:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh}#root{width:100%;min-height:100vh}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #4A90E2;--secondary-color: #7B68EE;--accent-color: #FF6B6B;--text-dark: #333;--text-light: #666;--bg-light: #f8f9fa;--white: #ffffff;--shadow: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .15)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6;color:var(--text-dark);overflow-x:hidden}.app{width:100%;min-height:100vh}.progress-bar{position:fixed;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));transform-origin:left;z-index:9999}.navbar{position:fixed;top:0;left:0;right:0;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow);z-index:1000;transition:all .3s ease}.navbar.scrolled{box-shadow:0 2px 10px #0000001a}.nav-container{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;cursor:pointer;position:relative;z-index:1001}.mobile-menu-btn{display:none;padding:.5rem;background:transparent;border:none;cursor:pointer;color:var(--text-dark);z-index:1001;transition:transform .3s ease}.mobile-menu-btn:hover{transform:scale(1.1)}.nav-links{display:flex;gap:2rem;list-style:none}@media (max-width: 768px){.nav-links{position:fixed;top:0;left:0;right:0;bottom:0;background:#fffffffa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);flex-direction:column;justify-content:center;align-items:center;gap:2rem;padding:2rem;z-index:999}.nav-links a{font-size:1.5rem}.mobile-menu-btn{display:block}}.nav-links a{text-decoration:none;color:var(--text-dark);font-weight:500;transition:color .3s ease;cursor:pointer}.hero{padding:120px 2rem 60px;background:linear-gradient(135deg,#667eea,#764ba2);color:var(--white);min-height:100vh;display:flex;align-items:center}.hero-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}.hero-content h1{font-size:3.5rem;margin-bottom:1.5rem;line-height:1.2}.hero-content p{font-size:1.25rem;margin-bottom:2rem;opacity:.95}.download-buttons{display:flex;gap:1rem;flex-wrap:wrap}.download-btn{display:inline-flex;align-items:center;gap:.75rem;padding:1rem 2rem;background:var(--white);color:var(--primary-color);border-radius:50px;text-decoration:none;font-weight:600;transition:all .3s ease;box-shadow:var(--shadow-lg);cursor:pointer}.download-btn svg{width:24px;height:24px}.app-preview{position:relative;perspective:1000px}.phone-mockup-vertical{width:400px;height:800px;background:var(--white);border-radius:50px;padding:15px;box-shadow:var(--shadow-lg);margin:0 auto;position:relative;transform-style:preserve-3d}.phone-screen-vertical{width:100%;height:100%;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);border-radius:35px;overflow:hidden;display:flex;align-items:center;justify-content:center}.placeholder-image-vertical{width:100%;height:100%;object-fit:cover}.features{padding:100px 2rem;background:var(--bg-light)}.section-title{text-align:center;margin-bottom:4rem}.section-title h2{font-size:2.5rem;margin-bottom:1rem;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-title p{font-size:1.125rem;color:var(--text-light)}.features-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.feature-card{background:var(--white);padding:2rem;border-radius:15px;box-shadow:var(--shadow);transition:all .3s ease}.feature-icon{width:60px;height:60px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border-radius:15px;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;font-size:1.5rem}.feature-card h3{font-size:1.5rem;margin-bottom:1rem;color:var(--text-dark)}.feature-card p{color:var(--text-light);line-height:1.8}.showcase{padding:100px 2rem;background:var(--white)}.showcase-item{max-width:1200px;margin:0 auto 6rem;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}.showcase-item.reverse .showcase-content{order:1}.showcase-content h3{font-size:2rem;margin-bottom:1.5rem;color:var(--text-dark)}.showcase-content p{font-size:1.125rem;color:var(--text-light);margin-bottom:1.5rem;line-height:1.8}.showcase-list{list-style:none;margin-bottom:2rem}.showcase-list li{padding:.75rem 0 .75rem 2rem;position:relative;color:var(--text-dark)}.showcase-list li:before{content:"✓";position:absolute;left:0;color:var(--primary-color);font-weight:700}.showcase-image{width:100%;height:600px;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);border-radius:20px;overflow:hidden;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);perspective:1000px}.showcase-image img{width:100%;height:100%;object-fit:contain}.tech-specs{padding:100px 2rem;background:linear-gradient(135deg,#667eea,#764ba2);color:var(--white)}.tech-specs .section-title h2{background:var(--white);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.tech-specs .section-title p{color:#ffffffe6}.tech-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.tech-card{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:2rem;border-radius:15px;border:1px solid rgba(255,255,255,.2);transition:all .3s ease}.tech-card h4{font-size:1.25rem;margin-bottom:1rem}.tech-card p{opacity:.9;line-height:1.8}.qr-section-wrapper{padding:100px 2rem;background:var(--white)}.qr-grid{max-width:800px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:3rem;text-align:center}.qr-item{display:flex;flex-direction:column;align-items:center}.qr-code{width:250px;height:250px;background:#f0f0f0;border-radius:15px;overflow:hidden;margin-bottom:1rem;display:flex;align-items:center;justify-content:center}.qr-code img{width:100%;height:100%;object-fit:cover}.qr-text{font-size:1.125rem;font-weight:600;color:var(--text-dark);margin-bottom:.5rem}.qr-sub{font-size:.875rem;color:var(--text-light)}.footer{background:var(--text-dark);color:var(--white);padding:3rem 2rem}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.footer-section h4{margin-bottom:1.5rem;font-size:1.25rem}.footer-section p,.footer-section a{color:#fffc;line-height:2;text-decoration:none;display:block;cursor:pointer}.footer-section a:hover{color:var(--white)}.copyright{text-align:center;padding-top:2rem;margin-top:2rem;border-top:1px solid rgba(255,255,255,.1);color:#fff9}@media (max-width: 768px){.nav-links{display:none}.hero-container{grid-template-columns:1fr;text-align:center}.hero-content h1{font-size:2.5rem}.download-buttons{justify-content:center}.showcase-item{grid-template-columns:1fr}.showcase-item.reverse .showcase-content{order:0}.phone-mockup-vertical{width:320px;height:640px}.features-grid,.tech-grid{grid-template-columns:1fr}.showcase-image{height:500px}}html{scroll-behavior:smooth}