:root{--color-primary: #409eff;--color-success: #67c23a;--color-warning: #e6a23c;--color-danger: #f56c6c;--color-info: #909399;--color-purple: #7c3aed;--color-cyan: #06b6d4;--bg-sidebar: #1d1e2c;--bg-page: #f0f2f5;--color-text: #303133;--color-text-secondary: #909399;--radius: 8px;--gap-section: 16px;--shadow-card: 0 1px 3px rgba(0,0,0,.05);--shadow-hover: 0 4px 12px rgba(0,0,0,.1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg-page)}.desktop-layout{height:100vh}.desktop-sidebar{background:var(--bg-sidebar);overflow-y:auto;border-right:none}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:20px 16px 16px;color:#fff;font-size:16px;font-weight:700;letter-spacing:1px}.sidebar-menu{border-right:none!important}.sidebar-menu .el-menu-item{margin:2px 8px;border-radius:6px;height:44px;line-height:44px}.sidebar-menu 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