.container{max-width:500px;margin:40px auto;padding:20px;background:var(--surface);border-radius:var(--radius-md);box-shadow:var(--shadow-card);font-family:Arial,Helvetica,sans-serif}.header{display:flex;align-items:center;gap:12px;padding:18px;background:white;border-bottom:1px solid #e5e5e5}.backBtn{border:none;background:transparent;font-size:22px;cursor:pointer}.header h2{font-size:18px;font-weight:600}.title{font-size:26px;font-weight:700;padding:20px 18px 10px;color:#111}.list{background:white}.topicItem{display:flex;justify-content:space-between;align-items:center;padding:18px;border-bottom:1px solid var(--line);cursor:pointer;transition:background .2s ease}.topicItem:hover{background:var(--surface-2)}.left{display:flex;align-items:center;gap:14px}.help-icon{width:20px;height:20px;object-fit:cover;border-radius:var(--radius-sm);font-size:10px;color:var(--ink-2)}.text{font-size:16px;color:var(--ink)}.arrow{font-size:14px;color:var(--ink-muted)}.sectionWrapper{margin-top:10px;background:var(--surface);padding:10px;border-top:.1px solid #f2f2f2}.sectionTitle{font-size:18px;font-weight:600}.articleItem{font-size:15px}.sectionTitle{font-size:16px;font-weight:700;margin-bottom:10px;color:#111}.articleItem{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--line);cursor:pointer}.articleItem span{font-size:15px;color:var(--ink-2)}.articleItem:hover{background:var(--surface-2)}.articleItem svg{font-size:14px;color:var(--ink-muted)}