*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;line-height:1.6;color:#333;background-color:#fff;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color .3s ease}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button{border:none;background:none;cursor:pointer;font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section-header{text-align:center;margin-bottom:50px}
.section-title{font-size:2.25rem;font-weight:700;color:#1a1a2e;margin-bottom:15px;position:relative;display:inline-block}
.section-title::after{content:'';position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,#f7931a,#ff6b00);border-radius:2px}
.section-subtitle{font-size:1.1rem;color:#666;max-width:700px;margin:20px auto 0}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.98);box-shadow:0 2px 20px rgba(0,0,0,0.08);transition:all .3s ease}
.header-container{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:15px 20px}
.logo{display:flex;align-items:baseline;gap:5px}
.logo-text{font-size:1.5rem;font-weight:800;color:#1a1a2e;letter-spacing:2px}
.logo-sub{font-size:0.75rem;color:#f7931a;font-weight:500}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:5px;z-index:1001}
.nav-toggle-bar{width:25px;height:2px;background:#1a1a2e;transition:all .3s ease;border-radius:2px}
.main-nav{display:flex;align-items:center}
.nav-list{display:flex;gap:30px}
.nav-link{font-size:0.95rem;color:#444;font-weight:500;position:relative;padding:5px 0;transition:color .3s ease}
.nav-link::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:#f7931a;transition:width .3s ease}
.nav-link:hover{color:#f7931a}
.nav-link:hover::after{width:100%}
.hero-section{position:relative;height:100vh;min-height:600px;max-height:900px;overflow:hidden;margin-top:70px}
.hero-slider{position:relative;width:100%;height:100%}
.hero-slide{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;transition:opacity .8s ease;pointer-events:none}
.hero-slide.active{opacity:1;pointer-events:auto}
.hero-image{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(26,26,46,0.85) 0%,rgba(26,26,46,0.6) 50%,rgba(26,26,46,0.4) 100%);display:flex;align-items:center;justify-content:flex-start;padding:0 10%}
.hero-content{max-width:600px;color:#fff}
.hero-title{font-size:3rem;font-weight:800;margin-bottom:20px;line-height:1.2;text-shadow:0 2px 10px rgba(0,0,0,0.3)}
.hero-desc{font-size:1.15rem;line-height:1.8;margin-bottom:30px;opacity:0.95}
.hero-btn{display:inline-block;padding:15px 40px;background:linear-gradient(135deg,#f7931a,#ff6b00);color:#fff;font-size:1rem;font-weight:600;border-radius:50px;transition:all .3s ease;box-shadow:0 5px 20px rgba(247,147,26,0.4)}
.hero-btn:hover{transform:translateY(-3px);box-shadow:0 8px 30px rgba(247,147,26,0.5)}
.hero-dots{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;gap:12px;z-index:10}
.hero-dot{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,0.4);border:2px solid rgba(255,255,255,0.6);transition:all .3s ease;cursor:pointer}
.hero-dot.active{background:#f7931a;border-color:#f7931a;transform:scale(1.2)}
.intro-section{padding:100px 0;background:#f8f9fa}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.intro-text h2{margin-bottom:25px}
.intro-text p{color:#555;margin-bottom:20px;font-size:1.05rem}
.intro-image img{border-radius:15px;box-shadow:0 20px 50px rgba(0,0,0,0.1)}
.products-section{padding:100px 0;background:#fff}
.products-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px}
.product-card{background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 10px 40px rgba(0,0,0,0.08);transition:all .3s ease;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-10px);box-shadow:0 20px 60px rgba(0,0,0,0.12)}
.product-image-wrap{background:linear-gradient(135deg,#f5f7fa 0%,#e4e8ec 100%);padding:40px;display:flex;align-items:center;justify-content:center;min-height:280px}
.product-image{max-height:200px;width:auto;transition:transform .5s ease}
.product-card:hover .product-image{transform:scale(1.08)}
.product-info{padding:30px;flex:1;display:flex;flex-direction:column}
.product-name{font-size:1.5rem;font-weight:700;color:#1a1a2e;margin-bottom:15px}
.product-desc{color:#555;font-size:0.95rem;line-height:1.7;margin-bottom:20px;flex:1}
.product-features{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:25px}
.product-features li{font-size:0.85rem;color:#666;background:#f5f7fa;padding:6px 14px;border-radius:20px}
.product-btn{display:inline-block;padding:12px 30px;background:linear-gradient(135deg,#1a1a2e,#2d2d44);color:#fff;font-size:0.95rem;font-weight:500;border-radius:8px;text-align:center;transition:all .3s ease}
.product-btn:hover{background:linear-gradient(135deg,#f7931a,#ff6b00);transform:translateY(-2px)}
.compare-section{padding:80px 0;background:#f8f9fa}
.compare-table-wrap{overflow-x:auto;border-radius:15px;box-shadow:0 10px 40px rgba(0,0,0,0.08)}
.compare-table{width:100%;min-width:700px;border-collapse:collapse;background:#fff}
.compare-table th,.compare-table td{padding:18px 20px;text-align:center;border-bottom:1px solid #eee}
.compare-table th{background:#1a1a2e;color:#fff;font-weight:600;font-size:0.95rem}
.compare-table th:first-child{text-align:left;border-radius:15px 0 0 0}
.compare-table th:last-child{border-radius:0 15px 0 0}
.compare-table td:first-child{text-align:left;font-weight:600;color:#1a1a2e;background:#f8f9fa}
.compare-table tbody tr:hover{background:#fffaf5}
.compare-table tbody tr:last-child td:first-child{border-radius:0 0 0 15px}
.compare-table tbody tr:last-child td:last-child{border-radius:0 0 15px 0}
.features-section{padding:100px 0;background:#fff}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.feature-item{text-align:center;padding:40px 30px;background:#f8f9fa;border-radius:20px;transition:all .3s ease}
.feature-item:hover{background:#fff;box-shadow:0 15px 50px rgba(0,0,0,0.1);transform:translateY(-5px)}
.feature-icon{width:80px;height:80px;margin:0 auto 25px;border-radius:50%;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,0.1)}
.feature-icon img{width:100%;height:100%;object-fit:cover}
.feature-title{font-size:1.25rem;font-weight:700;color:#1a1a2e;margin-bottom:15px}
.feature-desc{color:#666;font-size:0.95rem;line-height:1.7}
.security-section{padding:100px 0;background:linear-gradient(135deg,#1a1a2e 0%,#2d2d44 100%);color:#fff}
.security-grid{display:grid;grid-template-columns:1.2fr 0.8fr;gap:60px;align-items:center}
.security-content h2{color:#fff;margin-bottom:25px}
.security-content h2::after{background:linear-gradient(90deg,#f7931a,#ff6b00)}
.security-content>p{color:rgba(255,255,255,0.85);font-size:1.05rem;margin-bottom:35px}
.security-points{display:flex;flex-direction:column;gap:25px}
.security-point{background:rgba(255,255,255,0.08);padding:25px;border-radius:12px;border-left:4px solid #f7931a}
.security-point h4{font-size:1.1rem;margin-bottom:10px;color:#f7931a}
.security-point p{color:rgba(255,255,255,0.8);font-size:0.95rem}
.security-image img{border-radius:15px;box-shadow:0 20px 60px rgba(0,0,0,0.3)}
.gallery-section{padding:100px 0;background:#f8f9fa}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:20px}
.gallery-item{border-radius:15px;overflow:hidden;position:relative}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gallery-item:hover img{transform:scale(1.1)}
.gallery-item-wide{grid-column:span 2}
.gallery-item-tall{grid-row:span 2}
.download-section{padding:100px 0;background:#fff}
.download-content{display:flex;flex-direction:column;gap:50px}
.download-intro{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.download-intro img{border-radius:15px;box-shadow:0 15px 40px rgba(0,0,0,0.1)}
.download-text h3{font-size:1.5rem;color:#1a1a2e;margin-bottom:20px}
.download-text p{color:#555;margin-bottom:15px;font-size:1rem}
.download-platforms{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.platform-card{background:#f8f9fa;padding:40px;border-radius:20px;text-align:center;transition:all .3s ease}
.platform-card:hover{background:#fff;box-shadow:0 15px 50px rgba(0,0,0,0.1)}
.platform-card h4{font-size:1.25rem;color:#1a1a2e;margin-bottom:15px}
.platform-card p{color:#666;font-size:0.95rem;margin-bottom:25px}
.download-btn{display:inline-block;padding:14px 35px;background:linear-gradient(135deg,#f7931a,#ff6b00);color:#fff;font-size:1rem;font-weight:600;border-radius:8px;transition:all .3s ease}
.download-btn:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(247,147,26,0.4)}
.guide-section{padding:100px 0;background:#f8f9fa}
.guide-steps{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:30px}
.guide-step{display:flex;gap:25px;align-items:flex-start;background:#fff;padding:30px;border-radius:15px;box-shadow:0 5px 20px rgba(0,0,0,0.05);transition:all .3s ease}
.guide-step:hover{transform:translateX(10px);box-shadow:0 10px 30px rgba(0,0,0,0.1)}
.step-number{font-size:2rem;font-weight:800;color:#f7931a;min-width:60px}
.step-content h4{font-size:1.2rem;color:#1a1a2e;margin-bottom:10px}
.step-content p{color:#666;font-size:0.95rem}
.faq-section{padding:100px 0;background:#fff}
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:15px}
.faq-item{background:#f8f9fa;border-radius:12px;overflow:hidden;transition:all .3s ease}
.faq-item[open]{background:#fff;box-shadow:0 10px 30px rgba(0,0,0,0.08)}
.faq-question{padding:20px 25px;font-size:1.05rem;font-weight:600;color:#1a1a2e;cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none}
.faq-question::-webkit-details-marker{display:none}
.faq-question::after{content:'+';font-size:1.5rem;color:#f7931a;transition:transform .3s ease}
.faq-item[open] .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 25px 20px;color:#666;font-size:0.95rem;line-height:1.8}
.faq-more{text-align:center;margin-top:50px}
.faq-more p{color:#666;margin-bottom:20px}
.faq-contact-btn{display:inline-block;padding:14px 40px;background:linear-gradient(135deg,#1a1a2e,#2d2d44);color:#fff;font-size:1rem;font-weight:500;border-radius:8px;transition:all .3s ease}
.faq-contact-btn:hover{background:linear-gradient(135deg,#f7931a,#ff6b00)}
.news-section{padding:100px 0;background:#f8f9fa}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.news-card{background:#fff;border-radius:15px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,0.05);transition:all .3s ease}
.news-card:hover{transform:translateY(-8px);box-shadow:0 15px 40px rgba(0,0,0,0.1)}
.news-image{height:180px;overflow:hidden}
.news-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-image img{transform:scale(1.1)}
.news-content{padding:25px}
.news-title{font-size:1.1rem;font-weight:600;color:#1a1a2e;margin-bottom:12px;line-height:1.4}
.news-excerpt{color:#666;font-size:0.9rem;line-height:1.7}
.cta-section{padding:100px 0;background:linear-gradient(135deg,#f7931a 0%,#ff6b00 100%)}
.cta-content{text-align:center;max-width:700px;margin:0 auto}
.cta-title{font-size:2.5rem;font-weight:800;color:#fff;margin-bottom:20px}
.cta-desc{font-size:1.15rem;color:rgba(255,255,255,0.95);margin-bottom:35px}
.cta-btn{display:inline-block;padding:18px 50px;background:#fff;color:#f7931a;font-size:1.1rem;font-weight:700;border-radius:50px;transition:all .3s ease;box-shadow:0 10px 30px rgba(0,0,0,0.2)}
.cta-btn:hover{transform:translateY(-3px);box-shadow:0 15px 40px rgba(0,0,0,0.3)}
.site-footer{background:#1a1a2e;color:#fff;padding:80px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:50px;margin-bottom:50px}
.footer-logo{font-size:1.8rem;font-weight:800;letter-spacing:2px;margin-bottom:20px}
.footer-about{color:rgba(255,255,255,0.7);font-size:0.9rem;line-height:1.8}
.footer-nav-title{font-size:1.1rem;font-weight:600;margin-bottom:20px;color:#f7931a}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(255,255,255,0.7);font-size:0.9rem;transition:color .3s ease}
.footer-links a:hover{color:#f7931a}
.footer-contact p{color:rgba(255,255,255,0.7);font-size:0.9rem;margin-bottom:20px;line-height:1.7}
.footer-contact-btn{display:inline-block;padding:10px 25px;background:#f7931a;color:#fff;font-size:0.9rem;font-weight:500;border-radius:6px;transition:all .3s ease}
.footer-contact-btn:hover{background:#ff6b00}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:30px;text-align:center}
.copyright{color:rgba(255,255,255,0.5);font-size:0.85rem}
.floating-contact{position:fixed;bottom:30px;right:30px;display:flex;align-items:center;gap:10px;padding:15px 25px;background:linear-gradient(135deg,#f7931a,#ff6b00);color:#fff;border-radius:50px;box-shadow:0 5px 25px rgba(247,147,26,0.4);z-index:999;transition:all .3s ease}
.floating-contact:hover{transform:translateY(-5px);box-shadow:0 10px 35px rgba(247,147,26,0.5)}
.floating-icon{font-size:1.3rem}
.floating-text{font-size:0.95rem;font-weight:500}
.mobile-contact-bar{display:none;position:fixed;bottom:0;left:0;right:0;background:#fff;padding:12px 20px;box-shadow:0 -5px 20px rgba(0,0,0,0.1);z-index:999}
.mobile-contact-btn{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px;background:linear-gradient(135deg,#f7931a,#ff6b00);color:#fff;border-radius:10px;font-size:1rem;font-weight:600}
.mobile-contact-icon{font-size:1.2rem}
@media screen and (max-width:1024px){
.section-title{font-size:2rem}
.hero-section{height:80vh;min-height:500px}
.hero-title{font-size:2.5rem}
.hero-desc{font-size:1rem}
.intro-grid{grid-template-columns:1fr;gap:40px}
.intro-image{order:-1}
.products-grid{grid-template-columns:1fr;gap:30px}
.product-card{flex-direction:row}
.product-image-wrap{min-width:250px;min-height:auto}
.features-grid{grid-template-columns:repeat(2,1fr);gap:30px}
.security-grid{grid-template-columns:1fr;gap:40px}
.security-image{order:-1}
.gallery-grid{grid-template-columns:repeat(3,1fr);grid-auto-rows:180px}
.download-intro{grid-template-columns:1fr}
.download-intro img{order:-1}
.news-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:repeat(2,1fr);gap:40px}
}
@media screen and (max-width:768px){
html{font-size:15px}
.header-container{padding:12px 15px}
.logo-text{font-size:1.3rem}
.nav-toggle{display:flex}
.main-nav{position:fixed;top:0;right:-100%;width:80%;max-width:300px;height:100vh;background:#fff;flex-direction:column;justify-content:flex-start;padding:80px 30px 30px;box-shadow:-10px 0 30px rgba(0,0,0,0.1);transition:right .3s ease}
.main-nav.active{right:0}
.nav-list{flex-direction:column;gap:0;width:100%}
.nav-link{display:block;padding:15px 0;border-bottom:1px solid #eee;font-size:1rem}
.nav-toggle.active .nav-toggle-bar:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-toggle.active .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle.active .nav-toggle-bar:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.hero-section{height:auto;min-height:auto;margin-top:60px}
.hero-slide{position:relative}
.hero-slide:not(.active){display:none}
.hero-image{height:50vh;min-height:300px}
.hero-overlay{padding:0 5%;align-items:flex-end;padding-bottom:60px}
.hero-content{max-width:100%}
.hero-title{font-size:1.8rem}
.hero-desc{font-size:0.95rem}
.hero-btn{padding:12px 30px;font-size:0.9rem}
.hero-dots{bottom:20px}
.section-title{font-size:1.6rem}
.section-subtitle{font-size:1rem}
.section-header{margin-bottom:35px}
.intro-section{padding:60px 0}
.products-section{padding:60px 0}
.product-card{flex-direction:column}
.product-image-wrap{min-width:auto;padding:30px;min-height:220px}
.product-image{max-height:160px}
.product-info{padding:25px}
.product-name{font-size:1.3rem}
.product-features li{font-size:0.8rem;padding:5px 10px}
.compare-section{padding:60px 0}
.features-section{padding:60px 0}
.features-grid{grid-template-columns:1fr;gap:20px}
.feature-item{padding:30px 20px}
.feature-icon{width:70px;height:70px}
.security-section{padding:60px 0}
.security-point{padding:20px}
.gallery-section{padding:60px 0}
.gallery-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}
.gallery-item-wide,.gallery-item-tall{grid-column:auto;grid-row:auto}
.download-section{padding:60px 0}
.download-platforms{grid-template-columns:1fr;gap:20px}
.platform-card{padding:30px}
.guide-section{padding:60px 0}
.guide-step{flex-direction:column;gap:15px;padding:25px}
.step-number{font-size:1.5rem;min-width:auto}
.faq-section{padding:60px 0}
.faq-question{padding:18px 20px;font-size:1rem}
.faq-answer{padding:0 20px 18px}
.news-section{padding:60px 0}
.news-grid{grid-template-columns:1fr}
.news-image{height:160px}
.cta-section{padding:60px 0}
.cta-title{font-size:1.8rem}
.cta-desc{font-size:1rem}
.cta-btn{padding:15px 40px;font-size:1rem}
.site-footer{padding:50px 0 100px}
.footer-grid{grid-template-columns:1fr;gap:30px;text-align:center}
.footer-links{align-items:center}
.floating-contact{display:none}
.mobile-contact-bar{display:block}
}
@media screen and (max-width:480px){
html{font-size:14px}
.container{padding:0 15px}
.hero-image{height:45vh;min-height:280px}
.hero-title{font-size:1.5rem}
.hero-overlay{padding-bottom:50px}
.product-image-wrap{padding:25px}
.product-image{max-height:140px}
.section-title{font-size:1.4rem}
.compare-table th,.compare-table td{padding:12px 10px;font-size:0.8rem}
.gallery-grid{grid-template-columns:1fr;grid-auto-rows:200px}
.cta-title{font-size:1.5rem}
.cta-btn{padding:14px 35px;font-size:0.95rem}
}
@media screen and (min-width:769px) and (max-width:1024px){
.product-card{flex-direction:column}
.product-image-wrap{min-width:auto}
}
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important}
}