:root{color-scheme:light;--color-paper:#f4f1ea;--color-ink:#181a1f;--color-seal:#ba3329;--color-ink-strong:#181a1f;--color-ink-muted:#2a2d34;--color-ink-subtle:#4a4e57;--color-surface-raised:#fdfcf9;--color-surface:#fbfaf6;--color-surface-sunken:#ece8df;--color-surface-deep:#e3ded2;--color-line:#d9d3c5;--color-line-strong:#c9c2b1;--color-line-ink:var(--color-ink);--color-seal-hover:#c9463b;--color-seal-deep:#992a21;--color-seal-wash:rgba(186,51,41,0.09);--color-on-seal:#ffffff;--color-chrome:#14161a;--color-chrome-text:#f4f1ea;--color-chrome-text-muted:#9aa0a8;--color-chrome-line:rgba(244,241,234,0.14);--color-chrome-hover:rgba(244,241,234,0.06);--color-red-fg:#8e2320;--color-red-bg:#f2d7d4;--color-red-line:#d89b95;--color-yellow-fg:#6d5310;--color-yellow-bg:#f2e3b8;--color-yellow-line:#d9c37e;--color-ok-fg:#1e5c43;--color-ok-bg:#e2ede5;--color-ok-line:#9dc4ae;--color-focus:#1f4f8f;--focus-ring:2px solid var(--color-focus);--focus-offset:2px;--font-display:var(--font-display-family),system-ui,sans-serif;--font-sans:var(--font-sans-family),system-ui,sans-serif;--font-mono:var(--font-mono-family),ui-monospace,"SF Mono",monospace;--font-jp:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic Medium","Yu Gothic",Meiryo,"Noto Sans JP",sans-serif;--fs-3xs:0.625rem;--fs-2xs:0.6875rem;--fs-xs:0.75rem;--fs-sm:0.8125rem;--fs-base:0.875rem;--fs-md:1rem;--fs-lg:1.1875rem;--fs-xl:1.4375rem;--fs-2xl:2rem;--fw-regular:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--fw-black:900;--lh-tight:1.15;--lh-snug:1.35;--lh-normal:1.55;--lh-relaxed:1.7;--ls-tight:-0.01em;--ls-normal:0;--ls-wide:0.06em;--ls-eyebrow:0.15em;--sp-0:0;--sp-1:0.25rem;--sp-2:0.5rem;--sp-3:0.75rem;--sp-4:1rem;--sp-5:1.25rem;--sp-6:1.5rem;--sp-8:2rem;--sp-10:2.5rem;--sp-12:3rem;--sp-16:4rem;--radius-sm:2px;--radius:3px;--radius-md:5px;--radius-pill:999px;--shadow-sm:0 1px 2px rgba(24,26,31,0.06);--shadow:0 1px 2px rgba(24,26,31,0.08),0 4px 14px rgba(24,26,31,0.06);--shadow-pop:0 12px 32px rgba(24,26,31,0.2);--topbar-height:52px;--nav-rail-width:208px;--ease:cubic-bezier(0.2,0,0.2,1);--duration-fast:120ms;--duration:200ms}@media (prefers-color-scheme:dark){:root{color-scheme:dark;--color-paper:#17181c;--color-ink:#eceadf;--color-ink-strong:#eceadf;--color-ink-muted:#c9c6ba;--color-ink-subtle:#9b988d;--color-surface-raised:#23252a;--color-surface:#1e2024;--color-surface-sunken:#191b1f;--color-surface-deep:#131519;--color-line:#32353b;--color-line-strong:#43464e;--color-line-ink:var(--color-ink-subtle);--color-seal:#d9564b;--color-seal-hover:#e26b60;--color-seal-wash:rgba(217,86,75,0.14);--color-red-fg:#f0a49d;--color-red-bg:#3a1e1c;--color-red-line:#6d332e;--color-yellow-fg:#e8d9a0;--color-yellow-bg:#332c18;--color-yellow-line:#5f5127;--color-ok-fg:#9fd4bb;--color-ok-bg:#172c24;--color-ok-line:#2c5645;--color-focus:#8ab4f8;--shadow-sm:0 1px 2px rgba(0,0,0,0.4);--shadow:0 1px 2px rgba(0,0,0,0.4),0 4px 14px rgba(0,0,0,0.3);--shadow-pop:0 12px 32px rgba(0,0,0,0.5)}}*,:after,:before{box-sizing:border-box}*{margin:0;padding:0}html{-webkit-text-size-adjust:100%}body,html{height:100%}body{background:var(--color-paper);color:var(--color-ink-strong);font-family:var(--font-sans);font-size:var(--fs-base);line-height:var(--lh-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:var(--fw-bold);line-height:var(--lh-tight);letter-spacing:var(--ls-tight)}button,input,select,textarea{font:inherit;color:inherit}button{background:none;border:none;cursor:pointer}a{color:inherit;text-decoration:none}ol,ul{list-style:none}canvas,img,svg,video{display:block;max-width:100%}table{border-collapse:collapse;border-spacing:0}code,kbd,pre,samp{font-family:var(--font-mono);font-size:.9em}::selection{background:var(--color-seal);color:var(--color-on-seal)}:focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-offset);border-radius:var(--radius-sm)}:focus:not(:focus-visible){outline:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;-webkit-clip-path:inset(50%);clip-path:inset(50%);white-space:nowrap;border:0}.skip-link{position:absolute;left:var(--sp-2);top:var(--sp-2);z-index:100;padding:var(--sp-2) var(--sp-4);background:var(--color-seal);color:var(--color-on-seal);font-family:var(--font-display);font-weight:var(--fw-bold);font-size:var(--fs-sm);border-radius:var(--radius);transform:translateY(-200%)}.skip-link:focus{transform:none}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media print{body,html{height:auto;background:#fff;color:#000}.no-print{display:none!important}}