:root{--admin-primary:#1e88e5;--admin-dark:#1e2a3a;--admin-sidebar:#243447;--admin-bg:#f0f2f5;--admin-border:#e6e9ee}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei",sans-serif;font-size:14px;color:#333;background:var(--admin-bg)}
a{color:var(--admin-primary);text-decoration:none}
.admin-login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1565c0,#1e88e5,#00acc1)}
.admin-login-box{width:380px;background:#fff;border-radius:12px;padding:36px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.admin-login-box h2{text-align:center;margin-bottom:24px;color:#1e2a3a}
.admin-login-box .logo{text-align:center;font-size:22px;font-weight:700;color:var(--admin-primary);margin-bottom:20px}
.form-group{margin-bottom:18px}
.form-label{display:block;margin-bottom:6px;font-weight:500}
.form-control{width:100%;padding:10px 14px;border:1px solid #ddd;border-radius:6px;font-size:14px}
.form-control:focus{outline:none;border-color:var(--admin-primary)}
.btn{display:inline-block;padding:8px 18px;border:none;border-radius:6px;cursor:pointer;font-size:14px}
.btn-primary{background:var(--admin-primary);color:#fff}.btn-primary:hover{background:#1565c0}
.btn-success{background:#43a047;color:#fff}.btn-danger{background:#e53935;color:#fff}.btn-warning{background:#fb8c00;color:#fff}
.btn-outline{background:#fff;border:1px solid #ddd;color:#333}.btn-sm{padding:4px 10px;font-size:12px}.btn-block{display:block;width:100%}
.alert{padding:10px 14px;border-radius:6px;margin-bottom:14px;font-size:13px}
.alert-success{background:#e8f5e9;color:#2e7d32}.alert-danger{background:#fbe9e7;color:#c62828}

.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{width:220px;background:var(--admin-sidebar);color:#b3c2d6;flex-shrink:0;position:fixed;height:100vh;overflow-y:auto}
.admin-sidebar .sidebar-header{padding:18px 20px;color:#fff;font-size:18px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.08)}
.admin-sidebar .sidebar-header small{display:block;font-size:11px;font-weight:400;opacity:.6;margin-top:2px}
.admin-nav a{display:flex;align-items:center;gap:10px;padding:11px 20px;color:#b3c2d6;border-left:3px solid transparent;transition:.2s}
.admin-nav a:hover{background:rgba(255,255,255,.05);color:#fff}
.admin-nav a.active{background:var(--admin-primary);color:#fff;border-left-color:#fff}
.admin-nav .nav-icon{width:18px;text-align:center}
.admin-main{flex:1;margin-left:220px}
.admin-header{background:#fff;padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 1px 4px rgba(0,0,0,.06);position:sticky;top:0;z-index:10}
.admin-header .breadcrumb{color:#888;font-size:13px}
.admin-content{padding:24px}
.card{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);margin-bottom:20px}
.card-body{padding:20px}
.card-header{padding:14px 20px;border-bottom:1px solid var(--admin-border);font-weight:600;display:flex;justify-content:space-between;align-items:center}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--admin-border);font-size:13px}
.table th{background:#fafbfc;font-weight:600;color:#555}
.table tr:hover{background:#fafbfc}
.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:11px}
.badge-primary{background:#e3f2fd;color:#1976d2}.badge-success{background:#e8f5e9;color:#388e3c}.badge-warning{background:#fff3e0;color:#f57c00}.badge-danger{background:#fbe9e7;color:#d32f2f}.badge-gray{background:#eceff1;color:#616161}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.stat-card{background:#fff;border-radius:8px;padding:18px;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.stat-card .stat-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;float:right}
.stat-card .stat-value{font-size:24px;font-weight:700;color:#1e2a3a}
.stat-card .stat-label{color:#888;font-size:12px;margin-top:2px}
.form-row{display:flex;gap:16px}.form-row .form-group{flex:1}
.text-muted{color:#999}.text-danger{color:#e53935}.text-success{color:#43a047}
.pagination{display:flex;justify-content:center;gap:6px;margin-top:20px}
.pagination a,.pagination span{padding:5px 10px;border:1px solid #ddd;border-radius:4px}
.pagination a:hover{background:var(--admin-primary);color:#fff}
.empty{text-align:center;padding:40px;color:#999}