:root{--primary-color:#c2f711;--secondary-color:#5e5e5e;--dark-bg:#1a1a1a;--dark-bg-secondary:#2a2a2a;--dark-text:#fff;--light-bg:#fff;--light-bg-secondary:#f5f5f5;--light-text:#1a1a1a;--border-color:#e0e0e0;--shadow:#0000001a;--transition:all .3s ease}body.dark-mode{--bg-primary:var(--dark-bg);--bg-secondary:var(--dark-bg-secondary);--text-primary:var(--dark-text);--text-secondary:#b0b0b0;--border-color:#3a3a3a;--shadow:#00000080}body.light-mode{--bg-primary:var(--light-bg);--bg-secondary:var(--light-bg-secondary);--text-primary:var(--light-text);--text-secondary:#5e5e5e;--border-color:#e0e0e0;--shadow:#0000001a}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);transition:var(--transition);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6;overflow-x:hidden}h1,h2,h3,h4,h5,h6{margin-bottom:1rem;font-weight:700;line-height:1.2}h1{font-size:3rem}h2{font-size:2.5rem}h3{font-size:2rem}h4{font-size:1.5rem}h5{font-size:1.25rem}h6{font-size:1rem}p{color:var(--text-secondary);margin-bottom:1rem}a{color:var(--primary-color);transition:var(--transition);text-decoration:none}a:hover{opacity:.8}.container{max-width:1200px;margin:0 auto;padding:0 20px}.section{padding:80px 0}.header{background-color:var(--bg-primary);border-bottom:1px solid var(--border-color);z-index:1000;width:100%;transition:var(--transition);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:fixed;top:0}.nav{justify-content:space-between;align-items:center;padding:1rem 0;display:flex}.logo{color:var(--primary-color);align-items:center;gap:10px;font-size:1.5rem;font-weight:700;display:flex}.logo svg{width:32px;height:32px}.nav-menu{align-items:center;gap:2rem;list-style:none;display:flex}.nav-menu a{color:var(--text-primary);transition:var(--transition);font-weight:500;position:relative}.nav-menu a:after{content:"";background-color:var(--primary-color);width:0;height:2px;transition:width .3s;position:absolute;bottom:-5px;left:0}.nav-menu a:hover:after,.nav-menu a.active:after{width:100%}.nav-menu a:hover{color:var(--primary-color)}.theme-toggle{background:var(--bg-secondary);border:1px solid var(--border-color);cursor:pointer;transition:var(--transition);border-radius:20px;align-items:center;gap:8px;padding:8px 12px;display:flex}.theme-toggle:hover{border-color:var(--primary-color);transform:scale(1.05)}.theme-icon{font-size:1.2rem}.menu-toggle{cursor:pointer;flex-direction:column;gap:4px;display:none}.menu-toggle span{background-color:var(--text-primary);width:25px;height:3px;transition:var(--transition)}.hero{background:linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);padding:180px 0 100px;position:relative;overflow:hidden}.hero-content{z-index:2;text-align:center;max-width:800px;margin:0 auto;position:relative}.hero h1{margin-bottom:1.5rem;font-size:3.5rem;animation:.8s fadeInUp}.hero h1 span{color:var(--primary-color)}.hero p{margin-bottom:2rem;font-size:1.25rem;animation:.8s .2s both fadeInUp}.hero-buttons{justify-content:center;gap:1rem;animation:.8s .4s both fadeInUp;display:flex}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.btn{cursor:pointer;transition:var(--transition);text-align:center;border:none;border-radius:8px;padding:14px 32px;font-size:1rem;font-weight:600;display:inline-block}.btn-primary{background-color:var(--primary-color);color:#000;box-shadow:0 4px 15px #c2f7114d}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 6px 20px #c2f71166}.btn-secondary{color:var(--text-primary);border:2px solid var(--border-color);background-color:#0000}.btn-secondary:hover{border-color:var(--primary-color);color:var(--primary-color);transform:translateY(-3px)}.tools-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:3rem;display:grid}.tool-card{background-color:var(--bg-secondary);border:1px solid var(--border-color);transition:var(--transition);border-radius:12px;padding:2rem;position:relative;overflow:hidden}.tool-card:before{content:"";background:linear-gradient(90deg, var(--primary-color), transparent);width:100%;height:4px;transition:transform .3s;position:absolute;top:0;left:0;transform:scaleX(0)}.tool-card:hover:before{transform:scaleX(1)}.tool-card:hover{box-shadow:0 10px 30px var(--shadow);border-color:var(--primary-color);transform:translateY(-10px)}.tool-icon{background:linear-gradient(135deg, var(--primary-color), #a5d610);width:60px;height:60px;transition:var(--transition);border-radius:12px;justify-content:center;align-items:center;margin-bottom:1.5rem;display:flex}.tool-card:hover .tool-icon{transform:scale(1.1)rotate(5deg)}.tool-icon svg{fill:#000;width:32px;height:32px}.tool-card h3{color:var(--text-primary);margin-bottom:1rem}.tool-card p{color:var(--text-secondary);margin-bottom:1.5rem}.features-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-top:3rem;display:grid}.feature-item{text-align:center;background-color:var(--bg-secondary);transition:var(--transition);border-radius:12px;padding:2rem}.feature-item:hover{box-shadow:0 8px 25px var(--shadow);transform:translateY(-5px)}.feature-icon{color:var(--primary-color);margin-bottom:1rem;font-size:3rem}.qr-interface{background-color:var(--bg-secondary);border:1px solid var(--border-color);max-width:800px;box-shadow:0 10px 40px var(--shadow);border-radius:12px;margin:0 auto;padding:3rem}.form-group{margin-bottom:1.5rem}.form-group label{color:var(--text-primary);margin-bottom:.5rem;font-weight:600;display:block}.form-group input,.form-group select,.form-group textarea{border:1px solid var(--border-color);background-color:var(--bg-primary);width:100%;color:var(--text-primary);transition:var(--transition);border-radius:8px;padding:12px 16px;font-size:1rem}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #c2f7111a}.qr-output{background-color:var(--bg-primary);text-align:center;border:2px dashed var(--border-color);border-radius:12px;margin-top:2rem;padding:2rem}#qrcode-container,#qr-result{justify-content:center;align-items:center;min-height:200px;margin:2rem auto;display:flex}#qrcode-container canvas,#qrcode-container img{max-width:100%;height:auto}.qr-actions{flex-wrap:wrap;justify-content:center;gap:1rem;margin-top:1.5rem;display:flex}#reader{border:2px solid var(--border-color);border-radius:12px;max-width:600px;margin:2rem auto;overflow:hidden}.history-list{margin-top:2rem}.history-item{background-color:var(--bg-secondary);border:1px solid var(--border-color);transition:var(--transition);border-radius:8px;justify-content:space-between;align-items:center;margin-bottom:1rem;padding:1rem;display:flex}.history-item:hover{border-color:var(--primary-color);transform:translate(5px)}.history-content{flex:1}.history-time{color:var(--text-secondary);font-size:.875rem}.history-text{word-break:break-all;margin-top:.5rem}.history-actions{gap:.5rem;display:flex}.btn-small{padding:8px 16px;font-size:.875rem}.blog-grid{grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:2rem;margin-top:3rem;display:grid}.blog-card{background-color:var(--bg-secondary);border:1px solid var(--border-color);transition:var(--transition);border-radius:12px;overflow:hidden}.blog-card:hover{box-shadow:0 10px 30px var(--shadow);transform:translateY(-10px)}.blog-image{background:linear-gradient(135deg, var(--primary-color), #a5d610);justify-content:center;align-items:center;width:100%;height:200px;display:flex}.blog-content{padding:2rem}.blog-meta{color:var(--text-secondary);gap:1rem;margin-bottom:1rem;font-size:.875rem;display:flex}.contact-form{max-width:600px;margin:0 auto}.footer{background-color:var(--bg-secondary);border-top:1px solid var(--border-color);margin-top:4rem;padding:3rem 0 1rem}.footer-content{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem;display:grid}.footer-section h4{color:var(--primary-color);margin-bottom:1rem}.footer-links{list-style:none}.footer-links li{margin-bottom:.5rem}.footer-links a{color:var(--text-secondary);transition:var(--transition)}.footer-links a:hover{color:var(--primary-color);padding-left:5px}.social-links{gap:1rem;margin-top:1rem;display:flex}.social-icon{background-color:var(--bg-primary);border:1px solid var(--border-color);width:40px;height:40px;transition:var(--transition);border-radius:50%;justify-content:center;align-items:center;display:flex}.social-icon:hover{background-color:var(--primary-color);border-color:var(--primary-color);transform:translateY(-3px)}.footer-bottom{text-align:center;border-top:1px solid var(--border-color);color:var(--text-secondary);padding-top:2rem}.alert{border-radius:8px;margin-bottom:1rem;padding:1rem 1.5rem;animation:.3s slideIn}.alert-success{border:1px solid var(--primary-color);color:var(--primary-color);background-color:#c2f7111a}.alert-error{color:#ff3b30;background-color:#ff3b301a;border:1px solid #ff3b30}.alert-warning{color:#fc0;background-color:#ffcc001a;border:1px solid #fc0}@keyframes slideIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.spinner{border:3px solid var(--border-color);border-top:3px solid var(--primary-color);border-radius:50%;width:40px;height:40px;margin:2rem auto;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (width<=768px){.menu-toggle{display:flex}.container{padding:0 16px}.section{padding:60px 0}.hero{padding:140px 0 80px}.nav-menu{background-color:var(--bg-primary);border-top:1px solid var(--border-color);flex-direction:column;justify-content:flex-start;width:100%;height:calc(100vh - 70px);padding:2rem;transition:left .3s;position:fixed;top:70px;left:-100%}.nav-menu.active{left:0}.hero h1{font-size:2.5rem}.hero p{font-size:1rem}.hero-buttons{flex-direction:column;align-items:stretch}.tools-grid,.features-grid,.blog-grid{grid-template-columns:1fr;gap:1.25rem}.tool-card{padding:1.25rem}.tool-icon{width:48px;height:48px;margin-bottom:1rem}.tool-card:hover{box-shadow:none;border-color:var(--border-color);transform:none}.features-grid .feature-item{padding:1.25rem}.feature-item:hover{box-shadow:none;transform:none}.qr-interface{padding:1.5rem}.footer{margin-top:3rem;padding:2.5rem 0 1rem}.footer-content{grid-template-columns:1fr;gap:1.5rem}.social-links{justify-content:center}h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}}@media (width<=480px){.hero h1{font-size:1.85rem}.hero p{font-size:.95rem}.hero-buttons .btn{width:100%}.tool-card{padding:1.1rem}.qr-interface{padding:1.25rem}}html{scroll-behavior:smooth}::selection{background-color:var(--primary-color);color:#000}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#a5d610}.text-center{text-align:center}.text-primary{color:var(--primary-color)}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}.mb-3{margin-bottom:3rem}.hidden{display:none}.flex{display:flex}.justify-center{justify-content:center}.align-center{align-items:center}.gap-1{gap:1rem}