html,body,#app{height:100%}*{box-sizing:border-box;margin:0;padding:0}:root{--primary:#409eff;--success:#67c23a;--warning:#e6a23c;--danger:#f56c6c;--info:#909399;--text-primary:#303133;--text-regular:#606266;--text-secondary:#909399;--bg-page:#f5f7fa;--sidebar-width:240px}body{color:var(--text-primary);background:var(--bg-page);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}.page-title{color:var(--text-primary);margin-bottom:20px;font-size:20px;font-weight:500}.card{background:#fff;border-radius:8px;padding:20px;box-shadow:0 1px 4px #00000014}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:24px;display:grid}.stat-card{background:#fff;border-radius:8px;padding:16px 20px;box-shadow:0 1px 4px #00000014}.stat-card .label{color:var(--text-secondary);margin-bottom:8px;font-size:13px}.stat-card .value{color:var(--text-primary);font-size:28px;font-weight:500}.stat-card .unit{color:var(--text-secondary);margin-left:4px;font-size:14px}