:root{--primary:#1e5fae;--ink:#22282c;--muted:#5d6870;--border:#e1e6ea;--bg:#f7f9fa;color:var(--ink);background:var(--bg);font-family:Inter,Noto Sans JP,system-ui,sans-serif}body{margin:0}main{max-width:920px;margin:auto;padding:72px 28px}.badge{background:var(--primary);color:#fff;border-radius:8px;padding:8px 12px;font-weight:800;display:inline-block}h1{margin-top:32px;font-size:38px}p{color:var(--muted)}section{border:1px solid var(--border);background:#fff;border-radius:14px;margin-top:40px;padding:24px}section h2{margin-top:0;font-size:18px}.error-boundary{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:100vh;display:flex}.error-boundary button{border:1px solid var(--border);background:#fff;border-radius:8px;padding:10px 20px;font-weight:700}