:root{
      --theme:#0B3D91;
      --theme-dark:#072c69;
      --theme-soft:#eaf1fb;
      --accent:#19b86b;
      --ink:#132033;
      --muted:#667085;
      --line:#e4e9f1;
      --surface:#fff;
      --page:#f5f7fb;
      --radius:16px;
      --shadow:0 16px 40px rgba(16,34,64,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--page);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.7}
    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(1200px,calc(100% - 40px));margin:0 auto}

    .topbar{background:#07162d;color:#cbd5e1;font-size:13px}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;align-items:center;gap:20px}
    .topbar-contact a:hover{color:#fff}

    .header{position:relative;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 5px 20px rgba(15,31,54,.04)}
    .header-inner{height:78px;display:flex;align-items:center;gap:25px}
    .logo{display:inline-flex;align-items:center;gap:11px;min-width:0;font-size:20px;font-weight:800;color:var(--theme)}
    .logo img{width:42px;height:42px;object-fit:contain;border-radius:9px}
    .logo span{white-space:nowrap}
    .main-nav{margin-left:auto;height:100%}
    .nav-list{height:100%;display:flex;align-items:center;gap:2px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative;height:100%;display:flex;align-items:center}
    .nav-link{height:100%;display:flex;align-items:center;padding:0 13px;font-size:15px;font-weight:650;color:#25344c;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .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)}
    .nav-item:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s ease;background:#fff;border:1px solid var(--line);box-shadow:0 22px 55px rgba(16,32,54,.16)}
    .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{left:0;width:340px;padding:20px;border-radius:0 0 15px 15px}
    .dropdown-title{margin-bottom:12px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.05em}
    .dropdown-article{display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
    .dropdown-article:hover{color:var(--theme)}
    .dropdown-more{display:block;margin-top:12px;color:var(--theme);font-size:13px;font-weight:750}
    .mega-menu{right:-260px;width:min(960px,calc(100vw - 40px));padding:24px;border-radius:0 0 18px 18px}
    .mega-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:18px}
    .mega-title{font-size:19px;font-weight:800}
    .mega-note{margin-top:3px;color:var(--muted);font-size:13px}
    .text-link{color:var(--theme);font-size:14px;font-weight:750}
    .mega-grid{display:grid;gap:12px}
    .broker-mega-grid,.tools-mega-grid{grid-template-columns:repeat(3,1fr)}
    .mega-broker-card,.mega-tool{display:flex;align-items:center;gap:12px;min-width:0;padding:13px;border:1px solid var(--line);border-radius:12px;background:#fbfcfe}
    .mega-broker-card:hover,.mega-tool:hover,.mega-video-card:hover,.mega-product-card:hover{border-color:#a8c3ed;background:var(--theme-soft)}
    .mega-broker-card img,.mega-tool>img{width:42px;height:42px;flex:0 0 auto;object-fit:contain;border-radius:9px;background:#fff}
    .mega-broker-name,.mega-tool strong{font-size:14px;font-weight:800}
    .mega-broker-rating{color:#d98500;font-size:12px}
    .mega-broker-meta,.mega-tool small{display:block;color:var(--muted);font-size:11px;line-height:1.45}
    .mega-footer{display:block;margin-top:17px;padding-top:13px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:750;text-align:right}
    .video-mega-layout,.product-mega-layout{display:grid;grid-template-columns:185px 1fr;gap:22px}
    .mega-categories{display:flex;flex-direction:column;gap:7px}
    .mega-categories a{padding:7px 10px;border-radius:8px;background:#f5f7fa;font-size:13px}
    .mega-categories a:hover{background:var(--theme-soft);color:var(--theme)}
    .mega-video-grid,.mega-product-grid{grid-template-columns:repeat(3,1fr)}
    .mega-video-card,.mega-product-card{min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:11px;background:#fff}
    .mega-video-media,.mega-product-media{position:relative;height:92px;background:#e8edf5}
    .mega-video-media img,.mega-product-media img{width:100%;height:100%;object-fit:cover}
    .mega-duration{position:absolute;right:6px;bottom:6px;padding:2px 6px;border-radius:5px;background:rgba(0,0,0,.72);color:#fff;font-size:11px}
    .mega-card-body{padding:9px}
    .mega-card-title{overflow:hidden;margin:0;font-size:13px;font-weight:750;white-space:nowrap;text-overflow:ellipsis}
    .mega-card-summary{display:-webkit-box;overflow:hidden;margin:4px 0 0;color:var(--muted);font-size:11px;line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .mega-product-meta{margin-top:6px;color:#7d8898;font-size:10px}
    .header-btns{display:flex;align-items:center;gap:10px}
    .header-member{white-space:nowrap}
    .header-member a{color:var(--theme);font-size:14px;font-weight:700}
    .account-btn{padding:9px 17px;border-radius:9px;background:var(--theme);color:#fff;font-size:14px;font-weight:750;white-space:nowrap}
    .account-btn:hover{background:var(--theme-dark)}
    .hamburger{display:none;width:42px;height:42px;padding:10px;border:0;border-radius:9px;background:var(--theme-soft)}
    .hamburger span{display:block;width:22px;height:2px;margin:4px auto;background:var(--theme);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

    .drawer-overlay{position:fixed;inset:0;z-index:90;visibility:hidden;opacity:0;background:rgba(4,13,29,.62);transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;z-index:100;top:0;right:0;width:min(390px,90vw);height:100%;overflow-y:auto;background:#fff;box-shadow:-20px 0 60px rgba(0,0,0,.2);transform:translateX(105%);transition:.28s}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{min-height:74px;display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}
    .drawer-head>a{padding:7px 12px;border-radius:8px;background:var(--theme);color:#fff;font-size:13px}
    .drawer-close{margin-left:auto;width:38px;height:38px;border:0;border-radius:50%;background:#edf1f6;color:#2b3a50;font-size:25px}
    .drawer-menu{padding:13px 18px 30px}
    .drawer-link,.drawer-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:13px 2px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--ink);font-weight:750;text-align:left}
    .drawer-toggle:after{content:"+";font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:6px 0 10px 13px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 5px;color:var(--muted);font-size:14px}

    .ea-content-stack{min-width:0}
    .ea-content-stack .product-hero{padding:38px 0 34px;background:linear-gradient(135deg,#071d42,#0B3D91 56%,#1760b9);color:#fff}
    .ea-content-stack .breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:20px;color:#c8daf5;font-size:13px}
    .ea-content-stack .breadcrumbs a:hover{color:#fff}
    .ea-content-stack .product-intro-card{display:grid;grid-template-columns:minmax(280px,420px) minmax(0,1fr);gap:38px;align-items:center}
    .ea-content-stack .product-cover{overflow:hidden;aspect-ratio:4/3;padding:14px;border:1px solid rgba(255,255,255,.2);border-radius:22px;background:rgba(255,255,255,.1);box-shadow:0 24px 55px rgba(0,0,0,.24)}
    .ea-content-stack .product-cover img{width:100%;height:100%;object-fit:cover;border-radius:14px;background:#fff}
    .ea-content-stack .product-category{display:inline-flex;padding:5px 11px;border:1px solid rgba(255,255,255,.25);border-radius:999px;background:rgba(255,255,255,.11);font-size:13px}
    .ea-content-stack .product-title{margin:15px 0 13px;font-size:clamp(30px,4vw,50px);line-height:1.18;letter-spacing:-.02em}
    .ea-content-stack .product-summary{max-width:720px;margin:0;color:#e2ebfa;font-size:17px;line-height:1.85}
    .ea-content-stack .product-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px;color:#c8daf5;font-size:13px}
    .ea-content-stack .product-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .ea-content-stack .primary-action,.ea-content-stack .secondary-action{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:10px;font-weight:750}
    .ea-content-stack .primary-action{background:#fff;color:var(--theme)}
    .ea-content-stack .secondary-action{border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.08);color:#fff}
    .ea-content-stack .product-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:28px;padding-top:34px;padding-bottom:48px}
    .ea-content-stack .content-panel,.ea-content-stack .side-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
    .ea-content-stack .content-panel{padding:clamp(22px,4vw,42px)}
    .ea-content-stack .section-kicker{color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.08em}
    .ea-content-stack .content-heading{margin:4px 0 22px;font-size:27px;line-height:1.35}
    .ea-content-stack .product-body{min-width:0;max-width:100%;overflow-x:auto;color:#334155;font-size:16px;line-height:1.9}
    .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;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{padding:10px;border:1px solid var(--line)}
    .ea-content-stack .product-body a{color:var(--theme);text-decoration:underline}
    .ea-content-stack .product-body h2,.ea-content-stack .product-body h3{color:#18283f;line-height:1.4}
    .ea-content-stack .product-note{margin-top:28px;padding:17px 19px;border-left:4px solid var(--theme);border-radius:0 10px 10px 0;background:var(--theme-soft);color:#40516b;font-size:14px}
    .ea-content-stack .product-sidebar{display:flex;flex-direction:column;gap:18px;min-width:0}
    .ea-content-stack .side-card{padding:22px}
    .ea-content-stack .side-card h2{margin:0 0 16px;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:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
    .ea-content-stack .detail-list li:last-child{border-bottom:0}
    .ea-content-stack .detail-list span{color:var(--muted)}
    .ea-content-stack .detail-list strong{text-align:right}
    .ea-content-stack .side-cta{display:block;margin-top:17px;padding:12px;border-radius:9px;background:var(--theme);color:#fff;font-weight:750;text-align:center}
    .ea-content-stack .risk-card{background:#fffaf0;border-color:#f0dbad;box-shadow:none}
    .ea-content-stack .risk-card p{margin:0;color:#735923;font-size:13px;line-height:1.75}
    .ea-content-stack .related-section{padding:48px 0 64px;background:#eef2f8}
    .ea-content-stack .section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}
    .ea-content-stack .section-head h2{margin:0;font-size:28px}
    .ea-content-stack .section-head p{margin:5px 0 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;border:1px solid var(--line);border-radius:14px;background:#fff;transition:.2s}
    .ea-content-stack .related-card:hover{transform:translateY(-4px);border-color:#a9c4ed;box-shadow:var(--shadow)}
    .ea-content-stack .related-image{height:175px;background:#e7edf5}
    .ea-content-stack .related-image img{width:100%;height:100%;object-fit:cover}
    .ea-content-stack .related-body{padding:17px}
    .ea-content-stack .related-body h3{margin:0 0 8px;font-size:17px;line-height:1.45}
    .ea-content-stack .related-body p{display:-webkit-box;overflow:hidden;margin:0;color:var(--muted);font-size:13px;line-height:1.65;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .ea-content-stack .related-meta{display:flex;justify-content:space-between;gap:10px;margin-top:13px;color:#78869a;font-size:12px}

    .footer{background:#07162d;color:#c4cfdf}
    .footer-main{padding:54px 0 42px}
    .footer-grid{display:grid;grid-template-columns:1.55fr .8fr .8fr 1fr;gap:38px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:470px;margin:18px 0;color:#acb8c9;font-size:14px}
    .footer-risk{padding:12px 14px;border:1px solid #263b58;border-radius:9px;background:#0b1e38;color:#94a5bb;font-size:12px;line-height:1.7}
    .footer h3{margin:4px 0 17px;color:#fff;font-size:15px}
    .footer-links,.footer-contact{display:flex;flex-direction:column;gap:9px}
    .footer-links a,.footer-contact a{color:#acb8c9;font-size:14px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-social{margin-top:7px}
    .footer-bottom{border-top:1px solid #20344f;background:#051225}
    .footer-bottom-inner{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#8292a9;font-size:12px}
    .footer-bottom a:hover{color:#fff}

    @media(max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{height:70px}
      .header-btns{margin-left:auto}
      .ea-content-stack .product-layout{grid-template-columns:minmax(0,1fr) 280px}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:780px){
      .container{width:min(100% - 28px,1200px)}
      .topbar-welcome{display:none}
      .topbar-inner{justify-content:center}
      .topbar-contact{width:100%;justify-content:space-between;gap:10px}
      .header-member{display:none}
      .logo span{max-width:160px;overflow:hidden;text-overflow:ellipsis}
      .ea-content-stack .product-hero{padding:25px 0 30px}
      .ea-content-stack .product-intro-card{grid-template-columns:1fr;gap:24px}
      .ea-content-stack .product-cover{width:min(100%,520px);margin:auto}
      .ea-content-stack .product-title{font-size:34px}
      .ea-content-stack .product-layout{grid-template-columns:1fr}
      .ea-content-stack .product-sidebar{display:grid;grid-template-columns:1fr 1fr}
      .ea-content-stack .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .footer-bottom-inner{padding:17px 0;flex-direction:column;align-items:flex-start}
    }
    @media(max-width:520px){
      .topbar-contact a{font-size:11px}
      .topbar-contact a:first-child{display:none}
      .logo img{width:37px;height:37px}
      .logo span{max-width:118px;font-size:17px}
      .account-btn{padding:8px 12px}
      .ea-content-stack .breadcrumbs{margin-bottom:15px}
      .ea-content-stack .product-title{font-size:29px}
      .ea-content-stack .product-summary{font-size:15px}
      .ea-content-stack .product-actions>*{width:100%}
      .ea-content-stack .content-panel{padding:20px}
      .ea-content-stack .product-sidebar{display:flex}
      .ea-content-stack .section-head{align-items:flex-start;flex-direction:column}
      .ea-content-stack .related-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }