:root{--bg:#f2f0f7;--surface:#fff;--ink:#1b1327;--muted:#5c5470;--line:#e6e1f0;--brand:#6a1fc7;--brand2:#8b3ff0}
@media(prefers-color-scheme:dark){:root{--bg:#0c0912;--surface:#161020;--ink:#eee9f7;--muted:#a89fbf;--line:#2a2140;--brand:#a870f7;--brand2:#c193ff}}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--ink);line-height:1.9;
 font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP",system-ui,sans-serif;
 -webkit-text-size-adjust:100%}
.top{background:linear-gradient(135deg,#4d1596,#7a2fe0);color:#fff;padding:calc(20px + env(safe-area-inset-top)) 20px 22px}
.top .in{max-width:720px;margin:0 auto}
.top a.home{color:#fff;text-decoration:none;font-weight:800;font-size:13px;opacity:.9;display:inline-flex;gap:6px;align-items:center}
.top h1{font-size:23px;font-weight:900;margin-top:12px;letter-spacing:.01em}
.top .sub{font-size:12px;opacity:.85;margin-top:4px}
main{max-width:720px;margin:0 auto;padding:26px 20px 60px}
h2{font-size:17px;font-weight:800;margin:30px 0 10px;color:var(--brand);border-left:4px solid var(--brand);padding-left:11px}
h2:first-of-type{margin-top:6px}
p,li{font-size:14.5px;color:var(--ink)}
p{margin:10px 0}
ul{margin:10px 0 10px 4px;padding-left:20px}
li{margin:6px 0}
a{color:var(--brand2);word-break:break-all}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:14px 0}
.dl{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;font-size:14.5px}
.dl dt{font-weight:800;color:var(--muted);white-space:nowrap}
.updated{font-size:12px;color:var(--muted);margin-top:8px}
.foot{border-top:1px solid var(--line);margin-top:40px;padding-top:20px;font-size:12.5px;color:var(--muted);text-align:center}
.foot a{margin:0 8px;display:inline-block;padding:4px 0}
.btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:800;
 padding:13px 22px;border-radius:12px;font-size:15px;margin-top:6px}