.legacy{--tone-fill:var(--tone,var(--accent))}.legacy .card{padding:22px}.legacy .card+.card{margin-top:16px}.legacy .card h2{margin:0 0 14px;font-size:1.15rem}.legacy .form-grid{grid-template-columns:1fr;gap:0 16px;display:grid}.legacy .field .hint:empty{display:none}.legacy .field input[type=text],.legacy .field input[type=number],.legacy .field input[type=date],.legacy .field select{text-align:right;padding-right:48px}.legacy .field input[type=date],.legacy .field select{text-align:left;padding-right:14px}.legacy .input-wrap .unit{color:var(--text-3);pointer-events:none;font-weight:600;position:absolute;right:14px}.legacy .subhead{margin:20px 0 10px;font-size:1rem;font-weight:800}.legacy .radio-group{flex-wrap:wrap;gap:8px;display:flex}.legacy .radio-group label{border:1.5px solid var(--input-border);background:var(--surface);min-height:44px;color:var(--text-2);cursor:pointer;border-radius:999px;align-items:center;margin:0;padding:8px 18px;font-size:.95rem;font-weight:700;display:inline-flex;position:relative}.legacy .radio-group label input{opacity:0;cursor:pointer;width:100%;height:100%;margin:0;position:absolute;inset:0}.legacy .radio-group label:has(input:checked){background:var(--accent-btn);border-color:var(--accent-btn);color:var(--on-accent)}.legacy .radio-group label:has(input:focus-visible){outline:3px solid var(--accent);outline-offset:2px}.legacy .btn{font:inherit;background:var(--accent-btn);min-height:54px;color:var(--on-accent);cursor:pointer;border:0;border-radius:14px;justify-content:center;align-items:center;margin-top:20px;padding:0 24px;font-size:1.08rem;font-weight:800;text-decoration:none;display:inline-flex}.legacy .btn:hover{filter:brightness(1.08)}.legacy .btn-block{width:100%}.legacy .btn-ghost{font:inherit;border:1.5px dashed var(--input-border);color:var(--accent);cursor:pointer;background:0 0;border-radius:12px;min-height:44px;padding:0 14px}.legacy .icon-btn{border:1px solid var(--border);background:var(--surface);min-height:52px;color:var(--text-2);cursor:pointer;border-radius:12px;font-size:1.2rem}.legacy .result{box-shadow:none;background:0 0;border:0;margin-top:22px;padding:0;display:none;overflow:visible}.legacy .result.show{display:block}.legacy .result h3{margin:24px 0 8px;font-size:1.05rem}.legacy .result-main{background:var(--accent-weak);border:1px solid color-mix(in srgb, var(--accent) 35%, var(--border));text-align:center;border-radius:16px;padding:22px 18px}.legacy .result-main .label{color:var(--text-2);font-size:.95rem;font-weight:700}.legacy .result-main .value{letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:var(--text);margin:4px 0;font-size:2.2rem;font-weight:800;line-height:1.25}.legacy .result-main .sub{color:var(--text-2);font-size:.95rem;font-weight:600}.legacy table{border-collapse:collapse;width:100%;margin-top:14px;font-size:.97rem}.legacy th,.legacy td{text-align:right;font-variant-numeric:tabular-nums;padding:11px 10px}.legacy th:first-child,.legacy td:first-child{text-align:left}.legacy th{color:var(--text-2);background:var(--surface-2);font-size:.88rem;font-weight:700}.legacy td{border-bottom:1px solid var(--border)}.legacy td:first-child{color:var(--text-2)}.legacy td:last-child{font-weight:700}.legacy tr:last-child td{border-bottom:0}.legacy tr.total td{color:var(--accent);border-top:2px solid var(--text);font-weight:800}.legacy tr.total td:first-child{color:var(--text)}.legacy .table-scroll{border:1px solid var(--border);border-radius:12px;max-height:440px;margin-top:14px;overflow:auto}.legacy .table-scroll table{min-width:0;margin:0}.legacy .table-scroll th{position:sticky;top:0}.legacy .notice{color:var(--text-2);background:var(--warn-bg);margin:16px 0 0;font-size:.92rem;font-weight:500}.legacy .notice:before{content:"ⓘ";color:var(--warn-text);font-weight:800}.legacy .content table{font-size:.95rem}.legacy .content h2{scroll-margin-top:calc(var(--header-h) + 16px)}.legacy .formula{white-space:normal;font-family:var(--mono);margin:10px 0 14px}.legacy .formula small{color:var(--text-3);font-family:var(--font);margin-top:4px;display:block}.legacy .example{background:var(--tone-green-weak);border-radius:14px;margin:14px 0;padding:16px 18px}.legacy .example-title{color:var(--tone-green);margin-bottom:6px;font-size:.9rem;font-weight:800}.legacy .example p{margin:0 0 8px}.legacy .example p:last-child{margin-bottom:0}.legacy .toc{background:var(--surface-2);border:1px solid var(--border);border-radius:14px;margin:8px 0 24px;padding:16px 20px}.legacy .toc strong{margin-bottom:6px;display:block}.legacy .toc ol{margin:0;padding-left:22px}.legacy .toc li{margin-bottom:4px}.legacy .cta{background:var(--accent-weak);border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 16px;margin:24px 0;padding:16px 20px;display:flex}.legacy .cta p{color:var(--text);margin:0;font-weight:700}.legacy .cta a{background:var(--accent-btn);min-height:44px;color:var(--on-accent);border-radius:12px;align-items:center;padding:0 18px;font-weight:700;text-decoration:none;display:inline-flex}.legacy .related{flex-wrap:wrap;gap:8px;padding:0;list-style:none;display:flex}.legacy .related a{border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--text);border-radius:12px;align-items:center;padding:8px 16px;font-weight:700;text-decoration:none;display:inline-flex}.legacy .related a:hover{border-color:var(--accent);color:var(--accent)}.legacy details{background:var(--surface-2);border-radius:12px;margin-bottom:8px;padding:0 16px}.legacy summary{cursor:pointer;align-items:center;gap:10px;min-height:48px;padding:12px 0;font-weight:700;list-style:none;display:flex}.legacy summary::-webkit-details-marker{display:none}.legacy summary:before{content:"Q";color:var(--accent);font-weight:800}.legacy summary:after{content:"+";color:var(--text-3);margin-left:auto;font-size:1.4rem;line-height:1;transition:transform .2s}.legacy details[open] summary:after{transform:rotate(45deg)}.legacy details p{margin:0 0 14px}.legacy .guide-list{gap:12px;display:grid}.legacy .guide-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);box-shadow:var(--shadow);padding:18px 20px;text-decoration:none;transition:transform .15s,border-color .15s,box-shadow .15s;display:block}.legacy .guide-card:hover{border-color:var(--tone-fill);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.legacy .guide-card .tag{color:var(--tone-fill);background:var(--tone-weak,var(--accent-weak));border-radius:6px;margin-bottom:6px;padding:1px 8px;font-size:.78rem;font-weight:700;display:inline-block}.legacy .guide-card strong{font-size:1.1rem;display:block}.legacy .guide-card p{color:var(--text-3);margin:4px 0 0;font-size:.95rem}@media (width>=640px){.legacy .form-grid,.legacy .guide-list{grid-template-columns:1fr 1fr}}