:root{--color-tetsu:#103e48;--color-forest:#155c5c;--color-aomidori:#237e79;--color-byakuroku:#91d4bc;--color-wakaba:#b9e6cd;--color-kinari:#f7f5e9;--color-kinari-deep:#ebe8d6;--color-paper:#fcfbf4;--color-mic:#0a6fd8;--color-speaker:#12855a;--color-hue-1:#12855a;--color-hue-2:#b5471d;--color-hue-3:#7a3fb8;--color-hue-4:#b0246d;--color-hue-5:#0b7a86;--color-hue-6:#8a6d00;--color-ground:var(--color-kinari);--color-surface:var(--color-paper);--color-surface-sunken:var(--color-kinari-deep);--color-ink:var(--color-tetsu);--color-ink-muted:#4a6a6e;--color-link:#1b6b67;--color-line:#d9d8c4;--color-line-strong:#b9bca6;--color-night:var(--color-tetsu);--color-night-ink:var(--color-kinari);--color-night-ink-muted:var(--color-wakaba);--color-night-line:#b9e6cd38;--color-night-accent:var(--color-byakuroku);--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;--font-serif-cjk:"Hiragino Mincho ProN", "Hiragino Mincho Pro", YuMincho, "Yu Mincho", "Noto Serif CJK JP", "Noto Serif JP", serif;--font-heading:var(--font-sans);--font-mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--text-xs:.8rem;--text-sm:.889rem;--text-base:1rem;--text-lg:1.25rem;--text-xl:1.563rem;--text-2xl:1.953rem;--text-3xl:2.441rem;--text-hero:clamp(2rem, 4.4vw + .6rem, 3.4rem);--text-glyph:clamp(9rem, 22vw, 19rem);--leading-tight:1.3;--leading-normal:1.75;--weight-normal:400;--weight-medium:500;--weight-semibold:600;--weight-bold:700;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-section:clamp(4rem, 7vw, 6rem);--radius-sm:4px;--radius-md:10px;--radius-pill:999px;--border-thin:1px solid var(--color-line);--measure:36rem;--container:70rem;--container-narrow:46rem;--header-height:64px}
*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--color-night);color:var(--color-ink);font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);margin:0;overflow-x:clip}[lang=ja]{--font-sans:-apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", Meiryo, "Noto Sans JP", sans-serif;--font-heading:var(--font-serif-cjk)}[lang=zh-CN]{--font-sans:-apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif}[lang=zh-TW]{--font-sans:-apple-system, BlinkMacSystemFont, "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif}[lang=ko]{--font-sans:-apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif}[lang=ar],[lang=ur]{--font-sans:-apple-system, BlinkMacSystemFont, "Geeza Pro", "Segoe UI", "Noto Naskh Arabic", "Noto Nastaliq Urdu", sans-serif}[lang=hi]{--font-sans:-apple-system, BlinkMacSystemFont, "Kohinoor Devanagari", "Nirmala UI", "Noto Sans Devanagari", sans-serif}[lang=bn]{--font-sans:-apple-system, BlinkMacSystemFont, "Kohinoor Bangla", "Nirmala UI", "Noto Sans Bengali", sans-serif}h1,h2,h3{font-family:var(--font-heading);font-weight:var(--weight-semibold);line-height:var(--leading-tight);text-wrap:balance;margin:0}[lang=ja] :is(h1,h2){letter-spacing:.04em;word-break:auto-phrase}p,ul,dl,dd{margin:0}a{color:inherit}img,svg{max-width:100%}:focus-visible{outline:2px solid var(--color-aomidori);outline-offset:3px}.container{width:100%;max-width:var(--container);padding-inline:var(--space-6);margin-inline:auto}.container-narrow{width:100%;max-width:var(--container-narrow);padding-inline:var(--space-6);margin-inline:auto}@media (max-width:480px){.container,.container-narrow{padding-inline:var(--space-4)}}.paper{background-color:var(--color-ground);color:var(--color-ink);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='f'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.012 0.09' numOctaves='3' seed='7'/%3E%3CfeColorMatrix values='0 0 0 0 0.06 0 0 0 0 0.24 0 0 0 0 0.28 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23f)'/%3E%3C/svg%3E")}.night{background-color:var(--color-night);color:var(--color-night-ink)}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-delay:0s!important}}