:root{--bg:#fdfdfb;--text:#1d1f23;--muted:#6b7078;--link:#0b7a4b;--line:#e6e6e1}
@media (prefers-color-scheme:dark){:root{--bg:#121316;--text:#e7e8ea;--muted:#9aa0a8;--link:#19e08a;--line:#2a2c31}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:19px/1.75 Charter,"Iowan Old Style",Georgia,"Times New Roman",serif}
.wrap{max-width:700px;margin:0 auto;padding:0 20px}
a{color:var(--link)}
.bhead{padding:28px 0 8px;display:flex;align-items:center;justify-content:space-between;gap:12px;font:15px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.bhead a{color:var(--muted);text-decoration:none}
.bhead .logo{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700}
.bhead img{height:26px;width:auto;background:#05060a;border-radius:6px;padding:3px 6px}
h1{font-size:2rem;line-height:1.25;margin:36px 0 8px}
h2{font-size:1.35rem;line-height:1.3;margin:2.2em 0 .5em}
.meta{color:var(--muted);font:15px/1.4 system-ui,sans-serif;margin-bottom:28px}
article img{max-width:100%;height:auto}
article li{margin:.3em 0}
.posts{list-style:none;padding:0;margin:24px 0}
.posts li{padding:16px 0;border-bottom:1px solid var(--line)}
.posts time{display:block;color:var(--muted);font:14px/1.4 system-ui,sans-serif}
.posts a{font-size:1.15rem;font-weight:700;text-decoration:none;color:var(--text)}
.posts a:hover{color:var(--link)}
.posts p{margin:4px 0 0;color:var(--muted);font-size:1rem}
.cta{margin:48px 0 0;padding:20px 0;border-top:1px solid var(--line);font-size:1rem}
.bfoot{margin:48px 0 32px;color:var(--muted);font:14px/1.6 system-ui,sans-serif}
.bfoot a{color:var(--muted)}
.crumbs{margin-top:28px;color:var(--muted);font:14px/1.4 system-ui,sans-serif}
.crumbs a{color:var(--muted)}
.crumbs+article h1{margin-top:10px}
h3{font-size:1.12rem;margin:1.8em 0 .4em}
.toc{border:1px solid var(--line);border-radius:8px;padding:12px 18px;margin:0 0 28px;font-size:1rem}
.toc summary{cursor:pointer;font:600 15px/1.4 system-ui,sans-serif}
.toc ol{margin:8px 0 0;padding-left:20px}
figure{margin:32px 0}
figure img{width:100%;height:auto;border-radius:6px;display:block}
figcaption{color:var(--muted);font:14px/1.5 system-ui,sans-serif;margin-top:8px}
figcaption .credit{display:block;font-size:12px}
figcaption a{color:var(--muted)}
.faq h3{margin-top:1.4em}
.related{margin-top:40px;font-size:1rem}
.related h2{font-size:1.1rem}