*{margin:0;padding:0;box-sizing:border-box}
html{overflow-x:hidden}
body{font-family:Montserrat,'Microsoft YaHei','PingFang SC',sans-serif;color:#808285;background:#fff;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:#4169e1;text-decoration:none;transition:all .2s linear}
a:hover{color:#191970}
img{max-width:100%;height:auto;vertical-align:middle}
ul{list-style:none;margin:0;padding:0}

.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{background:#fff;border-bottom:1px solid #e6e6e6;position:sticky;top:0;z-index:99}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px;padding:0 20px;max-width:1200px;margin:0 auto}
.logo img{width:128px;height:auto}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav>li{position:relative}
.main-nav>li>a{display:block;padding:0 1em;line-height:70px;color:#222;font-size:14px;font-weight:500}
.main-nav>li:hover>a,.main-nav>li.current>a{color:#0274be}
.main-nav .sub-menu{display:none;position:absolute;top:100%;left:0;width:220px;background:#fff;box-shadow:0 4px 10px -2px rgba(0,0,0,.1);z-index:999;border:1px solid #e6e6e6}
.main-nav .menu-item-has-children:hover>.sub-menu{display:block}
.main-nav .sub-menu a{display:block;padding:12px 16px;font-size:13px;color:#222;border-bottom:1px solid #e6e6e6}
.main-nav .sub-menu a:hover{background:#f5f5f5;color:#0274be}
.main-nav .sub-menu li:last-child a{border-bottom:none}

/* Mobile menu */
.mobile-menu-toggle{display:none;background:none;border:none;font-size:30px;cursor:pointer;color:#000;padding:0 5px;font-weight:900;font-family:'SimHei','Microsoft YaHei','PingFang SC',sans-serif;line-height:70px;height:70px}
.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:998}
.mobile-menu-panel{display:none;position:fixed;top:0;left:-300px;width:300px;height:100%;background:#fff;z-index:999;overflow-y:auto;transition:left .3s ease;padding:20px}
.mobile-menu-panel.open{left:0}
.mobile-menu-overlay.open{display:block}
.mobile-menu-panel .close-btn{float:right;background:none;border:none;font-size:28px;cursor:pointer;color:#222;margin-bottom:20px;font-weight:900;font-family:'SimHei','Microsoft YaHei','PingFang SC',sans-serif}
.mobile-menu-panel ul li a{display:block;padding:12px 0;border-bottom:1px solid #e6e6e6;color:#222;font-size:15px}
.mobile-menu-panel .sub-menu{padding-left:20px}
.mobile-menu-panel .sub-menu a{font-size:14px}

/* Carousel */
.carousel{position:relative;width:100%;overflow:hidden}
.carousel-inner{display:flex;transition:transform .5s ease}
.carousel-slide{min-width:100%;position:relative}
.carousel-slide img{width:100%;display:block}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);width:45px;height:45px;background:rgba(0,0,0,.3);color:#fff;border:none;font-size:22px;cursor:pointer;z-index:10;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .3s}
.carousel-arrow:hover{background:rgba(0,0,0,.6)}
.carousel-arrow.prev{left:15px}
.carousel-arrow.next{right:15px}
.carousel-pagination{position:absolute;bottom:15px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}
.carousel-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:background .3s;border:1px solid rgba(0,0,0,.1)}
.carousel-dot.active{background:#fff}

/* Section spacing */
.section-padding{padding:60px 0}
.section-title{text-align:center;font-size:28px;color:#333;margin-bottom:40px;font-weight:600}

/* Product Grid */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;max-width:1140px;margin:0 auto;padding:0 20px}
.product-card{text-align:center;transition:transform .3s}
.product-card:hover{transform:translateY(-5px)}
.product-card img{width:100%;border-radius:12px;margin-bottom:15px}
.product-card h3{font-size:20px;color:#333;margin-bottom:10px;font-weight:600}
.product-card h3 a{color:#333}
.product-card h3 a:hover{color:#0274be}
.product-card p{font-size:14px;color:#666;line-height:1.8;text-align:justify;padding:0 10px}

/* Footer */
.site-footer{background:#f5f5f5;border-top:1px solid #e6e6e6}
.footer-main{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;padding:45px 20px;max-width:1140px;margin:0 auto}
.footer-col h2{font-size:16px;color:#333;margin-bottom:20px;font-weight:600}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:#666;font-size:14px}
.footer-col ul li a:hover{color:#0274be}
.footer-col p{font-size:14px;color:#666;line-height:1.8}
.footer-col .qr-img{width:100px;height:auto;margin-bottom:15px}
.footer-col .contact-info div{margin-bottom:6px;font-size:13px;color:#666}
.footer-col .contact-info a{color:#4169e1;font-size:13px}
.footer-col .contact-info a:hover{color:#191970}

/* Copyright */
.copyright{text-align:center;padding:20px;border-top:1px solid #e6e6e6;font-size:13px;color:#808080}
.copyright a{color:#808080}
.copyright a:hover{color:#333}
.copyright img{width:20px;height:20px;vertical-align:middle}

/* Page header */
.page-header{text-align:center;padding:60px 20px 30px;background:#f8f8f8;display:flex;align-items:center;justify-content:center}
.page-header h1{font-size:32px;color:#333;font-weight:600}

/* About/Contact page */
.about-section{padding:40px 20px;max-width:1140px;margin:0 auto}
.about-content{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.about-content img{width:100%;max-width:400px}
.about-text{font-size:14px;color:#555;line-height:2}
.about-text p{margin-bottom:15px;text-indent:2em}

/* Contact grid */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;padding:40px 20px;max-width:1140px;margin:0 auto}
.contact-grid .contact-item h4{font-size:14px;color:#333;margin-bottom:10px;font-weight:600}
.contact-grid .contact-item img{width:120px;height:auto;margin:0 auto;display:block}
.contact-grid .contact-item .qr-code{width:120px;height:120px;object-fit:contain}

/* Address section */
.address-section{padding:30px 20px 60px;max-width:1140px;margin:0 auto}
.address-section p{font-size:14px;color:#555;line-height:2}

/* Product page img */
.product-page-content{max-width:1140px;margin:0 auto;padding:30px 20px}
.product-page-content img{width:100%;display:block;margin-bottom:0}

/* Empty spacer section */
.spacer-section{height:30px}

/* Text page content */
.text-page-content{max-width:800px;margin:0 auto;padding:40px 20px;font-size:15px;color:#555;line-height:1.9}

@media(max-width:768px){
  .main-nav{display:none}
  .mobile-menu-toggle{display:block}
  .product-grid{grid-template-columns:1fr;max-width:400px}
  .footer-main{grid-template-columns:1fr;gap:30px}
  .about-content{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .carousel-arrow{width:35px;height:35px;font-size:16px}
}

@media(min-width:769px){
  .mobile-menu-toggle{display:none}
  .mobile-menu-panel,.mobile-menu-overlay{display:none!important}
}