body { font-family: 'Hiragino Sans', 'Noto Sans JP', sans-serif; max-width: 720px; margin: 0 auto; padding: 24px 18px 60px; line-height: 1.8; color: #222; background: #fafafa; }
h1 { font-size: 22px; border-bottom: 3px solid #1e1446; padding-bottom: 6px; }
h2 { font-size: 16px; margin-top: 28px; }
.note { background: #fff3cd; padding: 10px 14px; font-size: 13px; }