:root{color-scheme:light;--bg:#fbf8f1;--surface:#fff;--surface-2:#f4eee1;--surface-3:#ede4d3;--ink:#2c2a26;--ink-2:#6a6459;--ink-2-deep:#524e45;--ink-faint:#6a6458;--primary:#ba7517;--primary-ink:#854f0b;--primary-fill:#854f0b;--primary-soft:#faeeda;--primary-line:#e9d6ab;--accent:#f0653a;--accent-ink:#b53b11;--accent-ink-deep:#8b3216;--accent-soft:#fdebe3;--good:#0f7a44;--good-soft:#e1f4e9;--warn:#8a5a06;--warn-soft:#fbefd6;--line:#2c2a261f;--line-strong:#2c2a2638;--shadow:0 10px 30px -18px #3c2d1442;--shadow-hover:0 16px 36px -24px #3c2d1452;--r:14px}:root[data-theme=dark]{color-scheme:dark;--bg:#1a1613;--surface:#241f19;--surface-2:#2d2620;--surface-3:#382f26;--ink:#f1ebe0;--ink-2:#c7bcac;--ink-2-deep:var(--ink-2);--ink-faint:#a69c8b;--primary:#e3a24b;--primary-ink:#f2c079;--primary-fill:#7a4e12;--primary-soft:#3a2c17;--primary-line:#4e3c1f;--accent:#ff7a4d;--accent-ink:#ffa079;--accent-ink-deep:var(--accent-ink);--accent-soft:#3a2017;--good:#3bc97e;--good-soft:#143020;--warn:#e2a94b;--warn-soft:#332810;--line:#f1ebe01f;--line-strong:#f1ebe038;--shadow:0 12px 32px -18px #000000a8;--shadow-hover:0 18px 40px -22px #000000bd}*{box-sizing:border-box;margin:0;padding:0}a,button{-webkit-tap-highlight-color:transparent}html{scroll-behavior:smooth;background:linear-gradient(var(--bg),var(--bg));overflow-x:clip}@supports not (overflow:clip){html{overflow-x:hidden}}body{color:var(--ink);background:linear-gradient(var(--bg),var(--bg));-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-family:Zen Kaku Gothic New,sans-serif;font-size:17px;line-height:1.84;overflow-x:hidden}h1,h2,h3,.round{letter-spacing:.01em;font-family:Zen Maru Gothic,sans-serif;font-weight:600;line-height:1.4}.tek{font-feature-settings:"tnum";font-family:Outfit,sans-serif}a{color:var(--primary-ink)}:focus-visible{outline:3px solid var(--primary);outline-offset:3px;border-radius:6px}.skip-link{z-index:2000;background:linear-gradient(var(--primary-fill),var(--primary-fill));color:#fff;border-radius:0 0 10px;padding:12px 22px;font-family:Zen Maru Gothic,sans-serif;font-size:.94rem;font-weight:700;text-decoration:none;transition:transform .15s;position:absolute;top:0;left:0;transform:translateY(-120%)}.skip-link:focus{transform:translateY(0)}.mark{color:var(--ink);-webkit-box-decoration-break:clone;box-decoration-break:clone;background-image:linear-gradient(#fff,#fff);border-radius:.3em;padding:.05em .34em;font-weight:700;box-shadow:0 0 0 1px #3c2d1414}#bar{z-index:1000;background:linear-gradient(var(--accent),var(--accent));width:0;height:4px;position:fixed;top:0;left:0}.wrap{max-width:1080px;margin:0 auto;padding:0 22px}.js .rv{opacity:0;transition:opacity .65s cubic-bezier(.2,.7,.2,1),transform .65s cubic-bezier(.2,.7,.2,1);transform:translateY(24px)}.rv.in{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rv{opacity:1!important;transform:none!important}.theme-toggle:active{transform:none!important}}@media (prefers-contrast:more){.card,.theme-toggle,.disc,.quote{border-color:var(--line-strong)}}.eyebrow{letter-spacing:.12em;color:var(--primary-ink);text-transform:uppercase;align-items:center;gap:10px;margin-bottom:16px;font-family:Outfit;font-size:.82rem;font-weight:700;display:inline-flex}.eyebrow .idx{background:linear-gradient(var(--primary-fill),var(--primary-fill));color:#fff;border-radius:7px;padding:2px 9px;font-size:.78rem}header.hero{background:radial-gradient(circle at 88% 0%, var(--primary-soft), transparent 46%), radial-gradient(circle at 0% 70%, var(--accent-soft), transparent 42%);padding:42px 0 56px}.topbar{justify-content:space-between;align-items:center;padding:6px 0 38px;font-family:Outfit;font-size:.92rem;font-weight:700;display:flex}.brandmark{color:var(--ink);align-items:center;gap:10px;text-decoration:none;display:flex}.brandmark .dot{background:linear-gradient(var(--accent),var(--accent));border-radius:4px;width:13px;height:13px;transform:rotate(45deg)}.topbar-right{align-items:center;gap:12px;display:flex}.stamp{color:var(--primary-ink);background:linear-gradient(var(--surface),var(--surface));border:1.5px solid var(--line);white-space:nowrap;border-radius:999px;padding:6px 14px}.theme-toggle{border:1.5px solid var(--line);background:linear-gradient(var(--surface),var(--surface));width:42px;height:38px;color:var(--ink-2);cursor:pointer;transition:border-color var(--dur-hover) var(--ease-out),color var(--dur-hover) var(--ease-out),background var(--dur-hover) var(--ease-out),transform var(--dur-press) var(--ease-out);border-radius:10px;flex:none;place-items:center;display:inline-grid}.theme-toggle:hover{border-color:var(--primary);color:var(--primary-ink)}.theme-toggle:active{transition-duration:var(--dur-press);transform:scale(.9)}.theme-toggle svg{width:18px;height:18px;display:block}.theme-toggle .ic-sun{display:none}[data-theme=dark] .theme-toggle .ic-sun{display:block}[data-theme=dark] .theme-toggle .ic-moon{display:none}@media print{.theme-toggle{display:none!important}}.ruby-toggle{border:1.5px solid var(--line);background:linear-gradient(var(--surface),var(--surface));height:38px;color:var(--ink-2);cursor:pointer;letter-spacing:.02em;white-space:nowrap;transition:border-color var(--dur-hover) var(--ease-out),color var(--dur-hover) var(--ease-out),background var(--dur-hover) var(--ease-out),transform var(--dur-press) var(--ease-out);border-radius:10px;flex:none;justify-content:center;align-items:center;padding:0 12px;font-family:Outfit,sans-serif;font-size:.8rem;font-weight:700;display:inline-flex}.ruby-toggle:hover{border-color:var(--primary);color:var(--primary-ink)}.ruby-toggle:active{transition-duration:var(--dur-press);transform:scale(.94)}.ruby-toggle[aria-pressed=true]{border-color:var(--primary);color:var(--primary-ink)}@media print{.ruby-toggle{display:none!important}}ruby{ruby-align:center}rt{letter-spacing:-.06em;color:currentColor;opacity:1;-webkit-user-select:none;user-select:none;font-family:Zen Kaku Gothic New,sans-serif;font-size:.5em;font-weight:600;line-height:1}@supports ((-webkit-hyphens:none)){rt{margin-bottom:-.676em}}@supports not ((-webkit-hyphens:none)){rt{position:relative;top:.1035em}}rp{display:none}@media print{rt{opacity:1}}html[data-ruby=off] rt{display:none}html[data-ruby-switching] .rv{transition:none!important;transform:none!important}.term{-webkit-appearance:none;appearance:none;border:none;border-bottom:1.5px dotted var(--primary);color:inherit;font:inherit;font-weight:inherit;letter-spacing:inherit;text-align:inherit;cursor:help;transition:opacity var(--dur-press) var(--ease-out);background:0 0;padding:0;display:inline;position:relative}.term:active{opacity:.65}.term:after{content:"?";color:#fff;background:linear-gradient(var(--primary),var(--primary));vertical-align:super;border-radius:999px;margin-left:2px;padding:1px 4px;font-family:Outfit,sans-serif;font-size:.62em;font-weight:800;line-height:1}.term-tooltip{background:linear-gradient(var(--surface),var(--surface));width:min(280px,78vw);color:var(--ink);border:1.5px solid var(--primary-line);letter-spacing:.01em;text-align:left;box-shadow:var(--shadow-hover);opacity:0;visibility:hidden;pointer-events:none;z-index:200;border-radius:12px;padding:12px 15px;font-family:Zen Kaku Gothic New,sans-serif;font-size:.82rem;font-weight:500;line-height:1.7;transition:opacity .18s,visibility .18s,transform .18s;position:fixed;transform:translateY(6px)}.term-tooltip:after{content:"";top:100%;left:var(--tt-arrow,50%);border:6px solid #0000;border-top-color:var(--surface);position:absolute;transform:translate(-50%)}.term-tooltip.tt-below{transform:translateY(-6px)}.term-tooltip.tt-below:after{border-top-color:#0000;border-bottom-color:var(--surface);top:auto;bottom:100%}.term:hover .term-tooltip,.term:focus-visible .term-tooltip,.term.active .term-tooltip{opacity:1;visibility:visible;transform:translateY(0)}.term:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:2px}@media (hover:none){.term{background:linear-gradient(var(--primary-soft),var(--primary-soft));border-radius:4px;padding:0 3px 0 1px}}.hero h1{margin:6px 0 22px;font-size:clamp(2.1rem,6vw,3.6rem);line-height:1.28}.hero h1 .hl{color:var(--primary-ink)}.hero h1 .hl2{color:var(--accent-ink-deep);position:relative}.hero h1 .hl2:after{content:"";background:linear-gradient(var(--accent-soft),var(--accent-soft));z-index:-1;border-radius:4px;height:26%;position:absolute;bottom:6%;left:0;right:0}.lead{max-width:680px;color:var(--ink-2-deep);font-size:clamp(1.05rem,2vw,1.24rem);font-weight:500}.lead b{color:var(--ink);font-weight:700}.tldr{background:linear-gradient(var(--surface),var(--surface));border:1.5px solid var(--primary-line);border-left:5px solid var(--primary);border-radius:var(--r);max-width:700px;box-shadow:var(--shadow);margin-top:26px;padding:22px 24px}.tldr .lab{letter-spacing:.06em;color:var(--accent-ink);margin-bottom:8px;font-family:Outfit;font-size:.82rem;font-weight:800}.tldr p{color:var(--ink);font-size:1.04rem}.tldr p b{color:var(--primary-ink)}.hero-chips{flex-wrap:wrap;gap:10px;margin-top:22px;display:flex}.chip{background:linear-gradient(var(--surface),var(--surface));border:1.5px solid var(--line);color:var(--ink-2);border-radius:999px;align-items:center;gap:8px;padding:9px 16px;font-size:.9rem;font-weight:500;display:inline-flex}.chip .k{background:linear-gradient(var(--good),var(--good));border-radius:50%;width:9px;height:9px}section{background:linear-gradient(var(--bg),var(--bg));padding:58px 0}section.alt{background:linear-gradient(var(--surface-2),var(--surface-2))}.sec-head{max-width:760px;margin-bottom:36px}.sec-head h2{font-size:clamp(1.5rem,3.6vw,2.15rem)}.sec-head h2 em{color:var(--primary);font-style:normal}.sec-head p{color:var(--ink-2);margin-top:14px;font-size:1.02rem}.sec-head p b{color:var(--ink)}.asof{color:var(--ink-faint);background:linear-gradient(var(--surface-3),var(--surface-3));border-radius:999px;margin-bottom:14px;padding:5px 13px;font-size:.82rem;font-weight:600;display:inline-block}.divider{align-items:center;gap:14px;max-width:1080px;margin:0 auto;padding:0 22px;display:flex}.divider .ln{background:linear-gradient(var(--line),var(--line));border-radius:2px;flex:1;height:2px}.divider .d{color:var(--ink-faint);font-family:Outfit;font-size:.78rem;font-weight:700}.grid{gap:18px;display:grid}.g-wide{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.g-two{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}.card{background:linear-gradient(var(--surface),var(--surface));border:1px solid var(--line);border-radius:var(--r);transition:transform var(--dur-hover) var(--ease-out),border-color var(--dur-hover) var(--ease-out),box-shadow var(--dur-hover) var(--ease-out);padding:22px}@media (hover:hover){.card:hover{border-color:var(--primary-line);box-shadow:var(--shadow-hover);transform:translateY(-2px)}}.ex-field{letter-spacing:.06em;color:var(--accent-ink);text-transform:uppercase;margin-bottom:6px;font-family:Outfit;font-size:.72rem;font-weight:700}.ex-card h3{margin-bottom:14px;font-size:1.1rem}.ex-row{margin-top:12px}.ex-row:first-of-type{margin-top:0}.ex-lab{letter-spacing:.05em;color:var(--primary-ink);background:linear-gradient(var(--primary-soft),var(--primary-soft));border-radius:999px;margin-bottom:6px;padding:3px 10px;font-family:Outfit;font-size:.7rem;font-weight:800;display:inline-block}.ex-row p{color:var(--ink-2);font-size:.92rem}.ex-row p b{color:var(--ink)}.ex-row.limit .ex-lab{color:var(--accent-ink);background:linear-gradient(var(--accent-soft),var(--accent-soft))}.tbl-wrap{background:linear-gradient(var(--surface),var(--surface));border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);margin-top:8px;overflow-x:auto}table.tbl{border-collapse:collapse;width:100%;min-width:560px}.tbl th,.tbl td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:13px 18px;font-size:.9rem}.tbl thead th{letter-spacing:.04em;color:var(--ink-faint);text-transform:uppercase;background:linear-gradient(var(--surface-2),var(--surface-2));font-family:Outfit;font-size:.76rem;font-weight:700}.tbl tbody tr:last-child td{border-bottom:0}.tbl td.emph{color:var(--ink);white-space:nowrap;font-weight:700}.tbl td.eg{color:var(--ink-faint);font-size:.84rem}.quote{background:linear-gradient(var(--surface-2),var(--surface-2));border-left:4px solid var(--primary);border-radius:9px;margin-top:18px;padding:18px 20px}.quote .en{color:var(--ink-2);font-family:Outfit;font-size:.86rem;font-style:italic;line-height:1.6}.quote .ja{color:var(--ink);margin-top:8px;font-size:.94rem}.quote .cite{color:var(--ink-faint);margin-top:8px;font-size:.78rem;font-weight:700}.callout{background:linear-gradient(var(--primary-soft),var(--primary-soft));border:1px solid var(--primary-line);border-radius:12px;gap:14px;margin-top:22px;padding:17px 21px;font-size:.96rem;display:flex}.callout .ic{width:26px;height:26px;color:var(--primary);flex:none}.callout b{color:var(--primary-ink)}.callout a{color:var(--primary-ink);font-weight:700}[data-theme=dark] .callout{border-color:var(--primary-line)}.note{background:linear-gradient(var(--accent-soft),var(--accent-soft));border:1px solid #f4c9b8;border-radius:12px;gap:13px;margin-top:22px;padding:17px 21px;font-size:.94rem;display:flex}.note .ic{width:26px;height:26px;color:var(--accent-ink);flex:none}.note b{color:var(--accent-ink)}[data-theme=dark] .note{border-color:#5a3526}.hedge{letter-spacing:.02em;color:var(--ink-faint);background:linear-gradient(var(--surface-3),var(--surface-3));border:1px solid var(--line-strong);white-space:nowrap;vertical-align:1px;border-radius:999px;align-items:center;margin-left:5px;padding:2px 8px;font-family:Outfit;font-size:.66rem;font-weight:700;display:inline-flex}.hedge.good{color:var(--good);background:linear-gradient(var(--good-soft),var(--good-soft));border-color:#bfe6ce}.hedge.self{color:var(--accent-ink);background:linear-gradient(var(--accent-soft),var(--accent-soft));border-color:#f4c9b8}[data-theme=dark] .hedge.self{border-color:#5a3526}.legend{color:var(--ink-2);background:linear-gradient(var(--surface),var(--surface));border:1px solid var(--line);border-radius:var(--r);max-width:760px;margin-top:26px;padding:20px 22px;font-size:.9rem}.legend b{color:var(--ink)}.gl h3{margin-bottom:6px;font-size:1.08rem}.gl .gterm-label{letter-spacing:.08em;color:var(--accent-ink);text-transform:uppercase;margin-bottom:5px;font-family:Outfit;font-size:.7rem;font-weight:700;display:block}.gl p{color:var(--ink-2);font-size:.9rem}.source-list{background:linear-gradient(var(--surface),var(--surface));border:1px solid var(--line);color:var(--ink-2);border-radius:12px;margin-top:20px;padding:18px 20px;font-size:.84rem}.source-list .st{letter-spacing:.04em;color:var(--ink-faint);margin-bottom:8px;font-family:Outfit;font-weight:800}.source-list a{color:var(--primary-ink);margin:4px 12px 4px 0;font-weight:700;text-decoration:none;display:inline-block}.source-list a:hover{text-decoration:underline}.source-list span.plain{color:var(--ink-faint);margin:4px 12px 4px 0;display:inline-block}.fresh-banner{z-index:60;background:linear-gradient(var(--surface),var(--surface));border:1.5px solid var(--line);max-width:300px;color:var(--ink-2);box-shadow:var(--shadow);cursor:pointer;white-space:nowrap;border-radius:999px;align-items:center;gap:8px;padding:8px 14px;font-size:.78rem;transition:max-width .35s,padding .35s,opacity .3s,transform .3s;display:flex;position:fixed;bottom:16px;right:16px;overflow:hidden}.fresh-banner .fb-dot{background:linear-gradient(var(--good),var(--good));border-radius:50%;flex:none;width:9px;height:9px}.fresh-banner .fb-text{text-overflow:ellipsis;overflow:hidden}.fresh-banner b{color:var(--ink);font-weight:700}.fresh-banner.mini{color:#0000;max-width:34px;padding:8px}.fresh-banner.mini .fb-text{opacity:0}.fresh-banner.stale{background:linear-gradient(var(--accent-soft),var(--accent-soft));border-color:#f4c9b8}.fresh-banner.stale .fb-dot{background:linear-gradient(var(--accent),var(--accent))}.fresh-banner.stale b{color:var(--accent-ink)}@media (width<=560px){.fresh-banner{max-width:220px;font-size:.74rem;bottom:10px;right:10px}}.fresh-banner.fc-hide{opacity:0;pointer-events:none;transform:translateY(12px)}@media (prefers-reduced-motion:reduce){.fresh-banner{transition:none}}.disc{background:linear-gradient(var(--warn-soft),var(--warn-soft));border:1px solid #ead3a2;border-radius:14px;margin-top:8px;padding:24px 26px}.disc h3{color:var(--warn);align-items:center;gap:9px;margin-bottom:12px;font-size:1.02rem;display:flex}.disc ul{color:var(--ink-2);font-size:.9rem;list-style:none}.disc li{margin-bottom:9px;padding-left:22px;position:relative}.disc li:before{content:"•";color:var(--accent);font-weight:800;position:absolute;left:6px}.disc b{color:var(--ink)}footer{text-align:center;color:var(--ink-faint);border-top:1.5px solid var(--line);margin-top:16px;padding:44px 0 56px;font-size:.86rem}footer .bm{color:var(--ink);align-items:center;gap:8px;margin-bottom:10px;font-family:Zen Maru Gothic;font-weight:900;display:inline-flex}footer .bm .dot{background:linear-gradient(var(--accent),var(--accent));border-radius:3px;width:12px;height:12px;transform:rotate(45deg)}footer .creator{color:var(--ink-faint);margin-top:14px;font-size:.82rem}footer .creator a{color:var(--primary-ink);margin-top:3px;font-family:Outfit;font-weight:700;text-decoration:none;display:inline-block}footer .creator a:hover{text-decoration:underline}footer .hub{margin-top:18px;font-size:.82rem}footer .hub a{color:var(--ink-faint);transition:color var(--dur-hover) var(--ease-out);font-family:Outfit,sans-serif;text-decoration:none}footer .hub a:hover{color:var(--ink-2)}@media (width<=760px){body{font-size:16px}section{padding:48px 0}.tbl th,.tbl td{padding:11px 13px;font-size:.86rem}}[data-theme=dark] .mark{background-image:linear-gradient(var(--primary-soft),var(--primary-soft));color:var(--ink);box-shadow:0 0 0 1px #e3a24b33}