*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#4f46e5;--primary-dark:#4338ca;--primary-light:#e0e7ff;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--info:#3b82f6;--dark:#1e293b;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-200:#e2e8f0;--gray-300:#cbd5e1;--gray-400:#94a3b8;--gray-500:#64748b;--gray-600:#475569;--gray-700:#334155;--gray-800:#1e293b;--sidebar-width:260px;--topbar-height:60px;--radius:10px;--shadow:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1)}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'PingFang SC','Microsoft YaHei',sans-serif;background:var(--gray-100);color:var(--gray-800);line-height:1.6;font-size:14px}
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}
.login-card{background:#fff;border-radius:16px;padding:40px;width:100%;max-width:420px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login-header{text-align:center;margin-bottom:32px}
.login-header i{font-size:48px;color:var(--primary);margin-bottom:12px;display:block}
.login-header h1{font-size:24px;color:var(--gray-800);margin-bottom:4px}
.login-header p{color:var(--gray-500);font-size:14px}
.error-msg{margin-top:16px;padding:10px 14px;background:#fef2f2;color:var(--danger);border-radius:8px;font-size:13px;text-align:center}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--gray-700);margin-bottom:6px}
.form-input,.form-textarea,.form-select{width:100%;padding:10px 14px;border:1px solid var(--gray-300);border-radius:8px;font-size:14px;transition:border-color .2s,box-shadow .2s;background:#fff;color:var(--gray-800)}
.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
.form-textarea{resize:vertical;min-height:80px;font-family:inherit}
.form-help{font-size:12px;color:var(--gray-500);margin-bottom:4px}
.checkbox-label{display:flex!important;align-items:center;gap:8px;cursor:pointer;font-weight:500!important}
.checkbox-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary)}
select{padding:10px 14px;border:1px solid var(--gray-300);border-radius:8px;font-size:14px;background:#fff;cursor:pointer;width:100%}
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap}
.btn:hover{opacity:.9;transform:translateY(-1px)}.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}
.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}
.btn-warning{background:var(--warning);color:#fff}
.btn-sm{padding:6px 14px;font-size:13px}.btn-xs{padding:4px 10px;font-size:12px}
.btn-block{width:100%;justify-content:center;padding:12px;font-size:16px}
.btn-outline{background:transparent;border:1px solid var(--gray-300);color:var(--gray-600)}.btn-outline:hover{background:var(--gray-50)}
.main-app{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-width);background:var(--dark);color:#fff;display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform .3s;overflow-y:auto}
.sidebar-header{padding:20px;display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.1)}
.sidebar-header i{font-size:28px;color:#818cf8}
.bot-selector{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.1)}
.bot-selector label{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--gray-400);margin-bottom:6px;display:block}
.bot-selector select{width:100%;padding:8px 10px;border-radius:6px;background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.15);font-size:13px}
.bot-selector select option{background:var(--dark);color:#fff}
.sidebar-nav{flex:1;padding:8px 0}
.nav-section{padding:16px 20px 6px;font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--gray-400)}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 20px;color:var(--gray-300);text-decoration:none;font-size:14px;transition:all .15s;border-left:3px solid transparent}
.nav-item:hover{background:rgba(255,255,255,.05);color:#fff}
.nav-item.active{background:rgba(79,70,229,.2);color:#818cf8;border-left-color:#818cf8}
.nav-item i{font-size:18px;width:22px;text-align:center}
.sidebar-footer{padding:14px 20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--gray-400)}
.sidebar-footer button{background:none;border:none;color:var(--gray-400);cursor:pointer;font-size:20px;padding:4px;transition:color .2s}
.sidebar-footer button:hover{color:var(--danger)}
.main-content{flex:1;margin-left:var(--sidebar-width);display:flex;flex-direction:column}
.topbar{height:var(--topbar-height);background:#fff;display:flex;align-items:center;padding:0 24px;border-bottom:1px solid var(--gray-200);gap:16px;position:sticky;top:0;z-index:50}
.topbar h2{font-size:18px;color:var(--gray-800);flex:1}
.topbar-right{display:flex;align-items:center;gap:10px}
.current-bot-badge{background:var(--primary-light);color:var(--primary);padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600}
.menu-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--gray-600)}
.content-area{padding:24px;flex:1}
.page{display:none}.page.active{display:block}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.stat-card{background:#fff;border-radius:var(--radius);padding:20px;display:flex;align-items:center;gap:16px;box-shadow:var(--shadow);border-left:4px solid}
.stat-card.blue{border-left-color:var(--info)}.stat-card.green{border-left-color:var(--success)}
.stat-card.orange{border-left-color:var(--warning)}.stat-card.red{border-left-color:var(--danger)}
.stat-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px}
.stat-card.blue .stat-icon{background:#dbeafe;color:var(--info)}
.stat-card.green .stat-icon{background:#d1fae5;color:var(--success)}
.stat-card.orange .stat-icon{background:#fef3c7;color:var(--warning)}
.stat-card.red .stat-icon{background:#fee2e2;color:var(--danger)}
.stat-value{font-size:28px;font-weight:700;color:var(--gray-800);display:block;line-height:1}
.stat-label{font-size:13px;color:var(--gray-500);margin-top:2px;display:block}
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card-header{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--gray-200)}
.card-header h3{font-size:16px;display:flex;align-items:center;gap:8px}
.card-body{padding:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.data-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--gray-100)}
.data-row:last-child{border-bottom:none}
.data-row span:last-child{font-weight:600;font-size:16px;color:var(--gray-800)}
.mini-stat{text-align:center;padding:16px;background:var(--gray-50);border-radius:8px}
.mini-stat-value{display:block;font-size:24px;font-weight:700;color:var(--primary)}
.mini-stat-label{font-size:12px;color:var(--gray-500);margin-top:4px;display:block}
.data-table{width:100%;border-collapse:collapse}
.data-table th{background:var(--gray-50);padding:10px 14px;text-align:left;font-size:12px;font-weight:600;text-transform:uppercase;color:var(--gray-500);border-bottom:2px solid var(--gray-200);white-space:nowrap}
.data-table td{padding:10px 14px;border-bottom:1px solid var(--gray-100);font-size:13px;vertical-align:middle}
.data-table tr:hover td{background:var(--gray-50)}
.data-table .msg-content{max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:600}
.badge-success{background:#d1fae5;color:#065f46}.badge-danger{background:#fee2e2;color:#991b1b}
.badge-warning{background:#fef3c7;color:#92400e}.badge-info{background:#dbeafe;color:#1e40af}
.badge-gray{background:var(--gray-200);color:var(--gray-600)}
.pagination{display:flex;gap:6px;justify-content:center;padding:16px 0;flex-wrap:wrap}
.pagination button{padding:6px 12px;border:1px solid var(--gray-300);background:#fff;border-radius:6px;cursor:pointer;font-size:13px;transition:all .15s}
.pagination button:hover{background:var(--gray-50)}
.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination button:disabled{opacity:.4;cursor:not-allowed}
.bots-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}
.bot-card{border:1px solid var(--gray-200);border-radius:var(--radius);padding:20px;transition:box-shadow .2s}
.bot-card:hover{box-shadow:var(--shadow-lg)}
.bot-card-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.bot-card-header .bot-avatar{width:44px;height:44px;background:var(--primary-light);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--primary)}
.bot-card-header .bot-info{flex:1}
.bot-card-header .bot-info h4{font-size:15px;margin-bottom:2px}
.bot-card-header .bot-info span{font-size:12px;color:var(--gray-500)}
.bot-card-actions{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.header-actions{display:flex;gap:8px;align-items:center}
.header-actions .form-input{width:auto;min-width:180px}
.modal{position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);backdrop-filter:blur(4px)}
.modal-content{position:relative;background:#fff;border-radius:16px;width:100%;max-width:520px;max-height:80vh;overflow-y:auto;box-shadow:0 25px 50px rgba(0,0,0,.25)}
.modal-header{padding:18px 24px;border-bottom:1px solid var(--gray-200);display:flex;align-items:center;justify-content:space-between}
.modal-header h3{font-size:17px}
.modal-close{background:none;border:none;font-size:24px;cursor:pointer;color:var(--gray-400);padding:4px;border-radius:6px}
.modal-close:hover{background:var(--gray-100);color:var(--gray-600)}
.modal-body{padding:24px}
.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 20px;border-radius:10px;color:#fff;font-size:14px;font-weight:500;box-shadow:0 6px 16px rgba(0,0,0,.15);animation:toastIn .3s ease;max-width:380px;display:flex;align-items:center;gap:8px}
.toast.success{background:var(--success)}.toast.error{background:var(--danger)}
.toast.warning{background:var(--warning)}.toast.info{background:var(--info)}
@keyframes toastIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
.button-item{display:flex;align-items:center;gap:14px;padding:14px;border:1px solid var(--gray-200);border-radius:8px;margin-bottom:10px;transition:box-shadow .15s}
.button-item:hover{box-shadow:var(--shadow)}
.button-item .btn-label{background:var(--primary-light);color:var(--primary);padding:6px 14px;border-radius:6px;font-weight:600;font-size:13px;min-width:80px;text-align:center}
.button-item .btn-reply{flex:1;font-size:13px;color:var(--gray-600);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.button-item .btn-actions{display:flex;gap:6px}
.mb-20{margin-bottom:20px}.mt-10{margin-top:10px}.text-center{text-align:center}.text-muted{color:var(--gray-500)}
@media(max-width:1024px){.stats-grid{grid-template-columns:repeat(2,1fr)}.grid-2,.grid-3{grid-template-columns:1fr}}
@media(max-width:768px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main-content{margin-left:0}.menu-toggle{display:block}.stats-grid{grid-template-columns:1fr 1fr}.header-actions{flex-direction:column;align-items:stretch}.header-actions .form-input{min-width:unset}.bots-grid{grid-template-columns:1fr}.data-table{display:block;overflow-x:auto}}
@media(max-width:480px){.stats-grid{grid-template-columns:1fr}.content-area{padding:14px}.login-card{padding:28px 20px}}