#site-header[data-astro-cid-ctg3m53h]{position:fixed;inset:0 0 auto;height:var(--hdr-h);background:color-mix(in srgb,var(--paper) 86%,transparent);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--line);z-index:100;view-transition-name:site-header}@supports (animation-timeline: scroll()){#site-header[data-astro-cid-ctg3m53h]{animation:hdr-lift linear both;animation-timeline:scroll(root block);animation-range:0 120px}}@keyframes hdr-lift{to{border-bottom-color:var(--hairline);box-shadow:0 6px 24px -12px #1018282e}}.bar[data-astro-cid-ctg3m53h]{height:var(--hdr-h);display:flex;align-items:center;justify-content:space-between;gap:16px}.brand[data-astro-cid-ctg3m53h]{font-family:var(--font-sans);font-feature-settings:"palt";font-size:clamp(.95rem,2.4vw,1.08rem);letter-spacing:.08em;text-decoration:none;font-weight:700;white-space:nowrap;display:flex;align-items:baseline;gap:10px}.byline[data-astro-cid-ctg3m53h]{font-family:var(--font-display);font-size:.8rem;letter-spacing:.16em;color:var(--ink-2);font-weight:500;padding-left:10px;border-left:1px solid var(--hairline);line-height:1}@media(max-width:480px){.byline[data-astro-cid-ctg3m53h]{display:none}.brand[data-astro-cid-ctg3m53h]{font-size:.9rem;letter-spacing:.04em}}nav[data-astro-cid-ctg3m53h]{overflow-x:auto;scrollbar-width:none}nav[data-astro-cid-ctg3m53h]::-webkit-scrollbar{display:none}nav[data-astro-cid-ctg3m53h] ul[data-astro-cid-ctg3m53h]{display:flex;gap:clamp(14px,3.4vw,36px);list-style:none;margin:0;padding:0;white-space:nowrap}nav[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]{position:relative;display:inline-block;font-family:var(--font-sans);text-decoration:none;font-size:.84rem;font-weight:500;letter-spacing:.04em;padding:6px 0;white-space:nowrap;color:var(--ink-2);transition:color var(--dur-1)}nav[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]:after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right center;transition:transform .32s var(--ease-out)}nav[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]:hover{color:var(--ink)}nav[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]:hover:after{transform:scaleX(1);transform-origin:left center}nav[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h][aria-current=page]{color:var(--ink);font-weight:700}nav[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h][aria-current=page]:after{transform:scaleX(1);height:2px;background:var(--accent)}@media(max-width:560px){nav[data-astro-cid-ctg3m53h] ul[data-astro-cid-ctg3m53h]{gap:16px}nav[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]{font-size:.78rem}nav[data-astro-cid-ctg3m53h] li[data-astro-cid-ctg3m53h]:first-child{display:none}}.foot[data-astro-cid-gcn2mc3v]{margin-top:clamp(80px,10vw,128px);padding:clamp(48px,6vw,72px) 0 0;background:var(--paper-2);color:var(--ink);border-top:1px solid var(--line);overflow:hidden}.cols[data-astro-cid-gcn2mc3v]{display:grid;grid-template-columns:1.3fr 1.5fr 1fr;gap:40px}@media(max-width:720px){.cols[data-astro-cid-gcn2mc3v]{grid-template-columns:1fr;gap:32px}}.fbrand[data-astro-cid-gcn2mc3v]{font-feature-settings:"palt";font-size:1.25rem;font-weight:700;letter-spacing:.08em;margin:0 0 4px}.fen[data-astro-cid-gcn2mc3v]{font-family:var(--font-display);font-size:.8rem;letter-spacing:.22em;color:var(--accent-strong);font-weight:600;margin:0 0 18px}.ftag[data-astro-cid-gcn2mc3v]{font-size:.85rem;color:var(--ink-2);line-height:1.9;margin:0}.fhead[data-astro-cid-gcn2mc3v]{font-family:var(--font-display);font-size:var(--fs-label);font-weight:600;letter-spacing:.2em;color:var(--ink-2);margin:0 0 16px;padding-bottom:10px;border-bottom:1px solid var(--hairline)}.fhead[data-astro-cid-gcn2mc3v] a[data-astro-cid-gcn2mc3v],.fcol[data-astro-cid-gcn2mc3v] a[data-astro-cid-gcn2mc3v]{color:inherit;text-decoration:none}.fcol[data-astro-cid-gcn2mc3v] ul[data-astro-cid-gcn2mc3v]{list-style:none;margin:0;padding:0;display:grid;gap:12px}.catgrid[data-astro-cid-gcn2mc3v]{grid-template-columns:1fr 1fr;column-gap:20px}@media(max-width:330px){.catgrid[data-astro-cid-gcn2mc3v]{grid-template-columns:1fr}}.fcol[data-astro-cid-gcn2mc3v] li[data-astro-cid-gcn2mc3v] a[data-astro-cid-gcn2mc3v]{font-size:.86rem;color:var(--ink);background:linear-gradient(currentColor,currentColor) 0 100% / 0 1px no-repeat;transition:background-size .32s var(--ease-out);padding-bottom:1px}.fcol[data-astro-cid-gcn2mc3v] li[data-astro-cid-gcn2mc3v] a[data-astro-cid-gcn2mc3v]:hover{background-size:100% 1px}.oprow[data-astro-cid-gcn2mc3v]{margin-top:56px;padding-top:24px;border-top:1px solid var(--hairline);display:flex;align-items:center;gap:14px;flex-wrap:wrap}.oplogo[data-astro-cid-gcn2mc3v]{height:22px;width:auto;aspect-ratio:681 / 171}.operator[data-astro-cid-gcn2mc3v]{margin:0;font-size:.84rem}.operator[data-astro-cid-gcn2mc3v] a[data-astro-cid-gcn2mc3v]{color:inherit;text-underline-offset:3px}.copy[data-astro-cid-gcn2mc3v]{margin:10px 0 0;font-size:.78rem;color:var(--ink-2)}.wordmark[data-astro-cid-gcn2mc3v]{margin:clamp(32px,5vw,56px) 0 0;padding:0 clamp(12px,2vw,24px);font-family:var(--font-display);font-weight:700;font-size:5.5vw;line-height:.8;letter-spacing:-.02em;white-space:nowrap;color:transparent;-webkit-text-stroke:1px var(--hairline);text-align:center;user-select:none;transform:translateY(.12em)}.wordmark[data-astro-cid-gcn2mc3v]:before{content:attr(data-text)}:root{--paper: #ffffff;--paper-2: #f5f6f8;--ink: #1a1c22;--ink-2: #4f5866;--line: #e5e8ee;--hairline: #c9ced9;--card-bg: #ffffff;--shadow: 0 1px 2px rgba(16, 24, 40, .05);--shadow-hover: 0 4px 14px rgba(16, 24, 40, .1);--accent: #0099ab;--accent-strong: #007c8c;--accent-deep: #00626e;--on-accent: #ffffff;--acc-red: var(--accent);--acc-red-dark: var(--accent-strong);--font-sans: -apple-system, "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic Medium", "Yu Gothic", "Meiryo", sans-serif;--font-serif: var(--font-sans);--font-display: "Segoe UI", "Helvetica Neue", Arial, var(--font-sans);--hdr-h: 64px;--wrap: 1180px;--wrap-narrow: 680px;--gap: 24px;--radius: 12px;--radius-sm: 8px;--fs-display: clamp(2rem, 1.2rem + 3.6vw, 3.9rem);--fs-h1: clamp(1.75rem, 1.2rem + 2.2vw, 2.75rem);--fs-h2: clamp(1.3rem, 1.1rem + .8vw, 1.65rem);--fs-label: .72rem;--ease-out: cubic-bezier(.22, .8, .24, 1);--ease-in-out: cubic-bezier(.65, 0, .35, 1);--dur-1: .18s;--dur-2: .42s;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}body{margin:0;padding-top:var(--hdr-h);background:var(--paper);color:var(--ink);font-family:var(--font-sans);font-size:16px;line-height:1.9;letter-spacing:.01em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;line-break:strict;font-kerning:normal}::selection{background:var(--accent-strong);color:var(--on-accent)}body{word-break:auto-phrase;overflow-wrap:anywhere}.nw{white-space:nowrap}p,li,dd{text-wrap:pretty}a{color:inherit}img{max-width:100%;height:auto;display:block}h1,h2,h3,h4{font-family:var(--font-sans);font-weight:700;letter-spacing:.01em;font-feature-settings:"palt";word-break:auto-phrase;text-wrap:balance}.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(20px,5vw,48px)}.wrap-narrow{max-width:var(--wrap-narrow);margin-inline:auto;padding-inline:clamp(20px,5vw,24px)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr));gap:var(--gap);border:none}.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border:1px solid var(--line);border-radius:999px;background:var(--paper);color:var(--ink);font-size:.82rem;text-decoration:none;white-space:nowrap;transition:background .15s,color .15s,border-color .15s}.chip:hover{border-color:var(--accent);color:var(--accent-strong)}.chip[aria-current=true],.chip[aria-current=page],.chip[aria-pressed=true]{background:var(--accent-strong);border-color:var(--accent-strong);color:var(--on-accent)}@media(max-width:640px){.chips{flex-wrap:nowrap!important;overflow-x:auto;scrollbar-width:none;margin-inline:calc(-1*clamp(20px,5vw,48px));padding-inline:clamp(20px,5vw,48px);padding-block:2px;mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 28px),transparent 100%)}.chips::-webkit-scrollbar{display:none}}.section-head{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"en en" "h2 all";align-items:end;column-gap:20px;row-gap:6px;margin:0 0 28px;padding-bottom:16px;border-bottom:1px solid var(--ink)}.section-head h2{grid-area:h2;font-size:var(--fs-h2);line-height:1.35;letter-spacing:.02em;margin:0}.section-head .en{grid-area:en;display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);color:var(--accent-strong);font-size:var(--fs-label);font-weight:600;letter-spacing:.2em;text-transform:uppercase}.section-head .en:before{content:"";width:18px;height:2px;background:var(--accent)}.section-head>a:last-child:not(:first-child){grid-area:all}.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;letter-spacing:.02em;color:var(--ink);text-decoration:none;white-space:nowrap}.arrow-link:after{content:"→";font-family:var(--font-display);transition:transform var(--dur-1) var(--ease-out)}.arrow-link:hover{color:var(--accent-strong)}.arrow-link:hover:after{transform:translate(4px)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:13px 28px;border:1px solid var(--accent-strong);border-radius:999px;background:var(--accent-strong);color:var(--on-accent);font-family:var(--font-sans);font-weight:600;font-size:.9rem;letter-spacing:.02em;text-decoration:none;cursor:pointer;transition:background var(--dur-1),color var(--dur-1),border-color var(--dur-1),transform var(--dur-1) var(--ease-out)}.btn:hover{background:var(--accent-deep);border-color:var(--accent-deep)}.btn:active{transform:scale(.98)}.btn.ghost{background:var(--paper);border-color:var(--hairline);color:var(--ink)}.btn.ghost:hover{border-color:var(--ink);background:var(--paper);color:var(--ink)}.page-en,.head-sec>.en{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);color:var(--accent-strong);font-size:var(--fs-label);font-weight:600;letter-spacing:.2em;text-transform:uppercase;margin:0 0 14px}.page-en:before,.head-sec>.en:before{content:"";width:18px;height:2px;background:var(--accent)}.head-sec{padding-block:clamp(32px,5vw,56px) 36px}.head-sec h1{font-size:var(--fs-h1);line-height:1.35;letter-spacing:.01em;margin:0 0 16px}@supports (animation-timeline: view()){@media(prefers-reduced-motion:no-preference){.acard,.store,.scard,.reveal{animation:rise-in linear both;animation-timeline:view();animation-range:entry 0% entry 36%}}}@keyframes rise-in{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:no-preference){@view-transition{navigation:auto}}::view-transition-old(root){animation:vt-out .2s var(--ease-in-out) both}::view-transition-new(root){animation:vt-in .38s var(--ease-out) both}@keyframes vt-out{to{opacity:0}}@keyframes vt-in{0%{opacity:0;transform:translateY(10px)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}mark{background:#d6f2f5;color:inherit;padding:0 1px}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.skip-link{position:fixed;top:8px;left:8px;z-index:200;padding:10px 18px;background:var(--ink);color:var(--paper);border-radius:var(--radius-sm);font-size:.85rem;text-decoration:none;transform:translateY(calc(-100% - 16px))}.skip-link:focus{transform:none}:target{animation:target-hint 1.6s ease-out 1}@keyframes target-hint{0%{background-color:#d6f2f5}to{background-color:transparent}}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}