@import url("https://cms-1312702909.cos.ap-beijing.myqcloud.com/static/8/css/language.css");
/* ======= 顶部导航栏（与 products.html 统一） ======= */
:root{
  --nav-red:#D8402A;
  --nav-red-deep:#AE2B16;
  --nav-red-soft:#FDEDE6;
  --nav-ink:#241A12;
  --nav-ink-2:#6E5D4E;
  --nav-line:#E9DED2;
}
.top-bar{background:var(--nav-ink);color:#fff;font-size:12px;padding:8px 0;font-family:'Inter',Arial,Helvetica,sans-serif}
.top-bar-inner{max-width:1650px;margin:0 auto;padding:0 70px;display:flex;justify-content:space-between;align-items:center}
.top-bar-left{display:flex;gap:24px;align-items:center}
.top-bar a{color:#fff;text-decoration:none;opacity:.85;transition:opacity .15s;display:inline-flex;align-items:center;gap:6px;line-height:normal}
.top-bar a:hover{opacity:1}
.top-bar-right{display:flex;gap:16px;align-items:center}
.top-bar-right a{opacity:.6}
  .top-bar-right a:hover{opacity:1}
.top-bar svg{width:14px;height:14px}
.main-nav{background:#fff;border-bottom:1px solid var(--nav-line);position:sticky;top:0;z-index:1000;box-shadow:0 1px 4px rgba(168,72,38,.04);display:block;height:auto;padding:0;font-family:'Inter',Arial,Helvetica,sans-serif}
.main-nav-inner{max-width:1650px;margin:0 auto;padding:0 70px;display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo img{height:40px;width:auto;display:block}
.logo-text{line-height:1.1;font-size:16px;font-weight:700;color:var(--nav-ink)}
.logo-text small{display:block;font-size:10px;font-weight:600;color:var(--nav-ink-2);letter-spacing:.05em;text-transform:uppercase;margin-top:2px}
.menu{display:flex;align-items:center;gap:4px;list-style:none}
.menu-item{position:relative}
.menu-link{display:flex;align-items:center;gap:5px;padding:8px 14px;font-size:15px;font-weight:500;color:var(--nav-ink);text-decoration:none;border-radius:8px;transition:color .15s,background .15s;cursor:pointer}
.menu-link:hover,.menu-item:hover>.menu-link{color:var(--nav-red);background:var(--nav-red-soft)}
.menu-link.active{color:var(--nav-red)}
.menu-arrow{width:10px;height:10px;transition:transform .2s}
.menu-item:hover>.menu-link .menu-arrow{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 8px);left:0;min-width:240px;background:#fff;border:1px solid var(--nav-line);border-radius:12px;box-shadow:0 12px 32px rgba(36,26,18,.1);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .18s,transform .18s,visibility .18s;list-style:none}
.menu-item:hover>.dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown li a{display:block;padding:10px 14px;font-size:14px;font-weight:500;color:var(--nav-ink);text-decoration:none;border-radius:8px;transition:background .12s,color .12s;white-space:nowrap}
.dropdown li a:hover{background:var(--nav-red-soft);color:var(--nav-red)}
.dropdown.products{min-width:260px;max-height:480px;overflow-y:auto}
.cta-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;background:var(--nav-red);color:#fff;font-size:14px;font-weight:700;text-decoration:none;border-radius:100px;transition:background .15s,transform .15s,box-shadow .15s;box-shadow:0 4px 14px rgba(216,64,42,.25)}
.cta-btn:hover{background:var(--nav-red-deep);transform:translateY(-1px);box-shadow:0 6px 20px rgba(216,64,42,.35)}
.cta-btn svg{width:16px;height:16px}
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.hamburger span{display:block;width:24px;height:2px;background:var(--nav-ink);border-radius:1px;transition:.2s}
@media (max-width:1024px){
  .menu{gap:0}
  .menu-link{padding:8px 10px;font-size:13px}
  .top-bar-left{gap:14px;font-size:11px}
  .top-bar-inner{padding:0 30px}
  .main-nav-inner{padding:0 30px}
}
@media (max-width:768px){
  .top-bar-inner{flex-direction:column;gap:6px}
  .top-bar-left{flex-wrap:wrap;justify-content:center}
  .menu{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--nav-line);flex-direction:column;padding:12px 24px 24px;gap:0;box-shadow:0 8px 24px rgba(36,26,18,.08)}
  .menu.open{display:flex}
  .menu-item{width:100%}
  .menu-link{width:100%;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--nav-line);border-radius:0}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding-left:16px;display:none}
  .menu-item.open>.dropdown{display:block}
  .hamburger{display:flex}
  .cta-btn{padding:10px 18px;font-size:12px}
  .main-nav-inner{height:60px}
  .logo img{height:32px}
}

.site-footer{background:#f7f8fa;overflow:hidden}
.footer-inner{max-width:1200px;margin:0 auto;padding:64px 24px 28px;display:flex;flex-direction:column;gap:36px}
.footer-top > a{display:inline-flex;width:fit-content;max-width:100%;flex:none}
.footer-top img{width:145px;height:40px;object-fit:contain}
.footer-columns{display:grid;grid-template-columns:160px 160px 140px 304px 300px;justify-content:space-between;align-items:start;gap:24px}
.footer-list{display:flex;flex-direction:column;gap:13px}
.footer-list h3,.inquiry-form h3{margin:0;color:#1f2530;font-size:13px;line-height:18px;font-weight:700}
.footer-list a,.footer-list p{margin:0;color:#7a8493;font-size:12px;line-height:17px}
.inquiry-form{display:flex;flex-direction:column;gap:12px}
.inquiry-form input,.inquiry-form textarea{width:100%;border:1px solid #e1e5ec;border-radius:0;padding:12px 16px;background:#fff;color:#222833;font-size:12px;line-height:16px;outline:none}
.inquiry-form input{height:40px}
.inquiry-form textarea{height:88px;resize:none}
.inquiry-form input::placeholder,.inquiry-form textarea::placeholder{color:#a0a8b4}
.inquiry-form button{width:100%;border:0;cursor:pointer}
.footer-rule{width:100%;height:1px;background:#e4e8ef}
.copyright{margin:0;color:#9aa3ae;font-size:11px;line-height:16px;text-align:center}

@media (max-width:1100px){
  .footer-columns{grid-template-columns:repeat(3,1fr);row-gap:28px}
}
@media (max-width:760px){
  .footer-columns{grid-template-columns:repeat(2,1fr)}
  .footer-contacts{grid-column:1/-1}
}
@media (max-width:560px){
  .faq-wrap{padding:36px 18px 64px}
  .cats{gap:8px;margin-bottom:24px}
  .cat{min-height:44px;display:inline-flex;align-items:center;padding:8px 16px}
  .faq-q{font-size:16px;padding:18px 4px}
  .faq-a-inner p{padding-left:0}
  .footer-columns{grid-template-columns:1fr}
  .footer-contacts{grid-column:auto}
}

.dropdown li{position:relative}.dropdown .dropdown{top:0;left:100%}.dropdown li:hover>.dropdown{opacity:1;visibility:visible;transform:none}
.menu-item:focus-within>.dropdown{opacity:1;visibility:visible;transform:none}
.footer-columns{grid-template-columns:repeat(3,minmax(0,1fr)) minmax(220px,1.4fr) minmax(180px,1fr)}
.product-card a{color:inherit;text-decoration:none}.pro-img img,.preview-img img,.big-box img{width:100%;height:100%;object-fit:contain}
.preview-box{position:relative}.preview-img{height:100%;min-height:300px}.preview-img img{min-height:300px}.big-box{display:none;overflow:hidden}.big-box img{transform-origin:0 0}
.thumbnail-box .item img{width:100%;height:80px;object-fit:contain}.thumbnail-box .item{cursor:pointer}
.category-details-body{line-height:1.8}.common-page{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin:30px 0}.common-page a,.common-page span{padding:8px 12px}.common-page .ctxt{background:var(--color);color:#fff}
.empty-list{text-align:center;padding:40px 20px}.article-body img{max-width:100%;height:auto}.detail-page{display:flex;justify-content:space-between;gap:24px;margin-top:30px}
.sidebar-cate .sub-menu{padding-left:16px}.sidebar-cate li{display:flex;flex-wrap:wrap}.sidebar-cate li>a{flex:1;min-width:0;width:auto!important}.sidebar-cate .sub-menu{flex:0 0 100%;box-sizing:border-box}.sidebar-cate .category-toggle{flex:0 0 40px;margin-left:-40px;position:relative;z-index:1;display:flex;align-items:center;justify-content:center;padding:0;border:0;background:transparent;cursor:pointer;font-size:0;color:var(--summarycolor);transition:color .2s linear}.sidebar-cate .category-toggle::before{content:"+";font-size:20px;line-height:1}.sidebar-cate li.active>.category-toggle::before{content:"-"}.sidebar-cate>li:hover>.category-toggle{color:#fff}.sidebar-cate .sub-menu li:hover>.category-toggle{color:var(--color)}.sidebar-cate li:not(.active)>.sub-menu{display:none}
.home-banner-image{display:block;width:100%;height:100%;object-fit:cover}.hero{position:relative}.hero-inner{position:relative;z-index:1}
.home-banner{position:relative}.home-banner .swiper-pagination{bottom:18px}.home-banner .swiper-pagination-bullet{width:12px;height:12px;margin:0 5px!important;border:1px solid #fff;background:transparent;opacity:1}.home-banner .swiper-pagination-bullet-active{background:#fff}.home-banner .swiper-button-prev,.home-banner .swiper-button-next{width:46px;height:46px;margin-top:-23px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;transition:background .15s linear}.home-banner .swiper-button-prev:hover,.home-banner .swiper-button-next:hover{background:var(--color)}.home-banner .swiper-button-prev::after,.home-banner .swiper-button-next::after{font-size:18px}.home-banner .swiper-button-prev{left:25px}.home-banner .swiper-button-next{right:25px}@media(max-width:768px){.home-banner .swiper-pagination{bottom:12px}.home-banner .swiper-pagination-bullet{width:8px;height:8px;margin:0 4px!important}}
.news-stage[hidden]{display:none}.site-footer .copyright a{margin-left:12px}.faq-a-inner{line-height:1.8}.faq-a-inner p{margin:0}
@media(max-width:1100px){.footer-columns{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:768px){.menu .dropdown{position:static}.main-nav-inner{gap:10px}.main-nav .cta-btn{padding:8px 12px}.menu{top:60px}.main-nav-inner{padding:0 18px}.footer-columns{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.footer-columns{grid-template-columns:1fr}.logo-text{display:none}}

/* Extracted logo image dimensions. */
.main-nav .logo img { height: 40px; width: auto; }

/* ======= 语言切换弹窗 ======= */
.nav-actions{display:flex;align-items:center;gap:14px}
.lang-switch{position:relative}
.lang-trigger{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px 0 12px;border:1px solid var(--nav-line);border-radius:100px;background:#fff;color:var(--nav-ink);font-size:14px;font-weight:500;font-family:inherit;cursor:pointer;transition:border-color .15s,background .15s,color .15s}
.lang-trigger:hover,.lang-switch.open .lang-trigger{border-color:var(--nav-red);background:var(--nav-red-soft);color:var(--nav-red)}
.lang-trigger-text{max-width:96px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lang-switch.open .lang-trigger .menu-arrow{transform:rotate(180deg)}
.lang-pop{position:absolute;top:calc(100% + 12px);right:0;width:340px;background:#fff;border:1px solid var(--nav-line);border-radius:14px;box-shadow:0 16px 40px rgba(36,26,18,.14);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .18s,transform .18s,visibility .18s;z-index:1010}
.lang-pop::before{content:'';position:absolute;top:-7px;right:28px;width:12px;height:12px;background:#fff;border-left:1px solid var(--nav-line);border-top:1px solid var(--nav-line);transform:rotate(45deg)}
.lang-switch.open .lang-pop{opacity:1;visibility:visible;transform:translateY(0)}
.lang-pop-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 12px;border-bottom:1px solid var(--nav-line)}
.lang-pop-title{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;color:var(--nav-ink-2);letter-spacing:.06em;text-transform:uppercase}
.lang-pop-title svg{width:16px;height:16px;color:var(--nav-red)}
.lang-pop-close{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border:0;border-radius:50%;background:transparent;color:var(--nav-ink-2);cursor:pointer;transition:background .15s,color .15s}
.lang-pop-close:hover{background:var(--nav-red-soft);color:var(--nav-red)}
.lang-pop-close svg{width:16px;height:16px}
.lang-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;max-height:360px;overflow-y:auto;margin:0;padding:10px;list-style:none}
.lang-list::-webkit-scrollbar{width:4px}
.lang-list::-webkit-scrollbar-thumb{background:var(--nav-line);border-radius:2px}
.lang-list a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;font-size:14px;font-weight:500;color:var(--nav-ink);text-decoration:none;transition:background .12s,color .12s}
.lang-list a:hover{background:var(--nav-red-soft);color:var(--nav-red)}
.lang-list a.active{background:var(--nav-red-soft);color:var(--nav-red);font-weight:700}
.lang-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lang-check{width:14px;height:14px;flex:none}
.lang-mask{display:none}
@media(max-width:768px){
  .nav-actions{gap:10px}
  .lang-trigger{height:36px;padding:0 10px}
  .lang-trigger-text,.lang-trigger .menu-arrow{display:none}
  .lang-mask{display:block;position:fixed;inset:0;background:rgba(36,26,18,.45);opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s;z-index:1009}
  .lang-switch.open .lang-mask{opacity:1;visibility:visible}
  .lang-pop{position:fixed;top:auto;left:0;right:0;bottom:0;width:auto;border-radius:18px 18px 0 0;border-width:1px 0 0;transform:translateY(100%);transition:transform .25s,visibility .25s;opacity:1}
  .lang-pop::before{display:none}
  .lang-switch.open .lang-pop{transform:translateY(0)}
  .lang-list{max-height:60vh;padding:10px 12px calc(14px + env(safe-area-inset-bottom))}
}

/* ======= 移动端导航（≤1024px）：隐藏 top-bar / 询价按钮，菜单在导航栏下方内部滚动 ======= */
/* 各页面 css 内联了一份导航样式且后加载，这里统一加 .main-nav 前缀提高优先级 */
@media (max-width:1024px){
  body .top-bar{display:none}
  .main-nav .main-nav-inner{height:64px;padding:0 20px;gap:10px}
  .main-nav .cta-btn{display:none}
  .main-nav .hamburger{display:flex}
  .main-nav .hamburger span{transform-origin:center}
  .main-nav .hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .main-nav .hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
  .main-nav .hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .main-nav .menu{display:none;position:absolute;top:100%;left:0;right:0;max-height:calc(100vh - 64px);max-height:calc(100dvh - 64px);overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;margin:0;padding:8px 20px 24px;gap:0;flex-direction:column;align-items:stretch;background:#fff;border-top:1px solid var(--nav-line);border-bottom:1px solid var(--nav-line);box-shadow:0 12px 24px rgba(36,26,18,.1)}
  .main-nav .menu.open{display:flex}
  .main-nav .menu-item{width:100%}
  .main-nav .menu-link{width:100%;justify-content:space-between;padding:14px 0;font-size:15px;border-bottom:1px solid var(--nav-line);border-radius:0;background:none}
  .main-nav .menu-link:hover{background:none}
  .main-nav .menu-link .menu-arrow{box-sizing:content-box;width:12px;height:12px;padding:10px;margin:-10px -10px -10px 0;flex:none}
  .main-nav .menu-item:hover>.menu-link .menu-arrow{transform:none}
  .main-nav .menu-item.open>.menu-link .menu-arrow{transform:rotate(180deg)}
  .main-nav .dropdown{position:static;display:none;min-width:0;max-height:none;overflow:visible;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:0;padding:4px 0 8px 14px;background:none}
  .main-nav .menu-item.open>.dropdown{display:block}
  .main-nav .dropdown li a{white-space:normal;padding:10px 12px}
  html.nav-open{overflow:hidden}
}
/* ======= 回到顶部（参考 temp7） ======= */
.rfixed{position:fixed;right:50px;bottom:calc(150px + env(safe-area-inset-bottom));z-index:99}
.rfixed .gotop{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:0;border-radius:50%;background:var(--color);color:#fff;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.15);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s,visibility .3s,transform .3s,background .2s}
.rfixed .gotop.act{opacity:1;visibility:visible;transform:translateY(0)}
.rfixed .gotop:hover{filter:brightness(.9)}
.rfixed .gotop svg{width:20px;height:20px}
@media(max-width:1024px){.rfixed{display:none}}

/* 证书预览弹窗（common.js 中 openCert 调用） */
[data-cert]{cursor:pointer}
.cert-modal{position:fixed;inset:0;z-index:9999;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,.7)}
.cert-modal.show{display:flex}
.cert-modal-box{position:relative;max-width:min(900px,100%);max-height:88vh;background:#fff;border-radius:12px;overflow:auto}
.cert-modal-box img{display:block;max-width:100%;max-height:88vh;object-fit:contain}
.cert-modal-close{position:absolute;top:8px;right:8px;z-index:1;width:36px;height:36px;border:0;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;font-size:24px;line-height:36px;cursor:pointer}