.how-to-use{background:var(--bg-light);padding-top:100px}.page-title{text-align:center;color:var(--text);margin-bottom:20px;font-size:3rem;font-weight:700}.page-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:60px;font-size:1.5rem}.steps-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px;margin-top:60px;display:grid}.step-card{text-align:center;background:#fff;border-radius:16px;padding:50px 40px;transition:all .4s cubic-bezier(.4,0,.2,1);animation:.6s ease-out both fadeInUp;position:relative;overflow:hidden;box-shadow:0 2px 10px #0000000d}.step-card:before{content:"";background:linear-gradient(90deg,#0000,#1ca8a81a,#0000);width:100%;height:100%;transition:left .5s;position:absolute;top:0;left:-100%}.step-card:hover:before{left:100%}.step-card:first-child{animation-delay:.1s}.step-card:nth-child(2){animation-delay:.3s}.step-card:nth-child(3){animation-delay:.5s}.step-card:nth-child(4){animation-delay:.7s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.step-card{transition:var(--transition-smooth)}.step-card:hover{border-top:3px solid var(--primary);background:linear-gradient(#fff,#fafafa);transform:translateY(-6px);box-shadow:0 12px 32px #1ca8a826}.step-icon{transition:var(--transition-smooth);color:var(--primary);justify-content:center;align-items:center;margin-bottom:20px;display:flex}.step-card:hover .step-icon{color:var(--primary-hover);transform:scale(1.1)}.step-title{color:var(--text);margin-bottom:20px;font-size:1.75rem;font-weight:600}.step-description{color:var(--text-secondary);font-size:1.1rem;line-height:1.8}@media (max-width:768px){.how-to-use{padding-top:80px}.steps-grid{grid-template-columns:1fr}}