:root{
 --blue:#0d2b4e;
 --blue-d:#071a35;
 --blue-mid:#0d5198;
 --blue-light:#1a6ab5;
 --lime:#c3d600;
 --lime-dark:#a8b800;
 --gray-bg:#f4f6f9;
 --gray-card:#ffffff;
 --gray-text:#555;
 --text-dark:#1a1a2e;
 --shadow-sm:0 2px 12px rgba(13,43,78,.08);
 --shadow-md:0 6px 24px rgba(13,43,78,.12);
 --shadow-lg:0 12px 40px rgba(13,43,78,.16);
 --radius:10px;
 --radius-lg:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:var(--text-dark);background:#fff;overflow-x:hidden}

/* ====== SCROLLBAR ====== */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:#f0f0f0}
::-webkit-scrollbar-thumb{background:var(--blue-mid);border-radius:3px}

/* ====== HEADER TOP BAR ====== */
.topbar{background:var(--blue);color:rgba(255,255,255,.85);font-size:13px;padding:7px 0}
.topbar a{color:rgba(255,255,255,.85);text-decoration:none;transition:color .2s}
.topbar a:hover{color:#fff}
.topbar .container{display:flex;justify-content:space-between;align-items:center}
.topbar .right span{margin-left:20px;cursor:pointer}
.topbar .right span i{margin-right:5px}

/* ====== NAVBAR ====== */
.navbar-brand{padding:0;margin-right:30px}
.navbar-brand img{height:52px}
.navbar{background:#fff!important;padding:0 0;box-shadow:var(--shadow-sm);transition:box-shadow .3s;position:sticky;top:0;z-index:998}
.navbar.scrolled{box-shadow:var(--shadow-md)}
.nav-item{position:relative}
.nav-link{display:block;font-size:15px;color:#333!important;padding:22px 16px!important;transition:color .2s,background .2s;font-weight:500}
.nav-link:hover,.nav-item.active .nav-link{color:var(--blue-mid)!important}
.nav-link i.fa-chevron-down{font-size:10px;margin-left:3px;transition:transform .3s}
.nav-item:hover .fa-chevron-down{transform:rotate(180deg)}
.dropdown-menu{border:0;border-radius:var(--radius);box-shadow:var(--shadow-md);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s;min-width:180px}
.nav-item:hover .dropdown-menu{display:block;opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-item{font-size:14px;padding:10px 20px;color:#555;transition:all .2s}
.dropdown-item:hover{background:var(--gray-bg);color:var(--blue-mid)}
.search-box{display:flex;align-items:center;border:1px solid #ddd;border-radius:25px;padding:4px 16px;margin-left:20px;transition:border-color .3s}
.search-box:focus-within{border-color:var(--blue-mid)}
.search-box input{border:0;outline:0;font-size:13px;width:120px;background:transparent}
.search-box button{border:0;background:none;color:#999;cursor:pointer;padding:0 4px}
.search-box button:hover{color:var(--blue-mid)}

/* ====== BANNER ====== */
/* ====== BANNER ====== */
.banner-wrap{margin-top:0;position:relative;padding-top:36px}
.banner-wrap .swiper-slide{position:relative;height:520px;overflow:hidden}
.banner-wrap .swiper-slide img{width:100%;height:100%;object-fit:cover;transition:transform 8s ease}
.banner-wrap .swiper-slide.swiper-slide-active img{transform:scale(1.05)}
.banner-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(13,43,78,.75) 0%,rgba(13,81,152,.4) 100%);z-index:1}
.banner-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;width:1200px;max-width:90%;text-align:center;color:#fff}
.banner-content h1{font-size:42px;font-weight:700;line-height:1.3;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.banner-content h1 span{color:var(--lime)}
.banner-content p{font-size:17px;opacity:.9;margin-bottom:28px;letter-spacing:1px}
.banner-content .btn{display:inline-block;padding:12px 36px;background:var(--lime);color:var(--blue);font-size:15px;font-weight:600;border-radius:30px;text-decoration:none;transition:all .3s;box-shadow:0 4px 16px rgba(195,214,0,.4)}
.banner-content .btn:hover{background:#fff;transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,0,0,.2)}
.banner-wrap .swiper-button-next,.banner-wrap .swiper-button-prev{
 width:52px;height:52px;background:rgba(13,43,78,.6);border-radius:50%;
 transition:background .3s;backdrop-filter:blur(4px)
}
.banner-wrap .swiper-button-next:hover,.banner-wrap .swiper-button-prev:hover{background:var(--blue)}
.banner-wrap .swiper-button-next::after,.banner-wrap .swiper-button-prev::after{font-size:18px;color:#fff;font-weight:700}
.banner-wrap .swiper-pagination-bullet{width:32px;height:4px;border-radius:2px;background:rgba(255,255,255,.5);transition:all .3s}
.banner-wrap .swiper-pagination-bullet-active{background:var(--lime);width:48px}
.banner-scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.7);font-size:12px;text-align:center;animation:bounce 2s infinite}
.banner-scroll-hint i{font-size:20px;display:block;margin-top:4px}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ====== SECTION COMMON ====== */
.section{padding:80px 0;background:var(--gray-bg)}
.section.blue-bg{background:var(--blue)}
.section.dark-bg{background:var(--blue-d)}
.section-title{text-align:center;margin-bottom:50px}
.section-title .en{font-size:12px;color:var(--lime);letter-spacing:4px;text-transform:uppercase;margin-bottom:8px;font-weight:600}
.section-title h2{font-size:30px;color:var(--text-dark);font-weight:700}
.section.blue-bg .section-title h2,.section.dark-bg .section-title h2{color:#fff}
.section-title p{font-size:14px;color:#888;margin-top:10px}
.section.blue-bg .section-title p,.section.dark-bg .section-title p{color:rgba(255,255,255,.6)}
.section-title::after{content:'';display:block;width:50px;height:3px;background:var(--lime);margin:14px auto 0;border-radius:2px}

/* ====== INTRO (��˾��� ====== */
.intro-section{padding:80px 0;background:#fff}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.intro-text h3{font-size:26px;color:var(--blue);margin-bottom:16px;font-weight:700}
.intro-text h3 span{color:var(--lime)}
.intro-text p{font-size:15px;color:#666;line-height:1.9;margin-bottom:20px}
.intro-text .more-link{display:inline-flex;align-items:center;color:var(--blue-mid);font-size:14px;font-weight:600;text-decoration:none;transition:color .2s}
.intro-text .more-link:hover{color:var(--lime)}
.intro-text .more-link i{margin-left:6px;transition:transform .3s}
.intro-text .more-link:hover i{transform:translateX(4px)}
.intro-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.intro-stats .stat{text-align:center;padding:20px 12px;background:var(--gray-bg);border-radius:var(--radius);transition:all .3s}
.intro-stats .stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.intro-stats .num{font-size:28px;font-weight:700;color:var(--blue-mid);line-height:1}
.intro-stats .num span{font-size:28px;color:var(--lime)}
.intro-stats .label{font-size:13px;color:#888;margin-top:6px}
.intro-img{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.intro-img img{width:100%;height:380px;object-fit:cover;display:block}
.intro-img::after{content:'';position:absolute;top:20px;right:20px;width:60px;height:60px;border:3px solid var(--lime);border-radius:var(--radius);z-index:1}

/* ====== CATEGORIES (��Ʒ����) ====== */
.categories-section{padding:80px 0;background:#fff}
.cat-layout{display:grid;grid-template-columns:240px 1fr;gap:30px;align-items:start}
.cat-sidebar{background:var(--blue);border-radius:var(--radius-lg);padding:24px 0;position:sticky;top:90px}
.cat-sidebar-title{padding:0 20px 16px;border-bottom:1px solid rgba(255,255,255,.15);color:#fff;font-size:16px;font-weight:600;margin-bottom:8px;display:flex;align-items:center}
.cat-sidebar-title i{margin-right:8px;color:var(--lime)}
.cat-accordion .cat-item{border-bottom:1px solid rgba(255,255,255,.08)}
.cat-accordion .cat-item:last-child{border-bottom:0}
.cat-accordion .cat-trigger{display:flex;justify-content:space-between;align-items:center;padding:13px 20px;color:rgba(255,255,255,.85);font-size:14px;cursor:pointer;transition:all .25s;text-decoration:none}
.cat-accordion .cat-trigger:hover,.cat-accordion .cat-item.open .cat-trigger{background:rgba(195,214,0,.15);color:#fff}
.cat-accordion .cat-trigger i{font-size:11px;transition:transform .3s}
.cat-accordion .cat-item.open .cat-trigger i{transform:rotate(180deg)}
.cat-accordion .cat-subs{padding:10px 20px;background:rgba(255,255,255,.05);display:none}
.cat-accordion .cat-item.open .cat-subs{display:block}
.cat-accordion .cat-subs a{display:block;font-size:13px;color:rgba(255,255,255,.65);padding:6px 0;text-decoration:none;transition:color .2s}
.cat-accordion .cat-subs a:hover{color:var(--lime)}
.cat-accordion .cat-subs a::before{content:'-';margin-right:6px;color:var(--lime)}

/* Product grid */
.product-filter-bar{display:flex;gap:10px;margin-bottom:30px;flex-wrap:wrap}
.product-filter-bar .filter-btn{padding:8px 20px;border:1px solid #ddd;border-radius:25px;font-size:13px;cursor:pointer;transition:all .25s;background:#fff;color:#555;text-decoration:none}
.product-filter-bar .filter-btn:hover,.product-filter-bar .filter-btn.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .35s;position:relative;border:1px solid #f0f0f0}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.product-card .badge{position:absolute;top:14px;left:14px;padding:4px 12px;font-size:11px;font-weight:700;border-radius:20px;z-index:2}
.product-card .badge.hot{background:var(--lime);color:var(--blue)}
.product-card .badge.new{background:var(--blue);color:#fff}
.product-card .img {
 height: 200px;
 overflow: hidden;
 background: #fff;
 display: flex;
 align-items: center;
 justify-content: center;
 width:100%;
 max-width:100%;
 box-sizing:border-box;
}

.product-card .img img {
 width: 100%;
 height: 100%;
 object-fit: contain; 
 object-position: center;
 max-width:100%;
 display:block;
 box-sizing:border-box;
}
.product-card{box-sizing:border-box;max-width:100%}
.product-card .img{box-sizing:border-box;max-width:100%;overflow:hidden}
.product-card:hover .img img{transform:scale(1.08)}
.product-card .info{padding:18px 18px 20px}
.product-card .cat-tag{font-size:11px;color:var(--lime);font-weight:600;margin-bottom:6px;text-transform:uppercase;letter-spacing:1px}
.product-card h3{font-size:14px;color:#333;font-weight:600;margin-bottom:8px;line-height:1.4;height:40px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.product-card .model{font-size:12px;color:#999;margin-bottom:14px}
.product-card .footer{display:flex;justify-content:space-between;align-items:center}
.product-card .price{font-size:15px;color:var(--blue-mid);font-weight:700}
.product-card .btn-detail{padding:6px 16px;font-size:12px;background:var(--blue);color:#fff;border-radius:20px;text-decoration:none;transition:all .2s}
.product-card .btn-detail:hover{background:var(--lime);color:var(--blue)}

/* ====== INDUSTRY (Ӧ����ҵ) ====== */
.industry-section{padding:80px 0;background:var(--gray-bg)}
.industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.industry-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:260px;cursor:pointer;box-shadow:var(--shadow-sm);transition:all .4s}
.industry-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.industry-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.industry-card:hover img{transform:scale(1.08)}
.industry-card .mask{position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(13,43,78,.85) 100%);transition:background .4s}
.industry-card .content{position:absolute;bottom:0;left:0;right:0;padding:24px;color:#fff}
.industry-card .content h3{font-size:17px;font-weight:700;margin-bottom:4px}
.industry-card .content p{font-size:12px;opacity:.7;margin-bottom:12px}
.industry-card .link{font-size:12px;color:var(--lime);text-decoration:none;display:inline-flex;align-items:center;gap:6px;opacity:0;transform:translateY(8px);transition:all .3s}
.industry-card:hover .link{opacity:1;transform:translateY(0)}
.industry-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:0;background:var(--lime);transition:height .4s;z-index:2}
.industry-card:hover::before{height:100%}

/* ====== TECH ARTICLES (�������� - ��ͼ) ====== */
.articles-section{padding:80px 0;background:#fff}
.articles-grid{display:grid;grid-template-columns:2fr 1fr;gap:40px}
.articles-list{background:var(--gray-bg);border-radius:var(--radius-lg);padding:30px}
.articles-list h3{font-size:17px;color:var(--blue);margin-bottom:20px;font-weight:700;padding-bottom:12px;border-bottom:2px solid var(--lime);display:flex;align-items:center;gap:8px}
.articles-list h3 i{color:var(--lime)}
.article-item{display:flex;align-items:start;gap:16px;padding:16px 0;border-bottom:1px solid #eee;transition:background .2s}
.article-item:last-child{border-bottom:0}
.article-item:hover{background:rgba(13,81,152,.04)}
.article-item .date{flex-shrink:0;width:52px;text-align:center;padding:10px 0;background:var(--blue);color:#fff;border-radius:8px;line-height:1.2}
.article-item .date .day{display:block;font-size:22px;font-weight:700}
.article-item .date .month{font-size:11px;opacity:.8}
.article-item .txt{flex:1}
.article-item .txt h4{font-size:14px;font-weight:600;color:#333;margin-bottom:6px;line-height:1.5;transition:color .2s}
.article-item:hover .txt h4{color:var(--blue-mid)}
.article-item .txt p{font-size:12px;color:#999;line-height:1.6}

/* FAQ sidebar */
.faq-sidebar{background:var(--blue);border-radius:var(--radius-lg);padding:30px;color:#fff}
.faq-sidebar h3{font-size:17px;font-weight:700;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.15);display:flex;align-items:center;gap:8px}
.faq-sidebar h3 i{color:var(--lime)}
.faq-item{margin-bottom:16px;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:16px}
.faq-item:last-child{margin-bottom:0;border-bottom:0;padding-bottom:0}
.faq-item .q{font-size:13px;font-weight:600;color:var(--lime);margin-bottom:6px;display:flex;align-items:start;gap:8px}
.faq-item .q::before{content:'Q';font-weight:700;font-size:11px;background:var(--lime);color:var(--blue);width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;line-height:1}
.faq-item .a{font-size:13px;color:rgba(255,255,255,.7);line-height:1.7;padding-left:26px}

/* ====== VIDEOS (������Ƶ) ====== */
.videos-section{padding:80px 0;background:var(--gray-bg)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .35s}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.video-card .thumb{position:relative;height:200px;overflow:hidden;background:#1a1a2e}
.video-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .thumb .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:54px;height:54px;background:rgba(13,43,78,.8);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;transition:all .3s;backdrop-filter:blur(4px)}
.video-card:hover .play-btn{background:var(--lime);color:var(--blue);transform:translate(-50%,-50%) scale(1.1)}
.video-card .info{padding:18px}
.video-card .info h4{font-size:14px;font-weight:600;color:#333;line-height:1.4;margin-bottom:6px}
.video-card .info span{font-size:12px;color:#999}

/* ====== CERT & CUSTOMER (����+�ͻ�) ====== */
.cert-section{padding:80px 0;background:#fff}
.cert-layout{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.cert-box{background:var(--gray-bg);border-radius:var(--radius-lg);padding:30px}
.cert-box h3,.honor-box h3{font-size:17px;color:var(--blue);font-weight:700;margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid var(--lime);display:flex;align-items:center;gap:8px}
.cert-box h3 i{color:var(--lime)}
.cert-scroll{display:flex;gap:16px;overflow-x:auto;padding-bottom:10px}
.cert-scroll::-webkit-scrollbar{height:4px}
.cert-scroll .cert-item{flex-shrink:0;width:160px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s;cursor:pointer}
.cert-scroll .cert-item:hover{transform:scale(1.05);box-shadow:var(--shadow-md)}
.cert-scroll .cert-item img{width:160px;height:160px;object-fit:cover}
.honor-box h3 i{color:var(--lime)}
.honor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.honor-item{text-align:center;padding:20px 12px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:all .3s}
.honor-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.honor-item img{max-width:100%;height:50px;object-fit:contain;margin-bottom:10px;filter:grayscale(100%);opacity:.6;transition:all .3s}
.honor-item:hover img{filter:none;opacity:1}
.honor-item p{font-size:12px;color:#888}

/* ====== SERVICE BANNER ====== */
.service-banner{background:var(--blue);padding:60px 0;color:#fff;text-align:center;position:relative;overflow:hidden}
.service-banner::before{content:'';position:absolute;top:-50%;right:-10%;width:400px;height:400px;background:rgba(195,214,0,.06);border-radius:50%}
.service-banner h2{font-size:28px;font-weight:700;margin-bottom:12px}
.service-banner p{font-size:15px;opacity:.7;margin-bottom:30px}
.service-banner .btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.service-banner .btn-primary{background:var(--lime);color:var(--blue);padding:12px 36px;border-radius:30px;font-weight:600;font-size:15px;text-decoration:none;transition:all .3s}
.service-banner .btn-primary:hover{background:#fff;transform:translateY(-2px)}
.service-banner .btn-outline{background:transparent;color:#fff;padding:12px 36px;border-radius:30px;font-weight:600;font-size:15px;border:1px solid rgba(255,255,255,.4);text-decoration:none;transition:all .3s}
.service-banner .btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff}

/* ====== INFO BLOCKS (����/�ۺ�/FAQ����) ====== */
.info-section{padding:80px 0;background:var(--gray-bg)}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{background:#fff;border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow-sm);transition:all .35s;border-top:3px solid transparent}
.info-card:hover{border-top-color:var(--lime);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.info-card .icon{width:50px;height:50px;background:var(--blue);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--lime);font-size:22px;margin-bottom:18px}
.info-card h4{font-size:16px;font-weight:700;color:var(--text-dark);margin-bottom:12px}
.info-card p,.info-card .text{font-size:14px;color:#666;line-height:1.8}
.info-card p strong{color:var(--blue-mid)}

/* ====== BRANDS (Ʒ��ǽ) ====== */
.brands-section{padding:50px 0;background:#fff;border-top:1px solid #eee;border-bottom:1px solid #eee}
.brands-scroll{display:flex;gap:40px;align-items:center;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.brands-scroll::-webkit-scrollbar{display:none}
.brands-scroll img{max-height:40px;opacity:.45;filter:grayscale(100%);transition:all .3s;flex-shrink:0}
.brands-scroll img:hover{opacity:1;filter:none}
/* Brand logo items */
.brand-logos{display:flex;gap:24px;align-items:center;overflow-x:auto;padding:10px 0;scrollbar-width:none;flex-wrap:wrap;justify-content:center}
.brand-logo-item{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer;transition:transform .3s}
.brand-logo-item:hover{transform:translateY(-4px)}
.brand-placeholder{width:100px;height:50px;background:var(--gray-bg);border:1px solid #e8e8e8;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:11px;color:#bbb}
.brand-name{font-size:12px;color:#555;font-weight:500;text-align:center;transition:color .2s}
.brand-logo-item:hover .brand-name{color:var(--blue-mid)}

/* ====== FOOTER ====== */
footer{background:var(--blue-d);color:rgba(255,255,255,.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--lime);display:inline-block}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:rgba(255,255,255,.6);text-decoration:none;font-size:13px;transition:all .2s;display:inline-flex;align-items:center}
.footer-col ul li a::before{content:'';width:4px;height:4px;background:var(--lime);border-radius:50%;margin-right:8px;opacity:0;transition:opacity .2s}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-col ul li a:hover::before{opacity:1}
.footer-contact li{display:flex;align-items:start;gap:10px;margin-bottom:14px;font-size:13px;line-height:1.6}
.footer-contact li i{color:var(--lime);margin-top:3px;width:16px;text-align:center}
.footer-bottom{background:var(--blue);padding:20px 0;margin-top:0}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center;font-size:13px}
.footer-bottom a{color:rgba(255,255,255,.5);text-decoration:none}
.footer-bottom a:hover{color:#fff}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}


/* Friend Links */
.friend-links{background:var(--blue-dark,#092a4a);padding:16px 0;border-top:1px solid rgba(255,255,255,.06)}
.friend-links .container{display:flex;align-items:center;flex-wrap:wrap;font-size:13px}
.friend-links span{color:rgba(255,255,255,.4);margin-right:12px;white-space:nowrap}
.friend-links a{color:rgba(255,255,255,.35);text-decoration:none;margin-right:16px;transition:color .2s}
.friend-links a:hover{color:var(--lime,#c3d600)}
/* ====== FLOATING SIDEBAR ====== */
.floating-bar{position:fixed;right:24px;bottom:80px;z-index:998;display:flex;flex-direction:column;gap:12px}
.floating-bar .float-btn{width:48px;height:48px;background:var(--blue);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;text-decoration:none;transition:all .3s;box-shadow:var(--shadow-md)}
.floating-bar .float-btn:hover{background:var(--lime);color:var(--blue);transform:scale(1.1)}
.floating-bar .float-btn.wechat{background:var(--blue)}
.floating-bar .float-btn.top-btn{background:rgba(13,43,78,.7);opacity:0;pointer-events:none;transition:opacity .3s}
.floating-bar .top-btn.visible{opacity:1;pointer-events:all}
.float-wechat-popup{position:absolute;right:60px;bottom:0;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:16px;text-align:center;display:none;width:160px}
.float-wechat-popup img{width:130px;height:130px;border-radius:8px;margin-bottom:8px}
.float-wechat-popup p{font-size:12px;color:#666;margin:0}
.float-wechat-wrap{position:relative}
.float-wechat-wrap:hover .float-wechat-popup{display:block}

/* ====== MOBILE NAV TOGGLE ====== */
.navbar-toggler{border:0;padding:8px;font-size:20px;color:#333}

/* ====== RESPONSIVE - Mobile First ====== */
@media(min-width:1200px){.container{max-width:1140px}}
@media(max-width:1199px){
 .product-grid{grid-template-columns:repeat(3,1fr)}
 .footer-grid{grid-template-columns:repeat(3,1fr)}
 .intro-stats{grid-template-columns:repeat(2,1fr)}
 .banner-content h1{font-size:36px}
 .section{padding:60px 0}
}
@media(max-width:991px){
 .navbar-collapse{background:#fff;padding:16px;box-shadow:var(--shadow-md);border-radius:var(--radius);max-height:80vh;overflow-y:auto;-webkit-overflow-scrolling:touch}
 .navbar-nav{flex-direction:column;width:100%}
 .nav-item{width:100%;border-bottom:1px solid #eee}
 .nav-link{font-size:15px;padding:14px 0!important}
 .nav-item:last-child{border-bottom:0}
 .dropdown-menu{box-shadow:none;padding:0 0 0 16px;border-left:2px solid var(--lime);background:transparent}
 .dropdown-item{font-size:14px;padding:10px 12px}
 .navbar-toggler{border:2px solid var(--blue);border-radius:6px;padding:8px 12px;font-size:22px;color:var(--blue);background:#fff;cursor:pointer}
 .navbar-toggler:focus{box-shadow:none;outline:none}
 .search-box{margin:12px 0 0;width:100%}
 .cat-layout{display:block}
 .cat-sidebar{display:none!important}
 .intro-grid{grid-template-columns:1fr}
 .intro-img{order:-1;border-radius:var(--radius)}
 .intro-img img{height:280px}
 .product-grid{grid-template-columns:repeat(2,1fr);gap:16px}
 .industry-grid{grid-template-columns:repeat(2,1fr);gap:16px}
 .articles-grid{grid-template-columns:1fr}
 .faq-sidebar{margin-top:24px;border-radius:var(--radius)}
 .video-grid{grid-template-columns:repeat(2,1fr);gap:16px}
 .cert-layout{grid-template-columns:1fr}
 .info-grid{grid-template-columns:repeat(2,1fr);gap:16px}
 .footer-grid{grid-template-columns:repeat(2,1fr);gap:24px}
 .service-banner{padding:40px 20px}
 .floating-bar{right:16px;bottom:60px}
}
@media(max-width:767px){
 html,body{max-width:100vw;overflow-x:hidden}
 body{font-size:15px}
 .topbar{display:none!important}
 .banner-wrap .swiper-slide{height:280px}
 .banner-content h1{font-size:22px!important;line-height:1.3}
 .banner-content p{font-size:13px;margin-bottom:18px}
 .banner-content .btn{padding:10px 28px;font-size:14px}
 .banner-wrap .swiper-button-next,.banner-wrap .swiper-button-prev{display:none!important}
 .banner-scroll-hint{display:none!important}
 .section{padding:40px 0}
 .section-title{margin-bottom:24px}
 .section-title h2{font-size:22px}
 .section-title p{font-size:13px}
 .section-title::after{margin-top:10px}
 .quick-links-grid .row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
 .quick-links-grid a{padding:14px 10px!important;border-radius:10px;min-height:unset}
 .quick-links-grid i{font-size:20px!important}
 .quick-links-grid h4{font-size:13px!important}
 .quick-links-grid span{font-size:11px!important}
 .product-grid{grid-template-columns:repeat(2,1fr);gap:12px}
 .product-card{border-radius:8px}
 .product-card .img{height:auto!important;min-height:150px;max-height:200px;padding:6px}
 .product-card .img img{width:100%!important;height:auto!important;max-height:190px;object-fit:contain!important}
 .product-card .info{padding:12px 10px!important}
 .product-card h3{font-size:13px;height:auto!important;-webkit-line-clamp:2}
 .product-card .cat-tag{font-size:11px}
 .product-card .model{display:block!important;font-size:11.5px!important;margin-bottom:10px!important}
 .product-card .footer{flex-direction:column;align-items:center!important;gap:6px}
 .product-card .btn-detail{width:100%;text-align:center;font-size:12px}
 .industry-grid{grid-template-columns:repeat(2,1fr);gap:12px}
 .industry-card{height:180px}
 .industry-card .content{padding:16px}
 .industry-card .content h3{font-size:15px}
 .industry-card .content p{display:none}
 .product-filter-bar{gap:8px;margin-bottom:20px;overflow-x:auto;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;padding-bottom:8px}
 .product-filter-bar .filter-btn{padding:6px 14px;font-size:12px;white-space:nowrap}
 .intro-stats{grid-template-columns:repeat(2,1fr);gap:12px}
 .intro-stats .stat{padding:14px 8px}
 .intro-stats .num{font-size:24px}
 .video-grid{grid-template-columns:1fr;gap:16px}
 .video-card .thumb{height:180px}
 .info-grid{grid-template-columns:1fr;gap:16px}
 .info-card{padding:20px}
 .cert-layout{grid-template-columns:1fr;gap:24px}
 .cert-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:12px}
 .honor-grid{grid-template-columns:repeat(2,1fr);gap:12px}
 .service-banner h2{font-size:22px}
 .service-banner .btns{flex-direction:column;gap:12px}
 .service-banner .btn-primary,.service-banner .btn-outline{width:100%;text-align:center}
 .footer-grid{grid-template-columns:1fr;gap:30px}
 .footer-bottom{padding:16px 0}
 .footer-bottom .container{flex-direction:column;gap:10px;text-align:center;font-size:12px}
 .footer-links{gap:12px;flex-wrap:wrap;justify-content:center}
 .floating-bar{right:12px;bottom:60px}
 .floating-bar .float-btn{width:42px;height:42px;font-size:16px}
 .articles-list{padding:20px;border-radius:10px}
 .article-item{padding:12px 0}
 .faq-sidebar{padding:20px;border-radius:10px}
}
@media(max-width:479px){
 .banner-content h1{font-size:18px!important}
 .banner-content p{font-size:12px}
 .section-title h2{font-size:20px}
 .product-grid{grid-template-columns:1fr;gap:14px}
 .product-card .img{height:200px}
 .industry-grid{grid-template-columns:1fr;gap:14px}
 .industry-card{height:160px}
 .intro-stats{grid-template-columns:1fr 1fr}
 .banner-wrap .swiper-slide{height:240px}
 .video-grid{grid-template-columns:1fr}
 .video-card .thumb{height:160px}
 .honor-grid{grid-template-columns:1fr 1fr}
 .quick-links-grid .row{grid-template-columns:repeat(2,1fr)}
}
@media(hover:none) and (pointer:coarse){
 .product-card:active{transform:translateY(-2px)}
 .nav-link:active{background:var(--gray-bg)}
 .filter-btn:active{background:var(--blue);color:#fff;border-color:var(--blue)}
 .cat-scroll,.cert-scroll,.video-grid,.product-filter-bar{overflow-x:auto;-webkit-overflow-scrolling:touch}
}



/* ====== NUCLEAR IMAGE CONTAINMENT ====== */
.product-card,.product-card *{max-width:100%!important;box-sizing:border-box!important}
.product-card .img{display:block;overflow:hidden}
.product-card .img img{max-width:100%!important;width:100%!important;height:auto!important;display:block!important;object-fit:contain!important;object-position:center!important}

/* ====== MOBILE PRODUCT CARD FIX ====== */
@media(max-width:767px){
 .product-grid{grid-template-columns:repeat(2,1fr)!important;gap:10px!important;width:100%;padding:0 4px;box-sizing:border-box}
 .product-card{width:100%;max-width:none;overflow:hidden;border-radius:8px}
 .product-card .img{width:100%!important;height:auto!important;min-height:140px;max-height:180px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#fff;padding:8px;box-sizing:border-box}
 .product-card .img img{width:100%!important;height:auto!important;max-height:170px;object-fit:contain!important;object-position:center!important;display:block!important}
 .product-card .info{padding:10px 8px!important;text-align:left;box-sizing:border-box}
 .product-card .cat-tag{font-size:10px;margin-bottom:4px}
 .product-card h3{font-size:12.5px!important;line-height:1.35;height:auto!important;overflow:visible!important;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:4px!important}
 .product-card .model{display:block!important;font-size:11px!important;color:#888;margin-bottom:8px!important;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .product-card .footer{flex-direction:column;align-items:center!important;gap:6px}
 .product-card .price{text-align:center;font-size:14px}
 .product-card .btn-detail{width:100%!important;text-align:center!important;padding:7px 0!important;font-size:12px!important;border-radius:20px}
 .cat-layout{width:100%;box-sizing:border-box;padding:0!important;margin:0!important}
 .product-filter-bar{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;flex-wrap:nowrap!important;padding-bottom:8px}
 .product-filter-bar .filter-btn{flex-shrink:0}
 .cat-sidebar{display:none!important}
}

@media(max-width:479px){
 .product-grid{grid-template-columns:1fr!important;gap:12px!important}
 .product-card .img{min-height:160px;max-height:220px}
 .product-card .img img{max-height:210px}
 .product-card h3{font-size:13px!important}
}

/* ====== AOS CUSTOM ====== */
[data-aos]{transition-timing-function:cubic-bezier(.25,.46,.45,.94)}

/* ====== QUICK LINKS (hover-card in body) ====== */
.hover-card:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(13,43,78,.12);color:var(--blue-mid)!important}