background:#f1f5f9;
  display:flex;align-items:center;justify-content:center}
.placeholder-page h3{font-size:15px;color:var(--text);font-weight:600}
.actions-cell{display:flex;gap:4px}

/* ---------- 弹窗 / toast ---------- */
.overlay{position:fixed;inset:0;background:rgba(15,23,42,.45);display:flex;align-items:center;
  justify-content:center;z-index:100;padding:20px}
.dialog{background:#fff;border-radius:14px;width:100%;max-width:460px;box-shadow:0 24px 60px rgba(15,23,42,.25);
  max-height:90vh;overflow:auto;animation:pop .14s ease-out}
.dialog.wide{max-width:640px}
@keyframes pop{from{transform:scale(.97);opacity:.6}to{transform:scale(1);opacity:1}}
.dialog-head{padding:18px 20px 0}
.dialog-head h3{font-size:15px;font-weight:600}
.dialog-body{padding:16px 20px}
.dialog-foot{padding:0 20px 18px;display:flex;justify-content:flex-end;gap:10px}
.toasts{position:fixed;right:18px;top:18px;display:flex;flex-direction:column;gap:8px;z-index:200}
.toast{background:#fff;border:1px solid var(--border);border-left:3px solid var(--primary);
  border-radius:8px;padding:10px 14px;font-size:13px;box-shadow:0 8px 26px rgba(15,23,42,.12);
  min-width:200px;animation:slide .18s ease-out}
.toast.ok{border-left-color:var(--success)}
.toast.err{border-left-color:var(--danger)}
@keyframes slide{from{transform:translateX(12px);opacity:0}to{transform:none;opacity:1}}

@media (max-width:900px){
  .sidebar{width:64px}
  .brand-name,.nav-label,.nav-item span{display:none}
  .nav-item{justify-content:center;padding:0}
  .brand{justify-content:center;padding:0}
  .main{margin-left:64px}
  .content{padding:16px}
  .split,.grid-3,.grid-4{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
}
@media print{
  .sidebar,.topbar,.no-print{display:none!important}
  .main{margin:0}
  .content{padding:0}
}