@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@100..900&display=swap');@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');:root{--background:#fff;--foreground:#000;--muted:#f1f5f9;--muted-foreground:#64748b;--popover:#fff;--popover-foreground:#000;--card:#fff;--card-foreground:#000;--border:#e2e8f0;--input:#e2e8f0;--primary:#000;--primary-foreground:#fff;--secondary:#f1f5f9;--secondary-foreground:#000;--accent:#f1f5f9;--accent-foreground:#000;--destructive:#ef4444;--destructive-foreground:#fff;--ring:#94a3b8;--radius:.5rem}.dark-mode{--background:#09090b;--foreground:#fff;--muted:#27272a;--muted-foreground:#94a3b8;--popover:#000;--popover-foreground:#fff;--card:#000;--card-foreground:#fff;--border:#27272a;--input:#27272a;--primary:#fff;--primary-foreground:#000;--secondary:#27272a;--secondary-foreground:#fff;--accent:#27272a;--accent-foreground:#fff;--destructive:#7f1d1d;--destructive-foreground:#fff;--ring:#27272a}body{color-scheme:light dark}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Inter','Noto Sans JP',sans-serif;background-color:var(--background);color:var(--foreground);line-height:1.5;padding:1rem}h1,h2,h3,h4,h5,h6{margin-bottom:.5em;font-weight:700}h1{font-size:32px}h2{font-size:28px}h3{font-size:24px}h4{font-size:20px}h5{font-size:16px}h6{font-size:14px}p{margin-bottom:1em}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}ul,ol{margin-bottom:1em;padding-left:1.5em}header,main{max-width:800px;margin:0 auto}header{margin-bottom:2rem}header h1{font-size:2rem}nav ul{list-style:none;padding:0;display:flex;gap:1rem}section{margin-bottom:2rem}form{display:flex;flex-direction:column;gap:1rem}input,select,textarea{font-weight:500;font:inherit;padding:.5rem;border:1px solid var(--border);border-radius:var(--radius);background-color:var(--background);color:var(--foreground);font-size:.875rem}input[type='submit'],button{font:inherit;cursor:pointer;font-size:.875rem;font-weight:500;padding:.5rem 1rem;background-color:var(--primary);color:var(--primary-foreground);border:0;border-radius:var(--radius);transition:background-color .2s ease-in-out}input[type='submit']:hover,button:hover{background-color:color-mix(in srgb,var(--primary)90%,transparent)}fieldset{border:1px solid var(--border);border-radius:var(--radius);padding:1rem}legend{padding:0 .5rem}label{display:block;margin-bottom:.5rem}small{color:var(--muted-foreground)}figure{margin-bottom:1rem;overflow:hidden}img{max-width:100%;height:auto;border-radius:var(--radius)}figcaption{font-size:.875rem;margin-top:.5rem;color:var(--muted-foreground)}blockquote{border-left:4px solid var(--border);padding-left:1rem;font-style:italic}[type='checkbox'],[type='radio']{margin-right:.5rem}progress{width:100%}dialog{background-color:var(--background);color:var(--foreground);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%)}dialog::backdrop{background-color:rgba(0,0,0,.5)}details{border:1px solid var(--border);border-radius:var(--radius);padding:.5rem;margin-bottom:1rem}summary{cursor:pointer;font-weight:bold}article{border:1px solid var(--border);border-radius:var(--radius);padding:1rem;margin-bottom:1rem}footer{margin-top:2rem;text-align:center;color:var(--muted-foreground)}[aria-busy='true']{opacity:.7;cursor:progress}@media(max-width:600px){body{padding:.5rem}nav ul{flex-direction:column}}