:root{--bg:#f9fafb;--fg:#1f2937;--muted:#6b7280;--ink:#111827;--card:#ffffff;--bd:#e5e7eb;--shadow:0 2px 8px rgba(0,0,0,.04)}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--fg);font:15px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}.container{max-width:980px;margin:32px auto;padding:0 16px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}.title{margin:0;font-size:24px}.card{background:var(--card);border:1px solid var(--bd);border-radius:12px;box-shadow:var(--shadow);padding:18px}.card+.card{margin-top:16px}h2{margin:10px 0 8px 0}h3{margin:10px 0 6px 0}p{margin:8px 0}ul{margin:8px 0 8px 18px}a{color:#111827;text-decoration:none;background-color:transparent;text-underline-offset:.15em;text-decoration-thickness:from-font;text-decoration-skip-ink:auto;transition:color .15s ease}a:visited{color:#111827}a:hover{text-decoration:underline}a:focus{outline:2px dashed #111827;outline-offset:2px;text-decoration:underline}a:active{color:#111827}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border:1px solid var(--bd);border-radius:10px;background:#111827;color:#fff;text-decoration:none;font-weight:600}.btn:hover{background:#1f2432;border-color:#9ca3af}a.btn,a.btn:visited{color:#fff}footer{margin-top:24px;padding:12px 0;border-top:1px solid var(--bd);font-size:14px}.footer-right{float:right;display:flex;justify-content:flex-end;color:var(--muted)}