:root{--bg:#EEF0F1;--card:#FFFFFF;--ink:#14171A;--sub:#5E666D;--line:#C9CED2;--magenta:#D6006F;--link:#0077B0}
@media (prefers-color-scheme:dark){:root{--bg:#101315;--card:#1B1F22;--ink:#F1F3F4;--sub:#9AA3AA;--line:#343A3F;--magenta:#FF3C96;--link:#3DB4EA}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 -apple-system,BlinkMacSystemFont,"Hiragino Sans","Apple SD Gothic Neo",system-ui,sans-serif;overflow-wrap:break-word;line-break:strict;word-break:auto-phrase}
main{max-width:720px;margin:0 auto;padding:40px 16px 80px}
.sign{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font:800 22px/1 "Avenir Next Condensed","Arial Narrow",sans-serif;letter-spacing:.02em;text-decoration:none}
.sign::before{content:"";width:20px;height:20px;border:2px solid currentColor;border-radius:50%;background:linear-gradient(currentColor,currentColor) center/2px 100% no-repeat,linear-gradient(currentColor,currentColor) center/100% 2px no-repeat}
h1{font-size:30px;line-height:1.2;margin:.6em 0 .3em;font-weight:800}
h2{font-size:19px;margin:2em 0 .4em;padding-left:10px;border-left:4px solid var(--magenta)}
a{color:var(--link)}
.meta{color:var(--sub);font-size:15px}
.lang a{margin-right:12px}
.card{background:var(--card);border:1px solid var(--line);padding:18px 20px;margin:16px 0}
.card h2{margin-top:0}
hr{border:0;border-top:1px dashed var(--line);margin:56px 0}
ol,ul{padding-left:1.4em}li{margin:.3em 0}
footer{color:var(--sub);font-size:14px;text-align:center;margin-top:48px}