:root{
  --bg:#f4f6f8;--card:#fff;--text:#17202a;--muted:#667085;--line:#d9dee5;
  --primary:#1457d9;--primary-dark:#0c3fa6;--success:#157347;--danger:#b42318;
  --radius:16px;--shadow:0 8px 28px rgba(16,24,40,.08)
}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;background:var(--bg);color:var(--text);line-height:1.7}.container{width:min(960px,calc(100% - 32px));margin:auto}.site-header{background:#101828;color:#fff;padding:28px 0}.site-header.compact{padding:18px 0}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}.eyebrow{margin:0 0 4px;font-size:.8rem;letter-spacing:.12em;color:#98a2b3}.site-header h1{margin:0;font-size:clamp(1.6rem,4vw,2.3rem)}.text-link,.brand-link{color:#fff;text-decoration:none}.main-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;padding:28px 0}.hero-card{grid-column:1/-1}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.card h2,.card h1{margin-top:0}.badge{display:inline-block;padding:5px 10px;border-radius:999px;background:#e8efff;color:#1849a9;font-size:.85rem}.notice{padding:12px 14px;background:#fff4e5;border-left:4px solid #f79009;border-radius:8px}.form-stack{display:grid;gap:16px}.form-stack label{display:grid;gap:6px;font-weight:600}.form-stack select,.answer-input{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fff;font:inherit}.check-row{display:flex!important;align-items:center;gap:8px}.primary-button,.secondary-button,.ghost-button{appearance:none;border:0;border-radius:10px;padding:12px 16px;font-weight:700;font-size:1rem;cursor:pointer}.primary-button{background:var(--primary);color:#fff}.primary-button:hover{background:var(--primary-dark)}.secondary-button{background:#e8efff;color:#1849a9}.ghost-button{background:#fff;border:1px solid var(--line);color:var(--text)}.button-link{text-decoration:none;display:inline-block}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stats-grid div{text-align:center;background:#f8fafc;border-radius:12px;padding:14px}.stats-grid span{display:block;font-size:1.5rem;font-weight:800}.stats-grid small{color:var(--muted)}.site-footer{padding:24px 0;color:var(--muted);font-size:.9rem}.quiz-layout,.result-layout,.legal-page{padding:28px 0}.quiz-card{max-width:800px;margin:auto}.question-meta{display:flex;justify-content:space-between;gap:12px;align-items:center}.article-text{color:var(--muted);font-size:.9rem}.question-title{font-size:clamp(1.25rem,3vw,1.7rem);margin:22px 0}.answer-area{display:grid;gap:12px}.choice{display:flex;gap:10px;align-items:flex-start;padding:13px;border:1px solid var(--line);border-radius:10px;cursor:pointer}.choice:hover{background:#f8fafc}.feedback{margin-top:20px;padding:18px;border-radius:12px}.feedback.correct{background:#ecfdf3;border:1px solid #abefc6}.feedback.incorrect{background:#fef3f2;border:1px solid #fecdca}.feedback h2{margin:0 0 8px}.feedback p{margin:8px 0}.hidden{display:none!important}.progress-text{font-weight:700}.result-card{max-width:700px;margin:auto;text-align:center}.result-score{margin:20px auto;display:grid;place-items:center;width:180px;height:180px;border-radius:50%;background:#eef4ff}.result-score span{font-size:2rem;font-weight:800}.result-score small{font-size:1.1rem;color:var(--muted)}.category-results{text-align:left;margin-top:24px}.category-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line)}.legal-page ul{padding-left:1.2rem}@media(max-width:720px){.main-grid{grid-template-columns:1fr}.header-inner{align-items:flex-start}.question-meta{align-items:flex-start;flex-direction:column}.stats-grid{grid-template-columns:1fr}.button-row>*{width:100%;text-align:center}}