:root{--color-text:#172b42;--color-muted:#50637a;--color-primary:#145db3;--color-background:#f5f8fc;--color-border:#d4dfec;--font-body:system-ui, -apple-system, "Hiragino Sans", "Yu Gothic", sans-serif;--space-section:4rem;--radius:12px}*{box-sizing:border-box}body{color:var(--color-text);background:var(--color-background);font-family:var(--font-body);margin:0;line-height:1.85}a{color:var(--color-primary);text-underline-offset:4px}img{max-width:100%;height:auto}h1,h2,h3{line-height:1.4}h1{font-size:clamp(2rem,5vw,3.5rem)}.container{max-width:1080px;margin:auto;padding:0 24px}.site-header{border-bottom:1px solid var(--color-border);background:#fff}.site-header .container{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:20px;padding-bottom:20px;display:flex}.brand{color:var(--color-text);font-size:22px;font-weight:750;text-decoration:none}nav{flex-wrap:wrap;gap:20px;display:flex}main{min-height:65vh;padding:48px 0 72px}.hero{padding:48px 0}.lead{max-width:700px;font-size:1.2rem}.notice{border-left:4px solid var(--color-primary);background:#e7f0fc;padding:12px 20px}.grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;display:grid}.card{border:1px solid var(--color-border);border-radius:var(--radius);background:#fff;padding:24px}.card h2{font-size:1.3rem}.muted,time{color:var(--color-muted)}.button,button{background:var(--color-primary);color:#fff;font:inherit;cursor:pointer;border:0;border-radius:6px;padding:12px 24px;text-decoration:none;display:inline-block}button:disabled{opacity:.6;cursor:wait}.pagination{margin-top:32px}.article{border:1px solid var(--color-border);border-radius:var(--radius);background:#fff;max-width:760px;margin:auto;padding:32px}.article table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}.article td,.article th{border:1px solid var(--color-border);padding:10px}.article pre{background:#edf2f8;padding:20px;overflow-x:auto}.breadcrumbs{flex-wrap:wrap;gap:12px;padding:0;list-style:none;display:flex}.taxonomy{flex-wrap:wrap;gap:10px;display:flex}.site-footer{color:#fff;background:#122440;padding:32px 0}.site-footer a{color:#cbe1ff}label{margin:20px 0 6px;font-weight:600;display:block}input,textarea{font:inherit;background:#fff;border:1px solid #8097ae;border-radius:5px;width:100%;padding:10px}input[type=checkbox]{width:auto}.contact-form{max-width:680px}.honeypot{width:1px;height:1px;position:absolute;left:-10000px;overflow:hidden}.skip-link{z-index:10;background:#fff;padding:12px;position:absolute;top:-80px;left:16px}.skip-link:focus{top:12px}:focus-visible{outline-offset:4px;outline:3px solid #ee9e26}.form-status{white-space:pre-line;padding:16px 0}@media (width<=600px){.container{padding:0 16px}.article{padding:20px}main{padding-top:32px}nav{gap:12px}.hero{padding:20px 0}}