*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"Hiragino Sans","Noto Sans JP",sans-serif;color:#1d2330;background:#f6f7fb}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}.top{background:#1d2330;color:#fff;padding:10px 0;font-size:15px}
h1{font-size:30px;line-height:1.2;margin:22px 0 8px}h2{margin:30px 0 8px}h3{margin:18px 0 6px}
.lede{font-size:17px;max-width:860px}fieldset{border:1px solid #d8dce8;background:#fff;border-radius:10px;margin:12px 0;padding:12px 14px}
legend{font-weight:700;padding:0 6px}.g{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;align-items:end}
label{display:block;font-size:14px}label.inl{display:inline}input,select,textarea{font:inherit;padding:6px 8px;border:1px solid #c5cbd9;border-radius:6px;background:#fff;max-width:100%}
.g input,.g select,.g textarea{width:100%}textarea{width:100%;margin-top:6px}
.btn{display:inline-block;background:#2f6fed;color:#fff;border:0;border-radius:8px;padding:9px 16px;font:600 15px system-ui,sans-serif;text-decoration:none;cursor:pointer}
.btn.ghost{background:#fff;color:#2f6fed;border:1px solid #2f6fed}.btnrow{padding-bottom:2px}
.hint{color:#5b6476;font-size:13px}table{border-collapse:collapse;width:100%;background:#fff;font-size:14px}
th,td{border-bottom:1px solid #eceef4;padding:5px 8px;text-align:left;vertical-align:top}th{background:#f0f2f8}
#out{background:#fff;border:2px solid #2f6fed;border-radius:12px;padding:6px 16px 14px;margin:18px 0}#out:empty{display:none}
.sum{font-size:19px;font-weight:700;margin:10px 0}.before{color:#a1341f;text-decoration:line-through}.after{color:#126b39;font-weight:600}
pre{white-space:pre-wrap;background:#f3f5fa;border:1px solid #e1e5ef;border-radius:8px;padding:10px;font:14px/1.5 ui-monospace,Menlo,Consolas,monospace}
.pay{background:#fffbe8;border:1px solid #efd98a;border-radius:10px;padding:10px 14px}
.lib{display:grid;grid-template-columns:280px 1fr;gap:18px}@media(max-width:760px){.lib{grid-template-columns:1fr}}
#plist{padding-left:22px;margin:8px 0}#plist li{margin:3px 0;cursor:pointer;color:#2f6fed}#plist li.on{font-weight:700;color:#1d2330}
.langs button{margin:0 4px 4px 0;border:1px solid #c5cbd9;background:#fff;border-radius:16px;padding:4px 12px;cursor:pointer;font:inherit}.langs button.on{background:#1d2330;color:#fff}
.warn{color:#8a5a00}details{background:#fff;border:1px solid #e1e5ef;border-radius:8px;padding:8px 12px;margin:6px 0}