:root{--bg:#f7f7f5;--fg:#1d1d1f;--muted:#6b6b70;--card:#fff;--line:#e2e2e0;--accent:#1f6feb;--ok:#1a7f37;--ng:#c62828}@media (prefers-color-scheme:dark){:root{--bg:#141416;--fg:#ececee;--muted:#a0a0a8;--card:#1e1e22;--line:#333338;--accent:#5b9bff;--ok:#4cc26a;--ng:#ff6b6b}}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);margin:0;font-family:Hiragino Sans,Noto Sans JP,Yu Gothic UI,sans-serif;line-height:1.7}a{color:var(--accent)}.header,.main,.footer{max-width:720px;margin:0 auto;padding:12px 16px}.header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.header nav{gap:16px;display:flex}.logo{color:var(--fg);font-weight:700;text-decoration:none}.footer{color:var(--muted);padding-bottom:32px;font-size:14px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:16px 0;padding:20px}.muted{color:var(--muted)}.small{font-size:14px}.statement{margin:12px 0 20px;font-size:18px}.row{flex-wrap:wrap;gap:12px;display:flex}.answer{border:2px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer;border-radius:12px;flex:1;padding:16px;font-size:32px}.answer:hover{border-color:var(--accent)}.confidence{color:var(--muted);gap:20px;margin-bottom:12px;display:flex}.button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:10px 18px;font-size:16px;text-decoration:none;display:inline-block}.button.secondary{color:var(--accent);border:1px solid var(--accent);background:0 0}.result .ok{color:var(--ok);font-size:20px;font-weight:700}.result .ng{color:var(--ng);font-size:20px;font-weight:700}.point{background:var(--bg);border-left:4px solid var(--accent);padding:8px 12px}audio{width:100%;margin:8px 0}ul.list{padding-left:20px}table{border-collapse:collapse;width:100%}td,th{border-bottom:1px solid var(--line);text-align:left;padding:8px 4px}