:root{--bg:#000;--fg:#fff;--fg-soft:#d6d6d6;--gray:#9a9a9a;--gray-dim:#6a6a6a;--line:#262626;--surface:#111;--tint:#ffffff0f;--nav-bg:#000000d1;--accent:#ffc53d;--error:#ff6b6b;--error-text:#ff8a8a;--display:var(--font-display), "Avenir Next", "Segoe UI", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", system-ui, sans-serif;--text:var(--font-text), "Avenir Next", "Segoe UI", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", system-ui, sans-serif;--mono:var(--font-mono), ui-monospace, "SF Mono", Menlo, Consolas, monospace;--pad:clamp(20px, 5vw, 72px);--indent:36px;--bracket:10px;--nav-h:60px;--ease-out:cubic-bezier(.2, .8, .2, 1);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}@media (prefers-color-scheme:light){:root:not([data-theme=dark]){--bg:#fff;--fg:#0a0a0a;--fg-soft:#2b2b2b;--gray:#5f5f5f;--gray-dim:#8c8c8c;--line:#e2e2e2;--surface:#f2f2f2;--tint:#0000000d;--nav-bg:#ffffffd9;--accent:#a86300;--error:#d32f2f;--error-text:#c62828;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}}:root[data-theme=light]{--bg:#fff;--fg:#0a0a0a;--fg-soft:#2b2b2b;--gray:#5f5f5f;--gray-dim:#8c8c8c;--line:#e2e2e2;--surface:#f2f2f2;--tint:#0000000d;--nav-bg:#ffffffd9;--accent:#a86300;--error:#d32f2f;--error-text:#c62828;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--fg);font-family:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;font-size:18px;line-height:1.55;overflow-x:clip}a{color:inherit}:focus-visible{outline:2px solid var(--fg);outline-offset:4px}::selection{background:var(--fg);color:var(--bg)}[id]{scroll-margin-top:calc(var(--nav-h) + 16px)}main{display:block}.section-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px 32px;margin-bottom:clamp(36px,5vw,56px);display:flex}.section-head .corner{margin:0}.more-link{font-family:var(--display);color:inherit;border-bottom:2px solid;align-items:center;gap:10px;padding-bottom:4px;font-size:16px;font-weight:700;text-decoration:none;display:inline-flex}.more-link:after{content:"→";transition:transform .2s var(--ease-out)}.more-link:hover:after{transform:translate(4px)}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{top:-100px;left:var(--pad);z-index:100;background:var(--fg);color:var(--bg);font-family:var(--display);padding:10px 16px;font-weight:700;text-decoration:none;position:absolute}.skip-link:focus{top:12px}.section{padding:clamp(72px, 10vw, 140px) var(--pad)}.corner{padding:28px 0 0 var(--indent);font-family:var(--display);letter-spacing:-.01em;margin:0 0 20px;font-size:clamp(40px,6vw,80px);font-weight:900;line-height:1;position:relative}.corner:before{content:"";border-top:var(--bracket) solid currentColor;border-left:var(--bracket) solid currentColor;width:.9em;height:.75em;position:absolute;top:0;left:0}.lead{max-width:44ch;margin:0 0 56px var(--indent);color:var(--gray);font-size:20px}.btn{border:2px solid var(--fg);color:var(--fg);font-family:var(--display);cursor:pointer;background:0 0;padding:14px 24px;font-size:16px;font-weight:700;text-decoration:none;transition:background .15s,color .15s;display:inline-block}.btn:hover,.btn-solid{background:var(--fg);color:var(--bg)}.btn-solid:hover{color:var(--fg);background:0 0}.btn:disabled{opacity:.6;cursor:progress}@supports (animation-timeline:view()){@media (prefers-reduced-motion:no-preference){.reveal{animation:linear both reveal;animation-timeline:view();animation-range:entry entry 240px}}}@keyframes reveal{0%{opacity:0;transform:translateY(28px)}}@media (max-width:520px){:root{--indent:0px}body{font-size:17px}.corner{padding-left:28px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}:lang(ja){word-break:auto-phrase;line-break:strict}:lang(ja) em,:lang(ja) i{font-style:normal}