:root{--fg:#1a1a1a;--muted:#5b5b5b;--bg:#fff;--line:#e3e3e3;--accent:#0b5fff}
*{box-sizing:border-box}body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--fg);background:var(--bg)}
main,.site-head,.site-foot{max-width:760px;margin:0 auto;padding:0 18px}
.site-head{display:flex;justify-content:space-between;align-items:center;padding-top:14px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.brand{font-weight:700;color:var(--fg);text-decoration:none}nav a{margin-left:14px}
a{color:var(--accent)}h1{line-height:1.2;margin-top:28px}.lead{font-size:1.1em}.meta{color:var(--muted);font-size:.9em}
.aff-note{background:#f6f6f6;border-left:3px solid var(--accent);padding:8px 12px;font-size:.9em;margin-top:18px}
.cards{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.card{border:1px solid var(--line);border-radius:8px;padding:14px;color:var(--fg);text-decoration:none}.card h2{margin:0 0 4px;font-size:1.1em}
.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{border-bottom:1px solid var(--line);padding:8px;text-align:left}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:6px 10px;border-radius:6px;text-decoration:none;white-space:nowrap}
.checklist{list-style:none;padding:0}.checklist li{padding:6px 0}
.calc{display:grid;gap:10px;max-width:340px}.calc input{width:100%;padding:6px;font:inherit}.result{font-size:1.2em;font-weight:700}
.site-foot{margin-top:48px;padding-top:16px;padding-bottom:32px;border-top:1px solid var(--line);color:var(--muted);font-size:.85em}
.safety-note{background:#fff7e6;border-left:3px solid #d98b00;padding:8px 12px;margin:14px 0}
.sample-flag{background:#ffe9e9;border:1px dashed #c33;padding:6px 10px;font-weight:700}
.rc-apps{display:grid;gap:6px;margin:10px 0}.rc-apps label{display:flex;gap:8px;align-items:center}
.rc-apps input[type=number]{width:90px;padding:4px}.rc-total{font-weight:700}
.warn{color:#b00}th button{all:unset;cursor:pointer;font-weight:700}