:root{
  --theme:#0B3D91;
  --theme-dark:#07275e;
  --theme-soft:#eaf1fc;
  --ink:#172033;
  --muted:#667085;
  --line:#dfe4ec;
  --surface:#fff;
  --page:#f5f7fa;
  --gold:#c79a39;
  --danger:#a71930;
  --radius:8px;
  --shadow:0 12px 32px rgba(16,24,40,.08);
}
*{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-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.topbar{background:#11141b;color:#d7dbe3;font-size:13px}
.topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.topbar a{margin-left:20px;color:#d7dbe3}
.topbar a:hover{color:#fff}
.header{position:relative;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
.header-inner{height:76px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;min-width:180px;font-weight:800;color:var(--theme);font-size:19px}
.logo img{width:40px;height:40px;object-fit:contain}
.main-nav{align-self:stretch;display:flex;align-items:stretch;margin-left:auto}
.nav-list{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;font-size:15px;font-weight:600;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)}
.dropdown-panel,.mega-menu{position:absolute;top:100%;left:0;visibility:hidden;opacity:0;transform:translateY(8px);transition:.18s ease;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 var(--radius) var(--radius);z-index:40}
.dropdown-panel{width:320px;padding:20px}
.mega-menu{left:50%;width:680px;padding:22px;transform:translate(-50%,8px)}
.nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel{visibility:visible;opacity:1;transform:translateY(0)}
.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{visibility:visible;opacity:1;transform:translate(-50%,0)}
.dropdown-panel::before,.mega-menu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.panel-title{margin:0 0 12px;color:var(--theme);font-size:13px;font-weight:800}
.panel-list{display:grid;gap:4px}
.panel-list a{padding:8px 10px;border-radius:5px;color:#344054;font-size:14px}
.panel-list a:hover{background:var(--theme-soft);color:var(--theme)}
.mega-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.mega-card{min-width:0;padding:12px;border:1px solid var(--line);border-radius:6px;background:#fff}
.mega-card:hover{border-color:var(--theme);box-shadow:0 5px 16px rgba(11,61,145,.09)}
.mega-card img{width:28px;height:28px;object-fit:contain;margin-bottom:8px}
.mega-card strong,.mega-card small{display:block;overflow:hidden}
.mega-card strong{margin-bottom:5px;color:#1d2939;font-size:14px;white-space:nowrap;text-overflow:ellipsis}
.mega-card small{color:var(--muted);font-size:12px;line-height:1.55}
.mega-footer{display:block;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:700}
.header-btns{display:flex;align-items:center;gap:8px}
.member,.open-account{padding:8px 13px;border-radius:5px;font-size:14px;font-weight:700;white-space:nowrap}
.member{border:1px solid var(--theme);color:var(--theme)}
.open-account{background:var(--theme);color:#fff}
.member:hover{background:var(--theme-soft)}
.open-account:hover{background:var(--theme-dark)}
.hamburger{display:none;width:42px;height:42px;padding:10px;border:1px solid var(--line);border-radius:5px;background:#fff;cursor:pointer}
.hamburger span{display:block;width:20px;height:2px;margin:4px auto;background:var(--ink);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:80;visibility:hidden;background:rgba(10,15,25,.58);opacity:0;transition:.2s}
.drawer-overlay.open{visibility:visible;opacity:1}
.mobile-drawer{position:fixed;top:0;right:0;z-index:90;width:min(390px,88vw);height:100%;overflow-y:auto;background:#fff;transform:translateX(100%);transition:.25s ease;box-shadow:-16px 0 40px rgba(0,0,0,.18)}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:8px;padding:15px;background:#fff;border-bottom:1px solid var(--line)}
.drawer-head>a{padding:8px 11px;border:1px solid var(--theme);border-radius:5px;color:var(--theme);font-size:14px;font-weight:700}
.drawer-close{margin-left:auto;width:38px;height:38px;border:0;background:var(--theme-soft);color:var(--theme);font-size:25px;cursor:pointer}
.drawer-menu{padding:10px 16px 28px}
.drawer-link,.drawer-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;padding:13px 4px;border:0;border-bottom:1px solid var(--line);background:none;color:var(--ink);text-align:left;font-weight:700;cursor:pointer}
.drawer-toggle::after{content:"+";font-size:20px;color:var(--theme)}
.drawer-toggle.active::after{content:"−"}
.drawer-submenu{display:none;padding:7px 0 9px 14px;border-bottom:1px solid var(--line)}
.drawer-submenu.open{display:grid}
.drawer-submenu a{padding:8px;color:var(--muted);font-size:14px}
.drawer-submenu a:hover{color:var(--theme)}
.ea-content-stack{min-width:0}
.ea-content-stack .product-crumb{background:#fff;border-bottom:1px solid var(--line)}
.ea-content-stack .product-crumb .container{padding-top:14px;padding-bottom:14px;color:var(--muted);font-size:14px}
.ea-content-stack .product-crumb a{color:var(--theme)}
.ea-content-stack .product-hero{padding:48px 0;background:linear-gradient(180deg,#fff 0%,#f5f7fa 100%)}
.ea-content-stack .product-summary{display:grid;grid-template-columns:minmax(280px,440px) minmax(0,1fr);gap:48px;align-items:center}
.ea-content-stack .product-image{display:flex;align-items:center;justify-content:center;min-height:360px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.ea-content-stack .product-image img{width:100%;max-height:390px;object-fit:contain}
.ea-content-stack .product-category{display:inline-flex;margin-bottom:14px;padding:4px 9px;border-left:3px solid var(--gold);background:#fff8e8;color:#725215;font-size:13px;font-weight:700}
.ea-content-stack .product-copy{min-width:0}
.ea-content-stack .product-copy h1{margin:0 0 16px;color:#101828;font-size:clamp(30px,4vw,48px);line-height:1.2;word-break:break-word;letter-spacing:0}
.ea-content-stack .product-lead{margin:0;color:#475467;font-size:17px}
.ea-content-stack .product-meta{display:flex;flex-wrap:wrap;gap:10px 24px;margin:24px 0;color:var(--muted);font-size:14px}
.ea-content-stack .product-meta strong{color:var(--ink)}
.ea-content-stack .product-actions{display:flex;flex-wrap:wrap;gap:12px}
.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:5px;font-weight:800}
.ea-content-stack .primary-action{background:var(--theme);color:#fff}
.ea-content-stack .primary-action:hover{background:var(--theme-dark)}
.ea-content-stack .secondary-action{border:1px solid var(--theme);background:#fff;color:var(--theme)}
.ea-content-stack .product-main{padding:46px 0 62px}
.ea-content-stack .product-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:30px;align-items:start}
.ea-content-stack .product-panel{min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.ea-content-stack .section-heading{margin:0;padding:20px 24px;border-bottom:1px solid var(--line);font-size:22px}
.ea-content-stack .product-body{min-width:0;max-width:100%;overflow-x:auto;padding:26px;color:#344054}
.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}
.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 pre{max-width:100%;overflow-x:auto}
.ea-content-stack .product-body a{color:var(--theme);text-decoration:underline}
.ea-content-stack .product-sidebar{display:grid;gap:18px}
.ea-content-stack .side-panel{padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.ea-content-stack .side-panel h2{margin:0 0 14px;font-size:18px}
.ea-content-stack .fact-list{margin:0;padding:0;list-style:none}
.ea-content-stack .fact-list li{display:flex;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.ea-content-stack .fact-list li:last-child{border-bottom:0}
.ea-content-stack .fact-list span{color:var(--muted)}
.ea-content-stack .risk-note{margin:0;color:#667085;font-size:13px}
.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;font-size:27px}
.ea-content-stack .related-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:var(--radius);transition:.2s}
.ea-content-stack .related-card:hover{transform:translateY(-3px);border-color:#aebbd0;box-shadow:var(--shadow)}
.ea-content-stack .related-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#eef2f7}
.ea-content-stack .related-card-body{padding:17px}
.ea-content-stack .related-card h3{margin:0 0 8px;font-size:17px;line-height:1.45}
.ea-content-stack .related-card p{display:-webkit-box;min-height:48px;margin:0 0 12px;overflow:hidden;color:var(--muted);font-size:14px;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.ea-content-stack .related-card-meta{display:flex;justify-content:space-between;gap:12px;color:#788397;font-size:12px}
.footer{background:#111722;color:#c7ced9}
.footer .container{padding-top:52px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:42px}
.footer h3{margin:0 0 16px;color:#fff;font-size:16px}
.footer a{display:block;margin:8px 0;color:#c7ced9;font-size:14px}
.footer a:hover{color:#fff}
.footer p{color:#9da8b8;font-size:13px}
.footer-brand img{width:48px;height:48px;object-fit:contain;margin-bottom:12px}
.footer-brand strong{color:#fff;font-size:19px}
.footer-bottom{margin-top:38px;padding:20px 0;border-top:1px solid #2a3240;color:#8f9aaa;font-size:13px;text-align:center}
@media (max-width:1080px){
  .main-nav{display:none}
  .header-inner{height:68px}
  .header-btns{margin-left:auto}
  .hamburger{display:block}
}
@media (max-width:820px){
  .container{width:min(100% - 28px,1180px)}
  .topbar .container{padding:8px 0;align-items:flex-start;flex-direction:column;gap:2px}
  .topbar a{margin:0 14px 0 0}
  .ea-content-stack .product-summary{grid-template-columns:1fr;gap:26px}
  .ea-content-stack .product-image{min-height:280px}
  .ea-content-stack .product-layout{grid-template-columns:1fr}
  .ea-content-stack .product-sidebar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ea-content-stack .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .logo{min-width:0;font-size:16px}
  .logo img{width:34px;height:34px}
  .header-btns .member{display:none}
  .open-account{padding:7px 10px}
  .ea-content-stack .product-hero{padding:30px 0}
  .ea-content-stack .product-image{min-height:220px}
  .ea-content-stack .product-copy h1{font-size:30px}
  .ea-content-stack .product-main{padding:30px 0 42px}
  .ea-content-stack .product-sidebar{grid-template-columns:1fr}
  .ea-content-stack .related-grid{grid-template-columns:1fr}
  .ea-content-stack .related-head{display:block}
  .ea-content-stack .related-head p{margin-top:5px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}