.concern-section{background-color:var(--color-background);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E")}.concern-header{text-align:center;margin-bottom:var(--spacing-xl)}.concern-title{font-family:var(--font-primary);font-size:2.4rem;font-style:italic;font-weight:400;line-height:1.4;color:var(--color-text-primary);margin-top:var(--spacing-sm)}.concern-list{list-style:none;padding:0;margin:0 auto;max-width:640px;display:flex;flex-direction:column;gap:0}.concern-item{display:flex;align-items:center;gap:var(--spacing-md);padding:1.1rem 0;border-bottom:1px solid var(--color-border);position:relative;cursor:default;transition:color .3s ease}.concern-item:first-child{border-top:1px solid var(--color-border)}.concern-item:hover .concern-text,.concern-num{color:var(--color-accent)}.concern-num{font-family:var(--font-primary);font-size:2.8rem;font-weight:400;font-style:italic;opacity:.25;line-height:1;min-width:3rem;text-align:right;flex-shrink:0;transition:opacity .3s ease}.concern-item:hover .concern-num{opacity:.6}.concern-text{font-family:var(--font-secondary),var(--font-japanese);font-size:1rem;color:var(--color-text-primary);line-height:1.6;transition:color .3s ease}.concern-lead{display:flex;align-items:center;gap:var(--spacing-md);max-width:640px;margin:var(--spacing-xl) auto 0}.concern-lead-line{flex-shrink:0;width:40px;height:2px;background-color:var(--color-accent)}.concern-lead-text{font-family:var(--font-secondary),var(--font-japanese);font-size:.95rem;color:var(--color-text-primary);line-height:1.7}.concern-lead-text em{font-style:normal;color:var(--color-accent);font-weight:600}@media (max-width:768px){.concern-title{font-size:1.8rem}.concern-num{font-size:2rem;min-width:2.4rem}.concern-text{font-size:.95rem}.concern-lead-text{font-size:.9rem}}@media (max-width:480px){.concern-title{font-size:1.5rem}.concern-num{font-size:1.6rem;min-width:2rem}}