.checker{max-width:680px;margin:24px auto 64px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:28px;box-shadow:0 2px 12px #0000000a}.checker h2{font-size:22px;margin:0 0 8px;border:none;padding:0}.checker h3{font-size:17px;margin:24px 0 10px}.checker .muted{color:var(--text-light);font-size:14px}.checker .small{font-size:12px}.checker .back-link{background:transparent;border:none;color:var(--primary);cursor:pointer;font-size:13px;padding:0;margin-bottom:12px}.symptom-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin-top:20px}.symptom-btn{display:flex;flex-direction:column;gap:4px;padding:18px 14px;background:var(--bg-soft);border:1px solid var(--border);border-radius:12px;cursor:pointer;text-align:left;transition:all .15s}.symptom-btn:hover{border-color:var(--primary);background:#fff;transform:translateY(-1px)}.symptom-name{font-weight:700;font-size:16px;color:var(--text)}.symptom-hint{font-size:12px;color:var(--text-light)}.footnote{font-size:12px;color:var(--text-light);margin-top:18px}.redflag-list{display:flex;flex-direction:column;gap:10px;margin:18px 0}.redflag-item{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;cursor:pointer;font-size:14px}.redflag-item input{margin-top:3px;flex-shrink:0}.emergency-box{margin-top:20px;padding:20px;background:var(--emergency-bg);border:2px solid #fca5a5;border-radius:12px}.emergency-box h3{margin:0 0 8px;color:var(--emergency-text)}.emergency-box p{font-size:14px;color:var(--emergency-text);margin:0 0 14px}.agreement-box{margin-top:16px;padding:16px;background:var(--bg-soft);border-radius:10px}.agreement{display:flex;align-items:center;gap:10px;margin:12px 0;font-size:14px;cursor:pointer}.btn-primary,.btn-secondary{display:inline-block;padding:11px 22px;border-radius:8px;border:none;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{opacity:.9}.btn-primary:disabled{background:#cbd5e1;cursor:not-allowed}.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-soft)}.progress{font-size:12px;color:var(--text-light);margin-bottom:8px}.progress-bar{height:4px;background:var(--border);border-radius:2px;margin-top:4px;overflow:hidden}.progress-bar>div{height:100%;background:var(--primary);transition:width .2s}.options{display:flex;flex-direction:column;gap:8px;margin:18px 0 22px}.option-btn{text-align:left;padding:14px 16px;background:#fff;border:1.5px solid var(--border);border-radius:10px;font-size:15px;cursor:pointer;transition:all .12s}.option-btn:hover{border-color:var(--primary)}.option-btn.selected{border-color:var(--primary);background:#eff6ff;color:var(--primary-dark);font-weight:600}.option-btn.multi{display:flex;align-items:center;gap:10px}.option-btn .check-icon{font-size:18px;color:var(--primary);width:22px;flex-shrink:0}.low-confidence-box{background:#fffbeb;border:1px solid #fcd34d;border-radius:10px;padding:14px 18px;margin:12px 0 22px;font-size:14px}.low-confidence-box strong{color:#92400e;display:block;margin-bottom:6px}.low-confidence-box p{margin:0;color:var(--text)}.nav-row{display:flex;gap:10px;justify-content:flex-end;margin-top:16px}.warning-box{background:var(--warning-bg);color:var(--warning-text);border-radius:10px;padding:14px 16px;margin:14px 0 22px;font-size:13px}.warning-box p{margin:0}.specialty-list{list-style:none;padding:0;margin:14px 0 26px;display:flex;flex-direction:column;gap:10px}.spec-rank{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:10px;background:var(--bg-soft);border:1px solid var(--border)}.spec-rank.rank-1{background:linear-gradient(90deg,#eff6ff,#fff);border-color:var(--primary)}.rank-label{font-size:12px;color:var(--text-light);font-weight:600;min-width:56px}.spec-name{font-weight:700;font-size:17px}.diff-list{margin:12px 0 22px;padding-left:22px}.diff-list li{margin:6px 0;font-size:14px}.redflag-reminder{margin-top:22px;padding:14px 18px;background:#fef2f2;border-left:4px solid #ef4444;border-radius:6px;font-size:13px}.redflag-reminder ul{margin:6px 0 0;padding-left:20px}.redflag-reminder li{margin:3px 0}@media(max-width:600px){.checker{padding:18px;border-radius:10px}.symptom-grid{grid-template-columns:repeat(2,1fr)}.nav-row{flex-direction:column-reverse}.nav-row button{width:100%}}