:root{--nav-h:88px;--deep:#180b0e;--ink:#241416;--muted:#667085;--blue:#6f2328;--line:#eadfdd;--shadow:0 24px 60px rgba(72,31,27,.12)}
    .wachang-section-block,.wachang-section-block *{box-sizing:border-box}
    .wachang-section-block{background:#fff;color:var(--ink);font-family:Arial,"Helvetica Neue","Microsoft YaHei",sans-serif;line-height:1.55;overflow:hidden}
    .wachang-section-block img{display:block;max-width:100%}
    .wachang-section-block a{color:inherit}
    .wachang-container{width:100%;max-width:1440px;margin:0 auto;padding:0 20px}
    .wachang-section-block{padding:72px 0}
    .wachang-soft{background:linear-gradient(180deg,#fff 0%,#f7f1f0 100%)}
    .wachang-dark{background:var(--deep);color:#fff}
    .wachang-eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);font-weight:800;margin-bottom:10px}
    .wachang-dark .wachang-eyebrow{color:#e6c278}
    .wachang-section-head{display:flex;align-items:end;justify-content:space-between;gap:34px;margin-bottom:36px}
    .wachang-title,.wachang-hot-title,.wachang-about-copy h1{font-size:clamp(34px,3vw,46px);line-height:1.12;letter-spacing:-.02em;color:var(--deep);margin:0;max-width:720px}
    .wachang-dark .wachang-title{color:#fff}
    .wachang-lead{font-size:16px;color:var(--muted);max-width:620px;margin:14px 0 0}
    .wachang-dark .wachang-lead{color:#c8d8e8}
    .wachang-section-head .wachang-lead{margin:0}

    .backgroundr{
        background-color: #180b0e !important;
    }

    /* .bossgoo-header-nav8{
        background: #fff !important;
    } */

    /* About Section */
    .wachang-about{display:flex;align-items:center}
    .wachang-about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:center}
    .wachang-about-copy h1{max-width:660px;margin-bottom:18px}
    .wachang-about-copy p{font-size:16px;color:#475467;max-width:620px;margin-bottom:14px}
    .wachang-about-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:24px;max-width:620px}
    .wachang-about-meta span{display:block;border-top:3px solid var(--blue);background:#fff;border-radius:16px;padding:14px 12px;color:#344054;font-size:13px;font-weight:800;box-shadow:0 10px 26px rgba(7,25,39,.06)}
    .wachang-about-media{height:500px;max-width:700px;justify-self:end;width:100%}
    .wachang-media-main,.wachang-media-side figure{position:relative;margin:0;overflow:hidden;background:#edf2f7;box-shadow:var(--shadow)}
    .wachang-media-main{border-radius:30px;height:100%}
    .wachang-media-main video,.wachang-media-main img,.wachang-media-side img{width:100%;height:100%;object-fit:cover}
    .wachang-media-label{position:absolute;left:18px;top:18px;background:rgba(255,255,255,.92);border-radius:999px;padding:9px 14px;font-size:13px;font-weight:800;color:var(--deep)}

    /* Product Category Section */
    .wachang-product-category .wachang-category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
    .wachang-product-category .wachang-category-card{height:336px;border-radius:26px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:0 20px 46px rgba(72,31,27,.09);display:flex;flex-direction:column;transition:.25s}
    .wachang-product-category .wachang-category-card:hover{transform:translateY(-4px);box-shadow:0 26px 58px rgba(72,31,27,.14)}
    .wachang-product-category .wachang-category-img{height:218px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:18px 20px 6px;text-decoration:none}
    .wachang-product-category .wachang-category-img img{width:100%;height:100%;object-fit:contain;transition:transform .35s ease}
    .wachang-product-category .wachang-category-card:hover .wachang-category-img img{transform:scale(1.04)}
    .wachang-product-category .wachang-category-copy{padding:18px 22px 22px;display:flex;flex-direction:column;justify-content:space-between;gap:18px;background:#fff}
    .wachang-product-category .wachang-category-copy h3{font-size:20px;line-height:1.25;color:var(--deep);margin:0}
    .wachang-product-category .wachang-category-link{display:inline-flex;align-items:center;justify-content:center;width:max-content;min-width:124px;height:38px;border-radius:999px;background:var(--blue);color:#fff;font-size:13px;font-weight:800;text-decoration:none;transition:.2s}
    .wachang-product-category .wachang-category-link:hover{background:#4d171b;transform:translateY(-1px)}

    /* Application Cases Section */
    .wachang-application-field{background:#fff;overflow:hidden}
    .wachang-application-head{text-align:center;margin:0 auto 36px}
    .wachang-application-head .wachang-title{max-width:none}
    .wachang-application-head .wachang-lead{margin:14px auto 0;max-width:760px}
    .wachang-application-carousel{width:100vw;margin-left:calc(50% - 50vw);overflow:hidden;padding:8px 0 0}
    .wachang-application-track{display:flex;width:max-content;animation:wachangApplicationScroll 52s linear infinite}
    .wachang-application-set{display:flex;gap:18px;flex:0 0 auto;padding-right:18px}
    .wachang-application-carousel:hover .wachang-application-track{animation-play-state:paused}
    .wachang-application-card{position:relative;flex:0 0 auto;width:clamp(300px,21.5vw,440px);height:300px;overflow:hidden;background:#fff}
    .wachang-application-card img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
    .wachang-application-card:after{content:"";position:absolute;inset:0;background:rgba(111,35,40,.68);opacity:0;transition:opacity .25s ease}
    .wachang-application-country{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;padding:20px;color:#fff;font-size:26px;font-weight:800;letter-spacing:.01em;text-align:center;opacity:0;transform:translateY(8px);transition:.25s ease}
    .wachang-application-card:hover img{transform:scale(1.04)}
    .wachang-application-card:hover:after,.wachang-application-card:hover .wachang-application-country{opacity:1}
    .wachang-application-card:hover .wachang-application-country{transform:translateY(0)}
    @keyframes wachangApplicationScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

    /* Why Choose Section */
    .wachang-why-choose .wachang-strength{background:#fff;padding:0}
    .wachang-why-choose .wachang-strength-head{text-align:center;margin:0 auto 58px;max-width:880px}
    .wachang-why-choose .wachang-strength-head .wachang-title{max-width:none}
    .wachang-why-choose .wachang-strength-head .wachang-lead{margin:16px auto 0;max-width:760px}
    .wachang-why-choose .wachang-why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:52px 64px}
    .wachang-why-choose .wachang-trustBox{padding-left:92px;position:relative}
    .wachang-why-choose .wachang-trustBox .wachang-icon{position:absolute;width:72px;height:72px;border:1px solid #d4d8e9;border-radius:100%;background:url("https://bsg-i.nbxc.com/product/57/23/11/4eb76077df3243ce54c44916b3.png") no-repeat;left:0;top:0}
    .wachang-why-choose .wachang-trustBox:hover .wachang-icon{background-color:var(--blue);border-color:var(--blue)}
    .wachang-why-choose .wachang-trustBox .wachang-icon.wachang-icon1{background-position:-140px 2px}
    .wachang-why-choose .wachang-trustBox:hover .wachang-icon.wachang-icon1{background-position:-205px 2px}
    .wachang-why-choose .wachang-trustBox .wachang-icon.wachang-icon2{background-position:-140px -60px}
    .wachang-why-choose .wachang-trustBox:hover .wachang-icon.wachang-icon2{background-position:-205px -60px}
    .wachang-why-choose .wachang-trustBox .wachang-icon.wachang-icon3{background-position:-140px -120px}
    .wachang-why-choose .wachang-trustBox:hover .wachang-icon.wachang-icon3{background-position:-205px -120px}
    .wachang-why-choose .wachang-trustBox .wachang-icon.wachang-icon4{background-position:-140px -185px}
    .wachang-why-choose .wachang-trustBox:hover .wachang-icon.wachang-icon4{background-position:-205px -185px}
    .wachang-why-choose .wachang-trustBox .wachang-icon.wachang-icon5{background-position:-140px -250px}
    .wachang-why-choose .wachang-trustBox:hover .wachang-icon.wachang-icon5{background-position:-205px -250px}
    .wachang-why-choose .wachang-trustBox .wachang-icon.wachang-icon6{background-position:-140px -315px}
    .wachang-why-choose .wachang-trustBox:hover .wachang-icon.wachang-icon6{background-position:-205px -315px}
    .wachang-why-choose .wachang-trustBox h3{font-size:20px;line-height:1.35;color:#3d3f63;font-weight:500;margin:0 0 18px}
    .wachang-why-choose .wachang-trustBox p{font-size:16px;line-height:1.48;color:#4a4d75;margin:0}

    /* Hot Products Section */
    .wachang-hot-products{background:var(--deep);padding:72px 0}
    .wachang-hot-head{text-align:center;margin:0 auto 40px;max-width:780px}
    .wachang-hot-head .wachang-eyebrow{color:#e6c278}
    .wachang-hot-title{color:#fff;margin:0 0 14px;max-width:none}
    .wachang-hot-subtitle{font-size:16px;color:rgba(255,255,255,.72);margin:0 auto;max-width:680px}
    .wachang-hot-carousel{position:relative;padding:0 72px;--hot-gap:24px;--hot-visible:4}
    .wachang-hot-window{width:100%;overflow:hidden}
    .wachang-hot-track{width:100%;display:flex;flex-wrap:nowrap;gap:var(--hot-gap);transition:transform .45s ease;will-change:transform}
    .wachang-hot-item{flex:0 0 calc((100% - (var(--hot-gap) * (var(--hot-visible) - 1))) / var(--hot-visible));min-width:0;text-align:center}
    .wachang-hot-card{height:390px;min-width:0;background:#fff;border-radius:18px;padding:16px 16px 20px;display:flex;flex-direction:column;text-decoration:none;color:inherit;box-shadow:0 18px 42px rgba(0,0,0,.18)}
    .wachang-hot-img{height:250px;background:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:16px;flex:0 0 250px}
    .wachang-hot-img img{width:100%;height:100%;object-fit:contain;transition:transform .35s ease}
    .wachang-hot-card:hover .wachang-hot-img img{transform:scale(1.04)}
    .wachang-hot-name{display:block;font-size:16px;color:#676767;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:18px}
    .wachang-hot-buy{display:inline-block;color:#6d6d6d;font-size:16px;text-decoration:none;margin-top:auto}
    .wachang-hot-card:hover .wachang-hot-name,.wachang-hot-card:hover .wachang-hot-buy{color:var(--blue)}
    .wachang-hot-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:2px solid rgba(255,255,255,.65);background:transparent;color:#fff;font-size:28px;line-height:1;cursor:pointer;z-index:2;box-shadow:none}
    .wachang-hot-arrow:hover{background:#fff;color:var(--blue);border-color:#fff}
    .wachang-hot-prev{left:4px}
    .wachang-hot-next{right:4px}

    /* Certificate Section */
    .wachang-certificate-section{background:#fff;padding-top:60px;padding-bottom:60px}
    .wachang-certificate-section .wachang-certificate-panel{display:grid;grid-template-columns:.72fr 1.28fr;gap:42px;align-items:center;border-radius:30px;background:var(--deep);padding:42px 48px;box-shadow:0 28px 72px rgba(24,11,14,.18);position:relative;overflow:hidden}
    .wachang-certificate-section .wachang-certificate-panel:before{content:"";position:absolute;right:-120px;top:-150px;width:340px;height:340px;border-radius:50%;background:rgba(230,194,120,.12)}
    .wachang-certificate-section .wachang-certificate-panel:after{content:"";position:absolute;left:48px;bottom:0;width:180px;height:4px;background:#e6c278;border-radius:999px 999px 0 0}
    .wachang-certificate-section .wachang-certificate-copy{position:relative;z-index:1}
    .wachang-certificate-section .wachang-certificate-copy .wachang-eyebrow{color:#e6c278}
    .wachang-certificate-section .wachang-certificate-copy .wachang-title{max-width:520px;color:#fff}
    .wachang-certificate-section .wachang-certificate-copy .wachang-lead{margin-top:16px;max-width:520px;color:rgba(255,255,255,.76)}
    .wachang-certificate-section .wachang-certificate-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;max-width:520px}
    .wachang-certificate-section .wachang-certificate-points span{border:1px solid rgba(230,194,120,.34);border-radius:999px;padding:9px 13px;color:#fff;font-size:13px;font-weight:800;background:rgba(255,255,255,.05)}
    .wachang-certificate-section .wachang-certificate-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;align-items:center}
    .wachang-certificate-section .wachang-certificate-card{background:#fff;border-radius:14px;padding:14px;box-shadow:0 22px 42px rgba(0,0,0,.18);overflow:hidden}
    .wachang-certificate-section .wachang-certificate-img{height:235px;background:#fff;display:flex;align-items:center;justify-content:center}
    .wachang-certificate-section .wachang-certificate-img img{width:100%;height:100%;object-fit:contain;transition:transform .35s ease}
    .wachang-certificate-section .wachang-certificate-card:hover .wachang-certificate-img img{transform:scale(1.035)}

    /* Factory Section */
    .wachang-factory-section .wachang-factory{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}
    .wachang-factory-section .wachang-factory figure{position:relative;margin:0;border-radius:30px;overflow:hidden;background:#eef3f8;box-shadow:var(--shadow)}
    .wachang-factory-section .wachang-factory-main{height:560px}
    .wachang-factory-section .wachang-factory-side{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .wachang-factory-section .wachang-factory-side figure{height:269px}
    .wachang-factory-section .wachang-factory img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
    .wachang-factory-section .wachang-factory figure:hover img{transform:scale(1.04)}
    .wachang-factory-section .wachang-factory figcaption{position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.92);border-radius:999px;padding:9px 14px;font-size:13px;font-weight:800;color:var(--deep)}

    /* Responsive */
    @media(max-width:980px){
      .wachang-about,.wachang-about-media{height:auto}
      .wachang-about-grid,.wachang-certificate-section .wachang-certificate-panel,.wachang-factory-section .wachang-factory{grid-template-columns:1fr}
      .wachang-about-meta,.wachang-product-category .wachang-category-grid{grid-template-columns:1fr 1fr}
      .wachang-certificate-section .wachang-certificate-grid{grid-template-columns:repeat(4,1fr)}
      .wachang-certificate-section .wachang-certificate-panel{padding:38px 30px}
      .wachang-certificate-section .wachang-certificate-img{height:220px}
      .wachang-application-card{width:clamp(280px,38vw,380px);height:300px}
      .wachang-why-choose .wachang-why-grid{grid-template-columns:1fr 1fr}
      .wachang-hot-carousel{--hot-visible:3}
      .wachang-about-media{height:560px}
      .wachang-factory-section .wachang-factory-side{grid-template-columns:1fr 1fr}
    }
    @media(max-width:640px){
      .wachang-container{padding:0 20px}
      .wachang-section-block{padding:52px 0}
      .wachang-section-head,.wachang-strength-head{display:block}
      .wachang-about-meta,.wachang-product-category .wachang-category-grid,.wachang-why-choose .wachang-why-grid,.wachang-certificate-section .wachang-certificate-grid,.wachang-factory-section .wachang-factory-side{grid-template-columns:1fr}
      .wachang-certificate-section .wachang-certificate-panel{padding:30px 20px;border-radius:26px}
      .wachang-certificate-section .wachang-certificate-points{grid-template-columns:1fr}
      .wachang-certificate-section .wachang-certificate-img{height:280px}
      .wachang-about-media{height:auto}
      .wachang-media-main{height:280px}
      .wachang-product-category .wachang-category-card{height:auto}
      .wachang-why-choose .wachang-strength{padding:0}
      .wachang-why-choose .wachang-trustBox{padding-left:88px}
      .wachang-hot-carousel{padding:0 48px;--hot-visible:1}
      .wachang-application-card{width:86vw;height:280px}
      .wachang-hot-arrow{top:50%}
      .wachang-hot-prev{left:0}
      .wachang-hot-next{right:0}
    }