:root{--bg-main: #F8FAFC;--bg-card: #FFFFFF;--bg-card-hover: #F1F5F9;--bg-subtle: #F1F5F9;--primary: #1E60D5;--primary-hover: #174EB8;--primary-light: #EFF6FF;--primary-border: #BFDBFE;--secondary: #475569;--success: #10B981;--success-light: #ECFDF5;--warning: #F59E0B;--warning-light: #FFFBEB;--danger: #EF4444;--danger-light: #FEF2F2;--text-main: #0F172A;--text-body: #334155;--text-muted: #64748B;--text-subtle: #94A3B8;--border-color: #E2E8F0;--border-light: #F1F5F9;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -1px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -2px rgba(0, 0, 0, .03);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-body);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}button,input,select,textarea{font-family:inherit;font-size:inherit}.app-container{display:flex;min-height:100vh;flex-direction:column;background-color:var(--bg-main)}.main-wrapper{display:flex;flex:1;min-height:calc(100vh - 60px)}.sidebar{width:240px;background-color:var(--bg-card);border-right:1px solid var(--border-color);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{height:64px;display:flex;align-items:center;gap:12px;padding:0 20px;border-bottom:1px solid var(--border-color)}.sidebar-header h2{font-size:15px;font-weight:700;color:var(--primary);letter-spacing:.5px}.nav-menu{padding:16px 12px;display:flex;flex-direction:column;gap:4px;flex:1}.nav-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:var(--radius-md);color:var(--text-body);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;border:1px solid transparent}.nav-item:hover{background-color:var(--bg-subtle);color:var(--primary)}.nav-item.active{background-color:var(--primary-light);color:var(--primary);border-color:var(--primary-border);font-weight:600}.nav-icon{width:18px;height:18px;flex-shrink:0}.main-content{flex:1;display:flex;flex-direction:column;overflow-x:hidden}.topbar{height:64px;background-color:var(--bg-card);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 28px}.topbar-title{font-size:17px;font-weight:600;color:var(--text-main);display:flex;align-items:center;gap:8px}.topbar-user{display:flex;align-items:center;gap:16px}.user-badge{display:flex;align-items:center;gap:10px;background-color:var(--bg-subtle);padding:6px 12px;border-radius:var(--radius-full)}.user-avatar{width:28px;height:28px;border-radius:50%;background-color:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}.page-body{flex:1;padding:24px 28px}.global-footer{padding:14px 20px;text-align:center;font-size:12px;color:var(--text-subtle);background-color:var(--bg-card);border-top:1px solid var(--border-color);-webkit-user-select:none;user-select:none}.card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:20px;margin-bottom:20px}.card-title{font-size:16px;font-weight:600;color:var(--text-main);margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;font-size:13px;font-weight:500;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all .2s ease}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover)}.btn-secondary{background-color:var(--bg-card);border-color:var(--border-color);color:var(--text-body)}.btn-secondary:hover{background-color:var(--bg-subtle);color:var(--text-main)}.btn-success{background-color:var(--success);color:#fff}.btn-danger{background-color:var(--danger);color:#fff}.btn-sm{padding:4px 10px;font-size:12px;border-radius:var(--radius-sm)}.table-wrapper{overflow-x:auto;border-radius:var(--radius-md);border:1px solid var(--border-color)}table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}th{background-color:var(--bg-subtle);color:var(--text-muted);font-weight:600;padding:12px 14px;border-bottom:1px solid var(--border-color)}td{padding:12px 14px;border-bottom:1px solid var(--border-color);color:var(--text-body)}tr:last-child td{border-bottom:none}tr:hover td{background-color:var(--bg-card-hover)}.badge{display:inline-flex;align-items:center;padding:3px 8px;border-radius:var(--radius-sm);font-size:12px;font-weight:500}.badge-primary{background-color:var(--primary-light);color:var(--primary)}.badge-success{background-color:var(--success-light);color:var(--success)}.badge-warning{background-color:var(--warning-light);color:var(--warning)}.badge-danger{background-color:var(--danger-light);color:var(--danger)}.badge-gray{background-color:var(--bg-subtle);color:var(--text-muted)}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--text-main);margin-bottom:6px}.form-control{width:100%;padding:9px 12px;font-size:13px;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:#fff;color:var(--text-main);outline:none;transition:border-color .2s}.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px #1e60d51f}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#0f172a66;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:999;padding:20px}.modal-card{background-color:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:600px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden}.modal-card-lg{max-width:900px}.modal-header{padding:16px 20px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.modal-header h3{font-size:16px;font-weight:600;color:var(--text-main)}.modal-body{padding:20px;overflow-y:auto;flex:1}.modal-footer{padding:14px 20px;border-top:1px solid var(--border-color);display:flex;justify-content:flex-end;gap:10px;background-color:var(--bg-subtle)}.login-container{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;background:linear-gradient(135deg,#f0f4f8,#e2e8f0);padding:20px}.login-box{width:100%;max-width:420px;background-color:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);border:1px solid var(--border-color);padding:36px 32px}.login-header{text-align:center;margin-bottom:28px}.login-logo-icon{width:52px;height:52px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);background-color:var(--primary-light);color:var(--primary)}.login-header h1{font-size:20px;font-weight:700;color:var(--text-main);letter-spacing:.5px}.login-header p{font-size:13px;color:var(--text-muted);margin-top:4px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px}.stat-card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:18px 20px;display:flex;align-items:center;gap:16px}.stat-icon-wrapper{width:46px;height:46px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.stat-val{font-size:22px;font-weight:700;color:var(--text-main)}.stat-label{font-size:12px;color:var(--text-muted)}