:root{--primary-color:#007bff;--primary-hover-color:#0056b3;--dark-color:#333;--light-color:#666;--bg-color:#fff;--section-bg-color:#f9f9f9;--border-color:#eee}body{color:var(--dark-color);background-color:var(--bg-color);margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}.container{max-width:1100px;margin:0 auto;padding:0 20px}h1,h2,h3{color:var(--dark-color);line-height:1.2}h1{font-size:3rem}h2{text-align:center;margin-bottom:50px;font-size:2.5rem}p{color:var(--light-color)}a{color:var(--primary-color);text-decoration:none}.btn{text-align:center;border-radius:5px;padding:12px 28px;font-size:16px;font-weight:700;transition:all .3s;display:inline-block}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-hover-color);transform:translateY(-2px)}.btn-secondary{color:var(--dark-color);background-color:#0000;border:1px solid #ccc}.btn-secondary:hover{background-color:#f1f1f1}section{padding:80px 0}.header{background:var(--bg-color);border-bottom:1px solid var(--border-color);z-index:1000;padding:20px 0;position:sticky;top:0}.header .container{justify-content:space-between;align-items:center;display:flex}.logo{color:var(--dark-color);font-size:1.5rem;font-weight:700}.nav-links a{color:var(--light-color);margin:0 15px;font-weight:500}.nav-links a:hover{color:var(--primary-color)}.hero{text-align:center;background:linear-gradient(#fffc,#fffc),url(img/hero-bg.jpg) 50%/cover no-repeat;padding:100px 0}.hero h1{margin-bottom:20px}.hero p{max-width:600px;margin:0 auto 30px;font-size:1.2rem}.hero .cta-buttons .btn{margin:0 10px}.features{background:var(--section-bg-color)}.features-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px;display:grid}.feature-card{text-align:center;border:1px solid var(--border-color);background:#fff;border-radius:8px;padding:30px;transition:transform .3s,box-shadow .3s}.feature-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px #0000000d}.feature-card .icon{color:var(--primary-color);margin-bottom:20px;font-size:3rem}.feature-card h3{margin-bottom:15px;font-size:1.5rem}.showcase-grid{align-items:center;gap:50px;display:flex}.showcase-text,.showcase-img{flex:1}.showcase-img img{border-radius:8px;width:100%;box-shadow:0 15px 30px #0000001a}.showcase-text h2{text-align:left}.showcase-text ul{padding:0;list-style:none}.showcase-text li{color:var(--light-color);margin-bottom:15px;font-size:1.1rem}.showcase-text li:before{content:"✓";color:var(--primary-color);margin-right:10px;font-weight:700}.testimonials{background:var(--section-bg-color)}.testimonials-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;display:grid}.testimonial-card{border-left:5px solid var(--primary-color);background:#fff;border-radius:5px;padding:30px;box-shadow:0 5px 15px #0000000d}.testimonial-card p.quote{margin-bottom:20px;font-style:italic}.testimonial-card p.author{text-align:right;color:var(--dark-color);font-weight:700}.final-cta{text-align:center;background-color:var(--dark-color);color:#fff}.final-cta h2{color:#fff}.final-cta p{color:#ccc;margin-bottom:30px}.footer{color:#ccc;background:#222;padding:50px 0;font-size:.9rem}.footer-grid{grid-template-columns:repeat(4,1fr);gap:30px;display:grid}.footer-col h4{color:#fff;margin-bottom:15px}.footer-col ul{padding:0;list-style:none}.footer-col ul li{margin-bottom:10px}.footer-col ul li a{color:#ccc}.footer-col ul li a:hover{color:var(--primary-color)}.footer-bottom{text-align:center;border-top:1px solid #444;margin-top:40px;padding-top:20px}@media (width<=768px){h1{font-size:2.5rem}h2{font-size:2rem}.header .container{flex-direction:column}.nav-links{margin-top:15px}.nav-links a{margin:0 8px}.header .cta-buttons{display:none}.showcase-grid{flex-direction:column}.showcase-text h2{text-align:center}.footer-grid{grid-template-columns:1fr 1fr}}@media (width<=480px){.footer-grid{grid-template-columns:1fr}}.tabs{border:1px solid var(--border-color);background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 5px 15px #0000000d}.tab-buttons{border-bottom:1px solid var(--border-color);background:#f9f9f9;display:flex}.tab-button{cursor:pointer;color:var(--light-color);background:0 0;border:none;flex-grow:1;padding:15px 25px;font-size:16px;font-weight:500;transition:all .3s}.tab-button:hover{color:var(--dark-color);background:#f1f1f1}.tab-button.active{color:var(--primary-color);border-bottom:2px solid var(--primary-color);background:#fff}.tab-content{padding:30px;display:none}.tab-content.active{display:block}.strategy-grid{align-items:center;gap:40px;display:flex}.strategy-text{flex:3}.strategy-img{flex:2}.strategy-img img{border-radius:8px;width:100%}.strategy-text h3{margin-bottom:20px;font-size:1.8rem}.strategy-text ol{padding-left:20px}.strategy-text ol li{margin-bottom:15px}@media (width<=768px){.strategy-grid{flex-direction:column-reverse}.tab-buttons{flex-direction:column}.tab-button.active{border-bottom:none;border-left:2px solid var(--primary-color)}}.floating-contact{z-index:1000;position:fixed;bottom:80px;right:20px}.qq-icon-wrapper{cursor:pointer;position:relative}.qq-icon{background:#fff;border-radius:50%;width:50px;height:50px;padding:5px;transition:transform .3s;box-shadow:0 4px 12px #00000026}.qq-icon:hover{transform:scale(1.1)}.qq-qrcode-popup{text-align:center;opacity:0;visibility:hidden;background:#fff;border-radius:10px;width:160px;padding:15px;transition:all .3s;position:absolute;bottom:0;right:70px;transform:translateY(10px);box-shadow:0 4px 20px #0003}.qq-icon-wrapper:hover .qq-qrcode-popup{opacity:1;visibility:visible;transform:translateY(0)}.qq-qrcode-popup img{width:100%}.qq-qrcode-popup p{color:var(--dark-color);margin:5px 0 0;font-size:14px}