.nav-scroll{backdrop-filter:blur(10px);background-color:rgba(129,138,143,0.9)}.mobile-menu{transition:all 0.3s ease-in-out}.hero-bg{background:linear-gradient(rgba(106,116,123,0.7),rgba(86,101,111,0.7)),url('../themes/main/assets/img/photo1.webp');background-size:cover;background-position:center}.testimonial-bg{background:linear-gradient(rgba(54,69,79,0.85),rgba(54,69,79,0.85)),url('https://images.unsplash.com/photo-1577720643267-bf2411a1c3d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');background-size:cover;background-position:center}.contact-bg{background:linear-gradient(rgba(54,69,79,0.9),rgba(54,69,79,0.9)),url('https://images.unsplash.com/photo-1577720643267-bf2411a1c3d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');background-size:cover;background-position:center}.cta-bg{background:linear-gradient(rgba(54,69,79,0.8),rgba(54,69,79,0.8)),url('https://images.unsplash.com/photo-1577720643267-bf2411a1c3d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');background-size:cover;background-position:center}.carousel{scroll-behavior:smooth}.founder-bg{background:linear-gradient(rgba(54,69,79,0.85),rgba(54,69,79,0.85)),url('https://images.unsplash.com/photo-1577720643267-bf2411a1c3d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');background-size:cover;background-position:center}.carousel{scroll-behavior:smooth}.scrollbar-hide{-ms-overflow-style:none;scrollbar-width:none}.scrollbar-hide::-webkit-scrollbar{display:none}.exhibition-card{transition:transform 0.3s ease,box-shadow 0.3s ease}.exhibition-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,0.1)}.faq-item{border-bottom:1px solid #e5e5e5}.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s ease-out}.faq-item.active .faq-answer{max-height:500px}.faq-item.active .faq-toggle{transform:rotate(180deg)}.success-message{max-height:0;overflow:hidden;transition:max-height 0.5s ease-out}.success-message.show{max-height:200px}.contact-hero{background:linear-gradient(rgba(54,69,79,0.8),rgba(54,69,79,0.8)),url('https://images.unsplash.com/photo-1577720643267-bf2411a1c3d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');background-size:cover;background-position:center;min-height:60vh}.contact-info-bg{background:linear-gradient(rgba(212,175,55,0.1),rgba(212,175,55,0.1)),url('https://images.unsplash.com/photo-1577720643267-bf2411a1c3d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');background-size:cover;background-position:center}.hours-bg{background:linear-gradient(rgba(128,0,32,0.1),rgba(128,0,32,0.1)),url('https://images.unsplash.com/photo-1577720643267-bf2411a1c3d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');background-size:cover;background-position:center}.policy-hero{background:linear-gradient(rgba(54,69,79,0.9),rgba(54,69,79,0.9)),url('https://images.unsplash.com/photo-1577720643267-bf2411a1c3d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');background-size:cover;background-position:center}.policy-section{border-left:3px solid #D4AF37}.back-to-top{position:fixed;bottom:20px;right:20px;background:#800020;color:white;width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transition:opacity 0.3s;z-index:1000}.back-to-top.show{opacity:1}