:root{--tool-line:var(--line,color-mix(in srgb, var(--ink) 16%, transparent));--tool-mono:var(--mono,ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace)}.tool{border:1px solid var(--tool-line);background:var(--panel,transparent);margin:2rem 0 2.4rem;padding:1.2rem 1.2rem 1.4rem}.tool-head h2{margin:0 0 .4rem;font-size:clamp(1.05rem,2vw,1.3rem)}.tool-head p{color:var(--muted);margin:0 0 1rem;font-size:.86rem;line-height:1.7}.tool-calc{border-top:1px solid var(--tool-line);grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:1rem 1.6rem;padding:.9rem 0 1.1rem;display:grid}.tool-fields{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:.8rem;display:grid}.tool-field{color:var(--muted);gap:.3rem;font-size:.78rem;display:grid}.tool-input{align-items:baseline;gap:.35rem;display:flex}.tool-input input{border:1px solid var(--tool-line);width:100%;min-width:0;color:var(--ink);font:inherit;font-family:var(--tool-mono);font-variant-numeric:tabular-nums;background:0 0;padding:.4rem .5rem;font-size:.95rem}.tool-input input:focus{outline:2px solid var(--accent);outline-offset:1px}.tool-input em{color:var(--muted);font-size:.75rem;font-style:normal}.tool-out{justify-items:end;line-height:1;display:grid}.tool-out-v{font-family:var(--tool-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-size:clamp(2rem,4.5vw,2.8rem)}.tool-out-u{color:var(--muted);margin-top:.3rem;font-size:.75rem}.tool-outlabel{color:var(--muted);text-align:right;grid-column:2;margin:.35rem 0 0;font-size:.72rem}.tool-table{border-collapse:collapse;width:100%;font-size:.88rem}.tool-table caption{letter-spacing:.1em;color:var(--muted);text-align:left;padding-bottom:.5rem;font-size:.72rem}.tool-table th{border-bottom:1px solid var(--ink);letter-spacing:.06em;color:var(--muted);text-align:left;padding:.45rem .6rem .45rem 0;font-size:.72rem;font-weight:500}.tool-table td{border-bottom:1px solid var(--tool-line);vertical-align:top;padding:.6rem .6rem .6rem 0}.tool-table .tool-num,.tool-num{font-family:var(--tool-mono);font-variant-numeric:tabular-nums;text-align:right}.tool-out-cell{font-family:var(--tool-mono);font-variant-numeric:tabular-nums;font-weight:600}.tool-bar{border-top:1px solid var(--tool-line);border-bottom:1px solid var(--tool-line);justify-content:space-between;align-items:center;gap:1rem;padding:.8rem 0;display:flex}.tool-search{color:var(--muted);align-items:center;gap:.6rem;font-size:.78rem;display:flex}.tool-search input{border:1px solid var(--tool-line);width:min(52vw,240px);color:var(--ink);font:inherit;background:0 0;padding:.4rem .55rem}.tool-search input:focus{outline:2px solid var(--accent);outline-offset:1px}.tool-count{font-family:var(--tool-mono);color:var(--muted);margin:0;font-size:.78rem}@media (width<=700px){.tool-calc{grid-template-columns:1fr}.tool-out{justify-items:start}.tool-outlabel{text-align:left;grid-column:1}.tool-table [data-hide=mobile]{display:none}.tool-bar{flex-wrap:wrap}.tool-search input{width:100%}}.eng-kicker,.eng-toc-h,.eng-st-no,.eng-b-h,.eng-hc-meta{font:600 .7rem/1.4 var(--mono,ui-monospace, SFMono-Regular, Menlo, monospace);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0}.eng-lead{color:var(--muted);max-width:46ch;margin:0;font-size:clamp(1rem,1.5vw,1.08rem);line-height:1.95}.eng-hero-split{padding:clamp(2.5rem,6vw,4.5rem) 0 clamp(1.5rem,3vw,2.2rem)}.eng-hs-grid{grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);align-items:start;gap:clamp(1.6rem,4vw,3.4rem);display:grid}.eng-hs-main{align-content:start;gap:1.1rem;display:grid}.eng-hs-main h1{letter-spacing:-.02em;margin:0;font-size:clamp(1.9rem,4.4vw,3.15rem);line-height:1.18}.eng-hs-facts{border-top:1px solid var(--line,#00000029);gap:0;margin:0;display:grid}.eng-hs-facts>div{border-bottom:1px solid var(--line,#00000029);gap:.15rem;padding:.7rem 0;display:grid}.eng-hs-facts dt{letter-spacing:.08em;color:var(--muted);font-size:.72rem}.eng-hs-facts dd{margin:0;font-size:.95rem;font-weight:600;line-height:1.5}.eng-hero-center{text-align:center;padding:clamp(3rem,8vw,6rem) 0 clamp(2rem,4vw,3rem)}.eng-hc-inner{justify-items:center;gap:1.1rem;display:grid}.eng-hc-inner h1{letter-spacing:-.02em;max-width:22ch;margin:0;font-size:clamp(1.85rem,4.6vw,3.2rem);line-height:1.16}.eng-hc-inner .eng-lead{max-width:40ch}.eng-hc-meta{color:var(--muted)}.eng-hero-band{background:var(--hero-bg,var(--ink));color:var(--hero-ink,var(--ground));margin-bottom:clamp(1.6rem,3vw,2.4rem);padding:clamp(2.6rem,6vw,4.6rem) 0}.eng-hb-inner{gap:1.1rem;display:grid}.eng-hero-band .eng-kicker{color:color-mix(in srgb, currentColor 62%, transparent)}.eng-hero-band h1{letter-spacing:-.02em;max-width:24ch;margin:0;font-size:clamp(1.9rem,4.6vw,3.3rem);line-height:1.14}.eng-hero-band .eng-lead{color:color-mix(in srgb, currentColor 76%, transparent)}.eng-hb-facts{flex-wrap:wrap;gap:.4rem 1.6rem;margin:.4rem 0 0;padding:0;font-size:.86rem;list-style:none;display:flex}.eng-hb-facts li{align-items:baseline;gap:.45rem;min-width:0;display:flex}.eng-hb-facts span{color:color-mix(in srgb, currentColor 58%, transparent);letter-spacing:.08em;white-space:nowrap;font-size:.72rem}.eng-flow{grid-template-columns:minmax(0,1fr);gap:clamp(1.6rem,4vw,3rem);padding-bottom:clamp(1.6rem,4vw,2.6rem);display:grid}.eng-flow-toc{grid-template-columns:minmax(0,1fr) 15rem}.eng-flow-main{align-content:start;gap:clamp(1.4rem,3vw,2.2rem);display:grid}.eng-toc{align-self:start;gap:.5rem;display:grid;position:sticky;top:5.5rem}.eng-toc ol{gap:.4rem;margin:0;padding:0;font-size:.86rem;list-style:none;display:grid}.eng-toc a{color:var(--muted);border-bottom:1px solid #0000;text-decoration:none}.eng-toc a:hover{color:var(--accent);border-bottom-color:var(--accent)}.eng-toc-inline{border-top:1px solid var(--line,#00000029);border-bottom:1px solid var(--line,#00000029);flex-wrap:wrap;gap:.4rem 1.1rem;padding:.9rem 0;font-size:.82rem;display:flex}.eng-toc-inline a{color:var(--muted);text-decoration:none}.eng-toc-inline a:hover{color:var(--accent)}.eng-b{margin:0}.eng-b-h{justify-content:space-between;gap:1rem;margin-bottom:.7rem;display:flex}.eng-idx-grid>.eng-b-h,.eng-idx-cards>.eng-b-h,.eng-board>.eng-b-h{grid-column:1/-1;margin-bottom:.2rem}.eng-kpi-row{border-top:1px solid var(--line,#00000029);grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));display:grid}.eng-kpi{border-bottom:1px solid var(--line,#00000029);border-right:1px solid var(--line,#00000029);align-content:start;gap:.3rem;padding:.9rem 1rem 1rem 0;display:grid}.eng-kpi:last-child{border-right:0}.eng-kpi-k{letter-spacing:.06em;color:var(--muted);font-size:.7rem}.eng-kpi b{overflow-wrap:anywhere;font-size:clamp(.95rem,1.5vw,1.15rem);line-height:1.45}.eng-kpi-stack{gap:0;margin:0;display:grid}.eng-kpi-stack>div{border-bottom:1px solid var(--line,#00000029);grid-template-columns:8rem minmax(0,1fr);gap:1rem;padding:.55rem 0;display:grid}.eng-kpi-stack dt{letter-spacing:.06em;color:var(--muted);font-size:.72rem}.eng-kpi-stack dd{margin:0;font-size:.92rem}.eng-idx-table ol{border-top:1px solid var(--line,#00000029);margin:0;padding:0;list-style:none}.eng-idx-table li a{border-bottom:1px solid var(--line,#00000029);color:var(--ink);grid-template-columns:3rem minmax(0,14rem) minmax(0,1fr) 4.5rem;align-items:baseline;gap:1rem;padding:.75rem 0;text-decoration:none;display:grid}.eng-it-no{font-family:var(--mono,monospace);color:var(--accent-ink,var(--accent));font-size:.72rem}.eng-it-title{font-weight:600}.eng-it-lead{color:var(--muted);font-size:.86rem;line-height:1.7}.eng-it-n{font-family:var(--mono,monospace);color:var(--muted);text-align:right;font-size:.72rem}.eng-idx-grid{border-top:1px solid var(--line,#00000029);grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:0;display:grid}.eng-idx-grid a{border-bottom:1px solid var(--line,#00000029);border-right:1px solid var(--line,#00000029);color:var(--ink);gap:.35rem;padding:1rem 1.2rem 1.2rem 0;text-decoration:none;display:grid}.eng-idx-grid a:nth-child(2n){border-right:0;padding-left:1.2rem}.eng-ig-no{font-family:var(--mono,monospace);color:var(--accent-ink,var(--accent));font-size:.7rem}.eng-idx-grid b{font-size:1rem}.eng-idx-grid span:last-child{color:var(--muted);font-size:.85rem;line-height:1.7}.eng-idx-list{margin:0;padding:0;list-style:none}.eng-idx-list li{border-bottom:1px solid var(--line,#00000029)}.eng-idx-list a{color:var(--ink);align-items:baseline;gap:.6rem;padding:.7rem 0;font-size:.94rem;text-decoration:none;display:flex}.eng-il-dots{border-bottom:1px dotted var(--line,#0000004d);flex:1;transform:translateY(-.2em)}.eng-il-n{font-family:var(--mono,monospace);color:var(--muted);font-size:.72rem}.eng-idx-cards{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:1rem;display:grid}.eng-idx-cards a{background:var(--panel,#0000000a);border-radius:var(--eng-radius,0);color:var(--ink);gap:.4rem;padding:1.1rem;text-decoration:none;display:grid}.eng-ic-no{font-family:var(--mono,monospace);color:var(--accent-ink,var(--accent));font-size:.7rem}.eng-idx-cards b{font-size:1rem}.eng-idx-cards span:last-child{color:var(--muted);font-size:.85rem;line-height:1.7}.eng-steps{counter-reset:st;gap:0;margin:0;padding:0;list-style:none;display:grid}.eng-steps li{border-top:1px solid var(--line,#00000029);grid-template-columns:6rem minmax(0,1fr) auto;gap:.35rem 1.2rem;padding:1rem 0;display:grid}.eng-steps b{grid-column:2;font-size:1rem}.eng-steps span{color:var(--muted);grid-column:2;font-size:.86rem;line-height:1.7}.eng-steps a{color:var(--accent);grid-area:1/3/span 3;align-self:center;font-size:.8rem;text-decoration:none}.eng-facts-dl{grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:0 2rem;margin:0;display:grid}.eng-facts-dl>div{border-bottom:1px solid var(--line,#00000029);padding:.6rem 0}.eng-facts-dl dt{letter-spacing:.06em;color:var(--muted);font-size:.72rem}.eng-facts-dl dd{margin:.15rem 0 0;font-size:.92rem}.eng-facts-chips{flex-wrap:wrap;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.eng-facts-chips li{border:1px solid var(--line,#00000029);border-radius:var(--eng-radius,0);align-items:baseline;gap:.45rem;padding:.4rem .7rem;font-size:.84rem;display:flex}.eng-facts-chips span{letter-spacing:.06em;color:var(--muted);font-size:.68rem}.eng-board{border:1px solid var(--ink);grid-template-columns:repeat(auto-fit,minmax(13rem,1fr));gap:0;display:grid}.eng-board a{border-right:1px solid var(--line,#00000029);border-bottom:1px solid var(--line,#00000029);color:var(--ink);gap:.35rem;padding:1rem 1.1rem 1.2rem;text-decoration:none;display:grid}.eng-bd-no{font-family:var(--mono,monospace);color:var(--accent-ink,var(--accent));font-size:.7rem}.eng-board b{font-size:.98rem}.eng-board span:last-child{color:var(--muted);font-size:.84rem;line-height:1.7}.eng-quote{border-left:3px solid var(--accent);margin:0;padding:1.4rem 0 1.4rem 1.4rem}.eng-quote p{margin:0;font-size:clamp(1.05rem,2vw,1.3rem);line-height:1.85}.eng-sec{border-top:1px solid var(--line,#00000029);padding:clamp(1.4rem,3vw,2.2rem) 0}.eng-sec h2{align-items:baseline;gap:.8rem;margin:0 0 .9rem;font-size:clamp(1.1rem,2vw,1.35rem);display:flex}.eng-sec-no{font-family:var(--mono,monospace);color:var(--accent-ink,var(--accent));letter-spacing:.08em;font-size:.72rem}.eng-sec-body{max-width:72ch}.eng-art{padding-bottom:clamp(2.5rem,6vw,4.5rem)}.eng-art-head{gap:.9rem;padding:clamp(1.6rem,4vw,2.8rem) 0 clamp(1.2rem,3vw,1.8rem);display:grid}.eng-art-head h1{letter-spacing:-.02em;margin:0;font-size:clamp(1.7rem,3.8vw,2.6rem);line-height:1.2}.eng-art-body{max-width:74ch}.eng-art-rail:has(>.eng-toc){grid-template-columns:15rem minmax(0,1fr);align-items:start;gap:clamp(1.6rem,4vw,3rem);display:grid}.eng-art-rail .eng-art-body{max-width:none}.eng-art-numbered .prose section{grid-template-columns:4rem minmax(0,1fr);gap:1rem;display:grid}.eng-art-numbered .prose h2,.eng-art-numbered .prose section>:not(h2){grid-column:2}.eng-cards{grid-template-columns:minmax(0,1fr);gap:1rem;display:grid}.eng-cards>*,.eng-flow-main>*{min-width:0}.eng-cards section{border:1px solid var(--line,#00000029);border-radius:var(--eng-radius,0);padding:1.2rem 1.3rem}.eng-cards h2{margin-top:0}.eng-next{border-top:1px solid var(--line,#00000029);margin-top:clamp(1.6rem,4vw,2.4rem);padding-top:1rem}.eng-next ul{gap:.4rem;margin:.6rem 0 0;padding:0;list-style:none;display:grid}.eng-next a{color:var(--muted);font-size:.9rem;text-decoration:none}.eng-next a:hover{color:var(--accent)}@media (width<=900px){.eng-hs-grid,.eng-flow-toc{grid-template-columns:minmax(0,1fr)}.eng-toc{order:2;position:static}.eng-art-rail,.eng-art-rail:has(>.eng-toc){grid-template-columns:minmax(0,1fr)}.eng-art-rail .eng-toc{order:2}.eng-idx-table li a{grid-template-columns:2.2rem minmax(0,1fr)}.eng-it-lead,.eng-it-n{grid-column:2}.eng-it-n{text-align:left}.eng-kpi-stack>div{grid-template-columns:minmax(0,1fr);gap:.15rem}.eng-steps li{grid-template-columns:5rem minmax(0,1fr)}.eng-steps a{grid-area:auto/2}.eng-art-numbered .prose section{grid-template-columns:minmax(0,1fr)}.eng-art-numbered .prose h2,.eng-art-numbered .prose section>:not(h2){grid-column:1}}[hidden]{display:none!important}h1,h2,h3{word-break:keep-all;line-break:strict}.footer-name{font-size:1.05rem;line-height:1.5}.eng-hero-band .eng-lead,.eng-hero-center .eng-lead,.eng-hero-split .eng-lead{max-width:44rem}.eng-art .prose .tablewrap{max-width:min(100%,96rem)}td,th{word-break:keep-all}.tool-table{display:block;overflow-x:auto}@media (width<=620px){.masthead-inner{flex-wrap:wrap;row-gap:.5rem}}:root{--ground:#0b0b0f;--ground-2:#0e0e14;--panel:#15151d;--panel-2:#1b1b25;--ink:#f2f2f7;--muted:#a9a9bd;--accent:#ff442e;--accent-ink:#ff442e;--accent-fill:#ff442e;--alt:#09ed97;--alt-ink:#09ed97;--line:#272733;--line-strong:#3c3c4d;--on-accent:#0b0b0f;--mono:ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, "Noto Sans Mono", monospace;--eng-radius:0px;--maxw:74rem;--font:"Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, -apple-system, "Segoe UI", sans-serif}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;background:var(--ground)}body{background:var(--ground);color:var(--ink);font-family:var(--font);font-variant-numeric:tabular-nums;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;margin:0;font-size:1.0625rem;line-height:1.85}::selection{background:var(--accent);color:var(--on-accent)}a{color:inherit}:focus-visible{outline:2px solid var(--alt);outline-offset:3px}.wrap{width:min(100% - 2.5rem, var(--maxw));margin-inline:auto}.skip{position:absolute;left:-9999px}.skip:focus{z-index:30;background:var(--accent-fill);color:var(--on-accent);padding:.5rem .9rem;font-weight:700;top:1rem;left:1rem}.masthead{z-index:20;background:var(--ground);border-bottom:1px solid var(--line);box-shadow:0 1px 0 0 color-mix(in srgb, var(--accent) 32%, transparent);position:sticky;top:0}.masthead-inner{align-items:center;gap:1.5rem;min-height:4.1rem;display:flex}.wordmark{align-items:center;gap:.55rem;min-width:0;margin-right:auto;text-decoration:none;display:inline-flex}.wordmark-mark{background:var(--accent-fill);color:var(--on-accent);font-family:var(--mono);letter-spacing:.02em;clip-path:polygon(0 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%);padding:.26rem .45rem;font-size:.78rem;font-weight:700;display:inline-block}.wordmark-text{letter-spacing:.01em;color:var(--ink);white-space:nowrap;text-overflow:ellipsis;font-size:.88rem;font-weight:700;overflow:hidden}.nav{font-family:var(--mono);letter-spacing:.09em;text-transform:uppercase;gap:1.15rem;font-size:.74rem;font-weight:600;display:flex}.nav a{color:var(--muted);border-bottom:2px solid #0000;padding-block:.35rem;text-decoration:none}.nav a:hover{color:var(--ink);border-bottom-color:var(--line-strong)}.nav a[aria-current=page]{color:var(--accent);border-bottom-color:var(--accent)}.lang{flex:none;position:relative}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.hero{padding-block:clamp(3.5rem,9vw,7.5rem)}.hero h1{letter-spacing:-.035em;max-width:26ch;margin:0;font-size:clamp(2rem,6.4vw,4.9rem);font-weight:800;line-height:1.04}.hero-lead{max-width:44ch;color:var(--muted);margin:1.75rem 0 0;font-size:clamp(1.0625rem,1.5vw,1.25rem)}.play{background:var(--accent-fill);color:var(--on-accent);font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);align-items:center;gap:.7rem;margin-top:2.5rem;padding:.95rem 1.6rem;font-size:.9rem;font-weight:700;text-decoration:none;display:inline-flex}.play:hover{background:var(--alt)}.band{padding-block:clamp(2.75rem,6vw,5rem)}.band-title{letter-spacing:-.02em;margin:0 0 2rem;font-size:clamp(1.375rem,2.2vw,1.75rem);font-weight:800}.eng-hero-center{border-bottom:1px solid var(--line)}.eng-hc-inner h1{text-shadow:0 0 30px color-mix(in srgb, var(--accent) 32%, transparent)}.eng-kicker,.eng-sec-no,.eng-it-no,.eng-bd-no,.eng-ic-no,.eng-ig-no{color:var(--accent-ink)}.eng-facts-chips li{background:var(--ground-2);border-color:var(--line)}.eng-board{border:1px solid var(--line-strong)}.eng-board a:hover{background:var(--panel)}.eng-steps li{border-top-color:var(--line)}.eng-steps a{color:var(--accent);font-family:var(--mono);letter-spacing:.06em}.eng-st-no{color:var(--alt-ink)}.eng-idx-table li a:hover,.eng-idx-list a:hover{color:var(--accent)}.eng-quote{border-left-color:var(--accent);background:var(--ground-2)}.eng-idx-cards a,.eng-facts-chips li,.tool,.linklist a,.checklist,.tablewrap{clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%)}.eng-idx-cards a{background:var(--panel);border:1px solid var(--line);transition:border-color .15s,background-color .15s,transform .15s}.eng-idx-cards a:hover{border-color:var(--accent);background:var(--panel-2);transform:translateY(-2px)}.pagelinks{margin:0;padding:0;list-style:none}.pagelinks a{background:var(--panel);border:1px solid var(--line);padding:1.6rem 1.5rem;text-decoration:none;display:block}.pagelinks a:hover{background:var(--accent-fill);border-color:var(--accent);color:var(--on-accent)}.pagelink-title{font-size:clamp(1.25rem,2.2vw,1.6rem);font-weight:800;display:block}.pagelink-lead{color:var(--muted);margin-top:.35rem;font-size:.9375rem;display:block}.pagelinks a:hover .pagelink-lead{color:var(--on-accent)}.crumbs{font-family:var(--mono);letter-spacing:.06em;color:var(--muted);flex-wrap:wrap;gap:.5rem;padding-top:1.1rem;font-size:.72rem;display:flex}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--accent)}.eng-art-head h1{letter-spacing:-.03em;font-size:clamp(1.85rem,4vw,2.9rem)}.page-meta{font-family:var(--mono);letter-spacing:.05em;color:var(--muted);margin:.9rem 0 0;font-size:.74rem}.prose{max-width:70ch}.prose h2{letter-spacing:-.02em;border-left:3px solid var(--accent);margin:clamp(2.5rem,5vw,3.5rem) 0 1rem;padding-left:.85rem;font-size:clamp(1.3rem,2.3vw,1.68rem);font-weight:800;line-height:1.35}.prose>section:first-child>h2{margin-top:0}.prose p{margin:0 0 1.1rem}.prose p:last-child{margin-bottom:0}.prose strong{color:var(--alt);font-weight:700}.bullets{margin:0 0 1.25rem;padding:0;list-style:none}.bullets li{margin-bottom:.55rem;padding-left:1.3rem;position:relative}.bullets li:before{content:"";background:var(--accent);width:.5rem;height:.5rem;position:absolute;top:.62em;left:0;transform:skew(-18deg)}.kv{border-top:1px solid var(--line);margin:0 0 1.25rem}.kv-row{border-bottom:1px solid var(--line);grid-template-columns:minmax(8rem,15rem) minmax(0,1fr);gap:.35rem 1.5rem;padding:.8rem .9rem;display:grid}.kv-row:nth-child(odd){background:var(--panel)}.kv dt{font-family:var(--mono);letter-spacing:.02em;color:var(--alt);padding-top:.15rem;font-size:.78rem}.kv dd{color:var(--ink);margin:0;font-size:.95rem;line-height:1.75}.tablewrap{background:var(--panel);border:1px solid var(--line);border-top-color:var(--line-strong);margin:1.2rem 0;padding:.15rem .95rem .3rem;overflow-x:auto}.datatable{border-collapse:collapse;width:100%;font-size:.9rem;line-height:1.7}.datatable caption{caption-side:top;letter-spacing:.05em;color:var(--muted);text-align:left;padding:.85rem 0 .15rem;font-size:.74rem}.datatable th,.datatable td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:.62rem .95rem}.datatable thead th{font-family:var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);background:var(--panel-2);white-space:nowrap;font-size:.7rem;font-weight:600}.datatable tbody tr:last-child td{border-bottom:0}.datatable tbody tr:hover td{background:var(--ground-2)}.datatable td:first-child{white-space:nowrap;font-weight:600}.linklist{margin:0 0 1.25rem;padding:0;list-style:none}.linklist li+li{margin-top:2px}.linklist a{background:var(--panel);border:1px solid var(--line);padding:.95rem 1.1rem;text-decoration:none;display:block}.linklist a:hover{border-color:var(--accent);background:var(--panel-2)}.link-label{color:var(--ink);font-weight:700}.link-tag{font-family:var(--mono);letter-spacing:.08em;border:1px solid var(--alt);color:var(--alt);vertical-align:middle;margin-left:.6rem;padding:0 .35rem;font-size:.64rem;display:inline-block}.link-note{color:var(--muted);margin-top:.2rem;font-size:.85rem;line-height:1.7;display:block}.filter{background:var(--panel);border:1px solid var(--line);margin:1.4rem 0 2rem;padding:.9rem 1rem}.filter input{background:var(--ground);width:100%;color:var(--ink);border:1px solid var(--line-strong);font-family:var(--mono);padding:.7rem .85rem;font-size:.9rem}.filter input::placeholder{color:var(--muted)}.filter input:focus{outline:2px solid var(--alt);outline-offset:1px;border-color:var(--alt)}.filter-count{font-family:var(--mono);letter-spacing:.05em;color:var(--muted);margin:.5rem 0 0;font-size:.74rem}.checklist{background:var(--panel);border:1px solid var(--line);margin:1.4rem 0 1.8rem;padding:1.1rem 1.2rem 1.3rem}.checklist-head{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:1rem;padding-bottom:.6rem;display:flex}.checklist-head h3{letter-spacing:-.01em;margin:0;font-size:1rem}.checklist-count{font-family:var(--mono);color:var(--alt);margin:0;font-size:.76rem}.checklist ol{counter-reset:ck;margin:.7rem 0 0;padding:0;list-style:none}.checklist li{counter-increment:ck;border-bottom:1px solid var(--line)}.checklist li:last-child{border-bottom:0}.checklist label{cursor:pointer;grid-template-columns:auto 1.9rem minmax(0,1fr);align-items:start;gap:.7rem;padding:.55rem 0;display:grid}.checklist input[type=checkbox]{width:1.05rem;height:1.05rem;accent-color:var(--accent);margin:.4rem 0 0}.checklist li:before{content:counter(ck, decimal-leading-zero);font-family:var(--mono);color:var(--muted);padding-top:.28rem;font-size:.74rem}.checklist .ck-body{grid-column:3}.checklist .ck-title{font-size:.95rem;font-weight:600;display:block}.checklist .ck-note{color:var(--muted);font-size:.82rem;line-height:1.65;display:block}.checklist input:checked+.ck-body .ck-title{color:var(--alt);text-decoration:line-through 1px}.checklist-actions{flex-wrap:wrap;gap:.6rem;margin-top:.9rem;display:flex}.checklist-btn{font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line-strong);cursor:pointer;background:0 0;padding:.4rem .7rem;font-size:.72rem}.checklist-btn:hover{color:var(--ink);border-color:var(--accent)}.footer{background:var(--ground-2);border-top:1px solid var(--line);box-shadow:0 -1px 0 0 color-mix(in srgb, var(--alt) 24%, transparent);margin-top:clamp(3rem,6vw,5rem);padding-block:clamp(2.6rem,5vw,4rem) 2.4rem}.footer-name{letter-spacing:-.03em;max-width:22ch;margin:0 0 1.4rem;font-size:clamp(1.5rem,4vw,2.4rem);font-weight:800;line-height:1.15}.footer-nav{font-family:var(--mono);letter-spacing:.06em;flex-wrap:wrap;gap:1.25rem;margin-bottom:1.8rem;font-size:.76rem;display:flex}.footer-nav a{color:var(--muted);text-decoration:none}.footer-nav a:hover{color:var(--accent)}.footer-note{color:var(--muted);max-width:74ch;margin:.25rem 0;font-size:.8rem}.nf{padding-block:clamp(3rem,8vw,6rem)}.nf-code{font-family:var(--mono);letter-spacing:-.04em;color:var(--accent);margin:0;font-size:clamp(3.5rem,12vw,7rem);line-height:1}.nf h1{letter-spacing:-.02em;margin:.6rem 0 .8rem;font-size:clamp(1.4rem,3.4vw,2.1rem)}.nf p{color:var(--muted);max-width:52ch;margin:0 0 1.6rem}.nf-links{columns:2;column-gap:2rem;margin:0 0 2rem;padding:0;font-size:.92rem;list-style:none}.nf-links li{break-inside:avoid;padding:.25rem 0}.nf-links a{color:var(--muted);text-decoration:none}.nf-links a:hover{color:var(--accent)}.nf-back{background:var(--accent-fill);color:var(--on-accent);font-family:var(--mono);letter-spacing:.08em;padding:.7rem 1.2rem;font-size:.8rem;text-decoration:none;display:inline-block}@media (width<=62rem){.masthead-inner{flex-wrap:wrap;gap:.5rem 1rem;padding-block:.7rem}.nav{scrollbar-width:none;order:3;gap:1rem;width:100%;padding-bottom:.35rem;overflow-x:auto}.nav::-webkit-scrollbar{display:none}.nav a{white-space:nowrap}.nf-links{columns:1}}@media (width<=40rem){body{font-size:1rem}.kv-row{grid-template-columns:minmax(0,1fr);gap:.15rem}.kv dt{padding-top:0}.tablewrap{padding-inline:.55rem}.datatable{font-size:.84rem}.datatable th,.datatable td{padding:.5rem .6rem}}@keyframes rise{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}.eng-hc-inner h1{animation:.6s cubic-bezier(.2,.7,.2,1) both rise}.eng-hc-inner .eng-lead{animation:.6s cubic-bezier(.2,.7,.2,1) 80ms both rise}.js [data-reveal]{opacity:0;transition:opacity .5s,transform .5s cubic-bezier(.2,.7,.2,1);transform:translateY(20px)}.js [data-reveal].in{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}}.eng-facts-chips li>span{white-space:nowrap;flex:none}.upd-log{border-top:1px solid var(--line,var(--bp-line,#c9d2d8));margin:2.8rem 0 0;padding-top:1.2rem}.upd-log h2{letter-spacing:.04em;margin:0 0 .8rem;font-size:1.05rem}.upd-log dl{grid-template-columns:8.5rem minmax(0,1fr);gap:.55rem 1.2rem;margin:0;display:grid}.upd-log dt{font-family:var(--font-mono,monospace);color:var(--muted,#5a6570);font-size:.78rem}.upd-log dd{margin:0;font-size:.92rem;line-height:1.75}@media (width<=620px){.upd-log dl{grid-template-columns:minmax(0,1fr);gap:.2rem}.upd-log dd{margin-bottom:.6rem}}.answer-first{border-left:4px solid var(--accent,#b23a48);background:var(--panel,#0000000a);margin:1rem 0 0;padding:.9rem 1.1rem;font-weight:600;line-height:1.7}:root{--sk-tint:color-mix(in srgb, var(--ink) 6%, var(--ground));--sk-radius:2px}[class$=-kicker],[class$=-eyebrow],[class$=-overline],[class$=-no],[class$=-num]{display:none!important}[class$=-sec],[class$=-row],[class$=-facts],[class$=-index],[class$=-head],[class$=-seal]{border:0!important}[class$=-facts]{border:0!important;grid-template-columns:repeat(auto-fit,minmax(9rem,1fr))!important;gap:2px!important;display:grid!important}[class$=-facts]>*{border-radius:var(--sk-radius);background:var(--sk-tint)!important;border:0!important;padding:.65rem .8rem!important}main>section:first-of-type h1{max-width:24ch;letter-spacing:-.035em!important;text-align:left!important;font-size:clamp(2rem,4.6vw,3.4rem)!important;line-height:1.05!important}[class$=-text]{font-size:.95rem!important;line-height:1.8!important}[class$=-lead]{font-size:1rem!important;line-height:1.85!important}[class$=-grid]>*,[class$=-cards]>*{border-radius:var(--sk-radius);background:var(--sk-tint)!important;border:0!important}.bp-tr-map li a,[class$=-map] li a{grid-template-columns:minmax(0,1fr) auto!important;gap:.5rem 1rem!important}:root{--sk-tint:color-mix(in srgb, var(--ink) 5%, var(--ground));--sk-tint-2:color-mix(in srgb, var(--ink) 10%, var(--ground));--sk-radius:2px;--sk-pad:clamp(1.1rem, 2.4vw, 1.6rem);--sk-gap:clamp(.6rem, 1.2vw, .9rem)}.wordmark{align-items:center;gap:.5rem}.wordmark-mark{border-radius:0;flex:none;width:1.5rem;height:1.5rem;color:var(--sk-ink-accent,var(--accent))!important;background:0 0!important;padding:0!important}.wordmark-text{letter-spacing:-.01em;font-size:.95rem;font-weight:700;white-space:normal!important;text-overflow:clip!important;overflow:visible!important}.eng-hero-band,.eng-hero-center,.eng-hero-split{text-align:left!important;color:var(--ink)!important;background:0 0!important;padding-block:clamp(1.6rem,4vw,3rem)!important}.eng-hero-band h1,.eng-hero-center h1,.eng-hero-split h1,.eng-hb-facts li,.eng-hb-facts span,.eng-hb-facts b,.eng-hb-facts em,.eng-hb-facts dt,.eng-hb-facts dd{color:var(--ink)!important}.eng-hero-band h1,.eng-hero-center h1,.eng-hero-split h1{text-wrap:balance;max-width:22ch;letter-spacing:-.035em!important;margin:0 0 .9rem!important;font-size:clamp(2rem,5vw,3.9rem)!important;font-weight:800!important;line-height:1.02!important}.eng-kicker,.eng-hc-meta{display:none!important}.eng-hero-band .eng-lead,.eng-hero-center .eng-lead,.eng-hero-split .eng-lead{max-width:44rem;color:var(--ink);opacity:.86;font-size:1rem;line-height:1.85}.eng-hb-inner,.eng-hc-inner,.eng-hs-grid{text-align:left!important;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr)!important;align-items:end!important;gap:clamp(1.2rem,3vw,2.6rem)!important;display:grid!important}.eng-hb-main,.eng-hc-main,.eng-hs-main{display:block!important}.eng-hb-facts,.eng-hs-facts{border-radius:var(--sk-radius);background:var(--panel)!important;padding:var(--sk-pad)!important;color:var(--ink)!important;border:0!important;grid-area:1/2/span 2!important;align-self:end!important;display:block!important}.eng-hb-facts>*,.eng-hs-facts>*{background:0 0!important}.eng-hb-facts *,.eng-hs-facts *{color:inherit!important}section.eng-hero-band .eng-hb-facts span,section.eng-hero-band .wrap.eng-hb-inner ul.eng-hb-facts li span,section.eng-hero-band .wrap.eng-hb-inner ul.eng-hb-facts li b,section.eng-hero-band .wrap.eng-hb-inner ul.eng-hb-facts li strong,section.eng-hero-band .wrap.eng-hb-inner ul.eng-hb-facts li dt,section.eng-hero-band .wrap.eng-hb-inner ul.eng-hb-facts li dd,section.eng-hero-band .eng-hs-facts span,section.eng-hero-band .eng-hs-facts b{color:var(--ink)!important}.eng-hb-facts>*,.eng-hs-facts>*{border:0!important}.eng-st-no,.eng-it-no,.eng-ig-no,.eng-ic-no,.eng-bd-no,.eng-sec-no,.eng-toc-h{display:none!important}.eng-idx-list,.eng-idx-list ul,.eng-idx-list ol{border:0!important}.eng-idx-list li{border:0!important;margin:0 0 2px!important}.eng-idx-list li a{background:var(--sk-tint);border-radius:var(--sk-radius);border:0!important;grid-template-columns:minmax(0,1fr) auto!important;align-items:baseline!important;gap:.2rem 1rem!important;padding:.8rem 1rem!important;text-decoration:none!important;display:grid!important}.eng-idx-list .eng-il-dots,.eng-idx-list .eng-il-n{display:none!important}.eng-idx-list li a>span:first-child{font-weight:600}.eng-idx-list li a:after{content:"読む →";color:var(--sk-ink-accent,var(--accent));white-space:nowrap;font-size:.78rem}.eng-idx-table,.eng-idx-table ul,.eng-idx-table ol,.eng-idx-table li{border:0!important}.eng-idx-table li a{background:var(--sk-tint);border-radius:var(--sk-radius);margin-bottom:2px;grid-template-columns:minmax(0,1fr) auto!important;align-items:baseline!important;gap:.2rem 1rem!important;padding:.85rem 1rem!important;display:grid!important}.eng-idx-table li+li{margin-top:2px}.eng-idx-table .eng-it-n{text-align:right!important;color:var(--muted)!important;font-size:.78rem!important}.eng-idx-table .eng-it-lead{display:none!important}.eng-idx-grid,.eng-idx-cards,.eng-board{background:0 0!important;border:0!important;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr))!important;gap:2px!important;display:grid!important}.eng-idx-grid>*,.eng-idx-cards>*,.eng-board>*{border-radius:var(--sk-radius);background:var(--sk-tint)!important;border:0!important;margin:0!important;padding:clamp(.9rem,1.8vw,1.2rem)!important}.eng-idx-grid a>span:not(.eng-ig-no),.eng-idx-cards a>span:not(.eng-ic-no),.eng-board a>span:not(.eng-bd-no){display:none!important}.eng-idx-grid h3,.eng-idx-cards h3,.eng-board h3,.eng-idx-grid b,.eng-board b{letter-spacing:-.01em;display:block;font-size:1rem!important;line-height:1.45!important}.eng-steps,.eng-steps li{border:0!important}.eng-steps li{grid-template-columns:minmax(0,1fr) auto!important;gap:.15rem 1rem!important;padding:.85rem 0!important;display:grid!important}.eng-steps li>b{letter-spacing:-.01em;grid-column:1!important;font-size:1.05rem!important}.eng-steps li>span:not(.eng-st-no){color:var(--muted);font-size:.92rem;line-height:1.7;grid-column:1!important}.eng-steps li>a{white-space:nowrap;text-decoration:none;color:var(--muted)!important;grid-area:1/2/span 2!important;align-self:center!important;font-size:.78rem!important}.eng-steps a:hover{color:var(--accent)!important}.eng-kpi-stack{border:0!important;margin:0!important}.eng-kpi-stack>div{border:0!important;grid-template-columns:8.5rem minmax(0,1fr)!important;align-items:baseline!important;gap:.35rem 1rem!important;padding:.55rem 0!important;display:grid!important}.eng-kpi-stack dt{color:var(--muted)!important;font-size:.82rem!important}.eng-kpi-stack dd{margin:0!important}.eng-facts-dl,.eng-facts-dl div,.eng-facts-dl dl,.eng-facts-dl dt,.eng-facts-dl dd,.kv-row,.kv>div,.kv dl,.kv dt,.kv dd{border:0!important}.eng-facts-dl>div{padding:.5rem 0!important}.eng-kpi,.eng-kpi-row,.eng-facts-dl{gap:var(--sk-gap)!important}.eng-kpi>*,.eng-kpi-row>*{background:var(--sk-tint);border-radius:var(--sk-radius);border:0!important;padding:.8rem .9rem!important}.eng-sec,.eng-b-h{border-top:0!important}.eng-sec{padding:clamp(1.2rem,2.4vw,1.7rem) 0}.eng-sec h2{letter-spacing:-.01em;font-size:clamp(1.12rem,1.9vw,1.32rem)!important}h1:before,h1:after,h2:before,h2:after,h3:before,h3:after{content:none!important}.eng-sec h2,.prose h2,.eng-cards h2,.eng-art-head h1{background-image:none!important;border-bottom:0!important}.eng-sec h2{display:block!important}.prose h2,.eng-cards h2,.eng-sec h2{background:0 0!important;border-left:0!important;padding-left:0!important}.eng-art-head h1{text-wrap:balance;letter-spacing:-.03em!important;font-size:clamp(1.7rem,3.6vw,2.7rem)!important;line-height:1.12!important}.eng-cards{max-width:46rem!important}.prose h2{margin-top:0!important}.eng-cards section{background:0 0!important;border:0!important;margin-block:1.5rem!important;padding:0!important}.eng-cards section>h2{margin:0 0 .6rem!important}.prose>section{margin-top:clamp(1.7rem,3vw,2.5rem)}.prose>section:first-child{margin-top:0}.eng-cards p{font-size:1.02rem;line-height:1.95}.answer-first{border-radius:var(--sk-radius);line-height:1.85;background:var(--sk-tint)!important;border-left:0!important;padding:.85rem 1.1rem .9rem!important;font-size:1.02rem!important}.eng-next{padding-top:.4rem;border-top:0!important}.eng-quote{border-left-width:2px}.footer{background:var(--sk-tint)!important;color:var(--ink)!important;border-top:0!important}.footer p,.footer a,.footer span,.footer li,.footer-name,.footer-nav a{color:inherit!important}.footer-name{letter-spacing:-.03em;line-height:1.05;color:var(--ink)!important;font-size:clamp(1.5rem,4vw,2.6rem)!important}.footer-note,.footer-meta{color:var(--muted)!important}:root{--sk-ink-accent:color-mix(in srgb, var(--accent) 55%, var(--ink))}.masthead .nav a.nav-out,.masthead .nav a[aria-current],.nav a.nav-out{color:var(--sk-ink-accent)!important}@media (width<=860px){.eng-hb-inner,.eng-hc-inner,.eng-hs-grid{grid-template-columns:minmax(0,1fr)!important;align-items:start!important}.eng-hb-facts,.eng-hs-facts{grid-area:auto/1!important}.eng-hero-band h1,.eng-hero-center h1,.eng-hero-split h1{font-size:clamp(1.9rem,8vw,2.6rem)!important}.eng-idx-table li a{grid-template-columns:minmax(0,1fr)!important}.eng-it-n{grid-row:auto;text-align:left!important;grid-column:1!important}.eng-it-lead{grid-column:1!important}}