:root{--color-primary:#0d0d0d;--color-surface:#fff;--color-muted:#7a7f83;--color-border:#e5e7eb;--color-bg-sub:#f9fafb;--color-accent:#294796;--color-accent-muted:rgba(41,71,150,.1);--font-sans:"Noto Sans JP","Noto Sans",system-ui,sans-serif;--font-serif:"Noto Serif JP","Noto Serif","Georgia","Times New Roman",serif;--container-max:1280px;--container-px:2.5rem}*,:after,:before{box-sizing:border-box}html{background:var(--color-surface);color:var(--color-primary);font-family:var(--font-serif)}h1,h2,h3,h4,h5,h6{font-family:var(--font-sans)}body{margin:0}code,kbd,pre,samp{font-family:ui-monospace,Cascadia Code,Source Code Pro,Menlo,Consolas,monospace}button,input,select,textarea{font-family:var(--font-sans)}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}.container-main{margin:0 auto;padding:0 var(--container-px)}.prose-content{color:var(--color-primary);line-height:1.8;text-align:justify}.prose-content h1,.prose-content h2,.prose-content h3,.prose-content h4,.prose-content h5,.prose-content h6{color:#2e3338;font-family:var(--font-sans);font-weight:700;line-height:1.3;margin-bottom:.75em;margin-top:2em}.prose-content h1{font-size:2rem}.prose-content h2{font-size:1.5rem}.prose-content h3{font-size:1.25rem}.prose-content p{margin-bottom:1.25em;margin-top:0}.prose-content ol,.prose-content ul{margin-bottom:1.25em;padding-left:1.5em}.prose-content li{margin-bottom:.4em}.prose-content a{color:var(--color-accent);text-decoration:underline}.prose-content code{background:var(--color-bg-sub);border-radius:4px;font-family:ui-monospace,Cascadia Code,Source Code Pro,Menlo,Consolas,monospace;font-size:.875em;padding:.15em .4em}.prose-content pre{background:#1e1e1e;border-radius:8px;color:#d4d4d4;margin-bottom:1.5em;overflow-x:auto;padding:1.25rem}.prose-content pre code{background:none;font-size:.875rem;padding:0}.prose-content blockquote{border-left:4px solid var(--color-accent);color:var(--color-muted);margin:1.5em 0;padding-left:1rem}.prose-content img{border-radius:8px;margin:1.5em 0;max-width:100%}.prose-content hr{border:none;border-top:1px solid var(--color-border);margin:2em 0}.font-sans{font-family:var(--font-sans)}.font-serif{font-family:var(--font-serif)}.error[data-v-719d12fe]{padding-bottom:8rem;padding-top:8rem;text-align:center}.error__code[data-v-719d12fe]{color:#f3f4f6;font-size:6rem;line-height:1}.error__code[data-v-719d12fe],.error__heading[data-v-719d12fe]{font-weight:700;margin:0 0 1rem}.error__heading[data-v-719d12fe]{font-size:1.5rem}.error__message[data-v-719d12fe]{color:var(--color-muted);margin:0 0 2rem}.error__btn[data-v-719d12fe]{background:var(--color-accent);border:none;color:#fff;cursor:pointer;display:inline-block;font-size:1rem;font-weight:500;padding:.75rem 2rem;transition:background .15s}.error__btn[data-v-719d12fe]:hover{background:#1e3470}