:root{--a:#0b5fff;--bg:#fff;--fg:#1a1a1a;--mut:#555}*{box-sizing:border-box}body{font:16px/1.6 system-ui,sans-serif;margin:0;color:var(--fg);background:var(--bg)}
header,main,footer{max-width:960px;margin:auto;padding:1rem}header a{margin-right:1rem}nav{font-size:.95rem}
table{border-collapse:collapse;width:100%;font-size:.93rem}th,td{border-bottom:1px solid #ddd;padding:.35rem;text-align:left}th{background:#f4f6fa;position:sticky;top:0}
input[type=number]{width:4.5rem}.out{display:flex;gap:1rem;flex-wrap:wrap;background:#eef3ff;padding:1rem;border-radius:8px;position:sticky;bottom:0}
.out div{flex:1;min-width:180px}.out b{display:block;font-size:1.5rem}.note{color:var(--mut);font-size:.9rem}.aff{border:2px dashed #c00;padding:.5rem;color:#c00}
footer{color:var(--mut);font-size:.85rem;border-top:1px solid #ddd}