:root{--bg:#f6f7f9;--card:#fff;--ink:#1f2530;--muted:#6b7280;--brand:#2b6cb0;--brand2:#234e70;--ok:#2f855a;--warn:#b7791f;--line:#e2e8f0;}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
header{background:linear-gradient(180deg,var(--brand),var(--brand2));color:#fff;padding:16px 20px 0}
h1{margin:0 0 12px;font-size:20px}
.ver{font-size:12px;font-weight:400;opacity:.85;margin-left:8px}
#tabs{display:flex;flex-wrap:wrap;gap:4px}
#tabs button{background:rgba(255,255,255,.12);color:#fff;border:none;padding:10px 14px;border-radius:8px 8px 0 0;cursor:pointer;font-size:14px}
#tabs button.active{background:var(--bg);color:var(--ink);font-weight:700}
main{max-width:860px;margin:20px auto;padding:0 16px}
.tab{display:none;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.tab.active{display:block}
h2{margin:0 0 12px;font-size:18px}
h3{font-size:15px;margin:16px 0 6px}
.hint{color:var(--muted);font-size:14px}
.muted{color:var(--muted);font-size:12px}
button.primary{background:var(--brand);color:#fff;border:none;padding:10px 18px;border-radius:8px;font-size:15px;cursor:pointer}
button.primary:hover{background:var(--brand2)}
button.ghost{background:#fff;border:1px solid var(--brand);color:var(--brand);padding:8px 14px;border-radius:8px;cursor:pointer;margin-left:8px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid label{display:flex;flex-direction:column;font-size:13px;color:var(--muted);gap:4px}
.grid label.check{flex-direction:row;align-items:center;gap:8px;grid-column:1/-1;color:var(--ink);font-size:14px}
.grid input,.grid select,.grid textarea{font-size:15px;padding:8px;border:1px solid var(--line);border-radius:6px;color:var(--ink);font-family:inherit}
.grid textarea{min-height:70px;resize:vertical}
.form-actions{grid-column:1/-1;display:flex;align-items:center;gap:10px}
.msg{font-size:14px}.msg.ok{color:var(--ok)}.msg.err{color:#c53030}
.result{margin-top:16px}
.q{border:1px solid var(--line);border-radius:8px;padding:12px;margin-bottom:10px}
.q p{margin:0 0 8px;font-weight:600}
.q label{display:inline-flex;align-items:center;gap:6px;margin-right:14px;font-size:14px}
.rec{font-size:22px;font-weight:800;color:var(--brand)}
.reasons{margin:8px 0}
.compare{border-collapse:collapse;width:100%;margin-top:12px;font-size:14px}
.compare th,.compare td{border:1px solid var(--line);padding:8px;text-align:left}
.compare th{background:#f0f4f8}
.steps{list-style:none;padding:0;counter-reset:step}
.steps li{border:1px solid var(--line);border-radius:8px;padding:12px 12px 12px 48px;margin-bottom:8px;position:relative}
.steps li::before{counter-increment:step;content:counter(step);position:absolute;left:12px;top:12px;width:26px;height:26px;background:var(--brand);color:#fff;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:13px}
.steps li.done{background:#f0fff4;border-color:#9ae6b4}
.steps .st-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.steps .st-title{font-weight:700}
.steps .est{font-size:12px;color:var(--warn)}
.steps .st-desc{font-size:13px;color:#444;margin:6px 0}
.steps a{font-size:12px;color:var(--brand)}
.cost-table{border-collapse:collapse;width:100%;font-size:15px}
.cost-table th,.cost-table td{border:1px solid var(--line);padding:8px}
.cost-table td.num{text-align:right;font-variant-numeric:tabular-nums}
.cost-table tr.total{font-weight:800;background:#f0f4f8}
.note{font-size:12px;color:var(--muted)}
.draft-banner{background:#fffbeb;border:1px solid #f6e05e;color:#744210;padding:8px 12px;border-radius:6px;font-size:13px;margin-bottom:10px}
.doc{border:1px solid var(--line);border-radius:8px;padding:16px;margin-bottom:16px;background:#fff}
.doc .kv{border-collapse:collapse}.doc .kv th{text-align:left;background:#f7fafc;padding:6px 10px;border:1px solid var(--line)}.doc .kv td{padding:6px 10px;border:1px solid var(--line)}
.doc-footer{font-size:11px;color:var(--muted);border-top:1px dashed var(--line);padding-top:8px;margin-top:12px}
.after{border-collapse:collapse;width:100%;font-size:14px}
.after th,.after td{border:1px solid var(--line);padding:8px;text-align:left}
.after th:first-child,.after td:first-child{width:36px;text-align:center}
#disclaimer{max-width:860px;margin:20px auto 40px;padding:12px 16px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}
@media(max-width:640px){.grid{grid-template-columns:1fr}}
@media print{header,#tabs,footer,button{display:none!important}.tab{display:block!important;box-shadow:none;border:none}#tab-docs~*{display:none}}