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rgba(74,107,124,.3)}.lovart-corner-tl{top:0;left:0;border-right:none;border-bottom:none}.lovart-corner-tr{top:0;right:0;border-left:none;border-bottom:none}.lovart-corner-bl{bottom:0;left:0;border-right:none;border-top:none}.lovart-corner-br{bottom:0;right:0;border-left:none;border-top:none}.lovart-rivet{position:absolute;width:12px;height:12px;background:radial-gradient(circle,#2c3e50cc,#4a6b7c99);border-radius:50%;border:2px solid rgba(209,216,221,.5);box-shadow:inset 0 1px 2px #0000004d,0 2px 4px #4a6b7c33}.lovart-rivet-1{top:40px;left:40px}.lovart-rivet-2{top:40px;right:40px}.lovart-rivet-3{bottom:40px;left:40px}.lovart-rivet-4{bottom:40px;right:40px}.lovart-hero-content{max-width:900px;text-align:center;margin:0 auto;position:relative;z-index:3}.lovart-hero-title{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;line-height:1.15;margin-bottom:var(--spacing-md);color:var(--color-text);text-shadow:0 2px 8px 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var(--transition-base)}.lovart-stat-item:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--transition-base)}.lovart-stat-item:hover:before{transform:scaleX(1)}.lovart-stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);background:#fffc;border-color:var(--color-primary)}.lovart-stat-icon{font-size:2rem;filter:grayscale(.3) drop-shadow(0 2px 4px rgba(74,107,124,.2))}.lovart-stat-number{font-size:2.25rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}.lovart-stat-label{font-size:.875rem;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;font-weight:600;text-align:center}.lovart-steam-overlay{position:absolute;inset:0;pointer-events:none;z-index:1;overflow:hidden}.lovart-steam-particle{position:absolute;background:radial-gradient(circle,rgba(74,107,124,.15) 0%,transparent 70%);border-radius:50%;filter:blur(60px);animation:lovart-steam-rise 12s ease-in-out infinite}.lovart-steam-1{width:400px;height:400px;bottom:-200px;left:10%;animation-duration:14s}.lovart-steam-2{width:350px;height:350px;bottom:-180px;right:15%;animation-duration:16s;animation-delay:-4s}.lovart-steam-3{width:300px;height:300px;bottom:-150px;left:50%;animation-duration:18s;animation-delay:-8s}@keyframes 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0}.lovart-features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--spacing-lg)}.lovart-feature-card{position:relative;background:linear-gradient(135deg,#ffffffd9,#f5f7f8d9);border-radius:var(--radius-lg);padding:var(--spacing-xl);border:1px solid rgba(74,107,124,.2);transition:all var(--transition-base);overflow:hidden;box-shadow:var(--shadow-sm)}.lovart-feature-card:hover{transform:translateY(-6px);border-color:var(--color-primary);box-shadow:var(--shadow-lg)}.lovart-feature-card:hover .lovart-feature-glow{opacity:1}.lovart-card-metal-edge{position:absolute;left:0;right:0;height:4px;background:linear-gradient(90deg,transparent 0%,rgba(74,107,124,.3) 20%,rgba(74,107,124,.5) 50%,rgba(74,107,124,.3) 80%,transparent 100%)}.lovart-edge-top{top:0}.lovart-edge-bottom{bottom:0}.lovart-feature-glow{position:absolute;inset:0;background:radial-gradient(circle at center,rgba(74,107,124,.12) 0%,transparent 70%);opacity:0;transition:opacity var(--transition-slow);pointer-events:none}.lovart-feature-icon{font-size:3rem;margin-bottom:var(--spacing-md);display:block;filter:drop-shadow(0 2px 4px rgba(74,107,124,.2))}.lovart-feature-title{font-size:1.1875rem;font-weight:700;margin-bottom:var(--spacing-sm);color:var(--color-text)}.lovart-feature-description{font-size:.9375rem;line-height:1.7;color:var(--color-text-secondary);margin:0}.lovart-online-section{background:linear-gradient(180deg,rgba(74,107,124,.05) 0%,var(--color-bg) 100%);padding:var(--spacing-2xl) 0}.lovart-steel-panel{position:relative;background:linear-gradient(135deg,#ffffffe6,#f5f7f8e6);border:2px solid rgba(74,107,124,.3);border-radius:var(--radius-xl);padding:var(--spacing-2xl);box-shadow:var(--shadow-md),inset 0 1px #ffffff80;backdrop-filter:blur(8px)}.lovart-panel-rivets{position:absolute;inset:0;pointer-events:none}.lovart-panel-rivet{position:absolute;width:14px;height:14px;background:radial-gradient(circle,#2c3e50e6,#4a6b7cb3);border-radius:50%;border:2px solid rgba(209,216,221,.6);box-shadow:inset 0 1px 2px #0006,0 2px 4px #4a6b7c4d}.lovart-panel-rivet:nth-child(1){top:20px;left:20px}.lovart-panel-rivet:nth-child(2){top:20px;right:20px}.lovart-panel-rivet:nth-child(3){bottom:20px;left:20px}.lovart-panel-rivet:nth-child(4){bottom:20px;right:20px}.lovart-panel-content{text-align:center;max-width:800px;margin:0 auto}.lovart-panel-icon{font-size:4rem;margin-bottom:var(--spacing-lg);filter:drop-shadow(0 4px 8px rgba(74,107,124,.25))}.lovart-panel-title{font-size:clamp(1.875rem,4vw,2.5rem);font-weight:800;margin-bottom:var(--spacing-lg);color:var(--color-text)}.lovart-panel-text{font-size:1.0625rem;line-height:1.8;color:var(--color-text);margin-bottom:var(--spacing-xl)}.lovart-panel-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md);margin-top:var(--spacing-xl)}.lovart-panel-feature-item{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm);background:#4a6b7c14;border-radius:var(--radius-md);font-size:.9375rem;color:var(--color-text);font-weight:500}.lovart-check-icon{flex-shrink:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:var(--color-primary);color:var(--color-white);border-radius:50%;font-weight:700;font-size:.75rem;box-shadow:0 2px 4px #4a6b7c4d}.lovart-showcase-section{background:var(--color-bg);padding:var(--spacing-2xl) 0}.lovart-showcase-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--spacing-xl)}.lovart-showcase-item{background:#fffc;border-radius:var(--radius-xl);overflow:hidden;border:1px solid rgba(74,107,124,.2);transition:all var(--transition-base);box-shadow:var(--shadow-sm)}.lovart-showcase-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--color-primary)}.lovart-showcase-frame{position:relative;width:100%;aspect-ratio:16 / 9;overflow:hidden;background:var(--gradient-frost)}.lovart-showcase-image{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}.lovart-showcase-item:hover .lovart-showcase-image{transform:scale(1.05)}.lovart-showcase-info{padding:var(--spacing-lg)}.lovart-showcase-title{font-size:1.25rem;font-weight:700;margin-bottom:var(--spacing-xs);color:var(--color-text)}.lovart-showcase-desc{font-size:.9375rem;line-height:1.6;color:var(--color-text-secondary);margin:0}.lovart-innovations-section{background:linear-gradient(180deg,rgba(74,107,124,.05) 0%,var(--color-bg) 100%);padding:var(--spacing-2xl) 0}.lovart-innovations-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:var(--spacing-xl)}.lovart-innovation-card{position:relative;padding:var(--spacing-xl);background:linear-gradient(135deg,#ffffffe6,#f5f7f8e6);border:1px solid rgba(74,107,124,.25);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);transition:all var(--transition-base)}.lovart-innovation-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--color-primary)}.lovart-innovation-badge{position:absolute;top:var(--spacing-md);right:var(--spacing-md);padding:var(--spacing-xs) var(--spacing-md);background:var(--gradient-primary);color:var(--color-white);border-radius:var(--radius-sm);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;box-shadow:0 2px 8px #4a6b7c4d}.lovart-innovation-title{font-size:1.375rem;font-weight:700;margin-bottom:var(--spacing-md);color:var(--color-text);padding-right:80px}.lovart-innovation-desc{font-size:.9375rem;line-height:1.75;color:var(--color-text-secondary);margin:0}.lovart-techniques-section{background:var(--color-bg);padding:var(--spacing-2xl) 0}.lovart-techniques-list{display:flex;flex-direction:column;gap:var(--spacing-xl);max-width:900px;margin:0 auto}.lovart-technique-item{display:flex;gap:var(--spacing-lg);padding:var(--spacing-xl);background:#ffffffd9;border:1px solid rgba(74,107,124,.2);border-left:4px solid var(--color-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:all var(--transition-base)}.lovart-technique-item:hover{transform:translate(8px);box-shadow:var(--shadow-md);border-left-color:var(--color-primary-dark)}.lovart-technique-number{flex-shrink:0;width:60px;height:60px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:900;background:var(--gradient-primary);color:var(--color-white);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.lovart-technique-content{flex:1}.lovart-technique-title{font-size:1.25rem;font-weight:700;margin-bottom:var(--spacing-sm);color:var(--color-text)}.lovart-technique-desc{font-size:.9375rem;line-height:1.75;color:var(--color-text-secondary);margin:0}.lovart-applications-section{background:linear-gradient(180deg,rgba(74,107,124,.05) 0%,var(--color-bg) 100%);padding:var(--spacing-2xl) 0}.lovart-applications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:var(--spacing-lg)}.lovart-app-card{padding:var(--spacing-xl);background:#ffffffd9;border:1px solid rgba(74,107,124,.2);border-radius:var(--radius-xl);transition:all var(--transition-base);box-shadow:var(--shadow-sm)}.lovart-app-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--color-primary)}.lovart-app-icon{font-size:3rem;margin-bottom:var(--spacing-md);display:block;filter:drop-shadow(0 2px 6px rgba(74,107,124,.25))}.lovart-app-title{font-size:1.1875rem;font-weight:700;margin-bottom:var(--spacing-sm);color:var(--color-text)}.lovart-app-desc{font-size:.9375rem;line-height:1.7;color:var(--color-text-secondary);margin-bottom:var(--spacing-md)}.lovart-app-link{display:inline-flex;align-items:center;gap:var(--spacing-xs);color:var(--color-primary);text-decoration:none;font-weight:600;font-size:.9375rem;transition:all var(--transition-fast);border-bottom:2px solid transparent}.lovart-app-link:hover{border-bottom-color:var(--color-primary);gap:var(--spacing-sm)}.lovart-faq-section{background:var(--color-bg);padding:var(--spacing-2xl) 0}.lovart-faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(480px,1fr));gap:var(--spacing-lg)}.lovart-faq-item{padding:var(--spacing-xl);background:#ffffffd9;border:1px solid rgba(74,107,124,.2);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:all var(--transition-base)}.lovart-faq-item:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.lovart-faq-header{display:flex;align-items:start;gap:var(--spacing-md);margin-bottom:var(--spacing-md)}.lovart-faq-number{flex-shrink:0;display:flex;align-items:center;justify-content:center;min-width:40px;height:40px;background:var(--gradient-primary);color:var(--color-white);border-radius:var(--radius-md);font-size:.875rem;font-weight:700;box-shadow:var(--shadow-sm)}.lovart-faq-question{flex:1;font-size:1.0625rem;font-weight:700;color:var(--color-text);line-height:1.5;margin:0;padding-top:.25rem}.lovart-faq-answer p{font-size:.9375rem;line-height:1.75;color:var(--color-text-secondary);margin:0}@media(min-width:768px){.lovart-video-page{padding:var(--spacing-lg)}}@media(min-width:1024px){.lovart-video-container{flex-direction:row;gap:var(--spacing-lg);min-height:calc(100vh - 200px)}}@media(max-width:1024px){.lovart-faq-grid{grid-template-columns:1fr}.lovart-technique-item{flex-direction:column;align-items:center;text-align:center}.lovart-technique-item:hover{transform:translateY(-4px)}}@media(max-width:768px){.lovart-video-hero{min-height:70vh;padding:var(--spacing-xl) 0}.lovart-hero-title{font-size:2rem}.lovart-gradient-text{font-size:1.75rem}.lovart-hero-subtitle{font-size:1rem}.lovart-hero-stats{grid-template-columns:1fr;gap:var(--spacing-md)}.lovart-stat-number{font-size:1.875rem}.lovart-corner{width:50px;height:50px;border-width:2px}.lovart-rivet{width:10px;height:10px}.lovart-rivet-1,.lovart-rivet-2{top:25px}.lovart-rivet-1,.lovart-rivet-3{left:25px}.lovart-rivet-2,.lovart-rivet-4{right:25px}.lovart-rivet-3,.lovart-rivet-4{bottom:25px}.lovart-features-grid,.lovart-showcase-grid,.lovart-innovations-grid,.lovart-applications-grid{grid-template-columns:1fr;gap:var(--spacing-md)}.lovart-steel-panel{padding:var(--spacing-xl) var(--spacing-md)}.lovart-panel-features{grid-template-columns:1fr}.lovart-technique-number{width:50px;height:50px;font-size:1.25rem}.lovart-faq-header{flex-direction:column}.lovart-faq-number{width:36px;height:36px;font-size:.8125rem}.lovart-faq-question{font-size:1rem;padding-top:0}}@media(max-width:480px){.lovart-video-hero{padding:var(--spacing-lg) 0}.lovart-hero-container,.lovart-container-max{padding:0 var(--spacing-md)}.lovart-section-title{font-size:1.75rem}.lovart-panel-title{font-size:1.625rem}}[data-theme=dark] .lovart-video-hero{background:linear-gradient(180deg,var(--color-bg) 0%,rgba(74,107,124,.12) 100%)}[data-theme=dark] .lovart-stat-item,[data-theme=dark] .lovart-feature-card,[data-theme=dark] .lovart-steel-panel,[data-theme=dark] .lovart-showcase-item,[data-theme=dark] .lovart-innovation-card,[data-theme=dark] .lovart-technique-item,[data-theme=dark] .lovart-app-card,[data-theme=dark] .lovart-faq-item{background:#2c3e50b3;border-color:#4a6b7c4d}[data-theme=dark] .lovart-stat-item:hover,[data-theme=dark] .lovart-feature-card:hover,[data-theme=dark] .lovart-showcase-item:hover,[data-theme=dark] .lovart-innovation-card:hover,[data-theme=dark] .lovart-technique-item:hover,[data-theme=dark] .lovart-app-card:hover,[data-theme=dark] .lovart-faq-item:hover{background:#2c3e50e6}[data-theme=dark] .lovart-panel-feature-item{background:#4a6b7c26}