:root{--primary:#0B3D91;--cyan:#00B8D9;--ink:#17233d;--muted:#667085;--line:#dfe5ef;--bg:#f4f7fb;--white:#fff;--shadow:0 16px 45px rgba(11,61,145,.11)}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--bg);font:15px/1.7 Arial,"Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button{font:inherit}.container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#10264e;color:#dce8fa;font-size:13px}.topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between}.topbar-links{display:flex;gap:22px}.topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:var(--white);border-bottom:1px solid var(--line)}.header-inner{min-height:76px;display:flex;align-items:center;gap:32px}.logo{display:flex;align-items:center;gap:8px;white-space:nowrap;font-weight:800;color:var(--primary);font-size:17px}.logo img{width:30px;height:30px;object-fit:contain}.logo-mark{width:30px;height:30px;display:grid;place-items:center;border-radius:7px;background:var(--primary);color:#fff;font-size:12px}.main-nav{flex:1}.nav-list{display:flex;align-items:stretch;justify-content:center;gap:3px;list-style:none;margin:0;padding:0}.nav-item{position:relative}.nav-link{display:block;padding:25px 13px;color:#344054;font-weight:600;white-space:nowrap}.nav-link:hover,.nav-link:focus{color:var(--primary)}.dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);width:300px;padding:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:30}.mega-menu{width:680px}.nav-item:focus-within .dropdown-panel,.nav-item:hover .dropdown-panel,.nav-item:focus-within .mega-menu,.nav-item:hover .mega-menu{opacity:1;visibility:visible;pointer-events:auto}.dropdown-panel:before,.mega-menu:before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px}.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.menu-heading{margin:0 0 12px;color:var(--primary);font-size:15px}.menu-list{list-style:none;padding:0;margin:0}.menu-list li+li{border-top:1px solid #eef2f7}.menu-list a{display:block;padding:7px 0;color:#475467}.menu-list a:hover{color:var(--cyan)}.broker-mega-card,.video-mega-card{display:flex;gap:10px;padding:9px 0;border-top:1px solid #eef2f7}.broker-mega-card img,.video-mega-card img{width:42px;height:32px;object-fit:contain}.video-mega-card img{border-radius:4px;object-fit:cover}.mega-title,.mega-meta{display:block}.mega-title{font-size:13px}.mega-meta{color:var(--muted);font-size:11px}.header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}.account-link{padding:8px 15px;border:1px solid var(--primary);color:var(--primary);border-radius:4px;font-weight:700}.hamburger{display:none;border:0;background:transparent;width:40px;height:40px;padding:8px;cursor:pointer}.hamburger span{display:block;height:2px;margin:5px 0;background:var(--primary);transition:.2s}.hamburger.active span:first-child{transform:translateY(7px) rotate(45deg)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:last-child{transform:translateY(-7px) rotate(-45deg)}
    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(9,28,61,.46);z-index:40}.drawer-overlay.open{display:block}.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(380px,88vw);padding:20px;background:#fff;z-index:50;overflow:auto;transform:translateX(105%);transition:.25s;box-shadow:-16px 0 40px rgba(0,0,0,.15)}.mobile-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line);font-weight:800;color:var(--primary)}.drawer-head a{margin-left:auto}.drawer-close{border:0;background:#eef3fb;color:var(--primary);width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:21px}.drawer-menu{padding-top:12px}.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf1f6;background:none;text-align:left;color:var(--ink);cursor:pointer}.drawer-toggle:after{content:"+";float:right;color:var(--primary)}.drawer-toggle.active:after{content:"-"}.drawer-submenu{max-height:0;overflow:hidden;padding-left:16px;transition:max-height .25s}.drawer-submenu.open{max-height:500px}.drawer-submenu a{display:block;padding:8px 0;color:var(--muted);border-bottom:1px solid #f1f3f7}
    .download-page-main{padding:56px 0 76px}.download-hero{text-align:center;padding:14px 0 42px}.eyebrow{display:inline-block;margin-bottom:12px;color:var(--cyan);font-size:13px;font-weight:800;letter-spacing:1px}.download-hero h1{margin:0 auto 14px;font-size:clamp(30px,5vw,52px);line-height:1.15;color:var(--primary)}.download-hero p{max-width:650px;margin:0 auto;color:var(--muted);font-size:17px}.download-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:stretch}.download-card,.version-card,.step-card,.faq-item{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(23,35,61,.06)}.download-card{padding:34px}.download-card h2,.section-heading h2{margin:0 0 10px;color:var(--primary);font-size:25px}.download-card p{color:var(--muted)}.platforms{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.platform{padding:8px 13px;border:1px solid #c8d5e8;border-radius:4px;color:var(--primary);background:#f7faff}.primary-button{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border:0;border-radius:4px;background:var(--primary);color:#fff;font-weight:800;cursor:pointer}.primary-button:hover{background:#082e70}.version-card{padding:28px;background:linear-gradient(145deg,#0B3D91,#1767b7);color:#fff}.version-card h2{margin:0 0 18px;font-size:22px}.version-line{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.2)}.version-line span:last-child{font-weight:800;color:#8ff2ff}.section{padding-top:58px}.section-heading{text-align:center;margin-bottom:25px}.section-heading p{margin:0;color:var(--muted)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.step-card{padding:25px}.step-no{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:#dff8fc;color:var(--primary);font-weight:800}.step-card h3{margin:16px 0 5px;font-size:18px}.step-card p{margin:0;color:var(--muted)}.faq-list{max-width:800px;margin:auto}.faq-item{padding:20px 24px}.faq-item+.faq-item{margin-top:12px}.faq-item h3{margin:0 0 6px;font-size:16px}.faq-item p{margin:0;color:var(--muted)}
    .footer{background:#10264e;color:#dce8fa}.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;padding:46px 0}.footer h3{margin:0 0 12px;color:#fff;font-size:15px}.footer-brand>span{color:#fff;font-size:20px;font-weight:800}.footer p{color:#aebed8;max-width:260px}.footer-links{list-style:none;margin:0;padding:0}.footer-links li+li{margin-top:5px}.footer a{color:#c5d4e9}.footer a:hover{color:#8ff2ff}.footer-contact{display:grid;gap:7px}.footer-bottom{border-top:1px solid rgba(255,255,255,.14)}.footer-bottom-inner{display:flex;justify-content:space-between;gap:20px;padding:16px 0;color:#aebed8;font-size:12px}
    @media(max-width:980px){.header-inner{gap:15px}.main-nav{display:none}.header-btns{margin-left:auto}.hamburger{display:block}.download-panel{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr 1fr}.mega-menu{display:none}}
    @media(max-width:620px){.container{width:min(100% - 28px,1180px)}.topbar-inner{padding:7px 0;align-items:flex-start;gap:5px;flex-direction:column}.topbar-links{gap:12px}.header-inner{min-height:66px}.header-btns>span{display:none}.account-link{padding:7px 10px;font-size:13px}.download-page-main{padding:36px 0 55px}.download-card,.version-card{padding:23px}.download-hero p{font-size:15px}.steps{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr;padding:34px 0}.footer-bottom-inner{align-items:flex-start;flex-direction:column;gap:5px}.platforms{margin:18px 0}}