*{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#3b5bdb;--primary-dark:#2b48c9;--bg:#f4f6fb;--card:#fff;
  --text:#1f2937;--muted:#6b7280;--border:#e5e7eb;--radius:10px;
  --green:#16a34a;--red:#dc2626;--amber:#d97706;
}
body{font-family:-apple-system,"Segoe UI","Microsoft YaHei",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;font-size:14px}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
.topbar{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.topbar-inner{max-width:1100px;margin:0 auto;padding:0 20px;height:60px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;font-size:18px;color:var(--primary)}
.topbar-nav{display:flex;gap:8px;align-items:center}
.nav-link{padding:8px 14px;border-radius:8px;color:var(--text)}
.nav-link:hover{background:var(--bg);color:var(--primary)}

.layout-public .public-content{max-width:1100px;margin:0 auto;padding:32px 20px}
.page-head h1{font-size:22px;margin-bottom:18px}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;overflow:hidden}
.card-head{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.card-head h2{font-size:16px}
.card-body{padding:20px}

.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-weight:600;color:var(--text)}
.form-group .hint{font-weight:400;color:var(--muted);font-size:12px}
.form-control{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff;transition:border-color .15s}
.form-control:focus{outline:none;border-color:var(--primary)}
textarea.form-control{min-height:90px;resize:vertical}
.btn{display:inline-block;padding:9px 18px;border:none;border-radius:8px;background:var(--primary);color:#fff;cursor:pointer;font-size:14px}
.btn:hover{background:var(--primary-dark)}
.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg)}
.btn-danger{background:var(--red)}
.btn-sm{padding:5px 10px;font-size:12px}

.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}
.table th{background:#fafbfd;color:var(--muted);font-weight:600}
.table tr:hover{background:#fafbfd}

.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px}
.badge-green{background:#dcfce7;color:var(--green)}
.badge-red{background:#fee2e2;color:var(--red)}
.badge-gray{background:#f3f4f6;color:var(--muted)}
.badge-blue{background:#dbeafe;color:var(--primary)}

.alert{padding:11px 15px;border-radius:8px;margin-bottom:16px;border:1px solid}
.alert-success{background:#f0fdf4;border-color:#bbf7d0;color:var(--green)}
.alert-error{background:#fef2f2;border-color:#fecaca;color:var(--red)}
.alert-info{background:#eff6ff;border-color:#bfdbfe;color:var(--primary)}
.empty{text-align:center;color:var(--muted);padding:40px 0}

.layout-dashboard{display:flex;min-height:100vh}
.sidebar{width:230px;background:#fff;border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;align-self:flex-start;height:100vh;overflow-y:auto;flex-shrink:0}
.sidebar-brand{padding:18px 20px;font-weight:700;font-size:16px;border-bottom:1px solid var(--border)}
.sidebar-brand a{color:var(--primary)}
.sidebar-user{padding:18px 20px;border-bottom:1px solid var(--border);text-align:center}
.sidebar-user-name{margin-top:8px;font-weight:600}
.sidebar-user-sub{color:var(--muted);font-size:12px}
.sidebar-menu{list-style:none;flex:1;padding:10px 0}
.sidebar-menu li a{display:block;padding:11px 20px;color:var(--text)}
.sidebar-menu li a:hover{background:var(--bg);color:var(--primary)}
.sidebar-menu li.active a{background:#eef2ff;color:var(--primary);font-weight:600;border-left:3px solid var(--primary)}
.sidebar-foot{padding:14px 20px;border-top:1px solid var(--border)}
.sidebar-foot a{color:var(--red)}
.dashboard-content{flex:1;padding:28px 30px;max-width:1100px}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:20px}
.stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.stat-num{font-size:26px;font-weight:700;color:var(--primary)}
.stat-label{color:var(--muted);font-size:13px;margin-top:4px}

.pagination{display:flex;gap:6px;justify-content:center;margin-top:18px}
.pagination a,.pagination span{padding:6px 12px;border:1px solid var(--border);border-radius:6px;background:#fff}
.pagination a:hover{background:var(--bg)}
.pagination .cur{background:var(--primary);color:#fff;border-color:var(--primary)}

.site-footer{padding:18px;text-align:center;color:var(--muted);font-size:12px}
.site-footer .dot{margin:0 8px}

.hero{text-align:center;padding:60px 20px 50px}
.hero h1{font-size:34px;margin-bottom:14px}
.hero p{color:var(--muted);max-width:640px;margin:0 auto 26px;font-size:15px}
.hero-actions{display:flex;gap:12px;justify-content:center}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;max-width:1000px;margin:0 auto}
.feature{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.feature h3{margin-bottom:8px;color:var(--primary)}
.feature p{color:var(--muted);font-size:13px}

.auth-wrap{max-width:420px;margin:40px auto}
.muted-link{color:var(--muted);font-size:13px}
.row{display:flex;gap:10px;align-items:center}
.kv{display:grid;grid-template-columns:120px 1fr;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}
.kv dt{color:var(--muted)}
.kv:last-of-type{border-bottom:none}
@media(max-width:640px){
  .sidebar{width:64px}.sidebar-brand,.sidebar-user,.sidebar-foot{display:none}
  .sidebar-menu li a{text-align:center;padding:14px 6px}
  .dashboard-content{padding:18px}
}