:root{
      --brand:#0B3D91;
      --theme-token:{主题色};
      --brand-dark:#072b68;
      --brand-soft:#edf4ff;
      --ink:#10213b;
      --muted:#64748b;
      --line:#dbe4f0;
      --surface:#ffffff;
      --page:#f4f7fb;
      --success:#16805c;
      --warning:#b7791f;
      --shadow:0 18px 45px rgba(15,35,70,.10);
      --radius:18px;
    }

    *{
      box-sizing:border-box;
    }

    html{
      scroll-behavior:smooth;
    }

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

    body.drawer-locked{
      overflow:hidden;
    }

    img{
      display:block;
      max-width:100%;
    }

    a{
      color:inherit;
      text-decoration:none;
    }

    button,
    input,
    textarea,
    select{
      font:inherit;
    }

    button{
      color:inherit;
    }

    .container{
      width:min(1200px,calc(100% - 40px));
      margin-inline:auto;
    }

    .topbar{
      position:relative;
      z-index:120;
      color:#dce8ff;
      background:#071a36;
      border-bottom:1px solid rgba(255,255,255,.08);
      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-contact a{
      transition:color .2s ease;
    }

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

    .header{
      position:sticky;
      top:0;
      z-index:110;
      background:rgba(255,255,255,.97);
      border-bottom:1px solid rgba(11,61,145,.10);
      box-shadow:0 6px 24px rgba(15,35,70,.06);
      backdrop-filter:blur(16px);
    }

    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:25px;
    }

    .logo{
      min-width:0;
      display:inline-flex;
      align-items:center;
      gap:11px;
      color:var(--brand-dark);
      font-size:18px;
      font-weight:800;
      letter-spacing:.01em;
    }

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

    .logo span{
      white-space:nowrap;
    }

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

    .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:#263752;
      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(--brand);
      background:var(--brand-soft);
    }

    .has-arrow::after{
      width:6px;
      height:6px;
      margin-left:7px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      content:"";
      transform:rotate(45deg) translateY(-2px);
      transition:transform .2s ease;
    }

    .nav-item:hover .has-arrow::after,
    .nav-item:focus-within .has-arrow::after{
      transform:rotate(225deg) translate(-1px,-1px);
    }

    .dropdown-panel,
    .mega-menu{
      position:absolute;
      top:100%;
      left:50%;
      z-index:130;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      transform:translate(-50%,12px);
      transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    }

    .dropdown-panel::before,
    .mega-menu::before{
      position:absolute;
      right:0;
      bottom:100%;
      left:0;
      height:12px;
      content:"";
    }

    .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:translate(-50%,0);
    }

    .dropdown-panel{
      width:330px;
      padding:18px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:var(--shadow);
    }

    .dropdown-title,
    .mega-heading{
      margin:0 0 12px;
      color:#172944;
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }

    .dropdown-list{
      display:grid;
      gap:5px;
    }

    .dropdown-article{
      display:block;
      padding:9px 10px;
      border-radius:9px;
      color:#43536c;
      font-size:14px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }

    .dropdown-article:hover{
      color:var(--brand);
      background:var(--brand-soft);
    }

    .dropdown-footer,
    .mega-footer{
      display:flex;
      justify-content:center;
      margin-top:14px;
      padding:10px 14px;
      color:var(--brand);
      background:var(--brand-soft);
      border-radius:10px;
      font-size:14px;
      font-weight:750;
    }

    .mega-menu{
      width:min(980px,calc(100vw - 42px));
      padding:22px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 20px 20px;
      box-shadow:var(--shadow);
    }

    .nav-item:nth-last-child(-n+2) .mega-menu{
      left:auto;
      right:-90px;
      transform:translateY(12px);
    }

    .nav-item:nth-last-child(-n+2):hover > .mega-menu,
    .nav-item:nth-last-child(-n+2):focus-within > .mega-menu{
      transform:translateY(0);
    }

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

    .mega-layout{
      display:grid;
      grid-template-columns:190px minmax(0,1fr);
      gap:22px;
    }

    .mega-categories{
      display:grid;
      gap:7px;
    }

    .mega-categories a{
      padding:9px 11px;
      color:#43536c;
      background:#f7f9fc;
      border-radius:9px;
      font-size:14px;
    }

    .mega-categories a:hover{
      color:var(--brand);
      background:var(--brand-soft);
    }

    .mega-card{
      min-width:0;
      padding:13px;
      background:#f8fafc;
      border:1px solid #e5ebf3;
      border-radius:13px;
      transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    }

    .mega-card:hover{
      transform:translateY(-2px);
      border-color:#a9bee3;
      box-shadow:0 10px 25px rgba(11,61,145,.10);
    }

    .mega-broker-head,
    .mega-tool-head{
      display:flex;
      align-items:center;
      gap:9px;
    }

    .mega-broker-head img,
    .mega-tool-head img{
      width:34px;
      height:34px;
      padding:3px;
      object-fit:contain;
      background:#fff;
      border-radius:8px;
    }

    .mega-name{
      display:block;
      min-width:0;
      color:#142640;
      font-size:14px;
      font-weight:750;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }

    .mega-summary{
      display:-webkit-box;
      margin:8px 0 0;
      color:var(--muted);
      font-size:12px;
      line-height:1.55;
      overflow:hidden;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }

    .mega-stats{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:7px;
      margin-top:10px;
    }

    .mega-stats span{
      color:#728096;
      font-size:11px;
    }

    .mega-stats strong{
      display:block;
      color:#243751;
      font-size:12px;
    }

    .video-card > img,
    .product-mega-card > img{
      width:100%;
      height:78px;
      margin-bottom:9px;
      object-fit:cover;
      border-radius:8px;
    }

    .video-meta,
    .product-meta{
      display:flex;
      justify-content:space-between;
      gap:8px;
      margin-top:9px;
      color:#76859a;
      font-size:11px;
    }

    .header-btns{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:2px;
      white-space:nowrap;
    }

    .header-btns > a,
    .account-open{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:0 15px;
      border-radius:10px;
      font-size:14px;
      font-weight:750;
    }

    .account-open{
      color:#fff;
      background:var(--brand);
      box-shadow:0 8px 18px rgba(11,61,145,.20);
    }

    .hamburger{
      display:none;
      width:43px;
      height:43px;
      padding:9px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
      cursor:pointer;
    }

    .hamburger span{
      display:block;
      width:100%;
      height:2px;
      margin:5px 0;
      background:var(--ink);
      border-radius:2px;
      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:200;
      visibility:hidden;
      opacity:0;
      background:rgba(2,10,25,.58);
      backdrop-filter:blur(3px);
      transition:opacity .25s ease,visibility .25s ease;
    }

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

    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      z-index:210;
      width:min(390px,92vw);
      height:100dvh;
      overflow-y:auto;
      background:#fff;
      box-shadow:-22px 0 50px rgba(4,20,47,.22);
      transform:translateX(105%);
      transition:transform .28s ease;
    }

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

    .drawer-head{
      position:sticky;
      top:0;
      z-index:2;
      min-height:70px;
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 18px;
      background:#fff;
      border-bottom:1px solid var(--line);
    }

    .drawer-head > a{
      padding:8px 12px;
      color:#fff;
      background:var(--brand);
      border-radius:9px;
      font-size:14px;
      font-weight:700;
    }

    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      color:#243751;
      background:#f1f5f9;
      border:0;
      border-radius:10px;
      font-size:26px;
      line-height:1;
      cursor:pointer;
    }

    .drawer-menu{
      padding:13px 18px 28px;
    }

    .drawer-link,
    .drawer-toggle{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 4px;
      color:#20334f;
      background:none;
      border:0;
      border-bottom:1px solid #edf1f6;
      text-align:left;
      font-weight:750;
      cursor:pointer;
    }

    .drawer-toggle::after{
      content:"+";
      color:var(--brand);
      font-size:20px;
      font-weight:500;
    }

    .drawer-toggle.active::after{
      content:"−";
    }

    .drawer-submenu{
      max-height:0;
      display:grid;
      gap:4px;
      overflow:hidden;
      opacity:0;
      transition:max-height .3s ease,opacity .25s ease,padding .25s ease;
    }

    .drawer-submenu.open{
      max-height:900px;
      padding:8px 0 11px 13px;
      opacity:1;
    }

    .drawer-submenu a{
      padding:9px 11px;
      color:#5f6f85;
      background:#f7f9fc;
      border-radius:8px;
      font-size:14px;
    }

    .ea-content-stack{
      min-height:650px;
    }

    .ea-content-stack .product-crumbs{
      padding:18px 0;
      color:#6a788d;
      font-size:14px;
    }

    .ea-content-stack .product-crumbs a{
      color:var(--brand);
    }

    .ea-content-stack .product-hero{
      position:relative;
      overflow:hidden;
      padding:42px 0 48px;
      color:#fff;
      background:
        radial-gradient(circle at 88% 10%,rgba(105,157,255,.30),transparent 30%),
        linear-gradient(135deg,#061a3a 0%,#0B3D91 60%,#082c69 100%);
    }

    .ea-content-stack .product-hero::after{
      position:absolute;
      right:-90px;
      bottom:-190px;
      width:430px;
      height:430px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:50%;
      box-shadow:
        0 0 0 45px rgba(255,255,255,.035),
        0 0 0 90px rgba(255,255,255,.025);
      content:"";
    }

    .ea-content-stack .product-heading{
      position:relative;
      z-index:1;
      max-width:920px;
    }

    .ea-content-stack .product-category{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:16px;
      padding:6px 12px;
      color:#dbe8ff;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.18);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
    }

    .ea-content-stack .product-title{
      max-width:900px;
      margin:0;
      font-size:clamp(32px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.03em;
    }

    .ea-content-stack .product-lead{
      max-width:800px;
      margin:20px 0 0;
      color:#d5e3fb;
      font-size:17px;
      line-height:1.85;
    }

    .ea-content-stack .product-meta-bar{
      display:flex;
      flex-wrap:wrap;
      gap:10px 24px;
      margin-top:24px;
      color:#c7d8f4;
      font-size:14px;
    }

    .ea-content-stack .product-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:28px;
      align-items:start;
      padding:40px 0 64px;
    }

    .ea-content-stack .product-main-column{
      min-width:0;
      display:grid;
      gap:24px;
    }

    .ea-content-stack .product-overview,
    .ea-content-stack .product-content,
    .ea-content-stack .related-products,
    .ea-content-stack .product-side-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:0 12px 34px rgba(15,35,70,.06);
    }

    .ea-content-stack .product-overview{
      display:grid;
      grid-template-columns:minmax(220px,36%) minmax(0,1fr);
      gap:28px;
      padding:28px;
    }

    .ea-content-stack .product-cover{
      overflow:hidden;
      background:#eef3f9;
      border:1px solid #e0e8f2;
      border-radius:15px;
      aspect-ratio:4/3;
    }

    .ea-content-stack .product-cover img{
      width:100%;
      height:100%;
      object-fit:cover;
    }

    .ea-content-stack .overview-copy{
      min-width:0;
    }

    .ea-content-stack .section-kicker{
      margin:0 0 7px;
      color:var(--brand);
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }

    .ea-content-stack .section-title{
      margin:0 0 14px;
      color:#132641;
      font-size:26px;
      line-height:1.3;
    }

    .ea-content-stack .product-summary{
      margin:0;
      color:#53647b;
      font-size:16px;
      line-height:1.9;
    }

    .ea-content-stack .overview-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:23px;
    }

    .ea-content-stack .primary-action,
    .ea-content-stack .secondary-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 19px;
      border-radius:11px;
      font-size:14px;
      font-weight:800;
      transition:transform .2s ease,box-shadow .2s ease;
    }

    .ea-content-stack .primary-action{
      color:#fff;
      background:var(--brand);
      box-shadow:0 10px 22px rgba(11,61,145,.22);
    }

    .ea-content-stack .secondary-action{
      color:var(--brand);
      background:var(--brand-soft);
      border:1px solid #cbdcf6;
    }

    .ea-content-stack .primary-action:hover,
    .ea-content-stack .secondary-action:hover{
      transform:translateY(-2px);
    }

    .ea-content-stack .product-content{
      min-width:0;
      max-width:100%;
      padding:30px;
      overflow-x:auto;
    }

    .ea-content-stack .product-body{
      min-width:0;
      max-width:100%;
      color:#34475f;
      font-size:16px;
      line-height:1.9;
      overflow-x:auto;
      overflow-wrap:anywhere;
    }

    .ea-content-stack .product-body h2,
    .ea-content-stack .product-body h3,
    .ea-content-stack .product-body h4{
      margin:1.6em 0 .65em;
      color:#142640;
      line-height:1.35;
    }

    .ea-content-stack .product-body h2{
      padding-bottom:10px;
      border-bottom:1px solid var(--line);
      font-size:25px;
    }

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

    .ea-content-stack .product-body a{
      color:var(--brand);
      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 13px;
      border:1px solid var(--line);
      text-align:left;
    }

    .ea-content-stack .product-sidebar{
      position:sticky;
      top:98px;
      display:grid;
      gap:18px;
    }

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

    .ea-content-stack .side-title{
      margin:0 0 15px;
      color:#182c49;
      font-size:18px;
    }

    .ea-content-stack .detail-list{
      display:grid;
      gap:0;
      margin:0;
    }

    .ea-content-stack .detail-row{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:18px;
      padding:12px 0;
      border-bottom:1px solid #edf1f6;
    }

    .ea-content-stack .detail-row:last-child{
      border-bottom:0;
    }

    .ea-content-stack .detail-row dt{
      color:#768399;
      font-size:13px;
    }

    .ea-content-stack .detail-row dd{
      margin:0;
      color:#263a55;
      font-size:14px;
      font-weight:750;
      text-align:right;
      overflow-wrap:anywhere;
    }

    .ea-content-stack .notice-card{
      color:#634c18;
      background:#fffaf0;
      border-color:#f0dfb8;
    }

    .ea-content-stack .notice-card p{
      margin:0;
      font-size:13px;
      line-height:1.8;
    }

    .ea-content-stack .related-products{
      padding:28px;
    }

    .ea-content-stack .related-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:16px;
      margin-top:20px;
    }

    .ea-content-stack .related-card{
      min-width:0;
      overflow:hidden;
      background:#f8fafc;
      border:1px solid #e3eaf3;
      border-radius:14px;
      transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    }

    .ea-content-stack .related-card:hover{
      transform:translateY(-3px);
      border-color:#adc2e4;
      box-shadow:0 14px 30px rgba(11,61,145,.10);
    }

    .ea-content-stack .related-image{
      width:100%;
      height:145px;
      object-fit:cover;
      background:#e7edf5;
    }

    .ea-content-stack .related-copy{
      padding:15px;
    }

    .ea-content-stack .related-title{
      margin:0;
      color:#172a45;
      font-size:16px;
      line-height:1.45;
    }

    .ea-content-stack .related-summary{
      display:-webkit-box;
      margin:9px 0 0;
      color:#65758a;
      font-size:13px;
      line-height:1.65;
      overflow:hidden;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:3;
    }

    .ea-content-stack .related-meta{
      display:flex;
      justify-content:space-between;
      gap:10px;
      margin-top:12px;
      color:#7c899a;
      font-size:11px;
    }

    .footer{
      color:#c8d5e7;
      background:#07172e;
      border-top:1px solid rgba(255,255,255,.06);
    }

    .footer-main{
      display:grid;
      grid-template-columns:1.5fr 1fr 1fr 1fr;
      gap:42px;
      padding:58px 0 42px;
    }

    .footer .logo{
      color:#fff;
    }

    .footer-brand p{
      max-width:440px;
      margin:18px 0;
      color:#9eb0c8;
      font-size:14px;
      line-height:1.85;
    }

    .footer-social a{
      display:inline-flex;
      padding:8px 12px;
      color:#d7e4f5;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.10);
      border-radius:9px;
      font-size:13px;
    }

    .footer-title{
      margin:5px 0 18px;
      color:#fff;
      font-size:16px;
    }

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

    .footer-links a,
    .footer-contact a{
      color:#aebdd0;
      font-size:14px;
      transition:color .2s ease;
    }

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

    .footer-contact span{
      color:#7187a2;
      font-size:12px;
    }

    .footer-bottom{
      min-height:66px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      color:#879ab3;
      border-top:1px solid rgba(255,255,255,.08);
      font-size:13px;
    }

    .footer-bottom-links{
      display:flex;
      gap:18px;
    }

    @media (max-width:1080px){
      .main-nav{
        display:none;
      }

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

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

      .hamburger{
        display:block;
      }

      .ea-content-stack .product-layout{
        grid-template-columns:minmax(0,1fr) 290px;
      }
    }

    @media (max-width:820px){
      .topbar-welcome{
        display:none;
      }

      .topbar-inner{
        justify-content:center;
      }

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

      .ea-content-stack .product-sidebar{
        position:static;
        grid-template-columns:1fr 1fr;
      }

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

      .ea-content-stack .product-cover{
        max-height:390px;
      }

      .ea-content-stack .related-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }

      .footer-main{
        grid-template-columns:1fr 1fr;
      }
    }

    @media (max-width:600px){
      .container{
        width:min(100% - 28px,1200px);
      }

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

      .topbar-contact a{
        font-size:11px;
      }

      .header-btns > a:not(.account-open){
        display:none;
      }

      .account-open{
        min-height:38px;
        padding-inline:12px;
      }

      .logo span{
        max-width:135px;
        overflow:hidden;
        text-overflow:ellipsis;
      }

      .ea-content-stack .product-hero{
        padding:32px 0 38px;
      }

      .ea-content-stack .product-title{
        font-size:34px;
      }

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

      .ea-content-stack .product-layout{
        padding:26px 0 45px;
      }

      .ea-content-stack .product-overview,
      .ea-content-stack .product-content,
      .ea-content-stack .related-products,
      .ea-content-stack .product-side-card{
        padding:20px;
        border-radius:14px;
      }

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

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

      .ea-content-stack .related-image{
        height:190px;
      }

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

      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
        padding:20px 0;
      }
    }