:root{--space-black: #0B0E1A;--space-dark: #111827;--space-blue: #1E2A4A;--gold: #D4A843;--gold-light: #E8C97A;--gold-dark: #B8912E;--accent-blue: #4A90D9;--accent-blue-light: #6DB3F0;--accent-teal: #2DD4BF;--bg-page: #F0F2F7;--bg-card: #FFFFFF;--border-light: #E5E7EB;--border-medium: #D1D5DB;--text-primary: #1F2937;--text-secondary: #6B7280;--text-muted: #9CA3AF;--text-sidebar: #C8CDD8;--text-sidebar-active: #FFFFFF;--success: #10B981;--warning: #F59E0B;--danger: #EF4444;--info: #3B82F6;--sidebar-width: 220px;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 4px 6px rgba(0,0,0,.07);--shadow-lg: 0 10px 25px rgba(0,0,0,.1);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono: "SF Mono", "Cascadia Code", "Consolas", monospace}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:14px}body{font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-page);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{text-decoration:none;color:inherit}button{cursor:pointer;font-family:inherit}img{max-width:100%;display:block}input,select,textarea{font-family:inherit;font-size:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--space-black);color:var(--text-sidebar);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;overflow-y:auto}.sidebar-logo{padding:24px 20px 20px;text-align:center;border-bottom:1px solid rgba(255,255,255,.08)}.sidebar-logo .logo-icon{font-size:36px;line-height:1}.sidebar-logo .logo-title{font-size:13px;font-weight:600;color:var(--gold);margin-top:6px;letter-spacing:1px}.sidebar-logo .logo-sub{font-size:11px;color:var(--text-sidebar);opacity:.6;margin-top:2px}.sidebar-nav{flex:1;padding:12px 0}.sidebar-section{padding:16px 20px 6px;font-size:11px;text-transform:uppercase;letter-spacing:1.5px;color:var(--text-muted);opacity:.7}.sidebar-item{display:flex;align-items:center;gap:10px;padding:10px 20px;font-size:13.5px;color:var(--text-sidebar);transition:all .2s;border-left:3px solid transparent;cursor:pointer}.sidebar-item:hover{background:#ffffff0d;color:var(--text-sidebar-active)}.sidebar-item.active{background:#d4a8431f;color:var(--gold-light);border-left-color:var(--gold);font-weight:600}.sidebar-item .nav-icon{width:18px;height:18px;flex-shrink:0}.sidebar-footer{padding:16px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:var(--text-muted)}.sidebar-footer .user-info{display:flex;align-items:center;gap:8px}.sidebar-footer .user-avatar{width:32px;height:32px;border-radius:50%;background:var(--gold-dark);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}.main-content{margin-left:var(--sidebar-width);flex:1;min-width:0}.page-header{background:var(--bg-card);border-bottom:1px solid var(--border-light);padding:16px 28px;display:flex;align-items:center;justify-content:space-between}.page-header h1{font-size:18px;font-weight:700;color:var(--text-primary)}.page-body{padding:24px 28px;position:relative}.card{background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--border-light)}.card-header{padding:16px 20px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between}.card-header h2{font-size:15px;font-weight:600;color:var(--text-primary)}.card-body{padding:20px}.stat-row{display:grid;gap:16px;margin-bottom:20px}.stat-row.cols-2{grid-template-columns:repeat(2,1fr)}.stat-row.cols-3{grid-template-columns:repeat(3,1fr)}.stat-row.cols-4{grid-template-columns:repeat(4,1fr)}.stat-card{background:var(--bg-card);border-radius:var(--radius-md);padding:18px 20px;box-shadow:var(--shadow-sm);border:1px solid var(--border-light)}.stat-card .stat-label{font-size:12.5px;color:var(--text-secondary);margin-bottom:6px}.stat-card .stat-value{font-size:28px;font-weight:700;color:var(--text-primary);line-height:1.1}.stat-card .stat-change{font-size:12px;margin-top:4px}.stat-card .stat-change.up{color:var(--success)}.stat-card .stat-change.down{color:var(--danger)}.section-title{font-size:15px;font-weight:600;color:var(--text-primary);margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--gold);display:inline-block}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table thead th{background:#f8fafc;padding:10px 14px;text-align:left;font-weight:600;color:var(--text-secondary);font-size:12px;text-transform:uppercase;letter-spacing:.5px;border-bottom:2px solid var(--border-light)}.data-table tbody td{padding:10px 14px;border-bottom:1px solid var(--border-light);color:var(--text-primary)}.data-table tbody tr:hover{background:#f8fafc}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;border:1px solid transparent;transition:all 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#d4a8431f}.card-grid{display:grid;gap:16px}.card-grid.cols-3{grid-template-columns:repeat(3,1fr)}.card-grid.cols-4{grid-template-columns:repeat(4,1fr)}.chart-box{width:100%;height:300px}.chart-box.tall{height:360px}.chart-box.short{height:240px}.filter-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.filter-bar select{padding:6px 12px;border:1px solid var(--border-medium);border-radius:var(--radius-sm);background:var(--bg-card);font-size:13px;color:var(--text-primary)}.heatmap-grid{display:grid;grid-template-columns:auto repeat(11,1fr);gap:3px;font-size:11px}.heatmap-cell{aspect-ratio:1;border-radius:3px;min-width:32px}.heatmap-label{display:flex;align-items:center;padding-right:8px;font-size:11px;color:var(--text-secondary)}.heatmap-header{text-align:center;color:var(--text-secondary);font-size:10px}.funnel-container{display:flex;align-items:center;gap:4px;overflow-x:auto;padding:10px 0}.funnel-step{flex-shrink:0;text-align:center;position:relative}.funnel-bar{min-width:100px;padding:12px 10px;background:linear-gradient(180deg,var(--space-blue),var(--space-dark));color:#fff;border-radius:var(--radius-sm)}.funnel-bar .funnel-count{font-size:20px;font-weight:700}.funnel-bar .funnel-pct{font-size:12px;opacity:.8}.funnel-arrow{flex-shrink:0;color:var(--text-muted);font-size:18px;padding:0 2px}.funnel-drop{font-size:11px;color:var(--danger);margin-top:4px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:1200px){.stat-row.cols-4,.card-grid.cols-3,.card-grid.cols-4{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr}}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--space-black) 0%,#1a1f35 50%,var(--space-blue) 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h3{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:12px}.empty-state{text-align:center;padding:40px 20px;color:var(--text-muted)}.empty-state .empty-icon{font-size:40px;margin-bottom:8px;opacity:.6}