*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:#1d2330;background:#f6f7fb}
a{color:#4b3bd6}
.proof{background:#220d6b;color:#fff;font-size:.9rem;padding:10px 16px;text-align:center}
.proof a{color:#10d8e4}
header{background:#fff;border-bottom:1px solid #e4e7ee;padding:12px 16px;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between}
.brand{font-weight:700;font-size:1.15rem;text-decoration:none;color:#220d6b}
.brand span{color:#6c5cf2;font-weight:400}
nav{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center}
nav a{text-decoration:none;color:#444;padding:4px 2px;border-bottom:2px solid transparent}
nav a.on{color:#220d6b;border-bottom-color:#6c5cf2}
nav .sub{color:#999;font-size:.85rem;margin-left:6px}
main{max-width:1200px;margin:0 auto;padding:24px 16px 48px}
h1{font-size:1.7rem;margin:.2rem 0 .4rem}
.intro{color:#4b5263;margin:.2rem 0 .6rem}
.links{font-size:.9rem;margin:0 0 20px}
.code{margin-top:40px;background:#fff;border:1px solid #e4e7ee;border-radius:10px;padding:16px 20px}
.code h2{margin:0 0 6px;font-size:1.2rem}
.code pre{white-space:pre-wrap;word-break:break-all;background:#1d2330;color:#e6e9ef;border-radius:8px;padding:14px;font-size:.78rem;max-height:220px;overflow:auto}
.copy{background:#6c5cf2;color:#fff;border:0;border-radius:6px;padding:8px 14px;font-size:.95rem;cursor:pointer}
.note{font-size:.88rem;color:#5d6675}
footer{text-align:center;font-size:.85rem;color:#777;padding:24px 16px}