:root{
  --bg:#f6f7f9;
  --card:#ffffff;                                                                                                         --text:#1f2937;
  --muted:#6b7280;
  --primary:#2563eb;

  --level-normal:#10b981;   /* 绿 */                                                                                      --level-mild:#f59e0b;     /* 黄 */
  --level-moderate:#fb923c; /* 橙 */                                                                                      --level-high:#ef4444;     /* 红 */
}                                                                                                                       *{box-sizing:border-box;}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Seg>.container{max-width:980px;margin:24px auto;padding:0 16px;}
.container.narrow{max-width:720px}
.center{text-align:center}

.hero{background:#324638;color:#fff;padding:36px 16px;text-align:center}
.hero h1{margin:0 0 8px 0}
.hero .sub{opacity:.9;margin:0}

.card{background:var(--card);border-radius:12px;padding:16px 16px;margin:16px 0;box-shadow:0 6px 16px rgba(0,0,0,.04)}
.card h2,.card h3{margin-top:4px}

.note{color:var(--text);padding:12px 0}                                                                                 
.muted{color:var(--muted)}
.small{font-size:.92rem}

.btn{display:inline-block;padding:10px 18px;border-radius:10px;background:var(--primary);color:#fff;text-decoration:non>.btn.ghost{background:#fff;border:1px solid #e5e7eb;color:var(--text)}
                                                                                                                        code{display:inline-block;background:#111827;color:#f9fafb;padding:6px 10px;border-radius:6px}

.progress{height:8px;background:#e5e7eb;border-radius:999px;margin:10px 0 6px}
.progress .bar{height:100%;border-radius:999px;background:var(--primary)}

.status{font-size:.92rem;color:var(--muted);margin-bottom:6px}

.q-title{text-align:center;margin:12px 0 8px}

.option{display:block;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:14px 12px;margin:10px 0;curso>.option:hover{border-color:#d1d5db}
.option input{margin-right:8px}

.nav{margin-top:10px;display:flex;gap:10px}

table.nice{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border-radius:12px}
table.nice thead th{background:#f3f4f6;padding:12px 10px;text-align:left;border-bottom:1px solid #e5e7eb}
table.nice tbody td{padding:12px 10px;border-bottom:1px solid #f1f5f9;background:#fff}
table.nice tbody tr:nth-child(odd) td{background:#fcfcfd}

.badge{display:inline-block;padding:4px 10px;border-radius:999px;color:#fff;font-size:.88rem}
.pos-good{background:var(--level-normal)}
.pos-bad{background:var(--level-high)}
.level-normal{background:var(--level-normal)}
.level-mild{background:var(--level-mild)}
.level-moderate{background:var(--level-moderate)}
.level-high{background:var(--level-high)}

.meter{margin:12px 0}
.meter .label{margin-bottom:6px;color:var(--muted);font-size:.95rem}
.barline{height:10px;background:#eceff3;border-radius:999px;overflow:hidden}
.barline .bar{height:10px;border-radius:999px}

.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.panel{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:12px}
.panel-hd{margin-bottom:6px}
.panel-bd{color:var(--text)}

@media (max-width:720px){
  .grid{grid-template-columns:1fr}
}