:root{--navy:#1f2a44;--gold:#b8860b;--bg:#f7f9fc;--card:#fff;--ink:#1a1f2b;--muted:#5b6573;--line:#e2e8f0}*{box-sizing:border-box}body{margin:0;font-family:var(--font,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif);background:var(--bg);color:var(--ink);line-height:1.6}a{color:var(--navy)}.site-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:var(--navy)}.site-header .brand{color:#fff;font-weight:700;text-decoration:none;font-size:18px}.site-header nav a{color:#cdd6e6;margin-left:16px;text-decoration:none;font-size:14px}.site-header nav a:hover{color:#fff}.container{max-width:780px;margin:0 auto;padding:24px 20px 48px}h1{font-size:30px;margin:8px 0 4px}h1,h2{color:var(--navy);font-family:var(--fontHead,inherit)}h2{font-size:22px;margin-top:32px}.lead{color:var(--muted);font-size:17px;margin-top:0}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin:20px 0;box-shadow:0 1px 3px rgba(0,0,0,.04)}.ad-slot{min-height:90px;display:flex;align-items:center;justify-content:center;border:1px dashed var(--line);border-radius:8px;color:var(--muted);font-size:13px;margin:20px 0}button{background:var(--navy);color:#fff;border:0;border-radius:8px;padding:10px 16px;font-size:15px;cursor:pointer}button:hover{background:var(--navyDark,#16203a)}input[type=range]{width:100%}.output{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:18px;background:#0f1729;color:#e6edf7;padding:14px;border-radius:8px;word-break:break-all;min-height:24px}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:10px 0}label{font-size:14px;color:var(--ink)}.site-footer{border-top:1px solid var(--line);padding:20px;text-align:center;color:var(--muted);font-size:13px;background:#fff}.site-footer a{color:var(--navy);text-decoration:none}.faq details{border:1px solid var(--line);border-radius:8px;padding:0;margin:10px 0;background:var(--card)}.faq summary{cursor:pointer;padding:14px 16px;font-weight:600;color:var(--navy);list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";float:right;color:var(--gold);font-weight:700}.faq details[open] summary:after{content:"\2212"}.faq details p{padding:0 16px 14px;margin:0;color:var(--ink)}.byline{color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:14px;margin-top:28px}section{margin-top:4px}.ip-detail{display:flex;flex-wrap:wrap;gap:8px 24px;margin:14px 0 8px}.ip-detail div{display:flex;flex-direction:column}.ip-detail dt{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.ip-detail dd{margin:0;font-weight:600;color:var(--ink)}