:root{--primary:#667eea;--primary-dark:#5a67d8;--secondary:#764ba2;--success:#48bb78;--warning:#ed8936;--danger:#f56565;--info:#4299e1;--bg:#f7f8fc;--card-bg:#fff;--sidebar-bg:#1a1a2e;--sidebar-text:#a0aec0;--sidebar-active:#667eea;--text:#2d3748;--text-light:#718096;--border:#e2e8f0;--shadow:0 2px 8px rgba(0,0,0,.08);--radius:12px;--radius-sm:8px;--radius-xs:6px;--transition:0.2s ease}
*{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
button{cursor:pointer;font-family:inherit}
.app-layout{display:flex;min-height:100vh}

.sidebar{width:240px;background:var(--sidebar-bg);color:#fff;display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition)}
.sidebar-header{padding:24px 20px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.logo{display:flex;align-items:center;gap:10px}
.logo-icon{font-size:24px;color:var(--primary)}
.logo-text{font-size:18px;font-weight:700;letter-spacing:1px}
.sidebar-nav{flex:1;padding:12px;overflow-y:auto;display:flex;flex-direction:column;gap:4px}
.nav-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:8px;color:var(--sidebar-text);font-size:14px;transition:all var(--transition);text-decoration:none}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:var(--sidebar-active);color:#fff}
.nav-icon{font-size:18px;width:24px;text-align:center}

.sidebar-footer{display:flex;align-items:center;gap:10px;padding:14px 16px;border-top:1px solid rgba(255,255,255,.08);cursor:pointer;transition:background var(--transition)}
.sidebar-footer:hover{background:rgba(255,255,255,.05)}
.user-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;color:#fff;flex-shrink:0}
.user-info-text{flex:1;min-width:0}
.user-name{font-size:13px;font-weight:500;color:#fff;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-role-tag{font-size:11px;color:var(--sidebar-text)}
.user-arrow{font-size:10px;color:var(--sidebar-text);transition:transform 0.3s}
.sidebar-footer.open .user-arrow{transform:rotate(180deg)}

.mobile-user-btn{cursor:pointer}
.user-avatar-sm{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff}

.main-content{flex:1;margin-left:240px;padding:24px 32px;min-height:100vh}
.mobile-header{display:none;align-items:center;justify-content:space-between;padding:12px 16px;background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.mobile-title{font-weight:600;font-size:16px}
.btn-menu-toggle{background:none;border:none;font-size:22px;padding:4px}

.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--border);z-index:100;justify-content:space-around;padding:8px 0;padding-bottom:env(safe-area-inset-bottom)}
.bottom-nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--text-light);font-size:11px;text-decoration:none;padding:4px 8px}
.bottom-nav-item.active{color:var(--primary)}
.bn-icon{font-size:20px}.bn-label{font-size:10px}

.user-panel-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.3);z-index:250;display:none}
.user-panel-overlay.show{display:block}
.user-panel{position:fixed;top:0;right:-320px;width:300px;height:100vh;background:#fff;z-index:260;transition:right 0.3s ease;display:flex;flex-direction:column;box-shadow:-4px 0 20px rgba(0,0,0,.1)}
.user-panel.show{right:0}
.user-panel-head{padding:32px 24px 20px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;display:flex;align-items:center;gap:14px}
.user-avatar-lg{width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;flex-shrink:0}
.user-panel-title h3{font-size:18px;font-weight:600;margin-bottom:4px}
.user-role-badge{display:inline-block;padding:2px 10px;background:rgba(255,255,255,.2);border-radius:10px;font-size:12px}
.user-panel-body{flex:1;padding:20px 24px}
.up-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border)}
.up-row:last-child{border-bottom:none}
.up-label{font-size:13px;color:var(--text-light)}
.up-value{font-size:13px;color:var(--text);font-weight:500}
.user-panel-actions{padding:16px 24px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px}
.btn-full{width:100%;justify-content:center}

.page-content{animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.page-title{font-size:24px;font-weight:700}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--card-bg);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow);border:1px solid var(--border)}
.stat-card .stat-label{font-size:13px;color:var(--text-light);margin-bottom:8px}
.stat-card .stat-value{font-size:28px;font-weight:700}
.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);margin-bottom:20px}
.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.card-body{padding:20px}

.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border:none;border-radius:var(--radius-xs);font-size:14px;font-weight:500;transition:all var(--transition);white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:#fff;color:var(--text);border:1px solid var(--border)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#e53e3e}
.btn-sm{padding:6px 14px;font-size:13px}
.toolbar{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.search-input{padding:8px 14px;border:2px solid var(--border);border-radius:var(--radius-xs);font-size:14px;min-width:200px}
.search-input:focus{outline:none;border-color:var(--primary)}
.select-input{padding:8px 14px;border:2px solid var(--border);border-radius:var(--radius-xs);font-size:14px;background:#fff;min-width:120px}
.select-input:focus{outline:none;border-color:var(--primary)}

.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
table th,table td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}
table th{background:#f8fafc;font-weight:600;color:var(--text-light);font-size:13px;white-space:nowrap}
table tr:hover{background:#f8fafc}

.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500;white-space:nowrap}
.badge-draft{background:#edf2f7;color:#718096}.badge-pending{background:#fefcbf;color:#975a16}
.badge-sent{background:#c6f6d5;color:#276749}.badge-failed{background:#fed7d7;color:#9b2c2c}
.badge-new{background:#bee3f8;color:#2a4365}
.level-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500}
.level-1{background:#fed7d7;color:#9b2c2c}.level-2{background:#feebc8;color:#7b341e}
.level-3{background:#fefcbf;color:#744210}.level-4{background:#bee3f8;color:#2a4365}
.level-5{background:#c6f6d5;color:#22543d}.level-6{background:#edf2f7;color:#718096}

.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:200;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-container{background:#fff;border-radius:var(--radius);width:100%;max-width:560px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.2);animation:slideUp .3s ease}
@keyframes slideUp{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}
.modal-header{padding:16px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-header h2{font-size:18px;font-weight:600}
.modal-close{background:none;border:none;font-size:22px;color:var(--text-light);padding:4px;cursor:pointer}
.modal-body{padding:24px}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-size:14px;font-weight:500}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius-xs);font-size:14px;font-family:inherit}
.form-group textarea{resize:vertical;min-height:80px}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-hint{font-size:12px;color:var(--text-light);margin-top:4px}

.toast-container{position:fixed;top:20px;right:20px;z-index:300;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 20px;border-radius:var(--radius-xs);color:#fff;font-size:14px;font-weight:500;box-shadow:0 4px 12px rgba(0,0,0,.15);animation:toastIn .3s ease;max-width:360px}
.toast-success{background:var(--success)}.toast-error{background:var(--danger)}.toast-warning{background:var(--warning)}.toast-info{background:var(--info)}
@keyframes toastIn{from{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}

.empty-state{text-align:center;padding:48px 20px;color:var(--text-light)}
.empty-state .empty-icon{font-size:48px;margin-bottom:12px}
.empty-state h3{font-size:16px;margin-bottom:8px;color:var(--text)}
.loading{display:flex;align-items:center;justify-content:center;padding:40px}
.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.pagination{display:flex;align-items:center;justify-content:center;gap:4px;padding:16px 0}
.pagination button{padding:6px 12px;border:1px solid var(--border);background:#fff;border-radius:var(--radius-xs);font-size:13px}
.pagination button:disabled{opacity:.5;cursor:not-allowed}
.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.detail-row{display:flex;padding:8px 0;border-bottom:1px solid var(--border)}
.detail-label{width:100px;color:var(--text-light);font-size:13px;flex-shrink:0}
.detail-value{flex:1;font-size:14px}

@media(max-width:768px){
  .sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}
  .main-content{margin-left:0;padding:16px 16px 80px}
  .mobile-header{display:flex}
  .bottom-nav{display:flex}
  .page-title{font-size:20px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat-card{padding:14px 16px}
  .stat-card .stat-value{font-size:22px}
  .toolbar{flex-direction:column}
  .search-input{width:100%}
  .form-row{grid-template-columns:1fr}
  .user-panel{width:280px}
}
@media(min-width:769px) and (max-width:1024px){
  .sidebar{width:200px}.main-content{margin-left:200px}
}