.brand-logo[data-astro-cid-uivuhh7y]{flex-shrink:0;display:inline-block}.brand-logo--lockup[data-astro-cid-uivuhh7y]{align-items:center;gap:var(--brand-logo-gap);display:inline-flex}.brand-logo__mark[data-astro-cid-uivuhh7y]{flex-shrink:0}.brand-logo__wordmark[data-astro-cid-uivuhh7y]{color:var(--brand-logo-text-color);font-family:"Inter", var(--chabit-font-sans,sans-serif);font-size:var(--brand-logo-text-size);letter-spacing:0;white-space:nowrap;font-weight:700;line-height:1}.header[data-astro-cid-nen7h5rs]{z-index:50;height:var(--header-height);background-color:color-mix(in srgb, var(--color-white) 82%, transparent);-webkit-backdrop-filter:blur(14px)saturate(1.4);border-bottom:1px solid color-mix(in srgb, var(--color-border) 70%, transparent);transition:border-color var(--transition), background-color var(--transition);position:fixed;top:0;left:0;right:0}.header__inner[data-astro-cid-nen7h5rs]{align-items:center;gap:2rem;height:100%;display:flex}.header__logo[data-astro-cid-nen7h5rs]{flex-shrink:0;align-items:center;text-decoration:none;display:inline-flex}.header__nav[data-astro-cid-nen7h5rs]{margin-left:auto;display:none}.header__nav-list[data-astro-cid-nen7h5rs]{align-items:center;gap:2rem;display:flex}.header__nav-link[data-astro-cid-nen7h5rs]{font-size:var(--font-size-sm);font-weight:var(--weight-normal);color:var(--color-body);white-space:nowrap;transition:color var(--transition);text-decoration:none;position:relative}.header__nav-link[data-astro-cid-nen7h5rs]:after{content:"";background-color:var(--color-accent);transform-origin:0;height:1px;transition:transform var(--transition);position:absolute;bottom:-.4rem;left:0;right:0;transform:scaleX(0)}.header__nav-link[data-astro-cid-nen7h5rs]:hover{color:var(--color-ink)}.header__nav-link[data-astro-cid-nen7h5rs]:hover:after{transform:scaleX(1)}.header__nav-cta-item[data-astro-cid-nen7h5rs]{margin-left:.5rem}.header__cta[data-astro-cid-nen7h5rs]{font-size:var(--font-size-sm);flex-shrink:0;padding:.5rem 1.1rem}.header__cta--mobile[data-astro-cid-nen7h5rs]{display:none}.header__menu-toggle[data-astro-cid-nen7h5rs]{cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;width:2.5rem;height:2.5rem;margin-left:auto;padding:0;display:flex}.header__menu-icon[data-astro-cid-nen7h5rs],.header__menu-icon[data-astro-cid-nen7h5rs]:before,.header__menu-icon[data-astro-cid-nen7h5rs]:after{background-color:var(--color-ink);border-radius:1px;width:1.25rem;height:2px;transition:all .25s;display:block;position:relative}.header__menu-icon[data-astro-cid-nen7h5rs]:before,.header__menu-icon[data-astro-cid-nen7h5rs]:after{content:"";position:absolute;left:0}.header__menu-icon[data-astro-cid-nen7h5rs]:before{top:-6px}.header__menu-icon[data-astro-cid-nen7h5rs]:after{top:6px}.header__menu-toggle[data-astro-cid-nen7h5rs][aria-expanded=true] .header__menu-icon[data-astro-cid-nen7h5rs]{background-color:#0000}.header__menu-toggle[data-astro-cid-nen7h5rs][aria-expanded=true] .header__menu-icon[data-astro-cid-nen7h5rs]:before{top:0;transform:rotate(45deg)}.header__menu-toggle[data-astro-cid-nen7h5rs][aria-expanded=true] .header__menu-icon[data-astro-cid-nen7h5rs]:after{top:0;transform:rotate(-45deg)}.header__nav[data-astro-cid-nen7h5rs].is-open{top:var(--header-height);height:calc(100dvh - var(--header-height));background-color:var(--color-white);padding:1.5rem var(--container-px) 2.5rem;z-index:49;overscroll-behavior:contain;animation:header-menu-in var(--chabit-duration-normal) var(--ease-enter) both;flex-direction:column;display:flex;position:fixed;left:0;right:0;overflow-y:auto}@keyframes header-menu-in{0%{opacity:0}to{opacity:1}}.header__nav[data-astro-cid-nen7h5rs].is-open .header__nav-list[data-astro-cid-nen7h5rs]{flex-direction:column;align-items:stretch;gap:0;width:100%}.header__nav[data-astro-cid-nen7h5rs].is-open .header__nav-link[data-astro-cid-nen7h5rs]{font-size:var(--font-size-lg);font-weight:var(--weight-normal);color:var(--color-ink);border-bottom:1px solid var(--color-border);width:100%;padding:1.125rem .25rem;display:block}.header__nav[data-astro-cid-nen7h5rs].is-open .header__nav-link[data-astro-cid-nen7h5rs]:after{display:none}.header__nav[data-astro-cid-nen7h5rs].is-open .header__nav-cta-item[data-astro-cid-nen7h5rs]{margin:1.75rem 0 0}.header__nav[data-astro-cid-nen7h5rs].is-open .header__cta[data-astro-cid-nen7h5rs]{width:100%;font-size:var(--font-size-base);padding:.9375rem 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#1a1a2e1a, 0 4px 6px -4px #1a1a2e14;--chabit-shadow-xl:0 20px 25px -5px #1a1a2e1a, 0 8px 10px -6px #1a1a2e14;--chabit-radius-none:0;--chabit-radius-sm:4px;--chabit-radius-md:8px;--chabit-radius-lg:12px;--chabit-radius-xl:16px;--chabit-radius-full:9999px;--chabit-duration-fast:.1s;--chabit-duration-normal:.2s;--chabit-duration-slow:.3s;--chabit-easing:cubic-bezier(.4, 0, .2, 1);--chabit-z-dropdown:100;--chabit-z-sticky:200;--chabit-z-fixed:300;--chabit-z-drawer:400;--chabit-z-modal:500;--chabit-z-popover:600;--chabit-z-tooltip:700;--chabit-z-toast:800;--chabit-breakpoint-sm:640px;--chabit-breakpoint-md:768px;--chabit-breakpoint-lg:1024px;--chabit-breakpoint-xl:1280px}[data-color-mode=dark]{--chabit-color-text-primary:#f0f0fa;--chabit-color-text-secondary:#b8b8d4;--chabit-color-text-tertiary:#8c8fe3;--chabit-color-text-disabled:#5a5a7a;--chabit-color-text-inverse:#1a1a2e;--chabit-color-text-link:#6b74e8;--chabit-color-bg-primary:#1a1a2e;--chabit-color-bg-secondary:#2a2a46;--chabit-color-bg-tertiary:#3a3a5e;--chabit-color-bg-inverse:#f0f0fa;--chabit-color-border-light:#3a3a5e;--chabit-color-border-default:#5a5a7a;--chabit-color-border-strong:#8c8fe3;--chabit-color-border-focus:#6b74e8;--chabit-color-border-error:#f07080;--chabit-color-link:#6b74e8;--chabit-color-link-hover:#9496ed;--chabit-color-link-visited:#9b7de0;--chabit-color-success-light:#1a3d25;--chabit-color-success:#4ccd6b;--chabit-color-success-dark:#6de08a;--chabit-color-error-light:#3d1a1e;--chabit-color-error:#f07080;--chabit-color-error-dark:#f59099;--chabit-color-warning-light:#3d3000;--chabit-color-warning:#ffd454;--chabit-color-warning-dark:#ffe080;--chabit-color-info-light:#1a1a3d;--chabit-color-info:#6b74e8;--chabit-color-info-dark:#9496ed;--chabit-shadow-sm:0 1px 2px 0 #0000004d;--chabit-shadow-md:0 4px 6px -1px #0006, 0 2px 4px -2px #0000004d;--chabit-shadow-lg:0 10px 15px -3px #0006, 0 4px 6px -4px #0000004d;--chabit-shadow-xl:0 20px 25px -5px #0006, 0 8px 10px -6px #0000004d}@media (prefers-color-scheme:dark){[data-color-mode=system]{--chabit-color-text-primary:#f0f0fa;--chabit-color-text-secondary:#b8b8d4;--chabit-color-text-tertiary:#8c8fe3;--chabit-color-text-disabled:#5a5a7a;--chabit-color-text-inverse:#1a1a2e;--chabit-color-text-link:#6b74e8;--chabit-color-bg-primary:#1a1a2e;--chabit-color-bg-secondary:#2a2a46;--chabit-color-bg-tertiary:#3a3a5e;--chabit-color-bg-inverse:#f0f0fa;--chabit-color-border-light:#3a3a5e;--chabit-color-border-default:#5a5a7a;--chabit-color-border-strong:#8c8fe3;--chabit-color-border-focus:#6b74e8;--chabit-color-border-error:#f07080;--chabit-color-link:#6b74e8;--chabit-color-link-hover:#9496ed;--chabit-color-link-visited:#9b7de0;--chabit-color-success-light:#1a3d25;--chabit-color-success:#4ccd6b;--chabit-color-success-dark:#6de08a;--chabit-color-error-light:#3d1a1e;--chabit-color-error:#f07080;--chabit-color-error-dark:#f59099;--chabit-color-warning-light:#3d3000;--chabit-color-warning:#ffd454;--chabit-color-warning-dark:#ffe080;--chabit-color-info-light:#1a1a3d;--chabit-color-info:#6b74e8;--chabit-color-info-dark:#9496ed;--chabit-shadow-sm:0 1px 2px 0 #0000004d;--chabit-shadow-md:0 4px 6px -1px #0006, 0 2px 4px -2px #0000004d;--chabit-shadow-lg:0 10px 15px -3px #0006, 0 4px 6px -4px #0000004d;--chabit-shadow-xl:0 20px 25px -5px #0006, 0 8px 10px -6px #0000004d}}:root{--color-ink:#0f172a;--color-body:#475569;--color-caption:#64748b;--color-border-ink:#e2e8f0;--color-surface-ink:#f8fafc;--color-strong:#cbd5e1;--color-white:var(--chabit-color-neutral-0);--color-bg:var(--color-surface-ink);--color-bg-alt:var(--color-surface-ink);--color-text:var(--color-ink);--color-text-secondary:var(--color-body);--color-text-tertiary:var(--color-caption);--color-border:var(--color-border-ink);--color-border-light:var(--color-border-ink);--color-border-strong:var(--color-strong);--color-accent:var(--chabit-color-brand-primary);--color-accent-hover:var(--chabit-color-brand-secondary);--color-accent-light:var(--chabit-color-primary-50);--color-accent-text:var(--chabit-color-neutral-0);--font-family:"Inter", "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;--font-mono:var(--chabit-font-mono);--weight-light:300;--weight-normal:400;--weight-medium:500;--font-size-xs:.75rem;--font-size-sm:.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:1.75rem;--font-size-4xl:2.25rem;--font-size-5xl:3rem;--font-size-display:clamp(2.5rem, 1.6rem + 3.6vw, 4rem);--tracking-display:-.02em;--tracking-h1:-.02em;--tracking-h2:-.015em;--tracking-h3:-.01em;--tracking-kicker:.16em;--tracking-button:.02em;--leading-display:1.12;--leading-heading:1.32;--leading-body:1.7;--section-py:6rem;--section-py-sm:4rem;--container-max:1120px;--container-px:1.5rem;--fog-1:0 1px 3px color-mix(in srgb, var(--chabit-color-brand-primary) 6%, transparent), 0 1px 2px color-mix(in srgb, var(--chabit-color-neutral-1000) 4%, transparent);--fog-2:0 4px 12px color-mix(in srgb, var(--chabit-color-brand-primary) 8%, transparent), 0 2px 4px color-mix(in srgb, var(--chabit-color-neutral-1000) 4%, transparent);--fog-3:0 12px 32px color-mix(in srgb, var(--chabit-color-brand-primary) 12%, transparent), 0 4px 12px color-mix(in srgb, var(--chabit-color-neutral-1000) 6%, transparent);--fog-4:0 24px 48px -12px color-mix(in srgb, var(--chabit-color-brand-primary) 18%, transparent), 0 12px 24px -8px color-mix(in srgb, var(--chabit-color-neutral-1000) 8%, transparent);--shadow-sm:var(--fog-1);--shadow:var(--fog-1);--shadow-md:var(--fog-2);--shadow-lg:var(--fog-3);--ring-focus:0 0 0 2px var(--chabit-color-neutral-0), 0 0 0 4px var(--chabit-color-brand-primary);--radius-sm:var(--chabit-radius-sm);--radius:6px;--radius-lg:var(--chabit-radius-lg);--radius-xl:var(--chabit-radius-lg);--transition:var(--chabit-duration-normal) var(--chabit-easing);--transition-fast:var(--chabit-duration-fast) var(--chabit-easing);--ease-enter:cubic-bezier(0, 0, .2, 1);--ease-exit:cubic-bezier(.4, 0, 1, 1);--header-height:4.25rem}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-family);font-size:var(--font-size-base);font-weight:var(--weight-normal);line-height:var(--leading-body);color:var(--color-body);background-color:var(--color-white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-feature-settings:"palt" 1, "kern" 1;text-rendering:optimizelegibility}img,svg{max-width:100%;height:auto;display:block}a{color:var(--color-accent);transition:color var(--transition);text-decoration:none}a:hover{color:var(--color-accent-hover)}ul,ol{list-style:none}h1,h2,h3,h4,h5,h6{line-height:var(--leading-heading);font-weight:var(--weight-light);color:var(--color-ink);font-feature-settings:"palt" 1, "kern" 1;text-wrap:balance}p{text-wrap:pretty}h1{letter-spacing:var(--tracking-h1)}h2{letter-spacing:var(--tracking-h2)}h3{letter-spacing:var(--tracking-h3)}.tnum,time{font-feature-settings:"tnum" 1, "palt" 1, "kern" 1}:focus-visible{box-shadow:var(--ring-focus);border-radius:var(--radius-sm);outline:none}a:focus:not(:focus-visible){outline:none}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.container{width:100%;max-width:var(--container-max);padding:0 var(--container-px);margin:0 auto}.section{padding:var(--section-py-sm) 0}.section--alt{background-color:var(--color-bg)}.section--accent-light{background-color:var(--color-accent-light)}.section-header{text-align:center;max-width:720px;margin:0 auto 3.5rem}.section-label{font-family:var(--font-mono);font-size:var(--font-size-xs);font-weight:var(--weight-medium);color:var(--color-accent);letter-spacing:var(--tracking-kicker);text-transform:uppercase;margin-bottom:1rem;display:inline-block}.section-title{font-size:var(--font-size-2xl);font-weight:var(--weight-light);color:var(--color-ink);line-height:var(--leading-heading);letter-spacing:var(--tracking-h2)}.section-subtitle{font-size:var(--font-size-base);color:var(--color-body);font-weight:var(--weight-normal);line-height:var(--leading-body);overflow-wrap:anywhere;margin-top:1rem}@media (width>=768px){.section{padding:var(--section-py) 0}.section-title{font-size:var(--font-size-3xl)}.section-subtitle{font-size:var(--font-size-lg)}}.btn{font-size:var(--font-size-sm);font-weight:var(--weight-medium);font-family:var(--font-family);letter-spacing:var(--tracking-button);border-radius:var(--radius-sm);cursor:pointer;transition:background-color var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition-fast);border:1px solid #0000;justify-content:center;align-items:center;gap:.5rem;padding:.8125rem 1.75rem;line-height:1.2;text-decoration:none;display:inline-flex}.btn:hover{transform:translateY(-1px)}.btn--primary{background-color:var(--color-accent);color:var(--color-accent-text);border-color:var(--color-accent)}.btn--primary:hover{background-color:var(--color-accent-hover);border-color:var(--color-accent-hover);color:var(--color-accent-text);box-shadow:var(--fog-3)}.btn--secondary{color:var(--color-accent);border-color:var(--color-border-strong);background-color:#0000}.btn--secondary:hover{border-color:var(--color-accent);color:var(--color-accent-hover);background-color:var(--color-accent-light)}.btn--large{font-size:var(--font-size-base);padding:.9375rem 2.25rem}.btn--white{background-color:var(--color-white);color:var(--color-ink);border-color:var(--color-white)}.btn--white:hover{background-color:var(--color-surface-ink);border-color:var(--color-surface-ink);color:var(--color-accent)}.btn--ghost-ink{color:var(--color-white);border-color:color-mix(in srgb, var(--color-white) 28%, transparent);background-color:#0000}.btn--ghost-ink:hover{border-color:color-mix(in srgb, var(--color-white) 60%, transparent);color:var(--color-white);background-color:color-mix(in srgb, var(--color-white) 8%, transparent)}.card{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:box-shadow var(--transition), transform var(--transition), border-color var(--transition);padding:1.75rem}.card:hover{box-shadow:var(--fog-3);border-color:color-mix(in srgb, var(--color-accent) 20%, var(--color-border));transform:translateY(-2px)}.card-title{font-size:var(--font-size-lg);font-weight:var(--weight-medium);color:var(--color-ink);line-height:var(--leading-heading);letter-spacing:var(--tracking-h3);overflow-wrap:anywhere;margin-bottom:.625rem}.card-text{color:var(--color-body);font-size:var(--font-size-sm);line-height:var(--leading-body);overflow-wrap:anywhere}@media (width>=768px){.card{padding:2rem}}.grid-2,.grid-3,.grid-4{gap:1.5rem;display:grid}@media (width>=768px){.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);gap:2rem}}@media (width>=1024px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}section[id]{scroll-margin-top:calc(var(--header-height) + 1rem)}.breadcrumb{margin-top:var(--header-height);background-color:var(--color-bg);border-bottom:1px solid var(--color-border);padding:.75rem 0}.breadcrumb__list{max-width:var(--container-max);padding:0 var(--container-px);font-size:var(--font-size-xs);flex-wrap:wrap;align-items:center;gap:.5rem;margin:0 auto;display:flex}.breadcrumb__item{align-items:center;gap:.5rem;display:flex}.breadcrumb__item:not(:last-child):after{content:">";color:var(--color-text-tertiary);font-size:var(--font-size-xs)}.breadcrumb__link{color:var(--color-text-secondary);text-decoration:none}.breadcrumb__link:hover{color:var(--color-accent)}.breadcrumb__current{color:var(--color-body);font-weight:var(--weight-normal)}.breadcrumb+.page-header{margin-top:0}.page-header{background-color:var(--color-bg);border-bottom:1px solid var(--color-border);margin-top:var(--header-height);padding:3.5rem 0}.page-header__title{font-size:var(--font-size-3xl);font-weight:var(--weight-light);color:var(--color-ink);letter-spacing:var(--tracking-h1);margin-bottom:.75rem}.page-header__description{color:var(--color-body);font-size:var(--font-size-base);line-height:var(--leading-body);max-width:60ch}@media (width>=768px){.page-header{padding:5rem 0}.page-header__title{font-size:var(--font-size-4xl)}.page-header__description{font-size:var(--font-size-lg)}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.text-center{text-align:center}.text-accent{color:var(--color-accent)}.kicker{font-family:var(--font-mono);font-size:var(--font-size-xs);font-weight:var(--weight-medium);color:var(--color-accent);letter-spacing:var(--tracking-kicker);text-transform:uppercase}[data-reveal]{opacity:0;transition:opacity .5s var(--ease-enter), transform .5s var(--ease-enter);will-change:opacity, transform;transform:translateY(12px)}[data-reveal].is-revealed{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){[data-reveal]{opacity:1!important;transform:none!important}}