.zb{margin:1.1em 0}.zb>:first-child{margin-top:0}.zb>:last-child{margin-bottom:0}
.ta-left{text-align:left}.ta-center{text-align:center}.ta-right{text-align:right}.ta-justify{text-align:justify;text-justify:inter-character}
.fs-sm{font-size:.875em}.fs-lg{font-size:1.2em}.fs-xl{font-size:1.5em}
.ti p{text-indent:2em}
.cb{padding:.85em 1.15em;border-radius:10px;border-left:4px solid}
.cb-note{border-color:#3b82f6;background:rgba(59,130,246,.09)}
.cb-tip{border-color:#16a34a;background:rgba(22,163,74,.09)}
.cb-warn{border-color:#f59e0b;background:rgba(245,158,11,.12)}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1.2em;align-items:start}.cols>.zb{margin:0}
.lh-100{line-height:1}.lh-125{line-height:1.25}.lh-150{line-height:1.5}.lh-175{line-height:1.75}.lh-200{line-height:2}.lh-225{line-height:2.25}.lh-250{line-height:2.5}.lh-275{line-height:2.75}.lh-300{line-height:3}
.ff-sans{font-family:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif}
.ff-serif{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif}
.ff-kai{font-family:"Kaiti SC",STKaiti,KaiTi,"BiauKai","AR PL UKai CN",serif}
.ff-fangsong{font-family:STFangsong,FangSong,"FangSong_GB2312",serif}
.ff-mono{font-family:"JetBrains Mono",Consolas,monospace}