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h3{font-size:var(--font-size-lg);margin-bottom:var(--space-sm);font-weight:700}.feature-card p{font-size:var(--font-size-sm);color:var(--text-secondary);line-height:1.6}.how-to{z-index:1;max-width:600px;padding:0 var(--space-lg) var(--space-4xl);margin:0 auto;position:relative}.steps{flex-direction:column;align-items:center;gap:0;display:flex}.step{align-items:flex-start;gap:var(--space-lg);padding:var(--space-xl);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);width:100%;transition:var(--transition-base);display:flex}.step:hover{background:var(--bg-card-hover);border-color:#fe2c5533;transform:scale(1.02)}.step-number{background:var(--gradient-pink-cyan);border-radius:var(--radius-md);width:44px;height:44px;font-size:var(--font-size-lg);color:#fff;flex-shrink:0;justify-content:center;align-items:center;font-weight:800;display:flex}.step-content h3{font-size:var(--font-size-base);margin-bottom:var(--space-xs);font-weight:700}.step-content p{font-size:var(--font-size-sm);color:var(--text-secondary);line-height:1.6}.step-connector{height:40px;color:var(--text-muted);opacity:.5;justify-content:center;align-items:center;display:flex}.footer{z-index:1;border-top:1px solid var(--border-subtle);padding:var(--space-2xl) var(--space-lg);position:relative}.footer-content{text-align:center;max-width:1200px;margin:0 auto}.footer-brand{margin-bottom:var(--space-lg)}.footer-brand p{color:var(--text-muted);font-size:var(--font-size-sm);margin-top:var(--space-sm)}.footer-bottom p{font-size:var(--font-size-xs);color:var(--text-muted)}.hidden{display:none!important}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.hero-title{font-size:var(--font-size-3xl);letter-spacing:-1px}.hero-subtitle{font-size:var(--font-size-base)}.input-wrapper{flex-wrap:wrap}.fetch-btn{justify-content:center;width:100%;padding:14px}.video-info-row{text-align:center;flex-direction:column;align-items:center}.thumbnail-wrapper{width:100%;max-width:280px;height:360px}.video-stats,.video-author{justify-content:center}.quality-options,.features-grid{grid-template-columns:1fr 1fr}.nav-links{display:none}.section-title{font-size:var(--font-size-2xl)}}@media(max-width:480px){.hero{padding:120px var(--space-md) var(--space-2xl)}.hero-title{font-size:var(--font-size-2xl)}.preview-section{padding:0 var(--space-md) var(--space-2xl)}.preview-card{padding:var(--space-md)}.features-grid,.quality-options{grid-template-columns:1fr}}.page-container{max-width:800px;padding:140px var(--space-lg) var(--space-3xl);min-height:100vh;margin:0 auto}.page-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-2xl);padding:var(--space-2xl);box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(20px);position:relative;overflow:hidden}.page-card-accent{background:var(--gradient-main);height:4px;position:absolute;top:0;left:0;right:0}.page-title{font-size:var(--font-size-4xl);color:var(--text-primary);margin-bottom:var(--space-xl);letter-spacing:-1px;font-weight:800}.page-content{color:var(--text-secondary);line-height:1.8}.page-content section{margin-bottom:var(--space-xl)}.page-content h2{font-size:var(--font-size-xl);color:var(--text-primary);margin-bottom:var(--space-sm);font-weight:600}.page-content p{margin-bottom:var(--space-md)}.page-content ul{padding-left:var(--space-xl);margin-bottom:var(--space-md);list-style:outside}.page-footer{padding-top:var(--space-xl);border-top:1px solid var(--border-subtle);margin-top:var(--space-3xl);font-size:var(--font-size-sm);color:var(--text-muted)}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}