:root{
      --theme:#0B3D91;
      --theme-source:{主题色};
      --theme-dark:#072b68;
      --theme-light:#eaf1fc;
      --accent:#4f7ecb;
      --ink:#152238;
      --muted:#637087;
      --line:#dce4ef;
      --surface:#ffffff;
      --page:#f5f8fc;
      --success:#167b57;
      --radius:18px;
      --shadow:0 16px 42px rgba(25,52,89,.10);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--page);
      font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;
      line-height:1.65;
      overflow-x:hidden;
    }
    body,button,input,textarea{font:inherit}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button{color:inherit}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}

    .topbar{
      min-height:38px;
      display:flex;
      align-items:center;
      color:#dbe8ff;
      background:#061f49;
      font-size:13px;
    }
    .topbar .container{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar-links{display:flex;align-items:center;gap:22px}
    .topbar a{transition:color .2s ease}
    .topbar a:hover{color:#fff}

    .header{
      position:relative;
      z-index:50;
      background:rgba(255,255,255,.98);
      border-bottom:1px solid var(--line);
      box-shadow:0 5px 18px rgba(22,43,75,.04);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:28px;
    }
    .logo{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:11px;
      max-width:245px;
      color:var(--theme);
      font-size:19px;
      font-weight:800;
    }
    .logo img{
      width:42px;
      height:42px;
      border-radius:11px;
      object-fit:contain;
      background:#fff;
      border:1px solid var(--line);
    }
    .logo span{
      overflow:hidden;
      white-space:nowrap;
      text-overflow:ellipsis;
    }
    .main-nav{margin-left:auto;height:78px}
    .nav-list{
      height:100%;
      display:flex;
      align-items:stretch;
      gap:2px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:stretch;
    }
    .nav-link{
      display:flex;
      align-items:center;
      padding:0 13px;
      color:#26364f;
      font-size:15px;
      font-weight:650;
      white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover,.nav-item:focus-within>.nav-link{
      color:var(--theme);
      background:var(--theme-light);
    }
    .has-arrow::after{
      content:"";
      width:6px;
      height:6px;
      margin-left:7px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      transform:rotate(45deg) translateY(-2px);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      left:0;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      transform:translateY(8px);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 22px 52px rgba(18,42,78,.16);
      transition:opacity .2s ease,transform .2s ease,visibility .2s;
    }
    .dropdown-panel::before,.mega-menu::before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:-10px;
      height:10px;
    }
    .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:290px;
      padding:12px;
      border-radius:0 0 14px 14px;
    }
    .dropdown-panel a{
      display:block;
      padding:10px 12px;
      border-radius:9px;
      color:#34445d;
      font-size:14px;
    }
    .dropdown-panel a:hover{color:var(--theme);background:var(--theme-light)}
    .mega-menu{
      left:50%;
      width:min(760px,82vw);
      padding:22px;
      border-radius:0 0 18px 18px;
      transform:translate(-50%,8px);
    }
    .nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{
      transform:translate(-50%,0);
    }
    .nav-item:nth-last-child(-n+3) .mega-menu{
      left:auto;
      right:0;
      transform:translateY(8px);
    }
    .nav-item:nth-last-child(-n+3):hover>.mega-menu,
    .nav-item:nth-last-child(-n+3):focus-within>.mega-menu{
      transform:translateY(0);
    }
    .mega-section-title{
      margin:0 0 12px;
      color:#233653;
      font-size:13px;
      font-weight:800;
      letter-spacing:.06em;
    }
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:10px;
    }
    .mega-card{
      min-width:0;
      display:flex;
      align-items:center;
      gap:11px;
      padding:11px;
      border:1px solid #e7edf5;
      border-radius:12px;
      background:#fbfcfe;
      transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    }
    .mega-card:hover{
      transform:translateY(-2px);
      border-color:#b8cae7;
      box-shadow:0 9px 20px rgba(26,64,119,.09);
    }
    .mega-card img{
      flex:0 0 auto;
      width:42px;
      height:42px;
      border-radius:9px;
      object-fit:cover;
      background:#eef3fa;
    }
    .mega-card span{min-width:0;display:block}
    .mega-card strong{
      display:block;
      overflow:hidden;
      color:#203451;
      font-size:14px;
      white-space:nowrap;
      text-overflow:ellipsis;
    }
    .mega-card small{
      display:block;
      overflow:hidden;
      color:var(--muted);
      font-size:11px;
      white-space:nowrap;
      text-overflow:ellipsis;
    }
    .mega-links{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .mega-links a{
      padding:7px 11px;
      color:var(--theme);
      background:var(--theme-light);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
    }
    .header-btns{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .member-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 17px;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-size:14px;
      font-weight:750;
      box-shadow:0 8px 18px rgba(11,61,145,.2);
    }
    .member-btn:hover{background:var(--theme-dark)}
    .hamburger{
      display:none;
      width:44px;
      height:44px;
      padding:10px;
      border:1px solid var(--line);
      border-radius:10px;
      background:#fff;
      cursor:pointer;
    }
    .hamburger span{
      display:block;
      width:100%;
      height:2px;
      margin:5px 0;
      background:var(--ink);
      transition:transform .2s ease,opacity .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;
      inset:0;
      z-index:90;
      visibility:hidden;
      opacity:0;
      background:rgba(6,20,42,.56);
      backdrop-filter:blur(2px);
      transition:opacity .25s ease,visibility .25s;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      z-index:100;
      width:min(390px,90vw);
      height:100vh;
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 50px rgba(9,29,61,.2);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:74px;
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 18px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head>a{
      padding:7px 12px;
      border:1px solid rgba(255,255,255,.35);
      border-radius:8px;
      font-size:14px;
    }
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      padding:0;
      color:#fff;
      background:rgba(255,255,255,.12);
      border:0;
      border-radius:9px;
      font-size:28px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:14px 18px 28px}
    .drawer-link,.drawer-toggle{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:13px 4px;
      color:#263852;
      background:transparent;
      border:0;
      border-bottom:1px solid #e8edf4;
      font-weight:750;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      content:"+";
      color:var(--theme);
      font-size:21px;
      font-weight:400;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      display:none;
      padding:7px 0 9px 14px;
      border-bottom:1px solid #e8edf4;
    }
    .drawer-submenu.open{display:block}
    .drawer-submenu a{
      display:block;
      padding:8px 5px;
      color:var(--muted);
      font-size:14px;
    }
    .drawer-submenu a:hover{color:var(--theme)}

    .ea-content-stack{min-width:0}
    .ea-content-stack .product-hero{
      position:relative;
      overflow:hidden;
      padding:34px 0 54px;
      background:
        radial-gradient(circle at 88% 8%,rgba(79,126,203,.18),transparent 30%),
        linear-gradient(150deg,#edf3fc 0%,#f8fafc 58%,#e8eff9 100%);
      border-bottom:1px solid var(--line);
    }
    .ea-content-stack .product-hero::after{
      content:"";
      position:absolute;
      right:-90px;
      bottom:-150px;
      width:370px;
      height:370px;
      border:70px solid rgba(11,61,145,.045);
      border-radius:50%;
    }
    .ea-content-stack .breadcrumb{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-bottom:24px;
      color:var(--muted);
      font-size:14px;
    }
    .ea-content-stack .breadcrumb a:hover{color:var(--theme)}
    .ea-content-stack .product-overview{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(280px,430px) minmax(0,1fr);
      align-items:center;
      gap:48px;
    }
    .ea-content-stack .product-image-wrap{
      position:relative;
      padding:22px;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(189,204,226,.85);
      border-radius:26px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(9px);
    }
    .ea-content-stack .product-image-wrap::before{
      content:"产品资料";
      position:absolute;
      top:14px;
      left:14px;
      z-index:2;
      padding:5px 10px;
      color:#fff;
      background:var(--theme);
      border-radius:999px;
      font-size:12px;
      font-weight:700;
    }
    .ea-content-stack .product-image{
      width:100%;
      aspect-ratio:4/3;
      object-fit:contain;
      background:#f3f6fa;
      border-radius:17px;
    }
    .ea-content-stack .product-category{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-bottom:12px;
      padding:6px 12px;
      color:var(--theme);
      background:#dfeafd;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
    }
    .ea-content-stack .product-category::before{
      content:"";
      width:7px;
      height:7px;
      background:var(--theme);
      border-radius:50%;
    }
    .ea-content-stack .product-title{
      margin:0;
      color:#10233f;
      font-size:clamp(30px,4vw,50px);
      line-height:1.16;
      letter-spacing:-.025em;
    }
    .ea-content-stack .product-summary{
      max-width:760px;
      margin:18px 0 0;
      color:#526179;
      font-size:17px;
    }
    .ea-content-stack .product-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .ea-content-stack .meta-item{
      display:flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      color:#4d5d75;
      background:rgba(255,255,255,.8);
      border:1px solid #d8e1ed;
      border-radius:10px;
      font-size:13px;
    }
    .ea-content-stack .meta-item strong{color:#1c3559}
    .ea-content-stack .product-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:27px;
    }
    .ea-content-stack .primary-action,
    .ea-content-stack .secondary-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:0 21px;
      border-radius:11px;
      font-size:15px;
      font-weight:800;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
    }
    .ea-content-stack .primary-action{
      color:#fff;
      background:var(--theme);
      box-shadow:0 10px 24px rgba(11,61,145,.23);
    }
    .ea-content-stack .secondary-action{
      color:var(--theme);
      background:#fff;
      border:1px solid #bacbe5;
    }
    .ea-content-stack .primary-action:hover,
    .ea-content-stack .secondary-action:hover{transform:translateY(-2px)}
    .ea-content-stack .primary-action:hover{background:var(--theme-dark)}

    .ea-content-stack .product-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 300px;
      align-items:start;
      gap:28px;
      padding-top:42px;
      padding-bottom:58px;
    }
    .ea-content-stack .product-main,
    .ea-content-stack .product-side{min-width:0}
    .ea-content-stack .content-card{
      min-width:0;
      padding:34px;
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:0 12px 35px rgba(24,48,83,.07);
    }
    .ea-content-stack .section-heading{
      display:flex;
      align-items:center;
      gap:11px;
      margin:0 0 24px;
      color:#183252;
      font-size:25px;
      line-height:1.3;
    }
    .ea-content-stack .section-heading::before{
      content:"";
      width:5px;
      height:27px;
      background:var(--theme);
      border-radius:99px;
    }
    .ea-content-stack .product-body{
      min-width:0;
      max-width:100%;
      overflow-x:auto;
      color:#33445c;
      font-size:16px;
      line-height:1.85;
    }
    .ea-content-stack .product-body img,
    .ea-content-stack .product-body video,
    .ea-content-stack .product-body iframe,
    .ea-content-stack .product-body table{
      max-width:100%;
    }
    .ea-content-stack .product-body img{
      height:auto;
      margin:22px auto;
      border-radius:14px;
    }
    .ea-content-stack .product-body table{
      width:100%;
      border-collapse:collapse;
    }
    .ea-content-stack .product-body th,
    .ea-content-stack .product-body td{
      padding:11px 13px;
      border:1px solid var(--line);
      text-align:left;
    }
    .ea-content-stack .product-body h2,
    .ea-content-stack .product-body h3{
      color:#173456;
      line-height:1.4;
    }
    .ea-content-stack .product-body a{
      color:var(--theme);
      text-decoration:underline;
      text-underline-offset:3px;
    }
    .ea-content-stack .side-card{
      margin-bottom:18px;
      padding:23px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      box-shadow:0 10px 27px rgba(25,50,86,.06);
    }
    .ea-content-stack .side-card h2{
      margin:0 0 15px;
      color:#1d3658;
      font-size:18px;
    }
    .ea-content-stack .detail-list{
      margin:0;
      padding:0;
      list-style:none;
    }
    .ea-content-stack .detail-list li{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:11px 0;
      border-bottom:1px dashed #dce4ef;
      color:var(--muted);
      font-size:13px;
    }
    .ea-content-stack .detail-list li:last-child{border-bottom:0}
    .ea-content-stack .detail-list strong{
      color:#263b59;
      text-align:right;
    }
    .ea-content-stack .notice-card{
      color:#dce9ff;
      background:linear-gradient(145deg,var(--theme),#092d69);
      border-color:transparent;
    }
    .ea-content-stack .notice-card h2{color:#fff}
    .ea-content-stack .notice-card p{
      margin:0 0 17px;
      font-size:14px;
    }
    .ea-content-stack .notice-card a{
      display:flex;
      justify-content:center;
      padding:10px 14px;
      color:var(--theme);
      background:#fff;
      border-radius:9px;
      font-weight:800;
    }
    .ea-content-stack .related-section{
      padding:0 0 70px;
    }
    .ea-content-stack .related-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:20px;
    }
    .ea-content-stack .related-head h2{
      margin:0;
      color:#173456;
      font-size:28px;
    }
    .ea-content-stack .related-head p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .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:17px;
      box-shadow:0 11px 28px rgba(25,52,89,.07);
      transition:transform .2s ease,box-shadow .2s ease;
    }
    .ea-content-stack .related-card:hover{
      transform:translateY(-4px);
      box-shadow:0 17px 36px rgba(25,52,89,.12);
    }
    .ea-content-stack .related-card img{
      width:100%;
      aspect-ratio:16/10;
      object-fit:cover;
      background:#edf2f8;
    }
    .ea-content-stack .related-body{padding:18px}
    .ea-content-stack .related-body h3{
      overflow:hidden;
      margin:0 0 9px;
      color:#203653;
      font-size:18px;
      line-height:1.45;
      white-space:nowrap;
      text-overflow:ellipsis;
    }
    .ea-content-stack .related-body p{
      display:-webkit-box;
      overflow:hidden;
      min-height:48px;
      margin:0 0 13px;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }
    .ea-content-stack .related-meta{
      display:flex;
      justify-content:space-between;
      gap:10px;
      color:#8190a5;
      font-size:12px;
    }

    .footer{
      color:#c9d5e8;
      background:#071c3d;
      border-top:4px solid var(--theme);
    }
    .footer .container{padding-top:54px;padding-bottom:22px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr 1fr 1fr 1fr;
      gap:42px;
    }
    .footer-brand strong{
      display:block;
      margin-bottom:13px;
      color:#fff;
      font-size:23px;
    }
    .footer-brand p{
      max-width:390px;
      margin:0;
      color:#aebbd0;
      font-size:14px;
    }
    .footer h3{
      margin:0 0 16px;
      color:#fff;
      font-size:15px;
    }
    .footer-grid>div>a{
      display:block;
      margin:8px 0;
      color:#bdc9dc;
      font-size:14px;
      transition:color .2s ease,transform .2s ease;
    }
    .footer-grid>div>a:hover{color:#fff;transform:translateX(3px)}
    .footer-grid p{color:#aebbd0;font-size:14px}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      margin-top:38px;
      padding-top:20px;
      color:#8796ad;
      border-top:1px solid rgba(255,255,255,.1);
      font-size:13px;
    }

    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{min-height:70px}
      .ea-content-stack .product-layout{grid-template-columns:minmax(0,1fr) 270px}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:820px){
      .ea-content-stack .product-overview{grid-template-columns:1fr;gap:27px}
      .ea-content-stack .product-image-wrap{max-width:520px;width:100%;margin:0 auto}
      .ea-content-stack .product-layout{grid-template-columns:1fr}
      .ea-content-stack .product-side{
        display:grid;
        grid-template-columns:repeat(2,minmax(0,1fr));
        gap:18px;
      }
      .ea-content-stack .side-card{margin:0}
      .ea-content-stack .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:620px){
      .container{width:min(100% - 28px,var(--container))}
      .topbar{padding:8px 0}
      .topbar .container{align-items:flex-start;flex-direction:column;gap:3px}
      .topbar-links{align-items:flex-start;flex-direction:column;gap:2px}
      .logo{max-width:180px;font-size:16px}
      .logo img{width:38px;height:38px}
      .member-btn{display:none}
      .ea-content-stack .product-hero{padding:25px 0 42px}
      .ea-content-stack .product-image-wrap{padding:15px;border-radius:20px}
      .ea-content-stack .product-title{font-size:31px}
      .ea-content-stack .product-summary{font-size:15px}
      .ea-content-stack .product-actions>a{width:100%}
      .ea-content-stack .product-layout{padding-top:28px;padding-bottom:44px}
      .ea-content-stack .content-card{padding:23px 18px}
      .ea-content-stack .product-side{grid-template-columns:1fr}
      .ea-content-stack .related-head{align-items:flex-start;flex-direction:column;gap:4px}
      .ea-content-stack .related-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom{flex-direction:column}
    }