:root{
      --theme:#0B3D91;
      --theme-dark:#072d6c;
      --theme-soft:#eaf1fc;
      --ink:#162033;
      --muted:#667085;
      --line:#dfe5ee;
      --paper:#ffffff;
      --surface:#f5f7fa;
      --danger:#b42318;
      --shadow:0 18px 50px rgba(16,24,40,.10);
      --radius:18px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--surface);
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
      line-height:1.65;
    }
    body.drawer-locked{overflow:hidden}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .skip-link{
      position:fixed;
      z-index:9999;
      top:12px;
      left:12px;
      padding:10px 16px;
      color:#fff;
      background:var(--theme);
      border-radius:8px;
      transform:translateY(-160%);
      transition:.2s ease;
    }
    .skip-link:focus{transform:translateY(0)}

    .topbar{
      color:#dce8fb;
      background:#071c3f;
      border-bottom:1px solid rgba(255,255,255,.09);
      font-size:13px;
    }
    .topbar-inner{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar-contact{display:flex;align-items:center;gap:22px}
    .topbar a:hover{color:#fff;text-decoration:underline}

    .header{
      position:relative;
      z-index:200;
      color:var(--ink);
      background:rgba(255,255,255,.98);
      border-bottom:1px solid var(--line);
      box-shadow:0 5px 20px rgba(16,24,40,.04);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:26px;
    }
    .logo{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--theme-dark);
      font-size:19px;
      font-weight:800;
      letter-spacing:.01em;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:9px;
    }
    .main-nav{align-self:stretch;margin-left:auto}
    .nav-list{
      height:100%;
      margin:0;
      padding:0;
      display:flex;
      align-items:stretch;
      list-style:none;
    }
    .nav-item{position:relative;display:flex;align-items:stretch}
    .nav-link{
      position:relative;
      display:flex;
      align-items:center;
      padding:0 13px;
      color:#26354d;
      font-size:15px;
      font-weight:650;
      white-space:nowrap;
    }
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .nav-link::after{
      content:"";
      position:absolute;
      right:13px;
      bottom:0;
      left:13px;
      height:3px;
      background:var(--theme);
      transform:scaleX(0);
      transition:transform .2s ease;
    }
    .nav-item:hover>.nav-link::after,
    .nav-item:focus-within>.nav-link::after{transform:scaleX(1)}
    .nav-link.has-arrow{padding-right:27px}
    .nav-link.has-arrow::before{
      content:"";
      position:absolute;
      top:50%;
      right:13px;
      width:6px;
      height:6px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      transform:translateY(-70%) rotate(45deg);
    }

    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      left:0;
      z-index:300;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      transform:translateY(8px);
      transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .nav-item:hover>.dropdown-panel,
    .nav-item:focus-within>.dropdown-panel,
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.mega-menu{
      visibility:visible;
      opacity:1;
      pointer-events:auto;
      transform:translateY(0);
    }
    .dropdown-panel{
      width:300px;
      padding:10px;
      border-radius:0 0 14px 14px;
    }
    .dropdown-panel>a{
      display:block;
      padding:10px 12px;
      border-radius:8px;
      color:#344054;
      font-size:14px;
    }
    .dropdown-panel>a:hover{color:var(--theme);background:var(--theme-soft)}
    .dropdown-panel .dropdown-more{
      margin-top:6px;
      color:var(--theme);
      font-weight:750;
      border-top:1px solid var(--line);
      border-radius:0 0 8px 8px;
    }

    .mega-menu{
      left:50%;
      width:min(790px,calc(100vw - 32px));
      border-radius:0 0 18px 18px;
      transform:translate(-50%,8px);
      overflow:hidden;
    }
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .mega-menu.mega-wide{width:min(1040px,calc(100vw - 32px))}
    .mega-inner{padding:22px}
    .mega-heading{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:16px;
    }
    .mega-heading strong{color:#172b4d;font-size:18px}
    .mega-heading span{color:var(--muted);font-size:13px}
    .mega-categories{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin:0 0 16px;
      padding:12px;
      background:#f7f9fc;
      border:1px solid #e9edf3;
      border-radius:12px;
    }
    .mega-categories a{
      padding:6px 11px;
      color:#344054;
      background:#fff;
      border:1px solid var(--line);
      border-radius:999px;
      font-size:13px;
    }
    .mega-categories a:hover{color:#fff;background:var(--theme);border-color:var(--theme)}
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
    }
    .mega-card{
      min-width:0;
      padding:13px;
      display:grid;
      grid-template-columns:44px minmax(0,1fr);
      align-content:start;
      gap:5px 10px;
      color:#26354d;
      border:1px solid #e6eaf0;
      border-radius:12px;
      background:#fff;
      transition:.2s ease;
    }
    .mega-card:hover{
      color:var(--theme);
      border-color:#b8c9e8;
      box-shadow:0 8px 20px rgba(11,61,145,.09);
      transform:translateY(-2px);
    }
    .mega-card img{
      grid-row:1/4;
      width:44px;
      height:44px;
      object-fit:contain;
      background:#f4f6f9;
      border-radius:9px;
    }
    .mega-card strong{
      min-width:0;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      font-size:14px;
    }
    .mega-card p{
      grid-column:2;
      margin:0;
      color:var(--muted);
      font-size:12px;
      line-height:1.5;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .mega-meta{
      grid-column:2;
      display:flex;
      flex-wrap:wrap;
      gap:4px 9px;
      color:#667085;
      font-size:11px;
    }
    .mega-video,.mega-product{display:block}
    .mega-video img,.mega-product img{
      width:100%;
      height:82px;
      margin-bottom:9px;
      object-fit:cover;
    }
    .mega-video p,.mega-product p{margin:5px 0}
    .mega-video .mega-meta,.mega-product .mega-meta{display:flex}
    .mega-footer{
      display:block;
      padding:12px 22px;
      color:var(--theme);
      background:#f2f6fc;
      border-top:1px solid #dbe5f3;
      text-align:right;
      font-size:14px;
      font-weight:750;
    }
    .mega-footer:hover{background:#e8f0fb}

    .header-btns{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .header-btns>a,.open-account{
      display:inline-flex;
      min-height:40px;
      align-items:center;
      justify-content:center;
      padding:8px 15px;
      border-radius:9px;
      font-size:14px;
      font-weight:750;
    }
    .open-account{color:#fff;background:var(--theme)}
    .open-account:hover{background:var(--theme-dark)}
    .hamburger{
      width:42px;
      height:42px;
      padding:10px;
      display:none;
      flex-direction:column;
      justify-content:center;
      gap:5px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:9px;
    }
    .hamburger span{
      display:block;
      width:100%;
      height:2px;
      background:var(--ink);
      transition:.2s ease;
    }
    .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

    .drawer-overlay{
      position:fixed;
      z-index:500;
      inset:0;
      visibility:hidden;
      opacity:0;
      background:rgba(6,18,38,.56);
      transition:.25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      z-index:510;
      top:0;
      right:0;
      bottom:0;
      width:min(390px,90vw);
      overflow-y:auto;
      color:var(--ink);
      background:#fff;
      box-shadow:-20px 0 60px rgba(0,0,0,.18);
      transform:translateX(105%);
      transition:transform .25s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:70px;
      padding:12px 18px;
      display:flex;
      align-items:center;
      gap:10px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head>a{
      padding:7px 11px;
      border:1px solid rgba(255,255,255,.42);
      border-radius:8px;
      font-size:14px;
    }
    .drawer-close{
      margin-left:auto;
      width:38px;
      height:38px;
      color:#fff;
      background:rgba(255,255,255,.12);
      border:0;
      border-radius:50%;
      font-size:27px;
      line-height:1;
    }
    .drawer-menu{padding:12px 18px 28px}
    .drawer-link,.drawer-toggle{
      width:100%;
      padding:14px 4px;
      display:flex;
      align-items:center;
      color:#26354d;
      background:transparent;
      border:0;
      border-bottom:1px solid var(--line);
      text-align:left;
      font-weight:750;
    }
    .drawer-toggle::after{
      content:"+";
      margin-left:auto;
      color:var(--theme);
      font-size:20px;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      max-height:0;
      overflow:hidden;
      background:#f7f9fc;
      transition:max-height .3s ease;
    }
    .drawer-submenu.open{max-height:760px}
    .drawer-submenu a{
      display:block;
      padding:10px 14px;
      color:#526071;
      border-bottom:1px solid #e8ecf2;
      font-size:14px;
    }
    .drawer-submenu a:hover{color:var(--theme);background:var(--theme-soft)}

    .ea-content-stack{min-width:0}
    .ea-content-stack .product-crumbs{
      padding:18px 0;
      color:#64748b;
      font-size:14px;
    }
    .ea-content-stack .product-crumbs ol{
      margin:0;
      padding:0;
      display:flex;
      flex-wrap:wrap;
      gap:7px;
      list-style:none;
    }
    .ea-content-stack .product-crumbs li+li::before{
      content:"/";
      margin-right:7px;
      color:#a0a8b5;
    }
    .ea-content-stack .product-crumbs a:hover{color:var(--theme)}
    .ea-content-stack .product-overview{
      padding:34px;
      display:grid;
      grid-template-columns:minmax(300px,.88fr) minmax(0,1.12fr);
      gap:38px;
      background:var(--paper);
      border:1px solid var(--line);
      border-radius:24px;
      box-shadow:0 18px 55px rgba(16,24,40,.08);
    }
    .ea-content-stack .product-gallery{
      min-width:0;
      min-height:390px;
      padding:28px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(145deg,#eef3fb,#fafcff);
      border:1px solid #dce5f2;
      border-radius:18px;
      overflow:hidden;
    }
    .ea-content-stack .product-gallery img{
      width:100%;
      max-height:430px;
      object-fit:contain;
      border-radius:12px;
    }
    .ea-content-stack .product-summary{min-width:0;align-self:center}
    .ea-content-stack .category-label{
      display:inline-flex;
      padding:6px 12px;
      color:var(--theme);
      background:var(--theme-soft);
      border:1px solid #c7d6ee;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
    }
    .ea-content-stack .product-summary h1{
      margin:15px 0 14px;
      color:#101828;
      font-size:clamp(30px,4vw,48px);
      line-height:1.2;
      letter-spacing:-.025em;
      overflow-wrap:anywhere;
    }
    .ea-content-stack .product-lead{
      margin:0;
      color:#526071;
      font-size:17px;
      line-height:1.9;
      overflow-wrap:anywhere;
    }
    .ea-content-stack .product-facts{
      margin:24px 0 0;
      padding:18px 0;
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }
    .ea-content-stack .product-facts div{
      min-width:0;
      padding:2px 16px;
      border-right:1px solid var(--line);
    }
    .ea-content-stack .product-facts div:first-child{padding-left:0}
    .ea-content-stack .product-facts div:last-child{border-right:0}
    .ea-content-stack .product-facts dt{
      margin-bottom:4px;
      color:#7b8797;
      font-size:12px;
    }
    .ea-content-stack .product-facts dd{
      margin:0;
      color:#223047;
      font-size:14px;
      font-weight:750;
      overflow-wrap:anywhere;
    }
    .ea-content-stack .product-actions{
      margin-top:24px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
    }
    .ea-content-stack .primary-action,
    .ea-content-stack .secondary-action{
      min-height:48px;
      padding:11px 20px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:10px;
      font-weight:800;
      transition:.2s ease;
    }
    .ea-content-stack .primary-action{
      color:#fff;
      background:var(--theme);
      box-shadow:0 10px 24px rgba(11,61,145,.2);
    }
    .ea-content-stack .primary-action:hover{background:var(--theme-dark);transform:translateY(-1px)}
    .ea-content-stack .secondary-action{
      color:var(--theme);
      background:#fff;
      border:1px solid #b9c9e4;
    }
    .ea-content-stack .secondary-action:hover{background:var(--theme-soft)}

    .ea-content-stack .product-layout{
      margin-top:30px;
      display:grid;
      grid-template-columns:minmax(0,1fr) 300px;
      gap:26px;
      align-items:start;
    }
    .ea-content-stack .product-content,
    .ea-content-stack .product-side-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:0 10px 35px rgba(16,24,40,.05);
    }
    .ea-content-stack .product-content{
      min-width:0;
      max-width:100%;
      padding:34px;
      overflow-x:auto;
    }
    .ea-content-stack .product-content h2,
    .ea-content-stack .related-heading h2{
      margin:0 0 20px;
      color:#15233a;
      font-size:25px;
    }
    .ea-content-stack .product-body{
      min-width:0;
      max-width:100%;
      overflow-x:auto;
      color:#344054;
      font-size:16px;
      line-height:1.9;
      overflow-wrap:anywhere;
    }
    .ea-content-stack .product-body img,
    .ea-content-stack .product-body video,
    .ea-content-stack .product-body iframe{
      max-width:100%;
      height:auto;
    }
    .ea-content-stack .product-body table{
      width:100%;
      max-width:100%;
      border-collapse:collapse;
    }
    .ea-content-stack .product-body th,
    .ea-content-stack .product-body td{
      padding:10px;
      border:1px solid var(--line);
    }
    .ea-content-stack .product-body a{color:var(--theme);text-decoration:underline}
    .ea-content-stack .product-sidebar{
      display:grid;
      gap:18px;
      position:sticky;
      top:20px;
    }
    .ea-content-stack .product-side-card{padding:22px}
    .ea-content-stack .product-side-card h2{
      margin:0 0 14px;
      color:#1d2c43;
      font-size:18px;
    }
    .ea-content-stack .product-side-card p{
      margin:0;
      color:#667085;
      font-size:14px;
    }
    .ea-content-stack .detail-list{margin:0}
    .ea-content-stack .detail-list div{
      padding:11px 0;
      display:flex;
      justify-content:space-between;
      gap:14px;
      border-bottom:1px solid var(--line);
    }
    .ea-content-stack .detail-list div:last-child{border-bottom:0}
    .ea-content-stack .detail-list dt{color:#7b8797;font-size:13px}
    .ea-content-stack .detail-list dd{
      margin:0;
      color:#25344d;
      font-size:13px;
      font-weight:750;
      text-align:right;
      overflow-wrap:anywhere;
    }
    .ea-content-stack .notice-card{
      color:#5c3a00;
      background:#fff9eb;
      border-color:#f1d69a;
    }
    .ea-content-stack .notice-card strong{
      display:block;
      margin-bottom:8px;
      color:#7a4d00;
    }

    .ea-content-stack .related-products{padding:54px 0 70px}
    .ea-content-stack .related-heading{
      margin-bottom:20px;
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
    }
    .ea-content-stack .related-heading h2{margin:0}
    .ea-content-stack .related-heading p{margin:0;color:var(--muted)}
    .ea-content-stack .related-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:20px;
    }
    .ea-content-stack .related-card{
      min-width:0;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      transition:.2s ease;
    }
    .ea-content-stack .related-card:hover{
      border-color:#b8c9e8;
      box-shadow:0 16px 35px rgba(11,61,145,.10);
      transform:translateY(-3px);
    }
    .ea-content-stack .related-card img{
      width:100%;
      height:190px;
      object-fit:cover;
      background:#eef2f7;
    }
    .ea-content-stack .related-card-body{padding:18px}
    .ea-content-stack .related-card h3{
      margin:0 0 9px;
      color:#1d2c43;
      font-size:18px;
      line-height:1.45;
      overflow-wrap:anywhere;
    }
    .ea-content-stack .related-card p{
      margin:0;
      color:#667085;
      font-size:14px;
      line-height:1.75;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .ea-content-stack .related-meta{
      margin-top:14px;
      padding-top:12px;
      display:flex;
      justify-content:space-between;
      gap:12px;
      color:#7b8797;
      border-top:1px solid var(--line);
      font-size:12px;
    }

    .footer{
      color:#cbd5e1;
      background:#08172f;
      border-top:4px solid var(--theme);
    }
    .footer-main{
      padding:54px 0 40px;
      display:grid;
      grid-template-columns:1.45fr 1fr 1fr 1.1fr;
      gap:38px;
    }
    .footer .logo{color:#fff}
    .footer-brand p{
      max-width:390px;
      margin:18px 0 0;
      color:#aebbd0;
      font-size:14px;
    }
    .footer h2{
      margin:4px 0 16px;
      color:#fff;
      font-size:16px;
    }
    .footer-links,.footer-contact{display:grid;gap:9px}
    .footer-links a,.footer-contact a{
      width:max-content;
      max-width:100%;
      color:#b9c5d7;
      font-size:14px;
    }
    .footer a:hover{color:#fff}
    .social-link{margin-top:7px;color:#b9c5d7}
    .footer-bottom{
      min-height:68px;
      padding:16px 0;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      color:#94a3b8;
      border-top:1px solid rgba(255,255,255,.11);
      font-size:13px;
    }
    .footer-bottom-links{display:flex;gap:18px}

    @media (max-width:1120px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-btns{margin-left:auto}
      .ea-content-stack .product-overview{grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr)}
      .footer-main{grid-template-columns:1.5fr 1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }

    @media (max-width:860px){
      .ea-content-stack .product-overview{grid-template-columns:1fr;padding:24px}
      .ea-content-stack .product-gallery{min-height:300px}
      .ea-content-stack .product-layout{grid-template-columns:1fr}
      .ea-content-stack .product-sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
      .ea-content-stack .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))}
    }

    @media (max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:8px 0;align-items:flex-start;flex-direction:column;gap:3px}
      .topbar-contact{flex-wrap:wrap;gap:3px 14px}
      .header-inner{min-height:68px;gap:12px}
      .logo{font-size:16px}
      .logo img{width:36px;height:36px}
      .header-btns>a{display:none}
      .ea-content-stack .product-crumbs{padding:14px 0}
      .ea-content-stack .product-overview{padding:17px;border-radius:16px}
      .ea-content-stack .product-gallery{min-height:230px;padding:18px}
      .ea-content-stack .product-summary h1{font-size:29px}
      .ea-content-stack .product-lead{font-size:15px}
      .ea-content-stack .product-facts{grid-template-columns:1fr}
      .ea-content-stack .product-facts div,
      .ea-content-stack .product-facts div:first-child{
        padding:10px 0;
        border-right:0;
        border-bottom:1px solid var(--line);
      }
      .ea-content-stack .product-facts div:last-child{border-bottom:0}
      .ea-content-stack .product-actions{display:grid}
      .ea-content-stack .product-content{padding:22px 18px}
      .ea-content-stack .product-sidebar{grid-template-columns:1fr}
      .ea-content-stack .related-products{padding:42px 0 55px}
      .ea-content-stack .related-heading{align-items:flex-start;flex-direction:column;gap:5px}
      .ea-content-stack .related-grid{grid-template-columns:1fr}
      .footer-main{padding:42px 0 32px;grid-template-columns:1fr;gap:27px}
      .footer-brand{grid-column:auto}
      .footer-bottom{align-items:flex-start;flex-direction:column}
    }