.introduction{padding:120px 0 60px;background:hsl(var(--background));margin-top:0}.introduction-content{max-width:900px;margin:0 auto}.introduction-title{font-size:2.5rem;font-weight:700;color:hsl(var(--foreground));margin-bottom:2rem;text-align:center;line-height:1.2}.introduction-text{font-size:1.1rem;line-height:1.8;color:hsl(var(--foreground))}.lead{font-size:1.25rem;font-weight:400;color:hsl(var(--muted-foreground));margin-bottom:3rem;text-align:center}.introduction-sections{display:flex;flex-direction:column;gap:2.5rem;margin-top:3rem}.intro-block{padding:1.5rem;background:hsl(var(--card));border-radius:8px;border-left:4px solid hsl(var(--primary));box-shadow:0 2px 8px rgba(0,0,0,.05)}.intro-block h2{font-size:1.5rem;font-weight:600;color:hsl(var(--foreground));margin-bottom:.75rem}.intro-block p{margin:0;color:hsl(var(--muted-foreground));line-height:1.7}@media (max-width:768px){.introduction{padding:100px 0 40px}.introduction-title{font-size:2rem}.lead{font-size:1.1rem}.intro-block h2{font-size:1.3rem}}@media (max-width:480px){.introduction{padding-top:90px}}