:root{
      --theme:#0B3D91;
      --theme-dark:#072b66;
      --theme-soft:#edf3ff;
      --ink:#111827;
      --muted:#667085;
      --line:#e4e8ef;
      --paper:#ffffff;
      --canvas:#f5f7fb;
      --danger:#b42318;
      --radius:18px;
      --shadow:0 18px 50px rgba(11,61,145,.10);
    }

    *{
      box-sizing:border-box;
    }

    html{
      scroll-behavior:smooth;
    }

    body{
      margin:0;
      color:var(--ink);
      background:var(--canvas);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.65;
      overflow-x:hidden;
    }

    body.drawer-lock{
      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(1220px,calc(100% - 40px));
      margin:0 auto;
    }

    .skip-link{
      position:fixed;
      z-index:3000;
      top:12px;
      left:12px;
      padding:10px 16px;
      color:#fff;
      background:var(--theme);
      border-radius:8px;
      transform:translateY(-160%);
      transition:transform .2s ease;
    }

    .skip-link:focus{
      transform:translateY(0);
    }

    .topbar{
      color:#dbe7ff;
      background:#071d42;
      font-size:13px;
    }

    .topbar .container{
      min-height:36px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }

    .topbar-contact{
      display:flex;
      align-items:center;
      gap:18px;
    }

    .topbar-contact a:hover{
      color:#fff;
    }

    .header{
      position:relative;
      z-index:100;
      background:rgba(255,255,255,.98);
      border-bottom:1px solid var(--line);
      box-shadow:0 4px 18px rgba(16,24,40,.04);
    }

    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:28px;
    }

    .logo{
      display:inline-flex;
      align-items:center;
      gap:10px;
      min-width:0;
      font-weight:800;
      color:var(--theme-dark);
    }

    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:10px;
    }

    .logo span{
      max-width:180px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }

    .main-nav{
      margin-left:auto;
      align-self:stretch;
    }

    .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;
      gap:5px;
      padding:0 13px;
      color:#344054;
      font-size:15px;
      font-weight:600;
      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-soft);
    }

    .has-arrow::after{
      content:"";
      width:6px;
      height:6px;
      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;
      z-index:120;
      visibility:hidden;
      opacity:0;
      transform:translateY(10px);
      pointer-events:none;
      transition:opacity .18s ease,transform .18s ease,visibility .18s;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:0 24px 50px rgba(16,24,40,.14);
    }

    .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;
      transform:translateY(0);
      pointer-events:auto;
    }

    .dropdown-panel{
      width:310px;
      padding:18px;
    }

    .dropdown-title{
      margin-bottom:8px;
      color:var(--theme);
      font-size:13px;
      font-weight:800;
    }

    .dropdown-panel > a:not(.dropdown-footer){
      display:block;
      padding:10px 8px;
      color:#344054;
      border-bottom:1px solid #eef1f5;
      font-size:14px;
    }

    .dropdown-panel > a:hover{
      color:var(--theme);
    }

    .dropdown-footer,
    .mega-footer{
      display:block;
      margin-top:12px;
      padding:10px 12px;
      color:#fff;
      background:var(--theme);
      border-radius:9px;
      text-align:center;
      font-size:14px;
      font-weight:700;
    }

    .mega-menu{
      left:50%;
      width:720px;
      padding:20px;
      transform:translate(-50%,10px);
    }

    .nav-item:hover > .mega-menu,
    .nav-item:focus-within > .mega-menu{
      transform:translate(-50%,0);
    }

    .mega-menu.mega-wide{
      width:min(940px,calc(100vw - 44px));
    }

    .mega-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:20px;
      padding-bottom:13px;
      margin-bottom:14px;
      border-bottom:1px solid var(--line);
    }

    .mega-head strong{
      color:var(--theme-dark);
      font-size:17px;
    }

    .mega-head span{
      color:var(--muted);
      font-size:13px;
      text-align:right;
    }

    .mega-categories{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:16px;
    }

    .mega-categories a{
      padding:6px 11px;
      color:var(--theme);
      background:var(--theme-soft);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
    }

    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
    }

    .mega-card{
      min-width:0;
      display:grid;
      grid-template-columns:42px minmax(0,1fr);
      gap:4px 10px;
      align-items:center;
      padding:12px;
      background:#f8fafc;
      border:1px solid #edf0f5;
      border-radius:12px;
      transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    }

    .mega-card:hover{
      transform:translateY(-2px);
      border-color:#b8caea;
      box-shadow:0 10px 24px rgba(11,61,145,.09);
    }

    .mega-card img{
      grid-row:1 / span 3;
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:9px;
      background:#fff;
    }

    .mega-card strong,
    .mega-card p,
    .mega-meta{
      min-width:0;
    }

    .mega-card strong{
      overflow:hidden;
      color:#1d2939;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }

    .mega-card p{
      display:-webkit-box;
      margin:0;
      overflow:hidden;
      color:var(--muted);
      font-size:12px;
      line-height:1.45;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }

    .mega-meta{
      display:flex;
      flex-wrap:wrap;
      gap:3px 8px;
      color:#667085;
      font-size:11px;
    }

    .video-card,
    .product-card{
      grid-template-columns:70px minmax(0,1fr);
    }

    .video-card img,
    .product-card img{
      width:70px;
      height:54px;
      object-fit:cover;
    }

    .header-btns{
      display:flex;
      align-items:center;
      gap:10px;
    }

    .header-member{
      white-space:nowrap;
      font-size:14px;
    }

    .header-account{
      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:800;
      white-space:nowrap;
    }

    .header-account:hover{
      background:var(--theme-dark);
    }

    .hamburger{
      width:44px;
      height:42px;
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      color:var(--ink);
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
    }

    .hamburger span{
      width:20px;
      height:2px;
      background:currentColor;
      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:990;
      visibility:hidden;
      opacity:0;
      background:rgba(5,15,35,.58);
      transition:opacity .25s ease,visibility .25s ease;
    }

    .drawer-overlay.open{
      visibility:visible;
      opacity:1;
    }

    .mobile-drawer{
      position:fixed;
      z-index:1000;
      top:0;
      right:0;
      width:min(390px,92vw);
      height:100dvh;
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 50px rgba(0,0,0,.18);
      transform:translateX(105%);
      transition:transform .28s ease;
    }

    .mobile-drawer.open{
      transform:translateX(0);
    }

    .drawer-head{
      min-height:72px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px 18px;
      color:#fff;
      background:var(--theme-dark);
    }

    .drawer-head > a{
      padding:7px 12px;
      background:rgba(255,255,255,.14);
      border-radius:8px;
      font-weight:700;
    }

    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      padding:0;
      color:#fff;
      background:transparent;
      border:1px solid rgba(255,255,255,.3);
      border-radius:9px;
      font-size:27px;
      line-height:1;
    }

    .drawer-menu{
      padding:14px 18px 28px;
    }

    .drawer-link,
    .drawer-toggle{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 5px;
      color:#1d2939;
      background:transparent;
      border:0;
      border-bottom:1px solid var(--line);
      text-align:left;
      font-weight:750;
    }

    .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 8px 13px;
      border-left:2px solid #d7e2f5;
    }

    .drawer-submenu.open{
      display:block;
    }

    .drawer-submenu a{
      display:block;
      padding:9px 8px;
      color:#475467;
      font-size:14px;
    }

    .drawer-submenu a:hover{
      color:var(--theme);
      background:var(--theme-soft);
      border-radius:7px;
    }

    .ea-content-stack{
      min-width:0;
      padding-bottom:76px;
    }

    .ea-content-stack .product-hero{
      position:relative;
      overflow:hidden;
      padding:66px 0 58px;
      color:#fff;
      background:
        radial-gradient(circle at 85% 20%,rgba(255,255,255,.16),transparent 24%),
        linear-gradient(135deg,#061b40 0%,#0B3D91 58%,#2365bf 100%);
    }

    .ea-content-stack .product-hero::before,
    .ea-content-stack .product-hero::after{
      content:"";
      position:absolute;
      border:1px solid rgba(255,255,255,.16);
      border-radius:50%;
      pointer-events:none;
    }

    .ea-content-stack .product-hero::before{
      width:290px;
      height:290px;
      top:-150px;
      right:7%;
    }

    .ea-content-stack .product-hero::after{
      width:170px;
      height:170px;
      right:24%;
      bottom:-105px;
    }

    .ea-content-stack .product-breadcrumb{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-bottom:20px;
      color:#dbe7ff;
      font-size:14px;
    }

    .ea-content-stack .product-breadcrumb a:hover{
      color:#fff;
      text-decoration:underline;
    }

    .ea-content-stack .product-heading{
      position:relative;
      z-index:1;
      max-width:950px;
    }

    .ea-content-stack .product-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:14px;
      padding:6px 11px;
      color:#e8efff;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.2);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
    }

    .ea-content-stack .product-heading h1{
      margin:0;
      font-size:clamp(34px,5vw,64px);
      line-height:1.12;
      letter-spacing:-.03em;
      overflow-wrap:anywhere;
    }

    .ea-content-stack .product-summary{
      max-width:850px;
      margin:20px 0 0;
      color:#e2eaff;
      font-size:17px;
      line-height:1.85;
    }

    .ea-content-stack .product-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px 20px;
      margin-top:23px;
      color:#dbe7ff;
      font-size:14px;
    }

    .ea-content-stack .product-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 320px;
      gap:28px;
      align-items:start;
      margin-top:34px;
    }

    .ea-content-stack .product-primary,
    .ea-content-stack .product-side{
      min-width:0;
    }

    .ea-content-stack .product-panel,
    .ea-content-stack .side-card{
      background:var(--paper);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }

    .ea-content-stack .product-cover{
      overflow:hidden;
      padding:20px;
      background:linear-gradient(145deg,#fff,#f0f5ff);
      border-bottom:1px solid var(--line);
      border-radius:var(--radius) var(--radius) 0 0;
    }

    .ea-content-stack .product-cover img{
      width:100%;
      max-height:520px;
      object-fit:contain;
      margin:auto;
      border-radius:13px;
      background:#fff;
    }

    .ea-content-stack .product-body{
      min-width:0;
      max-width:100%;
      overflow-x:auto;
      padding:34px;
      color:#344054;
      font-size:16px;
      line-height:1.9;
    }

    .ea-content-stack .product-body > :first-child{
      margin-top:0;
    }

    .ea-content-stack .product-body > :last-child{
      margin-bottom:0;
    }

    .ea-content-stack .product-body h2,
    .ea-content-stack .product-body h3,
    .ea-content-stack .product-body h4{
      color:#101828;
      line-height:1.35;
    }

    .ea-content-stack .product-body h2{
      margin:34px 0 14px;
      padding-left:13px;
      border-left:4px solid var(--theme);
      font-size:26px;
    }

    .ea-content-stack .product-body h3{
      margin:28px 0 12px;
      font-size:21px;
    }

    .ea-content-stack .product-body a{
      color:var(--theme);
      text-decoration:underline;
      text-underline-offset:3px;
    }

    .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:12px;
    }

    .ea-content-stack .product-body table{
      width:100%;
      border-collapse:collapse;
    }

    .ea-content-stack .product-body th,
    .ea-content-stack .product-body td{
      min-width:120px;
      padding:11px;
      border:1px solid var(--line);
      text-align:left;
    }

    .ea-content-stack .product-side{
      position:sticky;
      top:20px;
      display:grid;
      gap:18px;
    }

    .ea-content-stack .side-card{
      padding:22px;
    }

    .ea-content-stack .side-card h2{
      margin:0 0 16px;
      color:#101828;
      font-size:19px;
    }

    .ea-content-stack .product-facts{
      display:grid;
      gap:0;
      margin:0;
    }

    .ea-content-stack .product-facts div{
      display:grid;
      grid-template-columns:82px minmax(0,1fr);
      gap:12px;
      padding:11px 0;
      border-bottom:1px solid var(--line);
    }

    .ea-content-stack .product-facts div:last-child{
      border-bottom:0;
    }

    .ea-content-stack .product-facts dt{
      color:var(--muted);
    }

    .ea-content-stack .product-facts dd{
      min-width:0;
      margin:0;
      color:#1d2939;
      font-weight:700;
      overflow-wrap:anywhere;
    }

    .ea-content-stack .side-action{
      display:flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      margin-top:17px;
      padding:0 16px;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-weight:800;
    }

    .ea-content-stack .side-action:hover{
      background:var(--theme-dark);
    }

    .ea-content-stack .risk-card{
      border-top:4px solid var(--danger);
    }

    .ea-content-stack .risk-card p{
      margin:0;
      color:#475467;
      font-size:14px;
    }

    .ea-content-stack .related-section{
      margin-top:34px;
    }

    .ea-content-stack .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:18px;
    }

    .ea-content-stack .section-head h2{
      margin:0;
      color:#101828;
      font-size:28px;
    }

    .ea-content-stack .section-head p{
      margin:0;
      color:var(--muted);
    }

    .ea-content-stack .related-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }

    .ea-content-stack .related-card{
      min-width:0;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:15px;
      box-shadow:0 10px 30px rgba(16,24,40,.06);
      transition:transform .2s ease,box-shadow .2s ease;
    }

    .ea-content-stack .related-card:hover{
      transform:translateY(-4px);
      box-shadow:0 18px 38px rgba(11,61,145,.12);
    }

    .ea-content-stack .related-card img{
      width:100%;
      height:175px;
      object-fit:cover;
      background:#eef3fb;
    }

    .ea-content-stack .related-card-body{
      padding:17px;
    }

    .ea-content-stack .related-card h3{
      margin:0 0 8px;
      color:#101828;
      font-size:18px;
      line-height:1.4;
      overflow-wrap:anywhere;
    }

    .ea-content-stack .related-card p{
      display:-webkit-box;
      min-height:48px;
      margin:0 0 13px;
      overflow:hidden;
      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;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:8px;
      color:#7a8495;
      font-size:12px;
    }

    .footer{
      color:#c9d4e7;
      background:#07162f;
    }

    .footer-main{
      display:grid;
      grid-template-columns:1.45fr repeat(3,1fr);
      gap:46px;
      padding:58px 0 42px;
    }

    .footer .logo{
      color:#fff;
    }

    .footer-brand p{
      max-width:430px;
      margin:18px 0;
      color:#aebbd1;
      font-size:14px;
    }

    .footer-social{
      color:#fff;
    }

    .footer h3{
      margin:5px 0 16px;
      color:#fff;
      font-size:16px;
    }

    .footer-links,
    .footer-contact{
      display:grid;
      gap:10px;
      font-size:14px;
    }

    .footer-links a,
    .footer-contact a{
      color:#c9d4e7;
    }

    .footer-links a:hover,
    .footer-contact a:hover{
      color:#fff;
    }

    .footer-contact span{
      color:#95a4bd;
    }

    .footer-bottom{
      min-height:68px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
      padding:15px 0;
      color:#91a0b9;
      border-top:1px solid rgba(255,255,255,.1);
      font-size:13px;
    }

    @media (max-width:1180px){
      .main-nav{
        display:none;
      }

      .header-btns{
        margin-left:auto;
      }

      .hamburger{
        display:flex;
      }
    }

    @media (max-width:960px){
      .ea-content-stack .product-layout{
        grid-template-columns:1fr;
      }

      .ea-content-stack .product-side{
        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:680px){
      .container{
        width:min(100% - 28px,1220px);
      }

      .topbar .container{
        min-height:42px;
      }

      .topbar-welcome{
        display:none;
      }

      .topbar-contact{
        width:100%;
        justify-content:space-between;
        gap:10px;
      }

      .header-inner{
        min-height:68px;
        gap:10px;
      }

      .header .logo img{
        width:38px;
        height:38px;
      }

      .header .logo span{
        max-width:125px;
      }

      .header-member,
      .header-account{
        display:none;
      }

      .ea-content-stack .product-hero{
        padding:46px 0 42px;
      }

      .ea-content-stack .product-heading h1{
        font-size:36px;
      }

      .ea-content-stack .product-summary{
        font-size:15px;
      }

      .ea-content-stack .product-layout{
        margin-top:20px;
      }

      .ea-content-stack .product-cover{
        padding:12px;
      }

      .ea-content-stack .product-body{
        padding:23px 18px;
        font-size:15px;
      }

      .ea-content-stack .product-side{
        grid-template-columns:1fr;
      }

      .ea-content-stack .section-head{
        display:block;
      }

      .ea-content-stack .section-head p{
        margin-top:5px;
      }

      .ea-content-stack .related-grid{
        grid-template-columns:1fr;
      }

      .ea-content-stack .related-card{
        display:grid;
        grid-template-columns:120px minmax(0,1fr);
      }

      .ea-content-stack .related-card img{
        height:100%;
        min-height:155px;
      }

      .footer-main{
        grid-template-columns:1fr;
        gap:28px;
        padding:42px 0 30px;
      }

      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
        gap:5px;
      }
    }