@import"https://cdn.bootcdn.net/ajax/libs/font-awesome/6.4.0/css/all.min.css";:root{--hongmeng-blue: #007DFF;--hongmeng-blue-dark: #0066CC;--dark-gray: #333333;--light-gray: #F5F5F5;--white: #FFFFFF;--shadow: 0 0 20px rgba(0, 125, 255, .1);--transition: all .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Microsoft YaHei,PingFang SC,sans-serif;color:var(--dark-gray);background:var(--white);overflow-x:hidden}.app{min-height:100vh}.container{width:90%;max-width:1200px;margin:0 auto}.section{padding:80px 0}.section-title{text-align:center;margin-bottom:60px}.section-title h2{font-size:32px;color:var(--dark-gray);margin-bottom:15px;position:relative;display:block;text-align:center}.section-title h2:after{content:"";position:absolute;bottom:-8px;left:50%;transform:translate(-50%);width:60px;height:3px;background:var(--hongmeng-blue)}.section-title p{font-size:16px;color:#666;max-width:800px;margin:0 auto}.btn{display:inline-block;background:var(--hongmeng-blue);color:var(--white);padding:12px 30px;border:none;border-radius:4px;cursor:pointer;font-size:16px;transition:var(--transition);border:1px solid transparent;text-decoration:none}.btn:hover{background:var(--hongmeng-blue-dark);box-shadow:var(--shadow)}.btn-outline{background:var(--white);color:var(--hongmeng-blue);border-color:var(--hongmeng-blue)}.btn-outline:hover{background:var(--hongmeng-blue);color:var(--white)}.nav{position:fixed;top:0;left:0;width:100%;background:var(--white);box-shadow:var(--shadow);z-index:999;padding:15px 0;transition:var(--transition)}.nav.scroll{padding:10px 0;background:#fffffffa}.nav .container{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;font-size:24px;font-weight:700;color:var(--hongmeng-blue)}.logo img{height:40px;margin-right:10px}.nav-menu{display:flex;list-style:none}.nav-menu li{margin-left:30px;font-size:16px;color:var(--dark-gray);cursor:pointer;transition:var(--transition);position:relative}.nav-menu li:hover{color:var(--hongmeng-blue)}.nav-menu li.active:after{content:"";position:absolute;bottom:-5px;left:0;width:100%;height:2px;background:var(--hongmeng-blue)}.nav-menu li.active{color:var(--hongmeng-blue);font-weight:700}.nav-hamburger{display:none;font-size:24px;color:var(--hongmeng-blue);cursor:pointer}.mobile-menu{display:none;position:fixed;top:70px;left:0;width:100%;background:var(--white);box-shadow:var(--shadow);z-index:998;padding:20px}.mobile-menu ul{list-style:none}.mobile-menu li{padding:15px 0;font-size:16px;border-bottom:1px solid #eee;cursor:pointer}.float-btn{position:fixed;bottom:30px;right:30px;z-index:998}.float-btn .btn{border-radius:50px;padding:15px 20px;box-shadow:0 5px 15px #007dff4d}.float-btn .btn i{margin-right:8px}.banner{min-height:100vh;background:url(/images/smart-window.png) center center / cover 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h3{font-size:20px;margin-bottom:15px}.advantage-item p{color:#666;font-size:14px;line-height:1.6}.features{background:var(--light-gray)}.features-list{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.feature-item{background:var(--white);border-radius:8px;overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}.feature-item:hover{transform:translateY(-10px)}.feature-img{height:200px;overflow:hidden}.feature-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}.feature-item:hover .feature-img img{transform:scale(1.05)}.feature-content{padding:30px}.feature-content .hongmeng-tag{display:inline-block;background:var(--hongmeng-blue);color:var(--white);padding:5px 10px;border-radius:4px;font-size:12px;margin-bottom:15px}.feature-content h3{font-size:22px;margin-bottom:15px}.feature-content ul{list-style:none;margin-bottom:20px}.feature-content ul li{margin-bottom:10px;color:#666;font-size:14px;display:flex;align-items:center}.feature-content ul li i{color:var(--hongmeng-blue);margin-right:8px}.scenes{background:var(--white)}.scenes-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.scene-item{border-radius:8px;overflow:hidden;position:relative;height:250px;cursor:pointer}.scene-item img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}.scene-item:hover img{transform:scale(1.05)}.scene-item .scene-mask{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(to top,rgba(0,0,0,.8) 0%,transparent 60%);display:flex;flex-direction:column;justify-content:flex-end;padding:20px;color:var(--white)}.scene-item .scene-mask h3{font-size:18px;margin-bottom:8px}.scene-item .scene-mask p{font-size:13px;color:#fffc}@media(max-width:992px){.scenes-list{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.scenes-list{grid-template-columns:1fr}.scene-item{height:200px}}.certifications{background:var(--light-gray);padding:80px 0}.certifications .container{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center}.cert-left{flex:1;min-width:300px;margin-bottom:30px}.cert-right{flex:1;min-width:300px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.cert-item{background:var(--white);padding:20px;border-radius:8px;text-align:center;cursor:pointer;transition:var(--transition)}.cert-item:hover{box-shadow:var(--shadow)}.cert-item img{width:80px;height:auto;margin-bottom:10px}.cert-item p{font-size:14px;color:#666}.cases{background:var(--white);padding:80px 0}.cases-list{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.case-item{border-radius:8px;overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}.case-item:hover{transform:translateY(-10px)}.case-img{height:200px;overflow:hidden}.case-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}.case-item:hover .case-img img{transform:scale(1.05)}.case-content{padding:20px;background:var(--white)}.case-content h3{font-size:18px;margin-bottom:10px}.case-content p{font-size:14px;color:#666;line-height:1.6}.cooperation{background:linear-gradient(135deg,var(--hongmeng-blue) 0%,var(--hongmeng-blue-dark) 100%);color:var(--white);padding:100px 0;text-align:center}.cooperation h2{font-size:36px;margin-bottom:20px}.cooperation p{font-size:18px;max-width:800px;margin:0 auto 40px;opacity:.9}.footer{background:var(--dark-gray);color:#ccc;padding:60px 0 30px}.footer .container{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:40px}.footer-col h3{font-size:18px;color:var(--white);margin-bottom:20px;position:relative;padding-bottom:10px}.footer-col h3:after{content:"";position:absolute;bottom:0;left:0;width:40px;height:2px;background:var(--hongmeng-blue)}.footer-col ul{list-style:none}.footer-col ul li{margin-bottom:10px;transition:var(--transition)}.footer-col ul li:hover{color:var(--hongmeng-blue);padding-left:5px}.footer-col .contact-info li{display:flex;align-items:flex-start}.footer-col .contact-info li i{color:var(--hongmeng-blue);margin-right:10px;margin-top:4px}.footer-col .qrcode{width:120px;height:120px;background:var(--white);padding:5px;margin-bottom:10px}.footer-col .qrcode img{width:100%;height:100%;object-fit:cover}.footer-bottom{text-align:center;padding-top:30px;border-top:1px solid #444;font-size:14px}.footer-bottom p{margin-bottom:10px}.footer-bottom .icp{color:#999}.modal{display:flex;position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;z-index:9999;justify-content:center;align-items:center}.modal-content{max-width:90%;max-height:90%}.modal-content img{width:100%;height:auto;border-radius:8px}.modal-close{position:absolute;top:20px;right:30px;color:var(--white);font-size:30px;cursor:pointer}@media(max-width:992px){.advantages-list,.features-list,.cases-list,.footer .container{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.nav-menu{display:none}.nav-hamburger,.mobile-menu{display:block}.banner-text h1{font-size:32px}.banner-text p{font-size:16px}.advantages-list,.features-list{grid-template-columns:1fr}.cert-right{grid-template-columns:repeat(2,1fr)}.cases-list,.footer .container{grid-template-columns:1fr}.float-btn{bottom:20px;right:20px}.float-btn .btn{padding:12px 15px;font-size:14px}.float-btn .btn span{display:none}.float-btn .btn i{margin-right:0}}html,body,#app{margin:0;padding:0;min-height:100vh}