:root{--color-bg:#070a12;--color-bg-elevated:#0d121f;--color-bg-card:#11182799;--color-bg-card-hover:#1e293bb3;--color-text:#f8fafc;--color-text-secondary:#94a3b8;--color-text-tertiary:#64748b;--color-accent-1:#06b6d4;--color-accent-2:#3b82f6;--color-accent-gradient:linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);--color-accent-glow:#06b6d426;--color-border:#ffffff14;--color-border-hover:#06b6d466;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--container-max:1200px;--header-height:72px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-card:0 4px 24px #0000004d;--shadow-card-hover:0 12px 40px #06b6d41f;--transition:.3s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button{cursor:pointer;font:inherit;color:inherit;background:0 0;border:none}.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}.fade-in{opacity:0;transition:opacity .6s,transform .6s;transform:translateY(24px)}.fade-in.visible{opacity:1;transform:translateY(0)}#site-header{z-index:100;height:var(--header-height);transition:all var(--transition);border-bottom:1px solid #0000;position:fixed;top:0;left:0;right:0}#site-header.scrolled{-webkit-backdrop-filter:blur(16px)saturate(180%);backdrop-filter:blur(16px)saturate(180%);border-bottom-color:var(--color-border);background:#0a0e1ad9}.header-inner{max-width:var(--container-max);justify-content:space-between;align-items:center;height:100%;margin:0 auto;padding:0 24px;display:flex}.logo{letter-spacing:-.5px;align-items:center;gap:8px;font-size:20px;font-weight:800;display:flex}.logo-img{width:auto;height:28px}.logo-icon{filter:drop-shadow(0 0 8px var(--color-accent-1));font-size:24px}.logo-text{background:var(--color-accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.gnb{align-items:center;gap:32px;display:flex}.gnb a{color:var(--color-text-secondary);transition:color var(--transition);font-size:14px;font-weight:500;position:relative}.gnb a:hover{color:var(--color-text)}.gnb a:after{content:"";background:var(--color-accent-gradient);width:0;height:2px;transition:width var(--transition);position:absolute;bottom:-4px;left:0}.gnb a:hover:after{width:100%}.header-actions{align-items:center;gap:12px;display:flex}.user-greeting{color:var(--color-text-secondary);font-size:13px}.lang-switch{background:#ffffff0d;border-radius:6px;gap:2px;margin-right:12px;padding:2px;display:flex}.lang-btn{color:var(--color-text-tertiary);transition:all var(--transition);border-radius:4px;padding:4px 10px;font-size:11px;font-weight:700}.lang-btn.active{color:var(--color-text);background:#06b6d433}.lang-btn:hover{color:var(--color-text)}.btn-ghost{color:var(--color-text-secondary);border-radius:var(--radius-sm);transition:all var(--transition);padding:6px 14px;font-size:13px;font-weight:500}.btn-ghost:hover{color:var(--color-text);background:#ffffff0f}.btn-primary-sm{color:#fff;background:var(--color-accent-gradient);border-radius:var(--radius-sm);transition:all var(--transition);box-shadow:0 2px 12px var(--color-accent-glow);align-items:center;padding:8px 18px;font-size:13px;font-weight:600;display:inline-flex}.btn-primary-sm:hover{box-shadow:0 4px 20px var(--color-accent-glow);transform:translateY(-1px)}.mobile-menu-btn{flex-direction:column;gap:5px;padding:4px;display:none}.mobile-menu-btn span{background:var(--color-text-secondary);width:22px;height:2px;transition:all var(--transition);border-radius:2px;display:block}.hero{max-width:var(--container-max);text-align:center;margin:0 auto;padding:140px 24px 60px;position:relative;overflow:hidden}.hero-bg-glow{background:radial-gradient(ellipse, var(--color-accent-glow) 0%, transparent 70%);pointer-events:none;z-index:0;width:800px;height:600px;position:absolute;top:-200px;left:50%;transform:translate(-50%)}.hero-content{z-index:1;position:relative}.hero-badge{letter-spacing:2px;color:var(--color-accent-1);background:#06b6d414;border:1px solid #06b6d440;border-radius:20px;margin-bottom:28px;padding:6px 16px;font-size:11px;font-weight:700;display:inline-block}.hero-title{letter-spacing:-2px;margin-bottom:24px;font-size:clamp(40px,7vw,72px);font-weight:900;line-height:1.1}.gradient-text{background:var(--color-accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.hero-desc{color:var(--color-text-secondary);max-width:520px;margin-bottom:40px;margin-left:auto;margin-right:auto;font-size:18px;line-height:1.7}.hero-actions{justify-content:center;gap:16px;margin-bottom:80px;display:flex}.btn-primary{color:#fff;background:var(--color-accent-gradient);border-radius:var(--radius-md);transition:all var(--transition);box-shadow:0 4px 24px var(--color-accent-glow);align-items:center;gap:8px;padding:14px 32px;font-size:15px;font-weight:700;display:inline-flex}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px #06b6d44d}.btn-arrow{transition:transform var(--transition)}.btn-primary:hover .btn-arrow{transform:translate(4px)}.btn-secondary{color:var(--color-text-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition);background:#ffffff08;align-items:center;gap:8px;padding:14px 32px;font-size:15px;font-weight:600;display:inline-flex}.btn-secondary:hover{color:var(--color-text);border-color:var(--color-border-hover);background:#ffffff0f}.service-pillars{grid-template-columns:repeat(3,1fr);gap:20px;max-width:900px;margin:0 auto;display:grid}.pillar-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);text-align:center;transition:all var(--transition);padding:36px 28px}.pillar-card:hover{background:var(--color-bg-card-hover);border-color:var(--color-border-hover);box-shadow:var(--shadow-card-hover);transform:translateY(-6px)}.pillar-icon{margin-bottom:16px;font-size:40px}.pillar-card h3{margin-bottom:8px;font-size:17px;font-weight:700}.pillar-card p{color:var(--color-text-secondary);font-size:13px;line-height:1.5}.section-header{text-align:center;margin-bottom:56px}.section-tag{letter-spacing:2px;color:var(--color-accent-1);margin-bottom:12px;font-size:11px;font-weight:700;display:inline-block}.section-title{letter-spacing:-1px;margin-bottom:12px;font-size:36px;font-weight:800;line-height:1.3}.section-desc{color:var(--color-text-secondary);font-size:16px;line-height:1.6}.interface-section{border-top:1px solid var(--color-border);padding:100px 0}.ui-preview-wrapper{margin-bottom:60px}.ui-preview-card{border-radius:var(--radius-lg);border:1px solid var(--color-border);background:var(--color-bg-elevated);max-width:900px;margin:0 auto;overflow:hidden;box-shadow:0 20px 60px #0006}.ui-preview-header{border-bottom:1px solid var(--color-border);background:#0000004d;align-items:center;gap:12px;padding:12px 16px;display:flex}.ui-dots{gap:6px;display:flex}.ui-dots span{border-radius:50%;width:100px;height:10px}.ui-dots span:first-child{background:#ef4444}.ui-dots span:nth-child(2){background:#f59e0b}.ui-dots span:nth-child(3){background:#22c55e}.ui-url{color:var(--color-text-tertiary);text-align:center;background:#ffffff0d;border-radius:4px;flex:1;padding:4px 12px;font-size:12px}.ui-preview-body{min-height:280px;display:flex}.ui-sidebar{border-right:1px solid var(--color-border);flex-shrink:0;width:180px;padding:16px 0}.ui-nav-item{color:var(--color-text-tertiary);cursor:default;transition:all var(--transition);align-items:center;gap:10px;padding:10px 16px;font-size:13px;display:flex}.ui-nav-item.active{color:var(--color-accent-1);border-right:2px solid var(--color-accent-1);background:#06b6d414}.ui-nav-icon{font-size:16px}.ui-main{flex:1;padding:20px}.ui-card-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.ui-content-card{border-radius:var(--radius-sm);border:1px solid var(--color-border);overflow:hidden}.ui-thumb{height:80px}.ui-card-info{padding:10px}.ui-card-tag{color:var(--color-accent-1);font-size:10px;font-weight:600}.ui-card-title{margin-top:4px;font-size:12px;font-weight:600;display:block}.interface-features{grid-template-columns:repeat(3,1fr);gap:24px;max-width:900px;margin:0 auto;display:grid}.if-item{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition);align-items:flex-start;gap:16px;padding:24px;display:flex}.if-item:hover{border-color:var(--color-border-hover);transform:translateY(-2px)}.if-num{background:var(--color-accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;flex-shrink:0;font-size:28px;font-weight:900;line-height:1}.if-item h4{margin-bottom:4px;font-size:15px;font-weight:700}.if-item p{color:var(--color-text-secondary);font-size:13px}.multidevice-section{background:#ffffff03;padding:100px 0}.device-showcase{grid-template-columns:repeat(3,1fr);gap:20px;max-width:800px;margin:0 auto 32px;display:grid}.device-card{text-align:center;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition);padding:40px 28px}.device-card:hover{border-color:var(--color-border-hover);transform:translateY(-4px)}.device-card--featured{border-color:var(--color-accent-1);background:linear-gradient(180deg, #06b6d414 0%, var(--color-bg-card) 100%);box-shadow:0 0 40px var(--color-accent-glow);transform:scale(1.05)}.device-card--featured:hover{transform:scale(1.05)translateY(-4px)}.device-icon{margin-bottom:16px;font-size:48px}.device-card h4{margin-bottom:8px;font-size:17px;font-weight:700}.device-card p{color:var(--color-text-secondary);font-size:13px;line-height:1.5}.device-banner{text-align:center;border-radius:var(--radius-md);background:#06b6d40f;border:1px solid #06b6d426;max-width:600px;margin:0 auto;padding:16px 24px}.device-banner p{color:var(--color-text-secondary);font-size:14px}.benefits-section{border-top:1px solid var(--color-border);padding:100px 0}.benefits-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.benefit-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition);padding:36px 28px}.benefit-card:hover{border-color:var(--color-border-hover);transform:translateY(-4px)}.benefit-icon-wrap{margin-bottom:16px}.benefit-icon{font-size:32px}.benefit-card h3{margin-bottom:10px;font-size:20px;font-weight:700}.benefit-card>p{color:var(--color-text-secondary);margin-bottom:20px;font-size:14px;line-height:1.6}.benefit-visual{border-radius:var(--radius-md);background:#0003;align-items:center;gap:16px;padding:16px;display:flex}.bv-before{flex-wrap:wrap;flex:1;gap:6px;display:flex}.bv-before span{border:1px solid var(--color-border);white-space:nowrap;background:#ffffff0d;border-radius:4px;padding:4px 10px;font-size:12px}.bv-arrow{color:var(--color-accent-1);flex-shrink:0;font-size:20px;font-weight:700}.bv-after span{background:var(--color-accent-gradient);color:#fff;border-radius:var(--radius-sm);white-space:nowrap;padding:8px 16px;font-size:14px;font-weight:700}.benefit-tags{flex-wrap:wrap;gap:8px;display:flex}.btag{border:1px solid var(--color-border);background:#ffffff0d;border-radius:20px;padding:6px 14px;font-size:13px}.btag--new{color:var(--color-accent-1);background:#06b6d414;border-color:#06b6d44d}.benefit-card--lang{grid-column:span 2}.lang-demo{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.lang-demo-card{border:1px solid var(--color-border);border-radius:var(--radius-md);opacity:.5;background:#0003;padding:20px;transition:all 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var(--color-accent-glow)}.pricing-badge{color:#fff;background:var(--color-accent-gradient);border-radius:20px;padding:4px 16px;font-size:11px;font-weight:700;position:absolute;top:-12px;left:50%;transform:translate(-50%)}.pricing-card-header{margin-bottom:28px}.pricing-card-header h3{margin-bottom:12px;font-size:20px;font-weight:700}.price-amount{font-size:32px;font-weight:800}.pricing-desc{color:var(--color-text-secondary);margin-top:8px;font-size:14px}.pricing-features{margin-bottom:28px;list-style:none}.pricing-features li{color:var(--color-text-secondary);border-bottom:1px solid var(--color-border);padding:8px 0;font-size:14px}.pricing-features li:last-child{border-bottom:none}.pricing-btn{text-align:center;width:100%;padding:12px 24px;display:block}.btn-outline{color:var(--color-text-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition);justify-content:center;align-items:center;gap:6px;padding:12px 28px;font-size:14px;font-weight:600;display:inline-flex}.btn-outline:hover{color:var(--color-text);border-color:var(--color-accent-1);background:#06b6d40d}.cta{padding:100px 0}.cta-inner{text-align:center;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:80px 40px;position:relative;overflow:hidden}.cta-glow{background:radial-gradient(ellipse, var(--color-accent-glow) 0%, transparent 70%);pointer-events:none;width:500px;height:300px;position:absolute;top:-100px;left:50%;transform:translate(-50%)}.cta-inner h2{z-index:1;margin-bottom:16px;font-size:36px;font-weight:800;position:relative}.cta-inner p{color:var(--color-text-secondary);z-index:1;margin-bottom:32px;font-size:16px;position:relative}.cta-actions{z-index:1;position:relative}#site-footer{border-top:1px solid var(--color-border);padding:60px 0 32px}.footer-top{justify-content:space-between;gap:60px;margin-bottom:48px;display:flex}.footer-brand{max-width:280px}.footer-brand .logo{margin-bottom:16px}.footer-brand-desc{color:var(--color-text-tertiary);font-size:14px;line-height:1.6}.footer-links{gap:60px;display:flex}.footer-col h4{color:var(--color-text-secondary);letter-spacing:.5px;margin-bottom:16px;font-size:13px;font-weight:700}.footer-col a,.footer-col p{color:var(--color-text-tertiary);transition:color var(--transition);margin-bottom:10px;font-size:13px;line-height:1.5;display:block}.footer-col a:hover{color:var(--color-text)}.footer-bottom{border-top:1px solid var(--color-border);padding-top:24px}.footer-bottom p{color:var(--color-text-tertiary);font-size:12px}@media (max-width:1024px){.service-pillars{grid-template-columns:repeat(3,1fr)}.benefits-grid{grid-template-columns:1fr}.benefit-card--lang{grid-column:span 1}.lang-demo{grid-template-columns:repeat(3,1fr)}.interface-features{grid-template-columns:1fr}.footer-links{gap:40px}}@media (max-width:768px){.gnb{display:none}.gnb.active{background:var(--color-bg);z-index:200;flex-direction:column;justify-content:center;align-items:center;gap:28px;display:flex;position:fixed;inset:0}.gnb.active a{font-size:24px}.header-actions .lang-switch,.header-actions .btn-ghost,.header-actions .btn-primary-sm{display:none}.mobile-menu-btn{display:flex}.hero{padding:120px 20px 40px}.hero-title{letter-spacing:-1px;font-size:36px}.hero-desc{font-size:15px}.hero-actions{flex-direction:column;align-items:center;margin-bottom:48px}.service-pillars{grid-template-columns:1fr;max-width:400px}.device-showcase{grid-template-columns:1fr;max-width:300px}.device-card--featured{transform:scale(1)}.device-card--featured:hover{transform:translateY(-4px)}.pricing-grid{grid-template-columns:1fr;max-width:400px;margin:0 auto}.lang-demo{grid-template-columns:1fr}.section-title{font-size:28px}.ui-preview-body{flex-direction:column}.ui-sidebar{border-right:none;border-bottom:1px solid var(--color-border);width:100%;padding:8px;display:flex;overflow-x:auto}.ui-nav-item{white-space:nowrap}.ui-nav-item.active{border-right:none;border-bottom:2px solid var(--color-accent-1)}.ui-card-grid{grid-template-columns:repeat(2,1fr)}.benefit-visual{flex-direction:column}.bv-arrow{transform:rotate(90deg)}.footer-top{flex-direction:column;gap:40px}.footer-links{flex-wrap:wrap;gap:32px}}@media (max-width:480px){.ui-card-grid{grid-template-columns:1fr}}