* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
body { background: #f8fafc; color: #1e293b; }
.container { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 16px; }
.navbar { background: #fff; border-bottom: 1px solid #e2e8f0; }
.nav-content { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand-logo { font-size: 20px; font-weight: bold; text-decoration: none; color: #1e293b; }
.brand-logo span { color: #2563eb; }
.btn { display: inline-block; padding: 8px 14px; border-radius: 6px; text-decoration: none; font-size: 13px; font-weight: 600; border: 1px solid transparent; cursor: pointer; }
.btn-primary { background: #2563eb; color: #fff; }
.btn-outline { border-color: #cbd5e1; color: #475569; }
.main-content { padding: 30px 16px; }
.qa-card { background: #fff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 16px; margin-bottom: 12px; display: flex; gap: 15px; }
.stats-box { text-align: center; min-width: 60px; color: #64748b; font-size: 12px; }
.stats-box strong { font-size: 16px; color: #0f172a; display: block; }
.qa-body { flex: 1; }
.qa-title { font-size: 17px; margin-bottom: 6px; }
.qa-title a { text-decoration: none; color: #0f172a; }
.qa-title a:hover { color: #2563eb; }
.tags { margin: 8px 0; }
.tag { background: #eff6ff; color: #2563eb; padding: 2px 6px; border-radius: 4px; font-size: 12px; }
.meta-info { font-size: 12px; color: #64748b; }
.form-group { margin-bottom: 15px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 5px; font-size: 13px; }
.form-control { width: 100%; padding: 8px; border: 1px solid #cbd5e1; border-radius: 5px; font-size: 14px; }
.footer { border-top: 1px solid #e2e8f0; background: #fff; padding: 20px 0; font-size: 13px; color: #64748b; text-align: center; margin-top: 40px; }