:root{--ink:#14202b;--mut:#51606d;--brand:#0b5c8a;--bg:#f6f9fb;--card:#fff;--line:#d5e0e8}
*{box-sizing:border-box}body{margin:0;font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
header{background:var(--brand);color:#fff}header .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;padding-top:12px;padding-bottom:12px}
.brand{font-weight:700;font-size:1.2rem;color:#fff;text-decoration:none}nav a{color:#fff;margin-right:14px;text-decoration:none;opacity:.9;font-size:.95rem}nav a[aria-current],nav a:hover{text-decoration:underline;opacity:1}
main{padding-top:20px;padding-bottom:30px}h1{font-size:1.7rem;line-height:1.2}h2{font-size:1.2rem;margin-top:1.2em}h3{font-size:1rem;margin-bottom:.2em}
a{color:var(--brand)}.lead{font-size:1.08rem;color:var(--mut)}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:16px 0}
.notice{background:#fff7e0;border:1px solid #ecd48a;border-radius:8px;padding:10px 14px}
.hint,.stamp,small{color:var(--mut);font-size:.9rem}.tag{background:#e8f1f7;border-radius:4px;padding:1px 6px;font-size:.8rem}.src{font-size:.92rem;color:var(--mut)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}label{display:flex;flex-direction:column;font-size:.9rem;font-weight:600;gap:4px}
input,select{font:inherit;padding:8px;border:1px solid #9fb2c0;border-radius:6px;background:#fff}
.tablewrap{overflow-x:auto}table{border-collapse:collapse;width:100%;background:#fff;font-size:.93rem}th,td{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}thead th{background:#e8f1f7}caption{text-align:left;color:var(--mut);padding:4px 0}
ul.check{list-style:none;padding-left:0}ul.check li{padding-left:1.7em;position:relative;margin:.35em 0}ul.check li:before{content:"\2610";position:absolute;left:0}
.btn{background:var(--brand);color:#fff;border:0;border-radius:6px;padding:9px 16px;font:inherit;cursor:pointer}
.big{font-size:1.6rem;font-weight:700}.res{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}.res div{background:#eef5fa;border-radius:8px;padding:10px}
footer{border-top:1px solid var(--line);background:#fff;font-size:.88rem;color:var(--mut);padding:14px 0}
@media print{header,footer nav,.btn,.notice~.btn{display:none}body{background:#fff}.card{border:0;padding:0}}