:root{--fg:#1e2328;--muted:#6b7280;--line:#e3e6ea;--accent:#1f6feb;--bg:#fff}
*{box-sizing:border-box}
body{font-family:-apple-system,"Segoe UI",Roboto,Georgia,serif;color:var(--fg);background:var(--bg);margin:0;line-height:1.65}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line);background:#fafbfc}
header .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:14px;padding-bottom:14px}
.logo{font-weight:700;font-size:1.15rem;color:var(--fg);text-decoration:none;letter-spacing:.2px}
nav a{color:var(--muted);text-decoration:none;margin-left:14px;font-size:.95rem}
nav a:hover{color:var(--accent)}
main{padding:28px 0 48px}
h1{font-weight:600;font-size:1.8rem;margin:.2em 0 .4em}
h2{font-weight:600;font-size:1.25rem;margin:1.6em 0 .5em;padding-top:.3em;border-top:1px solid var(--line)}
h3{font-weight:600;font-size:1.05rem;margin:1.2em 0 .3em}
.lead{font-size:1.1rem;color:#333}
ul.cards{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
ul.cards a{display:block;border:1px solid var(--line);border-radius:10px;padding:14px;text-decoration:none;color:var(--fg);height:100%}
ul.cards a:hover{border-color:var(--accent)}
ul.cards b{display:block;margin-bottom:4px}
ul.cards span{color:var(--muted);font-size:.92rem}
dl dt{font-weight:600;margin-top:14px}
dl dd{margin:2px 0 0;color:#333}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:.88rem;padding:18px 0;background:#fafbfc}
@media(max-width:560px){ul.cards{grid-template-columns:1fr}}