body { background:#f7f7f7; font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif; margin:0; }
.container { max-width: 900px; margin: 24px auto; padding: 0 16px; }
.card { background:#fff; border-radius:16px; padding:20px; box-shadow: 0 6px 24px rgba(0,0,0,0.06); margin-bottom: 20px; }
h1 { margin: 0 0 8px 0; font-size: 24px; }
h2 { margin: 10px 0; font-size: 20px; }
.actions { display:flex; gap:8px; flex-wrap: wrap; margin-top: 12px; }
button { padding: 10px 14px; border-radius: 10px; border: 1px solid #ddd; background: #fafafa; cursor: pointer; }
button:hover { background: #f0f0f0; }
button.warn { border-color:#c62828; color:#c62828; }
.muted { color:#777; font-size: 14px; }
.header-row { display:flex; justify-content: space-between; align-items: center; }
.option { margin: 8px 0; }
.feedback { margin-top: 8px; font-weight: 600; }
.feedback.ok { color:#2a7a0b; }
.feedback.bad { color:#b31d1d; }
.feedback.na { color:#a66b00; }