/* 智诉云 — 专业企业级主题 */
:root {
    --bg: #f0f2f5; --card: #ffffff; --card-hover: #f8f9fb;
    --primary: #2563eb; --primary-dark: #1d4ed8; --primary-light: #eff6ff;
    --success: #059669; --danger: #dc2626; --warning: #d97706;
    --text: #111827; --text2: #6b7280; --text3: #9ca3af;
    --border: #e5e7eb; --border-light: #f3f4f6;
    --radius: 8px; --shadow: 0 1px 2px rgba(0,0,0,.04), 0 1px 3px rgba(0,0,0,.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,.04), 0 2px 4px rgba(0,0,0,.04);
    --shadow-lg: 0 10px 25px rgba(0,0,0,.06), 0 4px 10px rgba(0,0,0,.04);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6;}

/* 通用按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all .15s;white-space:nowrap;text-decoration:none;font-family:inherit;color:var(--text);}
.btn:disabled{opacity:.45;cursor:not-allowed;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 2px rgba(37,99,235,.3);}
.btn-primary:hover:not(:disabled){background:var(--primary-dark);box-shadow:0 2px 4px rgba(37,99,235,.35);}
.btn-success{background:var(--success);color:#fff;}
.btn-danger{background:#fff;color:var(--danger);border-color:#fecaca;}
.btn-danger:hover:not(:disabled){background:#fef2f2;border-color:#fca5a5;}
.btn-outline{background:#fff;border-color:var(--border);color:var(--text);}
.btn-outline:hover:not(:disabled){background:var(--bg);border-color:#d1d5db;}
.btn-sm{padding:5px 12px;font-size:13px;border-radius:5px;}
.btn-lg{padding:14px 32px;font-size:16px;border-radius:8px;}
.btn-block{width:100%;}
.btn-group{display:flex;gap:8px;flex-wrap:wrap;}

/* Badge */
.badge{display:inline-block;padding:3px 10px;border-radius:10px;font-size:12px;font-weight:500;}
.badge-success{background:#ecfdf5;color:var(--success);}
.badge-danger{background:#fef2f2;color:var(--danger);}
.badge-warning{background:#fffbeb;color:var(--warning);}
.badge-gray{background:var(--bg);color:var(--text2);}
.badge-primary{background:var(--primary-light);color:var(--primary);}

/* Panel / Card */
.panel{background:var(--card);border-radius:12px;border:1px solid var(--border);margin-bottom:16px;box-shadow:var(--shadow);}
.panel-header{padding:16px 20px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;}
.panel-header h2{font-size:15px;font-weight:600;color:var(--text);}
.panel-body{padding:20px;}
.panel-hint{font-size:13px;color:var(--text2);}

/* Form */
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:5px;}
.form-group .hint{font-size:12px;color:var(--text3);margin-top:3px;}
input,textarea,select{width:100%;padding:10px 14px;background:#fff;border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:14px;font-family:inherit;transition:border .15s,box-shadow .15s;}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1);}
input::placeholder,textarea::placeholder{color:var(--text3);}
textarea{resize:vertical;min-height:60px;}
.form-row{display:flex;gap:14px;}
.flex-1{flex:1;}
.input-inline{width:auto;min-width:150px;padding:8px 12px;font-size:13px;}
.form-hint{font-size:12px;color:var(--text2);margin-top:4px;}

/* Table */
.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:13px;}
thead{background:var(--bg);}
th{padding:11px 14px;text-align:left;font-weight:600;color:var(--text2);border-bottom:1px solid var(--border);font-size:12px;letter-spacing:.3px;}
td{padding:11px 14px;border-bottom:1px solid var(--border-light);}
tbody tr:hover td{background:var(--card-hover);}
.td-actions{white-space:nowrap;}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.35);display:flex;align-items:center;justify-content:center;z-index:1000;backdrop-filter:blur(2px);}
.modal-box{background:var(--card);border-radius:12px;width:90%;max-width:560px;max-height:85vh;overflow-y:auto;box-shadow:var(--shadow-lg);}
.modal-header{padding:18px 22px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;font-size:16px;font-weight:600;}
.modal-close{background:none;border:none;color:var(--text3);font-size:22px;cursor:pointer;padding:4px;line-height:1;}
.modal-close:hover{color:var(--text);}
.modal-body{padding:22px;}
.modal-footer{padding:14px 22px;border-top:1px solid var(--border-light);display:flex;gap:8px;justify-content:flex-end;}
.modal-form .form-group{margin-bottom:14px;}
.modal-form label{font-size:13px;font-weight:600;color:var(--text);}

/* Toolbar */
.toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;gap:12px;flex-wrap:wrap;}
.toolbar-left,.toolbar-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}

/* Stats */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:20px;}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:22px;box-shadow:var(--shadow);transition:box-shadow .2s;}
.stat-card:hover{box-shadow:var(--shadow-md);}
.stat-card .stat-icon{font-size:24px;margin-bottom:8px;}
.stat-card .stat-value{font-size:32px;font-weight:700;color:var(--text);line-height:1;}
.stat-card .stat-label{font-size:13px;color:var(--text2);margin-top:6px;}

/* Empty */
.empty{text-align:center;color:var(--text3);padding:48px 20px;font-size:14px;}
.empty .empty-icon{font-size:40px;margin-bottom:12px;display:block;}

/* Toast */
.toast{position:fixed;top:24px;right:24px;z-index:2000;padding:12px 20px;border-radius:8px;color:#fff;font-size:14px;font-weight:500;opacity:0;transform:translateY(-10px);transition:all .3s;pointer-events:none;box-shadow:var(--shadow-lg);}
.toast.show{opacity:1;transform:translateY(0);}
.toast.success{background:var(--success);}
.toast.error{background:var(--danger);}
.toast.info{background:var(--primary);}

/* Chart */
.chart-bar{display:flex;align-items:flex-end;gap:12px;height:180px;padding-top:8px;}
.chart-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.chart-bar-fill{width:100%;max-width:44px;background:linear-gradient(180deg,var(--primary),#3b82f6);border-radius:6px 6px 0 0;min-height:3px;transition:height .6s cubic-bezier(.4,0,.2,1);}
.chart-val{font-size:12px;font-weight:600;color:var(--text);margin-top:6px;}
.chart-label{font-size:11px;color:var(--text2);margin-top:3px;}

/* Avatar */
.avatar-sm{width:36px;height:36px;border-radius:8px;object-fit:cover;background:var(--border-light);}

/* Pager */
.pager{display:flex;justify-content:center;gap:6px;padding:16px;}

/* Code */
code{font-family:'SF Mono','Consolas','Monaco',monospace;background:var(--primary-light);padding:3px 8px;border-radius:5px;font-size:13px;color:var(--primary);font-weight:500;}

/* Settings grid */
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
@media(max-width:768px){.settings-grid{grid-template-columns:1fr;}.form-row{flex-direction:column;}}

/* Nav tabs */
.nav-tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:20px;}
.nav-tab{padding:10px 20px;cursor:pointer;font-size:14px;font-weight:500;color:var(--text2);border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s;}
.nav-tab:hover{color:var(--text);}
.nav-tab.active{color:var(--primary);border-bottom-color:var(--primary);}