:root{--gutter-h:24px;--base:24px;--base-body-size:14px;--base-line-height:1.6;--style-radius-s:6px;--style-radius-m:8px;--style-radius-l:12px;--nav-trans-time:200ms;--box-shadow-lg:0 4px 20px rgba(0,0,0,0.08);--box-shadow-m:0 2px 12px rgba(0,0,0,0.06);--box-shadow-s:0 1px 6px rgba(0,0,0,0.04)}