a,abbr,acronym,address,applet,article,aside,audio,b,big,blockquote,body,canvas,caption,center,cite,code,dd,del,details,dfn,div,dl,dt,em,embed,fieldset,figcaption,figure,footer,form,h1,h2,h3,h4,h5,h6,header,hgroup,html,i,iframe,img,ins,kbd,label,legend,li,mark,menu,nav,object,ol,output,p,pre,q,ruby,s,samp,section,small,span,strike,strong,sub,summary,sup,table,tbody,td,tfoot,th,thead,time,tr,tt,u,ul,var,video{border:0;font-size:100%;font:inherit;margin:0;padding:0;vertical-align:baseline}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:after,blockquote:before,q:after,q:before{content:"";content:none}table{border-collapse:collapse;border-spacing:0}:root{font-size:16px;--main-margin:1rem;--radius-block:1rem}@media (max-width:768px){:root{font-size:14px}}html{background:#000;scroll-behavior:smooth;-webkit-font-smoothing:subpixel-antialiased}body{color:#fff;font-family:Work Sans,游ゴシック,游ゴシック体,YuGothic,Yu Gothic,sans-serif;line-height:1.8}small{font-size:.8em}hr{border:0;height:1px;margin:6rem 0;position:relative;width:100%}hr:after,hr:before{background:#fff;content:"";height:1px;position:absolute;top:0;width:5rem}hr:before{left:0}hr:after{right:0}a{color:currentColor;text-decoration-thickness:1px}a[href^="#"]{text-decoration:none}p{margin:1lh 0}p:first-child{margin-top:0}p:last-child{margin-bottom:0}.section{margin:6rem 0;position:relative}body[lang=en] [lang=ja],body[lang=ja] [lang=en]{display:none}h2{font-size:min(2.5rem,8vw);margin-bottom:3rlh;position:sticky;top:0;z-index:30}h2 .en,h2 .ja{background:#000}h2 .en{padding-right:.3em;width:-moz-fit-content;width:fit-content}h2 .ja{font-size:.4em;font-weight:600;letter-spacing:.1em;padding-left:1ch;vertical-align:text-top}h2 .ja:after,h2 .ja:before{font-weight:200}h2 .ja:before{content:"["}h2 .ja:after{content:"]"}