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:root{--bg:#f3f5f1;--surface:#fdfdfb;--fg:#1d2b26;--muted:#5b6a63;--border:#dde4de;--brand:#14463a;--accent:#1b6b57;--accent-hover:#145443;--accent-soft:#e8f2ee;--info-bg:#eef3f6;--info-border:#4a7896;--success-bg:#eef6ea;--success-border:#5f9a42;--warn-bg:#fcf5e1;--warn-border:#d4891c;--danger:#a8322a;--hero-bg:#155443;--hero-fg:#fff;--hero-sub:#dcebe4;--yellow:#e9c46a;--tone-mukiten:#deeee3;--tone-yatoidome:#dde8ec;--tone-giso:#f5eede;--tone-douitsu:#e6e4f1;--stripe-mukiten:#4f8f6a;--stripe-yatoidome:#4a7896;--stripe-giso:#c9a14a;--stripe-douitsu:#7a74b0;--radius:16px;--shadow:0 1px 2px #1018280a, 0 1px 3px #10182814;--shadow-md:0 6px 18px #1018281a;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-geist-sans), -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Noto Sans JP", Meiryo, 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var(--brand);margin-top:3rem;padding-left:12px;font-size:clamp(1.25rem,2.4vw,1.4rem);line-height:1.5}h3{color:var(--fg);margin-top:1.5rem;margin-bottom:.4rem;font-size:clamp(1.05rem,2vw,1.1rem);font-weight:700}p{margin:.9rem 0}main ul,main ol{padding-left:1.4rem}main li+li{margin-top:4px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}main p:not(.back-link):not(.more-link) a,main li a{text-underline-offset:3px;text-decoration:underline}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.site-header :focus-visible,.home-hero :focus-visible,.site-footer :focus-visible{outline-color:var(--yellow)}.back-link{margin:0 0 .5rem;font-size:.88rem}.back-link a{color:var(--muted)}.lead{color:var(--muted);font-size:1.05rem}@media (max-width:620px){.lead{font-size:1rem}}.title-band{background:var(--tone);border-bottom:4px solid var(--stripe);border-radius:var(--radius) var(--radius) 0 0;align-items:flex-start;gap:16px;margin:-48px -56px 28px;padding:36px 56px 22px;display:flex}.title-band-text{flex:1;min-width:0}.title-band-text>:last-child{margin-bottom:0}.title-band-img{-webkit-mask-composite:source-in;flex-shrink:0;width:120px;height:auto;-webkit-mask-image:linear-gradient(90deg,#0000,#000 15% 85%,#0000),linear-gradient(#0000,#000 15% 85%,#0000);mask-image:linear-gradient(90deg,#0000,#000 15% 85%,#0000),linear-gradient(#0000,#000 15% 85%,#0000);-webkit-mask-composite:source-in;mask-composite:intersect}@media (max-width:620px){.title-band{margin:-24px -18px 20px;padding:22px 18px 16px;display:block;position:relative}.title-band-img{width:72px;position:absolute;top:18px;right:14px}.title-band h1{padding-right:76px}}.card{border:1px solid var(--border);background:var(--surface);border-radius:10px;margin-bottom:14px;padding:18px 20px;transition:box-shadow .15s,border-color .15s,transform 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16px;font-size:clamp(1.75rem,3.4vw,2.6rem);font-weight:800;line-height:1.35}.hero-desc{color:var(--hero-sub);margin:0 0 28px;font-size:1.05rem}.hero-buttons{flex-wrap:wrap;gap:12px;display:flex}.hero-btn{border:2px solid #0000;border-radius:10px;justify-content:center;align-items:center;min-height:52px;padding:0 28px;font-size:1rem;font-weight:700;text-decoration:none;transition:background .15s,border-color .15s;display:inline-flex}.hero-btn:hover{text-decoration:none}.hero-btn-primary{background:var(--yellow);color:var(--fg)}.hero-btn-primary:hover{background:color-mix(in srgb, var(--yellow) 82%, white)}.hero-btn-secondary{border-color:var(--hero-fg);color:var(--hero-fg);background:0 0}.hero-btn-secondary:hover{background:color-mix(in srgb, var(--hero-fg) 14%, transparent)}.home-hero-art{min-width:0}.hero-img{-webkit-mask-composite:source-in;width:100%;height:auto;display:block;-webkit-mask-image:linear-gradient(90deg,#0000,#000 8% 92%,#0000),linear-gradient(#0000,#000 8% 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li+li{margin-top:0}.feature-item{color:var(--fg);align-items:center;gap:10px;font-size:.88rem;font-weight:600;line-height:1.5;display:flex}.feature-icon{background:var(--accent-soft);width:40px;height:40px;color:var(--accent);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}@media (max-width:900px){.feature-strip{grid-template-columns:repeat(2,1fr)}}main.home-main{width:auto;max-width:1040px;box-shadow:none;background:0 0;border-radius:0;margin:0 auto;padding:0}.home-section{padding:56px 20px}.home-section+.home-section{padding-top:0}.home-section h2{border-left:0;margin:0 0 16px;padding-left:0;scroll-margin-top:16px;font-size:clamp(1.5rem,3vw,2rem)}@media (max-width:620px){.home-section{padding:40px 16px}}.tool-grid{grid-template-columns:repeat(2,1fr);gap:24px;margin-top:24px;display:grid}@media (max-width:620px){.tool-grid{grid-template-columns:1fr}}.tone-mukiten{--tone:var(--tone-mukiten);--stripe:var(--stripe-mukiten)}.tone-yatoidome{--tone:var(--tone-yatoidome);--stripe:var(--stripe-yatoidome)}.tone-giso{--tone:var(--tone-giso);--stripe:var(--stripe-giso)}.tone-douitsu{--tone:var(--tone-douitsu);--stripe:var(--stripe-douitsu)}.tool-card{border-top:5px solid var(--stripe);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);color:inherit;flex-direction:column;text-decoration:none;transition:box-shadow .15s,transform .15s;display:flex;overflow:hidden}.tool-card:hover{box-shadow:var(--shadow-md);text-decoration:none;transform:translateY(-2px)}.tool-card-media{background:var(--tone);justify-content:center;align-items:center;height:200px;display:flex}.tool-card-img{-webkit-mask-composite:source-in;width:180px;height:auto;-webkit-mask-image:linear-gradient(90deg,#0000,#000 15% 85%,#0000),linear-gradient(#0000,#000 15% 85%,#0000);mask-image:linear-gradient(90deg,#0000,#000 15% 85%,#0000),linear-gradient(#0000,#000 15% 85%,#0000);-webkit-mask-composite:source-in;mask-composite:intersect}@media (max-width:620px){.tool-card-media{height:160px}.tool-card-img{width:150px}}.tool-card-body{flex:1;padding:20px 22px 0}.tool-card-title{color:var(--brand);border:none;margin:8px 0 6px;padding:0;font-size:1.1rem;line-height:1.5}.tool-card-desc{color:var(--muted);margin:0;font-size:.9rem;line-height:1.7}.tool-card-cta{color:var(--accent);padding:14px 22px 20px;font-size:.9rem;font-weight:700;display:block}.tool-card:hover .tool-card-cta{color:var(--accent-hover)}.article-grid{grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px;display:grid}@media (max-width:620px){.article-grid{grid-template-columns:1fr}}.article-card{border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);color:inherit;gap:16px;padding:18px 20px;text-decoration:none;transition:box-shadow .15s,transform .15s;display:flex}.article-card:hover{box-shadow:var(--shadow-md);text-decoration:none;transform:translateY(-2px)}.article-card-icon{background:var(--accent-soft);width:44px;height:44px;color:var(--brand);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.article-card-body{flex:1;min-width:0}.article-card-title{color:var(--brand);margin:0 0 4px;font-size:1.02rem;line-height:1.5}.article-card-desc{color:var(--muted);margin:0;font-size:.9rem;line-height:1.7}.article-card-date{color:var(--muted);margin:4px 0 0;font-size:.8rem}.article-card-cta{color:var(--accent);margin-top:8px;font-size:.9rem;font-weight:700;display:block}.article-card:hover .article-card-cta{color:var(--accent-hover)}.more-link{text-align:right;margin:20px 0 0;font-weight:700}@media (prefers-reduced-motion:reduce){.tool-card,.article-card,button,.hero-btn{transition:none}.tool-card:hover,.article-card:hover{transform:none}}.notice{color:var(--muted);border:1px solid 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var(--border);background:#f8faf7;border-radius:12px;margin-bottom:10px;padding:16px}.contract-row-fields{flex-wrap:wrap;align-items:flex-end;gap:14px;display:flex}.contract-row-fields label{color:var(--muted);flex-direction:column;gap:6px;font-size:.82rem;font-weight:600;display:flex}input[type=date]{border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--fg);border-radius:8px;padding:9px 10px;font-family:inherit;font-size:1rem}.checkbox-label{color:var(--fg);align-items:center;gap:9px;margin:12px 0;font-size:.95rem;font-weight:500;display:flex}.checkbox-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent)}.question-block{border:1px solid var(--border);background:#f8faf7;border-radius:12px;margin-bottom:14px;padding:16px}.question-block h3{margin-top:0}.radio-option{color:var(--fg);cursor:pointer;border-radius:8px;align-items:flex-start;gap:9px;margin:4px 0;padding:10px 8px;font-size:.95rem;display:flex}.radio-option:hover{background:var(--accent-soft)}.radio-option:has(input:checked){background:var(--accent-soft)}.radio-option input[type=radio]{width:18px;height:18px;accent-color:var(--accent);flex-shrink:0;margin-top:2px}button{cursor:pointer;border:1px solid #0000;border-radius:10px;min-height:44px;padding:10px 18px;font-family:inherit;font-size:.95rem;font-weight:600;transition:background .15s,border-color .15s,color .15s}.btn-add{background:var(--accent);color:#fff;min-height:48px;margin-top:4px;font-size:1rem}.btn-add:hover:not(:disabled){background:var(--accent-hover)}.btn-add:disabled{cursor:not-allowed;background:#bfcdc5}.btn-ghost{color:var(--muted);border-color:var(--border);background:0 0;padding:8px 13px;font-size:.85rem}.btn-ghost:hover{color:var(--danger);background:#fbf1ef;border-color:#f0c6c0}.field-error{color:var(--danger);margin:8px 0 0;font-size:.85rem}.result-callout{border:1px solid var(--border);border-left-width:5px;border-radius:12px;margin:8px 0 14px;padding:20px 22px}.result-callout p{margin:.6rem 0}.result-callout p:first-child{margin-top:0;font-size:1.1rem;font-weight:700}.result-callout p:last-child{margin-bottom:0}.result-A{background:var(--info-bg);border-color:var(--info-border)}.result-B{background:var(--success-bg);border-color:var(--success-border)}.result-C{background:var(--warn-bg);border-color:var(--warn-border)}.result-neutral{background:var(--bg);border-color:var(--muted)}.result-danger{border-color:var(--danger);background:#fbf1ef}.result-danger strong{color:var(--danger)}.article-table-wrap{overflow-x:auto}main a{overflow-wrap:anywhere}table{border-collapse:collapse;width:100%;margin:10px 0;font-size:.88rem}th,td{border:1px solid var(--border);text-align:left;vertical-align:top;padding:8px 10px}th{background:var(--accent-soft);color:var(--brand);font-weight:700}details{border:1px solid 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