:root{
      --theme:#0B3D91;
      --template-theme:{主题色};
      --theme-dark:#072a65;
      --theme-light:#eaf1ff;
      --ink:#111827;
      --muted:#64748b;
      --line:#dbe3ef;
      --surface:#ffffff;
      --soft:#f5f7fb;
      --success:#12805c;
      --radius:18px;
      --shadow:0 18px 45px rgba(15,23,42,.10);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--soft);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.7}
    body,button,input,textarea{font:inherit}
    img{max-width:100%;height:auto}
    a{color:inherit;text-decoration:none}
    button{color:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{background:#071a3d;color:#dbe8ff;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar a{margin-left:20px;color:#fff}
    .topbar a:hover{text-decoration:underline}

    .header{position:relative;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 5px 18px rgba(15,23,42,.04)}
    .header-inner{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--theme);font-size:20px;font-weight:900}
    .logo img{width:42px;height:42px;object-fit:contain;border-radius:10px}
    .main-nav{align-self: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:center}
    .nav-link{height:100%;display:flex;align-items:center;padding:0 13px;font-size:15px;font-weight:700;white-space:nowrap;border-bottom:3px solid transparent}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme);border-bottom-color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;margin:-4px 0 0 8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:0;z-index:60;visibility:hidden;opacity:0;transform:translateY(8px);transition:.2s ease;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:var(--shadow)}
    .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;transform:none}
    .dropdown-panel{width:320px;padding:18px}
    .mega-menu{left:50%;width:min(720px,78vw);padding:22px;display:grid;grid-template-columns:1.35fr .85fr;gap:22px;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:none}
    .mega-section{min-width:0}
    .panel-title{margin-bottom:12px;color:var(--theme);font-size:14px;font-weight:900;letter-spacing:.06em}
    .panel-link{display:flex;justify-content:space-between;gap:10px;padding:9px 10px;border-radius:9px;color:#334155;font-size:14px}
    .panel-link small{color:var(--muted);white-space:nowrap}
    .panel-link:hover{background:var(--theme-light);color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
    .mega-card{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:4px 9px;padding:11px;border:1px solid #e7edf5;border-radius:11px;background:#fff;min-width:0}
    .mega-card:hover{border-color:#9bb8eb;background:var(--theme-light)}
    .mega-card img{grid-row:1/3;width:32px;height:32px;object-fit:contain;border-radius:8px}
    .mega-card strong,.mega-card small{min-width:0;overflow:hidden;text-overflow:ellipsis}
    .mega-card strong{font-size:14px;white-space:nowrap}
    .mega-card small{grid-column:1/-1;color:var(--muted);font-size:12px}
    .mega-card img+strong,.mega-card img~small{grid-column:2}
    .mega-section p{margin:0 0 16px;color:var(--muted);font-size:14px}
    .mega-footer{display:block;margin-top:12px;padding:10px 13px;color:#fff;background:var(--theme);border-radius:9px;text-align:center;font-size:14px;font-weight:800}
    .mega-footer:hover{background:var(--theme-dark)}

    .header-btns{display:flex;align-items:center;gap:9px;flex:0 0 auto}
    .member-btn,.open-btn{padding:9px 14px;border-radius:9px;font-size:14px;font-weight:800}
    .member-btn{color:var(--theme);border:1px solid #9db8e4;background:#fff}
    .open-btn{color:#fff;background:var(--theme);border:1px solid var(--theme)}
    .member-btn:hover{background:var(--theme-light)}
    .open-btn:hover{background:var(--theme-dark)}
    .hamburger{display:none;width:42px;height:42px;padding:9px;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:.2s}
    .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:80;visibility:hidden;opacity:0;background:rgba(2,8,23,.58);transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;z-index:90;top:0;right:0;width:min(390px,90vw);height:100vh;overflow-y:auto;background:#fff;box-shadow:-20px 0 50px rgba(2,8,23,.2);transform:translateX(105%);transition:.28s ease}
    .mobile-drawer.open{transform:none}
    .drawer-head{min-height:72px;display:flex;align-items:center;gap:12px;padding:14px 18px;color:#fff;background:var(--theme)}
    .drawer-head>a{padding:6px 10px;border:1px solid rgba(255,255,255,.5);border-radius:7px}
    .drawer-close{margin-left:auto;border:0;color:#fff;background:transparent;font-size:34px;line-height:1;cursor:pointer}
    .drawer-menu{padding:12px 18px 28px}
    .drawer-link,.drawer-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:14px 6px;border:0;border-bottom:1px solid var(--line);background:#fff;text-align:left;font-weight:800;cursor:pointer}
    .drawer-toggle:after{content:"+";color:var(--theme);font-size:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:7px 0 12px 14px;border-bottom:1px solid var(--line)}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:9px 8px;color:#475569;font-size:14px;border-radius:7px}
    .drawer-submenu a:hover{color:var(--theme);background:var(--theme-light)}

    .ea-content-stack{min-width:0}
    .ea-content-stack .product-hero{padding:48px 0 34px;background:linear-gradient(135deg,#061a42 0%,#0B3D91 62%,#2459ad 100%);color:#fff;overflow:hidden}
    .ea-content-stack .breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:23px;color:#d6e4ff;font-size:14px}
    .ea-content-stack .breadcrumb a:hover{text-decoration:underline}
    .ea-content-stack .product-overview{position:relative;display:grid;grid-template-columns:minmax(280px,430px) minmax(0,1fr);gap:52px;align-items:center}
    .ea-content-stack .product-overview:after{content:"";position:absolute;right:-110px;top:-100px;width:270px;height:270px;border:2px solid rgba(255,255,255,.14);border-radius:50%}
    .ea-content-stack .product-image-wrap{position:relative;z-index:1;padding:24px;background:#fff;border:3px solid #111827;border-radius:24px;box-shadow:14px 14px 0 #f8ce46}
    .ea-content-stack .product-image-wrap img{display:block;width:100%;aspect-ratio:4/3;object-fit:contain;border-radius:12px;background:#f4f7fb}
    .ea-content-stack .product-category{display:inline-flex;margin-bottom:13px;padding:6px 11px;border:1px solid rgba(255,255,255,.38);border-radius:999px;background:rgba(255,255,255,.12);font-size:13px;font-weight:800}
    .ea-content-stack .product-overview h1{position:relative;z-index:1;margin:0 0 15px;font-size:clamp(32px,5vw,54px);line-height:1.16;letter-spacing:-.03em}
    .ea-content-stack .product-summary{position:relative;z-index:1;max-width:690px;margin:0;color:#e7efff;font-size:17px}
    .ea-content-stack .product-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;color:#dce8ff;font-size:14px}
    .ea-content-stack .product-meta span{display:inline-flex;align-items:center;gap:7px}
    .ea-content-stack .product-meta span:before{content:"";width:7px;height:7px;border-radius:50%;background:#f8ce46}
    .ea-content-stack .hero-actions{position:relative;z-index:1;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:46px;padding:11px 19px;border-radius:10px;font-weight:900}
    .ea-content-stack .primary-action{color:#111827;background:#f8ce46;border:2px solid #111827;box-shadow:4px 4px 0 #111827}
    .ea-content-stack .secondary-action{color:#fff;border:1px solid rgba(255,255,255,.55);background:rgba(255,255,255,.1)}
    .ea-content-stack .primary-action:hover{transform:translate(-1px,-1px);box-shadow:6px 6px 0 #111827}
    .ea-content-stack .secondary-action:hover{background:rgba(255,255,255,.2)}

    .ea-content-stack .product-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;padding-top:38px;padding-bottom:65px;align-items:start}
    .ea-content-stack .product-main-column{min-width:0}
    .ea-content-stack .content-card,.ea-content-stack .info-card,.ea-content-stack .related-section{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(15,23,42,.06)}
    .ea-content-stack .content-card{min-width:0;max-width:100%;padding:clamp(22px,4vw,42px)}
    .ea-content-stack .section-heading{display:flex;align-items:center;gap:12px;margin:0 0 24px;font-size:26px;line-height:1.3}
    .ea-content-stack .section-heading:before{content:"";width:7px;height:28px;border-radius:5px;background:var(--theme)}
    .ea-content-stack .product-body{min-width:0;max-width:100%;overflow-x:auto;color:#334155;font-size:16px}
    .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:#0f172a;line-height:1.35}
    .ea-content-stack .product-body h2{margin-top:34px;font-size:25px}
    .ea-content-stack .product-body h3{margin-top:28px;font-size:21px}
    .ea-content-stack .product-body p{margin:0 0 18px}
    .ea-content-stack .product-body a{color:var(--theme);text-decoration:underline}
    .ea-content-stack .product-body img,.ea-content-stack .product-body video,.ea-content-stack .product-body iframe{max-width:100%;border-radius:12px}
    .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:12px;border:1px solid var(--line);text-align:left}
    .ea-content-stack .product-body blockquote{margin:24px 0;padding:18px 20px;border-left:4px solid var(--theme);background:var(--theme-light);border-radius:0 10px 10px 0}
    .ea-content-stack .risk-note{margin-top:24px;padding:16px 18px;border:1px solid #f4c66a;border-radius:12px;background:#fff8e8;color:#714d0d;font-size:14px}
    .ea-content-stack .product-sidebar{display:grid;gap:20px;position:sticky;top:22px}
    .ea-content-stack .info-card{padding:22px}
    .ea-content-stack .info-card h2{margin:0 0 16px;font-size:19px}
    .ea-content-stack .info-list{margin:0}
    .ea-content-stack .info-row{display:grid;grid-template-columns:82px minmax(0,1fr);gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
    .ea-content-stack .info-row:last-child{border-bottom:0}
    .ea-content-stack .info-row dt{color:var(--muted)}
    .ea-content-stack .info-row dd{min-width:0;margin:0;font-weight:800;overflow-wrap:anywhere}
    .ea-content-stack .sidebar-action{display:block;margin-top:17px;padding:12px;color:#fff;background:var(--theme);border-radius:10px;text-align:center;font-weight:900}
    .ea-content-stack .sidebar-action:hover{background:var(--theme-dark)}
    .ea-content-stack .support-card{padding:22px;color:#fff;background:#102b5c;border:2px solid #111827;border-radius:var(--radius);box-shadow:7px 7px 0 #f8ce46}
    .ea-content-stack .support-card h2{margin:0 0 9px;font-size:20px}
    .ea-content-stack .support-card p{margin:0 0 16px;color:#dbe7ff;font-size:14px}
    .ea-content-stack .support-card a{display:block;padding:10px;border:1px solid rgba(255,255,255,.5);border-radius:9px;text-align:center;font-weight:800}

    .ea-content-stack .related-section{margin-top:28px;padding:28px}
    .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;font-size:25px}
    .ea-content-stack .related-head p{margin:0;color:var(--muted);font-size:14px}
    .ea-content-stack .related-products{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .ea-content-stack .related-product{min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:14px;background:#fff;transition:.2s}
    .ea-content-stack .related-product:hover{transform:translateY(-4px);border-color:#9db8e4;box-shadow:0 14px 28px rgba(11,61,145,.11)}
    .ea-content-stack .related-product img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;background:#edf2f8}
    .ea-content-stack .related-product-body{padding:16px}
    .ea-content-stack .related-product h3{margin:0 0 8px;font-size:17px;line-height:1.4}
    .ea-content-stack .related-product p{display:-webkit-box;min-height:3.2em;margin:0 0 12px;overflow:hidden;color:var(--muted);font-size:14px;line-height:1.6;-webkit-line-clamp:2;-webkit-box-orient:vertical}
    .ea-content-stack .related-product-meta{display:flex;justify-content:space-between;gap:8px;color:#64748b;font-size:12px}

    .footer{color:#dbe5f5;background:#07162f}
    .footer .container{padding-top:48px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px;padding-bottom:35px}
    .footer-brand{display:inline-block;margin-bottom:12px;color:#fff;font-size:22px;font-weight:900}
    .footer h3{margin:0 0 15px;color:#fff;font-size:16px}
    .footer p{margin:0 0 10px;color:#aebbd0;font-size:14px}
    .footer-grid>div>a:not(.footer-brand){display:block;width:max-content;max-width:100%;margin:0 0 9px;color:#c5d1e2;font-size:14px}
    .footer-grid>div>a:hover{color:#fff;text-decoration:underline}
    .footer-bottom{padding:18px 0;border-top:1px solid rgba(255,255,255,.12);color:#94a3b8;text-align:center;font-size:13px}

    @media (max-width:1100px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{gap:14px}
      .header-btns{margin-left:auto}
      .ea-content-stack .product-overview{gap:32px}
    }
    @media (max-width:850px){
      .topbar .container{padding:8px 0;align-items:flex-start}
      .topbar .container>span:last-child{display:flex;flex-direction:column;align-items:flex-end}
      .topbar a{margin-left:0}
      .ea-content-stack .product-overview{grid-template-columns:1fr}
      .ea-content-stack .product-image-wrap{max-width:520px;margin:0 auto}
      .ea-content-stack .product-overview-text{text-align:center}
      .ea-content-stack .product-summary{margin-left:auto;margin-right:auto}
      .ea-content-stack .product-meta,.ea-content-stack .hero-actions{justify-content:center}
      .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-products{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:600px){
      .container{width:min(100% - 24px,1180px)}
      .topbar .container{display:block;text-align:center}
      .topbar .container>span{display:block}
      .topbar .container>span:last-child{align-items:center;margin-top:4px}
      .header-inner{height:68px}
      .logo span{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:17px}
      .logo img{width:36px;height:36px}
      .member-btn{display:none}
      .open-btn{padding:8px 10px;font-size:13px}
      .ea-content-stack .product-hero{padding-top:30px}
      .ea-content-stack .product-image-wrap{padding:15px;box-shadow:8px 8px 0 #f8ce46}
      .ea-content-stack .product-overview h1{font-size:32px}
      .ea-content-stack .product-summary{font-size:15px}
      .ea-content-stack .product-meta{display:grid;gap:7px}
      .ea-content-stack .hero-actions{display:grid}
      .ea-content-stack .product-layout{padding-top:22px;padding-bottom:42px}
      .ea-content-stack .content-card,.ea-content-stack .related-section{padding:19px}
      .ea-content-stack .section-heading{font-size:22px}
      .ea-content-stack .product-sidebar{grid-template-columns:1fr}
      .ea-content-stack .related-head{display:block}
      .ea-content-stack .related-head p{margin-top:5px}
      .ea-content-stack .related-products{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer .container{padding-top:36px}
    }