body{font:15px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;max-width:760px;margin:0 auto;padding:24px 18px 60px;color:#1a2530;background:#f6f8fa}
h1{font-size:22px;margin:0 0 4px}h2{font-size:17px;margin:26px 0 6px}p,li{color:#2c3a47}
.meta{color:#6b7c8c;font-size:13px;margin-bottom:18px}.box{background:#fff;border:1px solid #dde3ea;border-radius:12px;padding:18px 20px}
.ph{background:#fff3cd;padding:0 4px;border-radius:4px}a{color:#0b6fcb}
@media (prefers-color-scheme:dark){body{background:#0e141b;color:#e6edf3}p,li{color:#c9d4de}.box{background:#16202a;border-color:#2a3643}.ph{background:#5a4a12;color:#fff}}