.site-header{background:#fff;border-bottom:1px solid #eee;position:relative;z-index:1000}.header-inner{display:flex;justify-content:space-between;align-items:center;padding:.5rem 1rem;flex-wrap:wrap}.logo{font-size:1.5rem;font-weight:700}.logo-dot{color:#007bff}.nav{display:flex;align-items:center;gap:1rem}.nav .divider{margin:0 .5rem;color:#999}.tnc-link{font-size:.875rem}.hamburger{display:none;flex-direction:column;justify-content:space-between;width:24px;height:18px;background:none;border:none;cursor:pointer;padding:0}.hamburger span{display:block;height:2px;width:100%;background:#333;border-radius:1px;transition:all .3s}.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.hamburger.open span:nth-child(2){opacity:0}.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}@media (max-width: 768px){.hamburger{display:flex}.nav{display:none;flex-direction:column;width:100%;margin-top:.5rem}.nav.active{display:flex}.nav a{padding:.5rem 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h2{text-align:center;font-size:var(--font-size-3xl);margin-bottom:var(--space-xl);background:var(--crypto-gradient);background-clip:text;-webkit-background-clip:text;color:transparent;-webkit-text-fill-color:transparent}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-xl);position:relative;z-index:1;width:100%;max-width:var(--content-width);margin-top:var(--space-2xl)}.feature{background:linear-gradient(135deg,rgba(255,255,255,.03),rgba(255,255,255,.01));padding:var(--space-xl);border-radius:20px;border:var(--border-light);transition:all 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li{margin-bottom:var(--space-md);padding:var(--space-lg);background:var(--glass);border-radius:16px;border:var(--border-light)}.footer{padding:var(--space-2xl) 0;text-align:center;color:var(--muted);position:relative}.footer:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent)}@media (max-width: 1200px){:root{--content-width: 100%;--container-padding: var(--space-lg)}.card-mock{width:100%;max-width:600px}.features-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 980px){:root{--space-2xl: 40px;--section-spacing: 40px;--header-height: 64px}.hero{padding:var(--section-spacing) 0}.hero h1{font-size:var(--font-size-3xl)}.features{padding-top:var(--space-lg)}.features-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-lg);margin-top:var(--space-xl)}.header-inner{padding:var(--space-sm) 0}.nav{position:fixed;top:var(--header-height);left:0;right:0;background:rgba(7,11,32,.95);padding:var(--space-lg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:var(--border-light);display:none;flex-direction:column;gap:var(--space-md)}.nav.active{display:flex}}@media (max-width: 768px){:root{--font-size-4xl: 36px;--font-size-3xl: 28px;--font-size-2xl: 22px;--space-xl: 24px}.container{padding:0 var(--space-md)}.features-grid{grid-template-columns:1fr;gap:var(--space-lg)}.card-preview{flex-direction:column;align-items:center;gap:var(--space-xl);margin-bottom:var(--space-xl)}.card-mock{max-width:100%;margin:0 auto}.card-details{text-align:center;padding:0 var(--space-md)}.actions{flex-direction:column;gap:var(--space-md);width:100%}.btn{width:100%}}@media (max-width: 480px){:root{--font-size-base: 15px;--space-lg: 16px}.hero h1{font-size:32px}.feature{padding:var(--space-lg)}}